Calculator handwriting board

Abstract

The utility model belongs to the field of handwriting boards, and particularly relates to a calculator handwriting board, which comprises a calculator main body and a handwriting board main body, the calculator main body is rotatably connected with the handwriting board main body, the joint of the calculator main body and the handwriting board main body is provided with a cylinder structure with the same structure, the cylinder structure is inserted through a bolt pin, and the calculator main body is connected with the handwriting board main body. The plug pin is detachably inserted into the cylinder structure; the calculator main body comprises a calculator bottom shell, a calculator display screen, a calculator PCBA (Printed Circuit Board Assembly) board, calculator keys and a calculator surface shell; the handwriting board main body comprises a handwriting board surface shell, an LCD (Liquid Crystal Display) liquid crystal writing film, a screen gasket, a handwriting board PCBA (Printed Circuit Board Assembly) board, a second power supply plugging part, a toggle switch, a pressing switch, a handwriting board bottom shell and a handwriting pen; the device can realize inductive clearing; a bottom mechanical clearing switch is designed in a shared manner, so that touch insensitivity is avoided, and an alternative scheme is provided; the handwriting pen is hidden in the handwriting board bottom shell and is not prone to being lost, the handwriting pen containing cavity is formed in the handwriting board bottom shell, and the size of the device is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of liquid crystal handwriting tablets, in particular to a calculator handwriting tablet which can combine the functions of a handwriting tablet and a calculator. Background Art

[0002] Although with the development of smart phones, calculators can be built into mobile phones as regular software, the demand for calculators will become the norm in some areas, such as places where beginners are not allowed to bring mobile phones. There is not much demand for scientific calculators for daily calculations, and ordinary calculators are difficult to record a variety of data.

[0003] Although several prior art technologies exist, such as Chinese patent application CN210038769U, which discloses a calculator with a notepad function, comprising a calculator body and a handwriting tablet body, a rotating mechanism is provided at the intersection of the calculator body and the handwriting tablet body. This rotating mechanism connects the handwriting tablet body to the calculator body, driving the handwriting tablet body to rotate and flip along the edge of the calculator body, thereby combining the calculation function of the calculator body with the writing function of the handwriting tablet body to form a single integrated product, thereby achieving the purpose of having both calculation and handwriting tablet functions.

[0004] CN203287893U discloses a computing device for data statistics, and discloses a calculator body (1), wherein one side of the calculator body has calculator keys (2) and a calculator display screen (3), and the other side of the calculator body is equipped with an erasable dust-free handwriting board (4), and the inside of the calculator body has a control main board, and the control main board is connected to a micro printer (5) and a solar panel.

[0005] However, although the above-mentioned calculator devices all enable recording on the handwriting board during calculations, in actual use, due to the characteristics of the handwriting board, erasing is often inconvenient. The content recorded on the handwriting board is usually erased by pressing a certain erase button with a finger, and generally, there are no idle fingers when writing notes.

[0006] And the existing calculator is generally composed of keys, which are usually hard, which may cause errors in the handwriting board or even damage it earlier, thereby reducing its lifespan, such as the technical solution disclosed in CN210038769U.

[0007] In order to solve the above problems, the applicant has proposed a calculator handwriting tablet, which can not only facilitate recording of data during calculations, but also improve the user's comfort and extend the life of the calculator handwriting tablet. Utility Model Content

[0008] In order to make up for the deficiencies of the prior art and solve the above problems, a calculator handwriting tablet is proposed.

[0009] The technical solution adopted by the present invention to solve its technical problem is: the calculator handwriting tablet described in the present invention includes a calculator body and a handwriting tablet body, the calculator body and the handwriting tablet body are rotatably connected, and a cylindrical structure with the same structure is provided at the connection between the calculator body and the handwriting tablet body, the cylindrical structure is connected by a pin, and the pin can be detachably inserted into the cylindrical structure.

[0010] In some embodiments, the calculator body includes a calculator bottom shell, a calculator display screen, a calculator PCBA, calculator buttons, and a calculator top shell.

[0011] In some embodiments, the calculator cover, calculator buttons, calculator PCBA, and calculator bottom cover are installed in sequence.

[0012] In some embodiments, the calculator bottom shell includes a power plug portion, and the bottom circumferentially of the inner wall of the calculator bottom shell is provided with several protrusions extending along the depth direction of the calculator. The middle part of the calculator bottom shell is also provided with a mounting portion, and the mounting portion is used to install and position the calculator PCBA board. The inner wall of the calculator bottom shell is also provided with several grooves and / or protrusions along the circumferential upper part, and the several grooves and / or protrusions are used to match the protrusions and / or grooves provided circumferentially with the calculator cover to form a snap-fit structure.

