CN203102082U - Tablet personal computer - Google Patents

Abstract

A tablet personal computer comprises a shell, a cover body and a keyboard. The shell is provided with an opening and a containing groove formed by inwards sinking. The containing groove is provided with a groove. The groove is provided with an inlet section and a clamping section. The inlet section is communicated between the opening and the clamping section. The width of the inlet section is larger than that of the clamping section. The cover body is pivoted to the shell body. The cover body covers the opening when rotating to the covering position and supports the shell body to stand when rotating to the unfolding position. The keyboard is detachably accommodated in the accommodating groove and comprises at least one clamping structure. The clamping structure is positioned on the periphery of the keyboard and clamped in the clamping section.

Description

tablet

technical field

The utility model relates to a tablet computer, in particular to a tablet computer capable of accommodating a keyboard. the

Background technique

Computer is the most common and convenient tool used in modern people's life and work. Commonly used desktop computers include screens, mainframes, keyboards, mice, printers, and related peripherals. However, due to the large number of devices, difficulty in installation, and limitations of fixed-point use, they cannot be carried. Therefore, the notebook computer which can provide advantages such as portability and convenient use shows its advantages in this respect. the

Most of the currently used notebook computers are foldable and have a screen and an operation interface design. Although the notebook computer can provide the convenience of being carried around, it still has a certain size in terms of appearance and volume, and weighs about 1 or 2 kilograms (or more), so it is still slightly uncomfortable when carrying and using it. convenient. Therefore, some operators create a tablet computer (for example, iPad) with a single body device through the touch screen mode, and generate an operation interface for input signals on the touch screen of the tablet computer, which can be directly touched by the user. Control the operation interface to input operation signals. In this way, a single screen can be used for computer operations, and the size of the computer can be greatly reduced. the

However, the tablet computer only has a touch screen, which still has some inconvenience and troubles during operation and application. For example, the touch screen of a tablet computer can only be placed horizontally, and cannot be placed sideways or at an inclined angle. It is necessary to look down at the screen during use, which may easily cause discomfort to the user's neck and shoulders. If the tablet computer is leaned against other objects, it is not easy to locate, and it is easy to cause the tablet computer to slide and cause inconvenience in operation. the

Therefore, with the massive development of tablet PCs, peripheral products also appear, among which physical keyboard products are the most capable of giving users good operational feedback in terms of usability. Take the keyboard accessories of the tablet computer as an example. In addition to the independent external keyboard, there are still some designs that can integrate the tablet and the keyboard, such as leather cases with built-in detachable (or non-detachable) keyboards or Comes with hard shell protective cover. There are even some tablet computers with original accessories with exclusive keyboard functions, which can be combined with ordinary notebook computers to operate. the

However, even if the tablet computer and the external keyboard are combined with the above method, the external keyboard is still combined with the tablet computer. There is still a gap. For this reason, if a design that can integrate the tablet computer and the external keyboard can be provided to solve the above-mentioned needs and make the industry stand out from the competition, it becomes an important issue to be solved urgently. the

Utility model content

The utility model provides a tablet computer comprising a shell, a cover and a keyboard. The shell has an opening and a receiving slot. The accommodating groove is formed by inwardly recessing the opening. The side wall of the accommodating groove has a groove. The groove has an inlet section and an engaging section. The inlet section is connected between the opening and the engaging section. The width of the inlet section is greater than that of the engaging section. The cover is pivotally connected to the casing, and is used to rotate relative to the casing between a closed position and an unfolded position. The cover body covers the opening when it is rotated to the closed position, and supports the housing to stand when it is rotated to the unfolded position. The keyboard is detachably accommodated in the accommodating slot and includes at least one engaging structure. The engaging structure is located on the periphery of the keyboard and is engaged in the engaging section. the

In an embodiment of the present utility model, the bottom surface of the above-mentioned accommodating groove corresponds to a part of the engaging section parallel to the keyboard. The bottom surface of the accommodating groove corresponds to the part of the inlet section, and bends toward the opening along the direction away from the engaging section. the

