WO2020155042A1

WO2020155042A1 - Keyboard

Info

Publication number: WO2020155042A1
Application number: PCT/CN2019/074238
Authority: WO
Inventors: 李双全; 钟文涛; 李书新
Original assignee: 深圳超酷科技有限公司
Priority date: 2019-01-30
Filing date: 2019-01-31
Publication date: 2020-08-06
Also published as: CN109616359A

Abstract

An embodiment of the present application relates to the field of keyboards, and in particular to a keyboard, comprising: one or more key modules, each key module comprising a key cap, a keyboard shaft, an attachment assembly, a key base shell and a sub-circuit board, wherein the key base shell has a top and a bottom, the top is provided with a mounting groove, the keyboard shaft and the sub-circuit board are both mounted inside the mounting groove, the key cap is mounted on the keyboard shaft, the sub-circuit board is connected to the keyboard shaft, and the circuit board is provided with a conductive terminal protruding from the bottom thereof; and a key chassis, comprising a chassis base shell, a conductive panel and a mother circuit board, wherein the conductive panel and the mother circuit board are both mounted on the chassis base shell, the mother circuit board is connected to the conductive panel, and the mother circuit board is used for communicating with a computer, wherein each key module is attached to the conductive panel via the attachment assembly, and the conductive terminal is in contact with the conductive panel, such that the mother circuit board and the sub-circuit board are in communication. One or more key modules of the keyboard are attached to the keyboard chassis, thereby realizing more flexible key adjustment of the keyboard.

Description

A keyboard

Technical field

This application relates to the field of keyboards, in particular to a keyboard.

Background technique

Nowadays, computers have become an indispensable tool for people's life, work, and entertainment. Due to different usage habits and usage environments, the emergence of modular keyboards can meet the individual needs of users.

The modular keyboard is mainly to split the keyboard into several larger sections. For example, the number key section of Jiugongge is convenient for accounting professions. For example, it includes up, down, left, and right game buttons, suitable for game players, etc. .

However, in the process of implementing the present application, the inventor found that the existing modular keyboard still has limitations and cannot be adjusted to a suitable key layout according to the user's hand size and usage habits. Therefore, the existing technology needs to be improved.

Summary of the invention

The main technical problem solved by the embodiments of the present application is to provide a keyboard with more flexible button adjustment.

In order to solve the above technical problems, a technical solution adopted in the implementation of this application is:

A keyboard is provided, including: one or more key modules, each key module includes a key cap, a keyboard shaft, a suction component, a key base shell, and a sub-circuit board. The key base shell has a top and a bottom, and the top is provided with Mounting groove, the keyboard shaft and the sub-circuit board are both installed in the mounting groove, the key cap is mounted on the keyboard shaft, the sub-circuit board is connected to the keyboard shaft, and the circuit board is provided with There are conductive terminals protruding from the bottom; and a key base, including a base base shell, a conductive panel, and a mother circuit board. The conductive panel and the mother circuit board are both mounted on the base base shell, and the mother circuit board is connected to The conductive panel is connected, and the mother circuit board is used to communicate with a computer; wherein, each key module is adsorbed to the conductive panel through the adsorption component, and the conductive terminals are in contact with the conductive panel so that the The mother circuit board communicates with the daughter circuit board.

In some embodiments, a support foot is provided on the side of the button base facing away from the button module;

The supporting leg includes a first adjusting member installed on the base base shell and a second adjusting member installed on the first adjusting member; the first adjusting member is provided with a side facing away from the base base shell A groove, the groove has a central axis, a step structure is provided in the groove, the step structure has a plurality of step surfaces, and the distance from each step surface to the bottom of the groove is different; The two adjusting members are provided with top blocks, the top blocks are used to abut against a stepped surface, and the second adjusting member can rotate relative to the first adjusting member, so that the top blocks abut on different stepped surfaces .

In some embodiments, the base shell is provided with connecting holes on the side facing away from the key module, the number of the connecting holes is 4, and the four connecting holes are distributed in a rectangular shape; the first adjusting member faces One side of the base shell is provided with a connecting column, and the connecting column is matched with the connecting hole.

In some embodiments, the adsorption assembly includes a magnet, and the magnet is located in the installation slot; the keyboard base further includes an adsorption plate, and the adsorption plate is located between the base shell and the conductive panel, The magnet is adsorbed on the adsorption plate; one or more of the magnets are evenly distributed on the edge of the bottom.

