keyboard

Abstract

A keyboard includes a circuit board and a key device. The key device is arranged above the circuit board and includes a housing, a switch button, a key cap, a sleeve and a connector. The switch button is arranged on the housing and is configured to move relative to the housing in a first axial direction. The key cap is located above the switch button and has a guide structure. The sleeve is sleeved on the switch button. The connector connects the guide structure and the sleeve. The guide structure is configured to guide the key cap to move relative to the switch button in a second axial direction via the connector.

Description

Technical Field

[0001] The present disclosure relates to a keyboard. Background Art

[0002] In terms of current usage habits of personal computers, the keyboard is one of the indispensable input devices for inputting text or numbers. Moreover, all consumer electronic products contacted in daily life or large-scale processing equipment used in the industrial sector need to be equipped with buttons as input devices to operate the above-mentioned electronic products and processing equipment.

[0003] For existing keyboards, it is usually necessary to press combination keys (such as the Shift key plus another key) to trigger special functions. Therefore, the user may need to use both hands for input and cannot do other things (such as moving the mouse or using a stylus). In addition, due to size limitations, keyboards often cannot add more keys. Therefore, if the user wants to customize other functions, they must also set combination keys of two or more keys.

[0004] Therefore, how to propose a keyboard that can solve the above problems is one of the problems that the industry is eager to invest in research and development resources to solve currently. Summary of the Invention

[0005] In view of this, an object of the present disclosure is to propose a keyboard that can solve the above problems.

[0006] To achieve the above object, according to an embodiment of the present disclosure, a keyboard includes a circuit board and a key device. The key device is disposed above the circuit board and includes a housing, a switch key, a keycap, a socket member, and a connecting member. The switch key is disposed on the housing and is configured to move relative to the housing in a first axial direction. The keycap is located above the switch key and has a guiding structure. The socket member is sleeved on the switch key. The connecting member connects the guiding structure and the socket member. The guiding structure is configured to guide the keycap to move relative to the switch key in a second axial direction via the connecting member.

[0007] In one or more embodiments of the present disclosure, the guiding structure includes a chute. The chute extends along the second axial direction. The connecting member is a pin. The pin is rotatably connected to the socket member and is slidably connected to the chute.

[0008] In one or more embodiments of the present disclosure, the keycap includes a pressing portion. The pressing portion has a bottom surface. The second axial direction is inclined relative to the bottom surface.

[0009] In one or more embodiments of the present disclosure, the guiding structure includes another chute. This another chute extends along the second axial direction. The key device further includes another connecting member. This another connecting member connects the socket member and is slidably connected to this another chute.

[0010] In one or more embodiments of the present disclosure, the keycap is configured to move between a first lateral position and a second lateral position relative to the switch button along a second axial direction. When the keycap moves from the first lateral position to the second lateral position, the switch button moves from the center of the keycap to the edge.

[0011] In one or more embodiments of the present disclosure, the key button device further includes a reset member. The reset member is disposed between the keycap and the socket member and is configured to reset the keycap to the first lateral position.

[0012] In one or more embodiments of the present disclosure, the keycap includes a connected pressing portion and a side wall portion. The reset member includes a thimble. The thimble abuts against the side wall portion.

[0013] In one or more embodiments of the present disclosure, the socket member has a groove. The thimble is slidably sleeved with the groove. The reset member further includes an elastomer disposed between the thimble and the socket member.

[0014] In one or more embodiments of the present disclosure, the thimble has a receiving groove. The groove and the receiving groove jointly receive the elastomer.

[0015] In one or more embodiments of the present disclosure, the bottom surface of the keycap has a reflection area. The key button device further includes a displacement sensing component disposed on the housing. When the keycap moves from the first lateral position to the second lateral position, the displacement sensing component leaves directly below the reflection area in a first axial direction.

[0016] In one or more embodiments of the present disclosure, the housing has a sleeve portion. The sleeve portion surrounds the switch button. The keycap includes a stop rib. When the keycap is in the first lateral position, the stop rib is offset from the sleeve portion in a first axial direction. When the keycap is in the second lateral position, the stop rib is opposite to the sleeve portion in a first axial direction.