In an embodiment of the present invention, the above-mentioned groove further has a tapered section. Both ends of the tapered section are connected to the inlet end and the locking end respectively. The width of the tapered section is tapered from the inlet end to the locking end. the

In one embodiment of the present invention, the bottom surface of the accommodating groove has a parallel portion and a curved portion. The parallel portion corresponds to the engaging section and part of the tapering section, and is parallel to the keyboard. The curved portion connects the parallel portion, corresponds to the inlet section and part of the tapered section, and bends toward the opening along a direction away from the engaging section. the

In one embodiment of the present invention, the above-mentioned keyboard is accommodated in the accommodating groove and carried on the parallel portion. the

In an embodiment of the present utility model, the above-mentioned engaging structure is a convex line. The length of the convex line is equal to or slightly less than the sum of the length of the engaging section and the length of the tapering section. The engaging segment has a fixed width. A part of the raised strip is accommodated in the tapered section. The other part of the convex line is engaged in the engaging section. the

In an embodiment of the present invention, the above-mentioned engaging structure includes several bumps. The engaging segment has a fixed width. The bumps are engaged in the engaging section. the

In an embodiment of the present invention, the above-mentioned keyboard includes a first ferromagnetic element. The housing contains a second ferromagnetic element. The second ferromagnetic element is arranged on the side wall of the accommodating groove, and is used for attracting the first ferromagnetic element when the keyboard is accommodated in the accommodating groove. the

In an embodiment of the present utility model, the above-mentioned casing further has a hole. The tablet also includes a hinge. The hinge includes a pivot portion and a connecting portion. The pivot joint is pivotally connected to the housing inside the housing. Both ends of the connection part are respectively connected to the pivot part and the cover body. When the cover is in the closed position, the pivotal joint and the connecting part are located in the hole, and when the cover is in the unfolded position, the pivotal part abuts against the inner surface of the casing, and the connecting part is exposed through the hole. the

In an embodiment of the present invention, the above-mentioned tablet computer further includes elastic pieces. The shrapnel is arranged in the shell and adjacent to the hole. When the cover is at the closing position, the elastic piece pushes the connecting portion, causing the cover to close toward the opening. When the cover is at the unfolded position, the elastic piece pushes the pivotal joint, causing the pivotal joint to abut against the inner surface. the

A main technical feature of the tablet computer provided by the utility model is that the tablet computer has an accommodating groove capable of accommodating a keyboard, and a cover capable of covering the accommodating groove. Therefore, when the cover body covers the accommodating groove, the keyboard can be stored inside the tablet computer, so that the back of the tablet computer still maintains the original integrity, making it impossible for people to detect the presence of the keyboard; , supports the tablet to stand. Another main technical feature of the tablet computer of the present invention is that the groove of the accommodating groove has an entrance section, a tapered section and an engaging section with widths ranging from large to small. Therefore, when the keyboard is placed into the accommodating slot, the entrance section has the effect of allowing the engaging structure on the keyboard to easily enter, the tapered section has the effect of smoothly guiding the engaging structure to move toward the engaging section, and the locking The engaging section has a locking structure to prevent the keyboard from detaching from the receiving slot in a direction away from the bottom surface of the receiving slot. the

Description of drawings

FIG. 1A is a perspective view illustrating a tablet computer according to an embodiment of the present invention. the

FIG. 1B is another perspective view illustrating the tablet computer in FIG. 1A , wherein the cover rotates relative to the casing to a closed position. the

FIG. 1C is another perspective view illustrating the tablet computer shown in FIG. 1B , wherein the cover rotates relative to the casing to an unfolded position. the

FIG. 1D is another perspective view showing the tablet computer shown in FIG. 1C , wherein the keyboard is partially removed from the tablet computer. the

FIG. 2 is another perspective view illustrating the tablet computer shown in FIG. 1A , wherein the keyboard has been completely removed from the casing. the

