CN106961030A - Deck and terminal equipment - Google Patents

Abstract

The invention discloses a card holder, which comprises a card holder body, wherein the card holder body comprises a first terminal group, a second terminal group and a third terminal group, the second terminal group is positioned between the first terminal group and the third terminal group, the contact ends of all terminals in the first terminal group are positioned on a first plane, the contact ends of all terminals in the second terminal group are positioned on a second plane, the contact ends of all terminals in the third terminal group are positioned on the third plane, the first plane and the second plane are protruded out of the third plane along the thickness direction of the card holder body, each terminal in the first terminal group is used for contacting with the output end of a finger in a first card, each terminal in the second terminal group is used for contacting with a contact point of the finger in a second card, each terminal in the third terminal group is used for contacting with a contact point of the finger in the third card, the upper surface of the first card and the upper surface of the second card are positioned in the same plane, the second card and the third card are partially stacked along the thickness direction of the card seat body.

Description

Deck and terminal equipment

technical field

The invention relates to the technical field of signal card connection, in particular to a card holder and a terminal device.

Background technique

A card socket for holding a chip card or a memory card is usually arranged on a circuit board in a terminal device, and the chip card or memory card held in the socket can be connected to the circuit board. At present, two cards can usually be installed in the card holder of a terminal device to realize dual-card dual-standby or the integration of a Subscriber Identity Module (Subscriber Identity Module, SIM) card and a memory card. It can accommodate two cards, so if you need to store three cards in the same terminal device, you need to set up two card holders in the terminal device. Compared with a terminal device with only one card holder, set up two card holders It will increase the occupied area of the deck on the circuit board.

Contents of the invention

An embodiment of the present invention provides a card holder, which includes a card holder body, the card holder body includes a first terminal group, a second terminal group and a third terminal group, the second terminal group is located in the first terminal group Between the third terminal group, the contact ends of all the terminals of the first terminal group are located on the first plane, the contact ends of all the terminals of the second terminal group are located on the second plane, and the second The contact ends of all the terminals in the terminal group are located on the third plane, along the thickness direction of the cartridge body, the first plane and the second plane protrude from the third plane, and the first plane and the second plane are parallel to the third plane;

The contact end of each terminal in the first terminal group is used to contact the output end of the gold finger in the first card, and the contact end of each terminal in the second terminal group is used to contact the output end of the gold finger in the second card. The contact points of the gold fingers are in contact, the contact end of each terminal in the third terminal group is used to contact the contact points of the gold fingers in the third card, and the upper surface of the first card is in contact with the The upper surface of the second card is located in the same plane, wherein, the upper surface of the first card refers to the surface of the first card away from the card holder body, and the upper surface of the second card refers to the surface of the first card. Two cards are away from the surface of the card holder body;

The second card and the third card are stacked along the thickness direction of the card holder body, and the surface of the second card facing the third card includes a second area and a third area, and the second area The contact point of the golden finger in the second card is located in the second area, which is closer to the first card than the third area; The projection of the upper surface of the second card is at least partially coincident with the projection of the third card on the upper surface of the second card. The card holder described in this application sets the three sets of terminal groups at different heights, so that when the card is placed, the parts without gold fingers are overlapped, and the area of the single board where the card holder is applied is reduced.

Wherein, it also includes a card holder, the card holder includes a first area and a second area adjacent to the first area, the first area includes a first card slot, and the first card slot is used for holding For the first card, the second area includes a second card slot and a third card slot, the second card slot is used to hold the second card, and the third card slot is far away from the first card The slot is used to hold the third card;

The projection of the third card slot in the third plane along the thickness direction of the card tray at least partially overlaps with the projection of the second card slot in the third plane, along the card tray In the thickness direction of the first card slot, the bottom wall of the first card slot, the bottom wall of the second card slot protrudes from the bottom of the third card slot, or the bottom wall of the third card slot protrudes The bottom wall of the first card slot and the bottom wall of the second card slot; and the bottom wall of the first card slot, the bottom wall of the second card slot and the bottom wall of the third card slot Parallel to each other, when the card tray carrying the card is inserted, the card can be in good contact with the corresponding terminal group, and it will not be unable to insert due to insufficient thickness and space, or another separate card cannot be inserted due to the insertion of the overlapped part of the card. The terminal set touches the wall.

