Magnetic axis mechanical keyboard with external MCU

Abstract

The utility model discloses a magnetic axis mechanical keyboard with an external MCU (Microprogrammed Control Unit). The MCU is externally arranged in a USB (Universal Serial Bus) wire rod or a switching body; one end of the MCU connects a USB port to terminal equipment, and the other end of the MCU is connected to a magnetic axis mechanical keyboard port; the electrical network connected with the USB interface is VCC, GND, D +, D-and SG; the electrical network connected with the keyboard is VCC, GND, DIA, DOA and SG. According to the utility model, the MCU is externally arranged, so that the dustproof and waterproof effects of the whole keyboard are better and fundamentally achieved, the keyboard is more convenient to upgrade, produce, detect, maintain and replace, all data line chips and data lines are connected in series for transmission, a split keyboard or a folding keyboard is naturally and more easily made, namely the keyboard is divided into two or more parts, and the keyboard is more convenient to use. All the parts can be connected only through VCC, GND, DIA and DOA, and the external MCU can better achieve the function.

Description

TECHNICAL FIELD

[0001] The utility model relates to the keyboard field, especially a kind of magnetic shaft mechanical keyboard of MCU external. BACKGROUND

[0002] The information control unit (for example microcontroller) of several (usually 61-104) keys of existing keyboard is designed on the keyboard PCB, with the following shortcomings:

[0003] 1, microcontroller is placed in keyboard, dustproof effect is not good;

[0004] 2, microcontroller is placed in keyboard, waterproof effect is not good;

[0005] 3, microcontroller is placed in keyboard, it is inconvenient to detect, maintain and replace, and cost is higher;

[0006] 4, if the PCB of entire keyboard is located in metal frame (for example aluminum), due to the reason of metal shielding, wireless signal greatly attenuates, and wireless keyboard function is difficult to directly realize;

[0007] 5, microcontroller is placed in keyboard, ordinary keyboard all adopt matrix circuit, and the number of microcontroller PIN pin needed is too much, external microcontroller needs to be externally connected with several tens of data lines, and there is light control circuit, which is almost impossible.

[0008] 6, microcontroller is placed in keyboard, and it occupies the design space of PCB board. CONTENT OF UTILITY MODEL

[0009] The utility model aims at overcoming the shortcomings and deficiencies of prior art, and provides a kind of magnetic shaft mechanical keyboard of MCU external.

[0010] The utility model aims at overcoming the shortcomings and deficiencies of prior art, and provides a kind of magnetic shaft mechanical keyboard of MCU external.

[0011] A kind of magnetic shaft mechanical keyboard of MCU external, including a USB wire material, the USB wire material is built-in micro PCBA, micro PCBA is provided with the MCU for processing magnetic shaft mechanical keyboard key information and light information, one end of MCU is connected USB port to terminal equipment, the other end is connected to magnetic shaft mechanical keyboard port;

[0012] The USB wire material, MCU simultaneously has the following electrical network: power supply PIN foot VCC, ground PIN foot GND, hall serial input data line DIA, hall serial output data line DOA, wire material shield line SG, USB differential data line D+, USB differential data line D-;

[0013] Among them, the same nominal electrical network VCC, GND, DIA, DOA, SG, D+, D- is connected together in electricity.

[0014] The electrical network of the USB interface end of the terminal device connected by the USB cable is: VCC, GND, D+, D-, and SG;

[0015] The electrical network of the interface end of the magnetic shaft mechanical keyboard connected by the USB cable is: VCC, GND, DIA, DOA, and SG;

[0016] The DIA and DOA in the USB cable are respectively connected to both ends of the data line whole formed by the series connection of a plurality of data line chips in the magnetic shaft mechanical keyboard. Each magnetic shaft key of the magnetic shaft mechanical keyboard corresponds to a data line chip, the data line chip contains Hall key information and RGB driving function, and the data line chip adopts LED packaging. The Hall key information and RGB key indication function are completed through the DIA and DOA of the data line chip.

[0017] The USB cable is connected to the terminal device in a wired manner, the USB interface of the terminal device connected by the USB cable is a Type C port, a USB A port, or any one of the arbitrary USB interfaces; the interface of the magnetic shaft mechanical keyboard connected by the USB cable is any data connection interface, which can be correctly connected to the electrical VCC, GND, DIA, DOA, and SG, or the interface line is directly welded one by one to the PCB of the magnetic shaft mechanical keyboard.

