Mouse assembly
By combining the energy acquisition device and energy management module in the wireless mouse and mouse pad, power supply is achieved by using alternating magnetic field energy to solve the problem of frequent battery replacement and wireless charging technology of wireless mouse, and an efficient and environmentally friendly power supply method is achieved.
Patent Information
- Application Number
- CN202311623088.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-11-29
- Publication Date
- 2025-05-30
AI Technical Summary
Wireless mouse needs to frequently replace the battery, and wireless charging technology has problems such as electromagnetic compatibility, heating, charging position, and efficiency.
Design a mouse component, including a wireless mouse and mouse pad, a built-in energy acquisition device and energy management module of the wireless mouse, and an alternately arranged magnetic field in opposite directions. When the wireless mouse slides on the mouse pad, the alternating magnetic field energy is collected by sensing changes in the direction of the magnetic field and converted to DC current for power through the energy management module.
It solves the problem of frequent battery replacement, reduces maintenance costs, and improves user experience; avoids electromagnetic compatibility, heating, charging position, efficiency and other problems of wireless charging; achieves zero power consumption, and meets the development needs of the era of low-carbon and environmental protection.
Smart Images
Figure CN120066290A_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of mouse technology, and in particular to a mouse component. Background Art
[0002] Most wireless mice are powered by batteries, which can generally be used for about 3 months. Therefore, the batteries need to be replaced frequently, which is very inconvenient. In addition, there is no way to know the remaining power, and there is no power warning, which affects the user experience. In order to solve the above problems, the current wireless charging technology mouse system often uses the following power supply methods: using the principle of electromagnetic induction to wirelessly transmit electrical energy from the transmitter to the receiver; or cutting the magnetic flux lines generated by the electromagnetic transmitting coil through a wire to generate current. Although the above two methods get rid of the problem of frequent battery replacement, they also face problems such as electromagnetic compatibility (EMC), heat generation, charging position, and efficiency. Summary of the invention
[0003] The purpose of this application is to provide a mouse component to solve the problem of frequent battery replacement, as well as electromagnetic compatibility, heat generation, charging position, efficiency and other issues of wireless charging.
[0004] To achieve the above-mentioned purpose, the present application provides a mouse assembly, including: a wireless mouse and a mouse pad; the wireless mouse is provided with an energy acquisition device, an energy management module and a wireless mouse function module; the mouse pad is provided with magnetic fields in opposite directions arranged alternately;
[0005] The energy acquisition device is used to collect alternating magnetic field energy by sensing the change in direction of the magnetic field adjacent to the surface of the mouse pad when controlling the wireless mouse to slide on the surface of the mouse pad, and convert the alternating magnetic field energy into electric pulses; the energy management module is used to convert the electric pulses into direct current to power the wireless mouse function module.
[0006] Optionally, the energy acquisition device includes a Wiegand sensor;
[0007] The Wiegand sensor is used to collect the alternating magnetic field energy by sensing the change in direction of the adjacent magnetic field on the surface of the mouse pad when controlling the wireless mouse to slide on the surface of the mouse pad, and convert the alternating magnetic field energy of each cycle into a pair of electrical pulses with symmetrical amplitudes.
[0008] Optionally, the energy acquisition device includes a plurality of the Wiegand sensors.
[0009] Optionally, the energy acquisition device includes a plurality of first Wiegand sensors with different magnetic field thresholds;
[0010] The first Wiegand sensor includes a Wiegand alloy wire and a pickup coil wrapping the Wiegand alloy wire; each of the first Wiegand sensors corresponds to one magnetic field threshold.
[0011] Optionally, multiple first Wiegand sensors are arranged in a direction perpendicular to the mouse pad according to a magnetic field threshold gradient, and the long axis of each first Wiegand sensor is parallel to the mouse pad; the magnetic field threshold of the first Wiegand sensor away from the mouse pad is smaller than the magnetic field threshold of the first Wiegand sensor close to the mouse pad.
[0012] Optionally, a plurality of the first Wiegand sensors are arranged in a direction parallel to the mouse pad, and a long axis of each of the first Wiegand sensors is parallel to the mouse pad.
[0013] Optionally, the energy acquisition device includes a plurality of second Wiegand sensors; the second Wiegand sensors include a plurality of Wiegand alloy wires with different magnetic field thresholds and a pickup coil wrapping the Wiegand alloy wires; each of the second Wiegand sensors corresponds to a plurality of the magnetic field thresholds.