Wherein, the bottom wall of the first card slot and the bottom wall of the second card slot are on the same plane, and when the thickness of the first card is the same as that of the second card, the If the first plane and the second plane are located on the same plane, the thickness of the deck loaded with cards is uniform, so as to prevent the deck from occupying too much space.

Wherein, the card tray further includes a limiter, the limiter is movably arranged in the groove side wall of the third card slot, and is used for limiting the second card and locking the third card, Prevent the second card and the third card from falling off during assembly or loosening during use.

Wherein, two opposite groove side walls of the third card slot are provided with recesses, the limiting member includes a first elastic arm and a second elastic arm, and the first elastic arm is arranged in one of the recesses Inside, the second elastic arm is disposed in the other recess, and both the first elastic arm and the second elastic arm are used to elastically press the third card and clamp the second card.

Wherein, the two opposite groove side walls of the third card slot are provided with concave parts, and each of the concave parts is provided with one of the limiting parts, and the limiting parts include a rotating shaft and a pressure block rotatably mounted on the rotating shaft, The pressing block rotates against the third card and clamps the second card. The limiting part is arranged in the concave part, which will not increase the area of the card holder.

Wherein, two opposite guide slide rails are provided on the card base body, and the card holder is provided with a sliding platform relative to the guide slide rails, and the card holder is slidingly matched with the guide slide rails through the slide platform. , so as to put the first card, the second card and the third card into the card holder body; the card tray includes a first surface and a second surface opposite to the first surface , the notch direction of the first card slot, the second card slot and the third card slot is in the same direction as the first surface, when the bottom wall of the second card slot is recessed in the bottom of the third card slot When the wall is used, the two slides of the card holder are arranged on both sides of the first surface; or, when the bottom wall of the second card slot protrudes from the bottom wall of the third card slot, the card holder The two sliding platforms are arranged on both sides of the second surface.

Wherein, the second card slot includes the bottom wall of the slot and the side walls of the slot on opposite sides of the bottom wall of the slot, the bottom wall of the third slot and the side walls of the slot are formed by the slots of the second slot. The side wall is cut in the direction of the bottom wall of the second card slot, and the length direction of the second card slot is the same as the width direction of the third card slot, and the length of the second card slot is greater than the length of the second card slot. The width value of the third card slot; the third card slot is located at the end of the second card slot away from the first card slot.

Wherein, the distance between the second plane and the third plane is equal to the thickness of the second card, so that the space for loading into the card holder body is compact.

Wherein, the card holder further includes a detection switch, and the detection switch is used to control the Simultaneous energization of the first terminal group, the second terminal group and the third terminal group. Prevent the first incoming card from touching the terminal group when the card holder drives the card into the card holder.

In the second aspect, the present application provides a terminal device, including a circuit board and the card holder, the card holder is installed on the circuit board, the first terminal group, the second terminal group and the first terminal group All three terminal groups are electrically connected with the circuit board.

By implementing the card holder described in the embodiment of the present invention, the three sets of terminal groups are set at different heights, so that when the card is placed, the parts without gold fingers are overlapped, saving space, and reducing the area occupied by the single board where the card holder is used.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the background technology, the following will describe the drawings that need to be used in the embodiments of the present invention or the background technology.

Fig. 1 is an exploded schematic view of the deck structure provided by the embodiment of the present invention, in which the first, second and third cards are included;

Fig. 2 is a schematic diagram of the structure of the deck body of the deck shown in Fig. 1;

Fig. 3 is a schematic diagram of the structure of the card holder shown in Fig. 1, wherein first, second and third cards are installed;

Fig. 4 is the structural representation of the card support shown in Fig. 3;

Fig. 5 is a schematic structural view of another embodiment of the card tray shown in Fig. 1;

Fig. 6 is another perspective schematic view of the card holder shown in Fig. 5;

7 and 8 are schematic diagrams of the second card and the first card loaded on the card tray shown in FIG. 5;

FIG. 9 is a schematic diagram of another embodiment of the limiting member of the card tray shown in FIG. 5 .

detailed description

Embodiments of the present invention will be described below with reference to the drawings in the embodiments of the present invention.

