Card reader device

Abstract

The embodiment of the utility model provides a card reader device, relates to the card reader technical field, the card reader device comprises a shell, a PCB, a first interface, a bridge piece, a second interface and a switch circuit, the PCB is arranged in the shell, the first interface is arranged at the outer side of the shell and is used for inserting a memory card, the bridge piece is arranged on the PCB and is connected with the first interface, and the second interface is connected with the switch circuit. The second interface is arranged on the outer side of the shell, the second interface is connected with the bridge piece and used for being connected with card reading terminal equipment, the switching circuit is arranged on the PCB and connected with the first interface, the bridge piece and the second interface, and when the second interface is connected with the card reading terminal equipment and a memory card is inserted into the first interface, the switching circuit is switched on. The switching circuit is used for transmitting the electric energy of the card reading terminal equipment to the memory card and the bridge piece, and when the card is not inserted, the switching circuit is in a closed state, so that the power consumption of the card reader can be reduced. A memory card is inserted into the first interface, the second interface is connected with card reading terminal equipment, and the switching circuit transmits electric energy of the card reading terminal equipment to the memory card and the bridge piece.

Description

Technical Field

[0001] The utility model relates to the technical field of card readers, in particular to a card reader device. Background Art

[0002] A data storage card is a flash memory-based storage device used to save data. A card reader is a device used to read and transfer data storage cards. When in use, insert the data storage card into the slot of the card reader and connect it to a computer or other data terminal.

[0003] When an existing card reader is connected to a computer or other data terminal, no matter whether a memory card is inserted in the card reader or not, the computer or other data terminal will continue to supply power to the bridge chip inside the card reader, and the card reader will always be in standby mode, which increases the power consumption of the card reader. Utility Model Content

[0004] The embodiment of the utility model provides a card reader device to solve the technical problem of high power consumption of the existing card reader in the related art.

[0005] In a first aspect, a card reader device is provided, comprising:

[0006] case;

[0007] A PCB board, which is arranged inside the housing;

[0008] A first interface, which is provided on the outer side of the housing and is used for inserting a memory card;

[0009] A bridge chip, which is disposed on the PCB board and connected to the first interface;

[0010] A second interface, which is arranged on the outside of the housing, the second interface is connected to the bridge piece, and the second interface is used to connect to a card reading terminal device;

[0011] A switch circuit is arranged on the PCB board, and the switch circuit is connected to the first interface, the bridge chip and the second interface. When the second interface is connected to the card reading terminal device and the memory card is inserted into the first interface, the switch circuit is used to transmit the electrical energy of the card reading terminal device to the memory card and the bridge chip.

[0012] In some embodiments, the switch circuit comprises:

[0013] An input end, the input end is connected to the first interface, and when the first interface is inserted into the memory card, the input end is at a low level;

[0014] a first resistor, wherein a first end of the first resistor is connected to the input end;

[0015] A switch tube, a first end of the switch tube is connected to the second end of the first resistor;

[0016] a second resistor, wherein a first end of the second resistor is connected to a power supply of the card reading terminal device, and a second end of the second resistor is connected to a first end of the switch tube;

[0017] a third resistor, wherein a first end of the third resistor is connected to the first end of the switch tube, and a second end of the third resistor is grounded;

[0018] A power management chip, wherein the enable end of the power management chip is connected to the third end of the switch tube, the power output end of the power management chip is connected to the connection between the bridge chip and the second interface, and the power input end of the power management chip is used to connect to the power supply of the card reading terminal device.

[0019] Some embodiments further include: a first thermal pad, wherein the first thermal pad is disposed between the first interface and the housing.

[0020] In some embodiments, the present invention further includes: a second thermally conductive pad, wherein the second thermally conductive pad is disposed between the PCB board and the housing.

[0021] In some embodiments, the invention further comprises: a magnet connected to the bottom of the shell.

[0022] In some embodiments, the first interface is a CFExpress interface.

[0023] In some embodiments, the second interface is a USB Type C interface.

