A key body connecting device and a keyboard using the same
By using the connecting arm and torque module of the key body connecting device, the problems of uneven rebound force and poor stability of the keyboard space key are solved, and a keyboard design with uniform and stable rebound force and long life is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU LING YE INTELLIGENT TECH CO LTD
- Filing Date
- 2025-07-21
- Publication Date
- 2026-08-04
AI Technical Summary
The existing keyboard space bar has uneven rebound force and poor stability, and is prone to fatigue or aging problems after long-term use.
The key body connection device includes a connecting arm and a torque module. One end of the connecting arm is connected to the key body. The torque module consists of a base, a slider, and an elastic element. The protrusion contacts the slider and squeezes the elastic element to ensure the uniformity and stability of the rebound force.
It achieves uniform rebound force of the keyboard space bar, good stability, high structural strength, long service life, and simple and convenient installation.
Smart Images
Figure CN224595420U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of keyboard technology, and more particularly to a key body connecting device and a keyboard using the same. Background Technology
[0002] The responsiveness of keyboard keys directly affects the user's operating experience and input efficiency, especially the space bar, which is used frequently on the keyboard.
[0003] Common mechanical and membrane keyboards use elastic elements (such as metal springs or rubber domes) or scissor-switch mechanisms to achieve the rebound function of the space bar.
[0004] In mechanical keyboards, the spacebar typically uses a stabilizer or balance bar structure to assist in key press stability, while its rebound force mainly relies on the spring inside the switch (such as Cherry MX switches). When the keycap is pressed down, the spring compresses to store energy; after the pressure is released, the spring returns to its original shape and provides the rebound force. However, prolonged use may lead to spring fatigue or metal fatigue, causing a decrease in rebound force or a sticking phenomenon.
[0005] The spacebar on a membrane keyboard relies on the elastic deformation and rebound of a rubber dome. When pressed, the rubber dome collapses and triggers circuit contacts; after release, the rubber dome returns to its original shape due to its own elasticity. This structure is low-cost, but the rubber is prone to aging after long-term use, leading to slow rebound or sticking.
[0006] In addition, some high-end keyboards use a hybrid structure (such as the spring + rubber design of electrostatic capacitive keyboards) or reduce wear by optimizing the keycap material (such as PBT plastic).
[0007] However, existing technologies still suffer from problems such as uneven rebound force, complex structure, or insufficient lifespan. Therefore, there is an urgent need for a space key rebound solution that balances durability, stability, and low cost. Summary of the Invention
[0008] The purpose of this application is to propose a key body connecting device and a keyboard using the same, so as to solve the problems of uneven rebound force and poor stability of the space key in the prior art.
[0009] A key body connecting device includes a connecting arm and a torque module, wherein one end of the connecting arm can be connected to the key body;
[0010] The torque module includes a base, a slider disposed within the base, and an elastic element connected to the slider; the two ends of the connecting arm are rotatably connected to the two ends of the base.
[0011] Corresponding to the position of the slider, a protrusion is provided on the connecting arm, which can contact the slider and compress the elastic element.
[0012] Its beneficial effects are: no matter where the operator presses the key, the rebound force of the key is uniform, the stability is good, the structural strength is high, the service life is long, and the key connecting device can be installed in the keyboard as a separate module, and the installation process is simple and convenient.
[0013] In some embodiments, the base includes:
[0014] First main body section;
[0015] Support arm, the support arm is connected to one end of the first main body, and the support arm has a fastener hole;
[0016] A groove is provided on the first main body;
[0017] A sliding groove is provided at one end of a groove in the first main body;
[0018] The card slot is located at one end of the first main body near the slide groove.
[0019] In some embodiments, the slider includes:
[0020] Second main body section;
[0021] A connecting post, one or more connecting posts are connected to one end of the second main body, and an elastic element can be provided on the connecting post;
[0022] A fixing column is provided at one end of the second main body and on one side of the connecting column;
[0023] The guide part is provided at one end of the second main body. The guide part is set as an inclined surface and the protrusion can contact the guide part.
[0024] Its beneficial effect is that when the operator presses the key, the protrusion can contact the guide and squeeze the elastic element, so that the elastic element can obtain the rebound potential energy.