[0017] In one or more embodiments of the present disclosure, the keycap includes a stop rib. When the keycap is in the first lateral position and the second lateral position respectively, the stop rib is respectively at a first distance and a second distance from the housing in a first axial direction. The second distance is less than the first distance.

[0018] In one or more embodiments of the present disclosure, the keycap is further configured to move a third distance from a first longitudinal position to a second longitudinal position relative to the housing along a first axial direction. The third distance is less than the first distance and greater than the second distance.

[0019] In one or more embodiments of the present disclosure, the key button device further includes a reset member. The reset member is disposed between the housing and the switch button and is configured to reset the keycap to the first longitudinal position.

[0020] In summary, in the keyboard disclosed in the present invention, the keycap of the key device is coupled to the switch key via a socket and a connector, so that the keycap can not only move along the first axial direction to trigger the switch key, but also move laterally relative to the switch key in a second axial direction. Therefore, in addition to generating a pressing signal by pressing the keycap, the key device disclosed in the present invention can also generate a lateral triggering signal by pushing the keycap laterally. By designing the second axial direction to be inclined relative to the bottom surface of the keycap, the lateral shaking of the keycap relative to the switch key can be effectively avoided. By providing a stop rib on the keycap that can generate structural interference with the housing of the key device, it can be avoided that the keycap triggers the switch key simultaneously when moving laterally relative to the switch key, thereby effectively avoiding misoperation of the key device.

[0021] The above description is only used to illustrate the problems to be solved by the present disclosure, the technical means to solve the problems, and the effects produced, etc. The specific details of the present disclosure will be introduced in detail in the following implementation methods and related drawings. Brief Description of the Figures

[0022] In order to make the above and other purposes, features, advantages and embodiments of the present disclosure more obvious and understandable, the attached drawings are described as follows:

[0023] Figure 1 This is a perspective view showing a keyboard according to an embodiment of the present disclosure.

[0024] Figure 2 This is a three-dimensional diagram showing a circuit board and a key device according to an embodiment of the present disclosure.

[0025] Figure 3 To show Figure 2 Exploded view of the button mechanism in .

[0026] Figure 4 To show Figure 2 A three-dimensional image of the keycaps in .

[0027] Figure 5A To show Figure 2 A cross-sectional view of the key device in along line segment 5A-5A.

[0028] Figure 5B To show Figure 2 Another cross-sectional view of the key device in along line segment 5A-5A.

[0029] Figure 5C To show Figure 2 Another cross-sectional view of the key device in along line segment 5A-5A.

[0030] Figure 6A To show Figure 5A Bottom view of some components in .

[0031] Figure 6B An elevation view showing partial components Figure 5C in

[0032] Description of reference numerals:

[0033] 100: Keyboard

[0034] 110: Housing

[0035] 120: Circuit board

[0036] 130: Button device

[0037] 131: Housing

[0038] 131a: Sleeve portion

[0039] 132: Switch button

[0040] 133: Keycap

[0041] 133a: Pressing portion

[0042] 133a1: Bottom surface

[0043] 133a2: Reflection area

[0044] 133b: Side wall portion

[0045] 133c1, 133c2: Slide groove

[0046] 133d: Stopping rib

[0047] 134: Socket part

[0048] 134a: Engaging groove

[0049] 134b, 135: Connecting part

[0050] 134c: Groove

[0051] 136, 137: Reset part

[0052] 136a: Thumb pin

[0053] 136a1: Accommodating groove

[0054] 136b: Elastic body

[0055] 138: Displacement sensing component

[0056] 139: Light source

[0057] A1: First axis

[0058] A2: Second axis

[0059] D1: First distance

[0060] D2: Second distance

[0061] D3: Third distance Detailed implementation manners

[0062] Multiple implementation manners of the present disclosure will be disclosed below with reference to the drawings. For the sake of clear illustration, many practical details will be described together in the following description. However, it should be understood that these practical details are not used to limit the present disclosure. That is to say, in some implementation manners of the present disclosure, these practical details are not necessary. In addition, for the sake of simplifying the drawings, some conventional structures and components will be shown in a simple schematic manner in the drawings.

