A multifunctional digital keyboard

Abstract

The utility model discloses a multifunctional digital keyboard, including keyboard casing, and be located at the digital key, display screen and trackball of keyboard casing front, be equipped with main control board, ball seat and photoelectric sensor in keyboard casing, trackball is set up on ball seat, and ball seat is opened to have the identification hole, and photoelectric sensor is close to the identification hole arrangement, to gather the movement signal of trackball, and photoelectric sensor, digital key and display screen all are with main control board electric connection. Through the integration of digital key, display screen and trackball in the front of keyboard casing, the user can realize the quick positioning and operation of the cursor through the trackball while carrying out the digital input, without additional equipped mouse, effectively save the desktop space, improve the office efficiency, the display screen can display the input information, operation state and other contents in real time, facilitate the user intuitive acquisition feedback, reduce the misoperation, especially suitable for the scene of high digital operation requirement and limited space, greatly expand the use range of keyboard.

Description

Technical Field

[0001] This utility model relates to the field of keyboard technology, and in particular to a multi-functional numeric keyboard. Background Technology

[0002] In modern office and industrial control fields, numeric keypads are widely used as common input devices. Traditional numeric keypads typically only have numeric input functions. When users need to perform operations such as cursor positioning and menu selection, they need to use additional devices such as mice. This not only occupies desktop space but also increases equipment costs and operational complexity, reducing work efficiency. In addition, in some scenarios with limited space or complex environments (such as financial counters, medical equipment operation, and industrial control terminals), traditional mice are easily affected by environmental factors such as desktop flatness, dust, and oil stains, resulting in insensitive operation or even failure, making it difficult to meet the needs of precise operation.

[0003] Meanwhile, existing numeric keypads lack the function of displaying input information and operation status in real time. Users cannot obtain timely operation feedback, which easily leads to erroneous operations and makes it difficult to effectively verify the input content. As various industries continue to increase their requirements for equipment integration, ease of operation, and environmental adaptability, existing numeric keypads can no longer meet diverse usage needs. There is an urgent need for a numeric keypad with richer functions, more convenient operation, and stronger environmental adaptability to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a multifunctional digital keyboard.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] This utility model provides a multifunctional digital keyboard, including a keyboard housing, and number keys, a display screen, and a trackball disposed on the front of the keyboard housing. The keyboard housing contains a main control board, a ball base, and a photoelectric sensor. The trackball is movably disposed on the ball base, and the ball base has an identification hole. The photoelectric sensor is arranged close to the identification hole to collect the motion signal of the trackball. The photoelectric sensor, number keys, and display screen are all electrically connected to the main control board.

[0007] Furthermore, the display screen and the trackball are located in front of the number keys, and the display screen and the trackball are arranged side by side.

[0008] Furthermore, the display screen is located on the left side of the trackball.

[0009] Furthermore, the ball seat is provided with a ball groove, and the side wall of the ball groove is provided with a plurality of balls. The track ball is installed in the ball groove and supported by the balls.

[0010] Furthermore, the display screen is a touch screen.

[0011] Furthermore, a card reader slot is provided on the side of the keyboard housing.

[0012] Furthermore, the keyboard housing is also provided with a sealing member on its side, which can close the slot of the card reader.

[0013] Furthermore, the side of the keyboard housing is provided with a latching part that is connected to the main keyboard. The latching part engages with the slot of the main keyboard, and the multi-function numeric keypad is wirelessly connected to the main keyboard.

[0014] Furthermore, the snap-fit ​​part is made of magnetic material.

[0015] Furthermore, the card connector and the card reader slot are located on different sides of the keyboard housing.

[0016] The advantages of this utility model compared to existing technologies are as follows: A multifunctional numeric keypad includes a keypad housing, numeric keys, a display screen, and a trackball located on the front of the keypad housing. The keypad housing contains a main control board, a ball mount, and a photoelectric sensor. The trackball is movably mounted on the ball mount, which has a recognition hole. The photoelectric sensor is positioned near the recognition hole to collect the motion signal of the trackball. The photoelectric sensor, numeric keys, and display screen are all electrically connected to the main control board. This utility model integrates the numeric keys, display screen, and trackball on the front of the keypad housing. Users can quickly locate and operate the cursor using the trackball while inputting numbers, eliminating the need for a separate mouse, effectively saving desktop space and improving office efficiency. Simultaneously, the display screen can show input information and operation status in real time, allowing users to intuitively obtain feedback and reduce errors. It is particularly suitable for scenarios with high requirements for digital operation and limited space, greatly expanding the scope of keyboard usage.

