Self-charging computer input device

Abstract

The application relates to the field of human-computer interaction, and more particularly to a self-charging computer input device, which comprises a shell, a battery arranged in the shell, a scroll wheel rotatably arranged on the shell and at least partially exposed from the surface of the shell, a transmission mechanism connected with the scroll wheel and used for transmitting power, a generator connected with the transmission mechanism, the movement of the scroll wheel being transmitted to the generator through the transmission mechanism, a rectification and voltage stabilization module connected with the electrode of the generator and used for converting the current output by the generator into charging current capable of charging the battery, and a charging management module connected with one end of the rectification and voltage stabilization module and with the electrode of the battery and used for controlling whether the battery is in a charging state. Compared with the prior art, the scroll wheel can charge the battery no matter which direction the scroll wheel rotates, and the convenient use of the self-charging computer input device is improved.

Description

Technical Field

[0001] This invention relates to the field of human-computer interaction, and more specifically to peripheral wireless input devices for computers. Examples include computer mice, keyboards, and smart wearable devices; more specifically, it relates to a self-charging computer input device. Background Technology

[0002] Wireless input devices such as computer mice and keyboards are widely used as important human-computer interaction tools, offering portability and convenience. However, poor battery life affects their usability. Despite continuous improvements in battery technology, most modern peripherals require charging cables to periodically recharge their internal rechargeable batteries, which often fails to achieve the purpose of wireless use. Whether for everyday document processing and web browsing, or for sophisticated graphic design and complex gaming, users are increasingly reliant on wireless input devices, leading to higher demands for their battery life and ease of use.

[0003] Taking wireless mice as an example, most mainstream wireless mice currently rely on built-in lithium batteries or dry cell batteries for power. Although low-power chip technology and energy-saving algorithms have extended battery life to some extent, the power supply issue after the battery is depleted remains a pain point for user experience. For wireless mice using dry cell batteries, users need to buy and replace batteries regularly, which not only increases long-term usage costs, but the heavy metals and chemicals in discarded batteries can also pollute soil and water sources, contradicting the current green and environmentally friendly development concept. While wireless mice using lithium batteries are rechargeable, they must be charged via a wired charger or a dedicated charging dock. This not only requires carrying additional charging accessories, but also causes the mouse to be tethered by the cable during charging, making it unusable. Especially in urgent office or gaming scenarios, a sudden power outage can cause work interruptions or operational errors, causing great inconvenience to users.

[0004] To overcome the limitations of traditional power supply modes, the industry has explored various self-charging technologies for wireless mice. For example, some solutions attempt to integrate solar charging modules, converting ambient light into electricity. However, these solutions are significantly constrained by lighting conditions—charging efficiency drops sharply or even fails to charge effectively in dimly lit indoor environments, at night, or in enclosed spaces. Furthermore, installing solar panels increases the mouse's size, disrupting its compact design and affecting the grip. Another solution utilizes a separate vibration power generation device, generating electricity from the vibrations of the mouse during movement. However, these devices often require complex transmission structures, increasing the mouse's weight and manufacturing cost. Vibration feedback may also affect operational accuracy, and the actual energy conversion efficiency is relatively low, making it difficult to meet the daily charging needs of the battery.

[0005] It's worth noting that among all operations performed with a wireless mouse, scrolling is one of the most frequently used actions. Users navigate quickly through long documents, web pages, and spreadsheets using the scroll wheel; in games, it's often used to switch weapons and adjust the view; and in design software, it's a core component for zooming in and out and precisely selecting objects. Statistics show that the average user scrolls hundreds or even thousands of times a day, and the significant amount of mechanical energy generated in this process has long been wasted through friction, wear, and vibration. If the mechanical energy generated by the scroll wheel could be efficiently converted into electrical energy and stored, it would provide a stable and sustainable power source for the wireless mouse's self-charging.

[0006] However, existing attempts to utilize the kinetic energy of the scroll wheel face numerous technical bottlenecks: some solutions employ simple friction transmission structures, leading to increased scroll wheel rotation resistance and severely impacting the user experience; some solutions have poorly designed transmission ratios, failing to effectively convert the low-speed rotation of the scroll wheel into the high-speed rotation required by the generator, resulting in low energy conversion efficiency; and other solutions lack stable rectification and voltage regulation mechanisms, causing significant fluctuations in the generator's output current and voltage, which can damage the battery and shorten its lifespan. Furthermore, integrating the transmission mechanism, generator, and charging management module within the limited internal space of the mouse, while simultaneously ensuring the mouse's lightweight design and user comfort, is also a significant challenge in the design process.

