CN217985108U

CN217985108U - Router circuit

Info

Publication number: CN217985108U
Application number: CN202221826337.4U
Authority: CN
Inventors: 刘诗鑫
Original assignee: Shenzhen Tulin Technology Co ltd
Current assignee: Shenzhen Tulin Technology Co ltd
Priority date: 2022-07-14
Filing date: 2022-07-14
Publication date: 2022-12-06
Anticipated expiration: 2032-07-14

Abstract

The utility model provides a router circuit, including main control chip, overvoltage crowbar, charge control circuit, electric quantity indicating circuit, LCD drive circuit, DCDC step-down circuit, wifi radio frequency circuit, SIM card circuit, charge control circuit is connected with main control chip, electric quantity indicating circuit, overvoltage crowbar, one end electricity of DCDC step-down circuit respectively, the other end of DCDC step-down circuit is connected with one end electricity of Wifi radio frequency circuit, the other end of Wifi radio frequency circuit is connected with the main control chip electricity, SIM card circuit, LCD drive circuit all are connected with the main control chip electricity; the router circuit is low in cost, can solve the problems of three different conditions of users in use, is favorable for safe use of the users, and is convenient for market popularization.

Description

Router circuit

Technical Field

The utility model relates to a router circuit technical field especially relates to a router circuit.

Background

Most of existing 4G portable router products adopt foreign main chips, and 4G signals are converted into wifi signals through modem processing, so that a terminal mobile phone or a computer user can realize the internet surfing function. Due to the limitations of modem processing chips, theoretical download rates of only up to 150Mbps can typically be supported. In order to realize the function of mobile internet surfing, a battery with the power of about 2000mAH can be carried for mobile use, and meanwhile, a plurality of LED indicating lamps are provided for displaying various states in the whole using process.

For the existing 4G portable router products, the majority of the products adopt foreign main chips, and the cost is higher generally; meanwhile, most of the data only support the theoretical download rate of 150 Mbps; the battery capacity is low, generally only about 2000mAH, and the endurance of the whole machine is poor; meanwhile, due to the limitation of a charging chip, a 5V/1A charger is mostly adopted for charging, the charging speed is low, the charging indication is inaccurate, and the risk of burning out a mainboard possibly exists under the condition that a quick charging adapter only supporting high voltage is inserted; and only possess the LED lamp and instruct the electric quantity, there are the experience of user and feel poor and the unable concrete instruction scheduling problem of multiple state.

Therefore, it is necessary to provide a router circuit to solve the problem that the conventional circuit and power supply are not compatible with each other after the replacement of a chip made in the country.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a router circuit is changing circuit and power in the past behind the domestic chip and is difficult to compatible problem.

The utility model discloses a following technical scheme realizes:

the utility model provides a router circuit, including main control chip, overvoltage crowbar, charge control circuit, electric quantity indicating circuit, LCD drive circuit, DCDC step-down circuit, wifi radio frequency circuit, SIM card circuit, charge control circuit respectively with main control chip the electric quantity indicating circuit overvoltage crowbar the one end electricity of DCDC step-down circuit is connected, the other end of DCDC step-down circuit with Wifi radio frequency circuit's one end electricity is connected, wifi radio frequency circuit's the other end with main control chip electricity is connected, SIM card circuit LCD drive circuit all with main control chip electricity is connected.

Furthermore, the Wifi radio frequency circuit includes Wifi antenna, wifi chip, the Wifi chip respectively with the Wifi antenna, the DCDC voltage reduction circuit, the main control chip electricity is connected.

Further, the router circuit further comprises a battery, and the battery is electrically connected with the charging control circuit.

Further, the router circuit further comprises an LCD screen, and the LCD screen is electrically connected with the LCD driving circuit.

Further, the router circuit further comprises a SIM card socket electrically connected to the SIM card circuit.

Furthermore, the router circuit further comprises a key circuit, and the key circuit is electrically connected with the main control chip.

Further, the router circuit further comprises a 4G antenna, and the 4G antenna is electrically connected with the main control chip.

Further, the router circuit further comprises a USB socket for connecting an external power supply, and the USB socket is electrically connected to the overvoltage protection circuit.