In some embodiments, the magnet is in a block or column shape, and three of the magnets are triangularly distributed at the edge of the bottom; or the magnet is in an arc shape, and the two magnets are symmetrically distributed on the On both sides of the bottom; or the magnet is ring-shaped.

In some embodiments, the suction component is a suction cup, the surface of the conductive panel is smooth, and the suction cup is suctioned to the surface of the conductive panel.

In some embodiments, the number of the conductive contacts is multiple, and the multiple conductive contacts are evenly distributed on a circumference; the conductive panel is provided with a plurality of evenly distributed conductive regions, and each conductive Insulating regions separated by regions; a plurality of the conductive regions are all connected to the mother circuit board, a part of the plurality of conductive regions is a positive electrode, and the rest is a negative electrode; a distributed configuration of the plurality of conductive regions When each key module is located at any position and any angle on the conductive panel, at least one of the conductive contacts is located in the conductive area of the positive electrode, and at least another of the conductive contacts is located in the conductive area of the negative electrode Inside.

In some embodiments, each conductive area is a square area, and a plurality of the conductive areas are interlaced; two adjacent conductive areas are different electrodes from each other.

In some embodiments, the mother circuit board is equipped with a main control chip that controls the keyboard; the sub-circuit boards of each key module are equipped with a slave control chip, and the main control chip and the slave control chip of each key module pass through two Linear keyboard bus communication uses the keyboard bus to supply power to the sub-circuit boards of each key module.

In some embodiments, the top is inclined relative to the bottom so that the keycap is not parallel to the conductive panel.

In some embodiments, the mother circuit board communicates with the daughter circuit boards of each key module via a two-wire key bus, the mother circuit board is the master, and the daughter circuit boards of each key module are the slaves. The host communicates with each slave through master-slave communication; each slave has a unique code, and the unique code of each slave is mapped to a short address on the button bus, and the host communicates on the button bus through each slave. The mapped address finds each button module.

In some embodiments, the mother circuit board is provided with a communication interface for connecting with a computer, and the communication interface is a USB Type-c interface.

In some embodiments, the mother circuit board is provided with a communication interface for connecting with a computer, and the communication interface is a Bluetooth interface or a radio frequency interface.

The beneficial effect of the implementation of the present application is that different from the prior art, in the keyboard of the embodiment of the present application, one or more key modules of the keyboard are all adsorbed on the keyboard base, which can realize the key adjustment of the keyboard. For flexibility.

Description of the drawings

One or more embodiments are exemplified by the pictures in the corresponding drawings. These exemplified descriptions do not constitute a limitation on the embodiments. The elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the attached drawings do not constitute a scale limitation.

Figure 1 is a perspective view of a keyboard provided by one of the embodiments of the application;

FIG. 2 is a perspective view of the key module of the keyboard shown in FIG. 1;

Figure 3 is an exploded view of the button module shown in Figure 2;

FIG. 4 is an exploded view of the button module shown in FIG. 2 from another angle;

5 is a perspective view of the key base shell of the key module shown in FIG. 2;

6 is a perspective view of the metal plate of the key module shown in FIG. 2;

FIG. 7 is a schematic diagram of the distribution positions of magnets of the key module shown in FIG. 2;

FIG. 8 is a schematic diagram of a second implementation manner of the distribution positions of the magnets shown in FIG. 7;

FIG. 9 is a schematic diagram of a third implementation manner of the distribution positions of the magnets shown in FIG. 7;

10 is a schematic diagram of a fourth implementation manner of the distribution position of the magnet shown in FIG. 7;

11 is a schematic diagram of a fifth implementation manner of the distribution position of the magnet shown in FIG. 7;

FIG. 12 is a schematic diagram of a sixth implementation manner of the magnet distribution position shown in FIG. 7;

FIG. 13 is a schematic diagram of a seventh implementation manner of the magnet distribution position shown in FIG. 7;

Figure 14 is a perspective view of the keyboard base of the keyboard shown in Figure 1;

Figure 15 is an exploded view of the keyboard base shown in Figure 14;

Figure 16 is a bottom view of the base shell of the keyboard base shown in Figure 14;

Figure 17 is a top view of the keyboard base shown in Figure 14;

18 is a top view of another implementation of the conductive panel of the keyboard base shown in FIG. 17;

19 is a perspective view of the first adjusting member of the keyboard base shown in FIG. 14;

20 is a perspective view of the second adjustment member of the keyboard base shown in FIG. 14;

Figure 21 is a right side view of another implementation of the button module shown in Figure 2;