Please refer to FIG. 1 , which is an exploded diagram of a card holder for a terminal device provided by an embodiment of the present application, which includes a first card 21 , a second card 22 and a third card 23 . The terminal device includes a circuit board (not shown), and the card holder is arranged on the circuit board for accommodating cards such as the first card 21, the second card 22 and the third card 23, and the cards pass through The socket is electrically connected with the circuit board.

As shown in Figure 2, the card holder 10, in this embodiment, the card holder includes a card holder body 10, and the card holder body 10 includes a first terminal group 14, a second terminal group 15 and a third terminal group 16 , the second terminal group 15 is located between the first terminal group 14 and the third terminal group 16, the contact ends of all the terminals 141 of the first terminal group 14 are located on the first plane, and the second The contact ends of all the terminals 151 of the second terminal group 15 are located on the second plane, and the contact ends of all the terminals 161 in the third terminal group 16 are located on the third plane, along the thickness direction of the cartridge body 10, the Both the first plane and the second plane protrude from the third plane, and both the first plane and the second plane are parallel to the third plane.

The contact end of each terminal 141 in the first terminal group 14 is used to contact the output end of the golden finger in the first card 21, and the contact end of each terminal 151 in the second terminal group 15 is used for In contact with the contact point of the gold finger in the second card 22, the contact end of each terminal 161 in the third terminal group 16 is used to contact the contact point of the gold finger in the third card 23, and the The upper surface 211 of the first card 21 and the upper surface 222 of the second card 22 are located in the same plane, wherein the upper surface of the first card 21 means that the first card 21 is far away from the card holder body 10 The upper surface 221 of the second card 22 refers to the surface of the second card 22 away from the card holder body 10 .

The second card 22 and the third card 23 are stacked along the thickness direction of the card holder body 10, and the surface of the second card 22 facing the third card 23 includes a second area and a third area, The second area is closer to the first card 21 than the third area, and the contact point of the golden finger in the second card 22 is located in the second area; the third area is along the card seat. The projection of the thickness direction of the main body 10 on the upper surface 221 of the second card 22 and the projection of the third card 23 on the upper surface 221 of the second card 22 are at least partially coincident.

Specifically, the first card 21 can be a standard SIM card, or a Micro sim card or a Nano sim card, the third card 23 is a SIM card, and the second card 22 can be an SD card (Secure Digital Card, memory card) , and the size of the SIM card and SD card are different. The card holder body 10 is a rectangular board, which includes a surface 13 , a first end 131 and a second end 132 opposite to the first end 131 . The first terminal group 14, the second terminal group 15 and the third terminal group 16 are arranged in sequence on the surface 13 from the first end 131 to the second end 132, and the first terminal group 14, the second The terminal group 15 is located at a first position 11 on the surface 13 , and the third terminal group 16 is located at a second position 12 ; the second position 12 is lower than the first position 11 . The first card 21, the second card 22 and the third card 23 are mounted on the card holder body 10, and the first card 21 is placed in a position corresponding to the first terminal group 14; the second card 22 and the third card 23 respectively correspond to The second terminal group 15 and the third terminal group 16 are placed, and the second card 22 and the third card 23 are partially overlapped, as long as the overlapping parts do not cover each other's golden fingers.

In this embodiment, the card base further includes a card holder 30, as shown in FIG. The first area 303 and the second area 304 adjacent to the first area 303, the first area 303 includes a first card slot 31, and the first card slot 31 is used to hold the first card 21 , the second area 304 includes a second card slot 32 and a third card slot 33, the second card slot 32 is used to hold the second card 22, and the third card slot 33 is away from the first The card slot 31 is used to hold the third card 33 .

