TWI559176B - Input device and protection cover thereof - Google Patents

Description

Input device and its soft protective cover

The present invention generally relates to an input device and a soft protective cover thereof, and more particularly to a keyboard and a flexible protective cover therefor.

The keyboard is one of the commonly used input devices for inputting characters, numbers, symbols, instructions, and the like. However, the keyboard housing generally has an opening for setting a button, so that the surface of the keyboard inevitably has a plurality of gaps that easily allow foreign matter such as dust and water to enter the inside of the keyboard, thereby causing damage to the keyboard. In order to prevent foreign matter from entering the inside of the keyboard, it is common practice to cover the surface of the keyboard with a protective film so that the foreign matter can only fall on the protective film without entering the inside of the keyboard. However, the general protective film is a sheet-like structure. When the whole piece is covered on the surface of the keyboard, the user often has to spend more pressure on the pressure, and the stroke of the button stroke is reduced, resulting in poor operation feeling.

When the conventional protective film is covered on the keyboard, it also affects the appearance of the overall keyboard. Usually, the key cap that is disposed on the keyboard and is separated from the keyboard body in the original visual sense becomes integrated with the keyboard, and is not stereoscopic, and the impression of the conventional keyboard is different, and the user is not willing to accept the change.

With the trend of lightness and shortness, the keyboard with short stroke (low height) is gradually accepted by the user. When the protective film is applied to the short stroke button, the deformation of the protective film is small when pressing, the additional force required is low, and the appropriate protective film structure design The impact can be minimized. How to match the advantages of short-stroke buttons, and the soft protective cover that combines the feel of the hand and the better appearance is an important issue for research and development. One.

An object of the present invention is to provide an input device and a soft protective cover thereof, wherein the soft protective cover has a plurality of hollow protruding structures connected to the sheet-shaped main body to cover the key structure to form a non-breaking protection of the input device. cover.

Another object of the present invention is to provide an input device and a soft protective cover thereof, wherein the soft protective cover has a plurality of hollow protruding structures, and has a cover portion, a connecting portion and a vertical wall, respectively, and the connecting portion and the vertical wall are lower than the cover. The body is set to be highly connected, and a connecting line is formed on the outer side of the vertical wall. The connecting line has a sharp angle shape, and the appearance of the sheet-shaped main body and the dustproof cover (the cover body portion and the connecting portion) is formed by different reflection angles of the light rays on both sides of the connecting line. It is a non-integrated vision that has a three-dimensional appearance when covered by a button structure. The cover body portion and the connecting portion are connected at a distance from the inner side of the vertical wall, and are higher than the set height at the joint between the vertical wall and the connecting portion, so as to avoid direct pressing to the vertical wall during pressing, thereby increasing the elastic deformation of the cover portion and the connecting portion. Zone, reduce the resistance of pressing.

Another object of the present invention is to provide an input device and a soft protective cover thereof, wherein a gap between the sheet-like body of the soft protective cover and the bottom plate on which the button structure is disposed is provided, so that the sheet-like body is deformed according to the pressing deformation of the button structure, thereby reducing When the tap is pressed, the button elastically presses the extra force required to protect the cover body.

In one embodiment, the present invention provides a soft protective cover for covering an input device, wherein the input device has a plurality of key structures, the plurality of key structures each include a key cap, and the key cap has a key top and a peripheral top edge Under the extended skirt. The flexible protective cover of the present invention comprises a sheet-shaped body and a plurality of hollow protruding structures, wherein a plurality of hollow protruding structures are formed on the sheet-like body and correspond to positions of a plurality of button structures, each hollow protruding structure comprising a cover portion and a connecting portion And a body portion, wherein the body portion has a vertical wall, and one end of the body portion is connected to the sheet-shaped body, and the connecting portion is connected to the other end of the cover portion and the body portion and corresponds to the connection between the key top and the skirt, and the connecting portion has a connection The surface, and the connecting surface is at an angle to the direction in which the vertical wall extends. The joint (line) of the vertical wall and the connecting surface has a sharp angle shape (where the corner radius R of the sharp angle is less than 0.3 mm), and the reinforcing sheet-like body and the body portion are strengthened by different reflection angles of light rays on both sides of the connecting line. The appearance is a non-integrated vision, which has a three-dimensional appearance when covering the button structure.

