Mechanical keyboard keycap adaptive structure for membrane keyboard

Abstract

The utility model discloses a mechanical keyboard keycap adaptation structure for a membrane keyboard, which belongs to the technical field of keyboard structures, and comprises a key seat, a shaft core and a trigger mechanism, a key assembly through hole is arranged in the center of the key seat, the shaft core is arranged in the key assembly through hole in a sliding fit manner, a limiting part is arranged on the outer side wall of the shaft core in the vertical direction, and the trigger mechanism is arranged in the limiting part. The trigger mechanism is located right below the shaft core so that the shaft core can be pressed downwards and make contact to achieve key point connection, and the trigger mechanism has the elastic reset performance. According to the utility model, the silica gel drum with elastic reset performance is designed, the shaft core is driven upwards to reset the key cap, and the key is pressed downwards and contacted with the conductive film to realize key point connection. The keyboard has the advantages of being compatible with the traditional film keyboard and the mechanical keyboard, light in key pressing hand feeling, small in structure, low in cost and durable.

Description

Technical Field

[0001] The utility model belongs to the technical field of keyboard structures and relates to a mechanical keyboard keycap adaptation structure for a membrane keyboard. Background Art

[0002] With the rapid development of computer technology, as an important input device, the performance and user experience of the keyboard have attracted more and more attention from users.

[0003] Traditional membrane keyboards use three layers of membrane sheets to achieve key functions. There are circuits on both the upper and lower membrane sheets. When the key is not pressed, these circuits are separated. When the key is pressed, the middle isolation layer is pressed down, and the upper and lower circuits come into contact, closing the circuit and generating a signal. Although traditional membrane keyboards have low costs and light key feel, their key life is usually short, about 5 million times, and they often lag behind mechanical keyboards in terms of feel feedback and durability.

[0004] Each key of a mechanical keyboard has an independent mechanical switch (usually called "axis"), and each switch consists of multiple mechanical components, including a spring and a metal contact point. When the key is pressed, the mechanical switch closes the circuit and generates a signal. This makes the mechanical keyboard have better tactile feedback, and the life of each key is longer, usually more than 50 million key presses. Although mechanical keyboards have good key feel and are durable, they have high costs and large volumes and are not suitable for all application scenarios.

[0005] Therefore, how to improve the feel and durability while maintaining the lightness and low cost of the membrane keyboard has become an urgent problem to be solved. Content of the Utility Model

[0006] The utility model provides a mechanical keyboard keycap adaptation structure for a membrane keyboard, aiming to design and develop a keyboard structure that can maintain the lightness and low cost of the membrane keyboard while improving the feel and durability.

[0007] To achieve the above object, the utility model provides a mechanical keyboard keycap adaptation structure for a membrane keyboard, including:

[0008] A key seat, with a key assembly through hole provided at the center of the key seat;

[0009] An axis core, slidably installed in the key assembly through hole, and a limiting portion is constructed in the up and down direction on the outer side wall of the axis core;

[0010] A triggering mechanism, which is located directly below the axis core for the axis core to press down and contact to achieve key point connection, and the triggering mechanism has an elastic reset performance.

[0011] Preferably, a concave slot is provided at the center of the upper part of the shaft core, and the keycap is detachably connected to the shaft core through the concave slot.

[0012] Preferably, the limiting part includes an outward convex upper limit and an outward convex lower limit. An outward convex upper limit is provided on the outer side wall of the upper part of the shaft core, and a stop groove adapted to the upper limit is provided on the upper part of the key seat to stop the downward movement distance of the shaft core. An outward convex lower limit is provided on the outer side wall of the bottom of the shaft core, and the outward convex lower limit is used for snap connection inside the key seat to prevent the shaft core from coming off.

[0013] Preferably, the triggering mechanism includes a conductive film and a silicone drum. A number of silicone drums are provided on the conductive film. The outer surface of the top of the silicone drum is tightly pressed against the bottom surface of the shaft core. A downward flexible contact part is provided inside the top of the silicone drum. Trigger points are provided on the conductive film, and when the flexible contact part touches the trigger points, the key is turned on.

