A soundable magnetic shaft structure
By introducing a sound-generating column and guide ring design into the magnetic shaft structure, the problem of magnetic shaft push-button switches not producing sound is solved, achieving crisp pressing sound feedback and high-precision signal transmission, thus improving user experience and structural lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGGUAN CITY KAIHUA ELECTRONICS
- Filing Date
- 2025-06-09
- Publication Date
- 2026-07-10
AI Technical Summary
Existing magnetic axis push-button switches are almost silent when pressed, resulting in weak feedback and a poor user experience.
Design a magnetic shaft structure that can produce sound. The lower end of the guide core forms a sound-producing column. The magnet is embedded in the magnetic mounting groove. The lower end of the sound-producing column strikes the base to produce sound. The vertical movement of the guide core is restricted by the guide ring and the sliding limit groove to ensure the stability of the magnet and the accuracy of signal transmission.
It achieves crisp sound feedback when pressing, improving the user experience, while ensuring the service life of the magnetic shaft structure and the accuracy of signal transmission. All components fit together tightly, resulting in smooth, fast, and stable operation.
Smart Images
Figure CN224480893U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of push-button switch technology, and in particular to a magnetic shaft structure that can produce sound. Background Technology
[0002] A keyboard is a device used to input instructions and data to operate equipment. It also refers to a set of function keys arranged by a system to operate a machine or device. The keyboard is the most commonly used and primary input device, allowing users to input English letters, numbers, punctuation marks, etc., into a computer, thereby issuing commands and inputting data.
[0003] In existing push-button switches, those with a magnetic shaft as the main component have a base mounted on a PCB board, a housing connected to the base, and the shaft and magnet installed inside the housing and base. During use, pressing the shaft causes the magnet to descend, and a Hall effect sensor detects the magnetic field and switches the signal. When the shaft moves upward to reset, the magnet moves upward with the shaft, and the Hall effect sensor detects the magnetic field again and switches the signal once more. However, this design results in the shaft and magnet sliding in contact with the inner surface of the base during pressing, causing the push-button switch to produce almost no sound when the shaft and magnet are pressed down, resulting in weak feedback. Utility Model Content
[0004] To address the aforementioned shortcomings, the purpose of this invention is to provide a magnetic shaft structure capable of producing sound. When the guide core is pressed downwards, it impacts the base, and the magnet is fitted onto the guide core. This achieves a good sound production effect without damaging the magnet and while ensuring transmission accuracy, thereby improving the user experience.
[0005] The technical solution adopted by this utility model to achieve the above objectives is as follows:
[0006] A sound-producing magnetic shaft structure includes a base, a top cover disposed on the base, a guide core movably disposed between the base and the top cover, and an elastic member sleeved between the base and the guide core. It also includes a magnet sleeved on the bottom of the guide core. A magnetic mounting groove is formed at the lower end of the guide core, and a sound-producing column extending towards the base is formed in the middle of the magnetic mounting groove. The magnet is generally in the shape of a circular cylinder, and its entire body is embedded in the magnetic mounting groove, with its hollow portion sleeved around the sound-producing column. The lower end of the sound-producing column passes through the lower end face of the magnet and continues to extend downwards. Its downwardly extending portion strikes the base and produces sound when an external force is applied.
[0007] As a further improvement of this utility model, a guide ring is formed on the base that matches the lower end of the guide core and is closed at the lower end. The lower end of the elastic element is sleeved on the outside of the guide ring. The lower end of the guide core drives the magnet and the sound-emitting column to move up and down inside the guide ring. The lower end of the sound-emitting column strikes the lower end surface inside the guide ring to produce sound.
[0008] As a further improvement of this utility model, at least one first sliding ridge protruding toward the inside of the guide ring is formed on the inner wall of the guide ring.
[0009] As a further improvement of this utility model, the upper inner side of the guide ring is formed with a downward inclined guide surface that extends from the upper outer side to the lower inner side.
[0010] As a further improvement of this utility model, the outer ring at the bottom end of the sound-emitting column is provided with an inclined guide surface that extends inclinedly from the upper outer side to the lower inner side.
[0011] As a further improvement of this utility model, at least one second sliding groove that is recessed inward is formed on the inner wall of the magnetic mounting groove.
