Oblique insertion type two-out-of-three laminated card holder and card connector

Abstract

The oblique insertion type two-out-of-three laminated card holder comprises a card holder body, the front surface of the card holder body is provided with a first card slot for bearing an SD card and a second card slot for bearing a first SIM card, the back surface of the card holder body is provided with a third card slot for bearing a second SIM card, and the second card slot and the third card slot are transversely distributed; the first clamping grooves are vertically distributed and horizontally penetrate through the second clamping grooves; the middle layer of the card holder body is provided with a middle layer partition plate for isolating the front side card slot from the back side card slot; the second card slot and the third card slot are both arranged in a front-back inclined manner, and at least one side arm of the first card slot, the second card slot and the third card slot is provided with an elastic jacking arm for clamping a corresponding communication card. According to the utility model, each card can be effectively limited and clamped, and the position stability of the cards on the card support is guaranteed.

Description

[Technical field]

[0001] The utility model belongs to the technical field of card connectors, in particular to an oblique insertion type three-selection-two stacked card tray and a card connector. [Background technology]

[0002] Smartphones have become an important tool in people's daily life and work, and dual-SIM dual-standby function has become a standard feature of smart phones. Therefore, the card connector that carries the communication card on the mobile phone terminal also needs to be equipped with this function.

[0003] In the prior art, patent publication number CN208522731U discloses a three-choice-two double-layer card tray, the reverse side of which is used for placing a card slot for a Micro SIM card, and a buckle is provided above the periphery of the card slot to cooperate with a bearing plate extending horizontally from the card slot to realize position support and positioning of the Micro SIM card, and the Micro SIM card is pushed in from one side of the card slot. Therefore, the side is an open structure, and there is no positioning function for the corresponding side of the Micro SIM card. Only two dot-shaped bosses are used for positioning, and the positioning effect is limited. The card is easy to slip after being placed in the card slot.

[0004] Therefore, it is necessary to provide a new oblique insertion three-select-two stacked card tray and card connector to solve the above technical problems. [Contents of the utility model]

[0005] The main purpose of the utility model is to provide an oblique insertion type three-selection two-layer stacking card tray, which can effectively ensure that each card is effectively limited and clamped, and ensure the position stability of the card on the card tray.

[0006] The utility model achieves the above-mentioned purpose through the following technical scheme: an oblique insertion three-choice two-layer card tray, which includes a card tray body, a first card slot for carrying an SD card and a second card slot for carrying a first SIM card are arranged on the front side of the card tray body, and a third card slot for carrying a second SIM card is arranged on the back side, the second card slot and the third card slot are arranged horizontally; the first card slot is arranged vertically and horizontally penetrates the second card slot; a middle layer partition is arranged on the middle layer of the card tray body to separate the front card slot and the back card slot; the second card slot and the third card slot are both arranged to be tilted front and back, and at least one of the side arms of the first card slot, the second card slot and the third card slot is provided with an elastic top arm for clamping the corresponding communication card.

[0007] Furthermore, the SD card is a Micro SD card, and the first SIM card and the second SIM card are both NanoSIM cards.

[0008] Furthermore, the SD card is placed in the first card slot with the chip side facing downward, and a hollow notch is provided on the middle partition plate to expose the pin area on the SD card downward; the first SIM card is placed in the second card slot with the chip side facing upward, and the second SIM card is placed in the third card slot with the chip side facing downward.

[0009] Furthermore, the limiting beams around the card holder body form surrounding blocks around the first card slot, and the front side of the first card slot is provided with a first elastic push arm for supporting the front side of the SD card so that it is clamped in the first card slot from front to back.

[0010] Furthermore, the left and right limiting beams of the card holder body constitute the front and rear side enclosures of the second card slot; the left limiting beam of the card holder body is provided with a second elastic supporting arm for supporting the front short side of the first SIM card so that it is clamped in the second card slot from front to back.

[0011] Furthermore, the left and right limiting beams and the front limiting beam of the card holder body respectively constitute the front and rear side enclosures and the left side enclosure of the third card slot, the card holder body is provided with a right side limiting beam constituting the right side enclosure of the third card slot, and the left side enclosure of the third card slot is provided with a third elastic lifting arm for supporting the left side edge of the second SIM card so that it is clamped on the left and right sides in the third card slot.

