Silent switch-on structure of a three-legged light microswitch

Abstract

The utility model discloses a mute conduction structure of three -legged light microswitch, including base, shell, guide core still includes first terminal, second terminal, third terminal and sets up on the dynamic spring leaf of first terminal, second terminal, third terminal, guide core is located between first terminal and second terminal and is pressed on dynamic spring leaf, one end of dynamic spring leaf is hooked on the upper portion of third terminal, the middle part is hooked on second terminal, and its other end is contacted with first terminal and is conducted under the action force of guide core underpressure and connects. The utility model discloses through change the position of guide core pressing, makes only pressing dynamic spring leaf when guide core pressing, does not impact contact with base and other components, reduces the sound produced when pressing, and sets up the buffer piece on dynamic spring leaf, and the force buffer when dynamic spring leaf and first terminal contact, thereby the sound produced when contacting, reach the effect of mute, satisfy people's demand to mute, improve people's use experience.

Description

Technical Field

[0001] This utility model relates to the field of mouse micro-switch technology, and in particular to a silent conduction structure for a three-pronged optical micro-switch. Background Technology

[0002] With the widespread use of computers, the number of computer-related peripherals has also increased. The mouse, as an input device, is an indispensable component of a computer. The microswitch inside the mouse is a component triggered by an internal metal spring. When a button on the mouse is pressed, the silver dot at the front of the metal spring in the microswitch triggers the contact pin below, causing the circuit to conduct and sending an electrical signal to the computer, before resetting. Conventional microswitches include micro tactile switches and micro touch switches. Micro tactile switches offer a better tactile feel, but the clicking sound produced by the contacts is relatively loud, making them unsuitable for quiet environments and failing to meet the need for silent operation. Utility Model Content

[0003] To address the aforementioned shortcomings, the purpose of this utility model is to provide a silent conduction structure for a three-pronged optical micro switch. By changing the pressing position of the guide core, the guide core only presses the moving spring when pressed, without impacting or contacting components such as the base, thereby reducing the sound generated during pressing. Furthermore, a buffer is provided on the contact point in the moving spring to effectively buffer the force when the moving spring contacts the first terminal, thereby reducing the sound generated when the moving spring contacts the first terminal. Overall, a silent effect is achieved, meeting people's demand for quiet operation and improving the user experience.

[0004] The technical solution adopted by this utility model to achieve the above objectives is as follows: A silent conduction structure for a three-pronged optical micro switch includes a base, a housing disposed on the base, a guide core movably disposed between the base and the housing, a first terminal disposed on the base and extending downward through the base, a second terminal disposed on the base and extending downward through the base, a third terminal disposed on the base and extending downward through the base, and a movable spring disposed on the first terminal, the second terminal, and the third terminal; the guide core is located between the first terminal and the second terminal and presses against the movable spring; one end of the movable spring is hooked on the upper part of the third terminal, the middle part is hooked on the second terminal, and the other end contacts and conducts a connection with the first terminal under the downward pressure of the guide core.

[0005] As a further improvement of this utility model, a buffer is provided on the movable spring opposite the position of the first terminal.

[0006] As a further improvement of this utility model, the buffer includes an upper buffer frustum protruding upward and a lower buffer frustum protruding downward. The movable spring has a buffer mounting hole at the position opposite to the first terminal, and the buffer mounting hole is engaged between the upper buffer frustum and the lower buffer frustum.

[0007] As a further improvement of this utility model, the diameter of the upper buffer frustum is smaller than the diameter of the lower buffer frustum.

[0008] As a further improvement of this utility model, the upper part of the first terminal is located at the position of the lower buffer frustum and has a first terminal contact that is triangular in shape and protrudes upward.

[0009] As a further improvement of this utility model, a limiting part in the shape of "「" is formed on one end of the base near the first terminal, and the upper surface of the upper buffer round platform abuts against the lateral part of the limiting part.

[0010] As a further improvement of this utility model, the lower section of the lateral part of the limiting part has a downwardly protruding limiting protrusion formed on the position of the upper buffer truncated cone.

[0011] As a further improvement of this utility model, the middle part of the moving spring is formed with an elastic reset part having one end hooked on the second terminal and bent downward as a whole, and the upper end of the second terminal is formed with a reset mounting groove for one end of the elastic reset part to be inserted into the hook, and the guide core abuts against the connecting parts on both sides of the elastic reset part in the moving spring.

