CN217562007U - Keyboard with replaceable extension module - Google Patents

Abstract

The utility model discloses a keyboard with removable extension module belongs to computer-aided equipment's technical field, and this keyboard is applied to the PC end, and this keyboard includes: the keyboard comprises a functional area, a keyboard body and a keyboard body, wherein the functional area is provided with a plurality of keys; the expansion area is arranged in parallel with the functional area, an expansion board and a replaceable module expansion board are arranged in the expansion area, the expansion board and the replaceable module expansion board are in communication connection, and the expansion board and the replaceable module expansion board are in communication connection with the keyboard main body respectively; the replaceable module expansion board is connected with different functional modules in an inserting mode, and the functional modules communicate with the PC end through the expansion board, so that the keyboard can be expanded, and the multifunctional requirement of a user can be met.

Description

Keyboard with replaceable extension module

Technical Field

The utility model belongs to the technical field of computer-aided equipment, particularly, relate to a keyboard with removable extension module.

Background

A computer keyboard is a peripheral input device modeled as a typewriter keyboard that uses an arrangement of buttons or keys to act as mechanical levers or electronic switches. Instead of the earlier punched card and paper tape technology, interaction through a teletypewriter-style keyboard has been the primary input means for computers since the 1970 s, supplemented by computer mice since the 1980 s.

The multifunction key pad provides additional functionality beyond a standard keyboard. Many are programmable, configurable computer keyboards, some of which control multiple PCs, workstations, and other sources of information, typically in a multi-screen work environment. The user has other key functions in addition to the standard functions, and typically can access multiple sources using a single keyboard and mouse.

The multifunction key pad may have a custom keypad, fully programmable functions or soft keys for macro/preset, biometric or smart card readers, track balls, etc. A new generation of multifunction keyboards has a touch screen display that can stream video, control audiovisual media and alerts, execute application inputs, configure a personal desktop environment, etc. The multifunction keyboard may also allow users to share access to PCs and other information sources, with various interfaces (serial, USB, audio, ethernet, etc.) for integrating external devices.

Based on the above, the following defects mainly exist in the existing keyboard:

1. except some customized keyboards, common keyboards mostly have basic functions and do not have expansibility;

2. the existing keyboard can not be updated and upgraded according to the requirements of users, and has poor adaptability to the function selection of the users.

SUMMERY OF THE UTILITY MODEL

In view of this, in order to solve the above-mentioned problem that prior art exists, the utility model aims at providing a keyboard with removable extension module is in order to reach the scalability that can realize the keyboard to satisfy the multi-functional purpose of user's demand.

The utility model discloses the technical scheme who adopts does: a keyboard with a replaceable expansion module, the keyboard being applied to a PC side, the keyboard comprising:

the keyboard comprises a functional area, a keyboard body and a keyboard body, wherein the functional area is provided with the keyboard body, and the keyboard body is provided with a plurality of keys;

the expansion area is arranged in parallel with the functional area, an expansion board and a replaceable module expansion board are arranged in the expansion area, the expansion board is in communication connection with the replaceable module expansion board, and the expansion board is in communication connection with the keyboard main body;

the replaceable module expansion board can be plugged with different functional modules, and the functional modules are communicated with the PC end through the expansion board.

Further, the keyboard includes:

the part of the base corresponding to the functional area is provided with an inclined slope surface;

the keyboard cover is arranged on the base, the expansion area is formed between the keyboard cover and the base, and key holes corresponding to the keys are reserved on the keyboard cover;

compared with the traditional keyboard, the keyboard is optimally distributed by the technology, the basic function of the keyboard is met by the functional area, and the external function expansion function of the keyboard is met by the expansion area.

Furthermore, the base is symmetrically provided with a slotted hole, a cushion block is hinged in the slotted hole through a locking screw, and the cushion block is locked through the locking screw after being rotated so as to adjust the keyboard to an angle meeting the use requirement of a user.

Furthermore, a USB HOST chip is arranged on the expansion board, and the USB HOST chip is electrically connected with an external USB interface and is communicated with the PC end through the external USB interface.

Furthermore, the USB HOST chip is electrically connected with a first USB interface, and is connected with the communication interface of the keyboard main body through the first USB interface so as to realize communication between the keyboard main body and the PC end and meet the function realization of the keyboard main body.