[0018] The MCU is a MCU with USB, Bluetooth, and 2.4GHz wireless functions; that is, the MCU is a three-mode MCU, which supports wired, Bluetooth, and 2.4GHz wireless three modes;

[0019] The 2.4G antenna is arranged on the micro-PCB;

[0020] The electrical network of the interface end of the magnetic shaft mechanical keyboard connected by the USB cable is increased by a battery positive line BAT+;

[0021] The battery negative line BAT- is connected to the GND network in the magnetic shaft mechanical keyboard;

[0022] The battery positive line BAT+ not only supplies power to the MCU, but also detects the battery capacity in the magnetic shaft mechanical keyboard, and charges the battery when there is power at the USB port.

[0023] A magnetic shaft mechanical keyboard with an external MCU includes a conversion type body and a USB cable. The conversion type body is internally provided with a micro-PCBA, and the micro-PCBA is provided with an MCU for processing key information and light information of the magnetic shaft mechanical keyboard. One end of the conversion type body is connected to a terminal device through a USB interface line, and the other end is connected to a magnetic shaft mechanical keyboard through an arbitrary data line.

[0024] The adapter body and the MCU have the following electrical networks: a power supply PIN VCC, a ground PIN GND, a Hall serial input data line DIA, a Hall serial output data line DOA, a wire shielding line SG, a USB serial data positive line D+, and a USB serial data negative line D-;

[0025] The same nominal electrical networks VCC, GND, DIA, DOA, SG, D+, and D- are electrically connected together.

[0026] The electrical networks connected to the USB interface end are VCC, GND, D+, D-, and SG.

[0027] The electrical networks of the arbitrary data line interface end are VCC, GND, DIA, DOA, and SG.

[0028] The DIA and DOA in the adapter body are respectively connected to two ends of a data line whole formed by a plurality of data line chips in series in the magnetic shaft mechanical keyboard.

[0029] One end of the USB wire connected to the adapter body is a Type C port, a USB A port, or one of arbitrary USB interfaces.

[0030] The MCU is a MCU with USB, Bluetooth, and 2.4 GHz wireless functions.

[0031] The micro-PCB is provided with a 2.4G antenna.

[0032] The electrical networks of the interface end of the adapter body connected to the magnetic shaft mechanical keyboard are increased by a battery positive line BAT+.

[0033] The battery negative line BAT- is connected to the GND network in the magnetic shaft mechanical keyboard.

[0034] The battery positive line BAT+ not only supplies power to the MCU, but also detects the battery capacity in the magnetic shaft mechanical keyboard and charges the battery when there is power at the USB port.

[0035] The adapter type body is a body with a screen, and the screen can display several keyboard information according to needs, and the keyboard information includes working voltage, working current, working mode, keyboard operation instruction and brand LOGO.

[0036] The MCU can realize arbitrary switching of the magnetic shaft mechanical keyboard between USB wired mode, Bluetooth mode and 2.4GHz wireless mode through a key or a dial switch on the micro PCBA, or realize switching of the working mode through a combination key defined by the keyboard.

[0037] Other electrical PINs are added to the MCU and connected to the magnetic shaft mechanical keyboard interface to complete more practical functions.

[0038] A voltage stabilizing power chip LDO and a power management chip are added to the micro PCBA to realize more practical functions.

[0039] The data line chip integrates a magnetic induction integrated circuit and an RGB color driving circuit, and the data line chip is connected in series through a single bus data line.

[0040] The single bus data line simultaneously transmits key information and color brightness information, and the indicator light in the magnetic shaft mechanical keyboard is controlled through a Hall serial input data line DIA and a Hall serial output data line DOA, and the indicator light includes NUM, CAPS and SCR.

[0041] The magnetic shaft mechanical keyboard is a split type magnetic shaft mechanical keyboard or a folding type magnetic shaft mechanical keyboard, all data line chips are connected in series through a single bus for serial transmission, and the magnetic shaft mechanical keyboard is divided into two or more parts, and the adjacent two parts are connected through a power PIN VCC, a ground PIN GND, a Hall serial input data line DIA and a Hall serial output data line DOA.

