Method for controlling working state of magnetic sensor, method for reducing power consumption of magnetic axis keyboard, magnetic axis keyboard, magnetic axis key, notebook computer and electronic equipment

Abstract

The invention provides a method for controlling the working state of a magnetic sensor, and the method comprises the steps: enabling a corresponding magnetic sensor to be in a non-working state when a magnetic axis key is not pressed, and enabling the corresponding magnetic sensor to be switched to be in a working state when the magnetic axis key is pressed. Therefore, the magnetic sensor corresponding to each magnetic axis key does not need to be continuously kept in a high-power-consumption working state, and the corresponding magnetic sensor is activated only when a certain magnetic axis key is pressed, so that the power consumption of the electronic equipment is greatly reduced.

Description

Technical Field

[0001] The invention relates to a method for reducing energy consumption of electronic equipment. By controlling the state of a magnetic sensor in the electronic equipment, the power consumption of the electronic equipment is significantly reduced. The method is particularly suitable for related equipment using magnetic axis keys and magnetic axis keyboards. Background Art

[0002] With the continuous advancement of electronic equipment control technology, in addition to traditional mechanical switches, technologies using light sensing and magnetic induction control are gradually being applied. For example, in the field of mechanical keyboards, since the 1980s, the types of products that have appeared successively include mechanical axis keyboards (around 1984), optical axis keyboards (around 2014), and magnetic axis keyboards (around 2019). Magnetic axis keyboards have faster response speeds and more stable input quality and are favored by users. Each magnetic axis key of the magnetic axis keyboard has a magnet and a corresponding magnetic sensor. When the key is not pressed, the magnet keeps a certain distance from the magnetic sensor. When the key is pressed, the magnet approaches the magnetic sensor as the key is pressed. The magnetic sensor senses the change in the magnetic field and generates a corresponding sensing output. Although the magnetic axis keyboard has many advantages, since each key needs to be configured with a corresponding magnetic sensor, and the magnetic sensor needs to be kept in working condition at all times, the magnetic axis keyboard has high energy consumption and high heat generation. Therefore, the magnetic axis keyboard needs to be configured with a larger power supply battery. In addition to increasing the cost, the increase in the power supply battery also further occupies the space of the keyboard, making the keyboard heat dissipation more difficult. Even on non-portable devices with sufficient power supply, the magnetic induction sensitivity is prone to decrease as the continuous working time increases, resulting in unstable keyboard input and instability of the entire electronic device. On portable devices powered by batteries, there are also problems such as low space utilization and high energy consumption, which makes magnetic axis keyboards not well used in portable devices such as laptops. Summary of the invention

[0003] On one hand, the present invention provides a method for controlling the working state of a magnetic sensor, which is applied to a magnetic axis keyboard, wherein the magnetic axis keyboard includes a magnetic axis button and a magnetic sensor corresponding to the magnetic axis button, and is characterized in that: when the button is not pressed, the magnetic sensor is in a non-working state, and when the button is pressed, the magnetic sensor switches to a working state. The magnetic sensor of the present invention includes various Hall elements, magnetoresistive elements (including but not limited to AMR, GMR, TMR), etc. referred to in the industry, which refer to any element that can cooperate with a magnetic part to form a magnetic induction effect (or Hall effect). The non-working state is a power-off state or a dormant state in which the power consumption is much less than the normal working power consumption. At this time, the power consumption of the magnetic sensor itself is 0 or almost 0.

[0004] Furthermore, when the button is not pressed, the power supply circuit of the magnetic sensor is in an open circuit state, and when the magnetic axis button is pressed, the power supply circuit of the magnetic sensor is switched to a connected state. The power supply circuit mentioned in the present invention is a circuit in a broad sense, and how to implement the power supply circuit for the magnetic sensor is also common sense in the art. As long as it is a circuit that can be used to power the magnetic sensor, it can be an integrated circuit type, an electronic component type, or a combination of multiple types of circuits. The control of the power supply circuit can be mechanical physical control or control through programs, software, etc. Unless otherwise specified in the specific solution, the specific implementation form of the circuit is not limited to hardware, control logic, etc.

[0005] Furthermore, when the button is not pressed, the power supply circuit of the magnetic sensor inputs an electrical signal so that the magnetic sensor cannot be turned on normally. When the magnetic axis button is pressed, the power supply circuit of the magnetic sensor inputs another electrical signal so that the magnetic sensor switches to a working state.

[0006] Furthermore, the magnetic axis button is provided with a switch for controlling the working state of the magnetic sensor. When the magnetic axis button is pressed, the on / off state of the switch is switched, so that the magnetic sensor is switched to the working state.

[0007] Furthermore, the switch is a normally open switch. When the button is not pressed, the switch remains open. When the magnetic axis button is pressed, the switch closes, so that the magnetic sensor switches to a working state.

[0008] Furthermore, the switch is a normally closed switch. When the button is not pressed, the switch remains closed. When the magnetic axis button is pressed, the switch is opened, so that the magnetic sensor switches to a working state.

[0009] Furthermore, when the button is pressed for more than a certain distance, the magnetic sensor switches to a working state. Since users are accustomed to triggering input signals at a certain pressing position when using buttons, in order to adapt to the actual usage habits of users and prevent accidental activation of the magnetic sensor caused by accidental touches, when the button is set to be pressed for a distance of more than 0.03mm, the magnetic sensor switches to a working state, which can not only ensure the actual user feel, but also increase the sensitivity of the button.

[0010] Furthermore, when the sensor is switched to the working state, the keyboard gives a visual prompt or a sound prompt. In order to facilitate the player's operation feedback, increase playability, and also facilitate the player's maintenance, when the magnetic sensor is switched to the working state, the keyboard is built with an indicator light and / or a speaker and other components to give a visual and / or sound prompt.

[0011] On the other hand, the present invention provides a magnetic axis keyboard, including: a PCB and a magnetic axis key, the magnetic axis key is connected to the PCB, a magnetic sensor corresponding to the key is installed on the PCB, and it is characterized in that: the magnetic axis key includes a switch for controlling the working state of the magnetic sensor. In the present invention, there is no limitation on the specific structure of the magnetic axis key. As long as the magnetic axis key that can realize input using the magnetic induction principle can be improved by the present invention, energy consumption can be reduced and the structure can be improved. The realization of the magnetic axis key itself has been roughly finalized since the mass production of products in 2019. The specific structural realization of the magnetic axis key is already common sense knowledge. Unless otherwise specified in the present invention, it is not limited to a specific implementation method. Moreover, even if it is an improvement on the magnetic axis key itself, it does not affect the application of the logic of controlling the working state of the magnetic sensor in the present invention.

[0012] Furthermore, when the magnetic axis button is not pressed, the switch is in an open / closed state, at which time the magnetic sensor is in a non-working state; when the magnetic axis button is pressed, the switch open / closed state is switched, at which time the magnetic sensor is switched to a working state.