What Fig. 4 shows is the schematic diagram of removing the card of the card holder shown in Fig. 3, the projection of the third card slot 33 in the third plane along the thickness direction of the card holder 30 is the same as that of the second card The projections of the grooves 32 in said third plane at least partially overlap. Along the thickness direction of the card holder 30 , the bottom wall 312 of the first card slot 31 and the bottom wall 321 of the second card slot 32 protrude from the bottom wall of the third card slot 33 ; Alternatively, the groove bottom wall of the third locking groove 33 protrudes from the groove bottom wall 312 of the first locking groove 31 and the groove bottom wall 321 of the second locking groove 32 . The groove bottom wall 312 of the first locking groove 31 , the groove bottom wall 321 of the second locking groove 32 and the groove bottom wall of the third locking groove 33 are parallel to each other. It can be understood that the third card slot 33 and the second card slot 32 have a common part, which can save the area of the card tray, and there is enough space for the stacked second card and the third card.

Further, the groove bottom wall of the third locking groove 33 protrudes from the groove bottom wall 312 of the first locking groove 31 and the groove bottom wall 321 of the second locking groove 32 . The slot bottom wall 312 of the first card slot 31 and the slot bottom wall 321 of the second card slot 32 are located on the same plane, and the thickness of the first card 21 is the same as that of the second card 22 In some cases, the first plane where the contact ends of all the terminals in the first terminal group 14 are located is located on the same plane as the second plane where the contact ends of all the terminals in the second terminal group 15 are located. In this way, the thickness of the deck loaded with cards is uniform, which prevents the deck from occupying too much space; The upper surfaces 222 of the two cards 22 are located in the same plane, and there is no need to provide additional non-planar avoidance space for the cards, which saves the space of the terminal equipment and simplifies the design.

In this embodiment, as shown in FIG. 4 , the second locking slot 32 includes slot side walls 322 located on opposite sides of the slot bottom wall 321 and end walls opposite to the two slot side walls 322 (the figure is labeled ). The bottom wall and the side wall of the third card slot 33 are formed by cutting the side wall 322 of the second card slot 32 toward the bottom wall 321 of the second card slot, and along the card slot In the length direction of the holder, the length direction of the second card slot 32 is the same as the width direction of the third card slot 33, and the length value of the second card slot 32 is greater than the width value of the third card slot 33; The third card slot 33 is located at an end of the second card slot 32 away from the first card slot 31 . Specifically, the ends of the two groove side walls 322 are formed with an open groove A communicating with the second locking groove 32, and the two opening grooves A form the second locking groove A that passes through the second locking groove 32 in the thickness direction. There are three card slots 33 , and the third card slot 33 is located at an end of the second card slot 32 away from the first card slot 31 .

Specifically, the card holder 30 is a rectangular plate body, and along the direction of inserting the card holder 30 into the card holder body 10, the first card slot 31 and the second card slot 32 are sequentially arranged on the card holder 30. Above, the end of the third card slot 33 away from the first card slot 31 is separated by part of the second card slot 32 . The orthographic projection of the groove sidewall in the width direction of the third locking groove 33 includes the orthographic projection of the groove sidewall 322 in the length direction of the second locking groove 32 . The second draw-in slot 32 is a rectangular through-slot, and the ends of its two longer slot sidewalls 322 are recessed toward the direction away from the second draw-in slot 32 to form an opening facing the second draw-in slot 32 and connected to the second draw-in slot. 32 open grooves A through. It can be understood that the third card slot straddles the second card slot 32 . The groove bottom wall of the third draw-in groove 33 is in the same direction as the groove bottom wall of the second draw-in groove 32, and the second draw-in groove 32 and the third draw-in groove 33 are substantially through grooves that pass through the card holder 30. The slot bottom wall of the card slot 33 and the slot bottom wall 321 of the second card slot 32 are not closed, but only carry the peripheral edge of the card so as to expose the golden finger of the card. The first card slot 31 and the second card slot The slot bottom wall of the card slot 32 is used to carry the corresponding first card 21 and the second card 22 , and the slot bottom wall of the third card slot 33 is used to carry the third card 23 .

