Patent Publication Number: US-9907197-B2

Title: Electronic card connection device and electronic device

Description:
RELATED APPLICATIONS 
     This application is a divisional application of U.S. application Ser. No. 14/334,086, filed Jul. 17, 2014, now U.S. Pat. No. 9,445,521, which is incorporated herein by reference in its entirety and claims priority to Chinese Application No. 201310303395.8, filed Jul. 18, 2013, which is incorporated herein by reference in its entirety. 
    
    
     TECHNICAL FIELD 
     The present disclosure relates to an electronic card connection device and an electronic device. 
     BACKGROUND ART 
     A SIM (Subscriber Identity Module) card is common in a mobile device, and is usually mounted on the mobile device via an electronic card connector. 
     The electronic card connectors use a tray to load the SIM card. In order to protect the electronic card and ensure data transmission integrity, a detection switch is provided inside the connector. During the process of inserting and pulling the tray, the mobile device uses the detection switch to detect the position of the electronic card, and activate the switch allowing power and data transmission. 
     Typically, when the tray is inserted, the detection switch will switch the power off before a contact pad of the electronic card contacts a terminal of the connector, and then the detection switch will switch the power on after the contact pad of the electronic card contacts the terminal of the connector. When the tray is pulled out, the detection switch will switch the power off when the contact pad of the electronic card contacts the terminal of the connector, the detection switch then switch the power on after the contact pad of the electronic card is separated from the terminal of the connector. 
     The detection switch is actuated during movement of the tray and if the detection switch is inappropriately actuated during movement of the tray or the detection switch cannot be actuated timely due to too quick inserting and pulling of the tray, the terminal supplying the power or performing data transmission at the moment the electronic card and the terminal contact, thereby causing damage to the data of the mobile device, even damage to the circuit of the electronic card or the mobile device. In addition, the detection switch may be actuated during movement of the tray, so that power supply and data transmission are started when the electronic card and the terminal are not yet fully in contact, thereby causing damage to the data or the circuit of the electronic card or the mobile device. 
     SUMMARY OF THE INVENTION 
     In view of the above problems, the present disclosure correspondingly provides an electronic card connection device and an electronic device. 
     An embodiment of the present disclosure discloses an electronic card connection device. The electronic card connection device comprises a connector, an electronic card tray and a switch. The connector comprises a terminal housing and a shell, the shell and the terminal housing define a mating space. The electronic card tray is capable of being inserted in the mating space, the electronic card tray may comprise an electronic card receiving recess, a mounting block positioned in front of the electronic card receiving recess and an operating handle pivotally connected to the mounting block. The switch can be positioned alongside a rotation range of the operating handle, and partially protruding into the rotation range, so as to allow the rotation of the operating handle to switch the state of the switch. 
     In an embodiment, the operating handle of the electronic card tray comprises a switch actuating member, the switch actuating member is used for pressing the switch. 
     In an embodiment, the electronic card tray comprises a first electronic card receiving recess and a second electronic card receiving recess respectively positioned at opposite sides of the electronic card tray, the operating handle comprises two switch actuating members provided in up-down or vertical direction. 
     In an embodiment, the operating handle of the electronic card tray comprises a pivoting portion, a locking portion and a push portion, the operating handle can be pivotally connected to the mounting block via the pivoting portion, the push portion can be used for rotating the operating handle, the locking portion is used for locking the operating handle on the mounting block, the locking portion and the push portion can be respectively positioned on opposite sides of the pivoting portion. 
     In an embodiment, the electronic card tray comprises a recessed portion and a resilient protruding portion, one of the recessed portion and the resilient protruding portion is the locking portion, the other one of the recessed portion and the resilient protruding portion is provided on the mounting block, the operating handle is locked by the resilient protruding portion engaging the recessed portion. 
     In an embodiment, the pivoting portion of the electronic card tray comprises a shaft portion and an engaging portion connected to the shaft portion, the engaging portion allows the operating handle to engage the mounting block. 
     In an embodiment, the electronic card tray comprises a retaining piece, the retaining piece presses the engaging portion of the pivoting portion. 
     In an embodiment, the electronic card tray comprises an insulative frame body and a metal bottom plate integrally injection molded with the insulative frame body. 
     In an embodiment, the insulative frame body of the electronic card tray comprises a peripheral wall, the electronic card receiving recess is defined by the metal bottom plate and the peripheral wall, a part of the insulative frame body is positioned in front of the electronic card receiving recess constituting the mounting block. 
     In an embodiment, the metal bottom plate of the electronic card tray comprises a pivot hole and the resilient protruding portion, the pivoting portion of the electronic card tray is pivotally connected to the pivot hole. 
     In an embodiment, the metal bottom plate of the electronic card tray comprises a protruding block, the protruding block protrudes out from a corresponding side wall surface of the insulative frame body, the protruding block can be used for retaining the electronic card tray in the connector. 
     In an embodiment, the connector comprises a latching portion, the protruding block of the electronic card tray and the latching portion can be engaged with each other to retain the inserted electronic card tray. 
     In an embodiment, each side edge of the terminal housing comprises a first latch portion and a first limiting portion, each side edge of the shell of the connector comprises a second latch portion and a second limiting portion, the first latch portion and the corresponding second latch portion are engaged with each other and in clearance fit, the first limiting portion and the corresponding second limiting portion are engaged with each other and in clearance fit. 
     In an embodiment, the shell of the connector comprises a support element used for supporting the electronic card tray with the support element partially extends obliquely upward along a mating direction of the electronic card tray. 
     In some embodiments, the switch comprises a movable member, a fixed member and an insulative body, the movable member comprises a clamp portion, the fixed member is partially embedded in the insulative body, the insulative body is clamped on the clamp portion and electrically isolates the movable member and the fixed member. 
