CN215734958U

CN215734958U - Keyboard indicator lamp

Info

Publication number: CN215734958U
Application number: CN202121316359.1U
Authority: CN
Inventors: 王唯; 占明明; 江森龙
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-11
Filing date: 2021-06-11
Publication date: 2022-02-01
Anticipated expiration: 2031-06-11

Abstract

A keyboard indicator lamp comprises a lamp body and a connecting circuit, wherein the lamp body is connected with the connecting circuit, the connecting circuit comprises a battery, a charging and discharging circuit, a voltage division circuit and a keyboard circuit, the battery is connected with a current end of the charging and discharging circuit in a bidirectional mode, and a current output end of the charging and discharging circuit is electrically connected with a current input end of the keyboard circuit; the LED lamp is characterized in that a keyboard main control chip and an RF module are arranged in the keyboard circuit, a signal output end of the keyboard circuit is respectively connected with a signal input end of the keyboard main control chip and a signal input end of the RF module, a current input end of the RF module and a current input end of the keyboard main control chip are electrically connected with a battery through a voltage division circuit, a signal output end of the RF module and a signal output end of the keyboard main control chip are connected with a signal input end of a booster circuit through a voltage stabilizing circuit, a current input end of the booster circuit is electrically connected with the battery, a current output end of the booster circuit is connected with a current input end of the lamp body, and a signal input end of the lamp body is connected with a signal output end of the keyboard circuit.

Description

Keyboard indicator lamp

Technical Field

The utility model relates to the field of keyboards, in particular to a keyboard indicating lamp.

Background

With the development of computer technology, devices for remotely controlling a computer host through wireless communication gradually enter the market, and a wireless keyboard is one of the devices. The wireless keyboard as the receiver communicates with the transmitting device inserted into the computer host wirelessly, eliminating the binding of connecting cables. The power supply of the wireless keyboard is generally provided by an additional battery, such as a battery No. 7 or 5, which discharges the battery to supply power to the keyboard circuit and the keyboard indicator light, however, the power supply method needs to continuously purchase and replace the battery, which wastes time and labor in operation, and seriously affects the use effect of the keyboard and the keyboard indicator light.

Disclosure of Invention

The utility model aims to solve the problems and provides a keyboard indicator light which is simple in structure and convenient to use.

In order to achieve the purpose, the technical scheme of the utility model is as follows:

Furthermore, the connection circuit further comprises a charging socket, and the charging socket is electrically connected with the current input end of the charging and discharging circuit.

Further, the lamp body is an LED patch.

Compared with the prior art, the utility model has the advantages and positive effects that:

according to the keyboard circuit, due to the design that the battery and the charging and discharging circuit are arranged on the connecting circuit, the battery can be charged through the charging and discharging circuit, meanwhile, the battery can also supply power to the keyboard circuit through the charging and discharging circuit, the battery does not need to be frequently replaced, the use cost of the keyboard is saved, and the use effect of the keyboard is improved. In addition, the keyboard circuit is internally provided with the keyboard main control chip and is electrically connected with the lamp body through the keyboard main control chip, so that the keyboard main control chip can receive the output signal of the keyboard circuit and control the light-emitting state of the lamp body according to the output signal, the control precision of the keyboard to the keyboard indicator lamp is improved, the structure is simple, convenient and quick, and the using effects of the keyboard and the keyboard indicator lamp are further improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a circuit block diagram of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived from the embodiments of the present invention by a person skilled in the art without any creative effort, should be included in the protection scope of the present invention.

As shown in fig. 1, the present embodiment discloses a keyboard indicator light, which includes a plurality of LED patches and a connection circuit, wherein the LED patches are sequentially connected, the LED patches are connected to the connection circuit, the connection circuit includes a battery, a charging and discharging circuit, a voltage dividing circuit, a keyboard circuit, and a charging interface, the battery is bidirectionally connected to a current end of the charging and discharging circuit, the charging interface is electrically connected to a current input end of the charging and discharging circuit, and a current output end of the charging and discharging circuit is electrically connected to a current input end of the keyboard circuit; the keyboard circuit is internally provided with a keyboard main control chip and an RF module, the signal output end of the keyboard circuit is respectively connected with the signal input ends of the keyboard main control chip and the RF module, the current input ends of the RF module and the keyboard main control chip are electrically connected with a battery through a voltage division circuit, the signal output ends of the RF module and the keyboard main control chip are connected with the signal input end of a booster circuit through a voltage stabilizing circuit, the current input end of the booster circuit is electrically connected with the battery, the current output end of the booster circuit is connected with the current input end of an LED patch, and the signal input end of the LED patch is connected with the signal output end of the keyboard circuit.

The keyboard main control chip identifies keyboard key circuit signals; the keyboard main control chip and the RF wireless module are linked with the battery output signal through a voltage division circuit; the output voltage of the battery is connected with the lamp body through the booster circuit, and the booster circuit is connected with the keyboard main control chip and the RF wireless module through the voltage stabilizing circuit.

The battery used is 3000mah, the charging capability of the charging chip considers the capability of the USB2.0 interface, which may be about 200ma, the main control chip needs to have a pin configuration bit adc analog voltage sampling function, and also needs to have a corresponding pin for controlling the light bar to display electric quantity information, and the light bar is composed of a plurality of LED patches.

According to the keyboard circuit, due to the design that the battery and the charging and discharging circuit are arranged on the connecting circuit, the battery can be charged through the charging and discharging circuit, meanwhile, the battery can also supply power to the keyboard circuit through the charging and discharging circuit, the battery does not need to be frequently replaced, the use cost of the keyboard is saved, and the use effect of the keyboard is improved.

Claims

1. The utility model provides a keyboard indicating lamp, includes lamp body, connecting circuit, and the lamp body is connected with connecting circuit, its characterized in that: the connecting circuit comprises a battery, a charging and discharging circuit, a voltage dividing circuit and a keyboard circuit, wherein the battery is bidirectionally connected with a current end of the charging and discharging circuit, and a current output end of the charging and discharging circuit is electrically connected with a current input end of the keyboard circuit; the LED lamp is characterized in that a keyboard main control chip and an RF module are arranged in the keyboard circuit, a signal output end of the keyboard circuit is respectively connected with a signal input end of the keyboard main control chip and a signal input end of the RF module, a current input end of the RF module and a current input end of the keyboard main control chip are electrically connected with a battery through a voltage division circuit, a signal output end of the RF module and a signal output end of the keyboard main control chip are connected with a signal input end of a booster circuit through a voltage stabilizing circuit, a current input end of the booster circuit is electrically connected with the battery, a current output end of the booster circuit is connected with a current input end of the lamp body, and a signal input end of the lamp body is connected with a signal output end of the keyboard circuit.

2. The keyboard indicator of claim 1, wherein: the connecting circuit further comprises a charging socket, and the charging socket is electrically connected with the current input end of the charging and discharging circuit.

3. The keyboard indicator of claim 2, wherein: the lamp body is an LED patch.