The first card 21 is installed in the first card slot 31, the second card 22 is installed in the second card slot 32, and when the third card 23 is installed in the third card slot 33, the The third card 23 is stacked in the second card 22 and partially covers the second card 22 . The upper surface of the second card 22 faces away from the third card 23, and the surface of the second card 22 provided with the second area and the third area faces the third card 23, referring to Fig. 3, the third The area is attached to the third card 23, and the second area is provided with gold fingers of the second card. The surface of the third card 23 with gold fingers is away from the third area, and just exposes the gold fingers of the second card 22, so that it can be used once without increasing the area of the card holder 30. The gold fingers of the three cards are exposed at the same time, and the gold fingers of the three cards are not completely on the same plane, so that the card holder body and the first terminal group 14, the second terminal group 15 and the first terminal group 15 that are not completely on the same plane can be placed at the same time. The three terminal groups 16 are electrically connected.

Further, referring to FIG. 2 , the first end 131 of the card holder body 10 is an open end, which facilitates the insertion of the card tray 30 . Two opposite guide rails 18 are provided on the surface 13 of the card holder body 10 . The first terminal group 14 , the second terminal group 15 and the third terminal group 16 are located between two guide rails 18 . Referring to accompanying drawing 6, described card holder 30 is provided with slide table 35 relative to described guide slide rail 18, and described card holder slides with described guide slide rail 18 through described slide table 35, so that described first card 21. The second card 22 and the third card 23 are mounted on the card holder body 10 corresponding to the first terminal group 14 , the second terminal group 15 and the third terminal group 16 .

Specifically, the surface 13 of the card holder body 10 is a concave part between the two sides of the first terminal group 14, the second terminal group 15 and the third terminal group 16 and the guide rail 18, and the card The holder 30 carries the first card 21, the second card 22 and the third card 23 and slides them into the card holder body 10 from the opening end 131, and the first card 21 passes through the terminal group and the third terminal group in turn. 16. From the second terminal group 15 to the first terminal group 14, the golden finger of the second card 22 passes through the third terminal group 16 and contacts the second terminal group 15, because the height of the third terminal group 16 Below the second terminal group 15 to the first terminal group 14, the first card 21 and the second card 22 will not be in contact with them when they pass by, and the golden finger of the third card 23 is located on the card holder 30 When it is higher than other first cards 21 and second cards 22, the third card 23 and the third terminal group 16 are assembled to just complement the space at the lower position of the third terminal group 16, ensuring that all cards Tight fit with terminal set. It can be understood that any one or both of the first card 21 , the second card 22 and the third card 23 can be used in this card holder, and the simultaneous use of three cards is not limited. Furthermore, the card using the card holder of the present invention enters the card holder body through the insertion of the card holder 30. When installing three cards, the card holder is directly inserted into the card holder, which can ensure that the card and the terminal are matched. Accuracy, at the same time easier to pick and place replacement cards.

Further, the first card slot 31 and the second card slot 32 are both provided with notches 305 in the direction in which the card holder 30 is inserted into the card holder body 10, as shown in Figure 4, the card holder body 10 is provided with a second The first position from the second terminal group 15 to the first terminal group 14 protrudes from the recess of the surface 13, and the width of the gap 305 is equivalent to the width from the second terminal group 15 to the first terminal group 14. , when the card tray 30 is inserted into the card holder body 10 from the open end, the positions of the second terminal group 15 to the first terminal group 14 are inserted into the first card slot 21 and the second card slot through the opening 22. This structure can more stabilize the assembly of the card holder and the card holder, thereby ensuring the contact between the card and the terminal. At the same time, the sliding table 35 is slidably matched with the guide rail 18, and then the second terminal group 15 to the second terminal group A terminal group 14 is partially accommodated in the first slot 21 and the second slot 22 in terms of thickness, which saves space in terms of thickness; of course, the notch can be omitted, and the reduction of the overall thickness of the tray can also be achieved. Small thickness space.