[0042] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0043] 1. The microcontroller of the utility model is placed outside the magnetic shaft mechanical keyboard and in the wire, and has complete dustproof effect and better waterproof effect.

[0044] 2. The microcontroller of the utility model is placed outside the magnetic shaft mechanical keyboard and in the external adapter body, and has complete dustproof effect and better waterproof effect.

[0045] 3. When the microcontroller of the utility model is placed outside the magnetic shaft mechanical keyboard and in the wire and simultaneously has USB, Bluetooth and 2.4GHz wireless functions, the antenna is exposed, and better wireless transmission effect is achieved for the metal mechanical keyboard.

[0046] 4. The microcontroller of the utility model is placed in the external type body of the magnetic shaft mechanical keyboard, when the external type body is the nonmetallic type frame, the microcontroller has USB, Bluetooth and 2.4GHz wireless function simultaneously, for the metal mechanical keyboard, there is better wireless transmission effect.

[0047] 5. The utility model relates to the detection, maintenance and replacement of the microcontroller, the utility model can be more convenient, due to the cost reduction, even can only replace and not repair.

[0048] 6. The microcontroller of the utility model is placed in the magnetic shaft mechanical keyboard, due to all data line chips series connection single bus series transmission, it is more natural to make into the split type keyboard or folding keyboard, that is to say, the keyboard is divided into two parts and more than two parts, as long as VCC, GND, DIA, DOA are connected between each part. If the original magnetic shaft mechanical keyboard wants to make into the split type keyboard or folding keyboard, dozens of lines need to be connected between the adjacent two parts, which is complex and easy to damage, and the utility model only needs to be connected with 4 lines. BRIEF DESCRIPTION OF DRAWINGS

[0049] Figure 1 It is the appearance view of USB wire material containing MCU in embodiment 1.

[0050] Figure 2 It is the internal structure schematic view of USB wire material containing MCU in embodiment 1.

[0051] Figure 3 It is the appearance view of USB wire material containing MCU in embodiment 2.

[0052] Figure 4 It is the internal structure schematic view of USB wire material containing MCU in embodiment 2.

[0053] Figure 5 It is the appearance view of USB wire material containing MCU in embodiment 3.

[0054] Figure 6 It is the internal structure schematic view of wire material containing MCU in embodiment 3.

[0055] Figure 7 It is the appearance view of external type body containing MCU in embodiment 4.

[0056] Figure 8 It is the internal structure schematic view of external type body containing MCU in embodiment 4.

[0057] Figure 9 It is the interface schematic view of external type body containing MCU in embodiment 5.

[0058] Figure 10Schematic diagram of the internal structure of the external body containing the MCU corresponding to Example 5.

[0059] Figure 11 Schematic diagram of the internal structure of the external body containing the MCU corresponding to Example 6.

[0060] Figure 12 Schematic diagram of the external body interface corresponding to Example 7 containing the MCU.

[0061] Figure 13 Schematic diagram of the external body interface corresponding to Example 8 containing the MCU.

[0062] Figure 14 Schematic diagram of the internal structure of a magnetic axis mechanical keyboard with 102 keys corresponding to Example 1.

[0063] Figure 15 Schematic diagram of the internal structure of a magnetic axis mechanical keyboard with 102 keys corresponding to Example 2.

[0064] Figure 16 Schematic diagram of the internal structure of a magnetic axis mechanical keyboard with 102 keys corresponding to Example 3.

[0065] Figure 17 Schematic diagram of the internal structure of a magnetic axis mechanical keyboard with 102 keys corresponding to Example 4.

[0066] Figure 18 It is the connecting cable between two adjacent keyboards of a split magnetic axis mechanical keyboard.

[0067] Figure 19 This is the first internal structure diagram of the split magnetic axis mechanical keyboard.

[0068] Figure 20 This is the second internal structure diagram of the split magnetic axis mechanical keyboard.