[0013] Furthermore, the magnetic axis button includes a base, an upper cover, an elastic member, and an axis core. The bottom end of the base is connected to the PCB. A guide ring is provided on the inner surface of the base. The upper cover is connected to the base to form an accommodation space. The elastic member is arranged in the accommodation space. A guide column cooperating with the guide ring is provided at the lower end of the axis core. The lower part of the axis core abuts against the elastic member. The upper part of the axis core can slide out of the upper cover. The axis core is connected to a magnetic member. The switch is arranged in the accommodation space. The magnetic sensor is welded on the PCB. The upper cover is buckled with the base. The elastic member is a spring. The upper part of the axis core is a cross axis (also called a cross bone position in the industry). The magnetic member is a magnet. The elastic member is sleeved on the outer side of the guide ring and the guide column. The magnetic sensor can be arranged on the same side or the opposite side of the PCB and the magnetic axis button. The magnetic sensor can be arranged directly below the magnetic member or at the peripheral position of the magnetic member. The structure of the magnetic axis button itself is already well known and will not be further described here.

[0014] Furthermore, the switch is a normally open switch. When the magnetic axis button is not pressed, the switch remains open, and when the magnetic axis button is pressed, the switch is closed. The specific structure of the normally open or normally closed switch is not limited in the present invention, as long as the structure can cooperate with the magnetic axis button to realize normally open or normally closed and switch the open and closed state.

[0015] Furthermore, the switch includes an insulating block arranged on the shaft core, and two conductive sheets arranged on the base, the conductive sheets pass through the base and are electrically connected to the PCB. When the shaft core is not pressed, the insulating block is located between the two conductive sheets, and the switch is in an open state. When the shaft core moves downward, the insulating block moves downward with the shaft core, and the two conductive sheets abut against each other, and the switch is in a closed state.

[0016] Furthermore, at least one of the conductive sheets is an elastic metal sheet.

[0017] Furthermore, the switch includes two conductive sheets arranged on the base, the conductive sheets pass through the base and are electrically connected to the PCB, one of the conductive sheets is a fixed sheet, and the other conductive sheet is a spring sheet. When the shaft core is not pressed, the spring sheet is not in contact with the fixed sheet, and the switch is in an open state. When the shaft core moves downward, the spring sheet abuts against the fixed sheet, and the switch is in a closed state.

[0018] Furthermore, the switch is connected in series to a power supply circuit of the magnetic sensor.

[0019] Furthermore, the switch is electrically connected to one end of a control element. When the switch is closed, the end of the control element electrically connected to the magnetic sensor outputs a signal to switch the magnetic sensor to a working state.

[0020] Furthermore, the switch is a normally closed switch. When the magnetic axis button is not pressed, the switch remains closed, and when the magnetic axis button is pressed, the switch is opened.

[0021] Furthermore, the switch includes an insulating block arranged on the shaft core, and two conductive sheets arranged in the base, the conductive sheets pass through the base and are electrically connected to the PCB. When the shaft core is not pressed, the insulating block is located above the two conductive sheets or between the two conductive sheets, and the two conductive sheets are abutted. At this time, the switch is in a closed state. When the shaft core moves downward, the insulating block moves downward with the shaft core to separate the two conductive sheets. At this time, the switch is in an open state.

[0022] Furthermore, at least one of the conductive sheets is an elastic metal sheet.

[0023] Furthermore, the switch includes two fixed conductive sheets arranged on the base and spaced relatively from each other, and a movable conductive member arranged on the shaft core, the fixed conductive sheet passes through the base and is electrically connected to the PCB, when the shaft core is not pressed, the movable conductive member is located between the two fixed conductive sheets and contacts the two fixed conductive sheets respectively, at which time the switch is in a closed state, when the shaft core moves downward, the movable conductive member moves downward with the shaft core and separates from the two fixed conductive sheets, at which time the switch is in an open state.

[0024] Furthermore, the fixed conductive sheet is an elastic metal sheet.

[0025] Furthermore, when the switch is closed, the control element in the power supply circuit of the magnetic sensor is not conducting, and the power supply circuit cannot normally supply power to the magnetic sensor; when the switch is opened, the control element is conducting, so that the power supply circuit normally supplies power to the magnetic sensor.

[0026] Furthermore, the switch is electrically connected to one end of a control element. When the switch is disconnected, the end of the control element electrically connected to the magnetic sensor outputs a signal to switch the magnetic sensor to a working state.

[0027] On the other hand, the present invention provides a laptop computer, characterized in that the laptop computer is provided with the magnetic axis keyboard of the present invention.

[0028] On the other hand, the present invention provides a magnetic axis button, comprising: a base, a guide ring is provided on the inner surface of the base, an upper cover, the upper cover is connected to the base to form an accommodating space, an elastic member, the elastic member is arranged in the accommodating space, an axis core, a guide column is provided at the lower end of the axis core and cooperates with the guide ring, the lower part of the axis core abuts against the elastic member, the upper part of the axis core can slide out of the upper cover, the axis core is connected to a magnetic member, and is characterized in that a switch for controlling the working state of the magnetic sensor is also provided in the accommodating space.

[0029] Furthermore, the upper cover is buckled with the base, the elastic member is a spring, the upper part of the shaft core is a cross shaft, the magnetic member is a magnet, and the elastic member is sleeved on the outside of the guide ring and the guide column.

[0030] Furthermore, when the shaft core is not pressed, the switch is in an open / closed state, and when the shaft core is pressed, the switch is switched between open / closed states.

[0031] Furthermore, the switch is a normally open switch. When the shaft core is not pressed, the switch remains open, and when the shaft core is pressed, the switch is closed.

[0032] Furthermore, the switch includes an insulating block arranged on the shaft core and two conductive sheets arranged on the base. When the shaft core is not pressed, the insulating block is located between the two conductive sheets, and the switch is in an open state. When the shaft core moves downward, the insulating block moves downward with the shaft core, and the two conductive sheets abut against each other, and the switch is in a closed state.

[0033] Furthermore, at least one of the conductive sheets is an elastic metal sheet.

[0034] Furthermore, the switch includes two conductive sheets arranged on the base, one of which is a fixed sheet and the other is a spring sheet. When the shaft core is not pressed, the spring sheet is not in contact with the fixed sheet, and the switch is in an open state. When the shaft core moves downward, the spring sheet abuts against the fixed sheet, and the switch is in a closed state.

[0035] Furthermore, the switch is a normally closed switch. When the shaft core is not pressed, the switch remains closed, and when the shaft core is pressed, the switch is opened.

[0036] Furthermore, the switch includes an insulating block arranged on the shaft core, and two conductive sheets arranged in the base. When the shaft core is not pressed, the insulating block is located above the two conductive sheets or between the two conductive sheets, and the two conductive sheets are abutted. At this time, the switch is in a closed state. When the shaft core moves downward, the insulating block moves downward with the shaft core to separate the two conductive sheets. At this time, the switch is in an open state.

[0037] Furthermore, at least one of the conductive sheets is an elastic metal sheet.

[0038] Furthermore, the switch includes two fixed conductive sheets arranged relatively spaced apart on the base, and a movable conductive part arranged on the shaft core. When the shaft core is not pressed, the movable conductive part is located between the two fixed conductive sheets and respectively contacts the two fixed conductive sheets. At this time, the switch is in a closed state. When the shaft core moves downward, the movable conductive part moves downward with the shaft core and separates from the two fixed conductive sheets. At this time, the switch is in an open state.

[0039] Furthermore, the fixed conductive sheet is an elastic metal sheet.

[0040] On the other hand, the present invention provides a magnetic axis keyboard, characterized in that the magnetic axis keyboard is provided with the magnetic axis key of the present invention.