In another embodiment, the present invention provides an input device including a bottom plate, a plurality of key structures, and a soft protective cover. The plurality of button structures are disposed on the bottom plate, and each of the button structures includes a key cap and a support unit, wherein the key cap has a key top and a skirt extending downward from the periphery of the key top, and the support unit supports the key cap to move relative to the bottom plate. The soft protective cover is disposed on the plurality of button structures and includes a sheet-shaped body and a plurality of hollow protruding structures, wherein the plurality of hollow protruding structures are formed on the sheet-shaped body and correspond to positions of the plurality of button structures, and each of the hollow protruding structures covers the corresponding button The structure further comprises a cover portion, a connecting portion and a body portion, wherein the cover portion covers the key top, the body portion has a vertical wall and is located on the outer side of the skirt and connects the sheet-shaped body, and the connecting portion connects the cover portion and the body portion and Corresponding to the connection between the key top and the skirt, wherein the connecting portion has a connecting surface, and the connecting line of the connecting surface and the vertical wall has a sharp shape, wherein the corner radius (R) of the sharp angle is less than 0.3 mm.

In one embodiment, the body portion is a hollow structure having a set thickness, and the thickness of the connecting portion is smaller than the thickness of the body portion, so that when the key cap moves relative to the bottom plate, the deformation amount of the connecting portion is greater than the deformation amount of the body portion. In another embodiment, the thickness of the sheet-like body is smaller than the thickness of the body portion such that when the keycap moves relative to the bottom plate, the amount of deformation of the sheet-like body is greater than the amount of deformation of the body portion.

In one embodiment, the flexible protective cover further includes a plurality of adhesive units, wherein the plurality of adhesive units are respectively disposed between the corresponding cover portions and the key tops to fix the soft protective cover.

In one embodiment, there is a gap between the sheet-like body and the bottom plate to elastically deform the sheet-like body when the keycap is moved relative to the bottom plate.

In one embodiment, the connecting surface is a slope or a curved surface with respect to the cover portion and the body portion.

In one embodiment, the input device further includes an outer frame, wherein the edge of the sheet-like body extends below the outer frame.

In one embodiment, the distance between the outer edges of the two adjacent keycaps is greater than 2.5 mm. The distance between two adjacent vertical walls is 1.2 to 1.8 mm.

In an embodiment, the connecting surface has an angle with the extending direction of the vertical wall, and the angle ranges from 55 degrees to 70 degrees.

10‧‧‧Input device

100‧‧‧Soft protective cover

110‧‧‧Piece body

110b‧‧‧ edge

120‧‧‧ hollow protruding structure

120a‧‧‧ accommodating space

122‧‧‧ Cover Department

123‧‧‧Connected line

124‧‧‧Connecting Department

124a, 124b‧‧‧ connection surface

126‧‧‧ Body Department

126a‧‧‧ vertical wall

128‧‧‧Adhesive unit

200‧‧‧floor

300‧‧‧Key structure

310‧‧‧Key Cap

310a‧‧‧ Connection

312‧‧‧Key top

314‧‧‧ skirt

320‧‧‧Support unit

400‧‧‧Front frame

A‧‧‧ extending direction

G‧‧‧ gap

N‧‧‧ normal direction

Θ‧‧‧ angle

1A is a schematic view of a flexible protective cover according to an embodiment of the present invention; FIG. 1B is a schematic cross-sectional view showing an enlarged hollow protruding structure along a line BB of FIG. 1A; FIG. 1C is a connection portion of a flexible protective cover according to another embodiment of the present invention; 2A is a schematic diagram of an explosion of an input device according to an embodiment of the present invention; FIG. 2B is a schematic diagram of a combination of the input device of FIG. 2A; and FIG. 3A and FIG. 3B respectively show an input device in a push button structure according to an embodiment of the present invention; FIG. 4A and FIG. 4B are exploded schematic views and a combined schematic view of an input device according to another embodiment of the present invention; and FIG. 4C is a partial cross-sectional view of the input device taken along line CC of FIG. 4B.

