Key structure of keyboard
By incorporating magnets and electromagnets, combined with conductive films and flexible caps, the design solves the problems of stiff feel and foreign object accumulation in traditional keyboards, achieving a soft touch and durability, and improving keyboard response speed and user experience.
Patent Information
- Application Number
- CN202422612484.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-28
- Publication Date
- 2025-10-31
- Estimated Expiration
- 2034-10-28
AI Technical Summary
Touch keyboards have a stiff feel, which can cause finger fatigue after prolonged use, and they are also prone to accumulating foreign objects, affecting the user experience.
It utilizes the magnetic interaction between magnet one and magnet two, combined with an electromagnet to adjust the movement of the keycaps, and with the help of a conductive film and elastic caps, it provides a soft key feel and durability.
It improves the keyboard's response speed and stability, reduces finger fatigue, extends its lifespan, and makes it easier to clean, reducing key malfunctions.
Smart Images

Figure CN223501727U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of input device technology, specifically the key structure of a keyboard. Background Technology
[0002] The keyboard, as a crucial instruction and data input device for operating equipment, is widely used in computer technology and information communication. As one of the most common computer input devices, the keyboard is not only widely used in microcomputers but also frequently found in various terminal devices, such as external keyboards for tablets and server consoles. Its main function is to input characters such as English letters, numbers, and punctuation marks into the computer through keystrokes, thereby issuing instructions or inputting data.
[0003] Contact keyboards, as one of the earliest types of keyboards, work by transmitting signals through contact between keys and contacts on a circuit board. However, users often experience a rather stiff feel during operation, which can lead to finger fatigue after prolonged use. Furthermore, due to the gaps between the keys, food scraps, dust, and other small particles can easily get inside and are difficult to clean. These impurities not only affect the keyboard's appearance but can also damage its internal components, causing localized weakening of key tactile feedback and inconsistencies with other keys, thus severely impacting the user experience. To address this issue, the inventors have proposed a new key structure. To overcome these shortcomings of contact keyboards, capacitive keyboards detect key presses by sensing changes in capacitance beneath the keys, offering higher sensitivity and a better feel. Inductive keyboards, on the other hand, transmit signals by sensing pressure or displacement on the key surface, exhibiting greater durability and resistance to contamination. Utility Model Content
[0004] In view of the shortcomings of the above-mentioned technologies, this utility model provides a key structure for a keyboard.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a keyboard key structure, including a keyboard shell, keycaps, grooves, magnet one and magnet two, wherein the keycaps are vertically mounted on the keyboard shell, the grooves are formed inside the keycaps, magnet one is mounted inside the keycaps, and magnet two is mounted at the bottom of magnet one.
[0006] As further explained, the opposing sides of magnet one and magnet two have opposite magnetic properties; an electromagnet is provided below magnet two, and the opposing sides of the electromagnet and magnet two have the same magnetic properties.
[0007] As a further explanation, the second magnet extends outward and is provided with a contraction section, which is located between the second magnet and the electromagnet and is used to contract the keycap.
[0008] As a further explanation, a conductive film is provided extending outward from the electromagnet, and the conductive film is installed at the bottom of the electromagnet.
[0009] As further explained, the conductive film extends outward with an elastic cap, which is installed inside the keyboard housing and is made of silicone.
[0010] As a further explanation, the keycap extends outward and is provided with a retaining edge, which is installed at one end of the keycap.
[0011] As a further explanation, a support frame extends outward from the keyboard housing and is installed at the bottom of the keyboard housing to support the keyboard housing.
[0012] In summary, the present invention has the following beneficial effects: the key structure of the keyboard of the present invention, through the magnetic interaction between magnet one and magnet two, and the adjustment of the attractive or repulsive force of the electromagnet on magnet two, can realize the rapid and stable up and down movement of the keycaps, thereby improving the keyboard's response speed and the stability of the typing experience.
[0013] The electromagnet design below the second magnet, along with the contraction section, provides a gradual and controllable resistance when the key is pressed, making the key feel softer and the feedback clearer, reducing finger fatigue caused by long-term typing.
[0014] The application of conductive film and elastic caps (made of silicone) not only enhances the durability of the button structure and extends its service life, but also maintains a good tactile feel even after long-term use due to the excellent elasticity of the silicone material. At the same time, this design facilitates cleaning and maintenance, reducing button malfunctions caused by dust or debris accumulation. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the key structure of the keyboard of this utility model;
[0016] Figure 2 This is a cross-sectional view of the key structure of the keyboard of this utility model;
[0017] Figure 3 This is a right view of the key structure of the keyboard of this utility model. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0019] like Figure 1-3 As shown, the key structure of the keyboard of this utility model includes a keyboard shell, a keycap keyboard shell; 2, a groove 3, a magnet 5 and a magnet 6, and a keycap keyboard shell; 2 is vertically mounted on the keyboard shell, and the groove 3 is formed in the keycap keyboard shell; inside 2, the magnet 5 is mounted on the keycap keyboard shell; inside 2, the magnet 6 is mounted on the bottom of the magnet 5.