[0013] In some embodiments, the first power plug-in portion is a battery clasp and a button battery, the battery clasp has an arc-shaped button battery mounting position, and the battery clasp can be detachably installed in the power plug-in portion, the battery clasp has an opening, the diameter of the button battery is larger than the opening of the battery clasp, the button battery can only be removed in the axial direction of the battery clasp, and the battery clasp is elastically inserted into the power plug-in portion.

[0014] In some embodiments, a recess for mounting an LCD screen is provided in the bottom shell of the calculator, and the recess matches the LCD screen.

[0015] In some embodiments, the calculator cover is provided with a keyboard accommodating portion and a display screen accommodating portion, the keyboard accommodating portion is used to accommodate the keyboard, and the display screen accommodating portion is used to accommodate the display screen. Furthermore, the keyboard accommodating portion is a hollow portion having a plurality of grids, and the hollow portion corresponds to the key positions of the keyboard one by one.

[0016] In some embodiments, the keyboard is a silicone key, and the silicone key is configured on a silicone key receiving plate. The receiving plate is provided with a plurality of installation positions, and the installation positions correspond one-to-one to the installation positions in the bottom shell of the calculator.

[0017] In some embodiments, a magnet mounting portion is provided on the side of the edge of the bottom support grid that is rotatably connected to the calculator body and the handwriting tablet body, and a first magnet is inserted into the magnet mounting portion. The first magnet and the second magnet provided at the bottom shell of the handwriting tablet are used in conjunction to facilitate opening and closing the calculator body and the handwriting tablet body.

[0018] In some embodiments, the calculator PCBA is electrically connected to the silicone button, the LCD display, and a power supply.

[0019] In some embodiments, the handwriting tablet body includes a handwriting tablet cover, an LCD liquid crystal writing film, a screen gasket, a handwriting tablet PCBA, a second power plug, a toggle switch, a push switch, a handwriting tablet bottom cover, and a stylus.

[0020] In some embodiments, a Hall switch is provided on the handwriting tablet PCBA.

[0021] In some embodiments, the bottom shell of the handwriting tablet has a stylus accommodating portion, a second power plug portion, a toggle switch and a push switch accommodating portion, and a plurality of grooves and / or protrusions are circumferentially arranged on the bottom of the inner wall of the bottom shell of the handwriting tablet. The plurality of grooves and / or protrusions are used to match the protrusions and / or grooves circumferentially arranged on the surface shell of the handwriting tablet to form a snap-fit structure.

[0022] In some embodiments, the liquid crystal writing film, screen gasket, handwriting board PCBA, button battery, toggle switch, and push switch are electrically connected.

[0023] In some embodiments, the stylus is inserted into the bottom shell of the handwriting tablet. The stylus is provided with a magnetic sensing area, and the magnetic sensing area is used to interact with the Hall switch on the handwriting tablet PCBA to facilitate the switching of the handwriting tablet.

[0024] In some embodiments, the stylus has a stylus body, a stylus Hall induction magnet, and a pen patch. The stylus Hall induction magnet is arranged on the top of the stylus, and the magnet is sealed in the magnet mounting position through the stylus patch.

[0025] In some embodiments, the bottom of the handwriting tablet body is provided in the bottom shell of the handwriting tablet and also has a lock screen toggle switch and a mechanical press clear screen switch.

[0026] In some embodiments, the bottom wall of the tablet is arranged as a grid-like bottom support grid. A second magnet is provided on one side of the bottom support grid opposite the calculator body and the tablet body. The second magnet and the second magnet on the bottom housing of the calculator enable quick opening and closing of the calculator tablet.

[0027] Beneficial effects of the utility model:

[0028] 1) This new model can realize induction clearing. Since the Hall effect induction magnet of the stylus is arranged on the top of the stylus, the contents of the stylus can be cleared quickly and conveniently by touching the stylus to the tablet body. The Hall effect induction magnet is arranged on the accessory pen, which is convenient, beautiful and not easy to lose.

[0029] 2) The bottom mechanical clear switch is shared to avoid insensitive touch and provide an alternative solution.

[0030] 3) The stylus is hidden in the bottom shell of the tablet, making it difficult to lose. In addition, a stylus accommodating cavity is arranged in the bottom shell of the tablet, reducing the size of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of this application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0032] Figure 1 It is a three-dimensional diagram of a certain embodiment of the utility model;

[0033] Figure 2 This is an expanded view of a certain embodiment of the present utility model;

[0034] Figure 3 This is a disassembled diagram of a certain embodiment of the utility model;

[0035] Figure 4 This is an exploded view of the handwriting tablet body of a certain embodiment of the present utility model;

[0036] Figure 5 It is an exploded view of a calculator body according to a certain embodiment of the present utility model.