[0012] As a further improvement of this utility model, the guide core presses against the end of the connecting portion on both sides of the elastic reset part of the moving spring near the first terminal.

[0013] As a further improvement of this utility model, the upper end of the third terminal is formed with a central mounting groove for one end of the moving spring to be inserted into the hook for hooking.

[0014] The beneficial effects of this utility model are as follows: This silent conductive structure comprises a base, a housing mounted on the base, a guide core movably disposed between the base and the housing, a first terminal mounted on the base and extending downward through the base, a second terminal mounted on the base and extending downward through the base, a third terminal mounted on the base and extending downward through the base, and a movable spring disposed on the first, second, and third terminals. The guide core is located between the first and second terminals and presses against the movable spring. One end of the movable spring is hooked onto the upper part of the third terminal, and its middle part is hooked onto the second terminal. The other end of the movable spring contacts and connects to the first terminal under the downward pressure of the guide core. Under the action of an external force, the guide core moves downward and presses against the movable spring, causing the end of the movable spring near the first terminal to move downward and contact the first terminal, thus achieving conductivity between the movable spring and the first terminal and realizing the purpose of signal transmission. By positioning the guide core between the first and second terminals, with a large space reserved between the first and second terminals for the movable spring to move up and down, the guide core only presses the movable spring when pressed, without impacting or contacting components such as the base. This reduces the noise generated during pressing, achieving a silent effect, meeting people's need for quiet operation, and improving the user experience.

[0015] 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

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model after removing the outer shell; Figure 3 This is an exploded view of the present invention after the outer shell has been removed; Figure 4 This is a schematic diagram of the moving spring. Figure 5 This is a schematic diagram of the base structure; In the diagram: 1. Base; 11. Limiting part; 111. Upper limit protrusion; 12. First pin; 13. Second pin; 14. Third pin; 2. Housing; 3. Guide core; 4. First terminal; 41. First terminal contact; 5. Second terminal; 51. Reset mounting groove; 6. Third terminal; 61. Shaft mounting groove; 7. Moving spring; 71. Buffer mounting hole; 72. Elastic reset part; 8. Buffer component; 81. Upper buffer frustum; 82. Lower buffer frustum; Detailed Implementation

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] Please refer to Figures 1 to 5 This utility model provides a silent conduction structure for a three-pronged optical micro switch, including a base 1, a housing 2 disposed on the base 1, a guide core 3 movably disposed between the base 1 and the housing 2, a first terminal 4 disposed on the base 1 and extending downward through the base 1, a second terminal 5 disposed on the base 1 and extending downward through the base 1, a third terminal 6 disposed on the base 1 and extending downward through the base 1, and a movable spring 7 disposed on the first terminal 4, the second terminal 5, and the third terminal 6; the guide core 3 is located between the first terminal 4 and the second terminal 5 and presses against the movable spring 7; one end of the movable spring 7 is hooked on the upper part of the third terminal 6, the middle part is hooked on the second terminal 5, and the other end contacts and conducts a connection with the first terminal 4 under the pressure of the guide core 3.

[0022] Under the action of external force, the guide core 3 moves downward and presses against the movable spring 7, causing the end of the movable spring 7 near the first terminal 4 to move downward and contact the first terminal 4, thus achieving conductivity between the movable spring 7 and the first terminal 4 and realizing the purpose of signal transmission. By positioning the guide core 3 between the movable spring 7 and the first terminal 4 and the second terminal 5, with a large space reserved between the first terminal 4 and the second terminal 5 for the movable spring 7 to move up and down, the guide core 3 only presses the movable spring 7 when pressed, without impacting or contacting components such as the base 1, thereby reducing the sound generated when pressing, achieving a silent effect, meeting people's demand for quietness, and improving the user experience.

[0023] Preferred, such as Figures 2 to 3 As shown, in order to reduce the impact noise when the movable spring 7 and the first terminal 4 are pressed together, a buffer 8 is provided on the movable spring 7 opposite the first terminal 4. When one end of the movable spring 7 is driven downward by the guide core 3, the buffer 8 on it first contacts the first terminal 4. Under the buffering effect of the buffer 8, the downward force of the movable spring 7 is reduced, thereby reducing the noise generated by the collision between the movable spring 7 and the first terminal 4, achieving a silent effect, meeting people's demand for quietness, and improving people's user experience.

