CN212322218U - Dual-mode switchable input device - Google Patents
Dual-mode switchable input device Download PDFInfo
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- CN212322218U CN212322218U CN201821775793.4U CN201821775793U CN212322218U CN 212322218 U CN212322218 U CN 212322218U CN 201821775793 U CN201821775793 U CN 201821775793U CN 212322218 U CN212322218 U CN 212322218U
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Abstract
The utility model discloses a changeable formula input device of double mode, including the input device body, be provided with a control circuit, a rechargeable battery group and a USB interface that charges respectively in this input device body, a serial communication port, control circuit includes a host system, electricity and is connected to a pair mode switching module of host system, electricity and is connected to a bluetooth module of host system, electricity and is connected to a 2.4G module of host system and a power management module of electricity connection to host system, bluetooth module and rechargeable battery group respectively. The utility model provides a changeable formula input device of dual mode can realize the free switching of two kinds of mode of bluetooth and 2.4G, as long as operation change over switch switches, just can realize that an input device and many computers and/or many intelligent Mobile terminal establish data connection, realizes a many to one mode promptly, brings very big facility for the use.
Description
Technical Field
The present invention relates to an input device, and more particularly, to a dual-mode switchable input device.
Background
With the continuous development of network information, computers and intelligent mobile terminals have been widely popularized, computers usually require external input devices (such as a keyboard and a mouse) to complete information input, and certainly when the intelligent mobile terminals are required to be used for offices, in order to facilitate quick information input, external devices (such as a keyboard and a mouse) are also required to complete information input.
However, when there are multiple computers and/or multiple intelligent mobile terminals at the same time, the existing keyboard and/or mouse cannot establish data connection with multiple computers and/or multiple intelligent mobile terminals at the same time, i.e. one-to-many working modes, and cannot realize wireless data transmission at the same time, which brings great inconvenience to the use.
Although the bluetooth can implement the one-to-many working mode, when some computers and/or intelligent mobile terminals do not have bluetooth modules inside, that is, do not have a bluetooth wireless data transmission function, the bluetooth wireless data transmission with the keyboard and/or the mouse still cannot be performed, and even the one-to-many working mode cannot be implemented.
SUMMERY OF THE UTILITY MODEL
In view of the above, an object of the present invention is to provide a dual-mode switchable input device, which can realize the free switching between two working modes of bluetooth and 2.4G, and can realize the data connection between an input device and multiple computers and/or multiple intelligent mobile terminals by switching the operation switch, so as to realize the one-to-many working modes, thereby bringing great convenience to the user.
The utility model discloses a reach the technical scheme that above-mentioned purpose adopted and be:
a dual-mode switchable input device comprises an input device body, wherein a control circuit, a rechargeable battery pack and a USB charging interface are respectively arranged in the input device body, and the dual-mode switchable input device is characterized in that the control circuit comprises a main control module, a dual-mode switching module electrically connected to the main control module, a Bluetooth module electrically connected to the main control module, a 2.4G module electrically connected to the main control module and a power management module electrically connected to the main control module, the Bluetooth module and the rechargeable battery pack respectively.
As a further improvement of the present invention, the main control module includes a main control chip U0, a capacitor C1, a capacitor C2, a capacitor C4, a capacitor C5, a polar capacitor C11 and a crystal oscillator Y1, wherein a 15 th pin of the main control chip U0 is connected to a parallel branch of the capacitor C2 and the polar capacitor C11 and a rechargeable battery pack respectively; the 16 th pin of the main control chip U0 is connected to one end of a crystal oscillator Y1 and one end of a capacitor C5 respectively, the other end of the capacitor C5 is connected to one end of a capacitor C4, and the other end of the capacitor C4 is connected to the other end of a crystal oscillator Y1 and the 19 th pin of the main control chip U0 respectively; a capacitor C1 is connected between the 17 th pin and the 18 th pin of the main control chip U0; the 13 th pin of the main control chip U0 is connected to the control terminal of the 2.4G module of the dual mode switching module, and the 14 th pin of the main control chip U0 is connected to the control terminal of the bluetooth module of the dual mode switching module.