[0037] Legend:

[0038] 1. Calculator body; 11. Display screen housing; 12. Silicone buttons; 13. Calculator PCBA; 14. LCD display; 15. First magnet; 16. Calculator bottom case; 17. Calculator battery; 18. Calculator battery clip; 2. Writing tablet body; 21. Hall effect switch; 22. Writing tablet top case; 23. LCD writing film; 24. Screen gasket; 25. Fixing screws; 26. Writing tablet PCBA; 27. Toggle switch; 28. Writing tablet button battery; 29. Writing tablet battery clip; 210. Push-button switch; 211. Second magnet; 212. Stylus; 213. Stylus Hall effect magnet; 214. Stylus patch; 3. Cylindrical structure; 31. Pin. DETAILED DESCRIPTION

[0039] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0040] In this application, expressions such as "first" and "second" are used for the convenience of explanation. Such expressions do not represent a limitation on the technology but are used to clearly indicate the requirements of the technical solution.

[0041] Specific examples are given below. Example 1

[0042] See also Figure 1-Figure 5 The utility model provides a calculator handwriting tablet, including a calculator body 1 and a handwriting tablet body 2. The calculator body 1 and the handwriting tablet body 2 are rotatably connected. A cylindrical structure 3 with the same structure is provided at the connection between the calculator body 1 and the handwriting tablet body 2. The cylindrical structure 3 is plugged in by a pin 31, and the pin 31 can be detachably inserted into the cylindrical structure 3.

[0043] The calculator body 1 includes a calculator bottom shell 16 , an LCD display screen 14 , a calculator PCBA board 13 , calculator keys 12 , and a calculator top shell 19 .

[0044] The calculator front cover 19, calculator buttons 12, calculator PCBA board 13, and calculator bottom cover 16 are installed in sequence.

[0045] The calculator bottom shell 16 includes a power plug portion, and the bottom of the inner wall of the calculator bottom shell 16 is circumferentially provided with several protrusions 161 extending along the depth direction of the calculator. The middle part of the calculator bottom shell 16 is also provided with a mounting portion, and the mounting portion is used to install and position the calculator PCBA board 13. The inner wall of the calculator bottom shell 16 is also circumferentially provided with several grooves 162. The several grooves 162 are used to match with the protrusions 191 circumferentially provided on the calculator front shell 19 to form a snap-fit structure.

[0046] The first power plug part is a calculator battery buckle 18 and a calculator button battery 17. The calculator battery buckle 18 has an arc-shaped button battery 17 installation position, and the button battery 17 buckle can be detachably installed in the power plug part. The button battery buckle 18 has an opening. The diameter of the button battery 17 is larger than the opening of the battery buckle 18. The button battery 17 can only be removed in the axial direction of the battery buckle. The battery buckle is elastically inserted into the power plug part.

[0047] The calculator bottom shell 16 is provided with a recess for mounting the LCD screen 14 , and the recess matches the LCD screen 14 .

[0048] The calculator cover 19 is provided with a keyboard accommodating portion and a display screen accommodating portion 11. The keyboard accommodating portion is used to accommodate the keyboard, and the display screen accommodating portion 11 is used to accommodate the LCD screen 14. The keyboard accommodating portion is a hollow portion with several grids, and the hollow portion corresponds to the key positions of the keyboard one by one.

[0049] The keyboard is a silicone key 12, which is arranged on a silicone key receiving plate. The receiving plate is provided with a plurality of installation positions, and the installation positions correspond to the installation positions in the bottom shell of the calculator.

[0050] A magnet mounting portion is provided on the other side of the edge of the bottom support grid that is rotatably connected to the calculator body 1 and the handwriting tablet body 2. A first magnet 15 is inserted into the magnet mounting portion. The first magnet 15 and the second magnet 211 provided at the bottom shell of the handwriting tablet are used in conjunction with each other to facilitate opening and closing the calculator body 1 and the handwriting tablet body 2.

[0051] The calculator PCBA board 13 is electrically connected to the silicone button 12 , the LCD display 13 , and the power supply 17 .

[0052] The handwriting tablet body 1 includes a handwriting tablet cover 22 , an LCD liquid crystal writing film 23 , a screen gasket 24 , a handwriting tablet PCBA board 26 , a second power plug part, a toggle switch 27 , a push switch 28 , and a stylus 212 .

[0053] A Hall switch 21 is provided on the handwriting board PCBA.

[0054] The bottom shell of the handwriting tablet has a stylus accommodating portion, a second power plug portion, a toggle switch 27 and a push switch 210 accommodating portion, and a plurality of grooves and / or protrusions are arranged along the circumference of the bottom inner wall of the handwriting tablet bottom shell. The plurality of grooves and / or protrusions are used to match the protrusions and / or grooves arranged circumferentially on the handwriting tablet surface shell to form a snap-fit structure.