22 is a circuit structure diagram of the sub-circuit board of the key module shown in FIG. 2;

FIG. 23 is a circuit structure diagram of the mother circuit board of the keyboard base shown in FIG. 14;

Figure 24 is a working flow chart of the keyboard base shown in Figure 14;

Figure 25 is a working flow chart of the button module shown in Figure 2;

FIG. 26 is a schematic diagram of communication between the keyboard shown in FIG. 1 and the host computer and the server.

detailed description

In order to facilitate the understanding of the application, the application will be described in more detail below in conjunction with the drawings and specific implementations. It should be noted that when an element is expressed as being "fixed to" another element, it may be directly on the other element, or there may be one or more elements in between. When an element is said to be "connected" to another element, it can be directly connected to the other element, or there may be one or more intervening elements in between. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this specification are for illustrative purposes only.

Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as commonly understood by those skilled in the technical field of this application. The terms used in this specification in the specification of this application are only for the purpose of describing specific implementations, and are not used to limit the application. The term "and/or" as used in this specification includes any and all combinations of one or more related listed items.

Please refer to FIG. 1, one embodiment of the present application provides a keyboard 100, and the keyboard 100 includes one or more key modules 10 and a key base 20. Wherein, the position, angle and key value of each key module 10 on the key base 20 can be adjusted.

It is worth noting that by setting the position, angle, and key value of each key module 10 on the key base 20 to be adjustable, the keyboard 100 can be adapted to each person's hand shape and usage habits.

Please refer to FIGS. 2 to 4, each key module 10 includes a key base shell 11, a key cap 12, a keyboard shaft 13, a suction component 14 and a sub-circuit board 15. The key cap 12 is installed on the keyboard shaft 13, and the keyboard shaft 13, the suction assembly 14 and the sub-circuit board 15 are all installed in the key base shell 11. Each key module 10 has an independent key value, such as Q, W, E, etc.

Please also refer to FIG. 5, the key base shell 11 is a rectangular parallelepiped as a whole, the key base shell 11 is made of an insulating plastic material, the key base shell 11 has a top 110 and a bottom 112 opposite to each other, the top 110 Both the bottom and the bottom 112 are rectangular, and the top 110 of the key base shell 11 is provided with a mounting slot 114, and the mounting slot 114 is used to receive the keyboard shaft 13, the suction assembly 14 and the sub-circuit board 15. The groove wall of the installation groove 114 is provided with a first buckle structure 1140. The bottom of the mounting groove 114 is provided with a support plate 1142, a magnet mounting position 1144, a screw hole 1146, and a contact avoiding hole 1148. The support plate 1142 is provided on the edge of the magnet mounting position 1144. 1144, the screw hole 1146 and the contact avoiding hole 1148 all pass through the bottom of the mounting groove 114 to the bottom 112 of the key base shell 11.

It is understandable that the key base shell 11 is not limited to being a rectangular parallelepiped. According to actual conditions, the key base shell 11 may also be a regular triangular prism, a regular pentagonal prism, a regular hexagonal prism, etc. Correspondingly, the top 110 And the bottom 112 are respectively regular triangles, regular pentagons, regular hexagons, etc., so that a plurality of the key modules 10 can be seamlessly assembled on the keyboard base 20. Therefore, as long as the key base The shell 11 has a prismatic shape as a whole, and the top 110 and the bottom 112 of the key base shell 11 are both regular polygons.

The keycap 12 may be a conventional mechanical keyboard keycap, and may be made of a fully transparent or semi-transparent plastic. The keycap 12 is provided with a notch on its side facing the bottom of the mounting groove 114. A cross-shaped key shaft slot 120 is used for mounting on the keyboard shaft 13.

The keyboard shaft 13 is located between the keycap 12 and the bottom of the mounting groove 114. The keyboard shaft 13 may be a shaft of a conventional mechanical keyboard, such as a tea shaft, a red shaft, a blue shaft, a black shaft, etc. . The keyboard shaft has an upper part 130 and a lower part 131, the upper part 130 of the keyboard shaft 13 is exposed outside the mounting groove 114, the lower part 131 of the keyboard shaft 13 is received in the mounting groove 114, and the keyboard shaft 13 A raised structure 132 is provided at the junction of the upper portion 130 and the lower portion 131 of the device. The upper part 130 is provided with a pressing shaft 133 on the side facing the keycap 12. By pressing the pressing shaft 133, the keyboard shaft 13 generates a key message. The cross section of the pressing shaft 133 is a cross. The pressing shaft 133 is inserted into the key shaft slot 120. The lower portion 131 is provided with a second buckle structure 134 on a side facing the groove wall of the mounting groove 114. The side of the lower part 131 facing the bottom of the mounting groove 114 is provided with a key shaft positioning post 135 and two key shaft lead-out terminals 136. The key shaft positioning post 135 is used for positioning the keyboard shaft 13, two The key shaft leading-out terminals 136 are commonly used to transmit key information for the keyboard shaft 13. The keyboard shaft 13 is provided with a first light-transmitting hole 138, which penetrates the side of the upper portion 130 facing the keycap 12 and the side of the lower portion 131 facing the bottom of the mounting groove 114 .