FIG. 3 is a perspective view illustrating the keyboard shown in FIG. 1B . the

FIG. 4A is a cross-sectional view of the tablet computer shown in FIG. 3 along line 4A-4A'. the

FIG. 4B is another cross-sectional view of the tablet computer shown in FIG. 4A , wherein the keyboard is accommodated in the accommodating groove. the

FIG. 5 is a cross-sectional view illustrating the tablet computer shown in FIG. 4B according to another embodiment. the

FIG. 6A is a partial cross-sectional view of the tablet computer shown in FIG. 3 along line 6A-6A'. the

FIG. 6B is another partial cross-sectional view of the tablet computer shown in FIG. 6A , wherein the cover rotates relative to the casing to a closed position. the

Description of main component symbols:

1: Tablet PC 12: Display panel module

10: Shell 14: Cover

10a: Inner surface 16: Keyboard

100: Assembly port 160: Raised strip

102: Opening 162: The first ferromagnetic element

104: Accommodating groove 164: Anti-slip part

104a: Parallel part 18: Hinge

104b: Bending part 180: Pivoting part

106: Groove 182: Connecting part

106a: Entrance section 20: Shrapnel

106b: Tapered section 22: Circuit module

106c: Snap section 36: Keyboard

108: Second ferromagnetic element 360: Bump

110: Perforation A: Combination direction

Detailed ways

Several implementations of the present invention will be disclosed below with the accompanying drawings. For the sake of clarity, many practical details will be described together in the following description. However, it should be understood that these practical details should not be used to limit the invention. That is to say, in some embodiments of the present utility model, these practical details are unnecessary. In addition, for the sake of simplification of the drawings, some conventional structures and components will be shown in a simple and schematic manner in the drawings. the

Please refer to FIG. 1A , FIG. 1B , FIG. 1C and FIG. 1D . FIG. 1A is a perspective view illustrating a tablet computer 1 according to an embodiment of the present invention. FIG. 1B is another perspective view illustrating the tablet computer 1 shown in FIG. 1A , wherein the cover 14 is rotated relative to the housing 10 to a closed position. FIG. 1C is another perspective view illustrating the tablet computer 1 shown in FIG. 1B , wherein the cover 14 is rotated relative to the casing 10 to an unfolded position. FIG. 1D is another perspective view of the tablet computer 1 shown in FIG. 1C , wherein the keyboard 16 is partially removed from the tablet computer 1 . the

As shown in FIG. 1A , in this embodiment, the tablet computer 1 includes a casing 10 and a display panel module 12 . The casing 10 of the tablet computer 1 has an assembly opening 100 on the front. The size of the assembly opening 100 of the casing 10 matches the size of the display panel module 12 , so the display panel module 12 can be engaged with the assembly opening 100 . the

As shown in FIG. 1B and FIG. 1C , in this embodiment, the tablet computer 1 further includes a cover 14 and a keyboard 16 . The back of the housing 10 of the tablet computer 1 has an opening 102 and a receiving slot 104 . The accommodating groove 104 of the housing 10 is formed by inwardly recessing the opening 102 . The keyboard 16 of the tablet computer 1 is detachably accommodated in the receiving slot 104 . The cover 14 of the tablet computer 1 is pivotally connected to the back of the housing 10 and can rotate relative to the housing 10 between a closed position (as shown in FIG. 1B ) and an unfolded position (as shown in FIG. 1C ). the

When the cover body 14 of the tablet computer 1 is rotated relative to the casing 10 to the closed position, the cover body 14 covers the opening 102 and the back of the tablet computer 1 can still maintain the original integrity. Therefore, the keyboard 16 accommodated in the accommodating groove 104 can be completely accommodated inside the tablet computer 1 , and the presence of the keyboard 16 cannot be detected. the

It should be explained here that, in order to make the tablet computer 1 achieve the purpose of accommodating the keyboard 16, the utility model centrally arranges the circuit module 22 of the tablet computer 1 (shown in FIG. In the other part occupied by slot 104. The circuit module 22 of the tablet computer 1 may include electronic components such as a motherboard, a central processing unit, and a battery (not shown), which will not be further detailed here. the