Further, the card tray 30 includes a first surface 301 and a second surface 302 opposite to the first surface 301, the grooves of the first card slot 31, the second card slot 32 and the third card slot 33 are The direction of the opening is the same as that of the first surface 301. When the bottom wall of the second card slot 32 protrudes from the bottom wall of the third card slot 33, the two sliding platforms 35 of the card holder 30 are arranged on the Two sides of the first surface 301 . Specifically, firstly put the second card 22 into the second card slot 32 and then put the third card 23 into the third card slot 33, the first card 21, the second card 22 and the third card 23 The direction of the golden finger is the same as that of the first surface 301 . Since the two sliding platforms 35 of the card holder 30 are recessed on both sides of the first surface 301, the gold fingers of the first card 21, the second card 22, and the third card 23 are oriented in the same direction as the first surface 301. , and the slide table is also set on the first surface. When the card tray needs to be put into the card holder, the card holder needs to be turned upside down. In order to prevent the card from falling off, the terminal device carrying the card holder can be turned over Then insert the card holder, this structure can be pressed to the described card in the card holder through the card holder 30 . Of course, the position of the card holder in the terminal device can also be adjusted so that the slide table 35 of the card holder can be directly inserted when it is located on a horizontal plane.

In the card holder of the present invention, the three groups of terminal groups are set at different heights, so that when the card is placed, there are no golden fingers overlapped, which reduces the area of the single board used in the card holder, and when the card holder carrying the card is inserted, it can be Make the card in good contact with the corresponding terminal group, and it will not prevent another single card from being unable to contact the corresponding terminal group due to insufficient thickness space or insertion of the overlapped part of the card, and the gold fingers of the three cards are all The orientation is the same, and the external terminal group and the conductive wiring board are not needed, so the structure is simple.

Please refer to Fig. 5 and Fig. 6, in another embodiment of the present invention, different from the above-mentioned embodiment, when the groove bottom wall of the second card slot 32 is recessed in the groove bottom wall of the third card slot 33, the card The two sliding platforms 35 of the holder 30 are disposed on two sides of the second surface 302 . The groove bottom wall of the third locking groove 33 has the same direction as the groove bottom wall of the second locking groove 32 and is lower than the groove bottom wall of the second locking groove 32 . After the third card 23 is loaded into the third card slot 33 first, the second card 22 is put into the second card slot. When the card holder is inserted into the card holder, the card holder 30 part between the slide tables 35 sinks between the two guide rails of the card holder without turning over the card holder, and the card holder The holder is used to carry the three cards. This structure can more stabilize the assembly of the card holder and the card holder, thereby ensuring the contact between the card and the terminal. At the same time, the sliding table 35 is slidably matched with the guide rail 18 , and the second terminal group 15 to the first terminal group 14 are partially accommodated in the first card slot 21 and the second card slot 22 in the thickness direction, which saves space in terms of thickness.

Further, the card tray also includes a limiting member 38, which is movably arranged in the groove side wall of the third card slot 33, and is used for limiting the second card 22 and locking the second card. There are three cards 23, and the limiting member 38 is suitable for the above two implementations. The limiting member 38 can prevent the second card 22 and the third card 23 from falling off from the card tray 30 . And the first card 21 can be fixed by the frictional force with the first card slot. In this application, specific descriptions will be given on the above-mentioned second embodiment.

Please refer to FIG. 7 and FIG. 8 , further, recesses 332 are provided on two opposite side walls of the third locking slot 33 . In one embodiment, the limiting member 38 includes a first elastic arm 381 and a second elastic arm 382, and the first elastic arm 381 and the second elastic arm 382 are respectively arranged in the two recesses 332 for use in The third card 23 is elastically pressed, and the second card 22 is clamped. Specifically, the first elastic arm 381 and the second elastic arm 382 are strip-shaped elastic pieces, and the free ends of the elastic pieces can be compressed elastically. The heights of the first elastic arm 381 and the second elastic arm 382 in the recess are exactly The first card can be pressed and the second card can be clamped. The second elastic arm 382 includes two free ends. When the first card 21 is loaded into the third card slot 33, the first elastic arm 381 and the second elastic arm 382 are pushed away from the third card slot, and when the third card 23 is fully loaded into the third card slot, the first elastic arm 381 The second elastic arm 382 elastically recovers to press the third card 23 . Then insert the second card 22 , the first elastic arm 381 and the second elastic arm 382 just clamp the two sides of the second card 22 .

