Sound producing structure for push button switch

Abstract

Disclosed is a sound producing structure for a push button switch. The sound producing structure comprises a base and a guide core arranged on the base, and further comprises a sound producing member movably arranged between the guide core and the base, and an elastic member of which one end is fixed to a lower surface of the guide core and the other end is fixed to the sound producing member. A sound production limiting portion that separately limits two sides of the sound producing member to produce sound is correspondingly formed on the lower surface of the guide core. At least one sound production limiting recess is formed in the middle of the sound production limiting portion. The sound producing member acts on the sound production limiting recess. According to the sound producing structure for a push button switch provided by the present invention, the effect of sound production upon pressing is achieved, and various structures cooperate closely, so that the action is smooth, rapid, stable, and accurate, the service life of the structure is long, the sound production effect is good, and the sound production effect is not reduced after long-term use, thereby improving user experience.

Description

A sound-generating structure for a key switch Technical Field

[0001] The present invention relates to the technical field of key switches, and in particular to a sound-generating structure for a key switch. Background Art

[0002] Currently, the most widely used sound-generating pushbutton switches on the market use a torsion spring that bounces against the switch base or cover to produce sound. However, after prolonged use, the torsion spring reaches its limit, causing it to deform and no longer be able to bounce. This shortens the life of the torsion spring, significantly reducing the sound quality. Summary of the Invention

[0003] In view of the above-mentioned shortcomings, the purpose of the present invention is to provide a sound-producing structure for a push-button switch to achieve a pressing sound effect. The various structures cooperate closely with each other, and the movement is smooth, fast, stable and precise. The structure has a long life and a good sound effect. The sound effect will not be reduced after long-term use, thereby improving the user experience.

[0004] The technical solution adopted by the present invention to achieve the above-mentioned object is:

[0005] A sound-producing structure for a push-button switch comprises a base, a guide core arranged on the base, a sound-producing member movably arranged between the guide core and the base, and an elastic member having one end fixed to the lower surface of the guide core and the other end arranged on the sound-producing member. A sound-producing limiting portion is correspondingly formed on the lower surface of the guide core for limiting the two sides of the sound-producing member to produce sound. At least one sound-producing limiting groove is formed in the middle of the sound-producing limiting portion, and the sound-producing member acts on the sound-producing limiting groove.

[0006] As a further improvement of the present invention, a movable sounding column is respectively formed on both sides of the rear end of the sounding member, extending toward the sounding limiting groove and acting on the sounding limiting groove.

[0007] As a further improvement of the present invention, the sound limiting groove is arranged to extend obliquely from the lower rear portion toward the upper front portion.

[0008] As a further improvement of the present invention, the front end of the sounding member is respectively formed with a movable limiting column extending outward, and the front end of the sounding limiting portion is respectively formed with a movable limiting groove for the movable limiting column to move.

[0009] As a further improvement of the present invention, the movable limiting groove is rectangular as a whole.

[0010] As a further improvement of the present invention, the bottom of the sound-emitting part is formed with a guiding inclined surface extending obliquely from the rear lower part toward the front lower part, the base is formed with a movable movable groove for the movement of the sound-emitting part, and the movable movable groove is formed with a limiting step extending toward the front end of the sound-emitting part at the position of the tail end of the sound-emitting part.

[0011] As a further improvement of the present invention, a fixed guide column that is overall in a cross-conical shape and extends downward is formed on the lower surface of the guide core, and a through limiting groove that matches the fixed guide column is formed in the middle of the sound-emitting member.

[0012] As a further improvement of the present invention, an elastic connecting groove extending outward and matching the elastic member is formed on the outer side of the upper end of the through-limiting groove; the upper end of the elastic member is sleeved on the fixed guide column, and the other end is fixed in the elastic connecting groove.

[0013] As a further improvement of the present invention, the elastic member is a spring.

[0014] As a further improvement of the present invention, the front end of the sound-emitting member is further provided with a limiting protrusion extending forward.

[0015] The beneficial effects of the present invention are:

[0016] Through the guide core with a special structural design, the sounding part is driven by the guide core to act in the sound limiting groove, thereby achieving a press-to-sound effect. The various structures cooperate closely, and the movement is smooth, fast, stable and precise. The structure has a long life and the sounding effect is good. The sounding effect will not be reduced after long-term use, thereby improving the user experience.

