A shaft body with loudspeaker sound emission

Abstract

The utility model discloses a kind of shaft body with loudspeaker sound, including circuit board, pedestal, upper cover, guide core, elastic member, further include being set between the pedestal and upper cover and the loudspeaker component of being connected with circuit board electrically and being penetrated out of pedestal, the loudspeaker component includes being set between the pedestal and upper cover and the micro control unit of being connected with circuit board electrically and being penetrated out of pedestal, be set on the audio control chip of the micro control unit, be set on the loudspeaker of the micro control unit.The utility model provides a kind of shaft body with loudspeaker sound, loudspeaker can sound when shaft body is used, in addition to the different electronic knocking sound of sending out, it can also play music etc., effectively satisfy the different needs of people to shaft body use, and, cooperate the magnetic sensing structure of Hall sensor and magnet, avoid mechanical wear, conduction accurate, long service life.

Description

Technical Field

[0001] This utility model relates to the field of keyboard switch technology, and in particular to a switch with a speaker for sound generation. 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] Currently, existing axles typically generate tactile feedback and sound through the collision of internal springs or the impact of an elastic structure against the inner wall of the axle. This method is prone to wear and tear over long-term use, leading to a gradual decrease in transmission accuracy and a deterioration in sound quality, which is detrimental to daily use. Furthermore, this sound generation method produces a limited range of sounds, failing to meet the diverse sound preferences of different users. Utility Model Content

[0004] To address the aforementioned shortcomings, the purpose of this utility model is to provide a shaft with a speaker that can produce sound when the shaft is in use. In addition to emitting different electronic knocking sounds, it can also play music, effectively meeting people's different needs for shaft use. Furthermore, in conjunction with the Hall sensor and the magnetic structure of the magnet, mechanical wear is avoided, the conduction is accurate, and the service life is long.

[0005] The technical solution adopted by this utility model to achieve the above objectives is as follows:

[0006] A shaft with a loudspeaker for sound generation includes a circuit board, a base disposed on the circuit board, a top cover disposed on the base, a guide core movably disposed between the base and the top cover and extending through the top cover at its upper end, and an elastic member sleeved between the guide core and the base. The shaft is characterized by further including a speaker assembly disposed between the base and the top cover and extending through the base and electrically connected to the circuit board. The speaker assembly includes a microcontroller unit disposed between the base and the top cover and extending through the base and electrically connected to the circuit board, an audio control chip disposed on the microcontroller unit, and a loudspeaker disposed on the microcontroller unit.

[0007] As a further improvement of this utility model, the microcontroller unit is provided with at least one speaker pin that passes through the base and is embedded in the circuit board for electrical connection, and at least one pin clearance hole is formed on the bottom surface of the base for the speaker pin to pass through.

[0008] As a further improvement of this utility model, the upper end of the pin clearance hole is provided with a pin inclined guide surface that extends obliquely from the outer upper direction to the inner lower direction.

[0009] As a further improvement of this utility model, micro-control limiting portions that protrude inward and are generally I-shaped are respectively formed on both ends of the inner wall of one side of the base. The two ends of the micro-control unit are embedded in the micro-control limiting portions, and the two ends of the speaker abut against the protrusions of the micro-control limiting portions.

[0010] As a further improvement of this utility model, the speaker is disposed on the upper part of the microcontroller unit, the audio control chip is disposed on the lower part of the microcontroller unit, and the bottom end of the microcontroller unit and the bottom end of the audio control chip are both pressed against the inner wall of the bottom surface of the base.

[0011] As a further improvement of this utility model, it also includes a magnet disposed at the lower end of the conductor core and a Hall sensor disposed on the circuit board and matched with the magnet. A sound-emitting column extending towards the base is formed at the lower end of the conductor core; a magnetic mounting groove extending upward is formed at the middle of the lower end of the sound-emitting column, and the magnet is correspondingly placed into the magnetic mounting groove.

[0012] As a further improvement of this utility model, a guide ring is formed on the base that matches the sound-emitting column and is closed at the lower end. The lower end of the elastic element is sleeved on the outside of the guide ring. The sound-emitting column drives the magnet 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.