[0069] The meanings of the reference numerals are as follows:

[0070] 1-1: First USB A port; 1-2: First USB data cable; 1-3: First micro PCBA; 1-4: Second USB data cable; 1-5A: First male port; 1-5B: First female connector;

[0071] 2-1: First Type-C male port; 2-2: Third USB data cable; 2-3: Second micro PCBA; 2-4: Fourth USB data cable; 2-5A: Second Type-C male port; 2-5B: First Type-C female port;

[0072] 3-1: second USB A port; 3-2: fifth USB data line; 3-3: third micro PCBA; 3-4: sixth USB data line; 3-5A: third TypeC male; 3-5B: second TypeC female;

[0073] 4-1: third USB A port; 4-2: seventh USB data line; 4-3: fourth micro PCBA; 4-4: eighth USB data line; 4-5A: fourth TypeC male; 4-5B: third TypeC female;

[0074] 5-1: fourth TypeC female; 5-2: fifth TypeC female; 5-3: first adapter type;

[0075] 6-1: sixth TypeC female; 6-2: fifth TypeC male; 6-3: second adapter type;

[0076] 7-1: sixth TypeC male; 7-2: seventh TypeC male; 7-3: third adapter type. DETAILED DESCRIPTION

[0077] The utility model will be described in further detail below in combination with examples and drawings, but the implementation mode of the utility model is not limited thereto.

[0078] Example 1

[0079] A magnetic shaft mechanical keyboard outside MCU includes a USB wire, the USB wire is built-in micro PCBA, and the micro PCBA is provided with MCU for processing magnetic shaft mechanical keyboard key information and light information, one end of the MCU is connected to the USB port to the terminal equipment, and the other end is connected to the magnetic shaft mechanical keyboard port;

[0080] The USB wire and the MCU simultaneously have the following electrical networks: power supply PIN foot VCC, ground PIN foot GND, Hall serial input data line DIA, Hall serial output data line DOA, wire shielding line SG, USB differential data line D+, and USB differential data line D-;

[0081] Among them, the same nominal electrical networks VCC, GND, DIA, DOA, SG, D+ and D- are electrically connected together;

[0082] The electrical network of the USB interface end of the USB wire connected to the terminal equipment is VCC, GND, D+, D-, and SG;

[0083] The electrical network of the USB interface end of the USB wire connected to the magnetic shaft mechanical keyboard is VCC, GND, DIA, DOA, and SG;

[0084] USB wire DIA, DOA, respectively, connected in the magnetic shaft mechanical keyboard in a number of data line chip formed by the series connection of the two ends of the data line as a whole; magnetic shaft mechanical keyboard each magnetic shaft key corresponding to a data line chip, the data line chip contains Hall key information and RGB drive function, the data line chip using LED package; Hall key information and RGB key indication function through the DIA, DOA of the data line chip is completed.

[0085] MCU is a MCU with USB, Bluetooth and 2.4GHz wireless function; that is, the MCU is a three-mode MCU, supporting wired, Bluetooth and 2.4GHz wireless three modes;

[0086] Mini PCB is provided with a 2.4G antenna;

[0087] The USB wire connects the battery positive line BAT+ of the electrical network of the magnetic shaft mechanical keyboard interface end;

[0088] The battery negative line BAT- is connected to the GND network in the magnetic shaft mechanical keyboard;

[0089] The battery positive line BAT+ not only supplies power to the MCU, but also detects the battery capacity in the magnetic shaft mechanical keyboard, and charges the battery when there is power at the USB port.

[0090] The MCU realizes the arbitrary switching of the magnetic shaft mechanical keyboard between the USB wired mode, Bluetooth mode and 2.4GHz wireless mode through the keys or toggle switches on the micro PCBA, or switches the working mode through the combination keys defined by the keyboard.

[0091] The data line chip integrates a magnetic induction integrated circuit and an RGB color driving circuit; the data line chip is connected in series through a single bus data line;

[0092] The single bus data line simultaneously transmits key information and color brightness information, and the indicator light in the magnetic shaft mechanical keyboard is also controlled by the Hall serial input data line DIA and the Hall serial output data line DOA, and the indicator light includes NUM, CAPS and SCR.

[0093] All data line chips are connected in series through a single bus for serial transmission, and the magnetic shaft mechanical keyboard is divided into two or more parts, and as long as the power PIN VCC, ground PIN GND, Hall serial input data line DIA and Hall serial output data line DOA are connected between adjacent two parts.