[0007] Therefore, in response to the problems of insufficient battery life, inconvenient charging, and energy waste in existing wireless mice, it is necessary to develop a self-charging computer input device that can efficiently utilize the energy of the scroll wheel, has a compact structure, does not affect normal operation, and has stable and reliable charging. This would not only improve the user experience and reduce the environmental burden, but also promote the development of self-powered wireless peripheral technology, and has significant practical value and market prospects.

[0008] Chinese utility model patent CN208569575U discloses a wireless mouse with charging function, including a mouse shell, a scroll wheel, and a generator. The scroll wheel is movably mounted on the mouse shell. A first rotating shaft is connected to the left side of the scroll wheel within the inner cavity of the mouse shell. A first bevel gear passes through the left side of the first rotating shaft, and a second bevel gear is mounted to the left side of the first bevel gear. The first and second gears are also connected by gear meshing, thereby driving the rotation of the second gear. The generator is connected to the second gear via a ratchet wheel, and the generator is driven to rotate and generate electricity through gear transmission. A battery is electrically connected to the generator, and the battery is connected to the mouse circuit board via wires, thus providing power to the mouse. This utility model can achieve self-charging of the wireless mouse; however, its scroll wheel can only charge the battery when rotating in one direction, and the fact that the generator and the middle mouse button share a single scroll wheel may result in excessive scroll wheel resistance, leading to a poor user experience. Utility Model Content

[0009] The main objective of this invention is to provide a self-charging computer input device that can be charged regardless of which direction the user rotates the scroll wheel.

[0010] To address the aforementioned technical problems, this invention proposes a self-charging computer input device, comprising: a housing; a battery disposed within the housing; a roller rotatably mounted on the housing, at least a portion of which protrudes from the housing surface; a transmission mechanism connected to the roller for transmitting power; a generator connected to the transmission mechanism, wherein the movement of the roller is transmitted to the generator via the transmission mechanism; a rectifier and voltage regulator module, one end of which is connected to the generator electrode for converting the generator output current into a charging current capable of charging the battery; and a charging management module, one end of which is connected to the rectifier and voltage regulator module and the other end of which is connected to the battery electrode for controlling whether the battery is in a charging state.

[0011] In the above technical solution one, the rectifier and voltage regulator module further includes: a rectifier module for converting the current passing through the rectifier and voltage regulator module into direct current; a supercapacitor for temporarily storing electrical energy; and a voltage regulator module for stabilizing the voltage of the current passing through the rectifier and voltage regulator module at a set value.

[0012] In the aforementioned technical solution one, the transmission mechanism further includes: a first transmission shaft fixedly mounted on the axis of the roller; a first transmission gear fixedly mounted on the first transmission shaft, rotating synchronously with the roller; a second transmission gear meshing with the first transmission gear; a second transmission shaft fixedly mounted on the axis of the second transmission gear; a third transmission gear fixedly mounted on the second transmission shaft, rotating synchronously with the second transmission gear; a fourth transmission gear meshing with the third transmission gear; a third transmission shaft fixedly mounted on the axis of the fourth transmission gear; a fifth transmission gear meshing with the fourth transmission gear; a fourth transmission shaft fixedly mounted on the axis of the fifth transmission gear; a sixth transmission gear fixedly mounted on the fourth transmission shaft, rotating synchronously with the fifth transmission gear; and a seventh transmission gear fixedly mounted on the input shaft of the generator, meshing with the sixth transmission gear.

[0013] In the above-mentioned technical solution one, it further includes: a charging indicator light, which is connected to the charging management module and is used to indicate whether the battery is in a charging state.

[0014] In the first technical solution mentioned above, the scroll wheel is further located on the side of the outer casing and is independent of the middle mouse button scroll wheel.

[0015] Beneficial effects: Compared with existing technologies, the scroll wheel can charge the battery regardless of which direction it rotates, and it does not affect the feel of the middle mouse scroll wheel. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the transmission mechanism and rollers of the present invention;

[0019] Figure 3 This is a schematic diagram of the internal structure of the present invention;

[0020] Figure 4 This is a hardware connection diagram of the present invention;

[0021] Figure 5 This is the charging circuit diagram of the present invention.