[0017] The above is an overview of the technical solution of the invention. The present invention will be further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is an overall schematic diagram of the present invention;

[0019] FIG2 is an explosion diagram of the present invention;

[0020] FIG3 is a schematic diagram of the opening of the present invention;

[0021] FIG4 is another open schematic diagram of the present invention;

[0022] FIG5 is a schematic structural diagram of a sound-generating component;

[0023] FIG6 is a cross-sectional view of the present invention when not pressed;

[0024] FIG7 is a cross-sectional view of the present invention when pressing begins;

[0025] FIG8 is a cross-sectional view of the present invention when further pressed;

[0026] FIG9 is a cross-sectional view of the present invention when the impact sound is produced;

[0027] FIG10 is a cross-sectional view of the present invention when pressed into place;

[0028] In the figure: 1. base; 11. movable movable groove; 111. limiting step; 2. guide core; 21. sound limiting part; 211. sound limiting groove; 212. movable limiting groove; 22. fixed guide column; 3. sounding part; 31. movable sounding column; 32. movable limiting column; 33. guiding slope; 34. through limiting groove; 35. elastic connecting groove; 36. limiting protrusion; 4. elastic part. DETAILED DESCRIPTION

[0029] In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings and preferred embodiments.

[0030] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[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 the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0032] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0033] Please refer to Figures 1 to 10. An embodiment of the present invention provides a sound-producing structure for a push button switch, including a base 1, a guide core 2 arranged on the base 1, a sound-producing member 3 movably arranged between the guide core 2 and the base 1, and an elastic member 4 with one end fixed to the lower surface of the guide core 2 and the other end fixed to the sound-producing member 3. A sound-producing limiting portion 21 is correspondingly formed on the lower surface of the guide core 2 to limit the two sides of the sound-producing member 3 for sound production. At least one sound-producing limiting groove 211 is formed in the middle of the sound-producing limiting portion 21, and the sound-producing member 3 acts on the sound-producing limiting groove 211.

[0034] As shown in FIG. 1 to FIG. 6 , in a non-pressed state, the sounding member 3 is located at the lowest end of the sounding limiting groove 211 under the elastic action of the elastic member 4 . When the guide core 2 is pressed downward, the guide core 2 drives the elastic member 4 and the sound-generating member 3 to move downward, and one end of the sound-generating member 3 is pressed against the base 1. The upper end of the elastic member 4 is compressed and deformed by the pressure of the guide core 2, so that the end of the sound-generating member 3 pressed against the base 1 is tilted, and the sound-generating member 3 moves laterally and tiltedly from the bottom end of the sound-generating member 211 to the middle upper position of the sound-generating member 211 in the sound-generating limit groove 211. The guide core 2 continues to be pressed downward into place, and one end of the sound-generating member 3 is separated from the pressed position of the base 1. Under the elastic force of the elastic member 4, the elastic member 4 exerts a downward force on the sound-generating member 3, and the sound-generating member 3 enters the base 1. The sound-generating member 3 moves from the middle upper position of the sound-generating limit groove 211 in the sound-generating limit groove 211 and hits the middle lower position of the sound-generating limit groove 211 to make a sound, thereby achieving the purpose of pressing and making a sound.

[0035] Preferably, the guide core 2 and the sound limiting portion 21 are integrally formed.

[0036] Regarding the specific impact sounding mode of the sounding member 3 in the sound limiting portion 21, as shown in Figures 2 to 3 and 5, a movable sounding column 31 extending toward the sound limiting groove 211 and acting on the sound limiting groove 211 is respectively formed on both sides of the rear end of the sounding member 3. As shown in Figures 6 to 10, the movable sounding column 31 moves in the sound limiting groove 211 and is driven by the guide core 2 to impact the sound limiting groove 211 to achieve sounding. The matching restriction of the movable sounding column 31 in the sound limiting groove 211 limits the moving stroke of the sounding member 3, prevents the sounding member 3 from moving in other directions while being driven by the guide core 2, and improves the accuracy and efficiency of the sounding.