[0063] Please refer to Figure 1 . Figure 1 To show a perspective view of a keyboard 100 according to an implementation manner of the present disclosure. As Figure 1 shown, the keyboard 100 includes a housing 110 and a plurality of key devices 130. The keyboard 100 of the present implementation manner can be an external keyboard for a desktop computer (for example, a keyboard with a PS2 interface or a USB interface) or an input device including a key form, but is not limited thereto. In other words, the concept of the keyboard 100 of the present disclosure can be applied to any electronic product that uses pressing as an input method.

[0064] Please refer to Figures 2 to 5A . Figure 2 To show a perspective view of a circuit board 120 and a key device 130 according to an implementation manner of the present disclosure. Figure 3 To show Figure 2 an exploded view of the key device 130 in Figure 4 To show Figure 2 a perspective view of the keycap 133 in Figure 5A To show Figure 2 a cross-sectional view of the key device 130 in Figures 2 to 5A along the line segment 5A-5A. As Figures 2 to 5A shown, in the present implementation manner, the keyboard 100 further includes a circuit board 120. The circuit board 120 is disposed within the housing 110. The key device 130 is disposed above the circuit board 120 and includes a housing 131, a switch key 132, a keycap 133, a socket member 134, and a connecting member 135. The switch key 132 is disposed on the housing 131 and is configured to move relative to the housing 131 in a first axial direction A1. The keycap 133 is located above the switch key 132 and has a guiding structure. The socket member 134 is sleeved on the switch key 132. The connecting member 135 connects the guiding structure and the socket member 134. The guiding structure is configured to guide the keycap 133 to move laterally relative to the switch key 132, such as moving in a second axial direction A2 (see Figure 5A ).

[0065] Specifically, as Figure 3 shown, the socket member 134 has a latching groove 134a. The latching groove 134a is sleeved on the switch button 132. As Figure 5A shown, the guiding structure includes two sliding grooves 133c1. The two sliding grooves 133c1 extend along the second axial direction A2 and are symmetrically arranged. The two sliding grooves 133c1 are respectively arranged close to the opposite sides of the keycap 133, and a part of the socket member 134 is located between the two sliding grooves 133c1. The connecting member 135 is slidably connected to the sliding groove 133c1. The sliding groove 133c1 has an open end and a closed end. Therefore, the connecting member 135 can enter the sliding groove 133c1 from the open end and can abut against the closed end. Figure 4 shown, the guiding structure includes two sliding grooves 133c1. The two sliding grooves 133c1 extend along the second axial direction A2 and are symmetrically arranged. The two sliding grooves 133c1 are respectively arranged close to the opposite sides of the keycap 133, and a part of the socket member 134 is located between the two sliding grooves 133c1. The connecting member 135 is slidably connected to the sliding groove 133c1. The sliding groove 133c1 has an open end and a closed end. Therefore, the connecting member 135 can enter the sliding groove 133c1 from the open end and can abut against the closed end.

[0066] In some embodiments, as Figure 3 shown, the connecting member 135 is a pin, and its extending direction is substantially perpendicular to the first axial direction A1 and the second axial direction A2. The pin is rotatably connected to the socket member 134, and the two ends of the pin are respectively slidably connected to the two sliding grooves 133c1. Thus, the connecting member 135 can slide and roll in the sliding groove 133c1, thereby effectively increasing the smoothness of the movement of the keycap 133 relative to the socket member 134 via the connecting member 135. In some other embodiments, the number of the sliding grooves 133c1 can also be only one. The connecting member 135 is a pin, and the pin can slide and roll in the sliding groove 133c1.

[0067] In some other embodiments, the socket member 134 and the connecting member 135 can also be a single body structure formed of the same material.