The adsorption assembly 14 includes a metal plate 140 and a magnet 142 adsorbed to the metal plate 140.

Please also refer to FIG. 6, the metal plate 140 includes a metal plate body 144 and a support body 146 extending from the edge of the metal plate body 144 away from the bottom of the mounting groove 114. The metal plate main body 144 is located between the keyboard shaft 13 and the bottom of the mounting groove 114, the metal plate main body 144 is arranged parallel to the bottom of the mounting groove 114, and the supporting plate 1142 supports the metal plate The main body 144, the metal plate main body 144 is provided with a key shaft positioning hole 1440, a second light transmission hole 1442 and two lead-out terminal avoiding holes 1444 passing through the metal plate main body 144, the key shaft positioning post 135 and the key shaft positioning hole 1440 In cooperation, the second light-transmitting hole 1442 is aligned with the first light-transmitting hole 138, and the two key shaft leading terminals 136 respectively pass through the two leading terminal avoiding holes 1444. The supporting body 146 is arranged parallel to the bottom of the mounting groove 114, the supporting body 146 is located between the lower portion 130 of the keyboard shaft 13 and the groove wall of the mounting groove 114, and the supporting body 146 faces away from the metal One end of the board main body 144 abuts against the protrusion structure 132 of the keyboard shaft 13, so that the support body 146 supports the keyboard shaft 13. The support body 146 is provided with a buckle structure 1460 penetrating it, and the buckle The position structure 1460 cooperates with the first buckle structure 1140 and the second buckle structure 134 respectively, so that the key base shell 11, the keyboard shaft 13 and the metal plate 140 are firmly installed.

Please refer to FIG. 7 together, the magnet 142 is in a block shape, the magnet 142 is adsorbed on the metal plate main body 144, and the magnet 142 is located between the metal plate 144 and the bottom of the mounting groove 114, so The magnet 142 is placed in the magnet installation position 1144, and the magnet 142 abuts the support plate 142 to limit the magnet 142. The number of the magnets 142 is 4, and the four magnets are distributed at the four corners of the rectangle.

Please refer to FIGS. 8-13. In some other embodiments, as shown in FIG. 8, the number of the magnets 142 is five, the four magnets 142 are distributed in a rectangular shape, and the remaining one magnet 142 is located in a rectangular shape. In the middle; as shown in FIGS. 9 to 11, or the magnet 142 is in a block, column, or strip shape, and the three magnets 142 are triangularly distributed at the edge of the bottom 112; as shown in FIG. 12, Or the magnet 142 has an arc shape, and the two magnets 142 are symmetrically distributed on both sides of the bottom 112; as shown in FIG. 13, or the magnet 142 has a ring shape.

The sub-circuit board 15 is located between the metal plate 144 and the bottom of the mounting groove 114, the sub-circuit board 15 is arranged parallel to the bottom of the mounting groove 114, and the sub-circuit board 15 is placed in the The bottom of the mounting groove 114. The side of the sub-circuit board 15 facing the metal plate 144 is provided with a background light 150 and two shielding cover holders 152, which are specifically connected by welding. The two key shaft leading terminals 136 are respectively matched with the two shielding cover holders 152 so that the keyboard shaft 13 can transmit key information to the sub-circuit board 15. The background light 150 is a light emitting diode, and the background light 150 is aligned with the second light transmission hole 1442, so that the light emitted by the background light 150 sequentially passes through the second light transmission hole 1442 and the first light transmission hole 1442. The light-transmitting hole 138 shows through. The sub-circuit board 15 is provided with a fixing hole 154 penetrating through it, and a bolt can pass through the fixing hole 154 to fit with the screw hole 1146 at the bottom of the mounting groove 114 to fix the sub-circuit board 15于The key base shell 11. The side of the sub-circuit board 15 facing the bottom of the mounting slot 114 is provided with a conductive contact 156, and the conductive contact 156 passes through the contact avoiding hole 1148, so that the conductive contact 156 protrudes from the At the bottom 112 of the key base shell 11, the conductive contacts 156 are used to connect to the keyboard base 20, so that the keyboard base 20 supplies power to the key module 10, and the key module 10 supplies power to the keyboard base 20Transfer key information. The conductive contact 156 is a telescopic probe (Pogo Pin), the number of the conductive contact 156 is 8, and the eight conductive contacts 156 are evenly distributed on a predetermined circle. It can be understood that the number of conductive contacts 156 is not limited to 8. According to actual conditions, the number of conductive contacts 156 can also be 5, 6, 7, etc., as long as the number of conductive contacts 156 The number is 5 or more.