The invention provides an input device and a soft protective cover thereof. Specifically, the input device of the present invention can be any input device with a button structure, such as a separate keyboard device, integrated with an input device of an electronic product (for example, a notebook computer) Keyboard) etc., but not limited to this. The soft protective cover can be independently applied to the existing input device or integrated into the input device, so as to cover the button structure corresponding to the button structure, thereby achieving dustproof, waterproof and the like to avoid damage to the input device. Hereinafter, the keyboard and the keyboard are taken as an example, and the structure and operation of the input device and the soft protective cover thereof according to the embodiment of the present invention are described in detail with reference to the drawings.

As shown in FIG. 1A and FIG. 1B, in one embodiment, the flexible protective cover 100 of the present invention comprises a sheet-like body 110 and a plurality of hollow protruding structures 120, wherein a plurality of hollow protruding structures 120 are formed on the sheet-like body 110. Specifically, the number and position of the hollow protruding structures 120 correspond to the number and position of the button structures to be covered, and the plurality of hollow protruding structures 120 are preferably integrally formed on the sheet-like body 110 so as to be plural hollow. The protruding structure 120 and the sheet-like body 110 are connected to each other to form a protective cover without a hole. In other words, the plurality of hollow protruding structures 120 respectively cover the corresponding button structures, and the sheet-like body 110 corresponds to the gap position between the plurality of button structures and connects the adjacent hollow protruding structures 120. In one embodiment, the flexible protective cover 100 is preferably made of a material that is elastic and bendable, such as rubber or polymer, to provide a user with a better tactile sensation and a suitable amount of deformation when pressed.

Furthermore, each of the hollow protruding structures 120 includes a cover portion 122, a connecting portion 124, and a body portion 126. Specifically, the main body portion 126 has a vertical wall 126a, and one end of the main body portion 126 is connected to the sheet-shaped main body 110, and the connecting portion 124 is connected to the other end of the cover portion 122 and the main body portion 126 to form an accommodating space. The cap structure of 120a. In this embodiment, the cover portion 122 is preferably a rectangular or square top, and the surface of the cover portion 122 is preferably parallel to the extended surface of the sheet-like body 110. The body portion 126 is formed on the sheet-like body 110 around the cover portion 122 as a side wall defining the accommodation space 120a of the hollow protruding structure 120. The direction A of extension of the body portion 126 is preferably parallel to the normal direction N of the extended surface of the sheet-like body 110. The connecting portion 124 is connected between the cover portion 122 and the body portion 126. The connecting portion 124 has a connecting surface 124a, and the connecting surface 124a has an angle θ with the extending direction A of the vertical wall 126a. The connecting portion 124 and the vertical wall 126a have a connecting line 123, and the appearance of the sheet-like body 110 and the cover body (the cover portion 122 and the connecting portion 124) is inconsistent by the different reflection angles of the light rays on both sides of the connecting line 123. The stereoscopic appearance has a three-dimensional appearance, and the connecting line 123 preferably has a sharp angle shape. Specifically, the height of the body portion 126 relative to the sheet-like body 110 is lower than the height of the cover portion 122 relative to the sheet-like body 110, and the body portion 126 is disposed on the outer side of the cover portion 122 such that the connecting portion 124 is opposite The cover portion 122 and the body portion 126 are inclined, and the connecting surface 124a is inclined from the cover portion 122 toward the body portion 126. As shown in FIG. 1B , in this embodiment, the connecting surface 124 a is preferably a slope inclined from the cover portion 122 toward the body portion 126 , but is not limited thereto. In another embodiment, as shown in FIG. 1C, the connecting portion 124 has a curved connecting surface 124b. In addition, on the product after the mold is formed, the angle of interest is not a perfect angle, so the angle has a rounded corner. Wherein the fillet radius (R) is preferably less than 0.3 mm.