[0041] On the other hand, the present invention provides a laptop computer, characterized in that the laptop computer is provided with the magnetic axis key of the present invention.

[0042] On the other hand, the present invention provides a method for reducing the power consumption of a magnetic axis keyboard, characterized in that: when a key of the magnetic axis keyboard is not pressed, the magnetic sensor corresponding to the key is in a non-working state; when a key is pressed, the magnetic sensor corresponding to the key switches to a working state, and the magnetic sensors corresponding to other keys that have not been pressed remain in a non-working state.

[0043] Furthermore, when the button is not pressed, the power supply circuit of the magnetic sensor corresponding to the button is in an open circuit state, and when the magnetic axis button is pressed, the power supply circuit of the magnetic sensor corresponding to the button is switched to a closed circuit state.

[0044] Furthermore, when the button is not pressed, the power supply circuit of the magnetic sensor corresponding to the button inputs an electrical signal so that the magnetic sensor cannot be turned on normally. When the magnetic axis button is pressed, the power supply circuit of the magnetic sensor inputs another electrical signal so that the magnetic sensor switches to a working state.

[0045] Furthermore, the button is provided with a switch for controlling the working state of the magnetic sensor. When the button is pressed, the on / off state of the switch is switched, so that the magnetic sensor corresponding to the button is switched to the working state.

[0046] Furthermore, the switch is a normally open switch. When the button is not pressed, the switch remains open. When the button is pressed, the switch closes, so that the magnetic sensor corresponding to the button switches to a working state.

[0047] Furthermore, the switch is a normally closed switch. When the button is not pressed, the switch remains closed. When the button is pressed, the switch is opened, so that the magnetic sensor corresponding to the button is switched to a working state.

[0048] Furthermore, when the button is pressed for a distance exceeding 0.03 mm, the magnetic sensor corresponding to the button switches to a working state.

[0049] Furthermore, when the sensor corresponding to the button is switched to a working state, the keyboard gives a visual prompt or a sound prompt.

[0050] On the other hand, the present invention provides an electronic device provided with a magnetic axis key or a magnetic axis keyboard as described in the present invention. The electronic device may be, for example, a mouse, a computer device such as a notebook computer, or an electronic device such as furniture or household appliances that uses a magnetic axis key or a magnetic axis keyboard.

[0051] The method for controlling the working state of a magnetic sensor and the electronic device of the present invention solve the problems of high energy consumption and difficult heat dissipation in the standby state of an electronic device using a magnetic axis key, and can reduce the size of a power supply battery, thereby improving the overall spatial layout and utilization of the electronic device, improving input stability and the stability of the entire electronic device, and also increasing the service life of the magnetic sensor and the entire electronic device, so that the magnetic axis key can be applied to various portable devices, greatly expanding the scope of use of the magnetic axis key and the magnetic axis keyboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 The first circuit diagram corresponding to the normally open switch

[0053] Figure 2 The second circuit diagram corresponding to the normally open switch

[0054] Figure 3 Exploded diagram of the first structure corresponding to the normally open switch

[0055] Figure 4 Cross-sectional view of the first structure corresponding to the normally open switch

[0056] Figure 5 Exploded diagram of the second structure corresponding to the normally open switch

[0057] Figure 6 Cross-sectional view of the second structure corresponding to the normally open switch

[0058] Figure 7 The first circuit diagram corresponding to the normally closed switch

[0059] Figure 8 The second circuit diagram corresponding to the normally closed switch

[0060] Fig. 9 Exploded diagram of the first structure corresponding to the normally closed switch

[0061] Fig.10 Cross-sectional view of the first structure corresponding to the normally closed switch

[0062] Fig.11 Exploded diagram of the second structure corresponding to the normally closed switch

[0063] Fig.12 Cross-sectional view of the second structure corresponding to the normally closed switch

[0064] 1-upper cover, 2-axis core, 3-magnetic part, 4-elastic part, 5-base, 6-guide ring, 7-first conductive sheet, 8-PCB, 9-elastic card, 10-magnetic sensor, 11-first insulating block, 12-fixed sheet, 13-spring sheet, 14-second insulating block, 15-third conductive sheet, 16-movable conductive part, 17-fixed conductive sheet. DETAILED DESCRIPTION

[0065] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with specific implementation methods.

[0066] On one hand, the invention provides a method for controlling the working state of a magnetic sensor, which is applied to a magnetic axis keyboard, wherein the magnetic axis keyboard includes a magnetic axis key and a magnetic sensor corresponding to the magnetic axis key: when the key is not pressed, the magnetic sensor is in a non-working state, and when the key is pressed, the magnetic sensor switches to a working state. When the magnetic axis key is not pressed, the magnetic sensor is in a non-working state, and the non-working state is a power-off state or a dormant state in which the power consumption is far less than the power consumption of normal operation. At this time, the power consumption of the magnetic sensor itself is 0 or almost 0. When the magnetic axis key is pressed, the magnetic sensor can switch from the non-working state to the working state, and the power consumption of the magnetic sensor is normal power consumption to ensure the normal realization of magnetic induction. The magnetic sensor corresponding to each magnetic axis button on the magnetic axis keyboard does not need to be in a high-power consumption working state in real time. Instead, the magnetic sensor corresponding to the magnetic axis button is activated only when one of the magnetic axis buttons is pressed, which greatly reduces the power consumption of the magnetic axis keyboard. At the same time, the heat generated by the magnetic axis keyboard is also greatly reduced, and the magnetic axis buttons will not have high-temperature sensing failure, affecting the input stability. At the same time, for portable magnetic axis keyboards or electronic devices that rely on batteries, it not only solves the heating problem caused by large-capacity batteries, but also increases the usage time of a single charge or a single battery replacement, greatly improving the use scenarios of magnetic axis buttons or magnetic axis keyboards, and can be widely adapted to portable electronic devices.

[0067] Furthermore, in one embodiment, when the button is not pressed, the power supply circuit of the magnetic sensor is in an open circuit state, and when the magnetic axis button is pressed, the power supply circuit of the magnetic sensor is switched to a closed circuit state. In the open circuit state, the magnetic sensor is not connected to the power supply circuit, and the magnetic sensor will not consume power and will not generate heat.

[0068] Furthermore, in one embodiment, when the button is not pressed, the power supply circuit of the magnetic sensor inputs an electrical signal so that the magnetic sensor cannot be turned on normally. When the magnetic axis button is pressed, the power supply circuit of the magnetic sensor inputs another electrical signal so that the magnetic sensor switches to a working state. The inability to turn on normally indicates that the magnetic sensor is disconnected or in a low-power sleep state. In this embodiment, the power supply of the magnetic sensor can be controlled by a chip. When the button is not pressed, the chip outputs a low level, and the magnetic sensor does not work. When the magnetic axis button is pressed, the chip outputs a high level, and the magnetic sensor works.