Furthermore, the USB HOST chip is electrically connected with at least one replaceable module plug interface, the replaceable module plug interface is set to be a USB interface and/or a Type-C interface, and the interfaces in different forms can meet plug adaptation.

Further, the keyboard further comprises: the USB HOST chip is electrically connected with a second USB interface, and the second USB interface is electrically connected with the HUB module; the HUB module is provided with a plurality of USB flaring to provide the female mouthful convenience of customers of USB and use on the keyboard, increase the quantity of USB mouth.

Furthermore, the function module is set as a Bluetooth module or an audio module, so that the Bluetooth module can realize wireless communication of a keyboard, and the switching of multi-device connection and the wireless requirements of some users are met; the DAC audio module can provide high-performance audio decoding and power amplification and has two outputs of 3.5 and 4.4 balanced interfaces.

The utility model has the advantages that:

1. adopt the utility model provides a keyboard with removable extension module, it sets up extension portion in the keyboard, extension portion and keyboard main part all are connected to equipment such as PC end, realize through extension portion that the user changes different functional modules according to self demand to satisfy different functional demands, the user can select oneself required functional module to correspond installation and upgrading by oneself, compare traditional keyboard, this keyboard collection is multi-functional in an organic whole, possess characteristics such as upgrading, user optional function far away simultaneously.

Drawings

Fig. 1 is a schematic diagram of an overall structure of a keyboard with a replaceable expansion module according to the present invention;

FIG. 2 is a schematic diagram of the overall structure of the keyboard with the replaceable expansion module according to another view angle;

FIG. 3 is a schematic, partially cross-sectional view of a keyboard with a replaceable expansion module according to the present invention;

FIG. 4 is an enlarged partial schematic view of a keyboard with a replaceable expansion module according to the present invention;

FIG. 5 is a schematic partial circuit diagram of a USB HOST chip in a keyboard with a replaceable expansion module according to the present invention;

fig. 6 is a schematic partial circuit diagram of an external USB interface in the keyboard with a replaceable expansion module according to the present invention;

FIG. 7 is a partial circuit schematic of a first replaceable module plug interface of a keyboard with a replaceable expansion module according to the present invention;

FIG. 8 is a partial schematic circuit diagram of a second replaceable module plug interface of the keyboard with a replaceable expansion module according to the present invention;

fig. 9 is a schematic partial circuit diagram of a first USB interface of a keyboard with a replaceable expansion module according to the present invention;

fig. 10 is a schematic partial circuit diagram of a second USB interface of the keyboard with a replaceable expansion module according to the present invention;

the drawings are labeled as follows:

the keyboard comprises a base 1, a keyboard cover 2, a locking screw 3, a cushion block 4, an external USB interface 5, a first replaceable module plug-in interface 6, a second replaceable module plug-in interface 7, an expansion board 8 and a replaceable module expansion board 9.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar modules or modules having the same or similar functionality throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application. On the contrary, the embodiments of the application include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

Example 1

The present embodiment specifically provides a keyboard with a replaceable extension module, where the keyboard is applied to a PC terminal, and the keyboard is a basic function of the keyboard when used with the PC terminal.

As for the structural design of the keyboard, as shown in fig. 1 and 2, the keyboard includes: base and the keyboard shroud of adorning on the base, the part that the base corresponds the functional area is established to slope face, promptly: the keyboard is provided with an inclined slope surface on one surface facing a user, and the base designed in the mode can realize that the key part of the keyboard is in a slightly inclined state, so that the keyboard can be conveniently knocked by the user. In practical application, as shown in fig. 4, the base is symmetrically provided with slot holes, the slot holes are internally hinged with cushion blocks through locking screws, the cushion blocks are in triangular structures and can rotate in the slot holes, and after the cushion blocks rotate to proper positions, the cushion blocks can be locked through the locking screws to fix the cushion blocks, so that the keyboard can be supported to be in an inclined placing state; otherwise, the cushion block can be reset after the locking screw is screwed, so that the cushion block can stably support the keyboard.

In practical application, as shown in fig. 3, an outer convex shell is arranged at the upper part of the keyboard cover, an expansion area is formed between the outer convex shell and the base, an expansion board and a replaceable module expansion board are arranged in the expansion area, key holes corresponding to the keys are reserved on the keyboard cover, and the keyboard cover and the base are assembled to form the integral keyboard.

