WO2018054037A1

WO2018054037A1 - Multifunctional mobile phone back cover and connecting accessory thereof

Info

Publication number: WO2018054037A1
Application number: PCT/CN2017/079733
Authority: WO
Inventors: 李东晃; 童洪洁; 林俊兰
Original assignee: 捷开通讯(深圳)有限公司
Priority date: 2016-09-23
Filing date: 2017-04-07
Publication date: 2018-03-29
Also published as: CN206100096U

Abstract

Provided are a multifunctional mobile phone back cover and connecting accessory thereof, the connecting accessory of the multifunctional mobile phone back cover comprising: a connecting accessory body, the connecting accessory body being provided with a matching structure that may be matched to the shape of the mobile phone back cover; a battery used for powering a circuit in the connecting accessory; a charging management chip; a USB interface; and a first interface used for connecting to an external mobile phone battery back cover. After an idle mobile phone battery back cover is connected to a first interface of the connecting accessory, the idle mobile phone battery back cover may be connected to an external electric device by means of a USB interface of the connecting accessory so that the mobile phone battery back cover may be used as a mobile power supply, thereby improving practicality of the idle mobile phone battery back cover.

Description

Multifunctional mobile phone back cover and connecting accessories thereof

Technical field

The utility model relates to the field of electronic equipment, in particular to a multifunctional mobile phone power back cover and a connecting accessory thereof.

Background technique

At present, some mobile phones are equipped with a multifunctional back cover, which is a product that not only has a back cover function but also has other functions such as charging or speaker. For example, a battery back cover for charging a mobile phone, a speaker back cover with a speaker function, and an LED display back cover with a display function. However, since the user uses a certain multifunctional back cover, other unused back covers are left unused and become impractical; and the existing mobile phone back cover cannot be used independently except for use with the mobile phone.

It can be seen that the prior art still needs to be improved and improved.

Utility model content

In view of the above-mentioned deficiencies of the prior art, the object of the present invention is to provide a multi-function mobile phone back cover connecting accessory, which aims to improve the practicability of the idle multi-function mobile phone back cover.

In order to achieve the above object, the utility model adopts the following technical solutions:

A connection accessory for a back cover of a multi-function mobile phone, comprising: a connection accessory body, the connection accessory body is provided with a matching structure that can be adapted to the shape of the back cover of the mobile phone; and the connection accessory body is provided with:

a battery for powering circuitry within the connection assembly;

Charging management chip;

USB interface;

a first interface for connecting to an external mobile phone battery back cover;

The power input end of the charging management chip and the positive pole of the battery are both connected to the first interface, and the power output end of the charging management chip is connected to the USB interface.

The connecting accessory body for the back cover of the multifunctional mobile phone is further provided with:

Bluetooth module;

Single chip microcomputer

Audio power amplifier

a second interface for connecting to an outer speaker back cover;

The Bluetooth module is connected to an input end of the audio power amplifier through a single chip, and an output end of the audio power amplifier is connected to the second interface.

The connecting accessory for the back cover of the multifunctional mobile phone further includes a third interface for connecting with the external LED display mobile phone back cover.

In the connection fitting for the back cover of the multifunctional mobile phone, the connecting fitting body is further provided with a voltage regulator, and the input end of the voltage regulator is connected to the first interface, and the output end of the voltage regulator Connect the second interface, the third interface, and the positive terminal of the battery.

In the connection accessory for the back cover of the multifunctional mobile phone, the single chip microcomputer is connected to the second interface and the third interface through the I2C bus.

In the connection accessory for the back cover of the multifunctional mobile phone, the second interface includes an Audio terminal, a VBAT terminal and an I2C bus terminal; the Audio terminal is connected to an output end of the audio power amplifier, and the VBAT terminal is connected to the voltage regulator. The output of the device, the I2C bus terminal is connected to the single chip microcomputer.

A multifunctional mobile phone back cover includes a mobile phone battery back cover and the connection accessory for the multifunctional mobile phone back cover; the mobile phone battery back cover is connected to the first interface of the connection accessory.