[0013] As a further improvement of this utility model, the diameter of the magnet is larger than the diameter of the magnetic mounting groove, and the magnet is interference-fitted into the magnetic mounting groove.

[0014] As a further improvement of this utility model, the lower end of the magnet protrudes out of the magnetic mounting groove.

[0015] 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.

[0016] The beneficial effects of this utility model are as follows:

[0017] The shaft is configured to include a circuit board, a base on the circuit board, a top cover on the base, a guide core movably disposed between the base and the top cover and extending through the top cover, and an elastic member sleeved between the guide core and the base. It also includes a speaker assembly disposed between the base and the top cover and extending through the base and electrically connected to the circuit board. The speaker assembly includes a microcontroller unit disposed between the base and the top cover and extending through the base and electrically connected to the circuit board, an audio control chip disposed on the microcontroller unit, and a loudspeaker disposed on the microcontroller unit. By electrically connecting the speaker assembly to the circuit board, the microcontroller unit can control the audio control chip to drive the speaker to produce sound when the key is in use, based on the key's trigger action or the guide moving to a certain position. The speaker can emit a preset tapping sound or set music, effectively solving the problem of having to replace the entire key switch if people want to use different key sounds. The set tapping sound, music, and speaker trigger travel can all be set individually, giving users more choices and effectively meeting different needs for key use, thus improving the practicality of the key.

[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 a schematic diagram of the overall design of this utility model;

[0020] Figure 2 This is a schematic diagram of the bottom surface of the present invention;

[0021] Figure 3 This is an exploded view of the present invention;

[0022] Figure 4 This is a side view of the speaker assembly;

[0023] Figure 5 This is a cross-sectional view of the present invention;

[0024] Figure 6 This is a schematic diagram of the speaker assembly on the base.

[0025] Figure 7 This is a schematic diagram of the base structure;

[0026] Figure 8 This is a schematic diagram of the magnet's structure inside the conductor core;

[0027] Figure 9 This is a schematic diagram of the conductor core.

[0028] In the diagram: 1. Circuit board; 2. Base; 21. Pin clearance hole; 211. Pin tilting guide surface; 22. Microcontroller limiting part; 221. Microcontroller tilting guide surface; 23. Guide ring; 231. First sliding ridge; 232. Downward tilting guide surface; 3. Top cover; 4. Guide core; 41. Sound-emitting column; 411. Magnetic mounting groove; 5. Elastic element; 6. Speaker assembly; 61. Microcontroller unit; 62. Audio control chip; 63. Speaker; 64. Speaker pin; 7. Magnet; 8. Hall sensor. Detailed Implementation

[0029] 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.

[0030] 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.

[0031] 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 technical features indicated. 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.

[0032] 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.

[0033] Please refer to Figures 1 to 9This utility model embodiment provides a shaft with a speaker 63 for sound emission, including a circuit board 1, a base 2 disposed on the circuit board 1, a top cover 3 disposed on the base 2, a guide core 4 movably disposed between the base 2 and the top cover 3 and extending through the top cover 3 at its upper end, an elastic member 5 sleeved between the guide core 4 and the base 2, and a speaker assembly 6 disposed between the base 2 and the top cover 3 and extending through the base 2 and electrically connected to the circuit board 1. The speaker assembly 6 includes a microcontroller unit 61 disposed between the base 2 and the top cover 3 and extending through the base 2 and electrically connected to the circuit board 1, an audio control chip 62 disposed on the microcontroller unit 61, and a speaker 63 disposed on the microcontroller unit 61. By electrically connecting the speaker assembly 6 to the circuit board 1, the microcontroller unit 61 can control the audio control chip 62 to drive the speaker 63 to emit sound when the key switch is in use, based on the action triggered by the key switch or when the guide core 4 moves down to a certain position. The speaker 63 can emit a preset tapping sound or set music, effectively solving the problem that people need to replace the entire key switch if they want to use different key sounds. The set tapping sound, music and speaker trigger travel can all be set individually, thus giving people more choices and effectively meeting people's different needs for key switch use, improving the practicality of the key switch.