[0017] The above description is only an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model, it can be implemented according to the contents of the specification. In order to make the above and other objectives, features and advantages of this utility model more obvious and easy to understand, the following are preferred embodiments, which are described in detail below. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 A schematic diagram of the structure of a multi-functional digital keyboard provided for a specific embodiment of this utility model;

[0020] Figure 2 A structural schematic diagram of a multifunctional digital keyboard from another perspective, provided for a specific embodiment of this utility model;

[0021] Figure 3 A schematic diagram illustrating the assembly of a trackball and a base in a multifunctional digital keypad, provided for a specific embodiment of this utility model;

[0022] Figure 4 An exploded view of the trackball and base in a multifunctional digital keypad provided for a specific embodiment of this utility model.

[0023] Figure Labels

[0024] 1. Keyboard housing; 2. Numeric keypad; 3. Trackball; 4. Display screen; 5. Card reader slot; 6. Ball base; 61. Ball groove; 611. Ball bearing; 612. Identification hole; 7. Photoelectric sensor. Detailed Implementation

[0025] The technical solution of this utility model will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0030] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0031] like Figures 1 to 4 As shown, this utility model embodiment provides a multi-functional digital keyboard, including a keyboard housing 1, and numeric keys 2, a display screen 4, and a trackball 3 disposed on the front of the keyboard housing 1. The keyboard housing 1 is provided with a main control board, a ball seat 6, and a photoelectric sensor 7. The trackball 3 is movably disposed on the ball seat 6, and the ball seat 6 has an identification hole 612. The photoelectric sensor 7 is arranged close to the identification hole 612 to collect the motion signal of the trackball 3. The photoelectric sensor 7, numeric keys 2, and display screen 4 are all electrically connected to the main control board.

[0032] The keyboard housing 1 is made of engineering plastics, such as an alloy of polycarbonate (PC) and acrylonitrile-butadiene-styrene copolymer (ABS), which has good strength and wear resistance. It has multiple mounting slots and holes inside for mounting components such as the main control board and ball joint 6. For example, four silicone feet are provided on the bottom of the keyboard housing 1 to effectively increase the friction between the keyboard and the desktop, preventing the keyboard from sliding during use.

[0033] Numeric keypad 2 is mounted on the front of the keyboard housing 1. The key surface is clearly marked with numbers, and a conductive rubber or membrane switch is located below each key. Taking the conductive rubber key as an example, when the user presses the key, the conductive rubber contacts the circuit board below, forming an electrical signal circuit. This signal is transmitted to the main control board, which recognizes it as the corresponding numeric input command. Numeric keypad 2 is typically arranged in a conventional numeric keypad layout, such as 1-9 arranged in three rows and three columns, with 0 located in a separate row at the bottom, facilitating quick numeric input.

[0034] Display screen 4 is electrically connected to the main control board via a flexible printed circuit board (FPC). The size of display screen 4 is designed according to the overall size of the keyboard. For example, a 2.4-inch display screen 4 can be used for a small portable multi-function numeric keypad, while a 4.3-inch display screen 4 can be used for a larger desktop keyboard. Display screen 4 can display the user's input numeric information, operation status, and the coordinate position of the trackball 3 in real time, allowing the user to obtain intuitive feedback.