     In some embodiments, the switch comprises a movable member, a fixed member and an insulative body, the fixed member comprises a clamp portion, the movable member is partially embedded in the insulative body, the insulative body is clamped on the clamp portion and electrically isolates the movable member and the fixed member. 
     In some embodiments, the electronic card connection device includes two switches, the two switches comprise two movable members, a fixed member and an insulative body, the fixed member comprises a clamp portion, the two movable members are partially embedded in the insulative body, the insulative body is clamped on the clamp portion and electrically isolates the two movable members and the fixed member, one of the two switches is positioned in front of the connector, and the other one of the two switches is positioned in front of and alongside the connector. 
     An electronic device of an embodiment of the present disclosure comprises a casing having an opening, a circuit board and an electronic card connection device of any one of the above embodiments, the connector and the switch are provided on the circuit board, the electronic card tray is inserted into the connector via the opening of the casing. 
     In some of the embodiments of the present disclosure, the switch of the electronic card connection device is actuated using the operating portion and is not actuated using the moving electronic card tray to ensure switching integrity of the power or signal and avoid damage to the electronic device, the electronic card or the stored data caused by inappropriate switching of the switch. 
    
    
     
       BRIEF DESCRIPTION OF THE DRAWINGS 
         FIG. 1  is a schematic diagram of an embodiment of the present disclosure illustrating an electronic card connection device. 
         FIG. 2  is a schematic diagram of an embodiment of the present disclosure illustrating an electronic card tray. 
         FIG. 3  is an exploded view of an embodiment of the present disclosure illustrating an electronic card tray. 
         FIG. 4  is another exploded view of an embodiment of the present disclosure illustrating an electronic card tray. 
         FIG. 5A  is a schematic diagram of an embodiment of the present disclosure illustrating an electronic card tray. 
         FIG. 5B  is a cross-sectional view taken along a line  901 - 901  of  FIG. 5A . 
         FIG. 5C  is across-sectional view taken along a line  902 - 902  of  FIG. 5A . 
         FIG. 6  is a schematic diagram of an embodiment of the present disclosure illustrating a switch. 
         FIG. 7A  is a schematic diagram of an embodiment of the present disclosure illustrating a electronic card connection device. 
         FIG. 7B  is a cross-sectional view taken along a line  903 - 903  of  FIG. 7A . 
         FIG. 7C  is a schematic diagram of an embodiment of the present disclosure illustrating an electronic card connection device. 
         FIG. 7D  is a cross-sectional view taken along a line  904 - 904  of  FIG. 7C . 
         FIG. 8A  is a schematic diagram of an embodiment of the present disclosure, illustrating an electronic card connection device. 
         FIG. 8B  is a cross-sectional view taken along a cutting  905 - 905  of  FIG. 8A . 
         FIG. 9A  is a schematic diagram of another embodiment of the present disclosure illustrating another switch. 
         FIG. 9B  is an exploded view of the switch of  FIG. 9A . 
         FIG. 10A  is a schematic diagram of an embodiment of the present disclosure illustrating the switch and the connector are mounted on the circuit board. 
         FIG. 10B  is a cross-sectional view taken along a line  906 - 906  of  FIG. 10A . 
         FIG. 11A  is a schematic diagram of an embodiment of the present disclosure illustrating a circuit board, a connector, an electronic card tray and a switch group of an electronic device. 
         FIG. 11B  is another schematic diagram of the embodiment of the present disclosure, illustrating the circuit board, the connector, the electronic card tray and the switch group of the electronic device. 
         FIG. 12A  is a schematic diagram of an embodiment of the present disclosure illustrating a switch group. 
         FIG. 12B  is another schematic diagram of the embodiment of the present disclosure illustrating the switch group. 
         FIG. 12C  is an exploded schematic diagram of the embodiment of the present disclosure illustrating the switch group. 
         FIGS. 13A-13E  are schematic diagrams of the present disclosure, illustrating steps that the electronic card tray is ejected from the connector. 
         FIG. 14  is a schematic diagram of an embodiment of the present disclosure, illustrating an electronic card connection device. 
         FIG. 15  is a schematic diagram of an embodiment of the present disclosure, illustrating a connector. 
         FIG. 16  is a schematic diagram of an embodiment of the present disclosure, illustrating a support element of the shell of the connector. 
     
    
    
     DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS 
     In some embodiments, an electronic card connection device is mounted on an electronic device, and the electronic card connection device comprises a connector, an electronic card tray and a switch. Only in the case that a contact pad of the electronic card on the electronic card tray is securely in contact with a corresponding terminal of the connector is ensured, the switch is actuated, therefore, the use security of the electronic device can be ensured, and the data of the electronic device or the electronic card can be protected. In some embodiments, after the electronic card tray is fully inserted, then the switch is actuated, to avoid damage of the electronic device, the electronic card or the stored data. In some embodiments, the switch is actuated under the circumstance that the electronic card tray contacts the terminal and does not move. 
       FIG. 1  is a schematic diagram of an embodiment of the present disclosure illustrating an electronic card connection device  2 .  FIG. 2  is a schematic diagram of an embodiment of the present disclosure illustrating an electronic card tray  6 .  FIG. 3  is an exploded view of an embodiment of the present disclosure illustrating an electronic card tray  6 . Referring to  FIG. 1 , the electronic card connection device  2  comprises a switch  4 , a connector  5  and an electronic card tray  6 . The electronic card tray  6  may be mated with the connector  5 . A part of the electronic card tray  6  can move after the electronic card tray  6  is inserted into the connector  5  to switch the switch  4 , and to control power supply and signal transmission of the connector  5 . 
     Referring to  FIG. 1 , the connector  5  may be provided on a circuit board  3 , and comprises a terminal housing  52  and a shell  53 . The terminal housing  52  and the shell  53  may define a mating space  51 . The electronic card tray  6  may be inserted into the mating space  51  of the connector  5 . 