[0024] Regarding the specific structural configuration of the buffer 8, as follows: Figures 2 to 3 As shown, the buffer 8 includes an upwardly protruding upper buffer frustum 81 and a downwardly protruding lower buffer frustum 82. A buffer mounting hole 71 is formed on the movable spring 7 opposite the first terminal 4, and the buffer mounting hole 71 is engaged between the upper buffer frustum 81 and the lower buffer frustum 82. The upper buffer frustum 81 buffers the impact force of the movable spring 7 striking the base 1 during its reset and upward movement, thereby reducing the sound generated by the upward impact of the movable spring 7. The lower buffer frustum 82 buffers the impact force of the movable spring 7 striking the first end when it is driven downward by the guide core 3, thereby reducing the sound generated by the downward impact of the movable spring 7. The two buffers work together to effectively buffer the upward and downward movement of the movable spring 7, achieving an overall silent effect, meeting people's demand for quiet operation, and improving the user experience.

[0025] Preferred, such as Figures 2 to 3 As shown, the diameter of the upper buffer frustum 81 is smaller than the diameter of the lower buffer frustum 82, thus matching the structure setting that creates a greater downward impact force when the moving spring 7 is pressed by the guide core 3. This makes it easier for the buffer member 8 to buffer the downward impact force of the moving spring 7 over a wider range, improving the buffering efficiency, ensuring the quietness efficiency of this silent conduction structure, meeting people's needs for quietness, and improving people's user experience.

[0026] Regarding the specific manner in which the first terminal 4 contacts the moving spring 7, as follows: Figures 2 to 3 as well as Figure 5 As shown, the upper part of the first terminal 4, located at the position of the lower buffer frustum 82, forms a first terminal contact 41 that is triangular in shape and protrudes upwards. By setting the first terminal contact 41 to a triangular shape, it uses a point instead of a surface, resulting in a smaller contact area. This is more conducive to reducing the sound generated when the moving spring 7 moves downwards and collides, thereby achieving a silent effect, meeting people's demand for quietness, and improving the user experience. By setting it to an upwardly protruding structure, the distance between it and the bottom of the base 1 is larger, the stroke of the guide core 3 when pressed down is shorter, and the stroke of the guide core 3 after it is pressed down to the base 1 is greater. This makes it easier to avoid collision and contact with components such as the base 1, thereby effectively reducing the sound generated when pressing, achieving a silent effect, meeting people's demand for quietness, and improving the user experience.

[0027] To prevent the moving spring 7 from over-resetting, such as Figures 2 to 3 as well as Figure 5 As shown, a limiting part 11 in the shape of a "「" is formed on one end of the base 1 near the first terminal 4. When the moving spring 7 loses the pressure of the guide core 3, the upper end surface of the upper buffer truncated cone 81 moves upward under its own elastic restoring force until it presses against the lateral part of the limiting part 11. When used again, by setting the limiting part 11 on the base 1, the situation where the moving spring 7 moves too upward under its own elastic restoring force, causing the silent conduction structure to malfunction, is effectively prevented, thus ensuring the stable use of the silent conduction structure.

[0028] Preferred, such as Figures 2 to 3 as well as Figure 5 As shown, the lower cross-section of the lateral portion of the limiting part 11 has a downwardly protruding upper limit protrusion 111 positioned opposite the upper buffer frustum 81. When the movable spring 7 returns to its upward position under its own elastic restoring force, the upper buffer frustum 81 is driven by the movable spring 7 to press upward against the upper limit protrusion 111, thereby limiting the stroke of the upper limit protrusion 111 and preventing the movable spring 7 from moving excessively upward, which could lead to malfunction. By setting the upper limit protrusion 111 to a downwardly protruding structure, the movable spring 7 can more easily press against the upper limit protrusion 111, achieving a better limiting effect.