[0037] As for the specific manner in which the sound limiting groove 211 limits the sounding member 3, as shown in Figures 2 to 3 and 5, the sound limiting groove 211 is arranged to extend obliquely from the rear lower portion toward the front upper portion. Under the oblique guiding action of the sound limiting groove 211, the movable sounding column 31 limits the movement of the sounding member 3, preventing the sounding member 3 from moving in other directions while being driven by the guide core 2, and causing the movable sounding column 31 to perform an oblique movement within the sound limiting groove 211. Furthermore, the oblique structural setting increases the movement of the movable sounding column 31, and in conjunction with the elastic restoring force of the elastic member 4, the time when the movable sounding column 31 is driven to impact the sound limiting groove 211 and achieve sound is staggered with the time when the guide core 2 rebounds, thereby avoiding the problem that the rebound time of the guide core 2 and the sounding time are the same, thereby covering the sound of the sounding member 3 or preventing sound from being produced. The width of the sound limiting groove 211 is longer than the width of the movable sounding column 31, thereby reserving sufficient space for the movable sounding column 31 of the sounding member 3 to move in the up and down directions of the sound limiting groove 211, which is beneficial to the coordination of various components.

[0038] In order to further limit the movement of the sounding member 3 and prevent the sounding member 3 from moving in other directions while being driven by the guide core 2, as shown in Figures 2 to 3 and 5, the front end of the sounding member 3 is respectively formed with a movable limiting post 32 extending outward, and the front end of the sound limiting portion 21 is respectively formed with a movable limiting groove 212 for the movable limiting post 32 to move. As shown in Figures 6 to 10, when the guide core 2 is pressed down or rebounded, the sounding member 3 is driven by the guide core 2 and the elastic member 4, and the movable limiting post 32 moves in the movable limiting groove 212, so that the movable limiting post 32 is limited in its movement by the movable limiting groove 212, further preventing the sounding member 3 from moving in other directions while being driven by the guide core 2, facilitating the coordination between the various components, and improving the accuracy and efficiency of the sounding member 3's impact.

[0039] Preferably, the height of the lowest end of the movable limiting groove 212 is higher than the height of the lowest end of the sound limiting groove 211, so that the sounding part 3 can be more easily moved laterally with the cooperation of the sounding limiting groove 211 and the movable limiting groove 21, which is beneficial to the cooperation between the various components and improves the accuracy and efficiency of the impact of the sounding part 3.

[0040] As for the specific structural setting of the movable limit groove 212, as shown in Figures 2 to 3 and Figures 6 to 10, the movable limit groove 212 is rectangular as a whole, and the movable limit column 32 moves along the straight edge of the movable limit groove 212 in the movable limit groove 212 and is guided by the edge of the movable limit groove 212, thereby limiting the moving stroke of the front end of the sounding part 3, avoiding the problem of the sounding part 3 moving in other directions and excessive movement during the process of being driven by the guide core 2.

[0041] As shown in Figures 2 to 5 , the bottom of the sounding member 3 is formed with a guide slope 33 extending obliquely from the lower rear portion toward the lower front portion. The base 1 is formed with a movable groove 11 for the movement of the sounding member 3. The movable groove 11 is formed at the rear end of the sounding member 3 and has a limiting step 111 extending toward the front end of the sounding member 3. When not pressed, the rear end of the sounding member 3 is pressed against the limiting step 111, and the sounding member 3 is located at the upper end of the movable groove 11. As shown in Figures 6 to 10, when the guide core 2 is pressed, the sounding member 3, under the cooperation of the guide core 2 and the elastic member 4, is guided by the guide slope 33 and moves horizontally and obliquely from the limit step 111 to the edge of the limit step 111. Then, under the elastic restoring force of the elastic member 4, the sounding member 3 is accelerated downward, and the sounding member 3 breaks away from the limit step 111 and enters the lower end of the movable movable groove 11. At this time, the movable sounding column 31 hits the sound limiting groove 211 to produce sound. The provision of the movable movable groove 11 allows the sounding member 3 to move horizontally and radially between the base 1 and the guide core 2 to produce sound. By forming a limiting step 111 extending toward the front end of the sounding member 3 at the rear end of the sounding member 3 on the movable movable groove 11, the sounding member 3 is limited by the limiting step 111 during the process of the front end being pressed down, and the movable sounding column 31 at the rear end of the sounding member 3 is tilted up under the limitation of the limiting step 111, providing the movable sounding column 31 with the function of moving upward, so that the movable sounding column 31 moves to the upper middle part of the sounding limiting groove 211, providing the movable sounding column 31 with an impact acceleration space for moving downward and hitting the lower middle part of the sounding limiting groove 211, thereby hitting the lower middle part of the sounding limiting groove 211 and making a sound, which is beneficial to improving the sound of the impact.