     Referring to  FIG. 1 ,  FIG. 2  and  FIG. 13B , the electronic card tray  6  may have an electronic card receiving recess  61   a  or  61   b , a mounting block  62  and an operating handle  63 . The electronic card receiving recess  61   a  or  61   b  may receive an electronic card (such as but not limited to the SIM card). The mounting block  62  may be positioned in front of the electronic card receiving recess  61   a  or  61   b . The operating handle  63  may be pivotally connected to the mounting block  62 , and may rotate to form a rotation range  60 , as shown in  FIG. 13B . 
     Referring to  FIG. 1  and  FIG. 13B , the switch  4  may be provided alongside the rotation range  60  of the operating handle  63 , and partially protrudes into the rotation range  60 , allowing rotation of the operating handle  63  and switch the state of the switch  4  (from on to off or from off to on). 
     Referring to  FIGS. 1-3 , the electronic card tray  6  has a space for inserting an electronic card. The electronic card tray  6  defines an electronic card receiving recess  61   a  or  61   b . In an embodiment, the electronic card tray  6  comprises a first electronic card receiving recess  61   a  and a second electronic card receiving recess  61   b , and the first electronic card receiving recess  61   a  and the second electronic card receiving recess  61   b  are provided at opposite sides of the electronic card tray  6 , so the electronic card tray  6  can rotate reversibly on either side of the electronic card tray. The electronic card is inserted face down in either the first electronic card receiving recess  61   a  or the second electronic card receiving recess  61   b  and inserted into connector  5 . In an embodiment, the first electronic card receiving recess  61   a  and the second electronic card receiving recess  61   b  is used for receiving different electronic cards; but the present disclosure is not limited to this. In the present embodiment, the first electronic card receiving recess  61   a  and the second electronic card receiving recess  61   b  may receive a nano SIM card and a micro SIM card, respectively. 
     Referring to  FIGS. 1-3 , the operating handle  63  may be used to assist inserting and withdrawing the electronic card tray  6 . In an embodiment, one part of the operating handle  63  constitutes a front end portion of the electronic card tray  6 , and the other part of the operating handle  63  and the mounting block  62  may overlap in an up and down direction when the operating handle  63  is engaged with the mounting block  62 . 
     In an embodiment, the mounting block  62  defines a front side of the electronic card receiving recess  61   a  or  61   b , therefore, the mounting block  62  can stop the electronic card from falling forward after the electronic card is mounted on the electronic card receiving recess  61   a  or  61   b.    
       FIG. 4  is another exploded view of an embodiment of the present disclosure illustrating an electronic card tray  6 . Referring to  FIGS. 1-4 , the operating handle  63  may comprise a pivoting portion  631 , a locking portion  632  and a push portion  633 , the locking portion  632  and the push portion  633  may be respectively positioned on opposite sides of the pivoting portion  631 . The operating handle  63  is pivotally connected to the mounting block  62  by the pivoting portion  631 . The push portion  633  is pushed allowing the operating handle  63  to rotate around the pivoting portion  631 . The locking portion  632  is used for locking the operating handle  63  on the mounting block  62 . 
     Referring to  FIG. 3 , the push portion  633  of the operating handle  63  may comprise a marking  634 . The marking  634  is used for indicating a pressed position on the operating handle  63 . In an embodiment, the marking  634  comprises a recessed portion. In an embodiment, the marking  634  comprises a protrusion. 
     In an embodiment, the pivoting portion  631  protrudes from the operating handle  63  in part as a pivot. In another embodiment, the pivoting portion  631  may be a pivot hole. 
     Referring to  FIG. 3  and  FIG. 4 , the mounting block  62  may comprise a pivot hole  621 , the pivoting portion  631  of the operating handle  63  is pivotally connected to the pivot hole  621 . 
     In an embodiment, as shown in  FIG. 4 , the pivoting portion  631  of the operating handle  63  comprises a shaft portion  6311  and an engaging portion  6312  connected to the shaft portion  6311 . The shaft portion  6311  may pass through the pivot hole  621 , and rotate in the pivot hole  621 . The engaging portion  6312  can allow the operating handle  63  to engage on the mounting block  62  after the shaft portion  6311  is mounted on the pivot hole  621 , so that the operating handle  63  cannot be easily disengaged from the mounting block  62 . In an embodiment, only part of the cross-sectional dimension of the engaging portion  6312  is greater than the pivot hole  621 . In an embodiment, the engaging portion  6312  is greater than the pivot hole  621 . 
     Referring to  FIG. 3  and  FIG. 4 , in an embodiment, the mounting block  62  may comprise a mounting hole  622 . The mounting hole  622  is connected to the pivot hole  621  and is greater than the pivot hole  621 . The mounting hole  622  may allow the engaging portion  6312  of the pivoting portion  631  to pass through and mount to the shaft portion  6311  in the pivot hole  621 . Because the engaging portion  6312  is greater than the pivot hole  621 , the operating handle  63  does not disengage from the mounting block  62 . 
       FIG. 5A  is a schematic diagram of an embodiment of the present disclosure, illustrating an electronic card tray  6 .  FIG. 5B  is a cross-sectional view taken along a line  901 - 901  of  FIG. 5A .  FIG. 5C  is a cross-sectional view taken along a line  902 - 902  of  FIG. 5A . Referring to  FIG. 5A  and  FIG. 5B , the electronic card tray  6  or the mounting block  62  may comprise a retaining piece  623 . After the shaft portion  6311  of the pivoting portion  631  of the operating handle  63  is mounted in the pivot hole  621 , the retaining piece  623  will press the engaging portion  6312  to avoid the pivoting portion  631  from moving back to the mounting hole  622 . In an embodiment, the retaining piece  623  is made of metal, but the present disclosure is not limited to this. 