[0012] Furthermore, the second card slot and the third card slot are both arranged to avoid the hollow notch and are located in the front half area of ​​the card tray.

[0013] Another object of the utility model is to provide an oblique-insertion three-choice-two stacked card connector, which includes a card socket and a card tray as described above, wherein the card socket includes a lower connection module electrically connected to a PCB board and an upper connection module covering the lower connection module; an accommodating cavity for inserting the card tray is formed between the lower connection module and the upper connection module.

[0014] Furthermore, the lower connection module includes a first plastic terminal assembly connected to the electrical signal of the second SIM card and a second plastic terminal assembly arranged corresponding to the hollow notch and connected to the electrical signal of the SD card;

[0015] The second plastic terminal assembly includes a plastic frame, a plurality of first metal terminals embedded in the plastic frame, and a pair of reinforcing sheets; the number of the first metal terminals corresponds to the number of pins on the SD card;

[0016] The SD card is placed in the first card slot with the chip facing downward, and the middle partition is provided with a hollow notch exposing the pin area on the SD card downward;

[0017] The middle part of the first metal terminal is arched to form a contact protrusion that contacts the SD card, and its front and rear ends are buried in the front and rear frame bodies of the plastic frame; the contact protrusion is designed to be raised to pass through the height of the lower card slot of the card tray, and after passing through the hollow notch, it extends into the first card slot to contact the SD card.

[0018] Furthermore, the left and right side frame bodies of the plastic frame are designed to be higher and thicker; the two reinforcing plates are embedded in the left and right side frame bodies of the plastic frame; and the left and right side frame bodies are provided with grooves for the mold pressure rod to extend into to press the reinforcing plates during the injection molding process.

[0019] The utility model discloses an oblique insertion type three-select-two stacked card tray and a card connector, which has the beneficial effects of: by setting the second card slot and the third card slot for placing the SIM card on both sides of the card tray to be horizontally distributed at an oblique angle, sufficient plane space is reserved around the card slot to set the elastic top arm, and the elastic top arm is greatly improved by the position stability of each card in the corresponding card slot, and the problem that the card is easy to slip is effectively solved; the first card slot on the front side of the card tray is used to place the SD card, and the chip side of the SD card is placed in the first card slot facing down, and the middle layer of the card tray is provided with a middle layer partition, and the middle layer partition is provided with a hollow notch exposing the pin area of ​​the SD card, and the plastic terminal assembly in the lower layer connection module of the card holder is used to realize electrical signal connection with the SD card, so that the elastic height of the metal terminal in the plastic terminal assembly can be made higher, thereby improving the signal connection stability of the communication card.

Brief Description of the Drawings

[0020] Figure 1 This is a schematic diagram of the explosion structure of an embodiment of the utility model;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the front side of the card tray in the embodiment of the utility model;

[0022] Figure 3 This is a schematic diagram of the three-dimensional structure of the back side of the card holder in the embodiment of the utility model;

[0023] Figure 4-5 This is a schematic diagram of the front and back structures of the SD card and the second SIM card placed in the card tray in the embodiment of the utility model;

[0024] Figure 6-7 This is a schematic diagram of the front and back structures of the first SIM card and the second SIM card placed in the card tray in the embodiment of the utility model;

[0025] Figure 8 This is a schematic diagram of the bottom three-dimensional structure of the card holder in the embodiment of the utility model;

[0026] Fig. 9This is a schematic diagram of the three-dimensional structure of the second plastic terminal assembly in the embodiment of the utility model;

[0027] Fig.10 This is a schematic diagram of the exploded structure of the second plastic terminal assembly in the embodiment of the utility model;

[0028] The numbers in the figure represent:

[0029] 100-slant plug-in three-choice two-stack card connector;

[0030] 200-SD card; 300-first SIM card; 400-second SIM card;

[0031] 1-card holder, 11-first plastic terminal assembly, 12-second plastic terminal assembly, 121-plastic frame, 1211-groove, 122-first metal terminal, 1221-contact protrusion, 123-reinforcement sheet, 13-third plastic terminal assembly, 14-iron shell, 15-rivet, 16-rotating shaft, 17-pull rod, 18-switch terminal;

[0032] 2-card holder, 21-card holder body, 22-first card slot, 23-second card slot, 24-third card slot, 25-middle partition, 26-hollow notch, 27-first elastic top arm, 28-second elastic top arm, 29-right side limiting beam, 210-third elastic top arm, 211-locking card slot, 212-step structure. [Specific implementation method]

[0033] Embodiment 1:

[0034] Please refer to Figure 1-Figure 10 The present embodiment is an oblique insertion three-in-two stacked card connector 100 , which includes a card seat 1 and a card tray 2 .