[0069] Furthermore, in one embodiment, the magnetic axis button is provided with a switch for controlling the working state of the magnetic sensor. When the magnetic axis button is pressed, the on / off state of the switch is switched, so that the magnetic sensor switches to the working state. The magnetic axis button is provided with a switch linked to the magnetic axis button, and the switch controls the working state of the magnetic sensor. Figure 1 and Figure 2 As shown in the figure, SW1 and SW2 represent switches, which can be normally open switches, that is, the switches are disconnected in the initial state, and the switches are closed when the magnetic axis button is pressed, such as Figure 7 and Figure 8 As shown in the figure, SW3 and SW4 represent switches, which can also be normally closed switches, that is, the switch is closed in the initial state, and the switch is open when the magnetic axis button is pressed. Whether it is a normally open switch or a normally closed switch, when the magnetic axis button is pressed, the switch will switch between open and closed states, and the magnetic sensor will enter the working state. When the magnetic axis button is reset, the switch will switch between open and closed states again, and the magnetic sensor will return from the working state to the non-working state.

[0070] Furthermore, in one embodiment, the switch is a normally open switch, such as Figure 1 and Figure 2 ,for Figure 1 or Figure 2 After a slight change in the existing circuit, the normally open switch can be connected to the power supply GND at the bottom or VDD at the top. When the button is not pressed, the switch remains open, and when the magnetic axis button is pressed, the switch is closed, so that the magnetic sensor switches to the working state. Figure 1 SW1 represents a switch, U1 represents a magnetic sensor 10, and the switch is a normally open switch. When the magnetic axis button is not pressed, the switch remains open, and when the magnetic axis button is pressed, the switch is closed. Figure 2 SW2 represents a switch, U3 represents a magnetic sensor 10, and U2 represents a control chip. The switch is a normally open switch. When the magnetic axis button is not pressed, the switch remains open. When the magnetic axis button is pressed, the switch is closed. U2 can be an MCU, or other chips or other electronic components that can realize corresponding functions. For a magnetic sensor with an EN terminal (enable terminal), the normally open switch described above can directly input a switch closing or opening signal to the EN terminal of the magnetic sensor, that is, when the switch is open, the magnetic sensor is in a low-power standby state. When the switch is closed, the magnetic sensor exits the standby state and starts working.

[0071] Furthermore, in one embodiment, the switch is a normally closed switch, such as Figure 7 and Figure 8 ,for Figure 7 or Figure 8After a slight change in the existing circuit, the normally closed switch can be connected to the power supply GND at the bottom or VDD at the top. When the button is not pressed, the switch remains closed, and when the magnetic axis button is pressed, the switch is opened, so that the magnetic sensor switches to the working state. Figure 7 In the figure, U4 is a magnetic sensor, R1 is a resistor, SW3 is a switch, SW3 is electrically connected to one end of the transistor or field effect tube Q2, SW3 is closed, Q2 is cut off, and the GND pin of U4 is disconnected from the power supply GND, so it does not work. When SW3 is disconnected, Q2 is turned on, the GND pin of U4 is connected to the power supply GND, and U4 works normally. Figure 7 After a slight modification of the circuit, SW3 can also be changed to control the on and off of U4's VDD through a transistor or a field effect transistor. Figure 8 In the figure, U6 is a magnetic sensor, U5 is a control chip, SW4 is a switch, SW4 is electrically connected to an INPUT terminal of U5, and an OUTPUT terminal of U5 is electrically connected to the VDD terminal of U6. Normally, SW4 is closed, the OUTPUT terminal of U5 outputs a low level, and U6 does not work. When SW4 is disconnected, the OUTPUT terminal of U5 outputs a high level, and U6 works normally. Similarly, with a slight change in the circuit, the OUTPUT terminal of U5 can also be changed to control the GND terminal of the magnetic sensor U6. At this time, the magnetic sensor U6 can only work when the OUTPUT terminal of U5 outputs a low level, and it will not work when it outputs a high level. The OUTPUT terminal of U5 can also control the on and off of VDD or GND of U6 through a field effect tube or a triode. Among them, U5 can use an MCU, or other chips or other electronic components that can realize the corresponding functions. For a magnetic sensor with an EN terminal (enable terminal), the normally closed switch described above can directly input a switch closing or opening signal to the EN terminal of the magnetic sensor, that is, when the switch is closed, the magnetic sensor is in a low-power standby state, and when the switch is opened, the magnetic sensor exits the standby state and starts working.

[0072] Furthermore, in one embodiment, when a user uses a button, he or she is accustomed to triggering an input signal at a certain downward pressure position. In order to adapt to the user's actual usage habits and prevent accidental touches from causing the magnetic sensor to be accidentally activated, in this embodiment, when the button is set to be pressed a distance exceeding 0.03 mm, the magnetic sensor switches to a working state.

[0073] Furthermore, in one embodiment, when the magnetic sensor is switched to a working state, the keyboard gives a visual prompt or a sound prompt.

[0074] On the one hand, the present invention also provides a magnetic axis keyboard, including: PCB8 and a magnetic axis key, the magnetic axis key is connected to the PCB8, and a magnetic sensor 10 corresponding to the key is installed on the PCB8, characterized in that: the magnetic axis key includes a switch for controlling the working state of the magnetic sensor 10.

[0075] In the magnetic axis keyboard of this embodiment, when the magnetic axis key is not pressed, the switch is in an open / closed state, at which time the magnetic sensor 10 is in a non-working state. When the magnetic axis key is pressed, the switch is switched to an open / closed state, at which time the magnetic sensor 10 is switched to a working state.

[0076] In a further embodiment, the magnetic axis key can include a base 5, an upper cover 1, an elastic member 4, and a shaft core 2. A magnetic sensor 10 is mounted on the PCB 8. The bottom end of the base 5 is connected to the PCB 8. A guide ring 6 is provided on the inner surface of the base 5. The upper cover 1 is connected to the base 5 to form a receiving space. The elastic member 4 is arranged in the receiving space. A guide column that cooperates with the guide ring 6 is provided at the lower end of the shaft core 2. The lower part of the shaft core 2 abuts against the elastic member 4. The upper part of the shaft core 2 can slide out of the upper cover 1. The shaft core 2 is connected to a magnetic member 3. The switch for controlling the working state of the magnetic sensor 10 is also arranged in the receiving space. The magnetic sensor 10 is welded on the PCB 8. The upper cover 1 is buckled with the base 5. The elastic member 4 is a spring. The upper part of the shaft core 2 is a cross shaft, which can be used to connect keycaps or other parts. The magnetic member 3 is a magnet. The elastic member 4 is sleeved on the outer side of the guide ring 6 and the guide column.

[0077] Further, in one embodiment, if Figure 3 and Figure 4 As shown, in the magnetic axis keyboard provided in this embodiment, the switch is a normally open switch. When the magnetic axis key is not pressed, the switch remains open. When the magnetic axis key is pressed, the switch is closed. The switch includes a first insulating block 11 arranged on the shaft core 2, and two first conductive sheets 7 arranged on the base 5. The first conductive sheets 7 pass through the base 5 and are electrically connected to the PCB 8 through the elastic card 9. When the shaft core 2 is not pressed, the first insulating block 11 is located between the two first conductive sheets 7. At this time, the switch is in an open state. When the shaft core 2 moves downward, the first insulating block 11 moves downward with the shaft core 2, and the two first conductive sheets 7 abut against each other. At this time, the switch is in a closed state. At least one of the first conductive sheets 7 is an elastic metal sheet. The elastic card 9 is also a prior art, and its specific structure, installation and connection method are not repeated here.