     Referring to  FIG. 5A  and  FIG. 5B , in an embodiment, the pivoting portion  631  may comprise an inclined surface  6313 , the retaining piece  623  is pressed on the inclined surface  6313 , to allow the pivoting portion  631  of the operating handle  63  to be maintained in the pivot hole  621 . 
     Referring to  FIG. 1  and  FIG. 5C , the locking portion  632  retains the operating handle  63  on the mounting block  62 , so the operating handle  63  cannot move freely away from the mounting block  62 . In an embodiment, the locking portion  632  comprises a recessed portion, the mounting block  62  comprises a resilient protruding portion  624 , and the operating handle  63  retains the operating handle  63  by the resilient protruding portion  624  engaging the locking portion  632  (or the recessed portion). After the electronic card tray  6  is completely assembled to the connector  5 , the resilient protruding portion  624  is engaged with the locking portion  632 , so the operating handle  63  cannot move freely; but the present disclosure is not limited to this. In an embodiment, the locking portion  632  comprises a protrusion, and the mounting block  62  is provided with a corresponding recessed portion. In an embodiment, the resilient protruding portion  624  is formed on a metal piece, but the present disclosure is not limited to this. In an embodiment, both ends of the metal piece are fixed. In an embodiment, one end of the metal piece is a free end. 
       FIG. 6  is a schematic diagram of an embodiment of the present disclosure illustrating a switch  4 . Referring to  FIG. 1  and  FIG. 2 , the switch  4  may be provided on the circuit board  3 . The switch  4  may comprise a movable member  41 , a fixed member  42  and an insulative body  43 . The switch  4  can be actuated; that is the movable member  41  can be moved to contact the fixed member  42 , or the movable member  41  can be moved away from the fixed member  42 . The insulative body  43  is used for electrically isolating the movable member  41  and the fixed member  42 . 
     In an embodiment, a combination of the movable member  41 , the fixed member  42  and the insulative body  43  may be integrally injection molded, and may be electrically connected to the circuit board  3 , but the present disclosure is not limited to this. In an embodiment, the movable member  41  may comprise a clamp portion  412 , and the insulative body  43  may be clamped on the clamp portion  412 . In an embodiment, the fixed member  42  may be partially embedded in the insulative body  43 . 
     In an embodiment, the fixed member  42  comprises a contact point  421 . After a combination of the fixed member  42  and the insulative body  43 , and the movable member  41  are assembled together, the movable member  41  may contact the contact point  421 ; but the present disclosure is not limited to this. 
     In an embodiment, the switch  4  is normally closed. In an embodiment, the switch  4  is normally open. 
     In an embodiment, the switch  4  is separated from the connector  5 . In an embodiment, the switch  4  is integrated with the connector  5 , so mounting of the switch  4  and the connector  5  is more convenient, and relative position of the switch  4  and the connector  5  may be more accurate. 
     Referring to  FIG. 7A  and  FIG. 7B , in an embodiment, the movable member  41  comprises a press portion  411 . After the switch  4  is mounted, the press portion  411  may partially protrude out from the circuit board  3 . The press portion  411  may partially protrude into the rotation range  60  allowing the operating handle  63  to press the press portion  411 . When the electronic card tray  6  is inserted into the connector  5 , and the operating handle  63  is not in contact with the press portion  411 , the press portion  411  is not pressed, at this time the switch  4  is maintained in a normal state (a normally closed state or a normally open state, and the normally closed state is in the present embodiment). After the operating handle  63  is engaged with the mounting block  62 , the press portion  411  is pressed, at this time the switch  4  is actuated. 
     Referring to  FIG. 7C  and  FIG. 7D , when the electronic card tray  6  is removed out of the connector  5 , the push portion  633  of the operating handle  63  is pushed, and the operating handle  63  is rotated. After the operating handle  63  moves away from the position where the switch  4  is present, the movable member  41  resets back to the position when is not pressed to contact the fixed member  42 . At this time, the electronic device  1  detects the actuating of the switch  4 , and signal access is completed before the electronic card tray  6  is pulled out (the electronic card  8  still contacts the terminal of the connector  5 ). Because the switch is actuated by the movement of the operating handle  63 , power may be off and signal access may be completed before the electronic card tray  6  is pulled out or moved. Therefore, the electronic device  1  may have a longer delay and ensure switching integrity of the power or signal. 
     In addition, referring to  FIGS. 7A-7D , after the electronic card tray  6  is inserted into the connector  5 , the electronic card  8  is in contact with the terminal of the connector  5  before the operating handle  63  presses the switch  4  ( FIG. 7C ). Next, the operating handle  63  is rotated, the electronic device  1  starts to supply power for the electronic card  8  or perform signal access after the switch  4  is pressed ( FIG. 7B ). Thus, it can be ensured that power is supplied or signal access is performed after the electronic card  8  is in contact with the terminal of the connector  5 , switching integrity of the power or signal can be ensured. 
     Referring to  FIG. 7A ,  FIG. 7B ,  FIG. 8A  and  FIG. 8B , in an embodiment, the electronic card tray  6  comprises the first electronic card receiving recess  61   a  and the second electronic card receiving recess  61   b  which are opposite, the first electronic card receiving recess  61   a  may receive a first electronic card, the second electronic card receiving recess  61   b  may receive a second electronic card, the first electronic card and the second electronic card may be the same or different. The operating handle  63  is formed so that the switch  4  can be pressed when either the first electronic card receiving recess  61   a  or the second electronic card receiving recess  61   b  faces upward when the electronic card tray  6  is inserted into the connector  5 . In the examples, as shown in  FIG. 7A  and  FIG. 7B , the electronic card tray  6  is inserted into the connector  5  after the second electronic card receiving recess  61   b  receives the second electronic card, at this time the first electronic card receiving recess  61   a  faces upward. When the operating handle  63  rotates toward the mounting block  62  and moves to the position of the switch  4 , the operating handle  63  will press the switch  4 . As shown in  FIG. 8A  and  FIG. 8B , the electronic card tray  6  is inserted into the connector  5  after the first electronic card receiving recess  61   a  receives the first electronic card, at this time the second electronic card receiving recess  61   b  faces upward. When the operating handle  63  rotates toward the mounting block  62  and moves to the position of the switch  4 , the operating handle  63  will press the switch  4 . 