[0042] To further prevent the sounding member 3 from excessive movement, as shown in Figures 3 and 5, a fixed guide post 22 is formed on the lower surface of the guide core 2 and extends downward in a generally cross-conical shape. A through-limiting groove 34 is formed in the middle of the sounding member 3 to match the fixed guide post 22. As shown in Figures 6 to 10, when the guide core 2 is pressed downward, the fixed guide post 22 passes through or partially passes through the through-limiting groove 34, so that the sounding member 3 is limited by the fixed guide post 22 during movement, preventing the sounding member 3 from excessive movement, facilitating the coordination between the various components, and further improving the accuracy and efficiency of the sounding member 3's impact.

[0043] In order to further prevent the sounding member 3 from excessive movement, as shown in Figures 3 and 5, the front end of the sounding member 3 is also provided with a limiting protrusion 36 extending forward, as shown in Figures 6 to 10, the limiting protrusion 36 is pressed against the front end of the movable movable groove 11 when the rear end of the sounding member 3 is out of the limiting step 111, and after pressing, it gives the sounding member 3 a backward force, so that the sounding member 3 enters the movable movable groove 11, further preventing the sounding member from excessive movement, which is beneficial to the coordination between the various components.

[0044] As shown in FIG. 6 to FIG. 10 , the diameter of the through-limiting groove 34 is larger than the diameter of the fixed guide post 22 , thereby reserving movable space for the sound generating member to impact and generate sound.

[0045] As for the specific way in which the elastic member 4 acts on the sound-emitting member 3, as shown in Figures 2 to 3 and Figure 5, an elastic connecting groove 35 extending outward and matching the elastic member 4 is formed on the outer side of the upper end of the through-limiting groove 34; the upper end of the elastic member 4 is sleeved on the fixed guide column 22, and the other end is arranged in the elastic connecting groove 35, so that the elastic member 4 can act on the sound-emitting member 3 when the guide core 2 is pressed down, and can also be subjected to the upward force of the sound-emitting member 3 when the sound-emitting member 3 is pressed against the limiting step 111, thereby further compressing itself and feeding back to the sound-emitting member 3 a larger elastic restoring force in the downward direction, thereby increasing the force and speed of the impact of the sound-emitting member 3, which is conducive to improving the sound of the impact of the sound-emitting member 3.

[0046] Preferably, as shown in Figures 2 to 3, the elastic member 4 is a spring. The spring is inexpensive, has good fatigue resistance, high stability, and long service life, which is beneficial to improving the practicality of the sounding structure, reducing the production cost of the sounding structure, and ensuring the service life of the sounding mechanism.

[0047] Other structures in the push button switch, such as the reset structure between the guide core and the base (using a spring reset or a balance frame reset, etc.), can be set according to actual conditions, so no specific restrictions are made in this embodiment.

[0048] The specific operation process of this sound structure:

[0049] As shown in Figure 6, in the unpressed state, the rear end of the sounding member 3 is pressed against the limiting step 111, and the movable sounding column 31 is located at the lowest end of the sounding limiting groove 211 under the elastic force of the elastic member 4, and the movable limiting column 32 is located at the rear end of the movable limiting groove 212.

[0050] As shown in Figures 7 to 8, when the guide core 2 is pressed, the guide core 2 moves downward. Since the rear end of the sounding member 3 is pressed against the limiting step 111, the elastic member 4 is compressed and deformed, giving the sounding member 3 a force for lateral tilting movement. After the sounding member 3 is subjected to the force of the elastic member 4, the rear end of the sounding member 3 is laterally tilted and moved to the edge of the limiting step 111 under the guidance of the guide slope 33. The movable sounding column 31 at the rear end of the sounding member 3 is gradually laterally tilted and moved to the upper middle part of the sounding limiting groove 211 under the inclined guiding action of the sounding limiting groove 211. The movable limiting column 32 at the front end of the sounding member 3 gradually moves to the front end of the movable limiting groove 212, and the degree to which the elastic member 4 is compressed and deformed gradually increases.