[0025] In some embodiments, the guide portion is provided with several guide grooves, and lubricant can be added into the guide grooves.
[0026] Its beneficial effect is that by adding lubricant into the guide groove to lubricate the contact between the guide and the protrusion, the service life of both can be extended.
[0027] In some embodiments, the torque module also includes a slider that can be disposed in a groove and whose shape can match the groove, and a fixing post that can slide on the slider.
[0028] In some embodiments, the connecting arm is also provided with a limiting part, which is located on the protruding side and can be engaged in the slot.
[0029] Its beneficial effect is that when the limiting part is engaged in the slot, the rotation angle of the connecting arm relative to the torque module can be limited.
[0030] In some embodiments, the two ends of the connecting arm are respectively provided with a first connecting part and a second connecting part, and the first connecting part and the second connecting part are respectively provided with connecting holes that match the firmware holes, so that the arm can be connected to the first connecting part and the second connecting part respectively.
[0031] In some implementations, the elastic element is a spring.
[0032] A keyboard using a key body connecting device, the keyboard including a lower housing and key bodies, one end of the key body connecting device being disposed on the lower housing, and the other end of the key body connecting device being connected to the key bodies. Attached Figure Description
[0033] To more clearly illustrate the technical solutions in the specific embodiments of this application or the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0034] Figure 1 This is a schematic diagram of the key body connection device.
[0035] Figure 2 for Figure 1 Exploded view of the parts.
[0036] Figure 3 This is a schematic diagram of the slider.
[0037] Figure 4 This is a schematic diagram of the base structure.
[0038] Figure 5 This is a cross-sectional structural diagram of the key body connecting device before the operator presses the key body, showing the limiting part and the slot part.
[0039] Figure 6 This is a cross-sectional structural diagram of the limiting part and the slot part of the key body connecting device after the operator presses the key body.
[0040] Figure 7 This is a cross-sectional structural diagram of the protrusion and guide portion of the key body connecting device before the operator presses the key body or after the key body is reset.
[0041] Figure 8 This is a cross-sectional structural diagram of the protrusion and guide portion of the key body connecting device after the operator presses the key body or before the key body is reset.
[0042] Figure 9 A schematic diagram of the keyboard structure using a key-body connection device.
[0043] Figure 10 for Figure 9 Exploded view of the parts.
[0044] Explanation of the reference numerals in the attached diagram:
[0045] 1. Key body connecting device; 2. Lower housing; 3. Key body; 11. Connecting arm; 12. Torque module; 111. Protrusion; 112. Limiting part; 113. First connecting part; 114. Second connecting part; 115. Connecting hole; 121. Base; 122. Slider; 123. Elastic element; 124. Slider; 1211. First main body; 1212. Support arm; 1213. Fixing hole; 1214. Groove; 1215. Slide groove; 1216. Slot; 1221. Second main body; 1222. Connecting post; 1223. Fixing post; 1224. Guide part; 12241. Guide groove; Detailed Implementation
[0046] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only some, not all, of the embodiments of this application, and are used merely to explain this application and are not intended to limit it. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0047] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "front," "rear," "vertical," "horizontal," "inner," "outer," "both ends," "both sides," "bottom," and "top," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the elements referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. In addition, the terms "first," "second," "upper-level," "lower-level," "main," and "secondary," etc., are used for descriptive purposes only and can be simply used to more clearly distinguish different components, and should not be construed as indicating or implying relative importance.
[0048] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection, a direct connection, or an indirect connection through an intermediate medium, or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0049] like Figures 1-2 As shown,
[0050] A key body connecting device 1 includes a connecting arm 11 and a torque module 12, one end of the connecting arm 11 being able to be connected to the key body 3;
[0051] The torque module 12 includes a base 121, a slider 122 disposed in the base 121, and an elastic element 123 connected to the slider 122; the two ends of the connecting arm 11 are rotatably connected to the two ends of the base 121 respectively.
[0052] Corresponding to the position of the slider 122, a protrusion 111 is provided on the connecting arm 11. The protrusion 111 can contact the slider 122 and compress the elastic member 123.