[0094] As Figure 1 , 2, the first USB A port 1-1 is used for connecting the terminal device; the first USB data line 1-2 is used for connecting the first USB A port 1-1 and the MCU; the first micro PCBA 1-3 is provided with the MCU; the second USB data line 1-4 is used for connecting the MCU and the first male port 1-5A.

[0095] As shown in Figure 14 , the first female seat 1-5B is used for connecting the magnetic shaft mechanical keyboard and the first male port 1-5A.

[0096] After the first female seat 1-5B on the magnetic shaft mechanical keyboard is connected with the first male port 1-5A, the second USB data line 1-4 is connected, then the first micro PCBA 1-3 is connected, then the first USB data line 1-2 is connected, and then the first USB A port 1-1 is connected, thereby forming a complete magnetic shaft mechanical keyboard USB line with the MCU externally connected. The MCU gives the color and brightness required by each key in the keyboard through DIA, the MCU gives the key information data chain through DIA, the data line chip corresponding to the key changes the corresponding data bit in the data chain and then transmits it to DOA, until the last key DOA (102), and then the MCU processes and transmits it to the terminal device.

[0097] Embodiment 2

[0098] Compared with the magnetic shaft mechanical keyboard with the MCU externally connected in embodiment 1, the magnetic shaft mechanical keyboard with the MCU externally connected in embodiment 2 mainly differs in that the interfaces at two ends of the USB wire are different; other similar parts are not described again.

[0099] As shown in Figure 3 , 4 , the first TypeC male port 2-1 is used for connecting the terminal device; the third USB data line 2-2 is used for connecting the first TypeC male port 2-1 and the MCU on the second micro PCBA 2-3; the fourth USB data line 2-4 is used for connecting the MCU and the second TypeC male port 2-5A.

[0100] As shown in Figure 15 , the first TypeC female seat 2-5B is used for connecting the magnetic shaft mechanical keyboard and the second TypeC male port 2-5A.

[0101] Embodiment 3

[0102] Compared with the magnetic shaft mechanical keyboard with the MCU externally connected in embodiment 1, the magnetic shaft mechanical keyboard with the MCU externally connected in embodiment 3 mainly differs in that the interfaces at two ends of the USB wire are different; other similar parts are not described again.

[0103] As shown in Figure 5 , 6, the second USB A port 3-1 is used for connecting terminal equipment; the fifth USB data line 3-2 is used for connecting the second USB A port 3-1 and the MCU on the third micro-PCBA 3-3; the sixth USB data line 3-4 is used for connecting the MCU and the third TypeC male port 3-5A;

[0104] As Figure 16 , the second TypeC female socket 3-5B is used for connecting the magnetic shaft mechanical keyboard and the third TypeC male port 3-5A.

[0105] Embodiment 4

[0106] The MCU external magnetic shaft mechanical keyboard of embodiment 4 is compared with embodiment 3, the main difference is that the MCU on the fourth micro-PCBA 4-3 increases two electrical PINs P02, P03 to realize the encoder function; other similar parts are not described again.

[0107] As Figure 7 , 8 , the third USB A port 4-1 is used for connecting terminal equipment; the seventh USB data line 4-2 is used for connecting the third USB A port 4-1 and the MCU on the fourth micro-PCBA 4-3; the eighth USB data line 4-4 is used for connecting the MCU and the fourth TypeC male port 4-5A;

[0108] As Figure 17 , the third TypeC female socket 4-5B is used for connecting the magnetic shaft mechanical keyboard and the fourth TypeC male port 4-5A.

[0109] Embodiment 5

[0110] A MCU external magnetic shaft mechanical keyboard, comprising a switching type body and a USB wire, the switching type body is internally provided with a micro-PCBA, and the micro-PCBA is provided with an MCU for processing magnetic shaft mechanical keyboard key information and light information; one end of the switching type body is connected to terminal equipment through a USB interface line; the other end is connected to a magnetic shaft mechanical keyboard through any data line;

[0111] The switching type body and the MCU have the following electrical networks: power supply PIN VCC, ground PIN GND, Hall serial input data line DIA, Hall serial output data line DOA, wire shielding line SG, USB serial data positive line D+, and USB serial data negative line D-;

