CN216290907U

CN216290907U - Bluetooth module

Info

Publication number: CN216290907U
Application number: CN202122931612.0U
Authority: CN
Inventors: 王贤; 李树青; 陈起丽
Original assignee: Zhilian Wanyi Guangzhou Technology Co ltd
Current assignee: Zhilian Wanyi Guangzhou Technology Co ltd
Priority date: 2021-11-26
Filing date: 2021-11-26
Publication date: 2022-04-12
Anticipated expiration: 2031-11-26

Abstract

The utility model discloses a Bluetooth module, which comprises a PCB (printed circuit board), wherein an emitting part and a chip part are arranged on the PCB from top to bottom, a radio frequency module is arranged on the emitting part, and a chip module and an element module are arranged on the chip part; the chip module comprises an MCU chip, and the MCU chip comprises a classic Bluetooth module and a low-power-consumption BLE Bluetooth module; the element module comprises a plurality of resistors, a plurality of crystal oscillators, a plurality of via holes, a plurality of half-hole welding pads and wiring lines; the radio frequency module comprises an antenna and a connecting terminal, wherein the antenna is connected with the resistor through a connecting terminal wiring line. According to the Bluetooth device, the classic Bluetooth module and the low-power-consumption BLE Bluetooth module are arranged, so that the Bluetooth connection is more stable and efficient, and meanwhile, the energy consumption is reduced.

Description

Bluetooth module

Technical Field

The utility model relates to the technical field of Bluetooth communication, in particular to a Bluetooth module.

Background

The Bluetooth module is a chip basic circuit set integrated with a Bluetooth function and is used for a short-distance 2.4G wireless communication module, and for a terminal user, the Bluetooth module is a semi-finished product and can realize a final product capable of utilizing Bluetooth communication by performing processes of secondary function development, shell packaging and the like on the basis of the module; the bluetooth module application and supporting protocol division is mainly divided into two types: classic bluetooth module and bluetooth low energy module (BLE).

The so-called classic bluetooth module generally refers to a module supporting the bluetooth protocol below 4.0, and is generally used for transmission with a relatively large data volume, such as: higher data volume transmission of voice, music, etc.; the low-power consumption bluetooth module (BLE) is a module supporting the bluetooth protocol 4.0 or higher, also called BLE module, and has the greatest characteristic of reducing cost and power consumption, and is applied to products with higher real-time requirements, such as: smart homes (bluetooth locks, bluetooth lamps), data transmission of sensing devices (sphygmomanometers, temperature sensors), consumer electronics (electronic cigarettes, remote control toys), scanning guns and the like.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a bluetooth module to solve the above problems.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a bluetooth module, includes the PCB board, from the top down is provided with transmitting part and chip portion on the PCB board, be provided with radio frequency module on the transmitting part, chip portion is provided with chip module and component module, chip module respectively with component module electric property and radio frequency module electric connection.

The chip module comprises an MCU chip, and the MCU chip comprises a classic Bluetooth module and a low-power-consumption BLE Bluetooth module.

The element module comprises a plurality of resistors, a plurality of crystal oscillators, a plurality of via holes, a plurality of half-hole welding pads and wiring lines.

The radio frequency module comprises an antenna and a connecting terminal, the antenna is connected with the resistor through a connecting terminal wiring line, the connecting terminal is installed at the chip part, and the connecting terminal is connected with the resistor through the wiring line.

The number of the resistors is not less than 10, the resistors and the capacitors are connected through wiring lines,

the number of the capacitors is not less than 2, and the capacitors are connected with the MCU chip through wiring lines.

The number of the crystal oscillators is not less than 4, and the crystal oscillators are connected with the MCU chip through wiring circuits.

The number of the half-hole welding boxes is not less than 7, and the half-hole welding boxes are connected with the MCU chip, the resistor and the capacitor through wiring circuits.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the utility model, a classic Bluetooth module and a low-power-consumption BLE Bluetooth module are arranged, large data volume transmission is carried out through the classic Bluetooth module, quick real-time transmission is carried out through the low-power-consumption BLE Bluetooth module, external data information is transmitted into an MCU chip through a half-hole welding box and a wiring circuit, the MCU outputs signals after processing the data, and the output signals are filtered by a capacitor and a matched resistor and then are sent to an external receiving terminal through an antenna; because the crystal oscillator is arranged, clock signals are provided for the radio frequency module and the chip module through the crystal oscillator, and all parts can work synchronously;

2. the utility model adopts the dual-module structure of the classic Bluetooth module and the low-power-consumption BLE Bluetooth module, can support various Bluetooth protocols, has wider application range, and simultaneously selects and uses the classic Bluetooth module or the low-power-consumption BLE Bluetooth module according to actual needs, thereby improving the connection efficiency and quality and reducing the energy consumption.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a Bluetooth module according to the present invention;

fig. 2 is a schematic diagram of the module connection according to the present invention.