It should be noted that the present invention is designed such that the connecting portion 124 is inclined with respect to the cover portion 122 and the body portion 126 such that the connecting surfaces 124a, 124b and the extending direction A of the body portion 126 have an angle θ, and the cover portion is 122 is connected to the connecting portion 124 at a distance inside the main body portion 126 and higher than a joint between the vertical outer wall 126a of the main body portion 126 and the connecting portion 124 (for example, the connecting line 123), so that the pressing is reduced to directly press the main body portion 126, by increasing The elastic deformation region of the cover portion 122 and the connecting portion 124 reduces the resistance of the pressing. In this design with short stroke low height button, visual effect and above The distance between the lid portion 122 and the connecting portion 124 is connected to the inner side of the main body portion 126, and the height of the lid portion 122 is higher than the set height of the joint between the vertical outer wall 126a of the main body portion 126 and the connecting portion 124, which is roughly determined. The included angle θ is approximately 65 degrees in the present embodiment, and the angle θ is practically approximately 55 to 75 degrees.

Further, as shown in FIG. 1B, the thickness of the connecting portion 124 is preferably smaller than the thickness of the body portion 126, so that the connecting portion 124 is more elastically deformable than the body portion 126. Furthermore, the thickness of the sheet-like body 110 is preferably smaller than the thickness of the body portion 126 such that the sheet-like body 110 is more elastically deformable than the body portion 126. It should be noted here that the direction measured by the thickness refers to the direction perpendicular to the extending direction. That is, the thickness of the connecting portion 124 refers to the thickness measured parallel to the normal direction of the connecting surface 124a; the thickness of the body portion 126 refers to the thickness measured perpendicular to the extending direction A, and the thickness of the sheet-like body 110 is The thickness measured parallel to the normal direction of the surface of the sheet-like body 110.

As shown in FIG. 1B, the sheet-like body 110 is further connected to the corresponding body portion 126, respectively. In one embodiment, the main body portion 126 is stepped downward to enhance the elastic deformation of the sheet-like body 110. In addition, the flexible protective cover 100 may further include a plurality of adhesive units 128, wherein the plurality of adhesive units 128 are respectively disposed under the corresponding cover portions 122 as components fixed to the key structure (described in detail later). Specifically, the adhesive unit 128 is disposed on the lower surface of the cover portion 122 and faces the accommodation space 120a as an element fixed to the key structure (for example, the top of the key cap). In this embodiment, the adhesive unit 128 is preferably jelly, but is not limited thereto. The adhesive unit 128 can be any adhesive component (such as an adhesive or a double-sided tape) for fixing to the button structure, and the position of the adhesive unit 128 on the lower surface of the cover portion 122 is not limited to the illustrated one, but can be configured in the Any suitable position to achieve a fixed effect. The adhesive unit 128 is disposed under the cover portion 122 to enhance the application of the flexible protective cover 100. For example, when the soft protective cover is used as an additional component of an input device such as a keyboard, The unit can directly fix the soft protective cover on the input device to prevent displacement during operation and maintain a proper fit between the soft protective cover and the button structure, and control the set height. When the soft protective cover is integrated into the input device, there is no need to add a soft protective cover to the input device to additionally increase the step of applying the adhesive unit to each button structure, and only the step of setting the soft protective cover is added to the existing input device manufacturing program. , to eliminate the complexity of the production process.

2A-2B and 3A-3C, an input device 10 according to an embodiment of the present invention will be described. In this embodiment, the input device 10 is exemplified by a keyboard, but is not limited thereto. As shown in FIGS. 2A and 2B, the input device 10 includes a bottom plate 200, a plurality of key structures 300, and a flexible protective cover 100. The plurality of button structures 300 are disposed on the bottom plate 200, and the flexible protective cover 100 is disposed on the plurality of button structures 300 such that the plurality of hollow protruding structures 120 correspond to the positions of the plurality of button structures 300.