[0035] The card tray 2 includes a card tray body 21. The front of the card tray body 21 is provided with a first card slot 22 for carrying an SD card 200 and a second card slot 23 for carrying a first SIM card 300, and the back is provided with a third card slot 24 for carrying a second SIM card 400. The SD card 200 in the first card slot 22 is distributed vertically, and the first SIM card 300 in the second card slot 23 and the second SIM card 400 in the third card slot 24 are distributed horizontally; the first card slot 22 runs through the second card slot 23 horizontally and vertically.

[0036] The SD card 200 in this embodiment is a Micro SD card, and the first SIM card 300 and the second SIM card 400 are both NanoSIM cards.

[0037] In order to ensure that the bottom of the cards in the three card slots are sufficiently supported, on the one hand, the cards are kept within the set height range, and on the other hand, the chip surface of the card can reliably and effectively contact the card holder 1 to achieve electrical connection. The middle layer of the card holder body 21 is provided with a middle layer partition 25 that separates the front card slot from the back card slot.

[0038] In this embodiment, the SD card 200 is placed in the first card slot 22 with the chip facing downward, and a hollow notch 26 is provided on the middle partition 25 to expose the pin area on the SD card 200 downward, so that the SD card 200 can be electrically connected to the connection module at the lower layer of the card holder 1.

[0039] The first SIM card 300 is placed in the second card slot 23 with the chip facing upward, and the second SIM card 400 is placed in the third card slot 24 with the chip facing downward.

[0040] The limiting beams around the card holder body 21 form the surrounding blocks around the first card slot 22. In order to improve the position stability of the SD card 200 in the first card slot 22, the front side of the first card slot 22 is provided with a first elastic push arm 27 to support the front side of the SD card 200 so that it is clamped in the first card slot 22.

[0041] The left and right limiting beams of the card holder body 21 form the front and rear side enclosures of the second card slot 23. In order to improve the position stability of the first SIM card 300 in the second card slot 23 and meet the miniaturization design of the left and right width dimensions of the card holder, the second card slot 23 is arranged to be tilted front and back. At the same time, the left limiting beam of the card holder body 21 is provided with a second elastic force push arm 28 to support the front short side of the first SIM card 300 so that the front and rear (here, the front and rear sides of the first SIM card 300) are clamped in the second card slot 23.

[0042] The left and right limiting beams and the front limiting beam of the card holder body 21 respectively constitute the front and rear side enclosures and the left side enclosure of the third card slot 24. In order to improve the position stability of the second SIM card 400 in the third card slot 24 and meet the miniaturization design of the left and right width dimensions of the card holder, the third card slot 24 is arranged to be tilted forward and backward; the card holder body 21 is provided with a right limiting beam 29 constituting the right side enclosure of the third card slot 24, and the left side enclosure of the third card slot 24 is provided with a third elastic force push arm 210 to support the left side of the second SIM card 400 so that it is clamped in the third card slot 24 from left to right.

[0043] The explanation for "the second card slot 23 is arranged to be tilted front and back" and "the third card slot 24 is arranged to be tilted front and back" in this embodiment is as follows: In a conventional card tray structure, the card tray has a horizontal center line in the front and back width and a vertical center line in the left and right width, and the horizontal center line and the vertical center line are distributed orthogonally. The card slots on the card tray generally have two distribution forms: first, vertical distribution parallel to the vertical center line; second, horizontal distribution parallel to the horizontal center line; and the second card slot 23 in this embodiment is horizontally distributed at an angle to the horizontal center line. This setting method is called "arranged to be tilted front and back".

[0044] The second card slot 23 and the third card slot 24 are both arranged to avoid the hollow notch 26 and are located in the front half of the card tray 2 .