[0014] Optionally, a plurality of the second Wiegand sensors are arranged in a direction perpendicular to the mouse pad, and a long axis of each of the second Wiegand sensors is parallel to the mouse pad.
[0015] Optionally, a plurality of the second Wiegand sensors are arranged in a direction parallel to the mouse pad, and a long axis of each of the second Wiegand sensors is parallel to the mouse pad.
[0016] Optionally, a permanent magnet unit array with S poles and N poles arranged alternately is arranged inside the mouse pad to generate the alternating magnetic fields in opposite directions.
[0017] Optionally, the energy acquisition device is arranged on the inner wall of the shell of the wireless mouse close to the mouse pad.
[0018] A mouse component provided by the present application includes: a wireless mouse and a mouse pad; an energy acquisition device, an energy management module and a wireless mouse functional module are arranged inside the wireless mouse; magnetic fields in opposite directions are arranged alternately inside the mouse pad; the energy acquisition device is used to collect alternating magnetic field energy by sensing the direction change of the adjacent magnetic field on the surface of the mouse pad when controlling the wireless mouse to slide on the surface of the mouse pad, and convert the alternating magnetic field energy into electric pulses; the energy management module is used to convert the electric pulses into direct current to power the wireless mouse functional module.
[0019] Obviously, in this application, an energy acquisition device for collecting ambient alternating magnetic fields and a corresponding energy management module are arranged inside a wireless mouse, and an alternating magnetic field is arranged inside the mouse pad. When the wireless mouse slides on the mouse pad, the change in the magnetic field direction on the surface of the mouse pad can be sensed, thereby collecting the energy of the ambient alternating magnetic field, and then powering the wireless mouse via the energy management module. Compared with the traditional power supply method for wireless mice, the following beneficial effects are achieved: (1) The problem of frequent battery replacement is solved, the maintenance cost is reduced, and the user experience is improved; (2) No active external energy input is required, avoiding problems such as electromagnetic compatibility, heating, charging position, and efficiency of wireless charging; (3) The energy management module directly powers the function modules of the wireless mouse, eliminating the need for additional energy storage components, which not only reduces costs but also is environmentally friendly; (4) Energy can be obtained while in use, eliminating the need to charge first before use; (5) By sliding the wireless mouse relative to the mouse pad to sense the change in the ambient magnetic field direction, the energy collection method is not affected by the mouse movement speed or the key pressing frequency; (6) The overall solution has zero power consumption, meeting the development needs of the era of low-carbon environmental protection. Brief Description of the Drawings
[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained according to the provided drawings without creative efforts.
[0021] Figure 1 Schematic diagram of the connection relationship between various modules inside a wireless mouse provided by an embodiment of the present application;
[0022] Figure 2 Schematic diagram of a Wiegand sensor provided by an embodiment of the present application;
[0023] Figure 3 Structural diagram of a Wiegand sensor provided by an embodiment of the present application;
[0024] Figure 4 Another structural diagram of a Wiegand sensor provided by an embodiment of the present application.
[0025] The description of the reference numerals is as follows:
[0026] 1 - Mouse pad; 11 - Permanent magnet unit; 2 - Wiegand sensor; 21 - Wiegand alloy wire; 22 - Pickup coil. Detailed Embodiments
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the following will clearly and completely describe the technical solutions in the embodiments of this application with reference to the accompanying drawings in the embodiments of this application. Obviously, the described embodiments are some, but not all, of the embodiments of this application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in this application without making creative efforts fall within the scope of protection of this application.
[0028] With the rapid development of information and communication technologies, human society has entered the era of all things connected. To enable information and communication devices to be connected anytime and anywhere, sensor facilities need to be equipped with computing chips with communication functions. Therefore, powering these devices and sensors has become a new challenge. At the same time, various portable devices, such as music players, including Bluetooth headsets and mobile phones, have been growing rapidly. Charging the battery requires users to spend more time and energy.
[0029] As one of the input devices used in a computer graphics environment, the mouse was mainly used by directly connecting to the computer host in the early days. To facilitate operation, wireless mice connected to the computer using wireless communication technology have become the mainstream in current consumption. While bringing convenience, new problems have also been introduced. Such wireless mice generally require a separate power source, including a detachable battery. Therefore, wireless mouse users must inevitably endure the inconvenience of frequently replacing the battery. A wireless mouse powered by a battery can generally be used for about three months. There is no way to know the remaining battery power, nor is there a battery power warning, which affects the user experience.
