A sound-generating structure for a key switch

Abstract

The utility model discloses a sound-generating structure for a key switch, comprising a base, a guide core arranged on the base, a sound-generating 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 fixed to the sound-generating member, a sound-generating limiting portion is correspondingly formed on the lower surface of the guide core to limit the two sides of the sound-generating member for sounding, at least one sound-generating limiting groove is formed in the middle of the sound-generating limiting portion, and the sound-generating member acts on the sound-generating limiting groove. The sound-generating structure for a key switch provided by the utility model realizes a pressing sound-generating effect, the various structures cooperate closely, the action is smooth, fast, stable and precise, the structure has a long service life, the sound-generating effect is good, and the sound-generating effect will not be reduced after long-term use, thereby improving the user experience.

Description

Technical Field

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

[0002] At present, the sound-generating key switches widely used in the market use a torsion spring to bounce and hit the key switch base or cover to make a sound. However, after long-term use, the torsion spring bounces to an upper limit, causing the torsion spring to deform and no longer bounce, that is, the torsion spring has a short service life, resulting in a significant reduction in the sound effect. Utility Model Content

[0003] In view of the above-mentioned deficiencies, the purpose of the utility model 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 decrease after long-term use, thereby improving the user experience.

[0004] The technical solution adopted by the utility model to achieve the above-mentioned purpose is:

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

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

[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 utility model, a movable limiting column extending outward is formed at the front end of the sound-generating member, and a movable limiting groove for the movable limiting column to move is formed at the front end of the sound-generating limiting portion.

[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 piece is formed with a guiding inclined surface extending obliquely from the lower rear toward the lower front, the base is formed with a movable movable groove for the movement of the sound-emitting piece, and the movable movable groove is formed with a limiting step extending toward the front end of the sound-emitting piece at the position of the tail end of the sound-emitting piece.

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

[0012] As a further improvement of the utility model, 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 utility model 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 pressed sounding 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 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 utility model. The utility model is further described below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is an overall schematic diagram of the utility model;

[0019] Figure 2 It is an explosion diagram of the utility model;

[0020] Figure 3 It is a schematic diagram of the opening of the utility model;

[0021] Figure 4 It is another opening schematic diagram of the utility model;

[0022] Figure 5 It is a structural diagram of the sound-generating component;

[0023] Figure 6 It is a cross-sectional view of the utility model when it is not pressed;

[0024] Figure 7 It is a cross-sectional view of the utility model when it starts to be pressed;

[0025] Figure 8 It is a cross-sectional view of the utility model when it is further pressed;

[0026] Fig. 9 This is a cross-sectional view of the utility model when it strikes and makes a sound;

[0027] Fig.10 It is a cross-sectional view of the utility model when it is 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 explain 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 in conjunction with 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, and do not indicate or imply 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 a limitation on the present invention.

[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0032] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] Please refer to Figures 1 to 10 The embodiment of the utility model provides a sound-generating structure for a push button switch, comprising a base 1, a guide core 2 arranged on the base 1, and also comprising a sound-generating 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-generating member 3, and a sound-generating limiting portion 21 for limiting the two sides of the sound-generating member 3 for sounding is correspondingly formed on the lower surface of the guide core 2, and at least one sound-generating limiting groove 211 is formed in the middle of the sound-generating limiting portion 21, and the sound-generating member 3 acts on the sound-generating limiting groove 211.

