CN208401836U

CN208401836U - A kind of wireless 4G communication little module

Info

Publication number: CN208401836U
Application number: CN201820563075.4U
Authority: CN
Inventors: 罗步升
Original assignee: Guangdong Power Grid Co Ltd; Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Current assignee: Guangdong Power Grid Co Ltd; Huizhou Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date: 2018-04-19
Filing date: 2018-04-19
Publication date: 2019-01-18
Anticipated expiration: 2028-04-19

Abstract

The wireless communications products technical field that the utility model relates to use in automatic data logging communicates little module more particularly, to a kind of wireless 4G.Including PCB main board, 4G telecommunication circuit and interface, the 4G telecommunication circuit and interface are arranged on PCB main board, 4G telecommunication circuit is connect with interface, and the outlet socket is set on PCB main board, and the interface includes antennal interface, USB general-purpose interface and contact pin interface.The difficulty that small device uses 4G communication service is reduced, wireless 4G is communicated into interlock circuit modularization.

Description

A kind of wireless 4G communication little module

Technical field

The wireless communications products technical field that the utility model relates to use in automatic data logging, more particularly, to one kind Wireless 4G communicates little module.

Background technique

4G, i.e. fourth generation mobile communication technology.The technology includes two kinds of standards of TD-LTE and FDD-LTE, be collection 3G with WLAN can quickly transmit data, high quality audio, video, image etc. in one.4G can be with the speed of 100Mbps or more Downloading, 25 times faster than current home broadband AD SL (4,000,000), and can satisfy requirement of all users for wireless service.

4G technology is mainly based upon high pass chip platform at present.When using 4G technology in equipment, 4G mould on the market at present Block is mostly the 4G module of Mini-PCIE interface, and Mini-PCIE interface has nearly 52 pins, and volume is larger, and when use needs to occupy Biggish pcb board area, and special pedestal, higher cost need to be matched when the connection of Mini-PCIE interface.

Utility model content

The utility model in order to overcome at least one of the drawbacks of the prior art described above, provides a kind of wireless 4G communication small mould Block, reduces the difficulty that small device uses 4G communication service, and wireless 4G is communicated interlock circuit modularization.

In order to solve the above technical problems, the technical solution adopted in the utility model is: a kind of wireless 4G communication little module, packet Include PCB main board, 4G telecommunication circuit and interface, the 4G telecommunication circuit and interface are arranged on PCB main board, 4G telecommunication circuit with Interface connection, the outlet socket are set on PCB main board, and the interface includes antennal interface, USB general-purpose interface and contact pin Interface.

The contact pin interface of the present apparatus be convex type structure, be arranged on PCB main board, by contact pin interface by PCB main board with Mounting plane separates certain spacing, enables 4G telecommunication circuit to have space to be mounted on PCB main board, the present apparatus is additionally provided with a variety of Interface, wherein USB general-purpose interface can facilitate that user individually debugs this module and functional verification, contact pin interface can Easily it is connected with the main control board of other equipment.

Further, the antennal interface includes primary antenna mouth, emergency antenna mouth and GPS antenna mouth.

Further, the 4G telecommunication circuit includes protection circuit, radio circuit, 4G communication chip, usb communication electricity Road, UART telecommunication circuit, level switch module, clock circuit and SIM card holder, the 4G communication chip, radio circuit, protection Circuit and antennal interface are sequentially connected electrically, and the clock circuit and SIM card holder are electrically connected with 4G communication chip respectively, described USB general-purpose interface is electrically connected by usb communication circuit with 4G communication chip, the contact pin interface, level switch module, UART Telecommunication circuit and 4G communication chip are sequentially connected electrically, and the contact pin interface is electrically connected with usb communication circuit.

Further, the SIM card holder is compatible with 2G, 3G, 4G of domestic movement, connection and the big operator of telecommunications three SIM card.

It further, further include for accessing the power circuit that power supply is the power supply of 4G telecommunication circuit.

Further, the 3.3V Transistor-Transistor Logic level signal of the UART telecommunication circuit outputting standard.

Further, the contact pin socket is the contact pin of 2X4.

Further, the contact pin interface is set on PCB main board end face, and contact pin interface is by PCB main board and mounting plane Separate clipping room away from.

Further, the 4G communication chip is high pass 4G communication chip.

Compared with prior art, beneficial effect is:

1, the present apparatus possesses lesser size, in the case where not influencing 4G traffic rate, by 4G chip and other configurations Circuit integration effectively reduces PCB main board area, cost on a little module, reduces some small devices and uses nothing The difficulty of line 4G communication facilitates wireless 4G and communicates more convenient, wider application；

2, present apparatus circuit design is reasonable, and external interface design is convenient, and multiple functional, size is smaller, greatly reduces small Type equipment uses the technical difficulty and cost of 4G communication service.

Detailed description of the invention

Fig. 1 is the utility model overall structure main view；

Fig. 2 is the utility model overall structure rearview；

Fig. 3 is the utility model overall structure stereogram；

Fig. 4 is the utility model circuit diagram.

Specific embodiment

The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；In order to better illustrate this embodiment, attached Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art, The omitting of some known structures and their instructions in the attached drawings are understandable.Being given for example only property of positional relationship is described in attached drawing Illustrate, should not be understood as the limitation to this patent.