As a further improvement of the present invention, the dual mode switching module includes a fet Q1, a resistor R11, a resistor R12 and a switch J, a 1 st pin of the switch J is connected to one end of the resistor R12, the other end of the resistor R12 is connected to one end of a resistor R11 and a gate of the fet Q1, the other end of the resistor R11 is connected to the rechargeable battery pack, a drain of the fet Q1 is connected to an 18 th pin of the main control chip U0, and a source of the fet Q1 is connected to a 3 rd pin of the switch J; the 2 nd pin of the change-over switch J is connected to the 13 th pin of the main control chip U0; the 4 th pin of the switch J is connected to the 14 th pin of the main control chip U0.
As a further improvement of the present invention, the bluetooth module is connected to the main control chip U0 through a connection circuit, the connection circuit includes a bluetooth module pin, a resistor R4 and a resistor R5, wherein the 1 st pin of the bluetooth module pin is connected to one end of the resistor R5, and the other end of the resistor R5 is connected to the 30 th pin of the main control chip U0; the No. 2 pin of the Bluetooth module pin is connected to one end of a resistor R4, and the other end of the resistor R4 is connected to the No. 31 pin of a main control chip U0; the 4 th pin of the Bluetooth module pin is connected to the power management module.
As a further improvement of the utility model, the power management module includes that the electricity is connected to rechargeable battery group and host system's a DC-DC charging unit that steps up respectively, and the electricity is connected to DC-DC and steps up a 3.3V voltage stabilizing unit of charging unit and bluetooth module respectively.
As a further improvement of the present invention, the DC-DC boost charging unit includes a charging management chip U1, a resistor R1, capacitors C6-C10 and an inductor L1, wherein the 1 st pin of the charging management chip U1 is connected to one end of a resistor R1, one end of a capacitor C7 and a USB charging interface respectively, the other end of the resistor R1 is connected to one end of a capacitor C6, and the other end of the capacitor C6 is connected to the other end of a capacitor C7; the 3 rd pin of the charging management chip U1 is connected to a charging battery pack; the 5 th pin of the charging management chip U1 is connected to the 22 th pin of the main control chip U0, the 6 th pin of the charging management chip U1 is connected to the capacitor C10, one end of the inductor L1 and the charging battery pack, the other end of the inductor L1 is connected to the 7 th pin of the charging management chip U1, and the 8 th pin of the charging management chip U1 is connected to the capacitor C8 and the capacitor C9.
As a further improvement of the present invention, the 2 nd pin of the charging management chip U1 is connected to the charging indicator lamp disposed on the input device body.
As a further improvement of the present invention, the 3.3V voltage-stabilizing unit includes a low-dropout linear regulator U2, a polarity capacitor C3, a capacitor C12 and a polarity capacitor C13, wherein the 1 st pin of the low-dropout linear regulator U2 is connected to the 8 th pin of the polarity capacitor C3 anode and the charging management chip U1, and the polarity capacitor C3 cathode is connected to the 2 nd pin of the low-dropout linear regulator U2, the polarity capacitor C13 cathode and one end of the capacitor C12; the 3 rd pin of the low dropout regulator U2 is connected to the positive electrode of the polar capacitor C13, the other end of the capacitor C12 and the bluetooth module, respectively.
As a further improvement of the utility model, the input device body is a keyboard or a mouse.
As a further improvement, the input device body is provided with a plurality of multimedia keys electrically connected with the main control module.