     Referring to  FIG. 2 , in an embodiment, the operating handle  63  may comprise a front end portion  637 , a first rear end portion (or first switch actuating member)  638  and a second rear end portion (or second switch actuating member)  639 . A front end surface  636  of the operating handle  63  is positioned on the front end portion  637 , the second switch actuating member  639  and part of the first switch actuating member  638  overlap in a vertical (or up-down) direction. After the operating handle  63  is engaged with the mounting block  62 , a part of the mounting block  62  is positioned between the first switch actuating member  638  and the second switch actuating member  639 . 
     Referring to  FIG. 2 , the mounting block  62  may be formed with a recessed groove  625 , after the operating handle  63  is engaged with the mounting block  62 , the second switch actuating member  639  may enter into the recessed groove  625 . The recessed groove  625  may be provided corresponding to the position of the switch  4 , so the switch  4  is not actuated before the operating handle  63  is engaged with the mounting block  62 ; and after the operating handle  63  is engaged with the mounting block  62 , the second switch actuating member  639  will press the switch  4  to actuate the switch  4 . On the other hand, when the electronic card tray  6  is turned over and mated with the connector  5 , the switch  4  is not actuated before the operating handle  63  is not engaged with the mounting block  62 . When the operating handle  63  is engaged with the mounting block  62 , the first switch actuating member  638  will press the switch  4  to actuate the switch  4 . Because the operating handle  63  has the first switch actuating member  638  and the second switch actuating member  639 , the electronic card tray  6  is inserted into connector whether the first electronic card receiving recess  61   a  or the second electronic card receiving recess  61   b  faces upward, the operating handle  63  can actuate the switch  4 . 
       FIG. 9A  is a schematic diagram of another embodiment of the present disclosure illustrating another switch  4 ′.  FIG. 9B  is an exploded view of the switch  4 ′ of  FIG. 9A .  FIG. 10A  is a schematic diagram of an embodiment of the present disclosure illustrating the switch  4 ′ and a connector  5  are mounted on the circuit board  3 .  FIG. 10B  is a cross-sectional view taken along a line  906 - 906  of  FIG. 10A . Referring to  FIG. 9A  and  FIG. 9B , the switch  4 ′ comprises a movable member  41 ′, a fixed member  42 ′ and an insulative body  43 ′. The movable member  41 ′ may contact or be moved away from the fixed member  42 ′. The insulative body  43 ′ electrically isolates the movable member  41 ′ and the fixed member  42 ′. In an embodiment, a combination of the movable member  41 ′, the fixed member  42 ′ and the insulative body  43 ′ may be integrally molded. In an embodiment, the fixed member  42 ′ comprises a clamp portion  422 , and the insulative body  43 ′ may be clamped on the clamp portion  422 . In an embodiment, the movable member  41 ′ may be partially embedded in the insulative body  43 ′. 
     As shown in  FIG. 9B , in an embodiment, the fixed member  42 ′ may comprise a contact point  421 . After a combination of the movable member  41 ′ and the insulative body  43 ′, and the fixed member  42 ′ are assembled together, the movable member  41 ′ may contact the contact point  421  of the fixed member  42 ′; but the present disclosure is not limited to this. 
     In an embodiment, the switch  4 ′ is a normally closed. In an embodiment, the switch  4 ′ is a normally open. 
     The operating handle  63  may be used for switching the switch  4 ′. As shown in  FIG. 10B , the movable member  41 ′ comprises a press portion  411 . After the switch  4 ′ is mounted, the press portion  411  may partially protrude into the rotation range  60  of the operating handle  63 , allowing the operating handle  63  to contact the press portion  411 . In an embodiment, when the electronic card tray  6  is inserted into the connector  5  and the operating handle  63  in not in contact with the press portion  411 , the press portion  411  is not pressed, at this time the switch  4 ′ is maintained in a normal state (a normally closed state or a normally open state, and the normally closed state is in the present embodiment). When the operating handle  63  is rotated through the press portion  411 , the operating handle  63  will press down on the press portion  411 , at this time the switch  4 ′ is actuated. 
       FIG. 11A  is a schematic diagram of an embodiment of the present disclosure illustrating a circuit board  3 , a connector  5 , an electronic card tray  6 ′ and a switch group  4 ″ of an electronic device  1 ′.  FIG. 11B  is another schematic diagram of an embodiment of the present disclosure, illustrating the circuit board  3 , the connector  5 , the electronic card tray  6 ′ and the switch group  4 ″ of the electronic device. Referring to  FIG. 11A  and  FIG. 11B , the electronic device  1 ′ comprises a circuit board  3 , a connector  5 , an electronic card tray  6 ′ and a switch group  4 ″. The connector  5  is provided on the circuit board  3 . The connector  5  comprises a mating space  51 . The electronic card tray  6 ′ may be inserted into the mating space  51 . The electronic card tray  6 ′ comprises an electronic card receiving recess  61   a , a mounting block  62  positioned in front of the electronic card receiving recess  61   a  and an operating handle  63 ′ pivotally connected to the mounting block  62 . The switch group  4 ″ can detect whether there is an electronic card on the inserted electronic card tray  6 ′, and can detect whether the electronic card tray  6 ′ is inserted into the connector  5 . 