As shown in FIG. 1D , when the cover 14 of the tablet computer 1 is rotated relative to the housing 10 to the unfolded position, the cover 14 has the function of supporting the housing 10 to stand. And, when the user has a typing input demand, under the situation that the tablet computer 1 is standing through the cover body 14, the user can directly reach the back of the tablet computer 1 and press the anti-slip part on the back of the keyboard (such as As shown in FIG. 1C ), the keyboard 16 accommodated in the accommodating groove 104 is smoothly taken out from the side of the tablet computer 1 for use, and the tablet computer 1 does not need to be moved or turned over during the process. the

In addition, the keyboard 16 and the circuit module 22 of the tablet computer 1 can be connected through wireless transmission technology. For example, the wireless transmission technology can be Bluetooth transmission technology, Wireless Fidelity (Wireless Fidelity, hereinafter referred to as WIFI) transmission technology, ZigBee transmission technology, radio frequency transmission technology, digital light processing (Digital Light Processing, DLP LINK) transmission technology, infrared Transmission technology, etc., but the utility model is not limited thereto. the

Please refer to Figure 2 and Figure 3 . FIG. 2 is another perspective view of the tablet computer 1 shown in FIG. 1A , in which the keyboard 16 has completely left the housing 10 . FIG. 3 is a perspective view illustrating the keyboard 16 in FIG. 1B . the

As shown in FIGS. 2 and 3 , in this embodiment, FIG. 2 is another perspective view of the tablet computer 1 shown in FIG. 1A , wherein the keyboard 16 has completely left the casing 10 . FIG. 3 is a perspective view illustrating the keyboard 16 in FIG. 1B . the

As shown in FIGS. 2 and 3 , in this embodiment, the sidewall of the accommodating groove 104 has a groove 106 . The groove 106 of the receiving groove 104 is substantially parallel to the bottom surface of the receiving groove 104 . The keyboard 16 of the tablet computer 1 is detachably accommodated in the accommodating groove 104 of the housing 10 and includes a locking structure. The engaging structure of the keyboard 16 is located on the periphery of the keyboard 16 . the

Furthermore, the engaging structure of the keyboard 16 is two convex strips 160 respectively located on two opposite edges of the keyboard 16 (as shown in FIG. 1D ). Correspondingly, the two opposite side walls of the accommodating groove 104 (that is, the side wall adjacent to the cover 14 and the side wall away from the cover 14 in FIG. 2 ) also have two grooves 106 for connecting with the two sides of the keyboard 16 The protrusions 160 are engaged with each other. In this way, when the keyboard 16 of the tablet computer 1 is accommodated in the accommodating groove 104, the convex strip 160 of the keyboard 16 can be engaged in the groove of the accommodating groove 104, thereby preventing the keyboard 16 from facing away from the accommodating groove. The direction of the bottom surface of the groove 104 deviates from the purpose of accommodating the groove 104 . the

In addition, the keyboard 16 of the tablet computer 1 includes a first ferromagnetic element 162 . The first ferromagnetic element 162 of the keyboard 16 is disposed around the keyboard 16 . The housing 10 of the tablet computer 1 contains a second ferromagnetic element 108 . The second ferromagnetic element 108 of the casing 10 is disposed on the sidewall of the receiving groove 104 for attracting the first ferromagnetic element 162 of the keyboard 16 when the keyboard 16 is accommodated in the receiving groove 104 . In this way, when the keyboard 16 of the tablet computer 1 is accommodated in the accommodating groove 104, the first ferromagnetic element 162 and the second ferromagnetic element 108 that are attracted to each other can prevent the keyboard 16 from facing parallel to the bottom surface of the accommodating groove 104. The direction deviates from the purpose of the accommodating groove 104 . the

