3*3 user-defined function keyboard

Abstract

The utility model relates to the technical field of computers, in particular to a 3 * 3 keyboard with a user-defined function. Comprising a base plate and at least one keycap, a plurality of contact parts are arranged on the base plate in a matrix mode, the keycaps are arranged on the contact parts, the contact parts are electrically connected with the single-chip microcomputer, the keyboard further comprises a backlight module and a timing module, and the keyboard enters different modes by pressing one or more keycaps one time or multiple times or for a certain time. And when the pressed key cap is pressed and / or enters different modes, the second light-emitting module is lighted up or normally lighted up within a set time. The keyboard has the advantages that the keyboard can enter different use modes by pressing different keys, so that an operator can conveniently carry out personalized customization and replacement on key caps of the keyboard; and the light interaction effect of the backlight module is achieved after the key is pressed. More interaction modes and personalized customization can be realized, and the requirements of the user for complex operation and high interactivity are met.

Description

Technical Field

[0001] The utility model relates to the technical field of computers, in particular to a 3×3 custom function keyboard. Background Art

[0002] Matrix keyboard is a membrane keyboard, which has been widely used in various fields of life, such as calculators, remote controllers and independent password input keyboards. The existing matrix keyboard only has its own functions, lacks the function customization of the keyboard, and cannot be interactive and customized. With the progress of the times, a more powerful processing power and programmability are needed to enable the keyboard to perform basic key recognition functions and also realize the needs of complex logic and user-defined functions. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides a 3×3 custom function keyboard, which solves the problems that the existing matrix keyboard lacks keyboard function customization and cannot be interactive and personalized.

[0004] To achieve the above object, the utility model is implemented by the following technical scheme: a 3×3 custom function keyboard, including a chassis and at least one keycap, a plurality of contact parts are arranged in a matrix on the chassis, the keycap is arranged on the contact part, and also includes a single chip microcomputer, the contact part is electrically connected to the single chip microcomputer, and also includes:

[0005] A backlight module, electrically connected to the single chip computer, the backlight module comprising a second light emitting module;

[0006] A timing module, electrically connected to the single chip microcomputer;

[0007] Among them, pressing a single or multiple keycaps once or multiple times or for a certain period of time causes the keyboard to enter different modes, and when the pressed keycap is pressed and / or enters a different mode, the second light emitting module lights up or stays on within a set time.

[0008] Preferably, pressing two different keycaps causes the keyboard to enter / exit corresponding modes, and the modes include a first mode and a second mode.

[0009] Preferably, the second light emitting module is disposed on each contact portion, and each of the second light emitting modules can emit the same or different colors.

[0010] Preferably, the backlight module further comprises a first light emitting module, and the first light emitting module is arranged around the top surface of the chassis to radiate backlight toward the contact portion.

[0011] Preferably, a sink groove is provided on the top surface of the chassis, and the first light-emitting module is provided on the circumferential inner wall surface of the sink groove;

[0012] A reflective element is disposed on the contact portion to reflect the backlight of the first light emitting module into the key cap.

[0013] Preferably, the keycap has a light-transmitting area, and the light-transmitting area includes a light-transmitting portion formed on the keycap.

[0014] Preferably, the light-transmitting portion is arranged at the bottom of the outer side wall of the key cap and / or the top surface of the key cap.

[0015] Preferably, the keycap is connected to the contact portion via a detachable structure;

[0016] The detachable structure comprises a first connecting member fixed on the contact portion and a second connecting member arranged in the key cap, and the first connecting member is cooperatively connected with the second connecting member.

[0017] Preferably, the first connecting member is an insert rod, and the second connecting member is a slot. Beneficial Effects

[0018] By using a 3×3 custom function keyboard provided by the utility model, different use modes can be entered by pressing different keys, which is convenient for the operator to customize and replace the keycaps of the keyboard; and the light interaction effect of the backlight module after pressing the key. More interaction methods and personalized customization can be achieved, meeting the user's needs for complex operations and high interactivity. As an efficient, flexible and low-cost keyboard design method, the 3×3 custom function keyboard can be widely used in various electronic devices and automation control systems. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the keyboard structure of the utility model;

[0020] Figure 2 This is the principle block diagram of the utility model;

[0021] Figure 3 This is a schematic diagram of the key cap structure of the utility model;

[0022] Figure 4 This is the schematic diagram of the keyboard module of the utility model.