[0112] Among them, the same nominal electrical networks VCC, GND, DIA, DOA, SG, D+, and D- are electrically connected together;

[0113] The electrical networks connected to the USB interface end are VCC, GND, D+, D-, and SG;

[0114] The electrical network of the arbitrary data line interface end is: VCC, GND, DIA, DOA, SG;

[0115] The DIA and DOA in the adapter type body are respectively connected to two ends of a data line whole formed by a plurality of data line chips connected in series in the magnetic shaft mechanical keyboard; each magnetic shaft key of the magnetic shaft mechanical keyboard corresponds to a data line chip, the data line chip contains Hall key information and RGB driving function, and the data line chip adopts LED packaging; the Hall key information and RGB key indication function are completed through the DIA and DOA of the data line chip.

[0116] The MCU is a MCU with USB, Bluetooth and 2.4GHz wireless functions; that is, the MCU is a three-mode MCU, supporting wired, Bluetooth and 2.4GHz wireless three modes;

[0117] The 2.4G antenna is arranged on the micro-PCB;

[0118] The battery positive line BAT+ is added to the electrical network of the interface end of the adapter type body connected to the magnetic shaft mechanical keyboard;

[0119] The battery negative line BAT- is connected to the GND network in the magnetic shaft mechanical keyboard;

[0120] The battery positive line BAT+ not only supplies power to the MCU, but also detects the battery capacity arranged in the magnetic shaft mechanical keyboard, and charges the battery when there is power at the USB port.

[0121] The adapter type body is a type body with a screen, which can display a plurality of keyboard information according to needs, and the keyboard information includes working voltage, working current, working mode, keyboard operation instruction and brand LOGO.

[0122] The MCU realizes arbitrary switching of the magnetic shaft mechanical keyboard between USB wired mode, Bluetooth mode and 2.4GHz wireless mode through the keys or dial switches on the micro-PCBA, or switches the working mode through the combination keys defined by the keyboard.

[0123] The data line chip integrates a magnetic induction integrated circuit and an RGB color driving circuit; and the data line chip is connected in series through a single bus data line;

[0124] The single bus data line simultaneously transmits key information and color brightness information, and the indicator light in the magnetic shaft mechanical keyboard is also controlled through the Hall serial input data line DIA and the Hall serial output data line DOA, and the indicator light includes NUM, CAPS and SCR.

[0125] All data line chips are connected in series in a single bus for serial transmission, and the magnetic shaft mechanical keyboard is divided into two or more parts, and as long as the power supply PIN foot VCC, ground PIN foot GND, Hall serial input data line DIA and Hall serial output data line DOA are connected between the adjacent two parts.

[0126] As Figure 9 , 10 , the first external type body 5-3 is connected to the terminal device through the fourth TypeC female socket 5-1 and then through the USB interface line; the first external type body 5-3 is connected to the magnetic shaft mechanical keyboard through the fifth TypeC male socket 5-2 and then through any data line with a TypeC male socket.

[0127] Example 6

[0128] As Figure 11 , the main difference between the MCU external magnetic shaft mechanical keyboard of example 6 and example 5 is that the micro PCBA of the external type body is increased with a voltage stabilizing power chip LDO, a power management chip, and a battery placed in the magnetic shaft mechanical keyboard; other similar parts are not described again.

[0129] Example 7

[0130] As Figure 12 , the main difference between the MCU external magnetic shaft mechanical keyboard of example 7 and example 5 is that the second adapter type body 6-3 is connected to the terminal device through the sixth TypeC female socket 6-1 and then through the USB interface line; the second adapter type body 6-3 is connected to the magnetic shaft mechanical keyboard through the fifth TypeC male socket 6-2 and then through any data line with a TypeC female socket.

[0131] Alternatively, the second adapter type body 6-3 is directly connected to the TypeC female socket provided on the magnetic shaft mechanical keyboard through the fifth TypeC male socket 6-2.

[0132] When the second adapter type body 6-3 is made of plastic, even if the magnetic shaft mechanical keyboard is made of metal frame (such as aluminum), it does not affect the transmission of wireless signal or Bluetooth signal, which is very conducive to the realization of three-mode mode of the magnetic shaft mechanical keyboard. The magnetic shaft mechanical keyboard with metal frame does not need to be designed additionally, and can be switched between USB wired mode, Bluetooth mode and 2.4GHz wireless mode at will.