Please refer to FIG. 4A and FIG. 4B. FIG. 4A is a cross-sectional view of the tablet computer 1 shown in FIG. 3 along the line segment 4A-4A'. FIG. 4B is another cross-sectional view of the tablet computer 1 shown in FIG. 4A , where the keyboard 16 is accommodated in the accommodating groove 104 . the

As shown in FIG. 4A and FIG. 4B , in this embodiment, the groove 106 of the accommodating groove 104 has an entrance section 106a, a tapered section 106b and an engaging section 106c. The entrance section 106a of the groove 106 is connected between the opening 102 and the tapered section 106b, and the tapered section 106b is connected between the entrance section 106a and the engaging section 106c. Specifically, the width of the inlet section 106a is greater than that of the locking section 106c, and the width of the tapering section 106b is tapered from the inlet end to the locking end. In other words, the width of the entrance section 106a is greater than the width of the tapered section 106b, and the width of the tapered section 106b is larger than the width of the engaging section 106c. the

Therefore, when the keyboard 16 of the tablet computer 1 is placed into the accommodating groove 104, the entrance section 106a of the groove 106 has the effect of allowing the raised bar 160 on the keyboard 16 to easily enter, and the tapered section 106b of the groove 106 has the function of The effect of guiding the engaging structure to move toward the engaging section 106c smoothly, and the engaging section 106c of the groove 106 has an engaging raised strip 160 to prevent the keyboard 16 from detaching from the accommodating groove 104 in a direction away from the bottom surface of the accommodating groove 104 effect. the

As shown in FIG. 2 , FIG. 4A and FIG. 4B , in this embodiment, the bottom surface of the accommodating groove 104 has a parallel portion 104 a and a curved portion 104 b. The parallel portion 104 a of the bottom surface of the accommodating groove 104 corresponds to the engaging section 106 c and part of the tapered section 106 b of the groove 106 , and is parallel to the keyboard 16 . Therefore, when the keyboard 16 is accommodated in the accommodating groove 104 , it can be carried on the parallel portion 104 a on the bottom surface of the accommodating groove 104 . The curved portion 104b on the bottom surface of the receiving groove 104 is connected to the parallel portion 104a, corresponds to the entrance section 106a and part of the tapered section 106b of the groove 106, and bends toward the opening 102 of the housing 10 along the direction away from the engaging section 106c. Therefore, when the user intends to place the keyboard 16 in the accommodating groove 104 , the keyboard 16 can be assembled toward the accommodating groove 104 along the assembling direction A of the parallel portion 104 a that is not parallel to the bottom surface of the accommodating groove 104 . the

In other words, the curved portion 104b on the bottom surface of the receiving groove 104 has the effect of allowing the user to assemble the keyboard 16 to the receiving groove 104 in the combination direction A that is not parallel to the parallel portion 104a of the receiving groove 104, and the groove 106 The entrance section 106 a of the opening has a feature of expansion, which further has the effect of increasing the allowable error of the combination direction A, thus increasing the convenience for the user to combine the keyboard 16 into the accommodating groove 104 . the

In addition, it should be noted that the engaging section 106c of the groove 106 has a fixed width. The length of the protruding strip 160 is slightly less than the sum of the length of the engaging section 106c and the length of the tapered section 106b. A portion of the raised bar 160 is accommodated in the tapered section 106b. Another part of the protrusion 160 is engaged in the engaging section 106c. When the keyboard 16 of the tablet computer 1 is placed in the accommodating groove 104, the part of the protrusion 160 of the keyboard 16 accommodated in the engaging section 106c of the groove 106 fits with the engaging section 106c, so it can be firmly engaged. Rib 160. And because the width of the tapered section 106b of the groove 106 is greater than the width of the engaging section 106c, the part of the raised bar 160 of the keyboard 16 accommodated in the tapered section 106b is not engaged with the tapered section 106b (such as shown by the dotted line in Figure 4B). the

However, the utility model is not limited thereto. In another embodiment, the protrusion 160 of the keyboard 16 may only have a portion accommodated in the engaging section 106c of the groove 106 , but not a portion accommodated in the tapered section 106b. the