[0034] Regarding the electrical connection method between the speaker assembly 6 and the circuit board 1, such as... Figures 3 to 7 As shown, the microcontroller unit 61 is provided with at least one speaker pin 64 that passes through the base 2 and is embedded in the circuit board 1 for electrical connection. The bottom surface of the base 2 is formed with at least one pin clearance hole 21 for the speaker pin 64 to pass through. The speaker pin 64 passes through the pin clearance hole 21 on the bottom surface of the base 2 and continues to pass downward into the circuit board 1, thereby realizing electrical connection with the circuit board 1. The circuit board 1 provides power supply and outputs external program signals, enabling people to externally adjust the striking sound, music and the trigger stroke of the speaker 63 emitted by the speaker assembly 6, giving people more choices, meeting different needs and improving the practicality of the shaft.

[0035] Preferred, such as Figure 7 As shown, in order to better allow the speaker pin 64 to pass through the pin clearance hole 21 and connect with the circuit board 1, the upper end of the pin clearance hole 21 is provided with a pin inclined guide surface 211 extending inclinedly from the upper outer side to the lower inner side. When the speaker pin 64 needs to pass through the pin clearance hole 21, the speaker pin 64 first contacts the pin inclined guide surface 211. Under the inclined guiding action of the pin inclined guide surface 211, it is easier and more accurate to pass through the middle of the pin clearance hole 21, thereby improving the assembly speed of the shaft, facilitating high-speed production, and the replacement and maintenance of parts.

[0036] Preferred, such as Figures 3 to 4 , Figure 7 As shown, there are 4 sets of speaker pins 64, which are respectively matched with the audio control chip 62 and the speaker 63 to achieve a good sound output effect. There are also 4 sets of pin clearance holes 21.

[0037] To prevent the speaker assembly 6 from shifting during use and causing poor sound output, such as... Figures 6 to 7 As shown, two inwardly protruding, I-shaped microcontroller limiting portions 22 are respectively formed on both ends of the inner wall of one side of the base 2. The two ends of the microcontroller 61 are embedded in the microcontroller limiting portions 22, thereby limiting the position of the microcontroller 61. This effectively prevents the microcontroller 61 from shifting due to vibration when the speaker 63 is emitting sound, resulting in poor sound output or damage due to collision with the base 2. The two ends of the speaker 63 press against the protrusions of the microcontroller limiting portions 22, thereby limiting the position of the speaker 63 when it vibrates during sound output. This makes it difficult for the speaker 63 to drive other components to shift, further ensuring the sound output effect of this speaker assembly 6.

[0038] Preferred, such as Figures 6 to 7 As shown, the upper end of the micro-control limiting part 22 is provided with a micro-control tilting guide surface 221 that extends obliquely from the upper outer side to the lower inner side. When the micro-control unit 61 is placed into the micro-control limiting part 22, it first contacts the micro-control tilting guide surface 221. Under the tilting guidance of the micro-control tilting guide surface 221, it is easier and more accurate to place into the middle of the micro-control limiting part 22, thereby improving the efficiency and accuracy of the assembly of this shaft.

[0039] To further prevent the speaker assembly 6 from shifting during use and causing poor sound output, such as... Figures 3 to 7 As shown, the speaker 63 is disposed on the upper part of the microcontroller 61, and the audio control chip 62 is disposed on the lower part of the microcontroller 61. The bottom ends of the microcontroller 61 and the audio control chip 62 are pressed against the inner wall of the bottom surface of the base 2, thereby limiting the lower ends of the microcontroller 61 and the audio control chip 62 by the base 2 and preventing them from protruding out of the base 2, further ensuring the stability of the speaker assembly 6. Furthermore, the upper structure of the speaker 63 makes it easier for the sound to be emitted, further improving the sound production effect of the shaft.