[0078] Further, in one embodiment, if Figure 5 , Figure 6As shown, in the magnetic axis keyboard provided in this embodiment, the switch includes two second conductive sheets arranged on the base 5, and the second conductive sheets pass through the base 5 and are electrically connected to the PCB 8. In this embodiment, the second conductive sheets are also connected to the PCB 8 through the elastic card 9. Figure 3 and Figure 4 The connection method shown is similar, one of the second conductive sheets is a fixed sheet 12, and the other second conductive sheet is a spring sheet 13. When the shaft core 2 is not pressed, the spring sheet 13 is not in contact with the fixed sheet 12, and the switch is in an open state. When the shaft core 2 moves downward, the spring sheet 13 abuts against the fixed sheet 12, and the switch is in a closed state. Figure 5 and Figure 6 As shown, in the present embodiment, when the shaft core 2 moves downward, it pushes the spring sheet 13 to partially move and abut against the fixed sheet 12. Of course, the abutment can also be achieved by blocking the spring sheet 13 from moving toward the fixed sheet 12 before the shaft core 2 moves downward, and no longer blocking the spring sheet 13 from moving toward the fixed sheet 12 after the shaft core 2 moves downward, or by other connection forms for achieving abutment, which are not specifically limited in the present invention.

[0079] Further, in one embodiment, if Figure 1 As shown, in the magnetic axis keyboard provided in this embodiment, the switch SW1 is a normally open switch, and the switch SW1 is connected in series to the power supply circuit of the magnetic sensor 10. When the shaft core 2 is not pressed, the power supply circuit of the magnetic sensor 10 is in an open circuit state, and when the magnetic axis key is pressed, the power supply circuit of the magnetic sensor 10 is switched to a closed circuit state. In the open circuit state, the magnetic sensor 10 is not connected to the power supply circuit, and at this time, the magnetic sensor 10 will not generate power consumption and will not generate heat.

[0080] Further, in one embodiment, if Figure 2 As shown, in the magnetic axis keyboard provided in this embodiment, the switch SW2 is a normally open switch, and the switch SW2 is electrically connected to one end of a control chip U2. When the switch SW2 is closed, the end of the control chip U2 electrically connected to the magnetic sensor 10 outputs a signal to switch the magnetic sensor 10 to a working state. In addition, the signal output by U2 can also control the on and off of the working voltage of the magnetic sensor through a transistor or a field effect transistor.

[0081] Furthermore, in one embodiment, in the magnetic axis keyboard provided in this embodiment, the switch is a normally closed switch, and when the axis core 2 is not pressed, the switch remains closed, and when the axis core 2 is pressed, the switch is opened.

[0082] Further, in one embodiment, if Fig. 9 , Fig.10As shown, the switch includes a second insulating block 14 disposed on the shaft core 2, and two third conductive sheets 15 disposed in the base 5, the third conductive sheets 15 pass through the base 5 and are electrically connected to the PCB 8. When the shaft core 2 is not pressed, the second insulating block 14 is located above the two third conductive sheets 15, and the two third conductive sheets 15 are in contact with each other. At this time, the switch is in a closed state. When the shaft core 2 moves downward, the second insulating block 14 moves downward with the shaft core 2 to separate the two third conductive sheets 15. At this time, the switch is in an open state. In some embodiments, the second insulating block 14 can also be initially disposed between the two third conductive sheets 15. When the insulating block 14 moves downward, the third conductive sheets 15 can also be separated to realize the on-off switching of the switch. At least one of the third conductive sheets 15 is an elastic metal sheet.

[0083] In one embodiment, if Fig.11 and Fig.12 As shown, the switch includes two fixed conductive sheets 17 arranged on the base 5 and spaced apart from each other, and a movable conductive member 16 arranged on the shaft core 2. The fixed conductive sheet 17 passes through the base 5 and is electrically connected to the PCB 8. When the shaft core 2 is not pressed, the movable conductive member 16 is located between the two fixed conductive sheets 17 and contacts the two fixed conductive sheets 17 respectively. At this time, the switch is in a closed state. When the shaft core 2 moves downward, the movable conductive member 16 moves downward with the shaft core 2 and separates from the two fixed conductive sheets 17. At this time, the switch is in an open state. The fixed conductive sheet 17 is an elastic metal sheet.

[0084] Further, in one embodiment, if Figure 7 As shown, when the switch SW3 is closed, the control element Q2 in the power supply circuit of the magnetic sensor 10 is not turned on, and the power supply circuit cannot normally supply power to the magnetic sensor 10. When the switch SW3 is disconnected, the control element Q2 is turned on, so that the power supply circuit normally supplies power to the magnetic sensor 10. Q2 can be a triode or a field effect transistor, or other elements that can realize the corresponding control function together, which does not need to be specifically limited in the present invention.

[0085] In one embodiment of this embodiment, Figure 8 As shown, the switch SW4 is electrically connected to one end of a control element U5. When the switch is disconnected, the end of the control element U5 electrically connected to the magnetic sensor 10 outputs a signal to switch the magnetic sensor 10 to a working state. In addition, the signal output by U5 can also be used to control the on and off of the working voltage of the magnetic sensor through a transistor or a field effect transistor. In this embodiment, the control element can be a control chip MCU or other forms of control elements.

[0086] The present invention provides a notebook computer, which uses the magnetic axis keyboard provided in the present invention, can greatly reduce energy consumption and heat generation, and greatly improve the performance and battery life of the notebook computer.

[0087] The invention also provides a magnetic axis key, such as Figures 1 to 12 As shown, the magnetic axis button includes: a base 5, a guide ring 6 is provided on the inner surface of the base 5, an upper cover 1, the upper cover 1 is connected with the base 5 to form an accommodating space, an elastic member 4, the elastic member 4 is arranged in the accommodating space, an axis core 2, a guide column matched with the guide ring 6 is provided at the lower end of the axis core 2, the lower part of the axis core 2 abuts against the elastic member 4, the upper part of the axis core 2 can slide out of the upper cover 1, the axis core 2 is connected to a magnetic member 3, and a switch for controlling the working state of the magnetic sensor 10 is also provided in the accommodating space.

[0088] In this embodiment, the upper cover 1 is buckled with the base 5, the elastic member 4 is a spring, the upper part of the shaft core 2 is a cross shaft, the magnetic member 3 is a magnet, and the elastic member 4 is sleeved on the outer side of the guide ring 6 and the guide column. The cross shaft can be used to connect keycaps or other components.

[0089] In this embodiment, the movement of the shaft core 2 can drive the switch to switch between open and closed states. When the shaft core 2 is not pressed, the switch is in an open and closed state. When the shaft core 2 is pressed, the switch switches between open and closed states. The switch can be a normally open switch or a normally closed switch. Whether it is a normally open switch or a normally closed switch, when the shaft core 2 is pressed, the switch switches between open and closed states, and the magnetic sensor 10 enters a working state. When the shaft core 2 is reset, the switch switches between open and closed states again, and the magnetic sensor 10 is restored from a working state to a non-working state, and the non-working state can be a power-off state or a low-power sleep state.