The utility model has the advantages that: through add bluetooth module and 2.4G module simultaneously in input device, and carry out special principle design to host system in the control circuit and dual mode switch module etc. and design, can realize the free switching of two kinds of mode of bluetooth and 2.4G, as long as the change over switch switches over, just can realize that an input device and many computers and/or many intelligent Mobile terminal establish data connection, realize one-to-many mode promptly, bring very big facility for the use, switch over the equipment state through the change over switch, for example, input device can connect the computer, also can connect intelligent Mobile terminals such as cell-phone or flat board simultaneously. For some computers and/or intelligent mobile terminals which do not have Bluetooth modules inside, 2.4G can be used for connecting input equipment through a USB, equipment with the Bluetooth modules can be connected in a matched mode, and the connection state of the connection equipment, the switching of light on the input equipment, the switching of different Bluetooth equipment, the switching of different systems of the connection equipment and the like can be freely switched through a change-over switch. Meanwhile, each module in the control circuit can have stable required voltage, and stable and coordinated work of each module is guaranteed.
The above is an overview of the technical solution of the present invention, and the present invention is further explained with reference to the accompanying drawings and the detailed description.
Drawings
Fig. 1 is a block diagram of the input device of the present invention;
fig. 2 is a schematic view of the external structure of the keyboard of the present invention;
FIG. 3 is a schematic diagram of the external structure of the mouse according to the present invention;
fig. 4 is a schematic diagram of the main control module of the present invention;
fig. 5 is a schematic diagram of the dual mode switching module of the present invention;
fig. 6 is a schematic diagram of the connection circuit of the present invention;
fig. 7 is a schematic diagram of the bluetooth module of the present invention;
fig. 8 is a schematic diagram of the DC-DC boost charging unit of the present invention;
fig. 9 is a schematic diagram of the 3.3V voltage stabilizing unit of the present invention.
Detailed Description
To further illustrate the technical means and effects of the present invention adopted to achieve the intended purpose, the following detailed description of the embodiments of the present invention is provided in conjunction with the accompanying drawings and preferred embodiments.
Referring to fig. 1 to 3, an embodiment of the present invention provides a dual mode switchable input device, including an input device body, specifically, the input device body can be a keyboard 1 or a mouse 2, a control circuit, a rechargeable battery pack and a USB charging interface 10 are respectively disposed in the input device body, the control circuit includes a main control module, a dual mode switching module electrically connected to the main control module, a bluetooth module electrically connected to the main control module, a 2.4G module electrically connected to the main control module, and a power management module electrically connected to the main control module, the bluetooth module and the rechargeable battery pack respectively.
The input device of the embodiment is powered by a rechargeable battery pack (lithium battery) and is charged by using a 5V USB interface, the rechargeable battery pack converts voltage into 5V voltage and 3.3V voltage through a power management module, the 5V voltage supplies power to a main control circuit, and the 3.3V voltage supplies power to a Bluetooth module.
The 2.4G module of this embodiment is a conventional wireless communication module based on a 2.4G wireless technology, and the frequency band of the conventional wireless communication module is between 2.400GHz and 2.4835GHz, and can be used for an input device to implement data transmission with a PC.
The main control module respectively enters USB charging, Bluetooth and 2.4G working modes by identifying the state of the dual-mode switching module, and in the Bluetooth and 2.4G working modes, data transmission between the main control module and devices such as a PC can be carried out by starting the corresponding functions of the Bluetooth module or the 2.4G module, so that the free switching of dual-mode work of the input device is realized. Specifically, data connection between one input device and multiple computers and/or multiple intelligent mobile terminals can be achieved, that is, a one-to-many working mode is achieved, and great convenience is brought to use. For some computers and/or intelligent mobile terminals which do not have the Bluetooth module inside, the 2.4G can be used for connecting input equipment through a USB, and meanwhile, equipment with the Bluetooth module can be connected in a matched mode.