[0040] For other structural features of this shaft, such as Figures 3 to 6 as well as Figures 8 to 9As shown, this shaft also includes a magnet 7 disposed at the lower end of the guide core 4 and a Hall sensor 8 disposed on the circuit board 1 and matched with the magnet 7. A sound-emitting column 41 extending towards the base 2 is formed at the lower end of the guide core 4; a magnetic mounting groove 411 extending upward is formed at the middle of the lower end of the sound-emitting column 41, and the magnet 7 is correspondingly placed in the magnetic mounting groove 411. When an external force presses the guide core 4, it drives the sound-emitting column 41 and the magnet 7 disposed in the sound-emitting column 41 to move downward, and presses the elastic element 5 to deform the elastic element 5. The Hall sensor 8 senses the magnetic field formed by the magnet 7 and transmits the sensing signal to the circuit board 1, which avoids the mechanical wear caused by the collision of moving and stationary pieces in the prior art, and improves the accuracy of the shaft signal transmission, effectively ensuring the service life of this shaft. The length of the sound-generating column 41 can be set according to actual needs. When the shaft needs to produce sound upon pressing, the length of the sound-generating column 41 can be set to the length that can impact the base. Thus, when the guide core 4 moves down, the sound-generating column 41 impacts the base 2, producing a crisp pressing sound, achieving a good sound-generating effect, improving the user experience of the shaft, and providing users with another sound-generating method. By placing the magnet 7 into the magnetic mounting groove 411, the stable installation of the magnet 7 is ensured, effectively realizing the driving effect of the guide core 4. The various structures fit tightly together, and the operation is smooth, fast, stable, and precise, with a long structural lifespan.

[0041] Preferred, such as Figure 2 As shown, the Hall sensor 8 is disposed on the back of the circuit board 1, so that the front of the circuit board 1 can be used to install components such as the base 2. The components of this shaft are more compact and space is saved, which is conducive to making the shaft thinner and lighter, and meeting the needs of different users.

[0042] To improve the impact sound effect of this shaft, such as Figure 3 , Figures 5 to 7 As shown, a guide ring 23 is formed on the base 2, which matches the sound-emitting column 41 and is closed at the lower end. The lower end of the elastic element 5 is sleeved on the outside of the guide ring 23. The sound-emitting column 41 drives the magnet 7 to move up and down inside the guide ring 23, thereby restricting the movement of the zinc layer by the guide ring 23. This allows the guide core 4 to only drive the magnet 7 and the sound-emitting column 41 to move vertically downward, avoiding the situation where the Hall sensor 8 cannot accurately detect the magnet 7 when the guide core 4 moves downward. This improves the sensing accuracy of the shaft. The lower end of the sound-emitting column 41 strikes the lower end surface inside the guide ring 23 to produce sound. The guide ring 23 is a hollow structure with a closed lower end. When the sound-emitting column 41 strikes the lower end surface inside the guide ring 23, the sound source vibrates inside the cavity of the guide ring 23 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.

[0043] Preferred, such as Figures 6 to 7 As shown, at least one first sliding ridge 231 protruding towards the inside of the guide ring 23 is formed on the inner wall of the guide ring 23. The outer side of the first sliding ridge 231 contacts the outer side of the lower end of the guide core 4. The first sliding ridge 231 reduces the contact area between the guide core 4 and the guide ring 23, thereby reducing the friction when the guide core 4 contacts the guide ring 23. This makes pressing the magnetic shaft smoother and provides a better feel, effectively improving the user experience.

[0044] Preferred, such as Figures 6 to 7 As shown, the upper inner side of the guide ring 23 has a downward inclined guide surface 232 that extends from the upper outer side to the lower inner side. When the guide core 4 moves downward under the action of external force, the lower end face of the sound-emitting column 41 first contacts the downward inclined guide surface 232. Under the inclined guiding action of the downward inclined guide surface 232, the sound-emitting column 41 moves more easily into the guide ring 23, further improving the accuracy of the movement of the sound-emitting column 41. This causes the magnet 7 set on the sound-emitting column 41 to also move vertically and radially, which is beneficial for the Hall element to accurately detect and sense the magnet 7 and for the sound-emitting column 41 to vertically strike the base to produce a crisp sound, thus improving the user experience.