[0029] The specific method for elastically resetting the movable spring 7 is as follows: Figures 2 to 5As shown, the movable spring 7 has an elastic reset portion 72 formed in the middle, with one end hooked onto the second terminal 5 and bent downwards. The upper end of the second terminal 5 has a reset mounting groove 51 for one end of the elastic reset portion 72 to be inserted into the hook. The guide core 3 presses against the connecting portions on both sides of the elastic reset portion 72 in the movable spring 7. Under the action of an external force, the guide core 3 presses downwards against the connecting portions on both sides of the elastic reset portion 72 in the movable spring 7, pressing the connecting portions downwards and causing the connecting portions and the elastic reset portion 72 to deform under pressure. After the guide core 3 loses the applied external force, the elastic reset portion 72 and the connecting portions on both sides move the entire movable spring 7 upwards under their own elastic restoring force, thereby completing the spring's reset purpose. By setting the elastic reset portion 72 to a downwardly bent shape, its structure has a greater elastic restoring force when deformed by applied force, making it easier to move the entire movable spring 7 upwards and reset, improving the reset efficiency of the movable spring 7 and ensuring the normal operation of this silent conductive structure. By providing a reset mounting groove 51 at the upper end of the second terminal 5 for one end of the elastic reset part 72 to be inserted and hooked, the embedded structure effectively prevents one end of the elastic reset part 72 from falling off. One end of the elastic reset part 72 rotates up and down around the reset mounting groove 51 as the axis, effectively ensuring the operation of this silent conduction structure.

[0030] Preferred, such as Figure 4 As shown, a notch is formed in the middle of one end of the elastic reset part 27, which can be inserted into the reset mounting groove 51. The elastic reset part 27 is inserted into the reset mounting groove 51 through the notch, which further prevents the elastic reset part 27 from falling off and ensures the operation of this silent conduction structure.

[0031] Preferred, such as Figures 2 to 3 as well as Figure 5 As shown, the lower end of the reset mounting groove 51 has an inclined guide surface that extends from the lower part of the first terminal 4 to the upper part of the third terminal 6. The angle of inclination is more in line with the bending angle of the elastic reset part 72 when it is pressed downward. This ensures that the reset mounting groove 51 stably limits the elastic reset part 72 and prevents it from falling off, without hindering the operation of the elastic reset part 72.

[0032] Preferred, such as Figures 2 to 3 as well as Figure 5 As shown, a triangular limiting plate is formed at the upper end of the reset mounting groove 51, and the inclined structure at the lower end is more in line with the upward reset movement trajectory of the elastic reset part 72. Thus, without hindering the operation of the elastic reset part 72, the reset mounting groove 51 stably limits the elastic reset part 72 and prevents the elastic reset part 72 from falling off.

[0033] Preferred, such as Figures 2 to 3 As shown, in order to better drive the movable spring 7 and the first terminal 4 to make contact and conduction, the guide core 3 presses against the end of the movable spring 7 located on both sides of the elastic reset part 72 near the first terminal 4. This makes it easier for the guide core 3 to drive the movable spring 7 closer to the side of the first terminal 4, so that the lower buffer frustum 82 contacts the first terminal contact 41 on the first terminal 4, thereby improving the conduction efficiency and accuracy of this silent conduction structure and effectively improving the user experience.

[0034] Regarding the specific method by which the movable spring 7 is hooked onto the third terminal 6, as follows: Figures 2 to 3 as well as Figure 5 As shown, the upper end of the third terminal 6 is formed with a central mounting groove 61 for one end of the movable spring 7 to be inserted and hooked. The opening of the central mounting groove 61 faces outward, which better matches the hooking action of the movable spring 7 and facilitates the limited installation of the movable spring 7. The entire movable spring 7 rotates up and down around the central mounting groove 61 as the axis, effectively ensuring the operation of this silent conduction structure.

[0035] Preferred, such as Figure 4 As shown, the movable spring 7 has an outwardly protruding notch at one end near the third terminal 6 that is embedded in the shaft mounting groove 61. The movable spring 7 is secured to the third terminal by the notch, thereby ensuring the operation of this silent conduction structure.

[0036] Preferred, such as Figures 2 to 3 as well as Figure 5 As shown, the lower end of the shaft mounting groove 61 has an inclined guide surface that extends from the inside upward to the outside westward. The angle of inclination is more in line with the action angle of the moving spring 7 when it is reset upward, thereby effectively ensuring the stable installation effect of the shaft mounting groove 61 on the moving spring 7 and preventing the moving spring 7 from falling off during use.