[0012] As a further improvement of this utility model, a sliding limiting block is symmetrically formed on the outer side of the lower end of the guide core, and a sliding limiting groove is formed between the upper cover and the base, which extends vertically as a whole and allows the sliding limiting block to slide.
[0013] As a further improvement of this utility model, the sliding limiting groove is provided on the inner wall of the upper cover.
[0014] As a further improvement of this utility model, the sliding limiting groove is disposed inside the base.
[0015] As a further improvement of this utility model, the upper end of the guide core is generally circular, rectangular, or square.
[0016] The beneficial effects of this utility model are as follows:
[0017] The magnetic shaft structure includes a base, a top cover mounted on the base, a guide core movably disposed between the base and the top cover, and an elastic element sleeved between the base and the guide core. It also includes a magnet sleeved on the bottom of the guide core. A magnetic mounting groove is formed at the lower end of the guide core, and a sound-emitting column extending towards the base is formed in the middle of the magnetic mounting groove. The magnet is generally in the shape of a circular cylinder, and its entire body is embedded in the magnetic mounting groove, with its hollow portion sleeved around the sound-emitting column. The lower end of the sound-emitting column passes through the lower end face of the magnet and continues to extend downwards. Its downwardly extending portion strikes the base and produces sound when an external force is applied. This magnetic shaft structure is mounted on the keyboard's circuit board, which is equipped with a Hall element that matches the magnet. When an external force presses the guide core, the guide core moves the magnet and the sound-emitting column mounted on it downwards, pressing the elastic element and causing it to deform. The Hall element senses the magnetic field formed by the magnet and transmits an output signal to the keyboard's circuit board. At the same time, the bottom of the sound-emitting column strikes the base downwards, producing a crisp pressing sound, achieving a good sound effect and improving the user experience. By using a sound-emitting column on the guide core to impact the base, the guide core has high hardness and produces a crisp impact sound. It does not suffer much wear and tear even under prolonged impact use, effectively ensuring the lifespan of the magnetic shaft. The magnet is embedded in the magnetic mounting groove and fitted onto the sound-emitting column, ensuring stable installation and effectively driving the guide core. The lower end of the sound-emitting column passes through the lower end face of the magnet and continues downward. Its downward extension impacts the base under external force to produce sound. This ensures a good sound quality while preventing damage to the magnet from the impact of the sound-emitting column, further guaranteeing the accuracy of signal transmission. The various structures fit together tightly, resulting in smooth, fast, stable, and precise operation. The structure has a long lifespan, excellent sound quality, and the sound performance does not deteriorate with long-term use, effectively enhancing the user experience.
[0018] The above is an overview of the utility model's technical solution. The following description, in conjunction with the accompanying drawings and specific embodiments, will further illustrate the utility model. Attached Figure Description
[0019] Figure 1 This is an overall schematic diagram of the guide core in this utility model when the upper end is square;
[0020] Figure 2 This is a schematic diagram of the structure of the guide core in this utility model when the upper end is square and the top cover is removed;
[0021] Figure 3 This is an exploded view of the upper end of the guide core in this utility model when it is square;
[0022] Figure 4 This is another exploded view of the upper end of the guide core in this utility model being square;
[0023] Figure 5 This is a schematic diagram of the structure of the conductor core and the magnet when the upper end of the conductor core is square in this utility model;
[0024] Figure 6 This is a schematic diagram of the base structure;
[0025] Figure 7 This is a schematic diagram of the overall configuration when the upper end of the conductor core is circular.
[0026] Figure 8 This is a schematic diagram of the upper cover structure when the upper end of the guide core is circular;
[0027] Figure 9 This is a schematic diagram of the structure when the upper end of the conductor core is circular.
[0028] Figure 10 This is a schematic diagram of the structure of a magnet when the upper end of the conductor core is circular.
[0029] Figure 11 This is a schematic diagram of the overall shape when the upper end of the guide core is rectangular.
[0030] Figure 12 This is an exploded view of the conductor core when the upper end is rectangular.
[0031] Figure 13 This is a schematic diagram of the structure of a magnet when the upper end of the conductor core is rectangular.