As shown in FIG. 3A , each button structure 300 includes a key cap 310 and a supporting unit 320 , wherein the supporting unit 320 supports the key cap 310 to move relative to the bottom plate 200 . It should be noted that the button structure 300 can include any conventional button structure, and the support unit 320 and the key cap 310 can have any conventional connection and actuation relationship. For example, in this embodiment, the supporting unit 320 can be a butterfly wing supporting unit, and the two brackets are respectively disposed on two sides of the keycap 310, and each bracket is rotatably and slidably coupled to the keycap 310 and the bottom plate 200, respectively. The connection is performed to support the keycap 310 to move relative to the bottom plate 200 in response to the pressing action of the user. It should be noted that in other embodiments, the support unit 320 can be any conventional support structure, such as a scissor support structure, a cantilever support structure, a plunger support structure, etc., but not limited thereto. Moreover, for the sake of brevity, although not shown, it should be understood that the button structure 300 may further include other components of the conventional button structure, such as a switch layer, a reply unit, and the like. The switch layer is used as an actuating switch of the button structure to perform a user's command or character input function. return The compounding unit can provide a restoring force for returning the keycap to the original position after being pressed, and the returning unit can be an elastic member or a magnetic member, and the like.

It should be noted that the detailed structure of the flexible protective cover 100 can be referred to the related description of FIGS. 1A-1C, and the following description focuses on the structure and actuation relationship between the soft protective cover 100 and other components of the input device 10. The soft cover 100 is placed over the bottom plate 200 such that the key caps 310 of the plurality of button structures 300 are respectively received in the receiving space 120a of the hollow protruding structure 120. Specifically, as shown in FIG. 3A, the keycap 310 has a key top 312 and a skirt 314 extending downward from the periphery of the key top 312. The hollow protruding structure 120 covers the corresponding button structure 300 such that the cover portion 122 covers the key top 312, the body portion 126 is on the outer side of the skirt 314, and the connecting portion 124 corresponds to the joint 310a of the key top 312 and the skirt 314. In other words, the surface of the cover portion 122 is preferably parallel to the surface of the key top 312, and the adhesive unit 128 disposed on the lower surface of the cover portion 122 is located between the cover portion 122 and the key top 312 to connect the corresponding cover portion. 122 and the key top 312, thereby fixing the flexible protective cover 100.

When the flexible protective cover 100 covers the plurality of button structures 300, the cover portion 122 covers the key top 312, and the connecting portion 124 extends obliquely from the joint 310a of the key top 312 and the skirt 314 for a distance, thereby being connected to the sheet body. Body portion 126 on 110. In one embodiment, the extension portion and length of the connecting portion 124 are preferably such that they have a predetermined distance from the joint 310a of the key top 312 and the skirt 314 (or a gap between the body portion 126 and the skirt 314). Therefore, it is ensured that the pressing force is applied to the inside of the connecting portion 124 (ie, the lid portion 122 and the connecting portion 124) without pressing against the body portion 126. Thereby, the connecting portion 124 can be elastically deformed in response to the movement of the key cap 310 toward the bottom plate 200 (as shown in FIG. 3B), and the connecting surface 124a of the connecting portion 124 and the extending direction A of the vertical wall 126a are sandwiched by an angle θ.

Furthermore, a gap G is provided between the sheet-like body 110 and the bottom plate 200 to elastically deform the sheet-like body 110 when the keycap 310 is moved relative to the bottom plate 200. In other words, when soft protection When the cover 100 covers the button structure 300, the distance between the cover portion 122 and the sheet-like body 110 is smaller than the distance between the cover portion 122 and the bottom plate 200, so that the sheet-like body 110 is equivalent to being suspended above the bottom plate 200. Thereby, as shown in FIG. 3B, when the keycap 310 is moved toward the bottom plate 200 by the user's pressing, there is a gap G between the sheet-like body 110 and the bottom plate 200, so that the sheet-like body 110 follows the key cap 310. The movement provides elastic deformation, thereby reducing the force required for pressing. Furthermore, in the case where the button structure 300 has a fixed gap, the connection portion 310a of the key top 312 and the skirt 314 preferably has a slope to correspond to the connecting surface 124a of the connecting portion 124 of the hollow protruding structure 120. The size of the cover portion 122 can be reduced while increasing the extension length of the sheet-like body 110 between adjacent button structures 300 to reduce the force required for deformation of the sheet-like body 110.