[0133] Example 8

[0134] As Figure 13, the MCU external magnetic shaft mechanical keyboard of embodiment 8 is compared with embodiment 5, and the main difference is that the third adapter type body 7-3 passes through the sixth TypeC male mouth 7-1, then passes through the USB interface line to the terminal equipment, and the third adapter type body 7-3 passes through the seventh TypeC male mouth 7-2, then passes through any data line with TypeC female seat to connect the magnetic shaft mechanical keyboard.

[0135] It should be noted that in embodiments 1 to 8, the magnetic shaft mechanical keyboard is a split magnetic shaft mechanical keyboard or a folding magnetic shaft mechanical keyboard. Figure 18 、 19 , 20, the magnetic shaft mechanical keyboard is a split magnetic shaft mechanical keyboard, which is divided into a left keyboard (such as Figure 19 , with 45 keys) and a right keyboard (such as Figure 20 , with 57 keys), and the left keyboard and the right keyboard are connected in series through DIA and DOA.

[0136] The above embodiments are the preferred embodiments of the utility model, but the embodiments of the utility model are not limited by the above embodiments, and any change, modification, replacement, combination, simplification made without departing from the spirit and principle of the utility model should be an equivalent replacement method, which is included in the protection scope of the utility model.

Claims

1. A magnetic axis mechanical keyboard with an external MCU, characterized by: The device includes a USB cable with a built-in micro PCBA. The micro PCBA is equipped with an MCU for processing key information and light information of the magnetic axis mechanical keyboard. One end of the MCU is connected to the USB port of the terminal device, and the other end is connected to the port of the magnetic axis mechanical keyboard. The USB cable and MCU also have the following electrical network: power PIN pin VCC, ground PIN pin GND, Hall serial input data line DIA, Hall serial output data line DOA, cable shield line SG, USB differential data line D+, USB differential data line D-; Among them, the electrical networks VCC, GND, DIA, DOA, SG, D+, and D- of the same nominal value are electrically connected together; The electrical network of the USB cable connected to the USB interface of the terminal device is: VCC, GND, D+, D-, SG; The electrical network of the USB cable connected to the magnetic axis mechanical keyboard interface is: VCC, GND, DIA, DOA, SG; The DIA and DOA in the USB cable are connected to the two ends of the data line formed by several data line chips in series in the magnetic axis mechanical keyboard. Each magnetic axis key of the magnetic axis mechanical keyboard corresponds to a data line chip. The data line chip contains Hall key information and RGB driving function. The data line chip adopts LED packaging. The Hall key information and RGB key indication function are completed by the DIA and DOA of the data line chip. The data line chip integrates a magnetic induction integrated circuit and an RGB magic color driving circuit; the data line chips are connected in series via a single bus data line; The single bus data line transmits key information and color brightness information at the same time. The indicator light in the magnetic axis mechanical keyboard is also controlled by the Hall serial input data line DIA and the Hall serial output data line DOA.

2. The magnetic axis mechanical keyboard with an external MCU according to claim 1, characterized in that: The USB cable is connected to the terminal device by wire, and the USB interface of the terminal device connected to the USB cable is a Type C port, a USB A port, or any other USB interface; the USB cable is connected to the magnetic axis mechanical keyboard interface as any data connection interface, as long as the electrical VCC, GND, DIA, DOA, and SG are correctly connected, or the interface wires can be directly soldered to the magnetic axis mechanical keyboard PCB one by one.

3. The magnetic axis mechanical keyboard with an external MCU according to claim 1, characterized in that: The MCU has USB, Bluetooth and 2.4GHz wireless functions; that is, the MCU is a three-mode MCU that supports wired, Bluetooth and 2.4GHz wireless modes; A 2.4G antenna is placed on the micro PCB; The USB cable is connected to the electrical network of the magnetic axis mechanical keyboard interface end and the battery positive line BAT+ is added; The negative battery line BAT- is connected to the GND network in the magnetic axis mechanical keyboard; The battery positive line BAT+ not only powers the MCU, but also detects the battery level in the magnetic axis mechanical keyboard and charges the battery when there is power in the USB port.