[0032] In the diagram: 1. Base; 11. Guide ring; 111. Downward tilting guide surface; 12. First sliding edge;
[0033] 2. Top cover; 3. Guide core; 31. Magnetic mounting groove; 311. Second sliding groove; 32. Sound-emitting column; 321. Mounting inclined guide surface; 33. Sliding limit block; 4. Elastic element; 5. Magnet; 6. Sliding limit groove. Detailed Implementation
[0034] To further illustrate the technical means and effects adopted by this utility model to achieve its intended purpose, the specific implementation methods of this utility model will be described in detail below with reference to the accompanying drawings and preferred embodiments.
[0035] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model.
[0036] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0037] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0038] Please refer to Figures 1 to 13 This utility model provides a sound-producing magnetic shaft structure, including a base 1, an upper cover 2 disposed on the base 1, a guide core 3 movably disposed between the base 1 and the upper cover 2, and an elastic member 4 sleeved between the base 1 and the guide core 3. It also includes a magnet 5 sleeved on the bottom of the guide core 3. A magnetic mounting groove 31 is formed at the lower end of the guide core 3, and a sound-producing column 32 extending toward the base 1 is formed in the middle of the magnetic mounting groove 31. The magnet 5 is generally in the shape of a ring cylinder, and its hollow part is sleeved around the sound-producing column 32. The lower end of the sound-producing column 32 passes through the lower end face of the magnet 5 and continues to extend downward. Its downwardly extending part strikes the base 1 and produces sound when an external force is applied.
[0039] This magnetic shaft structure is mounted on the keyboard's circuit board, which is equipped with a Hall element that matches the magnet 5. When an external force presses the guide core 3, the guide core 3 drives the magnet 5 and the sound-emitting column 32 mounted on it to move downwards, and presses the elastic element 4 to deform. The Hall element senses the magnetic field formed by the magnet 5 and transmits an output signal to the keyboard's circuit board. At the same time, the bottom end of the sound-emitting column 32 strikes the base 1 downwards, producing a crisp pressing sound, achieving a good sound effect and improving the user experience. By using a sound-emitting column 32 on the guide core 3 to strike the base 1, the guide core 3 has high hardness, and its impact sound is relatively crisp. It will not suffer much wear and tear under long-term impact use, effectively ensuring the service life of the magnetic shaft and providing good sound feedback. The magnet 5 is embedded in the magnetic mounting groove 31 and sleeved on the sound-emitting column 32 to ensure the stable installation of the magnet 5, effectively realizing the driving effect of the guide core 3. The lower end of the sound-emitting column 32 passes through the lower end face of the magnet 5 and continues to extend downward. Its downward extension strikes the base 1 under the application of external force to produce sound. Thus, while ensuring the sound experience of the shaft, the impact of the sound-emitting column 32 will not damage the magnet 5, further ensuring the signal transmission accuracy of the shaft. The various structures fit tightly together, and the operation is smooth, fast, stable, and precise. The structure has a long service life, good sound effect, and the sound effect will not decrease with long-term use, effectively improving the user experience.
[0040] To improve the sound output of this magnetic shaft structure, such as Figures 2 to 6 , Figures 9 to 10 , Figures 12 to 13 As shown, a guide ring 11 is formed on the base 1, which matches the lower end of the guide core 3 and is closed at the lower end. The lower end of the elastic element 4 is sleeved on the outside of the guide ring 11. The lower end of the guide core 3 drives the magnet 5 and the sound-emitting column 32 to move up and down inside the guide ring 11, thereby restricting the movement stroke by the guide ring 11. This allows the guide core 3 to only drive the magnet 5 and the sound-emitting column 32 to move vertically downward, avoiding the situation where the Hall element on the keyboard cannot accurately sense the magnet 5 due to displacement when the guide core 3 moves downward. This improves the accuracy of the input and output of this magnetic shaft structure. The lower end of the sound-emitting column 32 strikes the lower end surface inside the guide ring 11 to produce sound. The guide ring 11 is a hollow structure with a closed lower end. When the sound-emitting column 32 strikes the lower end surface inside the guide ring 11, the sound source vibrates inside the cavity of the guide ring 11 and forms an echo phenomenon, thus producing a relatively crisp sound inside the cavity. The sound effect is good, providing users with a good user experience.