[0020] Magnet 5 and magnet 6 have opposite magnetic properties on their opposite sides; below magnet 6 is electromagnet 8, and the opposite sides of electromagnet 8 and magnet 6 have the same magnetic properties.
[0021] Specifically, when no key presses are applied, the keycap keyboard shell 2 is vertically mounted on the keyboard shell and remains stationary. Magnet 5 is installed inside the keycap keyboard shell 2, while magnet 6 is located at the bottom of magnet 5. The opposing sides of the two magnets have opposite magnetic properties, forming a stable magnetic coupling. At the same time, the electromagnet 8 below magnet 6 has the same magnetic properties as the opposing side of magnet 6, and is in a state of mutual repulsion or equilibrium, maintaining the initial position of the keycap keyboard shell 2.
[0022] The magnet 2 extends outward and is provided with a retractable part 4. The retractable part 4 is located between the magnet 2 6 and the electromagnet 8, and is used to retract the keycap keyboard shell 2.
[0023] Specifically, when the user presses the keycap keyboard shell 2, the keycap keyboard shell 2, along with its internal magnet 5, moves downwards. Due to the magnetic force between magnet 5 and magnet 6, magnet 6 also moves downwards, simultaneously compressing the contraction section 4 located between magnet 6 and electromagnet 8. During this process, the conductive film 9 and the elastic cap 10 (made of silicone) act as a support and buffer structure, absorbing some of the downward pressure and maintaining the integrity of the structure. When magnet 6 approaches electromagnet 8, the magnetic force between them intensifies. At this time, if electromagnet 8 is activated (i.e., energized), the magnetic field it generates will be enhanced or altered, producing a stronger repulsive or attractive force with magnet 6, thereby adjusting the resistance and feedback force during the key press process.
[0024] A conductive film 9 extends outward from the electromagnet 8 and is installed at the bottom of the electromagnet 8. An elastic cap 10 extends outward from the conductive film 9 and is installed inside the keyboard housing. The elastic cap 10 is made of silicone.
[0025] Specifically, when the user releases the keycap keyboard housing 2, the magnetic force between electromagnet 8 and magnet 6, along with the elastic restoring force of the elastic cap 10, causes the keycap keyboard housing 2 and magnet 5 to quickly and accurately return to their initial positions. Magnet 6, under the repulsive force of electromagnet 8, also moves upwards, restoring its original magnetic coupling state. During the pressing and releasing of a key, the conductive film 9 may come into contact with or separate from contacts in the keyboard circuit due to the movement of the key, thereby triggering the transmission of corresponding electrical signals to the computer or other devices to complete character input or command execution.
[0026] The keyboard housing 2 has a retaining edge 7 extending outwards. The retaining edge 7 is installed on one end of the keyboard housing 2. A support frame 11 extends outwards from the bottom of the keyboard housing to support the keyboard housing.
[0027] Specifically, the entire keyboard structure is stably supported by the keyboard shell and the bottom support frame 11, ensuring the stability of the structure under various usage scenarios and reducing misoperation and input errors.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0029] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. The key structure of a keyboard, characterized in that: Including the keyboard casing; Keycaps, which are vertically mounted on the keyboard housing; A groove, wherein the groove is formed inside the keycap; Magnet one, wherein magnet one is installed inside the keycap; Magnet two, which is installed at the bottom of magnet one; The opposing sides of magnet one and magnet two have opposite magnetic properties; an electromagnet is provided below magnet two, and the opposing sides of the electromagnet and magnet two have the same magnetic properties. The second magnet extends outward and is provided with a contraction section, which is located between the second magnet and the electromagnet and is used to contract the keycap. A conductive film extends outward from the electromagnet and is installed at the bottom of the electromagnet. The conductive film extends outwards with an elastic cap, which is installed inside the keyboard housing and is made of silicone.
2. The key structure of the keyboard according to claim 1, characterized in that: The keycap extends outward and is provided with a retaining edge, which is installed at one end of the keycap.
3. The key structure of the keyboard according to claim 1, characterized in that: The keyboard housing extends outwards and is provided with a support frame, which is installed at the bottom of the keyboard housing to support the keyboard housing.