Specifically, as shown in fig. 4, the main control module includes a main control chip U0, a capacitor C1, a capacitor C2, a capacitor C4, a capacitor C5, a polar capacitor C11, and a crystal oscillator Y1, wherein a 15 th pin of the main control chip U0 is respectively connected to a parallel branch of the capacitor C2 and the polar capacitor C11, and a rechargeable battery pack; the 16 th pin of the main control chip U0 is connected to one end of a crystal oscillator Y1 and one end of a capacitor C5 respectively, the other end of the capacitor C5 is connected to one end of a capacitor C4, and the other end of the capacitor C4 is connected to the other end of a crystal oscillator Y1 and the 19 th pin of the main control chip U0 respectively; a capacitor C1 is connected between the 17 th pin and the 18 th pin of the main control chip U0; the 13 th pin of the main control chip U0 is connected to the control terminal of the 2.4G module of the dual mode switching module, and the 14 th pin of the main control chip U0 is connected to the control terminal of the bluetooth module of the dual mode switching module. The main control chip U0 of this embodiment is an MCU controller, and the model number is SX 83099. The master control module can identify the state of the dual-mode switching module, so that the switching selection of the Bluetooth working mode and the 2.4G working mode is realized.
As shown in fig. 5, the dual mode switching module includes a fet Q1, a resistor R11, a resistor R12 and a switch J11, wherein the 1 st pin of the switch J11 is connected to one end of a resistor R12, the other end of the resistor R12 is connected to one end of a resistor R11 and the gate of the fet Q1, the other end of the resistor R11 is connected to the rechargeable battery pack, the drain of the fet Q1 is connected to the 18 th pin of the main control chip U0, and the source of the fet Q1 is connected to the 3 rd pin of the switch J11; the 2 nd pin of the switch J11 is connected to the 13 th pin of the main control chip U0; the 4 th pin of the switch J11 is connected to the 14 th pin of the main control chip U0. By turning the switch J11, the main control chip U0 can recognize the state of the switch J11, so that the main control chip U0 switches the input device to a corresponding operating mode, i.e., the connection device and the connection state thereof can be freely switched by the switch.
As shown in fig. 6, the bluetooth module is connected to the main control chip U0 through a connection circuit, the connection circuit includes a bluetooth module pin, a resistor R4 and a resistor R5, wherein the 1 st pin of the bluetooth module pin is connected to one end of the resistor R5, and the other end of the resistor R5 is connected to the 30 th pin of the main control chip U0; the No. 2 pin of the Bluetooth module pin is connected to one end of a resistor R4, and the other end of the resistor R4 is connected to the No. 31 pin of a main control chip U0; the 4 th pin of the Bluetooth module pin is connected to the power management module. Fig. 7 shows a schematic diagram of a bluetooth module in this embodiment, in a bluetooth working mode, a plurality of devices can be connected, and the connected devices can be freely switched by a knob switch without repeated pairing.
In this embodiment, the power management module includes a DC-DC boost charging unit electrically connected to the rechargeable battery pack and the main control module, respectively, and a 3.3V voltage stabilizing unit electrically connected to the DC-DC boost charging unit and the bluetooth module, respectively.
As shown in fig. 8, the DC-DC boost charging unit includes a charging management chip U1, a resistor R1, capacitors C6-C10, and an inductor L1, wherein the 1 st pin of the charging management chip U1 is respectively connected to one end of a resistor R1, one end of a capacitor C7, and the USB charging interface 10, the other end of the resistor R1 is connected to one end of a capacitor C6, and the other end of the capacitor C6 is connected to the other end of a capacitor C7; the 3 rd pin of the charging management chip U1 is connected to a charging battery pack; the 5 th pin of the charging management chip U1 is connected to the 22 th pin of the main control chip U0, the 6 th pin of the charging management chip U1 is connected to the capacitor C10, one end of the inductor L1 and the charging battery pack, the other end of the inductor L1 is connected to the 7 th pin of the charging management chip U1, and the 8 th pin of the charging management chip U1 is connected to the capacitor C8 and the capacitor C9. The charging management chip U1 of the present embodiment has a model number IP 5303. The 5V voltage accessed by the USB charging interface 10 can directly supply power to the main control module. And the DC-DC boost charging unit can charge the battery pack with 4.2V by the 5V voltage accessed from the USB charging interface 10.
In this embodiment, the 2 nd pin of the charging management chip U1 is connected to a charging indicator lamp disposed on the input device body. When the charging battery pack is charged through the DC-DC boosting charging unit, whether charging is performed or not is prompted by the on and off of the charging indicator lamp.