[0035] The trackball 3 has a spherical structure, made of a 20mm diameter metal sphere with an anti-slip surface. The trackball 3 is movably mounted on a ball base 6, which is fixed to the keyboard housing 1 by screws. For example, the ball base 6 has four screw holes at its bottom, which are used to secure it to the mounting slot at the bottom of the keyboard housing 1. The trackball 3 can roll freely on the ball base 6, and the user can move it in different directions and speeds by flicking it with their fingers. The ball base 6 has a recognition hole 612, which is a circular through-hole with a diameter slightly larger than the sensing head of the photoelectric sensor 7. The photoelectric sensor 7 is a grating-type photoelectric sensor, with its sensing head positioned close to the recognition hole 612. When the trackball 3 rolls, it causes a light-shielding plate inside the ball base 6 to rotate. Changes in the light blocked or transmitted through the recognition hole 612 are sensed by the photoelectric sensor 7 and converted into an electrical signal. This signal contains information about the direction and distance of the trackball 3's movement and is then transmitted to the main control board for processing. For example, when the trackball 3 rolls to the left, the photoelectric sensor 7 outputs a corresponding leftward motion signal, and the main control board controls the cursor on the computer screen to move to the left based on this signal.

[0036] The main control board uses a microcontroller unit (MCU) as the main control chip, such as the STM32 series microcontroller. The main control board integrates multiple signal processing circuits and communication interface circuits. The numeric keypad 2, display screen 4, and photoelectric sensor 7 are all connected to their corresponding interfaces on the main control board via wires or ribbon cables. The main control board processes and controls the signals transmitted from each component. For example, when the main control board receives an input signal from the numeric keypad 2, it converts it into a corresponding digital code and controls the display screen 4 to display that number; when it receives a motion signal from the trackball 3 of the photoelectric sensor 7, it converts it into a cursor movement command according to a preset algorithm and transmits it to a computer or other device via a USB or Bluetooth communication interface.

[0037] Furthermore, such as Figure 1 As shown, the display screen 4 and trackball 3 are located in front of the number keys 2, and the display screen 4 and trackball 3 are arranged side by side.

[0038] The display screen 4 and trackball 3 are positioned directly in front of the number keys 2. The display screen 4 measures 32mm × 24mm, and the trackball 3 has a diameter of 20mm, with a 5mm gap between them to prevent interference. For ease of operation, the trackball 3 is positioned closer to the right-hand side, with the display screen 4 to its left, conforming to the right-handed operation habits of most users.

[0039] By placing the display screen 4 and trackball 3 side-by-side in front of the numeric keypad 2, users can easily observe the content on the display screen 4 without significant eye movement while inputting numbers, and simultaneously operate the trackball 3 directly with their right hand. For example, when financial personnel are entering data, their eyes can quickly switch between the numeric keypad 2 and the display screen 4 to verify the input data in real time, and they can promptly use the trackball 3 to scroll and select data tables, greatly improving work efficiency. Furthermore, this side-by-side arrangement makes full use of the space on the front of the keyboard housing 1, integrating more functional components without increasing the overall size of the keyboard. For space-constrained applications, such as bank counters and self-service terminals, this design makes the device more compact and saves operating space.

[0040] Furthermore, such as Figure 4 As shown, the ball seat 6 is provided with a ball groove 61, and the side wall of the ball groove 61 is provided with a plurality of balls 611. The track ball 3 is installed in the ball groove 61 and supported by the balls 611.

[0041] The ball seat 6 is made of high-strength engineering plastic, such as polyoxymethylene (POM), and is integrally molded using an injection molding process. The top of the ball seat 6 is recessed inward to form a ball groove 61. The shape of the ball groove 61 is adapted to the trackball 3, forming a hemispherical structure to ensure the trackball 3 can be stably placed within it. Taking a trackball 3 with a diameter of 25mm as an example, the radius of the ball groove 61 is designed to be 13mm, so that after the trackball 3 is placed, the top protrudes approximately 5mm from the surface of the ball seat 6, facilitating user operation.

[0042] The sidewall of the ball groove 61 has three evenly distributed ball mounting holes, the diameter of which is slightly larger than the diameter of the ball 611. For example, if the diameter of the ball 611 is 2mm, the ball mounting diameter is set to 2.2mm. The ball 611 is made of stainless steel with a polished surface, exhibiting good wear resistance and a low coefficient of friction. When installing the ball 611, a layer of lubricant, such as molybdenum disulfide grease, is first applied to the ball mounting hole. Then, the ball 611 is inserted into the ball mounting hole, leaving a portion of it protruding from the sidewall of the ball groove 61. When the trackball 3 is installed in the ball groove 61, the ball 611 contacts the surface of the trackball 3, forming multi-point support.