Please refer to FIG. 9. In another embodiment, the limiting member 38 includes a rotating shaft 383 and a pressing block 384 rotatably mounted on the rotating shaft 383. The pressing block 384 rotates against the third card 23 and clamps the third card 23. Describe the second card 22. The pressing block 384 can also be an elastic rubber piece.

Please refer to FIG. 1 again, further, the card holder also includes a detection switch, which is used to realize the first terminal group after the first, second and third cards are loaded into the card holder body 10 . , energization of the second terminal group and the third terminal group. Specifically, the detection switch includes a first contact piece 191 and a second contact piece 192, the first contact piece is arranged on the surface 13 of the card body and adjacent to the first terminal group, the The second contact piece is located at the second end position of the card holder body 10, the first contact piece and the second contact piece are normally disconnected, and when the card holder is fully loaded into the card holder, the Push the first contact piece 191 to contact with the second contact piece 192 to generate a signal, and the controller on the circuit board will detect the contact signal and click on the pre-stored information to make the first terminal group, the second terminal group, and the third terminal group The group is powered on. It can be understood that the first contact piece 191 and the second contact piece 192 are normally in contact, and when the card tray pushes the first contact piece 191 , the first contact piece 191 and the second contact piece 192 are disconnected to generate a signal.

Further, the card holder also includes a cover plate 25, which is detachably installed on the card holder and forms a receiving space with the card holder, and is used for accommodating and limiting the first card 21, The second card 22 and the third card 23 . The cover plate 25 is a cover-like structure, and it is installed on one side of the card seat through the rotation of the rotating shaft. When the cover plate 25 covers the card seat body 10, the cover plate 25 and the card seat body A storage space is formed between the surfaces 13 of 10, which is used to accommodate the first card 21, the second card 22 and the third card 23 or to accommodate the card tray 30 for carrying the first card 21, the second card 22 and the third card 23 .

In the third embodiment of the present invention, the card holder can directly limit the first card 21 , the second card 22 and the third card 23 through the shell of the terminal device or the battery. For example, install the card holder with the cover plate in the battery slot on the back of the terminal device, put the first card 21 into the position of the first terminal group 14, the second card 22 and the third card 23 respectively Corresponding to the second terminal group 15 and the third terminal group 16, and the second card 22 and the third card 23 are partially overlapped, then close the cover plate 25, three cards can be limited by the cover plate, the cover plate and the card It is partially contacted and insulated. Of course, the cover plate 25 can be omitted, and it is also possible to directly use the battery to limit the three cards, so there will be no problem that the two cards cannot be inserted into the card holder due to overlapping.

Claims (11)