     Referring to  FIG. 11B , in an embodiment, the operating handle  63  may be provided with a marking  634 , the marking  634  comprises a marking or indicating pattern, the marking  634  is used for indicating the pressed position when the operating handle  63  is rotated. 
       FIG. 12A  is a schematic diagram of an embodiment of the present disclosure illustrating a switch group  4 ″.  FIG. 12B  is another schematic diagram of the embodiment of the present disclosure illustrating the switch group  4 ″.  FIG. 12C  is an exploded schematic diagram of the embodiment of the present disclosure illustrating the switch group  4 ″. Referring to  FIGS. 12A-12C , the switch group  4 ″ comprises two movable members  41   a ,  41   b , a fixed member  42 ″ and an insulative body  43 ″. Each movable member  41   a  or  41   b  and the fixed member  42 ″ are combined into a switch ( 4   a  or  4   b ). Two movable members  41   a ,  41   b  and the fixed member  42 ″ and the insulative body  43 ″ may be integrally molded. The fixed member  42 ″ may comprise a clamp portion  422 , and the insulative body  43 ″ may be clamped on the clamp portion  422 . In an embodiment, the movable member  41   a  or  41   b  may be partially embedded in the insulative body  43 ″. In an embodiment, the insulative body  43 ″ comprises two separated insulating blocks. 
     As shown in  FIG. 12C , the fixed member  42 ″ may comprise two contact points  421 , if the switch ( 4   a  or  4   b ) is normally closed, the movable member  41   a  or  41   b  contact the corresponding contact point  421  respectively in the normal state; if the switch ( 4   a  or  4   b ) is normally open, the movable member  41   a ,  41   b  is separated from the corresponding contact point  421  in the normal state. 
     Referring to  FIGS. 11A and 12B , the movable member  41   a  or  41   b  comprises a press portion  411 . The press portion  411  may partially protrude into the rotation range  60  of the operating handle  63 ′. The press portion  411  of the movable member  41   a  is provided in front of the connector  5 , so the electronic card  8  will press the press portion  411  when the electronic card tray  6 ′ loaded with the electronic card  8  is inserted into the connector  5  to change the state of the switch  4   a . Thus, the electronic device  1 ′ can detect that the inserted electronic card tray  6 ′ is loaded with the electronic card. Furthermore, because the switch  4   a  is used for detecting whether the electronic card tray  6 ′ is loaded with the electronic card  8 , in order to avoid misjudgment, the electronic card tray  6 ′ itself is not in contact with the press portion  411  of the movable member  41   a ; that is when an empty electronic card tray  6 ′ is mated, the switch  4   a  is not actuated. 
     In addition, the press portion  411  of the movable member  41   b  is not provided in front of the connector  5 . The press portion  411  of the movable member  41   b  may be provided in front of and alongside the connector  5 , and provided at the position where the press portion  411  can be pressed after the operating handle  63 ′ is engaged with the mounting block  62 . Thus, the electronic device  1 ′ begins to supply power for the electronic card  8  or perform signal access by actuating the switch  4   b.    
     In an embodiment, the two switches  4   a ,  4   b  of the switch group  4 ″ are connected together. In another embodiment, the two switches  4   a ,  4   b  of the switch group  4 ″ are independently separated. 
     The electronic card tray  6  may be removed out of the connector  5  easily by steps of pushing, rotating, pulling the operating handle  63 . Referring to  FIG. 13A , the electronic card connection device  2  may be mounted in an electronic device  1 . The electronic device  1  may comprise a mobile device, such as a panel computer, a mobile phone or the like, but the present disclosure is not limited to this. The electronic device  1  may be not a mobile device. The electronic device  1  may comprise a circuit board  3  and a casing  11 . The connector  5  of the electronic card connection device  2  may be provided on the circuit board  3 . The casing  11  comprises an opening  111 , the opening  111  is communicated to the mating space  51  of the connector  5 , so the electronic card tray  6  may be inserted into the mating space  51  of the connector  5  via the opening  111 . The opening is configured to have a top side and a bottom side that are arranged along a vertical direction. The top side corresponds to an upward direction and the bottom side corresponds to a downward direction. 
     Referring to  FIG. 13A  and  FIG. 13B , the push portion  633  of the operating handle  63  is determined according to the marking  634  on the operating handle  63 . Next, the push portion  633  is pushed by use of any suitable object  7  (for example: a pen, a round bar, etc.), the operating handle  63  is unlocked and rotated, an opposite end  635  of the push portion  633  on the operating handle  63  protrudes out from the casing  11  to facilitate user gripping. 
     Referring to  FIG. 13C , after the operating handle  63  is pushed, the operating handle  63  may be further rotated until the operating handle  63  is roughly parallel to a mating direction of the electronic card tray  6 . At this time the push portion  633  of the operating handle  63  is positioned alongside the connector  5 . 
     Referring to  FIG. 13D , then, the user may grip the operating handle  63  to pull the electronic card tray  6  out of the connector  5 . 
     Referring to  FIG. 13E , next, the electronic card tray  6  is turned over to allow the electronic card  8  positioned below to face upward, so the electronic card  8  may be removed out of the electronic card tray  6 . 
     In an embodiment, the steps for mounting the electronic card  8  are firstly mounting the electronic card  8  on the electronic card tray  6 . Next, the electronic card tray  6  is turned over to allow the electronic card  8  to face downward to facilitate electrically connecting the terminal of the connector  5  positioned below. Then, the operating handle  63  is gripped and the electronic card tray  6  is inserted into the connector  5  via the opening  111  of the casing  11  until the electronic card tray  6  is fully inserted. Next, the operating handle  63  is pressed, and the operating handle  63  is rotated until the locking portion  632  of the operating handle  63  is engaged. 