[0055] The LCD liquid crystal writing film 23, screen spacer 24, handwriting board PCBA 26, button battery 28, toggle switch 27, and push switch 210 are electrically connected.

[0056] The stylus 212 is inserted into the bottom shell of the handwriting tablet. The stylus is provided with a magnetic sensing area. The magnetic sensing area is used to interact with the Hall switch on the handwriting tablet PCBA to facilitate the switching of the handwriting tablet 2.

[0057] The stylus pen includes a stylus pen body 212 , a stylus pen Hall effect sensing magnet 213 and a pen patch 214 . The stylus pen Hall effect sensing magnet is arranged on the top of the stylus pen, and the magnet 213 is sealed at the magnet mounting position by the stylus pen patch 214 .

[0058] The bottom of the handwriting tablet body 2 is provided with a screen lock toggle switch 27 and a mechanical press clear screen switch 210 in the bottom shell of the handwriting tablet.

[0059] The bottom wall of the tablet's bottom housing is arranged as a grid-like bottom support grid. A second magnet is provided on one side of the bottom support grid opposite the calculator body 1 and the tablet body 2. The second magnet and the second magnet of the calculator bottom housing enable quick opening and closing of the calculator tablet. Example 2

[0060] The difference from Example 1 is that the Hall switch is replaced by a clear button.

[0061] This new handwriting tablet partially uses a Hall switch, which can be cleared by touching the switch with a pen, improving the comfort of use and optimizing the user experience of the handwriting tablet. It also has multiple redundant designs to prevent the handwriting tablet from malfunctioning during operation. It uses two power supply modes to effectively prevent the wiring between the two and the problem of the wiring breaking during rotation.

[0062] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention as claimed.

Claims

1. A calculator handwriting tablet, comprising a calculator body and a handwriting tablet body, characterized in that: The calculator body and the handwriting tablet body are rotatably connected, and a cylindrical structure with the same structure is provided at the connection between the calculator body and the handwriting tablet body. The cylindrical structure is plugged in by a pin, and the pin is detachably inserted into the cylindrical structure; The calculator body includes a calculator bottom shell, a calculator display screen, a calculator PCBA board, calculator buttons, and a calculator cover; The handwriting tablet body includes a handwriting tablet cover, an LCD liquid crystal writing film, a screen gasket, a handwriting tablet PCBA, a second power plug, a toggle switch, a push switch, a handwriting tablet bottom shell and a stylus; a Hall switch is provided on the handwriting tablet PCBA, the stylus is inserted into the handwriting tablet bottom shell, and the stylus is provided with a magnetic sensing area, which is used to interact with the Hall switch on the handwriting tablet PCBA to realize convenient clearing of the handwriting tablet.

2. A calculator handwriting tablet according to claim 1, characterized in that: The button is a silicone button, which is arranged on a silicone button receiving plate. The receiving plate is provided with a plurality of installation positions, and the installation positions correspond one-to-one to the installation positions in the bottom shell of the calculator.

3. A calculator handwriting tablet according to claim 2, characterized in that: The bottom of the handwriting tablet body is arranged in the bottom shell of the handwriting tablet and is also provided with a lock screen toggle switch and a mechanical press screen clearing switch.

4. The calculator handwriting tablet according to claim 1, wherein: The bottom shell of the handwriting tablet has a handwriting pen accommodating portion, a second power plug portion, a toggle switch and a push switch accommodating portion, and a plurality of grooves and / or protrusions are arranged on the bottom of the inner wall of the bottom shell of the handwriting tablet along the circumferential direction.

5. A calculator handwriting tablet according to claim 4, characterized in that: A magnet mounting portion is provided on the other side of the rotational connection between the calculator body and the handwriting tablet body. A first magnet is inserted into the magnet mounting portion. The first magnet and the second magnet provided on the bottom shell of the handwriting tablet are used in conjunction with each other to facilitate opening and closing the calculator body and the handwriting tablet body.

6. A calculator handwriting tablet according to claim 5, characterized in that: The stylus pen comprises a stylus pen body, a stylus pen Hall induction magnet and a pen patch. The stylus pen Hall induction magnet is arranged on the top of the stylus pen, and the magnet is sealed at the magnet mounting position through the stylus pen patch.

7. The calculator handwriting tablet according to claim 1, characterized in that: The LCD liquid crystal writing film, screen gasket, handwriting board PCBA, button battery, toggle switch, and push switch are electrically connected.

8. The calculator handwriting tablet according to claim 1, characterized in that: The bottom of the handwriting tablet body is arranged in the bottom shell of the handwriting tablet and is also provided with a lock screen toggle switch and a mechanical press screen clearing switch.

9. The calculator handwriting tablet according to claim 1, characterized in that: The Hall switch is replaced with a clear button.

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