1. A card holder, characterized in that it includes a card holder body, the card holder body includes a first terminal group, a second terminal group and a third terminal group, the second terminal group is located in the first terminal group Between the third terminal group, the contact ends of all terminals in the first terminal group are located on the first plane, the contact ends of all terminals in the second terminal group are located on the second plane, and the third The contact ends of all the terminals in the terminal group are located on the third plane, along the thickness direction of the cartridge body, the first plane and the second plane protrude from the third plane, and the first plane and the second plane are parallel to the third plane; The contact end of each terminal in the first terminal group is used to contact the output end of the gold finger in the first card, and the contact end of each terminal in the second terminal group is used to contact the output end of the gold finger in the second card. The contact points of the gold fingers are in contact, the contact end of each terminal in the third terminal group is used to contact the contact points of the gold fingers in the third card, and the upper surface of the first card is in contact with the The upper surface of the second card is located in the same plane, wherein, the upper surface of the first card refers to the surface of the first card away from the card holder body, and the upper surface of the second card refers to the surface of the first card. Two cards are away from the surface of the card holder body; The second card and the third card are stacked along the thickness direction of the card holder body, and the surface of the second card facing the third card includes a second area and a third area, and the second area The contact point of the golden finger in the second card is located in the second area, which is closer to the first card than the third area; The projection of the upper surface of the second card is at least partially coincident with the projection of the third card on the upper surface of the second card. 2. The card holder according to claim 1, further comprising a card holder, the card holder includes a first area and a second area adjacent to the first area, the first area includes A first card slot, the first card slot is used to hold the first card, the second area includes a second card slot and a third card slot, the second card slot is used to hold the first card two cards, the third card slot is away from the first card slot for holding the third card; The projection of the third card slot in the third plane along the thickness direction of the card tray at least partially overlaps with the projection of the second card slot in the third plane, along the card tray In the thickness direction of the first card slot, the bottom wall of the first card slot and the bottom wall of the second card slot protrude from the bottom of the third card slot, or the bottom wall of the third card slot protrudes out of the bottom wall of the first card slot and the bottom wall of the second card slot, and the bottom wall of the first card slot, the bottom wall of the second card slot and the third card slot The groove bottom walls of the card groove are parallel to each other. 3. The card holder according to claim 2, wherein the bottom wall of the first card slot and the bottom wall of the second card slot are located on the same plane, and are within the thickness of the first card When the thickness of the second card is the same, the first plane and the second plane are located on the same plane. 4. The card holder according to claim 2, characterized in that, the card holder further comprises a limiter, and the limiter is movably arranged in the groove side wall of the third card slot for limiting The second card locks the third card. 5. The card holder according to claim 4, wherein recesses are provided on two opposite side walls of the third card slot, and the limiting member includes a first elastic arm and a second elastic arm , the first elastic arm is disposed in one of the recesses, the second elastic arm is disposed in the other recess, and both the first elastic arm and the second elastic arm are used to elastically press The third card clamps the second card. 6. The card holder according to claim 4, characterized in that, two opposite groove side walls of the third card slot are provided with recesses, each of the recesses is provided with one of the stoppers, the The limiting member includes a rotating shaft and a pressing block rotatably mounted on the rotating shaft, and the pressing block rotates against the third card and clamps the second card. 7. The card holder according to any one of claims 2-6, wherein the card holder body is provided with two opposite guide rails, and the card holder is provided with slide rails relative to the guide rails. platform, the card holder is slidingly matched with the guide slide rail through the sliding platform, so as to load the first card, the second card and the third card into the card holder body; The card tray includes a first surface, a second surface opposite to the first surface, and the notch directions of the first card slot, the second card slot and the third card slot are in the same direction as the first surface. When the bottom wall of the second card slot protrudes from the bottom wall of the third card slot, the two sliding platforms of the card holder are arranged on both sides of the first surface; or, the bottom of the second card slot When the wall is recessed in the groove bottom wall of the third card groove, the two sliding platforms of the card holder are arranged on both sides of the second surface. 8. The card holder according to claim 2, wherein the second card slot includes the bottom wall of the slot and the side walls of the slot on opposite sides of the bottom wall of the slot, and the bottom of the third slot The wall and the side wall of the slot are formed by cutting the side wall of the second slot to the bottom wall of the second slot, and the length direction of the second slot is the same as the width of the third slot. The directions are the same, the length of the second card slot is greater than the width of the third card slot; the third card slot is located at an end of the second card slot away from the first card slot. 9. The card holder according to any one of claims 2-6, wherein the distance between the second plane and the third plane is equal to the thickness of the second card. 10. The deck according to any one of claims 1-9, characterized in that, the deck further comprises a detection switch, the detection switch is used to detect the first card, the second card And after the third card is loaded into the card holder body, the simultaneous power-on of the first terminal group, the second terminal group and the third terminal group is controlled. 11. A terminal device, characterized in that it comprises a circuit board and the socket according to any one of claims 1 to 10, the socket is installed on the circuit board, the first terminal group, the Both the second terminal group and the third terminal group are electrically connected to the circuit board.