[0090] like Figure 1 and Figure 2 As shown in the figure, SW1 and SW2 both represent switches, U1 and U3 represent magnetic sensors 10, and U2 represents a control chip. The switch is a normally open switch. When the shaft core 2 is not pressed, the switch remains open, and when the shaft core 2 is pressed, the switch is closed. Figure 3 and Figure 4As shown, the switch includes a first insulating block 11 arranged on the shaft core 2, and two first conductive sheets 7 arranged on the base 5. When the shaft core 2 is not pressed, the first insulating block 11 is located between the two first conductive sheets 7, and the switch is in an open state. When the shaft core 2 moves downward, the first insulating block 11 moves downward with the shaft core 2, and the two first conductive sheets 7 abut against each other, and the switch is in a closed state. In the present embodiment, at least one of the first conductive sheets 7 is an elastic metal sheet. In the initial state, the first insulating block 11 separates the two first conductive sheets 7. At this time, the switch is in an off state. The switch is connected in series to the power supply circuit of the magnetic sensor 10 corresponding to the magnetic axis button. When the switch is off, the magnetic sensor 10 is in an off state, so no power consumption and heat are generated. When the shaft core 2 is pressed, the first insulating block 11 moves downward with the shaft core 2 and no longer separates the two first conductive sheets 7. At this time, under the action of the elastic force, the two first conductive sheets 7 are pressed against each other, and the switch is switched from an off state to a closed state. After the shaft core 2 is released, the shaft core 2 is reset, and the first insulating block 11 moves upward with the shaft core 2 to separate the two first conductive sheets 7 again, and the switch is switched from a closed state to an off state.

[0091] Further, in one embodiment, if Figure 5 and Figure 6 As shown, the switch includes two second conductive sheets arranged on the base 5, one of which is a fixed sheet 12, and the other is a spring sheet 13. When the shaft core 2 is not pressed, the spring sheet 13 is not in contact with the fixed sheet 12, and the switch is in an open state. When the shaft core 2 moves downward, the spring sheet 13 abuts against the fixed sheet 12, and the switch is in a closed state. Figure 5 and Figure 6 As shown, in the present embodiment, when the shaft core 2 moves downward, it pushes the spring sheet 13 to partially move and abut against the fixed sheet 12. Of course, the abutment can also be achieved by blocking the spring sheet 13 from moving toward the fixed sheet 12 before the shaft core 2 moves downward, and no longer blocking the spring sheet 13 from moving toward the fixed sheet 12 after the shaft core 2 moves downward, or by other connection forms for achieving abutment, which are not specifically limited in the present invention.

[0092] Further, in one embodiment, if Figure 1 As shown, SW1 is a switch, one end of SW1 is connected to the positive pole of the power supply and the other end is connected to the VDD power supply pin of the magnetic sensor 10 . SW1 is a normally open switch, and the SW1 is connected in series to the power supply circuit of the magnetic sensor 10 . Figure 1It can also be changed like this: connect one end of SW1 to the GND pin connected to the magnetic sensor 10, and the other end of SW1 to the GND of the power supply. At this time, the VDD of the magnetic sensor 10 is directly connected to the VDD of the power supply. When the button is not pressed, the power supply circuit of the magnetic sensor 10 is in an open circuit state. When the magnetic axis button is pressed, the power supply circuit of the magnetic sensor 10 is switched to a closed state. Figure 1 The circuit can also be changed to use a normally open switch to control the B pole of the transistor (or the G pole of the field effect transistor), and then the transistor (or the field effect transistor) controls the on and off of VDD or GND of the magnetic sensor 10.

[0093] Further, in one embodiment, if Figure 2 As shown, SW2 is a switch, U2 is a control chip, U3 is a magnetic sensor 10, SW2 is a normally open switch, SW2 is electrically connected to the INPUT end of U2, and the OUTPUT end of U2 is connected to the VDD end of the magnetic sensor 10. When SW2 is closed, the OUTPUT end of U2 electrically connected to the magnetic sensor 10 outputs a signal. In this embodiment, the signal is a voltage signal, which makes the magnetic sensor 10 (U3) switch to the working state even if the magnetic sensor 10 (U3) obtains the working voltage. Similarly, the circuit can also be slightly changed, and the OUTPUT end of U2 can also be changed to control the GND end of the magnetic sensor 10 (U3). At this time, the magnetic sensor 10 (U3) can only work when the OUTPUT end of U2 outputs a low level, and it will not work when the output is a high level. In addition, the OUTPUT end of U2 can also control the on and off of the VDD end or GND of U3 through a transistor or a field effect transistor.

[0094] Further, in one embodiment, if Fig. 9 and Fig.10As shown, the switch is a normally closed switch. When the shaft core 2 is not pressed, the switch remains closed. When the shaft core 2 is pressed, the switch is opened. The switch includes a second insulating block 14 arranged on the shaft core 2, and two third conductive sheets 15 arranged in the base 5. When the shaft core 2 is not pressed, the second insulating block 14 is located above the two third conductive sheets 15, and the two third conductive sheets 15 are abutted. At this time, the switch is in a closed state. When the shaft core 2 moves downward, the second insulating block 14 moves downward with the shaft core 2 to separate the two third conductive sheets 15. At this time, the switch is in an open state. In this embodiment, at least one of the third conductive sheets 15 is an elastic metal sheet. In the initial state, the third conductive sheets 15 abut against each other by elastic force. When the shaft core 2 moves downward, the second insulating block 14 is linked to the space between the two third conductive sheets 15 to separate the two third conductive sheets 15 and open the switch. In some embodiments, in addition to setting the second insulating block 14 above the third conductive sheet 15, it can also be initially set at a position between the two third conductive sheets 15. When the insulating block 14 moves downward, the third conductive sheets 15 can also be separated to achieve on and off switching of the switch.

[0095] Further, in one embodiment, if Fig.11 and Fig.12 As shown, the switch is a normally closed switch, and the switch includes two fixed conductive sheets 17 arranged on the base 5 and spaced relatively from each other, and a movable conductive member 16 arranged on the shaft core 2. When the shaft core 2 is not pressed, the movable conductive member 16 is located between the two fixed conductive sheets 17, and contacts with the two fixed conductive sheets 17 respectively. At this time, the switch is in a closed state. When the shaft core 2 moves downward, the movable conductive member 16 moves downward with the shaft core 2 and separates from the two fixed conductive sheets 17. At this time, the switch is in an open state. In this embodiment, the function of the movable conductive member 16 is to connect the two fixed conductive sheets 17. When the movable conductive member 16 moves downward with the shaft core 2, the movable conductive member 16 separates from the two fixed conductive sheets 17, and the switch is opened. Furthermore, in order to ensure that the movable conductive member 16 can contact the two fixed conductive sheets 17 smoothly, as Fig.11 and 12 As shown, the movable conductive member 16 can be in a sheet shape, such as an arch shape. Furthermore, the fixed conductive sheet 17 can be an elastic metal sheet to reduce the requirements for assembly accuracy and processing accuracy.

[0096] The present invention provides a magnetic axis keyboard and a laptop computer, both of which use the magnetic axis keys provided in the present invention, which can greatly reduce energy consumption and heat generation, and greatly improve the performance and battery life of the magnetic axis keyboard and the laptop computer.

[0097] According to one aspect, a method for reducing the power consumption of a magnetic axis keyboard is also provided. When a key of the magnetic axis keyboard is not pressed, the magnetic sensor 10 corresponding to the key is in a non-working state. When a key is pressed, the magnetic sensor 10 corresponding to the key is switched to a working state, and the magnetic sensors 10 corresponding to other keys that have not been pressed remain in a non-working state.