4. A magnetic axis mechanical keyboard with an external MCU, characterized by: The device includes an adapter and a USB cable. The adapter has a built-in micro PCBA, which is equipped with an MCU for processing key information and lighting information of the magnetic axis mechanical keyboard. One end of the adapter is connected to the terminal device through a USB interface cable, and the other end is connected to the magnetic axis mechanical keyboard through any data cable. The adapter and MCU also have the following electrical network: power PIN pin VCC, ground PIN pin GND, Hall serial input data line DIA, Hall serial output data line DOA, wire shield line SG, USB serial data positive line D+, USB serial data negative line D-; Among them, the electrical networks VCC, GND, DIA, DOA, SG, D+, and D- of the same nominal value are electrically connected together; The electrical network connected to the USB interface is: VCC, GND, D+, D-, SG; The electrical network at any data line interface end is: VCC, GND, DIA, DOA, SG; The DIA and DOA inside the adapter are respectively connected to the two ends of the data line formed by several data line chips in series in the magnetic axis mechanical keyboard. Each magnetic axis key of the magnetic axis mechanical keyboard corresponds to a data line chip. The data line chip contains Hall key information and RGB driving functions. The data line chip adopts LED packaging. The Hall key information and RGB key indication functions are completed by the DIA and DOA of the data line chip. The data line chip integrates a magnetic induction integrated circuit and an RGB magic color driving circuit; the data line chips are connected in series via a single bus data line; The single bus data line transmits key information and color brightness information at the same time. The indicator light in the magnetic axis mechanical keyboard is also controlled by the Hall serial input data line DIA and the Hall serial output data line DOA. One end of the adapter connected to the USB cable is a Type C port, a USB A port, or any other USB port; the interface end of the adapter connected to the magnetic axis mechanical keyboard is any data connection cable, or TYPE C is used as the data connection cable port, and is correctly connected to the VCC, GND, DIA, DOA, and SG in the magnetic axis mechanical keyboard interface, and then directly connected to the magnetic axis mechanical keyboard interface.

5. The magnetic axis mechanical keyboard with an external MCU according to claim 4, characterized in that: The MCU has USB, Bluetooth and 2.4GHz wireless functions; that is, the MCU is a three-mode MCU that supports wired, Bluetooth and 2.4GHz wireless modes; A 2.4G antenna is placed on the micro PCB; The adapter body is connected to the electrical network of the magnetic axis mechanical keyboard interface end to add the battery positive line BAT+; The negative battery line BAT- is connected to the GND network in the magnetic axis mechanical keyboard; The battery positive line BAT+ not only powers the MCU, but also detects the battery level in the magnetic axis mechanical keyboard and charges the battery when there is power in the USB port.

6. The magnetic axis mechanical keyboard with an external MCU according to claim 4 or 5, characterized in that: The adapter body is a body with a screen, and the screen can display a number of keyboard information as needed. The keyboard information includes working voltage, working current, working mode, keyboard operation instructions, and brand LOGO.

7. The magnetic axis mechanical keyboard with an external MCU according to claim 3 or 5, characterized in that: The MCU uses the buttons or toggle switches on the micro PCBA to switch the magnetic axis mechanical keyboard between USB wired mode, Bluetooth mode, and 2.4GHz wireless mode, or switches the working mode through a custom combination of keys on the keyboard.

8. The magnetic axis mechanical keyboard with an external MCU according to claim 1 or 4, characterized in that: Other electrical PIN pins are added to the MCU and connected to the magnetic axis mechanical keyboard interface to complete more practical functions.

9. The magnetic axis mechanical keyboard with an external MCU according to claim 1 or 4, characterized in that: The micro PCBA is added with a voltage regulator chip LDO and a power management chip to achieve more practical functions.

10. The magnetic axis mechanical keyboard with an external MCU according to claim 1 or 4, characterized in that: The magnetic axis mechanical keyboard is a split magnetic axis mechanical keyboard or a foldable magnetic axis mechanical keyboard. All data line chips are connected in series on a single bus for serial transmission. The magnetic axis mechanical keyboard is divided into two or more parts. The two adjacent parts only need to be connected by the power PIN pin VCC, the ground PIN pin GND, the Hall serial input data line DIA, and the Hall serial output data line DOA.

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