[0030] To solve the above problems, the power supply methods commonly adopted by current wireless charging technology mouse systems are as follows: technologies that wirelessly transmit electrical energy from a transmitter to a receiver using the principle of electromagnetic induction; or generating current by cutting the magnetic induction lines generated by an electromagnetic emission coil through a wire. Although the above two methods solve the problem of frequent battery replacement, they will also face the following problems: (1) Transmitting energy through electromagnetic waves inevitably introduces electromagnetic compatibility problems, bringing greater difficulty to the design of other electronic components of the device and introducing new costs; (2) The device heating phenomenon caused during the charging process will accelerate the device aging process and reduce the user experience; (3) There are high requirements for the charging position. For example, for electromagnetic induction-based energy transmission, since the transmission and reception are achieved through inductance coils, to achieve the best charging efficiency, it is required that the coils at the transmitting end and the receiving end be strictly aligned, which limits the physical range of device use; (4) The wireless power supply method needs to be completed during the idle time of the device, that is, it cannot be used while charging; (5) The electromagnetic radiation risk and energy utilization efficiency are still questioned. Therefore, this application provides a mouse component. By arranging an energy acquisition device for collecting ambient alternating magnetic field energy and a corresponding energy management module inside the wireless mouse, and arranging an alternating magnetic field inside the mouse pad; when the wireless mouse slides on the mouse pad, it can sense the change in the magnetic field direction on the surface of the mouse pad, thereby collecting ambient alternating magnetic field energy, and then powering the wireless mouse through the energy management module, thus solving the problems of frequent battery replacement, as well as electromagnetic compatibility, heating, charging position, efficiency, etc. of wireless charging.
[0031] Please refer to Figure 1 , Figure 1 which is a schematic diagram of the connection relationship between various modules inside a wireless mouse provided by an embodiment of this application. An embodiment of this application provides a wireless mouse component, which may include: a wireless mouse and a mouse pad 1; an energy acquisition device, an energy management module, and a wireless mouse function module are provided inside the wireless mouse; alternating magnetic fields with opposite directions are arranged inside the mouse pad 1.
[0032] The energy acquisition device is used to collect alternating magnetic field energy by sensing the change in the direction of adjacent magnetic fields on the surface of the mouse pad 1 when controlling the wireless mouse to slide on the surface of the mouse pad 1, and convert the alternating magnetic field energy into electrical pulses; the energy management module is used to convert the electrical pulses into direct current to power the wireless mouse function module.
[0033] This embodiment does not limit the specific structure of the wireless mouse function module, and the specific structure of the wireless mouse function module can be designed according to actual functional requirements. For example, the wireless mouse function module may include, but is not limited to, an LED (Light-Emitting Diode), an image sensor, an MCU (Microcontroller Unit), a digital signal processing circuit, and a communication module.
[0034] This embodiment does not limit the specific structure of the mouse pad 1, as long as it can ensure that opposite magnetic fields are alternately arranged inside the mouse pad 1. For example, a permanent magnet unit 11 array with alternately arranged S poles and N poles can be provided inside the mouse pad 1 to generate opposite magnetic fields arranged alternately.
[0035] This embodiment does not limit the specific type of the energy management module, as long as it can ensure the conversion of electrical pulses into direct current. For example, the energy management module can be an energy management circuit for converting electrical pulses into direct current, or it can be other electrical devices capable of converting electrical pulses into direct current.
[0036] This embodiment does not limit the specific position of the energy acquisition device in the wireless mouse, as long as it can ensure that the energy acquisition device can sense the change in the direction of the adjacent magnetic fields on the surface of the mouse pad 1. For example, in order to sense a stronger magnetic field, the energy acquisition device can be arranged on the inner wall of the wireless mouse housing close to the mouse pad 1.
[0037] This embodiment does not limit the specific type of the energy acquisition device, as long as it can ensure that when the wireless mouse slides on the surface of the mouse pad 1, it can collect the energy of the alternating magnetic field and convert the energy of the alternating magnetic field into electrical pulses. For example, the energy acquisition device can include a Weigand sensor 2. The Weigand sensor 2 is used to collect the energy of the alternating magnetic field by sensing the change in the direction of the adjacent magnetic fields on the surface of the mouse pad 1 when the wireless mouse slides on the surface of the mouse pad 1, and convert the energy of the alternating magnetic field in each cycle into a pair of symmetrically amplitude electrical pulses. Please refer to Figure 2 , Figure 2 which is a schematic diagram of a Weigand sensor provided by an embodiment of the present application. Inside the mouse pad 1 in the figure, a permanent magnet unit 11 array with alternately arranged S poles and N poles is provided (not all permanent magnet units 11 are drawn in the figure). When the wireless mouse is controlled to slide on the surface of the mouse pad 1, when the Weigand sensor 2 senses that the magnetic field direction reverses and the magnetic field magnitude reaches the coercive force of the surface material of the Weigand alloy wire 21, a steep jump will occur in the magnetization curve. At this time, an electrical pulse will be induced in the pickup coil 22 wound around the Weigand alloy wire 21.