[0022] The annotations in the attached figures are explained as follows:

[0023] 1. Housing; 2. Roller; 3. Transmission mechanism; 31. First transmission shaft; 311. First transmission gear; 32. Second transmission shaft; 321. Second transmission gear; 322. Third transmission gear; 33. Third transmission shaft; 331. Fourth transmission gear; 34. Fourth transmission shaft; 341. Fifth transmission gear; 342. Sixth transmission gear; 35. Seventh transmission gear; 4. Battery; 5. Generator; 51. Input shaft; 6. Rectifier and voltage regulator module; 7. Charging management module Detailed Implementation

[0024] Hereinafter, exemplary embodiments according to this application will be described in detail with reference to the accompanying drawings. Obviously, the described embodiments are merely a part of the embodiments of this application, and not all of the embodiments of this application. It should be understood that this application is not limited to the exemplary embodiments described herein. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without inventive effort are within the scope of protection of this invention.

[0025] It should be noted that, as shown in this application and claims, unless the context clearly indicates otherwise, the words "a," "an," "an," and / or "the" do not specifically refer to the singular and may also include the plural. Generally speaking, the terms "comprising" and "including" only indicate the inclusion of explicitly identified steps and elements, and these steps and elements do not constitute an exclusive list; the method or apparatus may also include other steps or elements.

[0026] If the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0027] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0029] This invention proposes a self-charging computer input device.

[0030] The self-charging computer input device of this application will be described in detail below through the following embodiments.

[0031] Example 1:

[0032] like Figure 1 , 3As shown, in this embodiment, a self-charging computer input device, taking a wireless mouse as an example, includes: a housing 1; a battery 4 disposed inside the housing 1; a scroll wheel 2 rotatably disposed on the housing 1, with at least a portion protruding from the surface of the housing 1; a transmission mechanism 3 connected to the scroll wheel 2 for transmitting power; a generator 5 connected to the transmission mechanism 3, the movement of the scroll wheel 2 being transmitted to the generator 5 through the transmission mechanism 3; a rectifier and voltage regulator module 6, one end of which is connected to the electrode of the generator 5 for converting the current output by the generator 5 into a charging current that can charge the battery 4; and a charging management module 7, one end of which is connected to the rectifier and voltage regulator module 6, and the other end of which is connected to the electrode of the battery 4 for controlling whether the battery 4 is in a charging state.

[0033] When the user rotates the roller 2, the rotation of the roller 2 is transmitted to the generator 5 through the transmission mechanism 3, which drives the input shaft 51 of the generator 5 to rotate, so that the generator 5 generates electricity. The current generated by the generator 5 is connected to the rectifier and voltage regulator module 6 through the wire, and is converted into DC current that meets the rated charging voltage requirements of the battery 4. Then it enters the charging management module 7, which determines whether to charge the battery 4 according to the battery power status.

[0034] Example 2:

[0035] This embodiment is a further improvement based on Embodiment 1.

[0036] like Figure 5 As shown, in this embodiment,

[0037] The rectifier and voltage regulator module 6 includes: a rectifier module for converting the current passing through the rectifier and voltage regulator module 6 into direct current; a supercapacitor for temporarily storing electrical energy; and a voltage regulator module for stabilizing the voltage of the current passing through the rectifier and voltage regulator module 6 at a set value.

[0038] The current generated by generator 5 is converted into direct current in a set direction by the rectifier module and temporarily stored in the supercapacitor. At the same time, it ensures that the current entering the voltage regulator module through the supercapacitor is direct current. The direct current flowing out of the capacitor enters the voltage regulator module, and its voltage is converted into a voltage that meets the set value.

[0039] Example 3:

[0040] This embodiment is a further improvement based on Embodiment 1.