[0034] like Figures 1 to 6 As shown, in the unpressed 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. Figures 1 to 5 as well as Figures 7 to 10 As shown, when the guide core 2 is pressed downward, the guide core 2 drives the elastic member 4 and the sound-emitting member 3 to move downward, and one end of the sound-emitting 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-emitting member 3 pressed against the base 1 is tilted, and the sound-emitting member 3 moves laterally and tiltedly from the bottom end of the sound-emitting limit groove 211 to the middle and upper position of the sound-emitting limit groove 211 in the sound-emitting limit groove 211, and the guide core 2 continues to be pressed downward into place, and one end of the sound-emitting 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 gives the sound-emitting member 3 a downward force, and the sound-emitting member 3 enters the base 1, and the sound-emitting member 3 moves from the middle and upper position of the sound-emitting limit groove 211 in the sound-emitting limit groove 211 to the middle and lower position of the sound-emitting 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 FIG. Figures 2 to 3 as well as Figure 5 As shown, the two sides of the rear end of the sounding member 3 are respectively formed with a movable sounding column 31 extending toward the sounding limiting groove 211 and acting on the sounding limiting groove 211, as shown in FIG. Figures 6 to 10 As shown, the movable sounding column 31 moves in the sound limiting groove 211 and is driven by the guide core 2 so as to hit the sound limiting groove 211 to achieve sound. The matching restriction of the movable sounding column 31 in the sound limiting groove 211 limits the moving stroke of the sounding member 3, thereby preventing the sounding member 3 from moving in other directions during being driven by the guide core 2, thereby improving the accuracy and efficiency of the sound.

[0037] The specific method of limiting the sound-generating member 3 by the sound-generating limiting groove 211 is as follows: Figures 2 to 3 as well as Figure 5 As shown, the sound limiting groove 211 is inclined and extends from the lower rear to the upper front, and the movable sounding column 31 is guided by the inclined sound limiting groove 211, thereby limiting 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 making the movable sounding column 31 tilt in the sound limiting groove 211. In addition, the inclined structural setting increases the movement of the movable sounding column 31, and with the elastic restoring force of the elastic member 4, the time when the movable sounding column 31 is driven to hit the sound limiting groove 211 to achieve sounding is staggered with the time when the guide core 2 rebounds, avoiding the problem that the sound of the sounding member 3 is covered or unable to sound due to the same rebound time of the guide core 2 and the sounding time. 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 moving stroke 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 FIG. Figures 2 to 3 as well as Figure 5 As shown, the front end of the sounding member 3 is respectively formed with a movable limiting column 32 extending outward, and the front end of the sounding limiting portion 21 is respectively formed with a movable limiting groove 212 for the movable limiting column 32 to move. Figures 6 to 10 As shown, when the guide core 2 is pressed down or rebounds up, the sounding member 3 is driven by the guide core 2 and the elastic member 4, and the movable limiting column 32 moves in the movable limiting groove 212, so that the movable limiting column 32 is limited in its moving stroke 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 impact of the sounding member 3.

[0039] Preferably, the height of the lowest end of the movable limit groove 212 is higher than the height of the lowest end of the sound limit groove 211, so that the sounding member 3 is easier to perform lateral tilt movement under the cooperation of the sounding limit groove 211 and the movable limit groove 21, which is beneficial to the cooperation between the various components and improves the accuracy and efficiency of the impact of the sounding member 3.

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

[0041] Regarding the specific method of the sounding member 3 pressing against the base 1 and separating from and entering the base 1, as shown in FIG. Figures 2 to 5 As shown, the bottom of the sounding member 3 is formed with a guide slope 33 extending obliquely from the lower rear to the lower front, and the base 1 is formed with a movable slot 11 for the sounding member 3 to move, and the movable slot 11 is formed with a position at the rear end of the sounding member 3 and 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 presses against the limiting step 111, and the sounding member 3 is located at the upper end of the movable slot 11. Figures 6 to 10 As shown, when the guide core 2 is pressed, the sounding member 3 is guided by the guiding inclined surface 33 under the cooperation of the guide core 2 and the elastic member 4, and moves horizontally and obliquely from the limiting step 111 to the edge of the limiting step 111, and then the sounding member 3 is accelerated downward under the elastic restoring force of the elastic member 4, and the sounding member 3 is separated from the limiting step 111 and enters the lower end of the movable moving groove 11, at which time the movable sounding column 31 hits the sound limiting groove 211 to achieve sound. By setting the movable moving groove 11, the sounding member 3 can move horizontally and radially between the base 1 and the guide core 2 to achieve sound. By forming a limiting step 111 extending toward the front end of the sounding member 3 at the position of 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 to produce sound, which is beneficial to improve the sound of the impact.