[0024] In some embodiments, the shell includes: an upper cover and a lower cover, and the upper cover and the lower cover are detachably connected.

[0025] In some embodiments, the upper cover is provided with a plurality of strip-shaped grooves.

[0026] In some embodiments, a plurality of anti-slip strips are provided under the lower cover.

[0027] The beneficial effects brought by the technical solution provided by the utility model include:

[0028] The utility model embodiment provides a card reader device, the card reader device includes a shell, a PCB board, a first interface, a bridge, a second interface and a switch circuit, the PCB board is arranged inside the shell, the first interface is arranged outside the shell for inserting a memory card, the bridge is arranged on the PCB board and connected to the first interface, the second interface is arranged outside the shell, the second interface is connected to the bridge, the second interface is used to connect a card reader terminal device, the switch circuit is arranged on the PCB board, the switch circuit is connected to the first interface, the bridge and the second interface, when the second interface is connected to the card reader terminal device and the first interface is inserted into the memory card, the switch circuit is used to transmit the power of the card reader terminal device to the memory card and the bridge. The first interface of the utility model is inserted into the memory card, the second interface is connected to the card reader terminal device, the switch circuit transmits the power of the card reader terminal device to the memory card and the bridge, and the power consumption of the card reader is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0030] Figure 1 A first schematic diagram of a card reader device provided by an embodiment of the utility model;

[0031] Figure 2 A schematic diagram of a switch circuit provided by an embodiment of the utility model;

[0032] Figure 3 A second schematic diagram of a card reader device provided by an embodiment of the utility model;

[0033] Figure 4 A third schematic diagram of a card reader device provided by an embodiment of the utility model;

[0034] Reference numerals:

[0035] 1. Shell; 11. Upper cover; 111. Strip groove; 12. Lower cover; 121. Anti-slip strip;

[0036] 2. PCB board;

[0037] 3. The first interface;

[0038] 4. Bridge piece;

[0039] 5. Second interface;

[0040] 6. Switching circuit;

[0041] 7. The first thermal pad;

[0042] 8. Second thermal pad;

[0043] 9. Magnet. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0045] The embodiment of the utility model provides a card reader device, which can solve the technical problem of high power consumption of the card reader in the prior art.

[0046] See also Figure 1 As shown, a card reader device provided by an embodiment of the utility model comprises a housing 1, a PCB board 2, a first interface 3, a bridge 4, a second interface 5 and a switch circuit 6.

[0047] The PCB board 2 is arranged inside the housing 1, the first interface 3 is arranged outside the housing 1 and is used to insert a memory card, the bridge 4 is arranged on the PCB board 2 and connected to the first interface 3, the bridge 4 is used to convert USB4.0 signals to PCIE4.0 signals, the second interface 5 is arranged outside the housing 1, the second interface 5 is connected to the bridge 4, the second interface 5 is used to connect to a card reader terminal device, the switch circuit 6 is arranged on the PCB board 2, the switch circuit 6 is connected to the first interface 3, the bridge 4 and the second interface 5, when the second interface 5 is connected to the card reader terminal device and the first interface 3 is inserted with the memory card, the switch circuit 6 is used to transmit the power of the card reader terminal device to the memory card and the bridge 4. When the second interface 5 is not connected to the card reader terminal device, or the first interface 3 is not inserted with the memory card, the switch circuit 6 does not transmit the power of the card reader terminal device to the memory card and the bridge 4, thereby reducing the standby time of the card reader device and reducing the power consumption of the card reader device.