[0053] Its beneficial effects are: no matter where the operator presses the key body 3, the rebound force of the key body 3 is uniform, the stability is good, the structural strength is high, the service life is long, and the key body 3 connecting device 1 can be installed in the keyboard as a separate module, and the installation process is simple and convenient.
[0054] It should be noted that, because the length of the spacebar key 3 is significantly longer than that of other keys on the keyboard, in existing solutions, when an operator presses the spacebar, especially when the pressing area is biased towards the left or right ends of the spacebar, the force applied to the spacebar is unevenly distributed, making it difficult to ensure that the rebound force on the spacebar is uniform and stable. However, in the connecting device 1 of this application, regardless of where the operator presses the spacebar, the force exerted on the torque module 12 by the spacebar through the connecting arm 11 is evenly distributed and stably propelled. Therefore, when the spacebar rebounds and resets, the rebound force received by the spacebar is also uniform and stable.
[0055] like Figures 4-6 As shown,
[0056] Preferably, the base 121 includes:
[0057] First main body section 1211;
[0058] Support arm 1212 is connected to one end of the first main body 1211. The support arm 1212 is provided with a fastener hole 1213. In this embodiment, there are two support arms 1212, which are respectively connected to the left and right ends of the first main body 1211.
[0059] The groove 1214 is provided on the first main body 1211. A positioning post is provided on the side of the groove 1214 near the first main body 1211. One end of the connecting post 1222 can be connected to the positioning post.
[0060] A sliding groove 1215 is provided at one end of a groove 1214 in the first main body 1211;
[0061] The slot 1216 is located in the first main body 1211 at one end near the slide groove 1215.
[0062] like Figure 3 , 7 As shown in Figure 8,
[0063] Preferably, the slider 122 includes:
[0064] Second main body section 1221;
[0065] Connecting post 1222, one or more connecting posts 1222 are connected to one end of the second main body 1221, and elastic member 123 can be provided on the connecting post 1222;
[0066] Fixed column 1223 is provided at one end of the second main body 1221 and on one side of the connecting column 1222. In this embodiment, two fixed columns 1223 are provided, which are respectively connected to the left and right ends of the second main body 1221.
[0067] The guide portion 1224 is provided at one end of the second main body portion 1221. The guide portion 1224 is provided as an inclined surface, and the protrusion 111 can contact the guide portion 1224.
[0068] Its beneficial effect is that when the operator presses the key body 3, the protrusion 111 can contact the guide part 1224 and squeeze the elastic element 123, so that the elastic element 123 can obtain the rebound potential energy.
[0069] Preferably, a plurality of guide grooves 12241 are provided on the guide portion 1224, and lubricant can be added into the guide grooves 12241.
[0070] Its beneficial effect is that by adding lubricant into the guide groove 12241 to lubricate the contact between the guide part 1224 and the protrusion 111, the service life of both can be extended.
[0071] like Figure 2 As shown,
[0072] Preferably, the torque module 12 further includes a slider 124, which can be disposed in the slide groove 1215 and the shape of the slider 124 can match the slide groove 1215, and the fixing post 1223 can slide on the slider 124.
[0073] Preferably, the connecting arm 11 is also provided with a limiting part 112, which is located on one side of the protrusion 111 and can be engaged in the slot 1216.
[0074] Its beneficial effect is that when the limiting part 112 is engaged in the slot 1216, the rotation angle of the connecting arm 11 relative to the torque module 12 can be limited.
[0075] Preferably, the two ends of the connecting arm 11 are respectively provided with a first connecting part 113 and a second connecting part 114. The first connecting part 113 and the second connecting part 114 are respectively provided with connecting holes 115 that match the firmware hole 1213. The support arm 1212 can be connected to the first connecting part 113 and the second connecting part 114 respectively.
[0076] Preferably, the elastic element 123 is a spring.
[0077] like Figures 9-10 As shown,
[0078] A keyboard uses a key body connecting device 1. The keyboard includes a lower housing 2 and key bodies 3. One end of the key body connecting device 1 is disposed on the lower housing 2, and the other end of the key body connecting device 1 is connected to the key body 3.