Please refer to FIG. 5 , which is a cross-sectional view illustrating the tablet computer 1 shown in FIG. 4B according to another embodiment. the

As shown in FIG. 5 , in this embodiment, the engaging structure of the keyboard 36 is two bumps 360 . When the keyboard 36 of the tablet computer 1 is placed in the accommodating groove 104 , the two protrusions 360 of the keyboard 36 are accommodated in the engaging section 106 c of the groove 106 , and are firmly engaged with the engaging section 106 c. Therefore, the engaging section 106c of the groove 106 has the effect of engaging the two protrusions 360 to prevent the keyboard 36 from detaching from the receiving groove 104 in a direction away from the bottom surface of the receiving groove 104 . the

Please refer to FIG. 6A and FIG. 6B . FIG. 6A is a partial cross-sectional view of the tablet computer 1 shown in FIG. 3 along the line segment 6A-6A'. FIG. 6B is another partial cross-sectional view of the tablet computer 1 shown in FIG. 6A , wherein the cover 14 is rotated relative to the housing 10 to a closed position. the

As shown in FIG. 6A and FIG. 6B , in this embodiment, the casing 10 of the tablet computer 1 further has a hole 110 , and the hole 110 of the casing 10 is adjacent to the accommodating groove 104 . The tablet 1 also includes a hinge 18 . The hinge 18 of the tablet computer 1 includes a pivot portion 180 and a connecting portion 182 . The pivot portion 180 of the hinge 18 is pivotally connected to the casing 10 inside the casing 10 . Both ends of the connecting portion 182 of the hinge 18 are respectively connected to the pivoting portion 180 and the cover 14 . In this embodiment, the shape formed by the pivoting portion 180 and the connecting portion 182 of the hinge 18 is V-shaped, but the present invention is not limited thereto. the

When the cover 14 is rotated to the unfolded position relative to the housing 10 via the hinge 18 (as shown in FIG. 1C and FIG. 6A ), the pivot portion 180 of the hinge 18 abuts against the inner surface 10a of the housing 10, and the connecting portion of the hinge 18 182 is exposed through the hole 110 of the casing 10 . When the cover 14 is rotated relative to the housing 10 via the hinge 18 to the closed position (as shown in FIG. 1B and FIG. 6B ), the pivotal portion 180 and the connecting portion 182 of the hinge 18 are located in the hole 110 . the

Also shown in FIG. 6A and FIG. 6B , the tablet computer 1 further includes an elastic piece 20 . The elastic sheet 20 of the tablet computer 1 is disposed in the casing 10 and adjacent to the hole 110 . Specifically, the pivotal portion 180 of the hinge 18 and the elastic piece 20 are respectively located on two opposite sides of the hole 110 , and respectively extend towards the center of the hole 110 . the

When the cover body 14 of the tablet computer 1 is in the closed position (as shown in FIG. 1B and FIG. 6B ), the elastic piece 20 pushes the connecting portion 182 of the hinge 18, causing the cover body 14 to close toward the opening 102, thereby exerting force to make the Lid body 14 stops at the effect of covering position. When the cover 14 of the tablet computer 1 is in the unfolded position (as shown in FIG. 1C and FIG. 6A ), the elastic piece 20 pushes the pivotal portion 180 of the hinge 18, causing the pivotal portion 180 to abut against the inner surface 10a, thereby exerting force. The force makes the cover body 14 stop at the unfolded position. the

From the above detailed description of the specific embodiments of the present utility model, it can be clearly seen that a main technical feature of the tablet computer provided by the utility model is that the tablet computer has an accommodating groove for accommodating a keyboard, and a cover Fit the cover of the holding tank. Therefore, when the cover body covers the accommodating groove, the keyboard can be stored inside the tablet computer, so that the back of the tablet computer still maintains the original integrity, making it impossible for people to detect the presence of the keyboard; , supports the tablet to stand. Another main technical feature of the tablet computer of the present invention is that the groove of the accommodating groove has an entrance section, a tapered section and an engaging section with widths ranging from large to small. Therefore, when the keyboard is placed into the accommodating slot, the entrance section has the effect of allowing the engaging structure on the keyboard to easily enter, the tapered section has the effect of smoothly guiding the engaging structure to move toward the engaging section, and the locking The engaging section has a locking structure to prevent the keyboard from detaching from the receiving slot in a direction away from the bottom surface of the receiving slot. the