[0051] As shown in Figures 9 to 10, the guide core 2 continues to be pressed downward, and the rear end of the sounding member 3 moves laterally under the guiding action of the guide slope 33 to disengage from the limiting step 111 and enter the movable movable groove 11. After the sounding member 3 disengages from the limiting action of the limiting step 111, it is subjected to the instantaneous rapid downward force given by the greater elastic deformation of the elastic member 4. The movable sounding column 31 at the rear end of the sounding member 3 moves from the upper middle part of the sounding limiting groove 211 to the lower middle part of the sounding limiting groove 211, and in the process hits the lower middle part of the sounding limiting groove 211 to make a sound.

[0052] Release the guide core 2, the guide core 2 moves upward, and the sounding member 3 is reset to an unpressed state under the drive of the guide core 2, waiting for the next use.

[0053] The various structures work closely together, and the movements are smooth, fast, stable, and precise. The structure has a long life and the sound effect is good. The sound effect will not decrease after long-term use, which improves the user experience.

[0054] It should be noted that the sound-generating structure for a push-button switch disclosed in this invention is an improvement to a specific structure, and the specific control method is not the innovation of this invention. The springs and other components involved in this invention can be common standard parts or components known to those skilled in the art. Their structures, principles, and control methods are all known to those skilled in the art through technical manuals or routine experimental methods.

[0055] The above description is merely a preferred embodiment of the present invention and does not limit the technical scope of the present invention. Therefore, other structures obtained by adopting the same or similar technical features as the above-mentioned embodiments of the present invention are within the scope of protection of the present invention.

Claims

1. A sound-generating structure for a key switch, comprising a base and a guide core disposed on the base, characterized in that: It also includes a sound-emitting member movably arranged between the guide core and the base, and an elastic member with one end fixed on the lower surface of the guide core and the other end arranged on the sound-emitting member. A sound-emitting limiting portion is correspondingly formed on the lower surface of the guide core to limit the sound-emitting member on both sides. At least one sound-emitting limiting groove is formed in the middle of the sound-emitting limiting portion, and the sound-emitting member acts on the sound-emitting limiting groove.

2. The sound-generating structure for a key switch according to claim 1, characterized in that: Both sides of the rear end of the sounding piece are respectively formed with a movable sounding column extending toward the sounding limiting groove and acting on the sounding limiting groove.

3. The sound-generating structure for a key switch according to claim 1, characterized in that: The sound limiting groove is arranged to extend obliquely from the rear lower portion toward the front upper portion.

4. The sound-generating structure for a key switch according to claim 1, characterized in that: A movable limiting column extending outward is formed at the front end of each of the sound-generating members, and a movable limiting groove for the movable limiting column to move is formed at the front end of each of the sound-generating limiting portions.

5. The sound-generating structure for a key switch according to claim 1, characterized in that: The movable limiting groove is rectangular as a whole.

6. The sound-generating structure for a key switch according to claim 1, characterized in that: The bottom of the sound-emitting part is formed with a guiding inclined surface extending obliquely from the rear lower part toward the front lower part, and the base is formed with a movable movable groove for the movement of the sound-emitting part, and the movable movable groove is formed with a limiting step extending toward the front end of the sound-emitting part at the position of the tail end of the sound-emitting part.

7. The sound-generating structure for a key switch according to claim 1, characterized in that: A fixed guide post which is in a cross-conical shape and extends downward is formed on the lower surface of the guide core, and a through limiting groove which matches the fixed guide post is formed in the middle of the sound-emitting component.

8. The sound-generating structure for a key switch according to claim 7, characterized in that: An elastic connection groove extending outward and matching with the elastic member is formed on the outer side of the upper end of the through-limiting groove; the upper end of the elastic member is sleeved on the fixed guide column, and the other end is fixed in the elastic connection groove.

9. The sound-generating structure for a key switch according to claim 1, characterized in that: The elastic member is a spring.

10. The sound-generating structure for a key switch according to claim 1, characterized in that: The front end of the sound-generating member is further provided with a limiting protrusion extending forward.

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