[0043] The trackball 3 is gently placed into the ball groove 61. Supported by the ball bearings 611, the trackball 3 can roll freely within the groove. The friction between the ball bearings 611 and the surface of the trackball 3 is low, allowing the user to move the trackball 3 with minimal force, thus enabling cursor movement on the screen. Furthermore, the design of the ball bearings 611 reduces direct contact and wear between the trackball 3 and the sidewalls of the ball groove 61, extending the lifespan of both the trackball 3 and the ball base 6.

[0044] Furthermore, display screen 4 is a touch screen.

[0045] The touchscreen can be a capacitive touchscreen, composed of a multi-layered composite structure. The outermost layer is a glass cover, which protects the internal structure and provides the operating surface. Its thickness is typically 0.5-1mm, for example, a 0.7mm tempered glass cover, offering good wear resistance and impact resistance. Below the glass cover is the touch sensing layer, which consists of an electrode array made of a transparent conductive material (such as indium tin oxide, ITO). The electrodes are connected by fine wires to form a capacitive sensing network. Below the sensing layer is the liquid crystal display (LCD) layer, similar in structure to a traditional LCD screen, including components such as a backlight, liquid crystal panel, and color filters, used to display images and text information.

[0046] A dedicated mounting groove for the touchscreen is designed on the keyboard housing 1. During installation, a layer of thermally conductive silicone is first applied to the bottom of the groove to conduct heat generated by the touchscreen during operation to the keyboard housing 1, aiding in heat dissipation. The touchscreen is then placed into the groove, and initial fixation is achieved using double-sided tape with good adhesion and anti-aging properties, such as acrylic double-sided tape. Next, waterproof sealant is filled into the gaps between the touchscreen and the edges of the groove to prevent dust and moisture from entering and affecting the touchscreen's performance. Silicone sealant, which offers good flexibility and sealing properties, can be used as the sealant.

[0047] The touchscreen is connected to the main control board via a flexible printed circuit board (FPC). An FPC connection interface is located at the edge of the touchscreen, and one end of the FPC is securely connected to this interface using a thermoforming process. The FPC extends along a pre-designed wiring channel within the keyboard housing 1 to the main control board. The wiring channel employs a snap-fit ​​design, with snaps placed at regular intervals to secure the FPC within the channel and prevent loosening or displacement. The other end of the FPC is electrically connected to the touchscreen interface on the main control board via a connector. The connector features a foolproof design to ensure accurate connection. When a user touches the touchscreen, the touch sensing layer detects the touch signal and transmits it to the main control board via the FPC. The main control board processes the signal and executes the corresponding operation command.

[0048] The touchscreen setup enables the multi-function numeric keypad to be operated directly by touch, allowing users to perform various operations such as clicking, swiping, and zooming by touching the screen.

[0049] Furthermore, such as Figure 2 As shown, a card reader slot 5 is provided on the side of the keyboard housing 1.

[0050] Card reader slot 5 is a rectangular slot, the size of which depends on the type of card it accommodates. Taking a common standard bank card size (85.60mm × 53.98mm) as an example, the internal dimensions of card reader slot 5 are designed to be 86mm long, 54.5mm wide, and 2mm deep, ensuring smooth insertion and removal of the bank card while preventing the card from wobbling or being inserted too deeply and difficult to remove due to its size. The slot entrance has a 45-degree chamfer to guide the card insertion and reduce insertion resistance. Multiple flexible teeth, each 0.3mm high and made of elastic silicone, are spaced apart on the inner wall of the slot. When a card is inserted, the teeth engage with the edge of the card to prevent accidental slippage.

[0051] When a card is inserted into card reader slot 5, the chip or magnetic stripe on the card contacts the metal contacts at the bottom of the slot. The contacts convert the card information into electrical signals, which are then transmitted to the main control board via wires. After the main control board analyzes and processes the signals, it can display the relevant information on display screen 4 or transmit the data to external devices via a wireless / wired communication module. Taking a bank counter scenario as an example, when a teller is handling a transaction, they only need to insert the customer's bank card into card reader slot 5 on the side of the keyboard, and the keyboard can quickly read information such as the card number and account balance without the need for an additional card reader, thus simplifying the operation process.