Although the present utility model has been disclosed as above in terms of implementation, it is not intended to limit the present utility model. Anyone skilled in the art can make various changes and modifications without departing from the spirit and scope of the present utility model. Therefore, the protection scope of the present utility model should be defined by the claims. the

Claims (10)

1. A tablet computer, characterized in that, comprising: A housing with an opening and an accommodating groove, the accommodating groove is formed by inwardly recessing the opening, the side wall of the accommodating groove has a groove, and the groove has an entrance section and an engaging section, The inlet section is connected between the opening and the engaging section, wherein the width of the inlet section is greater than the width of the engaging section; A cover, pivotally connected to the housing, is used to rotate relative to the housing between a cover position and an unfolded position, the cover covers the opening when it is rotated to the cover position, and is rotated to supporting the housing to stand in the deployed position; and A keyboard is detachably accommodated in the accommodating groove and includes at least one engaging structure, wherein the engaging structure is located at the periphery of the keyboard and is engaged in the engaging section. 2. The tablet computer according to claim 1, wherein the bottom of the accommodation groove is parallel to the part of the engaging section, and the bottom of the accommodation groove is facing the part of the entrance section. and bend toward the opening in a direction away from the engaging section. 3. The tablet computer according to claim 1, wherein the groove further has a tapered section, two ends of which are respectively connected to the inlet end and the engaging end, and the width of the tapered section is determined by the inlet end Tapers toward the snapping end. 4. The tablet computer according to claim 3, wherein the bottom surface of the accommodating groove has a parallel portion and a curved portion, the parallel portion corresponds to the engaging section and part of the tapered section, and is parallel to the keyboard , the curved portion connects the parallel portion, corresponds to the inlet section and part of the tapered section, and bends toward the opening along a direction away from the engaging section. 5 . The tablet computer according to claim 4 , wherein the keyboard is accommodated in the accommodating groove and carried on the parallel portion. 6 . 6. The tablet computer according to claim 5, wherein the engaging structure is a convex strip, the length of the convex strip is equal to or slightly less than the sum of the length of the engaging section and the length of the tapered section, The engaging section has a fixed width, a part of the raised strip is accommodated in the tapered section, and another part of the raised strip is engaged in the engaging section. 7 . The tablet computer according to claim 1 , wherein the engaging structure comprises several protrusions, the engaging section has a fixed width, and the protrusions are engaged in the engaging section. 8. The tablet computer according to claim 1, wherein the keyboard comprises a first ferromagnetic element, and the casing comprises a second ferromagnetic element disposed on the side wall of the accommodating groove for When the keyboard is accommodated in the accommodating slot, the first ferromagnetic element is attracted. 9. The tablet computer according to claim 1, wherein the housing also has a hole, and the tablet computer further comprises a hinge, and the hinge comprises: a pivot portion pivotally connects the housing within the housing; and a connecting part, the two ends of which are respectively connected to the pivotal part and the cover, Wherein when the cover is in the closed position, the pivot joint and the connection part are located in the hole, and when the cover is in the unfolded position, the pivot joint abuts against an inner surface of the casing , and the connecting portion is exposed through the hole. 10. The tablet computer according to claim 8, characterized in that, the tablet computer further comprises a shrapnel, the shrapnel is arranged in the housing and adjacent to the hole, when the cover is in the closed position, the shrapnel Pushing the connecting portion causes the cover to close toward the opening, and when the cover is at the unfolded position, the elastic piece pushes the pivot portion so that the pivot portion abuts against the inner surface.

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