The utility model has the advantages that:

the utility model provides a router circuit, including main control chip, overvoltage crowbar, charge control circuit, electric quantity indicating circuit, LCD drive circuit, DCDC step-down circuit, wifi radio frequency circuit, SIM card circuit, charge control circuit is connected with main control chip, electric quantity indicating circuit, overvoltage crowbar, one end electricity of DCDC step-down circuit respectively, the other end of DCDC step-down circuit is connected with one end electricity of Wifi radio frequency circuit, the other end of Wifi radio frequency circuit is connected with main control chip electricity, SIM card circuit, LCD drive circuit all are connected with main control chip electricity; the main control chip is a domestic chip, the original foreign main chip is replaced, under the condition that a charging adapter is not inserted, an SIM card is inserted into the router equipment, a battery is inserted into the router equipment, a set-up key is pressed down, the main control chip of the router equipment directly supplies power through the battery in a bypass mode of a charging control circuit, when the router equipment is connected with a 4G network of an operator, the highest data downloading service of 300Mbps can be supported, meanwhile, the main control chip is connected with a Wifi radio frequency circuit through an SDIO interface, 4G network data are processed through an AP and forwarded to the Wifi chip, a user wireless terminal accesses the Internet through a Wifi signal sent by a WiFi antenna connected with the router equipment, and meanwhile, the user can control an LCD screen through a key circuit to select a display interface and select router equipment state information to be displayed; under the condition of inserting the charging adapter, a SIM card is inserted into the router device, a battery is inserted, a set key is pressed, a main control chip of the router device directly supplies power to the charging control circuit through the battery in a bypass mode of the charging control circuit, meanwhile, the VBUS voltage reaches the charging control circuit through the overvoltage protection circuit, the charging control circuit controls the VBUS voltage and current to charge the battery, and the charging speed can be supported to be 5V/2A 10W at most. At the time, the router equipment can still process the data service, and simultaneously, a user can control a display selection interface of the LCD through a key to select the state information of the router equipment to be displayed; under the condition that a charger adapter is inserted, a SIM card is inserted into the router equipment, a battery is not inserted, a set-up key is pressed down, a main control chip of the router equipment supplies power through VBUS via 4.3V voltage output by an overvoltage protection circuit and a charging control circuit, both the main control chip and a Wifi radio frequency circuit can normally work, meanwhile, a user can normally surf the internet as long as the user is connected with Wifi of the router equipment, and under the condition that a USB is inserted into a battery-free state, a client can surf the internet all the time as long as 5V power supply of the USB is not interrupted, and the problem of endurance does not need to be considered; in conclusion, the router circuit is low in cost, can solve the problems of three different conditions occurring when a user uses the router, is beneficial to safe use of the user, and is convenient for market popularization.

Drawings

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

Detailed Description

In order to more clearly and completely explain the technical scheme of the present invention, the present invention is further explained with reference to the attached drawings.

Please refer to fig. 1, the utility model provides a router circuit, including main control chip 1, overvoltage crowbar 2, charge control circuit 3, electric quantity indicating circuit 4, LCD drive circuit 5, DCDC step-down circuit 6, wifi radio frequency circuit 7, SIM card circuit 8, charge control circuit 3 is connected with main control chip 1, electric quantity indicating circuit 4, overvoltage crowbar 2, one end electricity of DCDC step-down circuit 6 respectively, the other end of DCDC step-down circuit 6 is connected with one end electricity of Wifi radio frequency circuit 7, the other end of Wifi radio frequency circuit 7 is connected with main control chip 1 electricity, SIM card circuit 8, LCD drive circuit 5 are all connected with main control chip 1 electricity; the Wifi radio frequency circuit 7 comprises a WiFi antenna 71 and a WiFi chip 72, wherein the WiFi chip 72 is electrically connected with the WiFi antenna 71, the DCDC voltage reduction circuit 6 and the main control chip 1 respectively; the router circuit further comprises a battery 9, and the battery 9 is electrically connected with the charging control circuit 3; the router circuit further comprises an LCD screen 10, and the LCD screen 10 is electrically connected with the LCD driving circuit 5; the router circuit also comprises an SIM card seat 11, and the SIM card seat 11 is electrically connected with the SIM card circuit 8; the router circuit further comprises a key circuit 12, and the key circuit 12 is electrically connected with the main control chip 1; the router circuit also comprises 4G antennas 13 and a 4G antenna 13 which are electrically connected with the main control chip 1; the router circuit further comprises a USB socket 14 for connecting an external power supply, the USB socket 14 being electrically connected to the overvoltage protection circuit 2.