The bottom 112 of the key base shell 11 is also provided with a non-slip pad 1120, specifically the non-slip pad 1120 is embedded in the bottom 112 of the key base 11, so that the non-slip pad 1120 and the key base 11 The bottom 112 is flat, the anti-skid pad 1120 can be made of rubber, the anti-skid pad 1120 closes the screw hole 1146 and the magnet mounting position 1144, the anti-skid pad 1120 is provided with a contact via 1122, and the contact The point via 1122 is aligned with the contact avoiding hole 1148 for the conductive contact 156 to pass through.

Please refer to FIG. 14 and FIG. 15, the keyboard base 20 includes a base shell 21, a conductive panel 22, a mother circuit board 23, an adsorption board 24 and a supporting foot 25. Wherein, the conductive panel 22, the mother circuit board 23, the adsorption board 24 and the supporting legs 25 are all mounted on the base shell 21.

Please also refer to FIG. 16, the base base shell 21 has a relatively flat plate shape as a whole, and can be made of aluminum or aluminum alloy. The base base shell 21 is provided with a receiving groove 210 on the side facing the key module 10 . A side of the base base shell 21 facing away from the key module 10 is provided with connecting holes 212, and the four connecting holes 212 are distributed at four corners of the base base shell 21.

The key module 10 transmits key information to the mother circuit board 23, and the mother circuit board 23 is embedded in the bottom of the accommodating groove 210 and fixed to the base shell 21 by screws.

The adsorption plate 24 is used for the magnet 142 to be adsorbed. The adsorption plate 24 can be made of iron or nickel as long as it can be adsorbed by the magnet 142. The adsorption plate 24 is arranged in the housing The bottom of the groove 210 is fixed to the base shell 21 by a double-sided adhesive 26.

Please also refer to FIG. 17, the conductive panel 22 is located in the accommodating groove 21, and the suction plate 24 is located between the conductive panel 22 and the bottom of the accommodating groove 210, the conductive panel 22 The suction plate 24 is fixed with double-sided adhesive 26. The conductive panel 22 is provided with a plurality of evenly distributed conductive regions 220 on the side facing the key module 10, the plurality of conductive regions 220 are separated by an insulating region 222, and the plurality of conductive regions 220 are connected to the mother circuit The boards 23 are connected, and the mother circuit board 23 is connected to the key module 10 through a plurality of conductive areas 220. The plurality of conductive regions 220 are distributed in rows, the conductive regions 220 in even rows are positive electrodes, and the conductive regions 220 in odd rows are negative electrodes. The width of the conductive region 220 is greater than the width of the insulating region 222 between two adjacent conductive regions 220, and the width of the insulating region 222 between two adjacent conductive regions 220 is greater than the width of the insulating region 222. The diameter value of the conductive contact 156 is to prevent the conductive contact 156 from contacting the conductive regions 220 in the odd and even rows at the same time and short-circuit.

The plurality of conductive regions 220 are distributed and configured such that each key module 10 is located at any position and any angle on the conductive panel 22, and at least one conductive contact 156 is in contact with the odd rows and the even rows. The conductive area 220 of the row, that is, at least one of the conductive contacts 156 respectively contacts the positive electrode and the negative electrode.

Referring to FIG. 18, in some other embodiments, each conductive region 220 is a square region, a plurality of conductive regions 220 are interlaced, and two adjacent conductive regions 220 are mutually different electrodes.

The supporting foot 25 includes a first adjusting member 250 and a second adjusting member 252 mounted on the first adjusting member 250, and the distance between the first adjusting member 250 and the second adjusting member 252 is adjustable.