[0041] like Figure 2 As shown, in this embodiment,

[0042] The transmission mechanism 3 includes: a first transmission shaft 31, which is fixedly mounted on the axis of the roller 2; a first transmission gear 311, which is fixedly mounted on the first transmission shaft 31 and rotates synchronously with the roller 2; a second transmission gear 321, which meshes with the first transmission gear 311; a second transmission shaft 32, which is fixedly mounted on the axis of the second transmission gear 321; a third transmission gear 322, which is fixedly mounted on the second transmission shaft 32 and rotates synchronously with the second transmission gear 321; and a fourth transmission gear 331, which meshes with the third transmission gear 321. The transmission gear 322 is engaged; the third transmission shaft 33 is fixedly mounted on the axis of the fourth transmission gear 331; the fifth transmission gear 341 is engaged with the fourth transmission gear 331; the fourth transmission shaft 34 is fixedly mounted on the axis of the fifth transmission gear 341; the sixth transmission gear 342 is fixedly mounted on the fourth transmission shaft 34, and the sixth transmission gear 342 rotates synchronously with the fifth transmission gear 341; the seventh transmission gear 35 is fixedly mounted on the input shaft 51 of the generator 5, and the seventh transmission gear 35 is engaged with the sixth transmission gear 342.

[0043] When the user rotates roller 2, roller 2 drives first transmission gear 311 via first transmission shaft 31. First transmission gear 311 meshes with second transmission gear 321. The rotation of second transmission gear 321 drives third transmission gear 322, which is coaxial with it, to rotate. Third transmission gear 322 meshes with fourth transmission gear 331. Fourth transmission gear 331 meshes with fifth transmission gear 341. The rotation of fifth transmission gear 341 drives sixth transmission gear 342, which is coaxial with it, to drive seventh transmission gear 35, which meshes with it. Seventh transmission gear 35 drives output shaft 51 of generator 5 to rotate. The second transmission gear 321 has fewer teeth than the first transmission gear 311, the fifth transmission gear 341 has fewer teeth than the fourth transmission gear 331, and the seventh transmission gear 35 has fewer teeth than the sixth transmission gear 342. The overall gear ratio of the transmission gears is less than 1, thus increasing the rotational speed.

[0044] Example 4:

[0045] This embodiment is a further improvement based on Embodiment 1. For example... Figure 5 As shown, in this embodiment, a charging indicator light is also included, which is connected to the charging management module 7 and is used to indicate whether the battery 4 is in a charging state. When the charging management module 7 is in the charging state of the battery 4, a portion of the current is output from the charging management module 7 and passes through the charging indicator light to turn it on. When the charging management module 7 is in the stopped charging state, it stops supplying current to the charging indicator light, and the charging indicator light turns off.

[0046] Example 5:

[0047] This embodiment is a further improvement based on Embodiment 1. For example... Figure 1 As shown, in this embodiment, the scroll wheel 2 is located on the side of the outer casing 1, independent of the middle mouse button scroll wheel. The scroll wheel 2 is positioned laterally on the left rear side of the mouse outer casing 1, allowing users to easily recharge the mouse by scrolling the wheel 2 when not in use, without affecting the user experience during normal mouse use.

[0048] Example 6:

[0049] This embodiment is a further improvement based on Embodiment 1. For example... Figure 5 As shown, in this embodiment, the rectifier module includes: an AC-DC chip; the charging management module includes: a U1 (4054) lithium battery charging IC, hereinafter referred to as the lithium battery charging IC; the voltage regulator module includes: a voltage regulator capacitor, one end of which is grounded and the other end is connected to the input terminal of the lithium battery charging IC.

[0050] The generator 5 is connected to pin 1 and pin 2 (input terminal) of the rectifier chip at both ends, pin 3 of the rectifier chip is grounded to GND, and pin 4 of the rectifier chip is connected to the fourth pin (input terminal) of the charging management module to supply DC power with a fixed direction.

[0051] The pin connecting the rectifier chip to the charging management module is connected to one end of a 1.5F supercapacitor, and the other end of the 1.5F supercapacitor is grounded. This is used for voltage regulation and temporary energy storage, smoothing voltage fluctuations to ensure the stable operation of subsequent circuits. Even if the roller stops rolling, the capacitor can briefly supply power to subsequent circuits to avoid sudden interruption of the charging process.

[0052] Pin 4 of the lithium battery charging IC is connected to a 10uF capacitor, the other end of which is grounded for voltage regulation. Pin 5 of the lithium battery charging IC is grounded via a 3.3kΩ resistor to set the charging current. Pin 2 is grounded to provide a reference potential. Pin 3 is connected to the positive terminal of the lithium battery. A light-emitting diode and a 1kΩ resistor are connected sequentially between pin 4 and pin 1. When the battery is fully charged, pin 1 outputs a low level to keep the light-emitting diode lit. When the battery is charging, pin 1 continuously switches between high and low levels to make the light-emitting diode blink.