[0068] As Figure 3 shown, the guiding structure of the keycap 133 further includes two sliding grooves 133c2. These two sliding grooves 133c2 extend along the second axial direction A2. That is, the extending directions of the sliding grooves 133c1 and 133c2 are the same. The sliding grooves 133c1 and 133c2 are also staggered in the front and back directions along the second axial direction A2. The key button device 130 further includes another connecting member 134b. This another connecting member 134b is connected to the socket member 134, and the two ends of the connecting member 134b are respectively slidably connected to the two sliding grooves 133c2. Through the structural configuration in which the two connecting members 135 and 134b are respectively connected to the two pairs of sliding grooves 133c1 and 133c2, when the keycap 133 makes a lateral movement relative to the switch button 132 along the second axial direction A2, the keycap 133 can be effectively prevented from rotating relative to the switch button 132. Figure 5A shown, the guiding structure of the keycap 133 further includes two sliding grooves 133c2. These two sliding grooves 133c2 extend along the second axial direction A2. That is, the extending directions of the sliding grooves 133c1 and 133c2 are the same. The sliding grooves 133c1 and 133c2 are also staggered in the front and back directions along the second axial direction A2. The key button device 130 further includes another connecting member 134b. This another connecting member 134b is connected to the socket member 134, and the two ends of the connecting member 134b are respectively slidably connected to the two sliding grooves 133c2. Through the structural configuration in which the two connecting members 135 and 134b are respectively connected to the two pairs of sliding grooves 133c1 and 133c2, when the keycap 133 makes a lateral movement relative to the switch button 132 along the second axial direction A2, the keycap 133 can be effectively prevented from rotating relative to the switch button 132.

[0069] In some embodiments, the connecting member 134b is a part integrally formed with the socket member 134, but the present disclosure is not limited thereto. In some embodiments, as Figure 3 shown, and with reference to Figure 5AThe connecting member 134b is substantially cylindrical, and its extension direction is substantially perpendicular to the first axial direction A1 and the second axial direction A2, but the present disclosure is not limited thereto. In some other embodiments, the connecting member 134b can also be replaced by a latch such as the connecting member 135.

[0070] In some other embodiments, the number of the slide groove 133c2 may be only one. Another connecting member 134b is connected to the sleeve member 134, and the connecting member 134b is slidably connected to the slide groove 133c2.

[0071] Please refer to Figure 5B , which shows Figure 2 Another cross-sectional view of the key device 130 along line segment 5A-5A in . Figure 5A and Figure 5B In this embodiment, the housing 131 has a sleeve portion 131a. The sleeve portion 131a surrounds the switch button 132. The key cap 133 is configured to move relative to the housing 131 along the first axial direction A1 to a first longitudinal position (such as the key cap 133 at Figure 5A ) and the second longitudinal position (such as the key cap 133 in Figure 5B When the user presses the keycap 133 along the first axial direction A1, the keycap 133 presses the switch button 132 into the sleeve portion 131a along the first axial direction A1 via the sleeve 134 to trigger a pressing signal. This pressing signal can be transmitted to the circuit board 120 below the key device 130. The key device 130 further includes a reset member 137. The reset member 137 is disposed between the housing 131 and the switch button 132, and is configured to reset the keycap 133 to the first longitudinal position.

[0072] In some embodiments, the reset member 137 is a compression spring, but the present disclosure is not limited thereto.

[0073] In some embodiments, such as Figure 4 and Figure 5A As shown in , the keycap 133 includes a pressing portion 133a and a side wall portion 133b. The side wall portion 133b is connected to the outer edge of the pressing portion 133a and is bent and extended relative to the pressing portion 133a toward the housing 131. The pressing portion 133a has a bottom surface 133a1. The second axial direction A2 is inclined relative to the bottom surface 133a1 (see Figure 5A ). In other words, the extending directions of the two slide grooves 133c1 and 133c2 are also inclined relative to the bottom surface 133a1. Figure 4 As shown in FIG. 1 , the closed end of the slide groove 133c1 is closer to the bottom surface 133a1 than the open end. With this structural configuration, when the key cap 133 has not been pushed laterally, the key cap 133 will tend to make the closed end of the slide groove 133c1 abut against the connecting member 135 due to its own gravity, thereby effectively preventing the key cap 133 from shaking laterally relative to the switch button 132.​​​​