[0052] The card reader slot 5 is integrated into the side of the keyboard housing 1, allowing users to directly insert a card to read information while inputting numbers, eliminating the need to switch between the keyboard and a separate card reader and reducing operational steps. Furthermore, it eliminates the need for a separate card reader, effectively saving desktop space, making it particularly suitable for space-constrained work environments such as financial counters and self-service terminals.

[0053] Furthermore, the side of the keyboard housing 1 is also provided with a sealing element, which can seal the slot of the card reader 5.

[0054] The sealing element can be made of elastic silicone. Utilizing silicone's excellent flexibility, sealing properties, and wear resistance, it effectively seals the opening of card reader slot 5 while remaining durable and resistant to damage over long-term use. The sealing element is generally rectangular in shape, slightly larger than the opening of card reader slot 5.

[0055] Around the card reader slot 5 on the side of the keyboard housing 1, there is a groove with a depth of 2mm and a width consistent with the width of the sealing edge of the sealing piece. During installation, align the sealing piece with the opening of the card reader slot 5, and press it to embed the sealing edge into the groove, utilizing the elasticity of the silicone to achieve a tight fit. Alternatively, a layer of double-sided adhesive can be applied to the back of the sealing piece. This double-sided adhesive is made of acrylic material, offering good adhesion and durability, further securing the sealing piece and ensuring it will not easily detach during use.

[0056] When card reader slot 5 is not in use, the sealing piece is placed over the slot opening. The sealing ridges and grooves, along with the double-sided adhesive, seal the slot. For example, when bank tellers leave work or the keyboard is temporarily idle, installing the sealing piece effectively prevents dust accumulation inside the slot, avoiding card reading malfunctions caused by dust. When card reader slot 5 needs to be used, gently remove the sealing piece, insert the card, and close the slot again after use.

[0057] The sealing component can tightly seal the opening of the card reader slot 5, effectively preventing dust, moisture, debris and other contaminants from entering the card reader slot 5, protecting the metal contacts and circuits inside the card reader slot 5 from contamination and corrosion, and extending its service life.

[0058] Furthermore, the side of the keyboard housing 1 is also provided with a latching part that is connected to the main keyboard. The latching part is engaged with the slot of the main keyboard, and the multi-function numeric keypad is wirelessly connected to the main keyboard.

[0059] Specifically, the latching part is designed in a hook shape, and its surface has an anti-slip texture with alternating raised and recessed stripes. The stripes are 1mm apart and 0.3mm deep, facilitating grip during operation. The latching part can be integrally molded with the keyboard housing 1, or it can be fixed to the side of the keyboard housing 1 with screws.

[0060] The slots on the main keyboard correspond to the latching parts. The slots are shaped like grooves that match the barbs of the latching parts, allowing for precise insertion. The inner wall of the slots has an elastic cushioning layer made of silicone. When the latching parts are inserted into the slots, the elastic cushioning layer absorbs shock and prevents wear, while also enhancing the tightness of the latching.

[0061] Bring the multi-function numeric keypad close to the main keyboard, aligning the latching part with the slot, and then apply some pressure to insert the latching part into the slot. Due to the barbed structure of the latching part, it will automatically lock in place after insertion, achieving a secure connection. For example, in an office setting, users can quickly attach the multi-function numeric keypad to the side of the main keyboard to form a rectangular keyboard commonly found on the market, facilitating operation.

[0062] The multi-function numeric keypad connects to the main keyboard via Bluetooth wireless communication. The main control board inside the multi-function numeric keypad integrates a Bluetooth module, such as the CSR8670 Bluetooth chip, which supports the Bluetooth 5.0 protocol and features low power consumption and stable transmission. The main keyboard also has a Bluetooth receiver module that pairs with the multi-function numeric keypad's Bluetooth module. In actual use, the user enables the Bluetooth function of the multi-function numeric keypad, searches for and selects the keypad in the main keyboard's settings interface, and completes pairing to enable data transmission. Alternatively, a 2.4GHz wireless radio frequency technology can be used for connection, with wireless transceiver modules in both the multi-function numeric keypad and the main keyboard transmitting signals at a specific frequency.

[0063] Furthermore, the snap-fit ​​part is made of magnetic material.

