Key structure based on magnetic axis

Abstract

The utility model provides a key structure based on magnetic shaft silica gel, which comprises an elastic seat, the center of the top of the elastic seat is provided with a limiting seat used for accommodating a magnetic shaft, and the elastic seat deforms after being pressed by external force and restores to the original shape after the external force is removed; the fixed seat is in limiting connection with the outer edge of the bottom of the elastic seat, a through hole is formed in the top of the fixed seat, and the fixed seat is fixed on a keyboard seat; the key cap is clamped in the through hole in a vertically movable manner; the top of the magnetic shaft is connected with the keycap, and the bottom is connected with the limiting seat. The magnetic shaft is combined with the silica gel elastic seat, so that the structure is simplified, the cost is reduced, and the hand feeling, the durability and the reset performance of the key are remarkably improved. The silica gel material has excellent elasticity and anti-fatigue performance, can effectively reduce noise in the press process of the key, and ensures that the key can still keep a good reset effect after being used for a long time. In addition, the stable connection between the magnetic shaft and the key cap further improves the response speed and accuracy of the key, and provides better use experience for users.

Description

Technical Field

[0001] This utility model belongs to the field of keyboard key technology, and in particular relates to a key structure based on a magnetic axis. Background Technology

[0002] As an important tool for human-computer interaction, the design of the keyboard's key structure directly affects the user experience. Traditional keyboard key structures are mainly divided into two types: mechanical switches and membrane switches.

[0003] Mechanical switches use metal springs and contacts to press and reset buttons. While offering a good tactile feel, they are complex, expensive, and prone to metal fatigue or contact oxidation after prolonged use, leading to button malfunction or a deterioration in feel. Furthermore, mechanical switches tend to generate significant noise during pressing, affecting the user's environment.

[0004] Thin-film structures achieve button functions through elastic films and conductive layers. Although they are cheaper, they have a poorer feel, lack the tactile feedback of mechanical switches, and the elastic films are prone to aging after long-term use, leading to button malfunction or unresponsive reset.

[0005] To overcome these problems, some magnetic axis-based button designs have emerged in recent years, utilizing magnetic force to achieve button pressing and reset. However, existing magnetic axis-based button structures typically use rigid materials for support, resulting in a stiff feel and less than ideal reset performance. Furthermore, rigid materials are prone to wear or deformation after prolonged use, affecting the button's stability and lifespan. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, the purpose of this utility model is to provide a key structure based on a magnetic axis, which is mainly used to solve the problems of complex key structure, poor feel, poor durability and high noise in the prior art.

[0007] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0008] This utility model provides a key structure based on a magnetic axis, comprising:

[0009] The elastic seat has a limiting seat at the top center for accommodating the magnetic shaft. The elastic seat deforms after being pressed by an external force and returns to its original shape after the external force is removed.

[0010] A fixing base is connected to the bottom outer edge of the elastic base for limiting, and a through hole is provided on its top. The fixing base is used to fix it on the keyboard base.

[0011] The keycap is movably and snapped into the through hole;

[0012] The magnetic shaft is connected to the keycap at the top and to the limiting seat at the bottom.

[0013] In some embodiments, the elastic seat includes an outer edge, a hemispherical portion, and a boss portion connected in sequence;

[0014] The outer edge is limited and connected to the fixed seat;

[0015] The hemispherical portion has a self-resetting elasticity in the vertical direction;

[0016] The top of the protrusion is provided with a limiting seat.

[0017] In some embodiments, the outer diameter of the boss portion is greater than half of the maximum outer diameter of the hemispherical portion.

[0018] In some embodiments, a slot is provided at the center of the keycap, and the top end of the magnetic shaft is inserted into the slot.

[0019] In some embodiments, the elastic coefficient of the elastic seat ranges from 0.5 to 5 MPa.

[0020] In some embodiments, the Shore hardness of the elastic seat is in the range of 40 to 60 A.