In the figure: 100. a PCB board; 101. a transmitting section; 102. a chip section; 103. a radio frequency module; 1031. an antenna; 1032. a connection terminal; 104. a chip module; 1041. an MCU chip; 10411. a classic bluetooth module; 10412. a low-power BLE Bluetooth module; 105. an element module; 1051. a resistance; 1052. crystal oscillation; 1053. a via hole; 1054. a half-hole pad; 1055. a wiring line; 1056. and (4) a capacitor.

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 by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-2, the present invention provides a technical solution: the utility model provides a bluetooth module, includes PCB board 100, and PCB board 100 is last from the top down is provided with transmitting part 101 and chip portion 102, is provided with radio frequency module 103 on the transmitting part 101, and chip portion 102 is provided with chip module 104 and component module 105, chip module 104 respectively with radio frequency module 103 and component module 105 electric connection.

The chip module 104 includes an MCU chip 1041, and the MCU chip 1041 includes a classic bluetooth module 10411 and a low-power BLE bluetooth module 10412.

The element module 105 includes a plurality of resistors 1051, a plurality of crystal oscillators 1052, a plurality of vias 1053, a plurality of half-hole pads 1054, wiring lines 1055, and a plurality of capacitors 1056.

The rf module 103 includes an antenna 1031 and a connection terminal 1032, the antenna 1031 is connected to the resistor 1051 through a connection terminal 1032 and a wiring line 1055, the connection terminal 1032 is mounted on the chip section 102, and the connection terminal 1032 is connected to the resistor 1051 through a wiring line 1055.

The number of the resistors 1051 is not less than 10, the resistors 1051 and the capacitors 1056 are connected by wiring lines 1055,

the number of the capacitors 1056 is not less than 2, and the capacitors 1056 are connected to the MCU chip 1041 through the wiring lines 1055.

The number of the crystal oscillators 1052 is not less than 4, and the crystal oscillators 1052 are connected with the MCU chip 1041 through a wiring circuit 1055.

The number of the half-hole welding boxes is not less than 7, and the half-hole welding boxes are connected with the MCU chip 1041, the resistor 1051 and the capacitor 1056 through the wiring circuit 1055.

The working principle is as follows: when the utility model is used, the MCU chip 1041 is arranged, the MCU chip 1041 comprises a classic Bluetooth module 10411 and a low-power-consumption BLE Bluetooth module 10412, large data volume transmission is carried out through the classic Bluetooth module 10411, quick real-time transmission is carried out through the low-power-consumption BLE Bluetooth module 10412, external data information is transmitted into the MCU chip 1041 through a half-hole welding box and a wiring circuit 1055, the MCU outputs signals after processing the data, and the output signals are filtered through a capacitor 1056 and a matched resistor 1051 and then are transmitted to an external receiving terminal through an antenna 1031; due to the crystal oscillator 1052, the clock signal is provided to the rf module 103 and the chip module 104 through the crystal oscillator 1052, so that the operations of the respective parts are kept synchronous.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A Bluetooth module comprising a PCB board (100), characterized in that: the PCB is characterized in that a transmitting part (101) and a chip part (102) are arranged on the PCB (100) from top to bottom, a radio frequency module (103) is arranged on the transmitting part (101), a chip module (104) and an element module (105) are arranged on the chip part (102), and the chip module (104) is electrically connected with the radio frequency module (103) and the element module (105) respectively.

2. The bluetooth module of claim 1, wherein: the chip module (104) comprises an MCU chip (1041), and the MCU chip (1041) comprises a classic Bluetooth module (10411) and a low-power BLE Bluetooth module (10412).

3. The bluetooth module of claim 1, wherein: the element module (105) includes a plurality of resistors (1051), a plurality of crystal oscillators (1052), a plurality of via holes (1053), a plurality of half-hole bonding pads (1054), a wiring line (1055), and a plurality of capacitors (1056).

4. A bluetooth module according to claim 3, characterized in that: the radio frequency module (103) comprises an antenna (1031) and a connection terminal (1032), wherein the connection terminal (1032) is installed on the chip part (102), the connection terminal (1032) is connected with the resistor (1051) through a wiring line (1055), and the antenna (1031) is connected with the resistor (1051) through the connection terminal (1032) and the wiring line (1055).

5. A bluetooth module according to claim 3, characterized in that: the number of the resistors (1051) is not less than 10, and the resistors (1051) and the capacitors (1056) are connected through wiring lines (1055).

6. A bluetooth module according to claim 3, characterized in that: the number of the capacitors (1056) is not less than 2, and the capacitors (1056) are connected with the MCU chip (1041) through a wiring circuit (1055).

7. A bluetooth module according to claim 3, characterized in that: the number of the crystal oscillators (1052) is not less than 4, and the crystal oscillators (1052) are connected with the MCU chip (1041) through a wiring circuit (1055).

8. A bluetooth module according to claim 3, characterized in that: the number of the half-hole welding boxes is not less than 7, and the half-hole welding boxes are connected with the MCU chip (1041), the resistor (1051) and the capacitor (1056) through wiring lines (1055).