[0023] Explanation of symbols in the figure

[0024] 1. keycap, 2. chassis, 3. first light-emitting module, 4. contact part, 5. second light-emitting module, 6. first connecting part, 7. reflective part, 8. single-chip microcomputer, 9. timing module, 10. second connecting part. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. As long as the effect of the utility model can be exerted, various changes can be made to the implementation scheme.

[0026] Reference Figure 1-4 The 3×3 custom function keyboard of this implementation scheme is explained.

[0027] The keyboard includes a chassis 2 and at least one keycap 1, specifically 9 keycaps. In some examples, the keys of the 3×3 matrix keycap 1 are arranged more compactly, which reduces the possibility of mutual interference between keys and improves reliability. At the same time, the keycaps can be changed according to one's own requirements for the designed functions, meeting the basic conditions of custom functions, thereby meeting higher flexibility and personalized needs.

[0028] A plurality of contact parts 4 are provided in a matrix on the chassis 2, which are key circuits, and the key circuits are connected to the STM32 microcontroller through general I / O port pins. In a matrix keyboard, the keys are usually arranged in a matrix form of rows and columns, and the rows and columns are respectively connected to the general I / O port pins of the STM32. When a key is pressed, the corresponding row and column pins will change their levels, and the STM32 identifies the pressed key by scanning the level states of the rows and columns to realize the interface of the key input function.

[0029] The key cap 1 is arranged on the contact portion 4. A universal serial bus hub is also arranged on the chassis 2 and connected to the single chip microcomputer 8.

[0030] There are nine keycaps 1 arranged in a matrix in the chassis 2, made of plastic or metal, with characters or symbols on the surface for indicating the positions of the keys.

[0031] In one embodiment, the keycap 1 is connected to the contact portion 4 via a detachable structure, the detachable structure includes a first connecting member 6 fixed to the contact portion 4 and a second connecting member 10 disposed in the keycap 1, the first connecting member 6 is cooperatively connected with the second connecting member 10. Optionally, the first connecting member 6 is an insert rod, and the second connecting member 10 is a slot.

[0032] It also includes a single-chip microcomputer 8, and the contact part 4 is electrically connected to the single-chip microcomputer 8. The single-chip microcomputer 8 uses the minimum system unit of the single-chip microcomputer, which is the STM32F103C8T6 chip. The STM32F103C8T6 chip adopts the ARM Cortex-M3 core and has a main frequency of up to 72MHz. It is convenient to communicate and control with various sensors and actuators, has high processing power and response speed, can meet the needs of large-capacity data storage, and includes basic circuits and components necessary for the normal operation of the single-chip microcomputer; it also has a voltage stabilizing circuit, which is a power supply circuit that can keep the output voltage basically unchanged when the input grid voltage fluctuates or the load changes.

[0033] The keyboard further comprises a backlight module and a timing module 9. The timing module 9 is a timer, which is electrically connected to the single chip microcomputer 8.

[0034] The backlight module is electrically connected to the single chip computer 8 , and includes a first light emitting module 3 and a second light emitting module 5 ; both the first light emitting module 3 and the second light emitting module 5 are LED lamps.

[0035] During implementation, pressing a single or multiple keycaps 1 once or multiple times or for a certain period of time enables the keyboard to enter different modes, and when the pressed keycap 1 is pressed and / or enters a different mode, the second light emitting module 5 lights up or stays on within a set time.

[0036] In this embodiment, pressing two different keycaps 1 causes the keyboard to enter / exit corresponding modes, and the modes include the first mode and the second mode; for example, pressing the key located in the center and the key on the left side of the key causes the keyboard to enter the first mode; wherein the first mode is the key-changing mode, in which the single-chip microcomputer 8 locks the signal when a single contact portion 4 is pressed when any single keycap 1 is pressed. That is, in this mode, when the operator presses a single keycap 1, the single-chip microcomputer 8 will not make a corresponding response, which facilitates the operator to customize and replace the key 1; pressing the key located in the center and the key on the left side of the key again will correspondingly exit the key-changing mode; for another example, pressing the key located in the center and the key on the right side of the key causes the keyboard to enter the second mode; the second mode is the backlight mode, in which the first light-emitting module 3 works.