[0041] Preferred, such as Figure 4 , Figure 6 , Figure 9 , Figure 12As shown, at least one first sliding ridge 12 is formed on the inner wall of the guide ring 11, protruding towards the inside of the guide ring 11. The outer side of the first sliding ridge 12 contacts the outer side of the lower end of the guide core 3. The first sliding ridge 12 reduces the contact area between the guide core 3 and the guide ring 11, thereby reducing the friction when the guide core 3 contacts the guide ring 11. This makes pressing the magnetic shaft smoother and provides a better feel, effectively improving the user experience.
[0042] Preferred, such as Figure 4 , Figure 6 , Figure 9 , Figure 12 As shown, the upper inner side of the guide ring 11 has a downward inclined guide surface 111 extending from the upper outer side to the lower inner side. When the guide core 3 moves downward under the action of external force, its lower end face first contacts the downward inclined guide surface 111. Under the inclined guiding action of the downward inclined guide surface 111, the guide core 3 moves more easily into the guide ring 11, further improving the accuracy of the movement of the guide core 3. This causes the magnet 5 and the sound-emitting column 32 set on the guide core 3 to also move vertically and radially, which is beneficial for the Hall element to accurately detect and sense the magnet 5 and for the sound-emitting column 32 to vertically strike the base 1 to produce a crisp sound, thus improving the user experience.
[0043] Preferred, such as Figure 3 , Figure 5 , Figure 10 , Figure 13 As shown, the outer ring at the bottom end of the sound-generating column 32 is provided with an inclined mounting guide surface 321 that extends inclinedly from the upper outer side to the lower inner side. By setting the inclined mounting guide surface 321 to extend inclinedly from the upper outer side to the lower inner side, when the magnet 5 is embedded in the magnetic mounting groove 31 and fitted onto the sound-generating column 32, the part that first contacts the inclined mounting guide surface 321 is more easily and accurately fitted onto the sound-generating column 32 under the inclined guiding action of the inclined mounting guide surface 321, thereby improving production efficiency.
[0044] Preferred, such as Figure 3 As shown, at least one inwardly recessed second sliding groove 311 is formed on the inner wall of the magnetic mounting groove 31. When the magnet 5 is embedded in the magnetic mounting groove 31 and fitted onto the sound-emitting column 32, the inwardly recessed structure of the second sliding groove 311 reduces the contact area between the magnet 5 and the magnetic mounting groove 31, thereby reducing the frictional force between the magnet 5 and the magnetic mounting groove 31. This makes it easier for the magnet 5 to be embedded in the magnetic mounting groove 31 and fitted onto the sound-emitting column 32, completing the installation of the magnet 5 and thus improving production efficiency.
[0045] To further limit the travel of the guide core 3, such as Figures 2 to 6 , Figures 9 to 10 , Figures 12 to 13 As shown, a sliding limiting block 33 is symmetrically formed on the outer side of the lower end of the guide core 3. A sliding limiting groove 6 is formed between the upper cover 2 and the base 1, which extends vertically and allows the sliding limiting block 33 to slide. When the guide core 3 moves, it drives the sliding limiting block 33 to slide in the sliding limiting groove 6. The vertically set sliding limiting groove 6 restricts the movement of the guide core 3, so that the guide core 3 can only move vertically and radially. This causes the magnet 5 and the sound-emitting column 32 set on the guide core 3 to also move vertically and radially. This facilitates the Hall element to accurately detect and sense the magnet 5 and facilitates the sound-emitting column 32 to vertically strike the base 1 to produce a crisp sound, improving the user experience.
[0046] Preferred, such as Figures 2 to 6 , Figures 12 to 13 As shown, the sliding limiting groove 6 is disposed on the inner wall of the upper cover 2. The sliding limiting groove 6 extending vertically downward is integrally formed on the inner wall of the upper cover 2. The sliding limiting block 33 slides in the sliding limiting groove 6 on the inner wall of the upper cover 2, thereby limiting the travel of the guide core 3 during the pressing stroke by the upper cover 2. This causes the magnet 5 and the sound-emitting column 32 disposed on the guide core 3 to move vertically and radially, which is beneficial for the Hall element to accurately detect and sense the magnet 5 and for the sound-emitting column 32 to vertically strike the base 1 to produce a crisp sound, thereby improving the user's experience.