[0042] In order to further prevent the sounding member 3 from moving excessively, Figure 3 and Figure 5 As shown, a fixed guide post 22 is formed on the lower surface of the guide core 2 in a cross-conical shape and extending downward, and a through-limiting groove 34 matching the fixed guide post 22 is formed in the middle of the sound-generating member 3. Figures 6 to 10 As shown, when the guide core 2 is pressed downward, the fixed guide column 22 penetrates or partially penetrates into the through-limiting groove 34, so that the sounding member 3 is limited by the fixed guide column 22 during the movement, preventing the sounding member 3 from moving excessively, facilitating the coordination between the various components, and further improving the accuracy and efficiency of the impact of the sounding member 3.

[0043] In order to further prevent the sounding member 3 from moving excessively, Figure 3 as well as Figure 5 As shown, the front end of the sounding member 3 is also provided with a limiting protrusion 36 extending forward, as shown in FIG. Figures 6 to 10 As shown, the limiting protrusion 36 presses against the front end of the movable movable groove 11 when the rear end of the sound-generating member 3 is out of the limiting step 111, and after pressing, it applies a backward force to the sound-generating member 3, so that the sound-generating member 3 enters the movable movable groove 11, further preventing the excessive movement of the sound-generating member and facilitating the coordination of the various components.

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

[0045] Regarding the specific manner in which the elastic member 4 acts on the sound-generating member 3, as shown in FIG. Figures 2 to 3 as well as Figure 5 As shown, an elastic connecting groove 35 extending outward and matching with 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, Figures 2 to 3 As shown, the elastic member 4 is a spring, which has low price, good fatigue resistance, high stability and long service life, and is beneficial to improving the practicality of the sound-generating structure, reducing the production cost of the sound-generating structure and ensuring the service life of the sound-generating mechanism.

[0047] Other structures in the key 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] like Figure 6 As shown, in the unpressed state, the rear end of the sounding member 3 presses against the limiting step 111 , the movable sounding column 31 is located at the lowest end of the sound 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] like Figures 7 and 8 As shown, 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 guiding 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 in 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] like Figures 9 and 10 As shown, 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 guiding 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 produce a sound.

[0052] The guide core 2 is released, and the guide core 2 moves upward, and the sounding member 3 is reset to a non-pressed state driven by the guide core 2, waiting for the next use.

[0053] The various structures cooperate closely with each other, 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 key switch disclosed in the utility model is an improvement on a specific structure, and the specific control method is not the innovation point of the utility model. The springs and other components involved in the utility model can be general standard parts or components known to those skilled in the art, and their structures, principles and control methods are all known to those skilled in the art through technical manuals or conventional experimental methods.

[0055] The above description is only 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 embodiments of the present invention are within the protection scope 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 component movably arranged between the guide core and the base, and an elastic component with one end fixed to the lower surface of the guide core and the other end arranged on the sound-emitting component, and a sound limiting portion is correspondingly formed on the lower surface of the guide core to limit the sound-emitting component on both sides, and at least one sound limiting groove is formed in the middle of the sound limiting portion, and the sound-emitting component acts on the sound 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 sound-generating member are respectively formed with a movable sound-generating column extending toward the sound-generating limiting groove and acting on the sound-generating 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 lower rear portion toward the upper front 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 components, and a movable limiting groove for movement of each of the movable limiting columns 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 4, 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 member is formed with a guiding inclined surface extending obliquely from the lower rear toward the lower front, the base is formed with a movable movable groove for the movement of the sound-emitting member, and the movable movable groove is formed with a limiting step extending toward the front end of the sound-emitting member at the position of the tail end of the sound-emitting member.

7. The sound-generating structure for a key switch according to claim 1, characterized in that: A fixed guide column 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 column is formed in the middle of the sound-generating member.

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 also provided with a limiting protrusion extending forward.

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