A functional area is arranged at one part of the base, a keyboard main body is arranged in the functional area, and a plurality of keys are arranged on the keyboard main body. The functional area herein refers to an area where the basic functions of the keyboard are implemented. The keyboard body here can be understood as part of a prior art keyboard body, which keyboard body comprises a communication interface, which can be understood as: the communication interface is connected with the USB connector, so that the communication interface can be connected to a PC end and can normally use the basic functions of the keyboard.

In order to further expand the adaptive function of the keyboard, an expansion area is further provided, which is arranged side by side with the functional area, in this embodiment, the expansion area is located right above the functional area, as shown in fig. 4, an expansion board and a replaceable module expansion board are arranged in the expansion area, the expansion board and the replaceable module expansion board are in communication connection, and the expansion board and the replaceable module expansion board are in communication connection with the keyboard main body respectively. In practical application, the replaceable module expansion board is inserted with different functional modules, the functional modules are set as Bluetooth modules or DAC audio modules, and the functional modules communicate with the PC end through the expansion board. The Bluetooth module is used for realizing wireless communication of the keyboard, and further meeting the switching of multi-device connection and the wireless requirements of some users; the DAC audio module can provide high-performance audio decoding and power amplification and has two outputs of 3.5 and 4.4 balanced interfaces.

The circuit design of the middle expansion board and the replaceable module expansion board is as follows:

(1) as shown in fig. 5, the expansion board is provided with a USB HOST chip, the model of the USB HOST chip adopts sl2.1a-SOP18, and the USB HOST chip is electrically connected with an external USB interface through which communication with the PC terminal is performed. Specifically, as shown in fig. 6, the DM pin of the external USB interface is connected to the UDM pin of the USB HOST chip, the DP pin of the external USB interface is connected to the UDP pin of the USB HOST chip, the GND pin and the two SHELL pins of the external USB interface are both grounded, the VBUS pin of the external USB interface is grounded through the capacitor C1 and the capacitor C2 connected in parallel, and the VBUS pin of the external USB interface is connected to the VCC5V pin of the USB HOST chip after being connected to the resistor R1 in series, and the VCC5V pin of the USB HOST chip is connected to the ground through the capacitor C13 in series. In practical application, the external USB interface is arranged on the replaceable module expansion board, and the socket of the external USB interface is positioned on the side wall of the keyboard cover.

(2) As shown in fig. 9, the USB HOST chip is electrically connected to the first USB interface, and is connected to the communication interface of the keyboard main body through the first USB interface, so that the keyboard main body communicates with the device at the PC end after passing through the first USB interface, the USB HOST chip, and the external USB interface, so as to implement the basic function of the keyboard main body. Wherein, D of the first USB interface ^- Pin and D ⁺ The pins are respectively connected with a DM3 pin and a DP3 pin of the USB HOST chip, a GND pin and two HAND pins of the first USB interface are grounded, a capacitor C9 and a capacitor C10 are connected in parallel with a VBUS pin of the first USB interface, the other end of the capacitor C9 and the other end of the capacitor C10 which are connected in parallel are grounded, and the VBUS pin of the first USB interface is connected to a VCC5V interface of the USB HOST chip after passing through a series resistor R1.

(3) The USB HOST chip is electrically connected with two replaceable module plug-in interfaces, the two replaceable module plug-in interfaces are respectively set as a USB interface and a Type-C interface, and different interface forms can meet the plug-in communication of functional modules of different models. The user can select an appropriate functional module according to the requirement of the user, for example: the Bluetooth module is selected to realize wireless communication of the keyboard, so that the switching of multi-device connection and the wireless requirements of some users are met; alternatively, the selected DAC audio module may provide high performance audio decoding, power amplification with both 3.5 and 4.4 balanced interface outputs.