[0021] In some embodiments, the resilient seat is made of silicone.

[0022] Compared with the prior art, the present invention has at least the following beneficial effects:

[0023] This invention proposes a key structure based on a magnetic shaft and silicone. By combining the magnetic shaft with a silicone elastic base, the structure is simplified, costs are reduced, and the feel, durability, and reset performance of the keys are significantly improved. The silicone material possesses excellent elasticity and fatigue resistance, effectively reducing noise during key presses and ensuring good reset performance even after prolonged use. Furthermore, the stable connection between the magnetic shaft and the keycap further enhances the key's response speed and accuracy, providing users with a superior user experience.

[0024] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. Attached Figure Description

[0025] The present invention will be further described with reference to the accompanying drawings, but the embodiments in the drawings do not constitute any limitation on the present invention. For those skilled in the art, other drawings can be obtained based on the following drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of a magnetic axis-based button structure provided in this embodiment.

[0027] Figure 2 This is an internal sectional view of the overall structure of a magnetic axis-based button structure provided in this embodiment.

[0028] Figure 3 This is a schematic diagram of the fixed base in a key structure based on a magnetic shaft provided in this embodiment.

[0029] Figure 4 This is a schematic diagram of the elastic seat in a key structure based on a magnetic shaft provided in this embodiment. Detailed Implementation

[0030] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, when a specific device is described as being located between a first device and a second device, an intermediary device may or may not be present between the specific device and the first or second device. When a specific device is described as being connected to other devices, the specific device may be directly connected to the other devices without an intermediary device, or it may not be directly connected to the other devices but may have an intermediary device.

[0033] Techniques, methods, and equipment known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and equipment should be considered part of the specification.

[0034] The applicant discovered:

[0035] Traditional keyboard key structures are mainly divided into two types: mechanical switches and membrane switches. However, both types of keyboard key structures have their drawbacks. To overcome these problems, some magnetic switch-based key structure designs have emerged in recent years, using magnetic force to achieve key pressing and reset. However, existing magnetic switch-based key structures usually use rigid materials for support, resulting in a stiff feel and less than ideal reset effect. In addition, rigid materials are prone to wear or deformation after long-term use, affecting the stability and lifespan of the keys.

[0036] In view of this, in order to solve the above-mentioned existing problems, refer to Figures 1 to 4 This embodiment provides a key structure based on a magnetic axis, including an elastic seat 1, a fixed seat 2, a keycap 3, and a magnetic axis 4. A limiting seat 11 is provided at the top center of the elastic seat 1 to accommodate at least a portion of the magnetic axis 4. The elastic seat 1 is made of silicone material to ensure good elasticity and durability. The elastic seat 1 includes an outer edge 12, a hemispherical portion 13, and a boss portion 14. The outer edge 12 is connected to the fixed seat 2 for limiting. When the fixed seat 2 is fixed to the keyboard base, the outer edge 12 is placed between the fixed seat 2 and the keyboard base to achieve limiting and fixing of the elastic seat 1. The hemispherical portion 13 has a vertical self-resetting elasticity. When the hemispherical portion 13 is subjected to a vertical pressing force, the hemispherical portion 13 will indent towards the keyboard base. When the external force is removed, it will return to its full state due to the self-resetting elasticity of the hemispherical portion 13. The top of the boss portion 14 is provided with a limiting seat 11, and one end of the magnetic axis 4 is engaged in this limiting seat 11. The outer diameter of the boss portion 14 is greater than half of the maximum outer diameter of the hemispherical portion 13. Preferably, the maximum outer diameter of the hemispherical portion 13 is 12 mm and the outer diameter of the boss portion 14 is 7 mm.

[0037] The top of the mounting base 2 has a through hole 21, and the entire mounting base 2 is fixed to the keyboard base. The keycap 3 is movably locked in the through hole 21, and a slot 31 is provided in the center of its interior. The top of the magnetic switch 4 is inserted into the slot 31. The bottom of the magnetic switch 4 is connected to the limiting seat 11 to ensure a stable connection between the keycap 3 and the elastic seat 1.