[0014] The beneficial effects of the present invention compared with the prior art:

[0015] The present invention provides a mechanical keyboard keycap adaptation structure for a membrane keyboard, which designs a silicone drum with elastic reset performance to drive the shaft core upward to reset the keycap, and presses down to touch the conductive film to realize key point connection. It has the advantages of light key pressing feel compatible with traditional membrane keyboards and mechanical keyboards, reduced structure, low cost and durability.

[0016] To more clearly illustrate the structural features and functions of the present invention, the present invention will be described in detail below with reference to the drawings and specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic sectional combination structure diagram of the present invention;

[0018] Figure 2 It is a schematic sectional structure diagram of the triggering mechanism in the present invention;

[0019] Figure 3 It is a schematic front view structure diagram of the shaft core in the present invention;

[0020] Figure 4 It is a schematic exploded structure diagram of the keyboard of the present invention;

[0021] Figure 5 It is a schematic partial side view structure diagram of the keyboard of the present invention;

[0022] Figure 6 For Figure 4 the enlarged structure diagram of part A in

[0023] Figure 7 For Figure 4Schematic diagram of the enlarged structure of part B therein;

[0024] Figure 8 is Figure 5 Schematic diagram of the enlarged structure of part C therein;

[0025] Reference numerals:

[0026] 1. Key seat; 2. Key assembly through hole; 3. Shaft core; 4. Limiting part; 5. Trigger mechanism; 6. Concave slot; 7. Keycap; 8. Outer convex upper limit; 9. Outer convex lower limit; 10. Anti-payment groove; 11. Conductive film; 12. Silicone drum; 13. Flexible contact part; 14. Trigger point. Detailed implementation manners

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the description of this application in the specification are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification, claims or drawings of this application are used to distinguish different objects and not to describe a specific order.

[0028] Reference to "embodiment" herein means that a particular feature, structure or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0029] To achieve the above object, an embodiment of the present utility model provides a mechanical keyboard keycap 7 adaptation structure for a membrane keyboard. Referring to Figures 1-8 as shown, it includes: a key seat 1, a shaft core 3, a trigger mechanism 5 and a keycap 7. A key assembly through hole 2 is provided at the center of the key seat 1; the shaft core 3 is slidably installed in the key assembly through hole 2, and a limiting part 4 is constructed on the outer side wall of the shaft core 3 in the up and down directions; an inner concave slot 6 is provided at the center of the upper part of the shaft core 3, and the shaft core 3 is detachably connected with the keycap 7 through the inner concave slot 6; the trigger mechanism 5 is located directly below the shaft core 3 for the shaft core 3 to press and contact to realize key point connection, and the trigger mechanism 5 has elastic reset performance.

[0030] In this embodiment, a trigger mechanism 5 with elastic reset performance is improved and designed based on a traditional membrane keyboard, and the design elements of the keycap 7 of a traditional mechanical keyboard are incorporated therein, so that the key press is light and elastic, the press feedback of the keycap 7 has a sense of paragraph, integrating and compatible with the advantages of both, making the whole key more durable and with lower cost.

[0031] Among them, the limiting part 4 includes an outward convex upper limit 8 and an outward convex lower limit 9. The outer side wall of the upper part of the shaft core 3 is provided with the outward convex upper limit 8, and the upper part of the key seat 1 is provided with a stop groove 10 adapted to the upper limit to stop the downward movement distance of the shaft core 3. The outer side wall of the bottom of the shaft core 3 is provided with the outward convex lower limit 9, and the outward convex lower limit 9 is used for being snap-connected inside the key seat 1 to prevent the shaft core 3 from coming off externally.

[0032] Among them, the trigger mechanism 5 includes a conductive film 11 and a silicone drum 12. A plurality of silicone drums 12 are arranged on the conductive film 11. The outer surface of the top of the silicone drum 12 abuts against the bottom surface of the shaft core 3 tightly. A downward flexible contact part 13 is arranged inside the top of the silicone drum 12. A trigger point 14 is arranged on the conductive film 11. When the flexible contact part 13 abuts against the trigger point 14, the key is turned on. The silicone drum 12 is made of hemispherical silicone material with an internal cavity. After the hemispherical silicone drum 12 is compressed, it can automatically reset elastically. In this way, it can bounce upward to drive the shaft core 3 to bounce back, and can also be compressed downward to drive the flexible contact part 13 to abut against the trigger point 14, realizing the key turn-on.