[0038] Furthermore, in order to improve the energy acquisition efficiency, multiple Weigand sensors 2 can be included in the energy acquisition device in this embodiment.
[0039] Further, in order to expand the range of magnetic field energy picked up, the energy acquisition device in this embodiment may include a plurality of Wiegand sensors 2 with different magnetic field thresholds. This embodiment does not limit the specific manner of implementing different magnetic field thresholds. For example, the energy acquisition device may include a plurality of first Wiegand sensors with different magnetic field thresholds; the first Wiegand sensor includes a Wiegand alloy wire 21 and a pickup coil 22 wrapping the Wiegand alloy wire 21 (as Figure 3 shown); each first Wiegand sensor corresponds to a magnetic field threshold; alternatively, the energy acquisition device may include a plurality of second Wiegand sensors; the second Wiegand sensor includes a plurality of Wiegand alloy wires 21 with different magnetic field thresholds and a pickup coil 22 wrapping the Wiegand alloy wires 21 (as Figure 4 shown); each second Wiegand sensor corresponds to a plurality of magnetic field thresholds.
[0040] This embodiment does not limit the specific arrangement manner of the first Wiegand sensors. For example, a plurality of first Wiegand sensors may be arranged along the direction perpendicular to the mouse pad 1 according to the magnetic field threshold gradient, and the long axis of each first Wiegand sensor is parallel to the mouse pad 1; the magnetic field threshold of the first Wiegand sensor in the direction away from the mouse pad 1 is less than that of the first Wiegand sensor in the direction close to the mouse pad 1; alternatively, a plurality of first Wiegand sensors may be arranged along the direction parallel to the mouse pad 1, and the long axis of each first Wiegand sensor is parallel to the mouse pad 1.
[0041] This embodiment does not limit the specific arrangement manner of the second Wiegand sensors. For example, a plurality of second Wiegand sensors may be arranged along the direction perpendicular to the mouse pad 1, and the long axis of each second Wiegand sensor is parallel to the mouse pad 1; alternatively, a plurality of second Wiegand sensors may be arranged along the direction parallel to the mouse pad 1, and the long axis of each second Wiegand sensor is parallel to the mouse pad 1.
[0042] Further, in this embodiment, the housing of the wireless mouse may adopt a fully enclosed housing. It should be noted that this embodiment realizes the self-power supply of the wireless mouse by using the technology of recycling the ambient alternating magnetic field energy, replacing the traditional battery power supply method. The housing of the wireless mouse does not need to reserve a battery compartment door, so it can be designed as a fully enclosed waterproof product.
[0043] In addition, it should also be noted that in this embodiment, the alternating magnetic field is arranged inside the mouse pad, and the change in the magnetic field direction on the surface of the mouse pad can be sensed by sliding the wireless mouse on the mouse pad. Compared with the method of changing the ambient magnetic field direction by pressing a button or moving a joystick, this method can avoid the mechanical fatigue problem introduced by moving parts.
[0044] Based on the above embodiments, the present application arranges an energy acquisition device for collecting ambient alternating magnetic fields and a corresponding energy management module in a wireless mouse, and arranges an alternating magnetic field inside the mouse pad; when the wireless mouse slides on the mouse pad, the change in the direction of the magnetic field on the surface of the mouse pad can be sensed, so as to collect ambient alternating magnetic field energy, and then supply power to the wireless mouse through the energy management module. Compared with the traditional power supply method of wireless mice, the following beneficial effects are achieved: (1) The problem of frequent battery replacement is solved, the maintenance cost is reduced, and the user experience is improved; (2) There is no need for active external energy input, avoiding problems such as electromagnetic compatibility, heating, charging position, and efficiency of wireless charging; (3) The energy management module directly supplies power to the wireless mouse function module, without the need to additionally set up energy storage components, which not only reduces costs but also is environmentally friendly; (4) It is possible to obtain energy while in use, without the need to charge first and then use; (5) By sliding the wireless mouse relative to the mouse pad to sense the change in the direction of the ambient magnetic field, the energy collection method is not affected by the mouse movement speed and key pressing frequency; (6) The overall solution has zero power consumption, meeting the development needs of the era of low carbon and environmental protection.