[0038] Preferably, the elastic coefficient of the silicone elastic seat 1 is in the range of 0.5 to 5 MPa, which can provide moderate pressing resistance, so that the button feels too hard due to excessive elasticity, and the button reset is not insensitive due to insufficient elasticity.

[0039] The Shore A hardness range of the silicone elastic base 1 is 40 to 60A, which can ensure the durability of the silicone base and avoid poor button feel due to excessive hardness, while also avoiding instability of button structure or unresponsive reset due to excessive softness.

[0040] In one embodiment, a locking point 32 is provided on the top of the keycap 3 facing radially, and the top of the fixing base 2 is provided with at least one slot 22. When the keycap 3 is pressed, the locking point 32 is pushed into the slot 22 to limit the movement and prevent the keycap 3 from rotating during the pressing process.

[0041] Working principle:

[0042] When the user presses keycap 3, keycap 3 drives magnetic shaft 4 downward. Magnetic shaft 4 applies pressure to the limiting seat 11 of elastic seat 1, causing the hemispherical portion 13 of elastic seat 1 to deform. Because elastic seat 1 has good elasticity, the pressing process is smooth and quiet. When the external force is removed, the hemispherical portion 13 of elastic seat 1 returns to its original shape due to its own elasticity, driving magnetic shaft 4 and keycap 3 to reset, achieving automatic key rebound. Since elastic seat 1 is made of silicone, it has excellent durability and fatigue resistance, effectively extending the lifespan of the keys.

[0043] In addition, the magnetic axis 4 and the keycap 3 are connected by a slot 31, which is simple and stable, avoiding the complexity and high cost of traditional mechanical axis structures.

[0044] In summary, compared to existing technologies, the above embodiments provide a key structure based on a magnetic axis and silicone. By combining the magnetic axis 4 with the silicone elastic base 1, the structure is simplified, costs are reduced, and the feel, durability, and reset performance of the key are significantly improved. The silicone material has excellent elasticity and fatigue resistance, effectively reducing noise during key presses and ensuring good reset performance even after long-term use. Furthermore, the stable connection between the magnetic axis 4 and the keycap 3 further improves the key's response speed and accuracy, providing users with a superior user experience.

[0045] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A key structure based on a magnetic axis, characterized in that, include: The elastic seat has a limiting seat at the top center for accommodating the magnetic shaft. The elastic seat deforms when pressed by an external force in the vertical direction and returns to its original shape when the external force is removed. A fixing base is connected to the bottom outer edge of the elastic base for limiting, and a through hole is provided on its top. The fixing base is used to fix it on the keyboard base. The keycap is movably and snapped into the through hole; The magnetic shaft is connected to the keycap at the top and to the limiting seat at the bottom.

2. The key structure based on a magnetic axis as described in claim 1, characterized in that, The elastic seat includes an outer edge, a hemispherical part, and a boss part connected in sequence; The outer edge is limited and connected to the fixed seat; The hemispherical portion has a self-resetting elasticity in the vertical direction; The top of the protrusion is provided with a limiting seat.

3. The key structure based on a magnetic axis as described in claim 2, characterized in that, The outer diameter of the boss portion is greater than half of the maximum outer diameter of the hemispherical portion.

4. The key structure based on a magnetic axis as described in claim 1, characterized in that, The keycap has a slot at its center, and the top of the magnetic shaft is inserted into the slot.

5. A key structure based on a magnetic axis as described in claim 1, characterized in that, The elastic coefficient of the elastic seat ranges from 0.5 to 5 MPa.

6. The key structure based on a magnetic axis as described in claim 1, characterized in that, The Shore hardness range of the elastic seat is 40 to 60 A.

7. A key structure based on a magnetic axis as described in claim 1, characterized in that, The elastic seat is made of silicone.

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