[0033] Of course, in this embodiment, the keyboard is integrally formed by connecting a plurality of key seats 1 in pairs. Each key seat 1 correspondingly constructs and arranges a shaft core 3. A corresponding silicone drum 12 is arranged directly below each shaft core 3. The silicone drum 12 is located on the conductive film 11 and is in a disconnected contact state. A plurality of trigger points 14 are arranged on the upper surface of the conductive film 11. The lower surface of the conductive film 11 electrically connects the corresponding trigger points 14 to the circuit board of the keyboard. In this way, when a finger presses the keycap 7 to make the shaft core 3 move downward, when the outward convex upper limit 8 moves downward into the stop groove 10, the keycap 7 reaches the maximum downward movement distance. At this time, the flexible contact part 13 presses against the trigger point 14 to enable the circuit board to receive the instruction of the keycap 7 being pressed and contacted; when the finger leaves the keycap 7, under the driving of the elastic reset performance of the silicone drum 12, the shaft core 3 is bounced upward. When the outward convex lower limit 9 moves upward to be snap-connected inside the key seat 1, the shaft core 3 reaches the maximum upward movement distance. At this time, the flexible contact part 13 is separated from the trigger point 14, and the flexible contact part 13 of the silicone drum 12 is disconnected from the conductive film 11, and the circuit board does not receive the instruction of the keycap 7 being contacted.

[0034] In summary, the present utility model provides a mechanical keyboard keycap 7 adaptation structure for a membrane keyboard, which designs a silicone drum 12 with elastic reset performance. The upper driving shaft core 3 is used to reset the keycap 7, and when pressed down, it contacts the conductive film 11 to realize key point connection. It has the advantages of compatible key pressing feel of traditional membrane keyboards and mechanical keyboards, small structure, low cost and durability.

[0035] The technical principle of the present utility model has been described above in combination with specific embodiments, which are only the preferred embodiments of the present utility model. The protection scope of the present utility model is not limited to the above embodiments. Any technical solution within the idea of the present utility model belongs to the protection scope of the present utility model. Those skilled in the art can think of other specific embodiments of the present utility model without creative labor and will fall within the protection scope of the present utility model.

Claims

1. A mechanical keyboard keycap adapting structure for a membrane keyboard, characterized in that: include: A button seat, wherein a button assembly through hole is provided at the center of the button seat; The shaft core is slidably mounted in the button assembly through hole, and a limit portion is formed in the upper and lower directions of the outer wall of the shaft core; The trigger mechanism is located directly below the shaft core for the shaft core to press down and contact to realize key activation, and the trigger mechanism has elastic reset performance.

2. The mechanical keyboard keycap adapting structure for a membrane keyboard according to claim 1, characterized in that: An inner concave slot is provided at the center of the upper part of the shaft core, and a key cap is detachably connected to the shaft core through the inner concave slot.

3. The mechanical keyboard keycap adapting structure for a membrane keyboard according to claim 2, characterized in that: The limiting portion includes an outer convex upper limit and an outer convex lower limit. The outer wall of the upper part of the shaft core is provided with an outer convex upper limit. The upper part of the button seat is provided with a stop groove matched with the upper limit to stop the shaft core from descending. The outer wall of the bottom of the shaft core is provided with an outer convex lower limit. The outer convex lower limit is used to engage with the inside of the button seat to prevent the shaft core from falling out.

4. The mechanical keyboard keycap adapting structure for a membrane keyboard according to claim 3, characterized in that: The trigger mechanism includes a conductive film and a silicone drum. A plurality of silicone drums are arranged on the conductive film. The outer surface of the top of the silicone drum is pressed against the bottom surface of the shaft core. A downward flexible contact portion is arranged on the inner side of the top of the silicone drum. A trigger point is arranged on the conductive film. When the flexible contact portion contacts the trigger point, the key is pressed.

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