As shown in fig. 9, the 3.3V voltage stabilizing unit of this embodiment includes a low dropout linear regulator U2, a polar capacitor C3, a capacitor C12, and a polar capacitor C13, wherein a 1 st pin of the low dropout linear regulator U2 is respectively connected to an anode of a polar capacitor C3 and an 8 th pin of a charging management chip U1, and a cathode of the polar capacitor C3 is respectively connected to a 2 nd pin of the low dropout linear regulator U2, a cathode of the polar capacitor C13, and one end of the capacitor C12; the 3 rd pin of the low dropout regulator U2 is connected to the positive electrode of the polar capacitor C13, the other end of the capacitor C12 and the bluetooth module, respectively.
In this embodiment, the input device body is a keyboard 1 or a mouse 2. When the input device body is a keyboard 1, as shown in fig. 2, the switch is a knob switch 11, and by rotating the knob switch 11, data connection between one keyboard 1 and a plurality of computers and/or a plurality of intelligent mobile terminals can be realized, that is, a one-to-many working mode is realized, which brings great convenience to use. When the input device body is a mouse 2, as shown in fig. 3, the change-over switch is a toggle switch 13, and by toggling the toggle switch 13, data connection between one mouse 2 and a plurality of computers and/or a plurality of intelligent mobile terminals can be realized, i.e. a one-to-many working mode is realized, which brings great convenience to use.
As a further modification of the present embodiment, as shown in fig. 2, in the present embodiment, a plurality of multimedia keys 12 electrically connected to the main control module are disposed on the keyboard 1, for example, a Play/Pause shortcut, a PrevTrack shortcut, a NextTrack shortcut, a MUTE shortcut, and the like, so as to facilitate operation and use of the input device.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that other structures obtained by adopting the same or similar technical features as the above embodiments of the present invention are all within the protection scope of the present invention.
Claims (10)
1. A dual-mode switchable input device comprises an input device body, wherein a control circuit, a rechargeable battery pack and a USB charging interface are respectively arranged in the input device body, and the dual-mode switchable input device is characterized in that the control circuit comprises a main control module, a dual-mode switching module electrically connected to the main control module, a Bluetooth module electrically connected to the main control module, a 2.4G module electrically connected to the main control module and a power management module electrically connected to the main control module, the Bluetooth module and the rechargeable battery pack respectively.
2. The dual-mode switchable input device of claim 1, wherein the main control module comprises a main control chip U0, a capacitor C1, a capacitor C2, a capacitor C4, a capacitor C5, a polar capacitor C11 and a crystal oscillator Y1, wherein the 15 th pin of the main control chip U0 is connected to a parallel branch of the capacitor C2 and the polar capacitor C11, and a rechargeable battery pack; the 16 th pin of the main control chip U0 is connected to one end of a crystal oscillator Y1 and one end of a capacitor C5 respectively, the other end of the capacitor C5 is connected to one end of a capacitor C4, and the other end of the capacitor C4 is connected to the other end of a crystal oscillator Y1 and the 19 th pin of the main control chip U0 respectively; a capacitor C1 is connected between the 17 th pin and the 18 th pin of the main control chip U0; the 13 th pin of the main control chip U0 is connected to the control terminal of the 2.4G module of the dual mode switching module, and the 14 th pin of the main control chip U0 is connected to the control terminal of the bluetooth module of the dual mode switching module.
3. The dual-mode switchable input device of claim 2, wherein the dual-mode switching module comprises a fet Q1, a resistor R11, a resistor R12 and a switch J, a 1 st pin of the switch J is connected to one end of the resistor R12, the other end of the resistor R12 is connected to one end of a resistor R11 and a gate of the fet Q1, the other end of the resistor R11 is connected to the rechargeable battery pack, a drain of the fet Q1 is connected to an 18 th pin of the main control chip U0, and a source of the fet Q1 is connected to a 3 rd pin of the switch J; the 2 nd pin of the change-over switch J is connected to the 13 th pin of the main control chip U0; the 4 th pin of the switch J is connected to the 14 th pin of the main control chip U0.