[0098] In one embodiment, when the button is not pressed, the power supply circuit of the magnetic sensor 10 corresponding to the button is in an open circuit state, at which time the magnetic sensor 10 is in a zero power consumption state; when the magnetic axis button is pressed, the power supply circuit of the magnetic sensor 10 corresponding to the button is switched to a closed state, at which time the magnetic sensor 10 is in a normal working power consumption state.

[0099] In one embodiment, when the button is not pressed, the power supply circuit of the magnetic sensor 10 corresponding to the button inputs an electrical signal so that the magnetic sensor 10 cannot be turned on normally, and the magnetic sensor 10 is in a 0 power consumption state or an extremely low power consumption standby state. When the button is pressed, the power supply circuit of the magnetic sensor 10 inputs another electrical signal so that the magnetic sensor 10 switches to a working state.

[0100] Furthermore, in one embodiment, the button is provided with a switch for controlling the working state of the magnetic sensor 10. When the button is pressed, the on / off state of the switch is switched, so that the magnetic sensor 10 corresponding to the button is switched to the working state. The switch may be a normally open switch or a normally closed switch.

[0101] When the switch is a normally open switch, when the button is not pressed, the switch remains open, and when the button is pressed, the switch closes, so that the magnetic sensor 10 corresponding to the button is switched to a working state.

[0102] When the switch is a normally closed switch, when the button is not pressed, the switch remains closed, and when the button is pressed, the switch is opened, so that the magnetic sensor 10 corresponding to the button is switched to a working state.

[0103] Furthermore, in one embodiment, when a user uses a button, he or she is accustomed to triggering an input signal at a certain depressed position. To adapt to the user's actual usage habits and prevent accidental activation of the magnetic sensor 10 due to accidental touches, in this embodiment, when the button is pressed for a distance exceeding 0.03 mm, the magnetic sensor 10 switches to a working state.

[0104] Furthermore, in one embodiment, when the magnetic sensor 10 is switched to the working state, the keyboard gives a visual prompt or a sound prompt. Since each magnetic axis key of the magnetic axis keyboard is an independent switch, in order to facilitate the maintenance of the later players during DIY, in this embodiment, when the magnetic sensor 10 is switched to the working state, the keyboard has built-in indicator lights and / or speakers and other components to give visual and / or sound prompts.

[0105] In addition, the present invention also provides an electronic device, which uses the magnetic axis key or magnetic axis keyboard of the present invention, such as home appliances, kitchen utensils, etc., and is particularly suitable for portable devices such as mice, laptops, etc.

[0106] The above are only preferred embodiments of the present invention. It should be noted that the above preferred embodiments should not be regarded as limiting the present invention, and the protection scope of the present invention should be based on the scope defined by the claims. For ordinary technicians in this technical field, several improvements and modifications can be made without departing from the spirit and scope of the present invention, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A method for controlling the working state of a magnetic sensor, applied to a magnetic axis keyboard, wherein the magnetic axis keyboard comprises a magnetic axis key and a magnetic sensor corresponding to the magnetic axis key, characterized in that: When the button is not pressed, the magnetic sensor is in a non-working state, and when the button is pressed, the magnetic sensor switches to a working state.

2. The method according to claim 1, characterized in that: When the button is not pressed, the power supply circuit of the magnetic sensor is in an open circuit state, and when the button is pressed, the power supply circuit of the magnetic sensor is switched to a closed circuit state; or when the button is not pressed, the power supply circuit of the magnetic sensor inputs an electrical signal so that the magnetic sensor cannot be turned on normally, and when the button is pressed, the power supply circuit of the magnetic sensor inputs another electrical signal so that the magnetic sensor is switched to a working state.

3. The method according to claim 1, characterized in that: The button is provided with a switch for controlling the working state of the magnetic sensor. When the button is pressed, the on / off state of the switch is switched, so that the magnetic sensor switches to the working state. When the button is pressed more than a distance of 0.03 mm, the magnetic sensor switches to the working state. When the sensor switches to the working state, the magnetic axis keyboard gives a visual prompt or a sound prompt.

4. The method according to claim 3, characterized in that: The switch is a normally open switch. When the button is not pressed, the switch remains open. When the button is pressed, the switch closes, so that the magnetic sensor switches to a working state. Alternatively, the switch is a normally closed switch. When the button is not pressed, the switch remains closed. When the button is pressed, the switch opens, so that the magnetic sensor switches to a working state.

5. A magnetic axis keyboard, comprising: PCB and a magnetic axis button, the magnetic axis button is connected to the PCB, a magnetic sensor corresponding to the magnetic axis button is installed on the PCB, and the characteristic is that: the magnetic axis button includes a switch for controlling the working state of the magnetic sensor.

6. The magnetic axis keyboard according to claim 5, characterized in that: When the magnetic axis button is not pressed, the switch is in an open and closed state, at this time, the magnetic sensor is in a non-working state. When the magnetic axis button is pressed, the switch is switched to an open and closed state, at this time, the magnetic sensor is switched to a working state. The magnetic axis button includes a base, an upper cover, an elastic member, and an axis core. The bottom end of the base is connected to the PCB, a guide ring is provided on the inner surface of the base, the upper cover is connected to the base to form an accommodating space, the elastic member is arranged in the accommodating space, a guide column matched with the guide ring is provided at the lower end of the axis core, the lower part of the axis core abuts against the elastic member, the upper part of the axis core can slide out of the upper cover, the axis core is connected to a magnetic member, the switch is arranged in the accommodating space, the magnetic sensor is welded on the PCB, the upper cover is buckled with the base, the elastic member is a spring, the upper part of the axis core is a cross shaft, the magnetic member is a magnet, and the elastic member is sleeved on the outside of the guide ring and the guide column.

7. The magnetic axis keyboard according to claim 6, characterized in that: The switch is a normally open switch. When the magnetic axis button is not pressed, the switch remains open. When the magnetic axis button is pressed, the switch is closed. The switch is connected in series to the power supply circuit of the magnetic sensor. Alternatively, the switch is electrically connected to one end of a control element. When the switch is closed, the end of the control element electrically connected to the magnetic sensor outputs a signal to switch the magnetic sensor to a working state.

8. The magnetic axis keyboard according to claim 7, characterized in that: The switch includes an insulating block arranged on the shaft core and two conductive sheets arranged on the base, the conductive sheets pass through the base and are electrically connected to the PCB. When the shaft core is not pressed, the insulating block is located between the two conductive sheets, and the switch is in an open state at this time. When the shaft core moves downward, the insulating block moves downward with the shaft core, and the two conductive sheets abut against each other, and the switch is in a closed state at this time. At least one of the conductive sheets is an elastic metal sheet.

9. The magnetic axis keyboard according to claim 7, characterized in that: The switch includes two conductive sheets arranged on the base, the conductive sheets pass through the base and are electrically connected to the PCB, one of the conductive sheets is a fixed sheet, and the other conductive sheet is a spring sheet. When the shaft core is not pressed, the spring sheet is not in contact with the fixed sheet, and the switch is in an open state. When the shaft core moves downward, the spring sheet abuts against the fixed sheet, and the switch is in a closed state.

