CN212135911U

CN212135911U - PCBA module of OLED display control

Info

Publication number: CN212135911U
Application number: CN202021027074.1U
Authority: CN
Inventors: 陈黎明
Original assignee: Sichuan Runze Jingwei Information Technology Co ltd
Current assignee: Sichuan Runze Jingwei Information Technology Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2020-12-11
Anticipated expiration: 2030-06-08

Abstract

The utility model relates to a PCBA module of OLED display control belongs to electronic equipment's modularization display structure, including the following device of encapsulation on same PCB board: a plurality of keys, wherein the set function can be triggered by opening and closing different keys; a plurality of status display lights; an OLED display screen; the driving unit is connected with and drives the plurality of keys and the plurality of state display lamps; the EEPROM is used for storing set parameters; the DC/DC conversion unit is connected with the OLED display screen and outputs working voltage, and has the functions of overload, overvoltage and short-circuit protection; the microprocessor is connected with the driving unit through an I2C serial bus, connected with the EEPROM memory and used for controlling the writing and reading of data of the EEPROM memory, connected with the DC/DC conversion unit and used for providing working voltage, and connected with the OLED display screen through an SPI bus and used for controlling the display of the OLED display screen; the OLED display structure is integrated, and interfaces and packaging are unified, so that the OLED display structure has the effects of easiness in replacement, low cost, high integration and the like.

Description

PCBA module of OLED display control

Technical Field

The utility model relates to a PCBA module of OLED display control belongs to electronic equipment's modularization display structure.

Background

The electronic equipment often all needs to show the running state and partial data of internal component in use, and the display often belongs to comparatively accurate device, has fragile characteristics, and current electronic equipment often need consider the compatibility problem that encapsulation and the interface can the structure of display when changing the display, and in addition, display equipment at some equipment uses in some special environment, often unified damage, and the display on the market at present lacks the OLED display module that can unified encapsulation and reliability is high.

Disclosure of Invention

An object of the utility model is to solve above-mentioned problem, show the structure with OLED and integrate to unified interface and encapsulation make it have effects such as easy change, low cost, highly integrated.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model discloses a PCBA module of OLED display control, including the following device of encapsulation on same PCB board:

a plurality of keys, wherein the set function can be triggered by opening and closing different keys;

a plurality of status display lights;

an OLED display screen;

the driving unit is connected with and drives the plurality of keys and the plurality of state display lamps;

the EEPROM is used for storing set parameters;

the DC/DC conversion unit is connected with the OLED display screen and outputs working voltage, and has the functions of overload, overvoltage and short-circuit protection;

and the microprocessor is connected with the driving unit through an I2C serial bus, connected with the EEPROM memory and used for controlling the writing and reading of data of the EEPROM memory, connected with the DC/DC conversion unit and used for providing working voltage, and connected with the OLED display screen through an SPI bus and used for controlling the display of the OLED display screen.

Preferably, the plurality of keys can realize the functions of bit flashing, bit blanking, segment lighting, segment extinguishing, function key and/or continuous click key counting.

Preferably, a power supply chip is further included, and the power supply chip is used for providing required voltage for each device.

Preferably, the OLED display screen, the status display lamp and the keys are arranged on a Top layer of the PCBA module, and the status display lamp and the keys are respectively positioned on the left side and the right side of the OLED display screen.

Preferably, the power chip, microprocessor and EEPROM memory are disposed on the Bottom layer of the PCBA module.

Preferably, the plurality of status indicating lights are a plurality of individual light emitting diodes.

The utility model has the advantages that:

1. the PCBA module in the scheme can unify the interface and the package, and can be quickly maintained and replaced on a plurality of series of equipment;

2. an I2C serial bus interface is adopted between the driving unit and the microprocessor, and only two signal wires are needed, so that I/O interface resources are saved, and the cost is reduced;

3. the microprocessor and the OLED display screen adopt three-wire SPI interface communication, so that I/O interfaces and resources are saved;

4. the PCBA module has the advantages of being light in weight, convenient to install, convenient to maintain and the like.

Drawings

FIG. 1 is a schematic diagram of the construction of a PCBA module;

FIG. 2 is a diagram of a distribution of components of a Top layer of a PCBA module;

fig. 3 is a diagram of a component layout of the Bottom layer of the PCBA module.

Reference numerals: 1-microprocessor, 2-drive unit, 3-EEPROM memory, 4-DC/DC conversion unit, 5-OLED display screen, 6-status display lamp, 7-key, 8-power chip, 9-push-pull connecting seat, 10-bus connecting port.

Detailed Description

Example 1

As shown in FIG. 1, the utility model discloses a PCBA module of OLED display control, including encapsulating a plurality of buttons, a plurality of status display lamp 6, OLED display screen 5, drive unit 2, EEPROM memory 3, DC/DC converting unit 4, microprocessor 1 and power chip 8 on same PCB board.