[0074] Please refer to Figure 5C , which is another cross-sectional view showing the key device 130 in Figure 2 along the line 5A-5A. As shown in Figure 5A and Figure 5C , in the present embodiment, the keycap 133 is further configured to move relative to the switch key 132 along the second axis A2 between a first lateral position (such as the position of the keycap 133 in Figure 5A ) and a second lateral position (such as the position of the keycap 133 in Figure 5C ). When the keycap 133 moves from the first lateral position to the second lateral position, the switch key 132 moves relatively from the center of the keycap 133 to the edge of the keycap 133. When the user laterally pushes the keycap 133, the keycap 133 can laterally move along the second axis A2 relative to the underlying switch key 132 and the housing 131 through the sliding cooperation of the two connecting members 135 and 134b with the two sliding grooves 133c1 and 133c2 respectively. In addition, the key device 130 further includes a reset member 136. The reset member 136 is disposed between the keycap 133 and the socket member 134 and is configured to reset the keycap 133 to the first lateral position.

[0075] Specifically, the reset member 136 includes a thimble 136a. The thimble 136a has a smooth end that abuts against the side wall portion 133b. The socket member 134 has a groove 134c. The thimble 136a is slidably sleeved with the groove 134c. The reset member 136 further includes an elastic body 136b disposed between the thimble 136a and the socket member 134. In addition, the thimble 136a has a receiving groove 136a1. The groove 134c of the socket member 134 and the receiving groove 136a1 of the thimble 136a jointly receive the elastic body 136b. As can be seen from the foregoing, since the second axis A2 is inclined with respect to the bottom surface 133a1 of the pressing portion 133a, when the keycap 133 moves from the first lateral position to the second lateral position, it will move upward away from the socket member 134 at the same time. By using the thimble 136a with a smooth end and sleeved with the groove 134c to abut against the side wall portion 133b of the keycap 133, the reset member 136 can be effectively prevented from being bent and deformed due to the friction of the upwardly moving side wall portion 133b.

[0076] In some embodiments, the elastic body 136b of the reset member 136 is a compression spring, but the present disclosure is not limited thereto.

[0077] As shown in Figure 3As shown, the key device 130 further includes a displacement sensing component 138. The displacement sensing component 138 is disposed on the housing 131 and electrically connected to the circuit board 120. The displacement sensing component 138 is configured to generate a lateral trigger signal when it detects that the keycap 133 moves relative to the housing 131 along the second axis A2. This lateral trigger signal can be transmitted to the circuit board 120 below the key device 130. Thus, it can be seen that in addition to generating a pressing signal by pressing the keycap 133, the key device 130 of the present embodiment can also generate a lateral trigger signal by laterally pushing the keycap 133.

[0078] Please refer to Figure 6A and Figure 6B . Figure 6A To show Figure 5A a bottom view of some components in Figure 6B To show Figure 5C a bottom view of some components in. In the present embodiment, the displacement sensing component 138 is an optical transceiver and is configured to receive and emit light rays. For example, the displacement sensing component 138 can be an infrared sensor, a proximity sensor, or an ambient light sensor. As Figure 5A and Figure 6A shown, the bottom surface 133a1 of the pressing portion 133a of the keycap 133 has a reflection area 133a2. When the keycap 133 is in the first lateral position, the displacement sensing component 138 is directly below the reflection area 133a2 in the first axis A1. Therefore, the displacement sensing component 138 detects an optical signal through the reflection of the reflection area 133a2. As Figure 5C and Figure 6B shown, when the keycap 133 moves from the first lateral position to the second lateral position, the displacement sensing component 138 moves away from directly below the reflection area 133a2 in the first axis A1. Therefore, the displacement sensing component 138 cannot detect an optical signal through the reflection of the reflection area 133a2. Thus, the displacement sensing component 138 can determine whether the keycap 133 moves relative to the housing 131 along the second axis A2 by determining whether it receives an optical signal, thereby achieving the aforementioned purpose of generating a lateral trigger signal.