As shown in FIG. 3B, when the button structure 300 is pressed, the connecting portion 124 and the sheet-like body 110 are respectively elastically deformed by having a thickness smaller than that of the main body portion 126, and provide a sufficient elastic deformation region so that the cover portion 122/keycap 310 can be easily pressed down. At the same time, the relatively thick body portion 126 is relatively displaced from the keycap 310 to maintain the structural strength of the hollow projecting structure 120, thereby maintaining an overall three-dimensional feel. It should be noted here that the extended position and length of the connecting portion 124, the height position of the main body portion 126 with respect to the cover portion 122, and the gap G between the sheet-like main body 110 and the bottom plate 200 (or the extended length of the protruding portion 122), When the keycap 310 is moved relative to the bottom plate 200, the connecting portion 124 and the sheet-like body 110 can provide an appropriate amount of deformation to reduce the influence of the pressing feel. Considering the visual appearance and the elastic deformation effect of the sheet-like body, the distance between the vertical walls 126a of the adjacent two main body portions is 1.5 mm in the present embodiment, and the practical distance is approximately 1.2 to 1.8 mm, so that the influence of the adjacent keycaps 310 is lowered when pressed. In combination with the design of the hollow protruding structure 120, the appearance can be made into a non-integral vision, and has a three-dimensional appearance effect.

The outer edge of the adjacent keycap below the dust cover (ie, the soft protective cover) is away from the embodiment. It is 3mm, and it is practically more than 2.5mm, so that the dust cover can be deformed in a large range when pressed, and the influence of the hand feeling is reduced.

As previously mentioned, the flexible protective cover 100 of the present invention can be integrated with a conventional keyboard (as shown in Figures 2A-2B). As shown in FIGS. 4A-4C, the input device 10' differs from the input device 10 of FIGS. 2A-2B in that it further includes an outer frame 400, wherein the flexible protective cover 100 is disposed such that the edge 110b of the sheet-like body 110 extends to the outside. Below the box 400. Specifically, the outer frame 400 is a rectangular annular frame and is disposed relative to the bottom plate 200 such that the plurality of hollow protruding structures 120 of the flexible protective cover 100 and the underlying button structure 300 are located at a central area defined by the outer frame 400, and the softness The peripheral edge 110b of the sheet-like body 110 of the protective cover 100 extends below the outer frame 400 such that the flexible protective cover 100 forms a closed connection with the outer frame 400. The flexible protective cover 100 and the outer frame 400 can be fixed by any suitable means, such as adhesion, snapping, etc., to form a closed fixing, so that the upper surface of the input device 10' is substantially seamlessly connected, and the formation is prevented. The material penetrates into the enclosed area and enhances the aesthetic appearance.

Compared with the prior art, the present invention utilizes a connection point (line) of the connecting wall of the vertical wall of the hollow protruding structure and the connecting portion to have a sharp angle, and the appearance angle is formed by different reflection angles (shadows) of the light rays on both sides of the connecting line. The non-integrated vision enhances the three-dimensional appearance of the structural appearance and the vision of a similar keyboard independent keycap. Furthermore, the present invention can provide a sufficient elastic deformation zone by the inclined arrangement of the connecting portion and the gap between the sheet-like body and the bottom plate, thereby reducing the influence of the soft protective cover on the pressing feel. Further, the soft protective cover of the present invention is provided with an adhesive unit in advance in the cover portion, which can increase the applicability of the soft protective cover and avoid complication of the manufacturing process of the input device.

The present invention has been described by the above embodiments, but the above embodiments are for illustrative purposes only and are not intended to be limiting. It will be apparent to those skilled in the art that the embodiments specifically described herein may have other modifications of the embodiments. Therefore, the scope of the invention also covers such repairs. It is intended to be limited only by the scope of the appended claims.