[0045] The second card slot 23 and the third card slot 24 both adopt the same technical means in improving the card position stability and meeting the miniaturization design of the left and right width dimensions of the card tray. Both of them distribute the card slots horizontally and set them in a front-to-back tilted manner, without widening the left and right width of the card tray 2, so that there is enough plane area on the left side limit beam of the front side of the card tray 2 to arrange the second elastic top arm 28, thereby enhancing the position stability of the first SIM card 300; similarly, there is enough plane area on the front side limit beam of the back side of the card tray 2 to arrange the third elastic top arm 210, thereby enhancing the position stability of the second SIM card 400.

[0046] The card holder body 21 is provided with locking slots 211 on the left and right sides.

[0047] The left and right sides or one of the left and right sides of the card holder body 21 are provided with a step structure 212 for preventing reverse insertion. In this embodiment, in order to reduce the overall space of the card connector and increase the available space of the whole machine, the step structure 212 for preventing reverse insertion is a single-sided design and is only provided on the right side.

[0048] During use, the user can selectively insert the SD card 200 only in the first card slot 22, or insert the first SIM card 300 only in the second card slot 23, or insert the second SIM card 400 only in the third card slot 24, or insert the SD card 200 in the first card slot 22 and the second SIM card 400 in the third card slot 24 at the same time, or insert the first SIM card 300 in the second card slot 23 and the second SIM card 400 in the third card slot 24 at the same time.

[0049] The card holder 1 includes a lower connection module (not shown in the figure) electrically connected to the PCB board and an upper connection module (not shown in the figure) covering the lower connection module; a receiving cavity (not shown in the figure) for inserting the card tray 2 is formed between the lower connection module and the upper connection module.

[0050] The lower connection module includes a first plastic terminal assembly 11 connected to the second SIM card 400 by electrical signals, and a second plastic terminal assembly 12 arranged corresponding to the hollow notch 26 and connected to the SD card 200 by electrical signals.

[0051] The first plastic terminal assembly 11 may adopt a conventional Nano SIM card plastic terminal assembly structure in the prior art.

[0052] The second plastic terminal assembly 12 includes a plastic frame 121, a plurality of first metal terminals 122 embedded and formed in the plastic frame 121, and a pair of reinforcing plates 123. The number of the first metal terminals 122 corresponds to the number of pins on the SD card 200. The middle part of the first metal terminal 122 is arched to form a contact protrusion 1221 that contacts the SD card 200, and its front and rear ends are both buried in the front and rear frame body of the plastic frame 121. The SD card 200 in this embodiment is set in the upper card slot of the card tray 2, so the contact protrusion 1221 is designed to be raised to pass through the height of the lower card slot of the card tray 2, and then pass through the hollow notch 26 to extend into the first card slot 22 to contact the SD card 200. Compared with the original structure, its elastic arm is designed to be raised and extended, which increases the elastic height of the first metal terminal 122, which is conducive to improving the contact stability with the SD card 200.

[0053] In order to protect the first metal terminal 122 during use or transportation, the left and right side frame bodies of the plastic frame 121 are designed to be higher and thicker, so that the height difference between the left and right side frame bodies and the height of the arched contact protrusion 1221 in the middle of the first metal terminal 122 is reduced.

[0054] Two reinforcing sheets 123 are embedded in the left and right frame bodies of the plastic frame 121. In order to ensure that the height position of the reinforcing sheets 123 in the left and right frame bodies meets the requirements and is completely embedded in the left and right frame bodies, grooves 1211 are provided on the left and right frame bodies, so that during injection molding, the mold pressure rod can be inserted into the groove 1211 to press the reinforcing sheets 123 to make it better molded.

[0055] The upper connection module includes a third plastic terminal assembly 13 connected to the electrical signal of the first SIM card 300, an iron shell 14 covering the outer periphery of the third plastic terminal assembly 13, a rivet 15 riveted through the third plastic terminal assembly 13 and the iron shell 14, a rotating shaft 16 rotatably set on the rivet 15, a pull rod 17 one end of which is clamped with the rotating shaft 16 and is movably set on the inner side of the iron shell 14, and a switch terminal 18 set in the third plastic terminal assembly 13.