Specifically, the two replaceable module plug interfaces are electrically connected as follows:

as shown in fig. 7, a D-pin and a D + pin of the first replaceable module plug-in interface (USB interface) are respectively connected to a DM1 pin and a DP1 pin of the USB HOST chip, a GND pin and two HAND pins of the first replaceable module plug-in interface are grounded, a VBUS pin of the first replaceable module plug-in interface is connected in parallel to a capacitor C3 and a capacitor C4, the other end of the capacitor C3 and the capacitor C4 connected in parallel is grounded, and the VBUS pin of the first replaceable module plug-in interface is connected to a VCC5V interface of the USB HOST chip through a series resistor R1;

as shown in fig. 8, the D-pin and the D + pin of the second replaceable module plug interface (Type-C interface) are connected to the DM2 pin and the DP2 pin of the USB HOST chip, respectively, the GND pin and the two HAND pins of the second replaceable module plug interface are grounded, the VBUS pin of the second replaceable module plug interface is connected in parallel to a capacitor C5 and a capacitor C6, the other end of the capacitor C5 and the capacitor C6 connected in parallel is grounded, and the VBUS pin of the second replaceable module plug interface is connected to the VCC5V interface of the USB HOST chip through a series resistor R1.

Example 2

On the basis of the keyboard with the replaceable expansion module provided in embodiment 1, in this embodiment, in order to further expand the function richness of the keyboard, the keyboard further includes: the USB HOST chip is electrically connected with a second USB interface, and the second USB interface is electrically connected with the HUB module; the HUB module is provided with a plurality of USB flaring openings, and each USB flaring opening is arranged on the side part of the keyboard cover cap respectively to expand the use requirements of users, and can be externally connected with some external equipment through the USB flaring openings, and the USB flaring openings at the position can play the role of a power supply.

As shown in fig. 10, the circuit connection between the second USB interface and the USB HOST chip is as follows: the D-pin and the D + pin of the second USB interface are respectively connected with the DM4 pin and the DP4 pin of the USB HOST chip, the GND pin and the two HAND pins of the second USB interface are grounded, the VBUS pin of the second USB interface is connected with a capacitor C14 and a capacitor C15 in parallel, the other end of the capacitor C14 and the other end of the capacitor C15 which are connected in parallel are grounded, and the VBUS pin of the second USB interface is connected to the VCC5V interface of the USB HOST chip after passing through a series resistor R1.

It should be noted that any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and that the scope of the preferred embodiments of the present application includes additional implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present application.

It should be understood that portions of the present application may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following technologies, which are well known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.

It will be understood by those skilled in the art that all or part of the steps carried out in the method of implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and the program, when executed, includes one or a combination of the steps of the method embodiments.

In addition, functional units in the embodiments of the present application may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.

The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.

While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are exemplary and should not be construed as limiting the present application and that changes, modifications, substitutions and alterations in the above embodiments may be made by those of ordinary skill in the art within the scope of the present application.

Claims (8)

1. A keyboard with a replaceable expansion module, which is applied to a PC side, the keyboard comprising:

the keyboard comprises a functional area, a keyboard body and a keyboard body, wherein the functional area is provided with the keyboard body, and the keyboard body is provided with a plurality of keys;

the expansion area is arranged in parallel with the functional area, an expansion board and a replaceable module expansion board are arranged in the expansion area, the expansion board is in communication connection with the replaceable module expansion board, and the expansion board is in communication connection with the keyboard main body;

the replaceable module expansion board can be plugged with different functional modules, and the functional modules are communicated with the PC end through the expansion board.

2. The keyboard with the replaceable expansion module of claim 1, further comprising:

the part of the base corresponding to the functional area is provided with an inclined slope surface;

and the keyboard cover is arranged on the base, the expansion area is formed between the keyboard cover and the base, and a keyhole corresponding to each key is reserved on the keyboard cover.

3. The keyboard with replaceable expansion module of claim 2, wherein the base has symmetrically disposed slots, and the slots are hinged with pads by locking screws.

4. The keyboard with the replaceable extension module of claim 1, wherein the extension board is provided with a USB HOST chip, and the USB HOST chip is electrically connected with an external USB interface through which the keyboard communicates with the PC terminal.

5. The keyboard with the replaceable expansion module of claim 4, wherein the USB HOST chip is electrically connected with a first USB interface, and is connected with the communication interface of the keyboard body through the first USB interface.

6. The keyboard with the replaceable extension module as claimed in claim 4, wherein the USB HOST chip is electrically connected with at least one replaceable module plug interface, and the replaceable module plug interface is set as a USB interface and/or a Type-C interface.

7. The keyboard with the replaceable expansion module of claim 4, further comprising: the USB HOST chip is electrically connected with a second USB interface, and the second USB interface is electrically connected with the HUB module; the HUB module is provided with a plurality of USB flares.

8. The keyboard with the replaceable expansion module of claim 1, wherein the function module is a bluetooth module or an audio module.

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