10. The magnetic axis keyboard according to claim 6, characterized in that: The switch is a normally closed switch. When the magnetic axis button is not pressed, the switch remains closed. When the magnetic axis button is pressed, the switch is opened.

11. The magnetic axis keyboard according to claim 10, characterized in that: The switch includes an insulating block arranged on the shaft core and two conductive sheets arranged in the base, the conductive sheets pass through the base and are electrically connected to the PCB. When the shaft core is not pressed, the insulating block is located above the two conductive sheets or between the two conductive sheets, and the two conductive sheets are abutted. At this time, the switch is in a closed state. When the shaft core moves downward, the insulating block moves downward with the shaft core to separate the two conductive sheets. At this time, the switch is in an open state. At least one of the conductive sheets is an elastic metal sheet.

12. The magnetic axis keyboard according to claim 10, characterized in that: The switch includes two fixed conductive sheets arranged on the base and spaced apart from each other, and a movable conductive member arranged on the shaft core. The fixed conductive sheet passes through the base and is electrically connected to the PCB. When the shaft core is not pressed, the movable conductive member is located between the two fixed conductive sheets and contacts the two fixed conductive sheets respectively. At this time, the switch is in a closed state. When the shaft core moves downward, the movable conductive member moves downward with the shaft core and separates from the two fixed conductive sheets. At this time, the switch is in an open state. The fixed conductive sheet is an elastic metal sheet.

13. The magnetic axis keyboard according to claim 10, characterized in that: When the switch is closed, the control element in the power supply circuit of the magnetic sensor is not conducting, and the power supply circuit cannot normally supply power to the magnetic sensor. When the switch is opened, the control element is conducting, so that the power supply circuit normally supplies power to the magnetic sensor.

14. The magnetic axis keyboard according to claim 10, characterized in that: The switch is electrically connected to one end of a control element. When the switch is disconnected, the end of the control element electrically connected to the magnetic sensor outputs a signal to switch the magnetic sensor to a working state.

15. A notebook computer, characterized in that: The laptop computer is provided with the magnetic axis keyboard as described in any one of claims 5 to 14.

16. A magnetic axis key, comprising: A base, wherein the inner surface of the base is provided with a guide ring, An upper cover is connected with the base to form a containing space. an elastic member, wherein the elastic member is arranged in the accommodating space, The shaft core has a guide column matched with the guide ring at the lower end of the shaft core, the lower part of the shaft core abuts against the elastic member, the upper part of the shaft core can slide out of the upper cover, and the shaft core is connected to a magnetic member. It is characterized in that a switch for controlling the working state of the magnetic sensor is also provided in the accommodating space.

17. The magnetic axis key according to claim 16, characterized in that: The upper cover is buckled with the base, the elastic member is a spring, the upper part of the shaft core is a cross shaft, the magnetic member is a magnet, and the elastic member is sleeved on the outside of the guide ring and the guide column. When the shaft core is not pressed, the switch is in an open and closed state, and when the shaft core is pressed, the switch is switched to an open and closed state.

18. The magnetic axis key according to claim 16, characterized in that: The switch is a normally open switch. When the shaft core is not pressed, the switch remains open, and when the shaft core is pressed, the switch is closed.

19. The magnetic axis key according to claim 18, characterized in that: The switch includes an insulating block arranged on the shaft core and two conductive sheets arranged on the base. When the shaft core is not pressed, the insulating block is located between the two conductive sheets, and the switch is in an open state. When the shaft core moves downward, the insulating block moves downward with the shaft core, and the two conductive sheets abut against each other, and the switch is in a closed state. At least one of the conductive sheets is an elastic metal sheet.

20. The magnetic axis key according to claim 18, characterized in that: The switch includes two conductive sheets arranged on the base, one of which is a fixed sheet and the other is a spring sheet. When the shaft core is not pressed, the spring sheet is not in contact with the fixed sheet, and the switch is in an open state. When the shaft core moves downward, the spring sheet abuts against the fixed sheet, and the switch is in a closed state.

21. The magnetic axis key according to claim 16, characterized in that: The switch is a normally closed switch. When the shaft core is not pressed, the switch remains closed, and when the shaft core is pressed, the switch is opened.

22. The magnetic axis key according to claim 21, characterized in that: The switch includes an insulating block arranged on the shaft core and two conductive sheets arranged in the base. When the shaft core is not pressed, the insulating block is located above the two conductive sheets or between the two conductive sheets, and the two conductive sheets are abutted. At this time, the switch is in a closed state. When the shaft core moves downward, the insulating block moves downward with the shaft core to separate the two conductive sheets. At this time, the switch is in an open state. At least one of the conductive sheets is an elastic metal sheet.

23. The magnetic axis key according to claim 21, characterized in that: The switch includes two fixed conductive sheets arranged on the base and spaced relatively from each other, and a movable conductive member arranged on the shaft core. When the shaft core is not pressed, the movable conductive member is located between the two fixed conductive sheets and contacts the two fixed conductive sheets respectively. At this time, the switch is in a closed state. When the shaft core moves downward, the movable conductive member moves downward with the shaft core and separates from the two fixed conductive sheets. At this time, the switch is in an open state. The fixed conductive sheet is an elastic metal sheet.

24. A magnetic axis keyboard, characterized in that: The magnetic axis keyboard is provided with a magnetic axis key as described in any one of claims 16 to 23.

25. A notebook computer, characterized in that: The laptop computer is provided with the magnetic axis key as described in any one of claims 16 to 23.

26. A method for reducing power consumption of a magnetic axis keyboard, characterized in that: When a key of the magnetic axis keyboard is not pressed, the magnetic sensor corresponding to the key is in a non-working state. When a key is pressed, the magnetic sensor corresponding to the key switches to a working state, and the magnetic sensors corresponding to other keys that have not been pressed remain in a non-working state.

27. The method of claim 26, wherein: When the button is not pressed, the power supply circuit of the magnetic sensor corresponding to the button is in an open circuit state, and when the button is pressed, the power supply circuit of the magnetic sensor corresponding to the button is switched to a closed circuit state.

28. The method of claim 26, wherein: When the button is not pressed, the power supply circuit of the magnetic sensor corresponding to the button inputs an electrical signal so that the magnetic sensor cannot be turned on normally. When the button is pressed, the power supply circuit of the magnetic sensor inputs another electrical signal so that the magnetic sensor switches to a working state.

29. The method of claim 26, wherein: The button is provided with a switch for controlling the working state of the magnetic sensor. When the button is pressed, the on / off state of the switch is switched, so that the magnetic sensor corresponding to the button is switched to the working state; when the button is pressed more than 0.03 mm, the magnetic sensor corresponding to the button is switched to the working state. When the sensor corresponding to the button is switched to the working state, the keyboard gives a visual prompt or a sound prompt.

30. The method of claim 29, wherein: The switch is a normally open switch. When the button is not pressed, the switch remains open. When the button is pressed, the switch closes, so that the magnetic sensor corresponding to the button is switched to a working state; or the switch is a normally closed switch. When the button is not pressed, the switch remains closed. When the button is pressed, the switch opens, so that the magnetic sensor corresponding to the button is switched to a working state.

31. An electronic device, characterized in that: A magnetic axis keyboard as claimed in any one of claims 5 to 14 is provided.

32. An electronic device, characterized in that: A magnetic axis key as described in any one of claims 16 to 23 is provided.

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