The keys are distributed in a matrix shape and distributed on a Top layer of the PCB, different keys have the functions of realizing bit flashing, bit blanking, segment lighting, segment extinguishing, function key counting, continuous key hitting counting and the like, and the keys are used for controlling the on-off of the functions.

The status display lamps 6 are distributed on the Top layer of the PCB and used for displaying partial status of the PCBA module.

The OLED display screen 5 is distributed on the Top layer of the PCB, and the OLED display screen 5 realizes the display function; the status display lamp 6 and the keys are respectively positioned at the left side and the right side of the OLED display screen 5.

The driving unit 2 is connected with and drives the plurality of keys and the plurality of state display lamps 6; the key management and driving device is mainly designed, and the microprocessor 1 manages and configures the key management and driving device through an I2C interface.

The EEPROM 3 is distributed on a Bottom layer of the PCB and used for storing set parameters; the EEPROM 3 stores the detailed information of the device, and is convenient for inquiring the current device state, various parameters and other functions, and the microprocessor 1 directly transmits the bus through the I2C to write data to the EEPROM 3.

The DC/DC conversion unit 4 has the protection functions of current limiting, output overvoltage, low-voltage protection, overload, overvoltage, short circuit and the like, and the protection functions are realized by corresponding protection circuits of devices; the DC/DC conversion unit 4 is connected to the OLED display panel 5 and outputs an operating voltage,

and the microprocessor 1 is connected with the driving unit 2 through an I2C serial bus, connected with the EEPROM memory 3 through an I2C serial bus and used for controlling data writing and reading, connected with the DC/DC conversion unit 4 and used for providing working voltage, and connected with the OLED display screen 5 through an SPI bus and used for controlling display.

The power supply chip 8 is used for supplying required voltages to the above devices.

A push-pull connecting seat 9 and a bus connecting port 10 are further arranged on the Bottom layer of the PCBA module, the push-pull connecting seat 9 is connected with the OLED display screen 5, and the bus connecting port 10 comprises an SPI bus, an I2C serial bus and other control lines; the PCBA module is connected to other PCBA boards of the electronic device via the bus connection port 10.

When in use, the PCBA module has a uniform interface and packaging, so that the PCBA module can be quickly maintained and replaced; and adopt I2C serial bus interface between drive unit 2 and the microprocessor 1, only need two signal lines, save the I/O resource, when a certain button is pressed, give button management and state drive unit 2 trigger signal, button management and state drive unit 2 transmits for microprocessor 1 through I2C, microprocessor 1 transmits for OLED display screen 5 through the SPI bus, microprocessor 1 and OLED display screen 5 adopt three-way SPI interface communication, only need the master equipment to send data for the slave unit, further practice thrift the I/O interface, save the resource, realize PCBA module low cost, light in weight, effect such as easy installation maintenance.

The foregoing examples are provided for clarity of illustration only and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are intended to be within the scope of the invention.

Claims

1. The PCBA module for OLED display control is characterized by comprising the following components packaged on the same PCB board:

a plurality of status display lamps (6);

an OLED display screen (5);

the driving unit (2) is connected with the plurality of keys and the plurality of state display lamps (6) and drives the keys and the state display lamps;

an EEPROM memory (3) for storing setting parameters;

the DC/DC conversion unit (4) is connected with the OLED display screen (5) and outputs working voltage, and has the functions of overload, overvoltage and short-circuit protection;

and the microprocessor (1) is connected with the driving unit (2) through an I2C serial bus, connected with the EEPROM (3) and used for controlling the writing and reading of data, connected with the DC/DC conversion unit (4) and used for providing working voltage, and connected with the OLED display screen (5) through an SPI bus and used for controlling the display of the OLED display screen.

2. The PCBA module as recited in claim 1, wherein the plurality of keys are capable of bit blinking, bit blanking, segment lighting, segment blanking, function key and/or continuous click key counting functions.

3. The PCBA module of OLED display control of claim 1, further comprising a power chip (8), the power chip (8) being adapted to provide a desired voltage to the devices; the EEPROM memory (3) is connected with the microprocessor (1) through an I2C serial bus.

4. The PCBA module as recited in claim 3, wherein the OLED display screen (5), the status display lamp (6) and the key are disposed on the Top layer of the PCBA module, and the status display lamp (6) and the key are respectively disposed on the left and right sides of the OLED display screen (5).

5. PCBA module as claimed in claim 4, characterised in that the power supply chip (8), microprocessor (1) and EEPROM memory (3) are provided on the Bottom layer of the PCBA module.

6. A PCBA module for OLED display control as claimed in claim 3, wherein the status display lights (6) are a plurality of individual light emitting diodes.