In the present embodiment:

the main control chip 1 is a domestic chip;

the overvoltage protection circuit 2 is used for preventing the charging control circuit 3 from being damaged due to overlarge power supply voltage input from the outside;

the charge control circuit 3 is used for charging the battery 9;

the electric quantity indicating circuit 4 is used for displaying the electric quantity of the battery 9;

the LCD driving circuit 5 is used for driving an LCD screen;

the DCDC voltage reduction circuit 6 is used for reducing the voltage supplied to the Wifi radio frequency circuit 7;

the Wifi radio frequency circuit 7 is used for transmitting WiFi signals;

the SIM card circuit 8 is used for driving the SIM card seat;

specifically, the main control chip 1 is a domestic chip, which replaces the original foreign main chip, and under the condition that a charging adapter is not plugged, an SIM card is inserted into the router device, a battery 9 is inserted into the SIM card, a power-on key is pressed, the main control chip 1 of the router device directly supplies power through the battery 9 via a bypass mode of the charging control circuit 3, when the router device is connected to a 4G network of an operator, the highest data download service of 300Mbps can be supported, meanwhile, the main control chip 1 is connected with the Wifi radio frequency circuit 7 through an SDIO interface, 4G network data is processed through an AP and is forwarded to the Wifi chip 72, a user wireless terminal is connected to the Wifi antenna 71 in the router device to surf the internet, and meanwhile, the user can control the LCD screen 10 through the key circuit 12 to select a display interface and select router device state information to be displayed; under the condition of inserting the charging adapter, a SIM card is inserted into the router device, the battery 9 is inserted, the power-on key is pressed, the main control chip 1 of the router device directly supplies power through the battery 9 through a bypass mode of the charging control circuit 3, meanwhile, the VBUS voltage reaches the charging control circuit 3 through the overvoltage protection circuit 2, the charging control circuit 3 controls the VBUS voltage and current to charge the battery 9, and the charging speed can be supported to be 5V/2A 10W at most. At the time, the router equipment can still process the data service, and simultaneously, a user can control a display selection interface of the LCD through a key to select the state information of the router equipment to be displayed; under the condition that a charger adapter is inserted, a SIM card is inserted into the router equipment, a battery 9 is not inserted, a set-up key is pressed down, the router equipment main control chip 1 supplies power through VBUS via 4.3V voltage output by the overvoltage protection circuit 2 and the charging control circuit 3, at the moment, both the main control chip 1 and the Wifi radio frequency circuit 7 can normally work, meanwhile, a user can normally surf the internet as long as the user is connected with Wifi of the router equipment, and under the condition that a USB is inserted into a battery-free state 9, the client can always surf the internet as long as 5V power supply of the USB is not interrupted, and the problem of endurance does not need to be considered any more;

in conclusion, the router circuit is low in cost, can solve the problems of three different conditions occurring when a user uses the router, is beneficial to safe use of the user, and is convenient for market popularization.

Of course, the present invention can also have other various embodiments, and based on the embodiments, other embodiments obtained by those skilled in the art without any creative work all belong to the protection scope of the present invention.

Claims

1. The utility model provides a router circuit, its characterized in that, includes main control chip, overvoltage crowbar, charge control circuit, electric quantity indicating circuit, LCD drive circuit, DCDC step-down circuit, wifi radio frequency circuit, SIM card circuit, charge control circuit respectively with main control chip the electric quantity indicating circuit the overvoltage crowbar the one end electricity of DCDC step-down circuit is connected, the other end of DCDC step-down circuit with Wifi radio frequency circuit's one end electricity is connected, wifi radio frequency circuit's the other end with main control chip electricity is connected, SIM card circuit LCD drive circuit all with main control chip electricity is connected.

2. The router circuit according to claim 1, wherein the Wifi rf circuit comprises a Wifi antenna and a Wifi chip, and the Wifi chip is electrically connected to the Wifi antenna, the DCDC voltage-reducing circuit, and the main control chip respectively.

3. The router circuit of claim 1, further comprising a battery electrically connected to the charge control circuit.

4. The router circuit of claim 1, further comprising an LCD screen electrically connected to the LCD driver circuit.

5. The router circuit of claim 1, further comprising a SIM card holder electrically connected with the SIM card circuit.

6. The router circuit of claim 1, further comprising a key circuit electrically connected to the master control chip.

7. The router circuit of claim 1, further comprising a 4G antenna, the 4G antenna electrically connected to the master control chip.

8. The router circuit of claim 1 further comprising a USB socket for connection to an external power source, the USB socket being electrically connected to the overvoltage protection circuit.