[0047] Of course, such as Figures 8 to 10 As shown, the sliding limiting groove 6 can also be set inside the base 1. The sliding limiting groove 6 extending vertically upward is integrally formed on the inner wall of the base 1. The sliding limiting block 33 slides in the sliding limiting groove 6 on the inner wall of the base 1, thereby limiting the travel of the guide core 3 during the pressing stroke by the base 1. This causes the magnet 5 and the sound-emitting column 32 set on the guide core 3 to move vertically and radially, which is beneficial for the Hall element to accurately detect and sense the magnet 5 and for the sound-emitting column 32 to vertically strike the base 1 to produce a crisp sound, thus improving the user experience.
[0048] Preferred, such as Figures 2 to 4 , Figure 7 , Figure 9 , Figures 11 to 12 As shown, the upper end of the guide core 3 is generally circular, rectangular, or square. The upper end of the guide core 3 is also provided with a cross structure for fixing the keycap. Its upper end can be configured into circular, rectangular, square, or other structures to meet the different needs of different people for keycaps and improve the practicality of this magnetic shaft structure.
[0049] It should be noted that the magnetic shaft structure capable of producing sound disclosed in this utility model is an improvement on a specific structure, but the specific control method is not an innovation of this utility model. The Hall element, keycap, circuit board, and other components involved in this utility model can be general standard parts or components known to those skilled in the art, and their structure, principle, and control method are all known to those skilled in the art through technical manuals or conventional experimental methods.
[0050] The above description is merely a preferred embodiment of the present utility model and does not constitute any limitation on the technical scope of the present utility model. Therefore, other structures obtained by using the same or similar technical features as the above embodiments of the present utility model are all within the protection scope of the present utility model.
Claims
1. A sound-producing magnetic shaft structure, comprising a base, a top cover disposed on the base, a guide core movably disposed between the base and the top cover, and an elastic member sleeved between the base and the guide core, characterized in that: It also includes a magnet fitted onto the bottom of the conductor core, a magnetic mounting groove is formed at the lower end of the conductor core, and a sound-emitting column extending toward the base is formed in the middle of the magnetic mounting groove; the magnet is in the shape of a circular cylinder and is embedded in the magnetic mounting groove, with its hollow part fitted around the sound-emitting column; the lower end of the sound-emitting column passes through the lower end face of the magnet and continues to extend downward, and its downward extension strikes the base to produce sound when an external force is applied.
2. The sound-producing magnetic shaft structure according to claim 1, characterized in that: A guide ring is formed on the base that matches the lower end of the guide core and is closed at the lower end. The lower end of the elastic element is sleeved on the outside of the guide ring. The lower end of the guide core drives the magnet and the sound-emitting column to move up and down inside the guide ring. The lower end of the sound-emitting column strikes the lower end surface inside the guide ring to produce sound.
3. The sound-producing magnetic shaft structure according to claim 2, characterized in that: At least one first sliding ridge is formed on the inner wall of the guide ring, protruding toward the inside of the guide ring.
4. The sound-producing magnetic shaft structure according to claim 2, characterized in that: The upper inner side of the guide ring has a downward inclined guide surface that extends from the upper outer side to the lower inner side.
5. The sound-producing magnetic shaft structure according to claim 1, characterized in that: The outer ring at the bottom end of the sound-emitting column is provided with an inclined mounting guide surface that extends from the upper outer side to the lower inner side.
6. The sound-producing magnetic shaft structure according to claim 1, characterized in that: At least one inwardly recessed second sliding groove is formed on the inner wall of the magnetic mounting groove.
7. The sound-producing magnetic shaft structure according to claim 1, characterized in that: A sliding limiting block is symmetrically formed on the outer side of the lower end of the guide core, and a sliding limiting groove is formed between the upper cover and the base, which extends vertically and allows the sliding limiting block to slide.
8. The sound-producing magnetic shaft structure according to claim 7, characterized in that: The sliding limiting groove is provided on the inner wall of the upper cover.
9. The sound-producing magnetic shaft structure according to claim 7, characterized in that: The sliding limiting groove is located inside the base.
10. The sound-producing magnetic shaft structure according to claim 1, characterized in that: The upper end of the guide core is generally circular, rectangular, or square.