     In an embodiment, the electronic card tray  6  is removed out of the connector  5  by pushing, rotating, pulling the operating handle  63 , therefore, the electronic card connection device  2  does not have to provide a card ejecting mechanism, the electronic card connection device  2  has low cost. In an embodiment, because the push portion  633  is positioned in front of the electronic card tray  6  and has a large range of surface which may allow an easily accessible object such as a pen, a bar or a rod to press, without using a special card ejecting pin, therefore, the electronic card connection device  2  is very convenient in use. 
     Referring to  FIG. 13A , in an embodiment, after the electronic card tray  6  is inserted into connector  5  and the operating handle  63  is engaged with the mounting block  62 , the front end surface  636  of the operating handle  63  of the electronic card tray  6  and the casing surface  1111  near the opening  111  of the casing  11  constitute a continuous surface, thus the appearance of the electronic device  1  is smooth and continuous. 
     Referring to  FIG. 5A , in an embodiment, after the operating handle  63  is engaged with the mounting block  62 , the push portion  633  protrudes out from the mounting block  62  along a transverse direction (transverse to a mating direction of the electronic card tray), so the operating handle  63  may be unlocked and pushed easily. 
     Referring to  FIG. 1  and  FIG. 2 , the electronic card tray  6  comprises an insulative frame body  64  and a metal bottom plate  65 . A combination of the insulative frame body  64  and the metal bottom plate  65  may be integrally injection molded. The insulative frame body  64  may comprise a peripheral wall  641 , and the peripheral wall  641  and the metal bottom plate  65  define an electronic card receiving recess  61   a  or  61   b . In an embodiment, the peripheral wall  641  and the metal bottom plate  65  define two electronic card receiving recesses  61   a ,  61   b . The insulative frame body  64  may also comprise a part which is positioned in front of the electronic card receiving recess  61   a  or  61   b , and partially constitutes the mounting block  62 . In an embodiment, the peripheral wall  641  may be continuous. In an embodiment, the peripheral wall  641  may be not continuous. 
     Referring to  FIG. 3  and  FIG. 4 , in some embodiments, the metal bottom plate  65  comprises a pivot hole  621 . In some embodiments, the metal bottom plate  65  comprises a mounting hole  622 . In some embodiments, the metal bottom plate  65  comprises a resilient protruding portion  624 . In some embodiments, the metal bottom plate  65  comprises a retaining piece  623 . 
       FIG. 14  is a schematic diagram of an embodiment of the present disclosure illustrating an electronic card connection device. Referring to  FIG. 14 , the electronic card tray  6  comprises an abutting block  66 . The abutting block  66  is used for fixing the electronic card mounted on the electronic card tray  6 , so the electronic card is not easily disengaged. The abutting block  66  may be provided corresponding to the electronic card receiving recess  61   a  or  61   b . The abutting block  66  may partially protrude into the corresponding electronic card receiving recess  61   a  or  61   b . The abutting block  66  has resiliency. In an embodiment, the abutting block  66  comprises a rubber. Because the abutting block  66  can secure the electronic card, the electronic card is not displaced after mounted on the electronic card receiving recess  61   a  or  61   b.    
     Referring to  FIG. 3  and  FIG. 4 , in an embodiment, the abutting block  66  comprises two recessed grooves  661  which are provided oppositely, the electronic card tray  6  has two corresponding protruding portions  642 . After the abutting block  66  is mounted on the electronic card tray  6 , each protruding portion  642  is engaged with the corresponding recessed groove  661  to fix the abutting block  66  or ensure a distance for which the abutting block  66  protrudes out from the corresponding electronic card receiving recess  61   a  or  61   b.    
     Referring to  FIG. 3  and  FIG. 4 , in an embodiment, the electronic card tray  6  comprises a metal bottom plate  65 , the metal bottom plate  65  comprises a receiving channel  651 . The receiving channel  651  is provided corresponding to the abutting block  66 . The abutting block  66  may be mounted in the corresponding receiving channel  651 . In an embodiment, the receiving channel  651  may clamp the corresponding abutting block  66 . 
       FIG. 15  is a schematic diagram of an embodiment of the present disclosure illustrating a connector  5 . As shown in  FIG. 15 , the connector  5  comprises a terminal housing  52  and a shell  53 . Each side edge of the terminal housing  52  comprises a first latch portion  521 , and each side edge of the shell  53  comprises a corresponding second latch portion  531 , each first latch portion  521  and the corresponding second latch portion  531  may be engage each other with a clearance fit. The terminal housing  52  may rotate at an engagement position of the first latch portion  521  and the second latch portion  531  relative to the shell  53 . Because the first latch portion  521  and the second latch portion  531  are engaged in clearance fit, and the connector  5  is mounted on the circuit board  3 , the shell  53  and the terminal housing  52  are not restricted mutually but can be adjusted separately, so the coplanarity between the soldering part of the shell  53  and the soldering part of the terminal housing  52  on the circuit board can be ensured. 
     In an embodiment, the first latch portion  521  comprises a protrusion, and the second latch portion  531  comprises a latch frame. In another embodiment, the first latch portion  521  comprises a latch frame, and the second latch portion  531  comprises a protrusion. In an embodiment, the protrusion engaging the latch frame is a hook. 
     Referring to  FIG. 15 , each side edge of the terminal housing  52  may comprise a first limiting portion  522 , and each side edge of the shell  53  may comprise a corresponding second limiting portion  532 , the first limiting portion  522  and the second limiting portion  532  engage each other with a clearance fit, and a limiting mechanism constituted by first limiting portion  522  and the second limiting portion  532  can limit rotation of the terminal housing  52  relative to the shell  53 . 
     In an embodiment, the first limiting portion  522  comprises a protrusion, and the second limiting portion  532  comprises a latch frame. In an embodiment, the first limiting portion  522  comprises a latch frame, and the second limiting portion  532  comprises a protrusion. In an embodiment, the protrusion engaging the latch frame is a hook. 