[0053] Among them, the U1 (4054) lithium battery charging IC has overcharge protection and overcurrent protection functions.

[0054] Example 7:

[0055] This embodiment is a further improvement based on Embodiment 5. For example... Figure 5As shown, in this embodiment, the AC voltage generated by the alternator enters pins 1 and 2 of the AD-AC chip for AC-DC conversion, and is output from pins 3 and 4. The DC current charges the capacitor between the rectifier module and the voltage regulator module, which balances the voltage and stores energy. When the capacitor voltage reaches 4.5V or higher, the lithium battery charging IC starts charging the downstream lithium battery. By adjusting the resistor connected to pin 5 of the lithium battery charging IC, the charging current can be adjusted. The LED flashes during charging and remains constantly lit when fully charged, indicating the operating status. When the battery voltage exceeds 3V, the downstream mouse circuit, which requires power, starts operating, thus creating a green and environmentally friendly design that allows for leisure without hindering mouse use.

[0056] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A self-charging computer input device, characterized by include: Outer shell (1); and battery (4), the battery (4) being disposed inside the housing (1); A roller (2) is rotatably mounted on the housing (1), with at least a portion protruding from the surface of the housing (1); A transmission mechanism (3) is connected to the roller (2) and is used to transmit power; A generator (5) has an input shaft (51) connected to the transmission mechanism (3), and the movement of the roller (2) is transmitted to the generator (5) through the transmission mechanism (3); A rectifier and voltage regulator module (6) is connected at one end to the electrode of the generator (5) to convert the current output by the generator (5) into a charging current that can charge the battery (4). The charging management module (7) is connected at one end to the rectifier and voltage regulator module (6) and at the other end to the electrode of the battery (4), and is used to display or control the charging status of the battery (4).

2. The self-charging computer input device according to claim 1, characterized in that, The rectifier and voltage regulator module (6) includes: A rectifier module is used to convert the current passing through the rectifier and voltage regulator module (6) into direct current; Supercapacitors are used for temporary energy storage and voltage stabilization. A voltage regulator module is used to stabilize the voltage of the current passing through the rectifier and voltage regulator module (6) at a set value.

3. The self-charging computer input device according to claim 1, characterized in that, The transmission mechanism (3) includes: A first transmission shaft (31) is fixedly mounted on the axis of the roller (2), and a first transmission gear (311) is mounted on it. The second drive shaft (32) is provided with a second drive gear (321) and a third drive gear (322); The third drive shaft (33) is provided with a fourth drive gear (331); The fourth drive shaft (34) is provided with a fifth drive gear (341) and a sixth drive gear (342); And a seventh transmission gear (35), which is disposed on the input shaft (51); The first transmission gear (311) meshes with the second transmission gear (321), the third transmission gear (322) meshes with the fourth transmission gear (331), the fourth transmission gear (331) meshes with the fifth transmission gear (341), and the sixth transmission gear (342) meshes with the seventh transmission gear (35).

4. The self-charging computer input device according to claim 1, characterized in that, Also includes: The charging indicator light is connected to the charging management module (7) and is used to indicate whether the battery (4) is in a charging state.

5. The self-charging computer input device according to claim 1, characterized in that, The self-charging computer input device is a self-charging wireless mouse, and the scroll wheel (2) is located on the side of the outer shell (1) and is independent of the middle mouse button scroll wheel.

6. The self-charging computer input device according to claim 2, characterized in that, The rectifier module includes an AC-DC chip.

7. The self-charging computer input device according to claim 2, characterized in that, The charging management module includes a lithium battery charging IC, which adopts the TP4054 type lithium battery charging management IC, wherein: Pin 4 is connected to the rectified DC input. Pin 3 is connected to the positive terminal of the lithium battery and outputs charging current. Pin 2 is grounded to provide a reference potential; Pin 1 is used for charging status output; Pin 5 sets the charging current via a resistor.

8. The self-charging computer input device according to claim 7, characterized in that, The voltage regulator module includes a voltage regulator capacitor, one end of which is grounded and the other end is connected to the input terminal of the lithium battery charging IC.

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