[0037] In another embodiment, the second light-emitting module 5 is provided on each contact portion 4, and each second light-emitting module 5 can emit the same or different colors; wherein, when the keyboard enters the corresponding mode, the two second light-emitting modules 5 corresponding to the two different keycaps 1 pressed emit different colors from other second light-emitting modules 5. For example, when entering the first mode, the center key and the key on the left side of the key are pressed, and the second light-emitting modules 5 in the two keys can be red, while the second light-emitting modules 5 in other keys are yellow. This is used to confirm whether the two keys pressed are correct and whether the first mode is entered.

[0038] The first light emitting module 3 is arranged around the top surface of the chassis 2 to radiate backlight to the contact portion 4. It is understandable that the light emitted by the first light emitting module 3 is photographed to the contact portion 4.

[0039] A sink groove is provided on the top surface of the chassis 2. The design of the sink groove enables the first light emitting module 3 to be arranged on the circumferential inner wall surface of the sink groove, so that the light emitted by the first light emitting module 3 is emitted laterally inwardly; a reflector 7 is provided on the contact portion 4 to reflect the light of the first light emitting module 3 into the keycap 1. The reflector 7 is a flexible reflective material, such as a flexible film.

[0040] The key cap 1 has a light-transmitting area, and the light-transmitting area includes a light-transmitting portion formed on the key cap 1. The light-transmitting portion is arranged at the bottom of the outer side wall of the key cap 1 and / or the top surface of the key cap 1.

[0041] In one embodiment, the key cap 1 is divided into an upper part and a lower part, the light-transmitting part is formed in the lower part of the key cap 1, and the upper part is made of a non-light-transmitting material, so that the light emitted by the keyboard will not directly shine upwards on the human eyes.

[0042] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A 3×3 custom function keyboard, comprising a chassis (2) and at least one key cap (1), wherein a plurality of contact portions (4) are arranged in a matrix on the chassis (2), wherein the key cap (1) is arranged on the contact portion (4), and further comprising a single chip microcomputer (8), wherein the contact portion (4) is electrically connected to the single chip microcomputer (8), and wherein: Also includes: A backlight module, electrically connected to the single chip computer (8), the backlight module comprising a second light emitting module (5); A timing module (9) electrically connected to the single chip computer (8); Wherein, pressing one or more of the keycaps (1) once or multiple times or for a certain period of time causes the keyboard to enter different modes, and when the pressed keycap (1) is pressed and / or enters a different mode, the second light emitting module (5) lights up or remains on for a set time.

2. The 3×3 custom function keyboard according to claim 1, characterized in that: Pressing two different key caps (1) causes the keyboard to enter / exit a corresponding mode, wherein the modes include a first mode and a second mode.

3. The 3×3 custom function keyboard according to claim 1, characterized in that: The second light-emitting module (5) is arranged on each contact portion (4), and each of the second light-emitting modules (5) can emit the same or different colors.

4. A 3×3 custom function keyboard according to any one of claims 2 or 3, characterized in that: The backlight module further comprises a first light-emitting module (3), wherein the first light-emitting module (3) is arranged around the top surface of the chassis (2) and radiates backlight towards the contact portion (4).

5. The 3×3 custom function keyboard according to claim 4, characterized in that: The top surface of the base plate (2) is provided with a recessed groove, and the first light-emitting module (3) is arranged on the circumferential inner wall surface of the recessed groove; A reflective element (7) is provided on the contact portion (4) to reflect the backlight of the first light-emitting module (3) into the key cap (1).

6. The 3×3 custom function keyboard according to claim 5, characterized in that: The key cap (1) has a light-transmitting area, and the light-transmitting area comprises a light-transmitting portion formed on the key cap (1).

7. The 3×3 custom function keyboard according to claim 6, characterized in that: The light-transmitting portion is arranged at the bottom of the outer wall of the key cap (1) and / or the top surface of the key cap (1).

8. The 3×3 custom function keyboard according to claim 1, characterized in that: The key cap (1) is connected to the contact portion (4) via a detachable structure; The detachable structure comprises a first connecting member (6) fixed on the contact portion (4) and a second connecting member (10) arranged in the key cap (1), wherein the first connecting member (6) is connected in a cooperative manner with the second connecting member (10).

9. The 3×3 custom function keyboard according to claim 8, characterized in that: The first connecting member (6) is an inserting rod, and the second connecting member (10) is a slot.

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