Referring to FIGS. 15, 16 and 19, the first adjusting member 250 has a cylindrical structure as a whole with a central axis O, and the side of the first adjusting member 250 facing the base shell 21 is provided with a connecting post 2500 The connecting post 2500 is inserted into the connecting hole 212 to realize a detachable connection between the supporting leg 25 and the base shell 21, which can increase or decrease the number of the supporting leg 25 according to the actual situation, for example The supporting feet 25 are installed at the two corners of the short side or the long side of the base base shell 21, for example, all the supporting feet 25 are removed from the base base shell 21, and so on. The side of the first adjusting member 25 facing away from the base shell 21 is provided with a groove 2501, and a step structure 2502 is provided in the groove 2501, and the step structure 2502 is bent around the central axis O. The stepped structure 2502 has a plurality of stepped surfaces 2503, and the height of each stepped surface 2503 to the bottom of the groove 2501 is different, and the stepped surfaces 2503 are arranged from high to low. Every two adjacent stepped surfaces 2503 are connected by a connecting surface 2504, and the connecting surface 2504 and the stepped surface 2503 are at an acute angle, so that the connecting surface 2504 and the connected stepped surface 2503 are formed into a serrated surface .

Please also refer to FIG. 20, the end of the second adjusting member 252 away from the first adjusting member 250 is used for desktop contact, the second adjusting member 252 has a cylindrical structure as a whole, and the second adjusting member 252 sets The top block 2520 is protruding from the second regulating member 252. The top block extends into the groove 2501 and abuts against a serrated surface. The top block 2520 and the The stepped structure 2502 is not easy to slide relatively. By rotating the second adjusting member 252 around the central axis O so that the top block 2520 abuts against different serrated surfaces, the first adjusting member 250 and the first adjusting member 250 can be adjusted. The distance between the two adjusting parts 252.

An elastic member is provided between the second adjusting member 252 and the first adjusting member 250, and the elastic member is used to provide an elastic force that causes the top block 2520 to resist a serrated surface.

In some other embodiments, the first adjusting member 250 and the second adjusting member 252 are adjusted by a threaded structure. The gear adjustment can be realized through the cooperation of the top block 2520 and the stepped structure 2502, which avoids the uneven height of the multiple supporting feet 25 caused when the multiple supporting feet 25 are used.

In some other embodiments, the suction assembly 14 is a suction cup, the suction cup is arranged on the bottom 112 of the key base shell 11, and the conductive panel 22 is a smooth surface facing the key module 10 The suction cup is adsorbed on the conductive panel 22 to realize the fixation of the key module 10.

In some other embodiments, the top 110 is inclined relative to the bottom 112 so that the keycap 12 is not parallel to the conductive panel 22, which facilitates the operation of the key module 10 by the user.

Please refer to Figure 22, the control circuit in the sub-circuit board mainly includes a slave control chip, a key switch, a backlight, and a conductive circuit. In this embodiment, the sub-central control module adopts a small MCU with data processing functions, and the key switch and The slave chip is connected, the key information is input to the slave chip, the background light is connected with the slave chip, and the slave chip controls the background light to provide the background light for the key module. The conductive circuit in this embodiment uses a conductive contact structure As an example, each conductive contact is connected to the positive power line and the negative power line through a diode, the positive power line is connected to the slave control chip, the control chip reads the control signal from the positive power line, and the button information is transmitted through the power line Give the keyboard dock.

Please refer to FIG. 23. The control circuit of the mother circuit board mainly includes a main control chip, a key management module, a communication interface, a power management module, and a connection line. In this embodiment, the key management module is mainly used for configuration, code matching, etc. The main control chip adopts an MCU with data processing function. The key management module is connected to the main control chip, and the configuration signal is input to the main control chip. The communication interface is USB Type-c interface, Micro USB interface, etc., are connected to the computer host through the communication interface for data transmission. Specifically, the main control chip and the computer host can be but not limited to USB Type-c interface, Micro USB wired connection, support Plug and play, it is automatically recognized as a keyboard input device; it can also be connected to the host computer by wireless connection, such as Bluetooth interface, W-Fi, wireless radio frequency interface, etc., and automatically recognized as a keyboard input device. The power management module is connected to the communication interface, and can simultaneously supply power to the mother circuit board and the daughter circuit board through the communication interface. Specifically, the keyboard base can also be a detachable/non-detachable The battery gets power. Each conductive area is a conductive metal strip, and the connection line adopts two or more conductive metal strips. The conductive metal strip can be made of gold PCB gold fingers. The power cord is also connected to the data interface of the main control chip to achieve "one-line connection", namely Realize clock, two-way data transmission and power supply through one line. The conductive panel and the conductive contact are formed by a series of metal strips insulated between odd and even rows to form a PDBB bus, all odd rows are connected to form a G line (Ground) of the bus, and all even rows are connected to form a PD line ( Power and Data). PDBB bus (abbreviation of Power and Data Bidirectional Bus) is a bus technology that uses two physical electrical lines to transmit power and bidirectional data communication at the same time.