[0045] Please refer to Figure 3 , Figure 3 FIG. 1 is a schematic structural diagram of a Wiegand sensor provided by an embodiment of the present application. An embodiment of the present application provides a wireless mouse assembly capable of picking up gradient magnetic field energy. The mouse assembly may include: a wireless mouse and a mouse pad 1; an energy acquisition device, an energy management module, and a wireless mouse function module are arranged inside the wireless mouse; the energy acquisition device is arranged on the inner wall of the housing of the wireless mouse close to the mouse pad 1; a permanent magnet unit 11 array with alternating S poles and N poles is arranged inside the mouse pad 1 for generating magnetic fields with opposite directions arranged alternately.
[0046] The energy acquisition device includes a plurality of first Wiegand sensors with different magnetic field thresholds; each first Wiegand sensor includes a Wiegand alloy wire 21 and a pickup coil 22 wrapping the Wiegand alloy wire 21; each first Wiegand sensor corresponds to a magnetic field threshold; the plurality of first Wiegand sensors are arranged in a gradient of magnetic field thresholds along a direction perpendicular to the mouse pad 1, and the long axis of each first Wiegand sensor is parallel to the mouse pad 1; the magnetic field threshold of the first Wiegand sensor in the direction away from the mouse pad 1 is less than the magnetic field threshold of the first Wiegand sensor in the direction close to the mouse pad 1.
[0047] The first Wiegand sensor is used to collect alternating magnetic field energy by sensing the change in the direction of adjacent magnetic fields on the surface of the mouse pad 1 when controlling the wireless mouse to slide on the surface of the mouse pad 1, and convert the alternating magnetic field energy of each cycle into a pair of symmetrically amplitude electric pulses; the energy management module is used to convert the electric pulses into direct current to supply power to the wireless mouse function module.
[0048] Based on the above embodiments, according to the gradient magnetic field distribution in which the energy gradually weakens in the direction away from the mouse pad, multiple layers of Weigand sensors corresponding to this magnetic field distribution are arranged. The magnetic field thresholds of the Weigand sensors in each layer gradually decrease in the direction away from the mouse pad, and can pick up the energy of the gradient magnetic field, thereby improving the energy acquisition efficiency. In addition, since this embodiment uses Weigand sensors with multiple magnetic field thresholds, when the Weigand sensors in this embodiment are arranged in a direction parallel to the mouse pad, the tolerance for the magnetization intensity deviation of the permanent magnet in the mouse pad can be increased, thereby reducing the manufacturing cost.
[0049] Please refer to Figure 4 , Figure 4 which is a schematic structural diagram of another Weigand sensor provided by an embodiment of the present application. Another wireless mouse component capable of picking up the energy of the gradient magnetic field is provided in the embodiment of the present application. The mouse component may include: a wireless mouse and a mouse pad 1; an energy acquisition device, an energy management module, and a wireless mouse function module are arranged inside the wireless mouse; the energy acquisition device is arranged on the inner wall of the housing of the wireless mouse close to the mouse pad 1; a permanent magnet unit 11 array with S poles and N poles arranged alternately is arranged inside the mouse pad 1 for generating magnetic fields with opposite directions arranged alternately.
[0050] The energy acquisition device includes multiple second Weigand sensors; each second Weigand sensor includes multiple Weigand alloy wires 21 with different magnetic field thresholds and a pickup coil 22 wrapping the Weigand alloy wires 21; each second Weigand sensor corresponds to multiple magnetic field thresholds; the second Weigand sensors are arranged in a direction parallel to the mouse pad 1, and the long axis of each second Weigand sensor is parallel to the mouse pad 1.
[0051] The second Weigand sensor is used to collect the alternating magnetic field energy by sensing the direction change of the adjacent magnetic fields on the surface of the mouse pad 1 when controlling the wireless mouse to slide on the surface of the mouse pad 1, and convert the alternating magnetic field energy of each cycle into a pair of electrical pulses with symmetric amplitudes; the energy management module is used to convert the electrical pulses into direct current to supply power to the wireless mouse function module.