As shown in Figs 1-4, a kind of wireless 4G communicates little module, including PCB main board 13,4G telecommunication circuit and interface, described 4G telecommunication circuit and interface be arranged on PCB main board 13,4G telecommunication circuit is connect with interface, and the outlet socket is set to On PCB main board 13, the interface includes antennal interface 1, USB general-purpose interface 10 and contact pin interface 11.Wherein, 4G telecommunication circuit Including protection circuit 2, radio circuit 3,4G communication chip 4, usb communication circuit 7, UART telecommunication circuit 8, level switch module 9, Clock circuit 5 and SIM card holder 6, the 4G communication chip 4, radio circuit 3, protection circuit 2 and antennal interface 1 are successively electrically connected It connects, the clock circuit 5 and SIM card holder 6 are electrically connected with 4G communication chip 4 respectively, and the USB general-purpose interface 10 passes through Usb communication circuit 7 is electrically connected with 4G communication chip 4, the contact pin interface 11, level switch module 9, UART telecommunication circuit 8 It is sequentially connected electrically with 4G communication chip 4, the contact pin interface 11 is electrically connected with usb communication circuit 7.

The radio frequency interface of 4G communication chip 4 is connected to antenna after one layer of anti-interference protection circuit 2, and protection circuit 2 can Interference signal, electrostatic and the lightning surge etc. on antenna are eliminated, protection 4G communication chip 4 works normally.This module configuration three A antennal interface 1, user can connect according to actual needs.Clock circuit 5 is clock letter needed for 4G communication chip 4 provides operation Number.SIM card holder 6 can be inserted into the 2G/3G/4G SIM card of the big operator of domestic movement/connection/telecommunications three.4G communication chip 4 1.8V UART interface becomes the 3.3TTL level UART interface of standard after level shifting circuit, convenient and small device CPU communication.Contact pin interface 11 is the contact pin of 2X4, including UART, usb signal and 5V power supply, can extremely easily with other equipment Main control board is connected, compared with the 4G module of Mini-PCIE interface, occupy pcb board area want small, and cost want it is low very It is more.This module also configures the USB general-purpose interface 10 an of standard simultaneously, and user is facilitated individually to be debugged to this module and function Verifying, and the 4G module of Mini-PCIE interface has to be connected on bottom plate and could be used with special pedestal.

The utility model can under lesser size, in the case where not influencing 4G traffic rate, by 4G communication chip 4 With other configurations circuit integration on a little module, compared with the 4G module of Mini-PCIE interface, PCB is effectively reduced 13 area of mainboard, cost reduce the difficulty that some small devices are communicated using wireless 4G, facilitate wireless 4G communication more just Prompt, widely application.

Obviously, the above embodiments of the present invention is merely examples for clearly illustrating the present invention, and It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in Within the protection scope of the utility model claims.

Claims

1. a kind of wireless 4G communicates little module, which is characterized in that described including PCB main board (13), 4G telecommunication circuit and interface 4G telecommunication circuit and interface are arranged on PCB main board (13), and 4G telecommunication circuit is connect with interface, and the interface is set to PCB master On plate (13), the interface includes antennal interface (1), USB general-purpose interface (10) and contact pin interface (11).

2. a kind of wireless 4G according to claim 1 communicates little module, which is characterized in that antennal interface (1) packet Include primary antenna mouth (102), emergency antenna mouth (101) and GPS antenna mouth (103).

3. a kind of wireless 4G according to claim 1 communicates little module, which is characterized in that the 4G telecommunication circuit includes Protection circuit (2), radio circuit (3), 4G communication chip (4), usb communication circuit (7), UART telecommunication circuit (8), level conversion Module (9), clock circuit (5) and SIM card holder (6), the 4G communication chip (4), radio circuit (3), protection circuit (2) and Antennal interface (1) is sequentially connected electrically, and the clock circuit (5) and SIM card holder (6) are electrically connected with 4G communication chip (4) respectively, The USB general-purpose interface (10) is electrically connected by usb communication circuit (7) with 4G communication chip (4), the contact pin interface (11), level switch module (9), UART telecommunication circuit (8) and 4G communication chip (4) are sequentially connected electrically, the contact pin interface (11) it is electrically connected with usb communication circuit (7).

4. a kind of wireless 4G according to claim 3 communicates little module, which is characterized in that the SIM card holder (6) is compatible The SIM card of 2G, 3G, 4G of domestic movement, connection and the big operator of telecommunications three.

5. a kind of wireless 4G according to claim 1 communicates little module, which is characterized in that further include being for accessing power supply The power circuit (12) of 4G telecommunication circuit power supply.

6. a kind of wireless 4G according to claim 1 communicates little module, which is characterized in that the UART telecommunication circuit (8) the 3.3V Transistor-Transistor Logic level signal of outputting standard.

7. a kind of wireless 4G according to claim 1 communicates little module, which is characterized in that the contact pin socket is 2X4 Contact pin.

8. a kind of wireless 4G according to claim 1 communicates little module, which is characterized in that the contact pin interface (11) is set In on PCB main board (13) end face, contact pin interface (11) by PCB main board (13) and mounting plane separate clipping room away from.

9. a kind of wireless 4G according to claim 1 communicates little module, which is characterized in that the 4G communication chip (4) For high pass 4G communication chip.