[0079] In some embodiments, the surface of the reflection area 133a2 can be processed with polishing, texturing, or height differences, or other materials can be attached to have a difference from the surrounding bottom surface 133a1.

[0080] The key device 130 of the foregoing embodiment uses an optical displacement sensing component 138 to detect the movement of the keycap 133 relative to the housing 131 along the second axial direction A2. However, the present disclosure is not limited thereto. In some other embodiments, the key device 130 may also use a contact or electromagnetic displacement sensing component 138 to achieve the purpose of detecting the movement of the keycap 133 relative to the housing 131 along the second axial direction A2.

[0081] As Figure 5A shown in Figure 5C , in the present embodiment, the keycap 133 further includes a stop rib 133d. The stop rib 133d is located on the side of the keycap 133 facing the housing 131 and is connected to at least one of the pressing portion 133a and the side wall portion 133b. When the keycap 133 is in the first lateral position, the stop rib 133d is offset from the sleeve portion 131a of the housing 131 in the first axial direction A1. When the keycap 133 is in the second lateral position, the stop rib 133d is opposite to the sleeve portion 131a in the first axial direction A1. The stop rib 133d is configured to generate a structural interference with the sleeve portion 131a of the housing 131, so as to prevent the keycap 133 from triggering the switch button 132 while moving laterally relative to the switch button 132, thereby avoiding misoperation of the key device 130.

[0082] To achieve the foregoing purpose of avoiding misoperation of the key device 130, in some embodiments, it can be designed such that when the keycap 133 is in the first lateral position and the second lateral position respectively, the stop rib 133d and the housing 131 are respectively separated by a first distance D1 (see Figure 5A ) and a second distance D2 (see Figure 5C ) in the first axial direction A1, where the second distance D2 is less than the first distance D1. Specifically, the second distance D2 is the distance between the stop rib 133d and the sleeve portion 131a. In addition, it can be further designed such that when the keycap 133 moves from the first longitudinal position to the second longitudinal position relative to the housing 131 along the first axial direction A1, it is displaced by a third distance D3, where the third distance D3 is less than the first distance D1 and greater than the second distance D2. Thus, when the keycap 133 is in the first lateral position, since the first distance D1 between the stop rib 133d and the housing 131 in the first axial direction A1 is greater than the third distance D3, the keycap 133 can move from the first longitudinal position to the second longitudinal position along the first axial direction A1 to trigger the switch button 132. When the keycap 133 is in the second lateral position, since the stop rib 133d is opposite to the sleeve portion 131a of the housing 131 in the first axial direction A1, and the second distance D2 between them is less than the third distance D3, the keycap 133 cannot trigger the switch button 132 by moving along the first axial direction A1.

[0083] As Figure 3As shown, in this embodiment, the key device 130 further includes a light source 139. The light source 139 is disposed on the housing 131 and electrically connected to the circuit board 120. The light source 139 is configured to emit light toward the key cap 133, so that the keyboard 100 of this embodiment becomes an illuminating keyboard 100.

[0084] In some embodiments, the light source 139 is a light emitting diode, but the present disclosure is not limited thereto.

[0085] From the above detailed description of the specific embodiments of the present invention, it can be clearly seen that in the keyboard of the present invention, the keycap of the key device is coupled to the switch key via a socket and a connector, so the keycap can not only move along the first axial direction to trigger the switch key, but also move laterally relative to the switch key in the second axial direction. Therefore, in addition to generating a pressing signal by pressing the keycap, the key device of the present invention can also generate a lateral triggering signal by pushing the keycap laterally. By designing the second axial direction to be inclined relative to the bottom surface of the keycap, the lateral shaking of the keycap relative to the switch key can be effectively avoided. By providing a stop rib on the keycap that can generate structural interference with the housing of the key device, it can be avoided that the keycap triggers the switch key at the same time when it moves laterally relative to the switch key, thereby effectively avoiding misoperation of the key device.