The master control chip communicates with the slave control chips of each key module through a two-wire keyboard bus, and power is supplied to the sub-circuit boards of each key module through the keyboard bus.

The communication between the slave control chip and the master control chip is realized through a two-wire bus. The master control chip is the master, the slave control chip of each key module is the slave, and the master control chip is The slave control chip adopts a master-slave communication mode, each slave has a unique ID, and the unique ID is mapped to a short address on the bus. The host obtains the status of the key module by periodically querying the short address, for example, whether the key module is connected and whether key information is generated, so as to realize the discovery of the key module and the detection of the key information.

Please refer to Figure 24. The main control chip can be a STM32 series chip. The specific control process is as follows:

After power on, initialize the port connected to the PC and initialize the button bus;

After the button bus is initialized, query the button modules on the button bus according to the button module query list. If a new button module is connected, report the key value of the new button module to the PC and check whether there is any The button module does not respond to the query, otherwise directly query whether there is a button module that does not respond to the query;

If a button module does not respond to the query, report the unresponsive button module to the PC and refresh the button module query list, otherwise directly refresh the button module query list;

After refreshing the key module query list, wait for the key information, if there is key information, report the key value of the key module and query whether it is time to query the key module, otherwise directly query whether it is time to query the key module;

If it is found that it is time to query the key module, the key module on the key bus will be inquired according to the key module query list, otherwise it will wait for the key information.

Please refer to Figure 25. The slave control chip can be implemented by a small 8-bit microcontroller. The specific control process is as follows:

After power on, wait for the key query on the key bus;

If the button query of the button base is not received after a period of time, turn on the background light or turn off the background light, otherwise wait for the button bus free declaration time;

If the button bus free time has come, send a statement bus competition to the button bus, otherwise wait for the button bus free statement time;

If it sends a statement to the button bus that the bus competition is successful, then exit the competition state, otherwise wait for the button bus free statement moment;

After exiting the competition state, wait for the button information;

If there is key information, trigger a bus signal to the key bus to remind the keyboard base to perform key query, otherwise wait for key information.

Please refer to Figure 26, the specific control process on the PC side is as follows:

Realize the configuration of the key value of the key module, and send the standard key value of the system standard key to the keyboard base and the corresponding key module, and the corresponding key module saves the standard key value. Or, the key module does not save the standard key value, but uses a non-standard key value. When the key information occurs, the keyboard base converts the non-standard key value into a standard key value and reports it to the PC.

Provide firmware upgrades for the keyboard base and key module respectively. The firmware is pushed to the keyboard base for upgrade or forwarded to the key module through the keyboard base for upgrade.

Get the number of key modules through the keyboard base, and then display the same number of key layouts on the software interface. When key information is generated in the relevant key module, the corresponding key in the key layout will be prompted, such as highlighting or dynamic change, etc. The user can click the key in the interface layout to select the correct key value. Further, the position of the cursor on the virtual key in the key layout is obtained, and after the cursor stays for a preset time, an instruction is issued to the keyboard base to light up the backlight of the corresponding key module to inform the user of the virtual key in the key layout Correspondence with the corresponding key module.

The specific control process of the server is as follows:

Provide firmware upgrade service for keyboard base and key module.

Provide PC software upgrade service.

Provides to save the mapping relationship of the user's different key modules to the real key value.

Compared with the prior art, in the keyboard 100 provided by the embodiment of the present application, one or more key modules 10 of the keyboard 100 are all adsorbed on the keyboard base 20, so that the key adjustment of the keyboard 100 can be more flexible.

The above are only implementations of this application, and do not limit the scope of this application. Any equivalent structure or equivalent process transformation made by using the description and drawings of this application, or directly or indirectly applied to other related technologies In the same way, all fields are included in the scope of patent protection of this application.