[0045] Preferred, such as Figure 5 As shown, the diameter of the magnet 7 is larger than the diameter of the magnetic mounting groove 411. The magnet 7 is interference-fitted into the magnetic mounting groove 411 and cannot be removed from the magnetic mounting groove 411 without external force, thereby ensuring the stable installation of the magnet 7 and guaranteeing the signal transmission accuracy of this shaft.

[0046] Preferred, such as Figure 5 and Figure 8 As shown, the lower end of the magnet 7 protrudes out of the magnetic mounting groove 411, so that the magnet 7 strikes the bottom wall of the guide ring 23 downward to produce sound. The magnet 7 has high hardness and a longer service life compared with other materials. Furthermore, the downward protruding structure of the magnet 7 is more conducive to the Hall sensor 8 on the back of the circuit board 1 to sense, effectively ensuring the signal transmission accuracy of this shaft.

[0047] It should be noted that the shaft with speaker sound generation disclosed in this utility model is an improvement on the specific structure, but the specific control method is not the innovation of this utility model. The circuit board, Hall sensor, magnet, speaker, audio control chip, microcontroller unit, and other components involved in this utility model can be general standard parts or components known to those skilled in the art. Their structure, principle, and control method are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0048] 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 shaft with a loudspeaker for sound generation, comprising a circuit board, a base disposed on the circuit board, a top cover disposed on the base, a guide core movably disposed between the base and the top cover and having its upper end extending through the top cover, and an elastic member sleeved between the guide core and the base, characterized in that: It also includes a speaker assembly disposed between the base and the top cover and extending out of the base and electrically connected to the circuit board. The speaker assembly includes a microcontroller unit disposed between the base and the top cover and extending out of the base and electrically connected to the circuit board, an audio control chip disposed on the microcontroller unit, and a loudspeaker disposed on the microcontroller unit.

2. The shaft with loudspeaker sound output according to claim 1, characterized in that: The microcontroller unit is provided with at least one speaker pin that passes through the base and is embedded in the circuit board for electrical connection, and at least one pin clearance hole is formed on the bottom surface of the base for the speaker pin to pass through.

3. The shaft with loudspeaker sound output according to claim 2, characterized in that: The upper end ring of the pin clearance hole is provided with a pin inclined guide surface that extends obliquely from the outer upper to the inner lower.

4. The shaft with loudspeaker sound output according to claim 1, characterized in that: On one side of the inner wall of the base, there are two inwardly protruding micro-control limiting parts that are I-shaped. The two ends of the microcontroller are embedded in the micro-control limiting parts, and the two ends of the speaker are pressed against the protrusions of the micro-control limiting parts.

5. The shaft with loudspeaker sound output according to claim 1, characterized in that: The speaker is located at the top of the microcontroller unit, and the audio control chip is located at the bottom of the microcontroller unit. The bottom ends of the microcontroller unit and the audio control chip are both pressed against the inner wall of the bottom surface of the base.

6. The shaft with loudspeaker sound output according to any one of claims 1 to 5, characterized in that: It also includes a magnet disposed at the lower end of the conductor core and a Hall sensor disposed on the circuit board and matched with the magnet. A sound-emitting column extending towards the base is formed at the lower end of the conductor core; a magnetic mounting groove extending upward is formed at the middle of the lower end of the sound-emitting column, and the magnet is correspondingly placed into the magnetic mounting groove.

7. The shaft with loudspeaker sound output according to claim 6, characterized in that: A guide ring is formed on the base to match the sound-emitting column and is closed at the lower end. The lower end of the elastic element is sleeved on the outside of the guide ring. The sound-emitting column drives the magnet 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.

8. The shaft with loudspeaker sound output according to claim 6, characterized in that: The diameter of the magnet is larger than the diameter of the magnetic mounting groove, and the magnet is interference-fitted into the magnetic mounting groove.

9. The shaft with loudspeaker sound output according to claim 6, characterized in that: The lower end of the magnet protrudes out of the magnetic mounting groove.

10. The shaft with loudspeaker sound output according to claim 7, 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.

Images