[0086] Although the present disclosure has been disclosed in the above-mentioned implementation mode, it is not intended to limit the present disclosure. Any ordinary technician in the field can make various changes and modifications without departing from the spirit and scope of the present disclosure. Therefore, the scope of protection of the present disclosure shall be based on the scope defined in the attached claims.

Claims

1. A keyboard, characterized in that: Include: Circuit boards; and A button device is arranged above the circuit board and comprises: case; A switch button, disposed on the housing and configured to move relative to the housing in a first axial direction perpendicular to the housing; A key cap, located above the switch button and having a guide structure; A sleeve member, sleeved on the switch button; as well as a connecting piece, connecting the guide structure and the sleeve piece, wherein the guiding structure is configured to guide the keycap to move relative to the switch key in a second axial direction via the connecting member, and the second axial direction is perpendicular to the first axial direction; Wherein, the guiding structure comprises a slide groove, the slide groove extends along the second axial direction, the connecting member is a latch, the latch can be rotatably connected to the sleeve member and can be slidably connected to the slide groove.

2. The keyboard according to claim 1, characterized in that The key cap includes a pressing portion, the pressing portion has a bottom surface, and the second axial direction is inclined relative to the bottom surface.

3. The keyboard according to claim 1, characterized in that: The guiding structure includes another slide groove, and the other slide groove extends along the second axial direction. The button device further includes another connecting member, and the other connecting member is connected to the sleeve member and slidably connected to the other slide groove.

4. The keyboard according to claim 1, characterized in that: The keycap is configured to move between a first lateral position and a second lateral position along the second axial direction relative to the switch key, and when the keycap moves from the first lateral position to the second lateral position, the switch key moves from the center to the edge of the keycap.

5. The keyboard according to claim 4, characterized in that: The key device further includes a reset member, which is disposed between the key cap and the sleeve member and configured to reset the key cap to the first lateral position.

6. The keyboard according to claim 5, characterized in that: The keycap includes a pressing portion and a side wall portion connected to each other, and the reset member includes an ejector pin, which abuts against the side wall portion.

7. The keyboard according to claim 6, characterized in that: The sleeve connector has a groove, the ejector pin is slidably sleeved with the groove, and the reset member further comprises an elastic body arranged between the ejector pin and the sleeve connector.

8. The keyboard according to claim 7, characterized in that: The ejector pin has a receiving groove, and the groove and the receiving groove together receive the elastic body.

9. The keyboard according to claim 4, characterized in that: The bottom surface of the keycap has a reflective area, and the key device further includes a displacement sensing component disposed on the shell, wherein when the keycap moves from the first lateral position to the second lateral position, the displacement sensing component leaves from directly below the reflective area in the first axial direction.

10. The keyboard according to claim 4, characterized in that: The shell has a sleeve portion, which surrounds the switch button, and the keycap includes a stop rib. When the keycap is located at the first lateral position, the stop rib is offset from the sleeve portion in the first axial direction, and when the keycap is located at the second lateral position, the stop rib is opposite to the sleeve portion in the first axial direction.

11. The keyboard according to claim 4, characterized in that: The keycap includes a stop rib. When the keycap is located at the first lateral position and the second lateral position, the stop rib is respectively spaced apart from the housing by a first distance and a second distance in the first axial direction, and the second distance is smaller than the first distance.

12. The keyboard according to claim 11, characterized in that: The keycap is further configured to move along the first axial direction relative to the housing from a first longitudinal position to a third distance to reach a second longitudinal position, and the third distance is smaller than the first distance and larger than the second distance.

13. The keyboard according to claim 12, characterized in that: The key device further includes a reset member, which is disposed between the housing and the switch key and configured to reset the key cap to the first longitudinal position.

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