Claims

A keyboard is characterized in that it comprises:

One or more key modules, each key module includes a key cap, a keyboard shaft, an adsorption component, a key base shell and a sub-circuit board, the key base shell has a top and a bottom, the top is provided with a mounting groove, and the keyboard shaft And the sub-circuit board are installed in the mounting groove, the key cap is installed in the keyboard shaft, the sub-circuit board is connected to the keyboard shaft, and the circuit board is provided with a conductive protruding from the bottom Terminal; and

The key base includes a base base shell, a conductive panel, and a mother circuit board. The conductive panel and the mother circuit board are both mounted on the base base shell, the mother circuit board is connected to the conductive panel, and the mother circuit The board is used to communicate with the computer;

Wherein, each key module is adsorbed to the conductive panel through the adsorption component, and the conductive terminal is in contact with the conductive panel, so that the mother circuit board and the daughter circuit board are connected.
The keyboard according to claim 1, wherein a support foot is provided on the side of the key base that faces away from the key module;

The supporting leg includes a first adjusting member installed on the base shell, and a second adjusting member installed on the first adjusting member;

A side of the first adjusting member facing away from the base shell is provided with a groove, the groove has a central axis, and a step structure is provided in the groove. The step structure has a plurality of step surfaces, each step The distances from the surface to the bottom of the groove are all different;

The second adjusting member is provided with a top block, and the top block is used to abut against a stepped surface. The second adjusting member can rotate relative to the first adjusting member, so that the top block abuts against a different The stepped surface.
The keyboard according to claim 2, wherein a side of the base shell facing away from the key module is provided with connecting holes, the number of the connecting holes is 4, and the four connecting holes are distributed in a rectangular shape;

The side of the first adjusting member facing the base shell is provided with a connecting column, and the connecting column is matched with the connecting hole.
The keyboard according to claim 1, wherein the suction component comprises a magnet, and the magnet is located in the installation groove;

The keyboard base further includes an adsorption plate, the adsorption plate is located between the base shell and the conductive panel, and the magnet is adsorbed to the adsorption plate;

One or more of the magnets are evenly distributed on the edge of the bottom.
The keyboard according to claim 4, wherein the magnet is in a block shape or a column shape, and three of the magnets are triangularly distributed at the edge of the bottom; or

The magnet is arc-shaped, and the two magnets are symmetrically distributed on both sides of the bottom; or

The magnet has a ring shape.
The keyboard according to claim 1, wherein the suction component is a suction cup, the surface of the conductive panel is smooth, and the suction cup is suctioned to the surface of the conductive panel.
The keyboard according to claim 1, wherein the number of the conductive contacts is multiple, and the multiple conductive contacts are evenly distributed on a circle;

The conductive panel is provided with a plurality of evenly distributed conductive regions and insulating regions separating the conductive regions;

The plurality of conductive regions are all connected to the mother circuit board, and a part of the plurality of conductive regions is a positive electrode, and the rest is a negative electrode;

The distribution of the plurality of conductive areas is such that when each key module is located at any position and any angle on the conductive panel, at least one of the conductive contacts is located in the conductive area of the positive electrode, and at least another The conductive contact is located in the conductive area of the negative electrode.
8. The keyboard according to claim 7, wherein each conductive area is a square area, and a plurality of conductive areas are interlaced;

Two adjacent conductive regions are mutually different electrodes.
The keyboard according to any one of claims 1 to 8, wherein the mother circuit board is equipped with a main control chip for controlling the keyboard;

The sub circuit board of each key module is equipped with a slave control chip, and the master control chip communicates with the slave control chip of each key module through a two-wire keyboard bus, and power is supplied to the sub circuit board of each key module through the keyboard bus.
The keyboard according to any one of claims 1 to 8, wherein the top is inclined relative to the bottom, so that the keycap is not parallel to the conductive panel.
The keyboard according to any one of claims 1 to 8, wherein the mother circuit board communicates with the daughter circuit boards of each key module through a two-wire key bus, the mother circuit board is the host, and each The sub-circuit board of the key module is a slave, and the host communicates with each slave through a master-slave communication mode;

Each slave has a unique code, and the unique code of each slave is mapped to a short address on the key bus. The host searches for each key module through the address mapped by each slave on the key bus.
The keyboard according to any one of claims 1 to 8, wherein the mother circuit board is provided with a communication interface for connecting with a computer, and the communication interface is a USB Type-c interface.
The keyboard according to any one of claims 1 to 8, wherein the mother circuit board is provided with a communication interface for connecting with a computer, and the communication interface is a Bluetooth interface or a radio frequency interface.