[0056] The above are only some embodiments of the present invention. For those skilled in the art, several modifications and improvements can be made without departing from the inventive concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. An oblique insertion three-choice two-layer card tray, characterized in that: It includes a card tray body, the front side of the card tray body is provided with a first card slot for carrying an SD card and a second card slot for carrying a first SIM card, and the back side is provided with a third card slot for carrying a second SIM card, the second card slot and the third card slot are arranged horizontally; the first card slot is arranged vertically and horizontally penetrates the second card slot; the middle layer of the card tray body is provided with a middle layer partition for isolating the front card slot and the back card slot; the second card slot and the third card slot are both arranged to be tilted front and back, and at least one of the side arms of the first card slot, the second card slot and the third card slot is provided with an elastic top arm for clamping the corresponding communication card.

2. The oblique insertion type three-choice-two stacked card tray according to claim 1, characterized in that: The SD card is a Micro SD card, and the first SIM card and the second SIM card are both Nano SIM cards.

3. The oblique insertion type three-choice-two stacked card tray according to claim 1, characterized in that: The SD card is placed in the first card slot with the chip facing downward, and a hollow notch is provided on the middle partition plate to expose the pin area on the SD card downward; the first SIM card is placed in the second card slot with the chip facing upward, and the second SIM card is placed in the third card slot with the chip facing downward.

4. The oblique insertion type three-choice-two stacked card tray according to claim 1, characterized in that: The limiting beams around the card holder body form surrounding blocks around the first card slot, and the front side of the first card slot is provided with a first elastic push arm that supports the front side edge of the SD card to clamp it in the first card slot.

5. The oblique insertion type three-choice-two stacked card tray according to claim 1, characterized in that: The left and right limiting beams of the card holder body form the front and rear side enclosures of the second card slot; the left limiting beam of the card holder body is provided with a second elastic force support arm for supporting the front short side of the first SIM card so that it is clamped in the second card slot from front to back.

6. The oblique insertion type three-choice-two stacked card tray according to claim 1, characterized in that: The left and right limiting beams and the front limiting beam of the card holder body respectively constitute the front and rear side enclosures and the left side enclosure of the third card slot. The card holder body is provided with a right limiting cross beam constituting the right side enclosure of the third card slot. The left side enclosure of the third card slot is provided with a third elastic push arm for supporting the left side edge of the second SIM card so that it is clamped in the third card slot on the left and right.

7. The oblique insertion type three-choice-two stacked card tray as claimed in claim 3, characterized in that: The second card slot and the third card slot are both arranged to avoid the hollow notch and are located in the front half area of ​​the card tray.

8. An oblique insertion three-select-two stacked card connector, characterized in that: It includes the card tray and card socket as described in claim 1, the card socket includes a lower connection module electrically connected to a PCB board and an upper connection module covering the lower connection module; an accommodating cavity for inserting the card tray is formed between the lower connection module and the upper connection module.

9. The oblique insertion type three-in-two stacked card connector according to claim 8, characterized in that: The middle layer partition is provided with a hollow notch exposing the pin area on the SD card downward; the lower layer connection module comprises a first plastic terminal assembly connected to the electrical signal of the second SIM card and a second plastic terminal assembly arranged corresponding to the hollow notch and connected to the electrical signal of the SD card; The second plastic terminal assembly includes a plastic frame, a plurality of first metal terminals embedded in the plastic frame, and a pair of reinforcing sheets; the number of the first metal terminals corresponds to the number of pins on the SD card; The SD card is placed in the first card slot with the chip facing downward, and the middle partition is provided with a hollow notch exposing the pin area on the SD card downward; The middle part of the first metal terminal is arched to form a contact protrusion that contacts the SD card, and its front and rear ends are buried in the front and rear frame bodies of the plastic frame; the contact protrusion is designed to be raised to pass through the height of the lower card slot of the card tray, and after passing through the hollow notch, it extends into the first card slot to contact the SD card.

10. The oblique insertion type three-in-two stacked card connector according to claim 9, characterized in that: The left and right side frame bodies of the plastic frame are designed to be higher and thicker; the two reinforcing sheets are embedded and molded in the left and right side frame bodies of the plastic frame; and the left and right side frame bodies are provided with grooves for the mold pressure rod to extend into to press the reinforcing sheets during the injection molding process.

Images