100‧‧‧Soft protective cover

110‧‧‧Piece body

120‧‧‧ hollow protruding structure

122‧‧‧ Cover Department

123‧‧‧Connected line

124‧‧‧Connecting Department

124a‧‧‧ connection surface

126‧‧‧ Body Department

126a‧‧‧ vertical wall

128‧‧‧Adhesive unit

200‧‧‧floor

310‧‧‧Key Cap

310a‧‧‧ Connection

312‧‧‧Key top

314‧‧‧ skirt

320‧‧‧Support unit

A‧‧‧ extending direction

G‧‧‧ gap

Θ‧‧‧ angle

Claims (19)

A soft protective cover for covering an input device, the input device having a plurality of button structures each comprising a key cap, and the key cap has a key top and extending downward from a periphery of the key top a skirt, the soft protective cover comprises: a piece-shaped body; and a plurality of hollow protruding structures formed on the sheet-like body and corresponding to a plurality of button structures, each hollow protruding structure comprising a cover portion, a connecting portion and a main body portion, wherein the main body portion has a vertical wall, and one end of the main body portion is connected to the sheet-shaped main body, the connecting portion is connected to the cover body portion and the other end of the main body portion and the corresponding key The connecting portion of the top portion and the skirt portion has a connecting surface, and the connecting surface has an angle shape with the vertical wall. The soft protective cover of claim 1, wherein the thickness of the connecting portion is smaller than the thickness of the body portion. The soft protective cover of claim 1, wherein the thickness of the sheet-like body is smaller than the thickness of the body portion. The soft protective cover according to claim 1, further comprising a plurality of adhesive units, wherein the plurality of adhesive units are respectively disposed under the corresponding cover portions. The soft protective cover of claim 1, wherein the connecting surface is a slope or a curved surface with respect to the cover portion and the body portion. The soft protective cover of claim 1, wherein the corner shape has a fillet radius of less than 0.3 mm. The soft protective cover of claim 1, wherein the connecting surface and the vertical wall are The direction of extension has an included angle of between 55 and 70 degrees. The soft protective cover of claim 1, wherein the distance between two adjacent vertical walls is 1.2 to 1.8 mm. An input device comprises: a bottom plate; a plurality of button structures disposed on the bottom plate, and each button structure comprises: a key cap having a key top and a skirt extending downward from a periphery of the key top; and a support a unit for supporting the keycap to move relative to the bottom plate; and a soft protective cover disposed on the plurality of button structures, the flexible protective cover comprising: a piece-shaped body; and a plurality of hollow protruding structures formed on the sheet-shaped body And a position corresponding to the plurality of button structures, each of the hollow protruding structures covering the corresponding button structure and including a cover portion, a connecting portion and a body portion, wherein the cover portion covers the key top, the body The portion has a vertical wall and the body portion is located on the outer side of the skirt and is connected to the sheet-shaped body, the connecting portion is connected to the cover portion and the body portion and corresponds to the connection between the key top and the skirt, wherein the connection The portion has a connecting surface, and the connecting surface has a sharp angle shape with the vertical wall. The input device of claim 9, wherein the thickness of the connecting portion is smaller than the thickness of the body portion, so that when the key cap is moved relative to the bottom plate, the deformation amount of the connecting portion is greater than that of the body portion. The amount of deformation. The input device of claim 9, wherein the thickness of the sheet body is smaller than the thickness of the body portion, so that the deformation of the sheet body is large when the key cap is moved relative to the bottom plate. The amount of deformation of the body portion. The input device of claim 9, further comprising a plurality of adhesive units, wherein the plurality of adhesive units are respectively disposed between the corresponding cover portion and the key top to fix the soft protective cover. The input device of claim 9, wherein a gap is formed between the sheet-like body and the bottom plate to elastically deform the sheet-shaped body when the key cap is moved relative to the bottom plate. The input device of claim 9, further comprising an outer frame, wherein an edge of the sheet-like body extends below the outer frame. The input device of claim 9, wherein the connecting surface is a slope or a curved surface with respect to the cover portion and the body portion. The input device of claim 9, wherein the distance between the outer edges of the two adjacent keycaps is greater than 2.5 mm. The input device of claim 9, wherein the distance between two adjacent vertical walls is 1.2 to 1.8 mm. The input device of claim 9, wherein the corner shape has a fillet radius of less than 0.3 mm. The input device of claim 9, wherein the connecting surface has an angle with an extending direction of the vertical wall, and the angle ranges from 55 degrees to 70 degrees.