[0052] Based on the above embodiments, the pick-up coil of the Weigand sensor adopted in the present application wraps multiple Weigand alloy wires. One Weigand sensor can correspond to multiple magnetic field thresholds, which can save space to the greatest extent. Arranging such Weigand sensors in a plane along the direction parallel to the mouse pad can, on the one hand, increase the tolerance to the magnetization intensity deviation of the permanent magnet in the mouse pad, thereby reducing the manufacturing cost; on the other hand, compared with using one Weigand sensor, it can improve the energy acquisition efficiency. In addition, since the Weigand sensor adopted in this embodiment can correspond to multiple magnetic field thresholds, when the Weigand sensors in this embodiment are arranged along the direction perpendicular to the mouse pad, the Weigand sensors at different magnetic field intensity positions can select Weigand wires with different magnetic field thresholds to collect alternating magnetic field energy. Therefore, it can also realize the energy pick-up of the gradient magnetic field, thereby improving the energy acquisition efficiency.
[0053] In this article, specific examples are used to elaborate on the principle and implementation manner of the present application, and the various embodiments are in a progressive relationship. Each embodiment focuses on the differences from other embodiments. For the same or similar parts among the various embodiments, reference can be made to each other. The description of the above embodiments is only used to help understand the method and its core idea of the present application. For those of ordinary skill in the art of this technology, without departing from the principle of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.
[0054] It should also be noted that in this specification, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements not only includes those elements, but also includes other elements not expressly listed, or also includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "including a..." does not exclude the existence of another identical element in the process, method, article or device including the element.
Claims
1. A mouse component, characterized in that, it includes: a wireless mouse and a mouse pad; an energy acquisition device, an energy management module and a wireless mouse function module are arranged inside the wireless mouse; alternating magnetic fields with opposite directions are arranged inside the mouse pad; the energy acquisition device is used for collecting alternating magnetic field energy by sensing the direction change of adjacent magnetic fields on the surface of the mouse pad when controlling the wireless mouse to slide on the surface of the mouse pad, and converting the alternating magnetic field energy into electrical pulses; the energy management module is used for converting the electrical pulses into direct current to supply power to the wireless mouse function module.
2. The mouse component according to claim 1, characterized in that, the energy acquisition device includes a Wiedemann sensor; the Wiedemann sensor is used for collecting the alternating magnetic field energy by sensing the direction change of adjacent magnetic fields on the surface of the mouse pad when controlling the wireless mouse to slide on the surface of the mouse pad, and converting the alternating magnetic field energy of each period into a pair of electrical pulses with symmetric amplitudes.
3. The mouse component according to claim 2, characterized in that, the energy acquisition device includes a plurality of the Wiedemann sensors.
4. The mouse component according to claim 3, characterized in that, the energy acquisition device includes a plurality of first Wiedemann sensors with different magnetic field thresholds; the first Wiedemann sensor includes a Wiedemann alloy wire and a pickup coil wrapping the Wiedemann alloy wire; each first Wiedemann sensor corresponds to one magnetic field threshold.
5. The mouse component according to claim 4, characterized in that, the plurality of first Wiedemann sensors are arranged in a direction perpendicular to the mouse pad along the magnetic field threshold gradient, and the major axis of each first Wiedemann sensor is parallel to the mouse pad; the magnetic field threshold of the first Wiedemann sensor in the direction away from the mouse pad is less than the magnetic field threshold of the first Wiedemann sensor in the direction close to the mouse pad.
6. The mouse component according to claim 4, characterized in that, the plurality of first Wiedemann sensors are arranged in a direction parallel to the mouse pad, and the major axis of each first Wiedemann sensor is parallel to the mouse pad.
7. The mouse component according to claim 3, characterized in that, the energy acquisition device includes a plurality of second Wiedemann sensors; the second Wiedemann sensor includes a plurality of Wiedemann alloy wires with different magnetic field thresholds and a pickup coil wrapping the Wiedemann alloy wires; each second Wiedemann sensor corresponds to a plurality of magnetic field thresholds.
8. The mouse component according to claim 7, characterized in that, the plurality of second Wiedemann sensors are arranged in a direction perpendicular to the mouse pad, and the major axis of each second Wiedemann sensor is parallel to the mouse pad.
9. The mouse component according to claim 7, characterized in that, the plurality of second Wiedemann sensors are arranged in a direction parallel to the mouse pad, and the major axis of each second Wiedemann sensor is parallel to the mouse pad.
10. The mouse component according to claim 1, characterized in that, The mouse pad is internally provided with a permanent magnet unit array in which S poles and N poles are alternately arranged, for generating the magnetic fields with opposite directions that are alternately arranged.
11. The mouse assembly according to claim 1, wherein, the energy acquisition device is arranged on the inner wall of the housing of the wireless mouse close to the mouse pad.