[0064] The latching part is made of neodymium iron boron (NdFeB) permanent magnet material, which has the characteristics of high remanence, high coercivity and high magnetic energy product, providing strong magnetic force. Magnetic mating parts, also made of neodymium iron boron permanent magnet material, are installed at corresponding positions on the main keyboard. Their shape matches the latching part, and the magnetic poles of the mating parts correspond to those of the latching part, ensuring that opposite poles attract each other.

[0065] During installation, bring the multi-function numeric keypad close to the main keyboard. When the latching part approaches the magnetic mating part of the main keyboard, it will automatically adhere under magnetic force. The cooperation of the positioning flange and positioning groove ensures that the latching part is accurately inserted into the slot.

[0066] Utilizing magnetic force for automatic adsorption and connection, eliminating the need for complicated plugging, unplugging, or pressing operations, users can simply bring the multi-functional numeric keypad close to the main keyboard to complete the installation, greatly improving connection efficiency.

[0067] Furthermore, the card reader slot 5 and the card connector are located on different sides of the keyboard housing 1. For example, the card connector is located on the left side of the keyboard housing 1, and the card reader slot 5 is located on the right side of the keyboard housing 1, or the card connector is located on the right side of the keyboard housing 1, and the card reader slot 5 is located on the left side of the keyboard housing 1. This design prevents mutual interference between the two components during card insertion or removal, such as avoiding situations where operating one component causes the other component to become loose or the card to pop out accidentally. This layout makes it more convenient for operators to use. When connecting the multi-function numeric keypad, the user is not affected by the position of the card reader slot 5 and can more smoothly connect it to the main keyboard; similarly, inserting or removing cards will not be inconvenient due to the presence of the card connector, improving the convenience and efficiency of operation.

[0068] In summary, this utility model integrates the numeric keypad 2, display screen 4, and trackball 3 on the front of the keyboard housing 1. While inputting numbers, users can quickly locate and operate the cursor using the trackball 3, eliminating the need for a separate mouse, effectively saving desktop space and improving office efficiency. At the same time, the display screen 4 can display input information, operation status, and other content in real time, allowing users to intuitively obtain feedback and reduce misoperations. It is particularly suitable for scenarios with high requirements for numeric operations and limited space, greatly expanding the scope of keyboard usage.

[0069] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in this utility model, and these modifications or substitutions should all be covered within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the scope of the claims.

Claims

1. A multi-functional numeric keypad, characterized in that, The keyboard includes a keyboard housing, and numeric keys, a display screen, and a trackball located on the front of the keyboard housing. The keyboard housing contains a main control board, a ball base, and a photoelectric sensor. The trackball is movably mounted on the ball base, which has an identification hole. The photoelectric sensor is arranged near the identification hole to collect the motion signal of the trackball. The photoelectric sensor, numeric keys, and display screen are all electrically connected to the main control board.

2. A multi-functional numeric keypad according to claim 1, characterized in that, The display screen and the trackball are located in front of the number keys, and are arranged side by side.

3. A multi-functional numeric keypad according to claim 2, characterized in that, The display screen is located on the left side of the trackball.

4. A multi-functional numeric keypad according to claim 1, characterized in that, The ball seat is provided with a ball groove, and the side wall of the ball groove is provided with a plurality of balls. The track ball is installed in the ball groove and supported by the balls.

5. A multi-functional numeric keypad according to claim 1, characterized in that, The display screen is a touch screen.

6. A multi-functional numeric keypad according to claim 1, characterized in that, The keyboard housing has a card reader slot on its side.

7. A multi-functional numeric keypad according to claim 6, characterized in that, The keyboard housing is also provided with a sealing member on its side, which can close the slot of the card reader.

8. A multi-functional numeric keypad according to claim 6, characterized in that, The side of the keyboard housing is also provided with a latching part that is connected to the main keyboard. The latching part is engaged with the slot of the main keyboard, and the multi-function numeric keypad is wirelessly connected to the main keyboard.

9. A multi-functional numeric keypad according to claim 8, characterized in that, The snap-fit ​​part is made of magnetic material.

10. A multi-functional numeric keypad according to claim 8, characterized in that, The card connector and the card reader slot are located on different sides of the keyboard housing.

Images