[0048] As an optional implementation, in a utility model embodiment, see Figure 1 and Figure 2As shown, the switch circuit 6 is provided with an input terminal CFE_INS, a first resistor R1, a switch tube Q1, a second resistor R2, a third resistor R3 and a power management chip U1, the input terminal CFE_INS is connected to the first interface 3, when the first interface 3 is inserted into the memory card, the input terminal CFE_INS is at a low level, when the first interface 3 is not inserted into the memory card, the input terminal CFE_INS is at a high level, the first end of the first resistor R1 is connected to the input terminal CFE_INS, the first end of the switch tube Q1 is connected to the second end of the first resistor R1, the The first end of the second resistor R2 is connected to the power supply of the card reading terminal device, the second end of the second resistor R2 is connected to the first end of the switch tube Q1, the first end of the third resistor R3 is connected to the first end of the switch tube Q1, the second end of the third resistor R3 is grounded, the enable end EN of the power management chip U1 is connected to the third end of the switch tube Q1, the power output end DC5V of the power management chip U1 is connected to the connection between the bridge chip 4 and the second interface 5, and the power input end +5V_BUS of the power management chip U1 is used to connect to the power supply of the card reading terminal device. The input end CFE_INS of the switch circuit, the first resistor R1, the switch tube Q1, the second resistor R2, the third resistor R3 and the power management chip U1 realize the function of detecting the memory card and the switch circuit, the detection is simple, the switch of the power supply is realized through the characteristics of the switch tube, and the circuit structure is simple.

[0049] When the memory card is not inserted, the input terminal CFE_INS is at a high level, the switch tube Q1 is an NMOS tube, when the input terminal CFE_INS is at a high level, the NMOS tube is turned on, the power management chip U1 is Loadswitch MP5017, when the NMOS tube is turned on, the enable terminal EN is at a low level, at this time the 5V of USB BUS does not power the bridge chip 4 and the memory card. When the memory card is not inserted, the input terminal CFE_INS is at a low level, the switch tube Q1 is an NMOS tube, when the input terminal CFE_INS is at a low level, the NMOS tube is turned off, the power management chip U1 is Loadswitch MP5017, when the NMOS tube is turned off, the enable terminal EN is at a high level, at this time the 5V of USB BUS powers the bridge chip 4 and the memory card.

[0050] As an optional implementation, in a utility model embodiment, see Figure 3As shown, a first thermal pad 7 is also provided, and the first thermal pad 7 is provided between the first interface 3 and the shell 1. The heat of the first interface 3 and the memory card is transferred to the upper cover 11 through the first thermal pad 7. The upper cover 11 is a metal shell, and the metal shell transfers the heat to the air, and the heat dissipation speed is fast. The first thermal pad 7 improves the heat dissipation speed of the first interface 3 and the memory card, and improves the safety of the card reader device during use.

[0051] As an optional implementation, in a utility model embodiment, see Figure 3 As shown, a second thermal pad 8 is also provided. The second thermal pad 8 is provided between the PCB board 2 and the housing 1. The heat of the chip on the PCB board 2 is conducted to the lower cover 12 through the second thermal pad 8. The lower cover 12 is a metal shell, and the metal shell then conducts the heat to the air, with a fast heat dissipation speed. The second thermal pad 8 is provided on a side of the PCB board 2 away from the first thermal pad 7. The second thermal pad 8 and the first thermal pad 7 dissipate heat through the lower cover 12 and the upper cover 11 respectively, avoiding a slow heat dissipation speed caused by heat dissipation on the same side. The second thermal pad improves the heat dissipation speed of the chip on the PCB board, and improves the safety of the card reader device during use.

[0052] As an optional implementation, in a utility model embodiment, see Figure 3 and Figure 4 As shown, a magnet 9 is also provided, and the magnet 9 is connected to the bottom of the housing 1. The magnet 9 prevents the card reader device from sliding during use, making it easy to use.

[0053] As an optional implementation, in a utility model embodiment, the first interface 3 is a CFExpress interface. The CFExpress interface of the card reader device is used to access the memory card. The reading and writing speeds of the CFExpress interface are fast, thereby improving the performance of the card reader device.

[0054] As an optional implementation, in a utility model embodiment, the second interface 5 is a USB Type C interface, and the USB Type C interface and the card reader terminal device are connected via a high-speed cable USB4.0. USB4.0 is the latest generation technology of the Universal Serial Bus. Compared with USB3.0, USB4.0 has powerful performance, with a data transmission speed of 40Gb / s per second and a maximum bandwidth of 50Gb / s per second. The USB4.0 high-speed cable increases the data transmission speed, and the second interface 5 on the shell 1 is a square groove to prevent the high-speed cable from shaking when the high-speed cable is inserted.