4. The dual mode switchable input device of claim 2, wherein the bluetooth module is connected to the main control chip U0 through a connection circuit, the connection circuit comprises a bluetooth module pin, a resistor R4 and a resistor R5, wherein the 1 st pin of the bluetooth module pin is connected to one end of a resistor R5, and the other end of the resistor R5 is connected to the 30 th pin of the main control chip U0; the No. 2 pin of the Bluetooth module pin is connected to one end of a resistor R4, and the other end of the resistor R4 is connected to the No. 31 pin of a main control chip U0; the 4 th pin of the Bluetooth module pin is connected to the power management module.
5. The dual-mode switchable input device of claim 2, wherein the power management module comprises a DC-DC boost charging unit electrically connected to the rechargeable battery pack and the main control module, respectively, and a 3.3V voltage stabilizing unit electrically connected to the DC-DC boost charging unit and the bluetooth module, respectively.
6. The dual-mode switchable input device of claim 5, wherein the DC-DC boost charging unit comprises a charging management chip U1, a resistor R1, capacitors C6-C10 and an inductor L1, wherein the pin 1 of the charging management chip U1 is respectively connected to one end of a resistor R1, one end of a capacitor C7 and a USB charging interface, the other end of the resistor R1 is connected to one end of a capacitor C6, and the other end of the capacitor C6 is connected to the other end of a capacitor C7; the 3 rd pin of the charging management chip U1 is connected to a charging battery pack; the 5 th pin of the charging management chip U1 is connected to the 22 th pin of the main control chip U0, the 6 th pin of the charging management chip U1 is connected to the capacitor C10, one end of the inductor L1 and the charging battery pack, the other end of the inductor L1 is connected to the 7 th pin of the charging management chip U1, and the 8 th pin of the charging management chip U1 is connected to the capacitor C8 and the capacitor C9.
7. The dual-mode switchable input device of claim 6, wherein pin 2 of the charging management chip U1 is connected to a charging indicator light disposed on the input device body.
8. The dual-mode switchable input device of claim 6, wherein the 3.3V regulator unit comprises a low dropout regulator U2, a polarity capacitor C3, a capacitor C12 and a polarity capacitor C13, wherein the 1 st pin of the low dropout regulator U2 is connected to the positive electrode of a polarity capacitor C3 and the 8 th pin of a charge management chip U1, and the negative electrode of the polarity capacitor C3 is connected to the 2 nd pin of the low dropout regulator U2, the negative electrode of a polarity capacitor C13 and one end of the capacitor C12; the 3 rd pin of the low dropout regulator U2 is connected to the positive electrode of the polar capacitor C13, the other end of the capacitor C12 and the bluetooth module, respectively.
9. The dual-mode switchable input device of claim 1, wherein the input device body is a keyboard or a mouse.
10. The dual mode switchable input device of claim 1, wherein a plurality of multimedia keys electrically connected to a host module are disposed on the input device body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821775793.4U CN212322218U (en) | 2018-10-31 | 2018-10-31 | Dual-mode switchable input device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201821775793.4U CN212322218U (en) | 2018-10-31 | 2018-10-31 | Dual-mode switchable input device |
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| CN212322218U true CN212322218U (en) | 2021-01-08 |
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| CN201821775793.4U Active CN212322218U (en) | 2018-10-31 | 2018-10-31 | Dual-mode switchable input device |
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Address after: 518000 first floor of Xibu factory workshop, building 2, Hesan Industrial Zone, Heyi community, Shajing street, Bao'an District, Shenzhen, Guangdong Province Patentee after: SHENZHEN MICROSTEP ELECTRONIC LTD. Address before: 518000 Building 1, West Industrial Zone, Shajing west ring, Bao'an District, Shenzhen City, Guangdong Province Patentee before: SHENZHEN MICROSTEP ELECTRONIC LTD. |
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