[0079] The following is a detailed description of the specific working process of the key body 3 connecting device 1:
[0080] When the operator presses the key body 3, the connecting arm 11 rotates counterclockwise relative to the torque module 12, and the limiting part 112 moves in the slot 1216. The force acting on the key body 3 is transmitted to the torque module 12 through the connecting arm 11, so that the protrusion 111 contacts the guide part 1224. The protrusion 111 moves from the lowest point to the highest point along the inclined plane to push the guide part 1224 (the length of the inclined plane determines the squeezing force and rebound force of the elastic element 123) to move, and causes the fixed post 1223 to slide on the slider 124. Finally, the sliding key 122 will squeeze the elastic element 123 so that the elastic element 123 has the elastic potential energy to reset.
[0081] When the operator releases the key body 3, the limiting part 112 moves in the slot 1216, the connecting arm 11 rotates clockwise relative to the torque module 12, the protrusion 111 moves from the highest point to the lowest point along the inclined plane, the elastic element 123 resets to push the fixed column 1223 to slide in the opposite direction on the slider 124, the guide part 1224 pushes the protrusion 111 to reset, and finally the key body 3 is reset.
[0082] The above descriptions are merely some embodiments of this application, used only to illustrate the technical solutions of this application, and not to limit it. It should be understood that those skilled in the art can make improvements or substitutions based on the above descriptions without departing from the inventive concept of this application, and all such improvements and substitutions should fall within the protection scope of the appended claims. In this case, all details can be replaced with equivalent elements, and the materials, shapes, and sizes can also be arbitrary.
Claims
1. A key body connection device, characterized by, It includes a connecting arm (11) and a torque module (12), one end of which can be connected to the key body (3); The torque module (12) includes a base (121), a slide (122) disposed in the base (121), and an elastic element (123) connected to the slide (122); the two ends of the connecting arm (11) are rotatably connected to the two ends of the base (121); Corresponding to the position of the slider (122), a protrusion (111) is provided on the connecting arm (11), which can contact the slider (122) and compress the elastic element (123).
2. A key body attachment device according to claim 1, wherein The base (121) includes: First main body (1211); Support arm (1212), the support arm (1212) is connected to one end of the first main body (1211), and the support arm (1212) has a fastener hole (1213); Groove (1214), a groove (1214) is provided on the first main body (1211); A sliding groove (1215) is provided at one end of a groove (1214) in the first main body (1211); The slot (1216) is located in the first main body (1211) at one end near the slide (1215).
3. A key body attachment device according to claim 2, wherein The slider (122) includes: Second main body (1221); A connecting post (1222) is provided, one or more connecting posts (1222) are connected to one end of the second main body (1221), and the elastic element (123) can be provided on the connecting post (1222); A fixing post (1223) is provided at one end of the second main body (1221) and on one side of the connecting post (1222); The guide portion (1224) is provided at one end of the second main body portion (1221). The guide portion (1224) is provided as an inclined surface, and the protrusion (111) can contact the guide portion (1224).
4. A key body attachment device according to claim 3, wherein The guide portion (1224) is provided with several guide grooves (12241), and lubricant can be added into the guide grooves (12241).
5. A key body attachment device according to claim 4, wherein The torque module (12) also includes a slider (124), which can be disposed in a groove (1215) and the shape of the slider (124) can match the groove (1215). The fixing post (1223) can slide on the slider (124).
6. A key body attachment device according to claim 5, wherein The connecting arm (11) is also provided with a limiting part (112), which is located on one side of the protrusion (111) and can be engaged in the slot (1216).
7. A key body attachment device according to claim 6, wherein The connecting arm (11) has a first connecting part (113) and a second connecting part (114) at its two ends respectively. The first connecting part (113) and the second connecting part (114) are respectively provided with connecting holes (115) that match the firmware hole (1213). The support arm (1212) can be connected to the first connecting part (113) and the second connecting part (114) respectively.
8. A key body attachment device according to claim 7, wherein The elastic element (123) is a spring.
9. A keyboard, characterized in that The keyboard uses the key body connecting device (1) according to any one of claims 1 to 8, wherein the keyboard includes a lower housing (2) and key bodies (3), one end of the key body connecting device (1) is disposed on the lower housing (2), and the other end of the key body connecting device (1) is connected to the key body (3).