[0055] As an optional implementation, in a utility model embodiment, see Figure 3 and Figure 4 As shown, the housing 1 is provided with an upper cover 11 and a lower cover 12, and the upper cover 11 and the lower cover 12 are detachably connected and connected by screws, so as to facilitate the installation and removal of the card reader device.

[0056] As an optional implementation, in a utility model embodiment, see Figure 4 As shown, the upper cover 11 is provided with a plurality of strip grooves 111 , and the plurality of strip grooves 111 are arranged at intervals. The strip grooves 111 are used for heat dissipation to improve the heat dissipation performance of the card reader device.

[0057] As an optional implementation, in a utility model embodiment, see Figure 3 and Figure 4 As shown, a plurality of anti-slip strips 121 are provided under the lower cover 12 . The anti-slip strips 121 are made of rubber material. The rubber anti-slip strips 121 have high elasticity and viscosity and play a role of buffering and anti-slip.

[0058] In the description of the present utility model, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present utility model. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to the specific circumstances.

[0059] It should be noted that, in the present utility model, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0060] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be obvious to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A card reader device, characterized in that: include: Housing (1); A PCB board (2), which is arranged inside the housing (1); A first interface (3), which is arranged on the outside of the housing (1) and is used for inserting a memory card; A bridge piece (4), which is arranged on the PCB board (2) and connected to the first interface (3); A second interface (5), which is arranged on the outside of the housing (1), the second interface (5) is connected to the bridge (4), and the second interface (5) is used to connect to a card reading terminal device; A switch circuit (6) is arranged on the PCB board (2), and the switch circuit (6) is connected to the first interface (3), the bridge chip (4) and the second interface (5). When the second interface (5) is connected to the card reading terminal device and the first interface (3) is inserted into the memory card, the switch circuit (6) is used to transmit the electric energy of the card reading terminal device to the memory card and the bridge chip (4).

2. A card reader device according to claim 1, characterized in that: The switch circuit (6) comprises: An input end, the input end is connected to the first interface (3), and when the first interface (3) is inserted into the memory card, the input end is at a low level; a first resistor, wherein a first end of the first resistor is connected to the input end; A switch tube, a first end of the switch tube is connected to the second end of the first resistor; a second resistor, wherein a first end of the second resistor is connected to a power supply of the card reading terminal device, and a second end of the second resistor is connected to a first end of the switch tube; a third resistor, wherein a first end of the third resistor is connected to the first end of the switch tube, and a second end of the third resistor is grounded; A power management chip, wherein the enable end of the power management chip is connected to the third end of the switch tube, the power output end of the power management chip is connected to the connection between the bridge chip (4) and the second interface (5), and the power input end of the power management chip is used to connect to the power supply of the card reading terminal device.

3. A card reader device according to claim 1, characterized in that: Also includes: A first thermally conductive pad (7), wherein the first thermally conductive pad (7) is arranged between the first interface (3) and the housing (1).

4. A card reader device according to claim 1, characterized in that: Also includes: A second thermally conductive pad (8), wherein the second thermally conductive pad (8) is arranged between the PCB board (2) and the housing (1).

5. A card reader device according to claim 1, characterized in that: Also includes: A magnet (9), wherein the magnet (9) is connected to the bottom of the housing (1).

6. A card reader device according to claim 1, characterized in that: The first interface (3) is a CFExpress interface.

7. A card reader device according to claim 1, characterized in that: The second interface (5) is a USB Type C interface.

8. A card reader device according to claim 1, characterized in that: The housing (1) comprises: An upper cover (11) and a lower cover (12), wherein the upper cover (11) and the lower cover (12) are detachably connected.

9. A card reader device according to claim 8, characterized in that: The upper cover (11) is provided with a plurality of strip-shaped grooves (111).

10. A card reader device according to claim 8, characterized in that: A plurality of anti-slip strips (121) are provided below the lower cover (12).

Images