[0037] Preferred, such as Figures 2 to 3 as well as Figure 5 As shown, a triangular limiting plate is formed on the outer side of the upper end of the shaft mounting groove 61. The inclined structure at the lower end is more in line with the upward reset motion trajectory of the moving spring 7, so as to ensure that the shaft mounting groove 61 stably limits the moving spring 7 and prevents the moving spring 7 from falling off without hindering the operation of the moving spring 7.

[0038] Regarding the specific method of conducting the first terminal 4, the second terminal 5, and the third terminal 6, the first terminal 4 and the third terminal 6 can be respectively mounted on the PCB board of the mouse to achieve external transmission. Preferably, the second terminal 5 and the third terminal 6 can be connected to each other as common terminals. Figures 1 to 3 as well as Figure 5 As shown, the lower end of the base 1 has a first pin 12, a second pin 13, and a third pin 14 extending downward and placed into the PCB board. The first pin 12 is connected to the first terminal 4, the second pin 13 is connected to the second terminal 5, and the third pin 14 is connected to the third terminal 6. The first pin 12, the second pin 13, and the third pin 14 have the same shape, with their bottom ends in the shape of arrows. The arrow shape has guide slopes on both sides that slope from the upper outside to the lower inside, so that the first pin 12, the second pin 13, and the third pin 14 can be more easily and accurately placed into the PCB board under the guidance of the guide slopes, achieving accurate installation and conduction of the first pin 12, the second pin 13, and the third pin 14, ensuring the stable conduction of this silent conduction structure. A recessed slot is formed on each side above the arrow, so that the first pin 12, the second pin 13, and the third pin 14 can be locked onto the PCB board after being placed in it, achieving stable installation of this silent conduction structure.

[0039] It should be noted that the silent conduction structure 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 shell, conductor, PCB board, 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.

[0040] 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 silent conduction structure for a three-pronged optical micro switch, comprising a base, a housing disposed on the base, and a conductor movably disposed between the base and the housing, characterized in that: It also includes a first terminal disposed on the base and extending downward through the base, a second terminal disposed on the base and extending downward through the base, a third terminal disposed on the base and extending downward through the base, and a movable spring disposed on the first terminal, the second terminal, and the third terminal; the guide core is located between the first terminal and the second terminal and presses against the movable spring; one end of the movable spring is hooked on the upper part of the third terminal, the middle part is hooked on the second terminal, and the other end contacts and conducts a connection with the first terminal under the downward pressure of the guide core.

2. The silent conduction structure according to claim 1, characterized in that: A buffer is provided at the position of the movable spring opposite the first terminal.

3. The silent conduction structure according to claim 2, characterized in that: The buffer includes an upper buffer truncated cone extending upward and a lower buffer truncated cone extending downward. The movable spring has a buffer mounting hole at the position opposite the first terminal, and the buffer mounting hole is engaged between the upper buffer truncated cone and the lower buffer truncated cone.

4. The silent conduction structure according to claim 3, characterized in that: The diameter of the upper buffer frustum is smaller than the diameter of the lower buffer frustum.

5. The silent conduction structure according to claim 3, characterized in that: The upper part of the first terminal is located at the position of the lower buffer frustum and has a first terminal contact that is triangular in shape and protrudes upward.

6. The silent conduction structure according to claim 3, characterized in that: A limiting part in the shape of a "「" is formed on one end of the base near the first terminal, and the upper surface of the upper buffer platform abuts against the lateral part of the limiting part.

7. The silent conduction structure according to claim 6, characterized in that: The lower section of the lateral portion of the limiting part has a downwardly protruding limiting protrusion positioned opposite the upper buffer frustum.

8. The silent conduction structure according to claim 1, characterized in that: The moving spring has an elastic reset portion formed in the middle, one end of which is hooked onto the second terminal and bent downwards. The upper end of the second terminal has a reset mounting groove for one end of the elastic reset portion to be inserted into the hook. The guide core presses against the connecting parts on both sides of the elastic reset portion in the moving spring.

9. The silent conduction structure according to claim 8, characterized in that: The guide core presses against the end of the connecting portion on both sides of the elastic reset part of the moving spring, near the first terminal.

10. The silent conduction structure according to claim 1, characterized in that: The upper end of the third terminal has a central mounting groove for one end of the moving spring to be inserted into and hooked.

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