     Referring to  FIG. 15 , the terminal housing  52  comprises a metal frame body  523 , an insulative body  524  and a plurality of terminals  525 , and the metal frame body  523  is embedded in and fixed to the insulative body  524 , the plurality of terminals  525  are embedded in and fixed to the insulative body  524 . 
       FIG. 16  is a schematic diagram of an embodiment of the present disclosure illustrating a support element  533  of the shell  53  of the connector  5 . Referring to  FIG. 11B  and  FIG. 16 , the shell  53  comprises a support element  533  which partially extends obliquely upward along the mating direction of the electronic card tray  6 . The support element  533  is positioned in the mating space  51  of the connector  5 , and comprises a guide portion  5331  extending obliquely upward along the mating direction of the electronic card tray  6  and a support portion  5332  capable of supporting the electronic card tray  6 . When the electronic card tray  6  is inserted into the connector  5 , the electronic card tray  6  will be moved upwardly to a sufficient height by the support element  533 , so the electronic card tray  6  is not in contact with the terminal  525  of the connector  5   a  avoiding damage to the terminal  525  caused by the contact. In an embodiment, the support element  533  is positioned near the middle position of the side edge of the shell  53  in the mating direction. In an embodiment, the support element  533  is positioned between the two terminal housings  52 . 
     Referring to  FIG. 2 , an end portion of the electronic card tray  6  has a transverse cutout  68  opposite to the operating handle  63  or the mounting block  62 , the transverse cutout  68  may be provided for cooperating with the support element  533  to avoid the terminal  525  of the connector  5  when the empty electronic card tray  6  is inserted, and avoid contact of the terminal  525 . 
     Referring to  FIG. 14 , the connector  5  comprises a latching portion  54  protruding toward the mating space  51 , and the electronic card tray  6  correspondingly comprises a protruding block  67 . The protruding block  67  may protrude laterally from the electronic card tray  6 , protrude out from a corresponding side wall surface of the insulative frame body  64 , and may be latched with the corresponding latching portion  54  of the connector  5  after the electronic card tray  6  is inserted into the connector  5 , thereby increasing the retention force and durability of the electronic card tray  6  in the connector  5 . In an embodiment, the latching portion  54  is formed on the terminal housing  52 . In an embodiment, the latching portion  54  is formed on the shell  53  of the connector  5 . In an embodiment, the latching portion  54  may be a protrusion formed by protruding but not breaking a part of the side edge of the terminal housing  52  or shell  53  by punching. In an embodiment, the latching portion  54  may comprise a protrusion on the elastic piece having a free end. 
     Referring to  FIG. 4 , in an embodiment, the metal bottom plate  65  comprises a protruding block  67 . In an embodiment, the protruding block  67  has a curved edge. 
     In some embodiments of the present disclosure, a front end of the electronic card tray is provided with a pivotable operating portion. The electronic card tray mates with the connector and the power supply and signal transmission of the connector may be controlled by a switch. The switch is actuated using the operating portion, and is not actuated using the moving electronic card tray ensuring switching integrity of the power or signal, and avoid damage to the electronic device and the electronic card or the stored data caused by inappropriate switching of the switch. 
     In some embodiments, both sides of the electronic card tray may be fitted with different electronic cards. The electronic card tray may be inserted into the connector by reversible rotation on both sides, and the switch may be actuated using the operating portion in these two mating ways. In other words, the electronic card tray has a first side and an opposing second side, and in one instance the electronic card tray is inserted into the connector with the first side facing upwards and in another instance the electronic card tray is inserted with the opposing side facing upwards. 
     In some embodiments of the present disclosure, the front end of the electronic card tray is provided with a pivotable operating portion. The operating portion may be pushed to rotate and protrude out forward partially from the electronic device, so that the user can easily grip and pull out the electronic card tray. The operating portion may replace a complicated card ejecting mechanism reducing the cost of the connector. 
     Furthermore, because the operating portion is positioned at the front end of the electronic card tray, the user does not need to prepare a special card ejecting pin, and the electronic card is ejected only using a common pen or round bar, therefore, the electronic card tray in some embodiments of the present disclosure is very convenient in use. 
     In addition, in some embodiments of the present disclosure, the electronic card tray may be loaded with the electronic cards having different sizes on both sides, therefore, the electronic card tray in some embodiments of the present disclosure is widely used. 
     In some embodiments of the present disclosure, the operating portion of the electronic card tray is pivotally connected to the mounting block of the electronic card tray, the operating portion is provided with a locking portion to lock the operating portion on the mounting block to fix the operating portion. 
     In some embodiments of the present disclosure, the electronic card tray can secure the electronic card avoiding damage to the electronic card data or the electronic device circuit caused by untimely power off or power supply in the inserting and pulling process. 
     In some embodiments of the present disclosure, the connector and the electronic card tray may be engaged with each other, thereby increasing retention force and durability of the electronic card tray in the connector. 
     In some embodiments of the present disclosure, the connector can support and lift the electronic card tray and avoid contact between the terminal of the connector and the empty electronic card tray. 
     In the embodiments of the present disclosure, directions or moving directions such as up, down, left, right, front, rear and others, used to explain the structures or components, are not absolute, but relative. The adopted directions are appropriate when the disclosed components are in the same orientation in the embodiments shown in the Figures. However, if positions or reference coordinates of the disclosed embodiments change, the adopted directions change when the positions or reference coordinates in the embodiments change. 
     Technical contents and technical features of the present disclosure are disclosed as above, but person skilled in the art still can make various substitutions and modifications without departing from the technology spirit of the present disclosure based on the content and disclosure of the present disclosure. Therefore, the protection scope of the present disclosure should not be limited to the contents disclosed by the embodiments, but should include various substitutions and modifications disclosed without departing the present disclosure, and is included by the Claims of the present disclosure.