A multifunctional mobile phone back cover includes a speaker mobile phone back cover and the connecting accessory for the multifunctional mobile phone back cover; the speaker mobile phone back cover is connected to the second interface of the connection accessory.

A multifunctional mobile phone back cover, including an LED display mobile phone back cover, and the multifunctional function a connecting accessory of the back cover of the mobile phone; the LED displays a back cover of the mobile phone connected to the third interface of the connecting accessory.

Beneficial effects:

The utility model provides a multifunctional mobile phone back cover and a connecting accessory thereof, wherein the multifunctional mobile phone back cover connecting accessory comprises a connecting fitting body, and the connecting fitting body is provided with a matching structure which can be adapted to the shape of the back cover of the mobile phone. a battery for powering a circuit in the connection accessory; a charge management chip, a USB interface, and a first interface for connecting to an outer battery back cover; when the idle mobile phone battery back cover and the connection accessory are first After the interface is connected, the USB interface of the connection accessory can be connected to the external power device, so that the back cover of the mobile phone battery can be used as a mobile power source, thereby improving the practicality of the back cover of the idle mobile phone battery.

DRAWINGS

1 is a structural block diagram of a connecting accessory for a back cover of a multifunctional mobile phone provided by the present invention.

detailed description

The utility model provides a multi-function mobile phone back cover connecting accessory. In order to make the object, technical solution and effect of the present invention more clear and clear, the present invention will be further described in detail below with reference to the accompanying drawings. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

Referring to FIG. 1 , the utility model provides a multi-function mobile phone back cover connecting accessory, comprising: a connecting accessory body (not shown), wherein the connecting accessory body is provided with an outer shape adaptable to the back cover of the mobile phone; a mating structure (not shown); on the connecting fitting body is provided with: a battery 10 for powering a circuit in the connecting fitting, a charging management chip 20, a USB interface 30, and for external use The first interface 11 of the mobile phone battery back cover is connected. The power input terminal of the charge management chip 20 and the positive electrode of the battery 10 are both connected to the first interface 40, and the power output end of the charge management chip 20 is connected to the USB interface 30.

Specifically, when the mobile phone battery back cover is connected to the connection accessory through the first interface 11, the mobile phone battery back cover charges the battery 10, and the external connection with the USB interface 30 is also performed by the charging management chip 20. The mobile terminal is charged, so that the originally unused mobile phone battery back cover The function of the mobile charging power source is provided, which improves the practicality. At the same time, the voltage, current, and the like in the charging process are protected by the control of the charging management chip 20, thereby improving the reliability in the charging process. Further, the number of USB interfaces 30 connected to the charging management chip 20 may be two or more, so that charging of a plurality of mobile terminals is simultaneously performed. In this embodiment, the type of the first interface is a telescopic probe connector.

Further, the connection accessory for the back cover of the multi-function mobile phone further includes: a Bluetooth module 40, a single-chip microcomputer (MCU) 50, an audio power amplifier 60, and a second interface 12 for connecting to the back cover of the external speaker handset; The Bluetooth module 40 is connected to the input end of the audio power amplifier 60 through the single chip microcomputer 50. The output end of the audio power amplifier 60 is connected to the second interface 12, and the single chip microcomputer 50 is connected to the positive pole of the battery 10 through the charging management chip 20. The single chip microcomputer 50 is connected to the second interface 12.

Specifically, the speaker mobile phone back cover is connected to the connection accessory through the second interface 12, and the mobile phone battery back cover is connected to the connection accessory through the first interface 11 to provide power from the mobile phone battery back cover. It is also possible to supply power directly through the battery 10 without connecting the back cover of the mobile phone battery. After the connection accessory establishes a Bluetooth connection with an external Bluetooth device, the Bluetooth module 40 receives an audio signal from an external Bluetooth device, and the audio power amplifier 60 amplifies the received audio signal and passes through the second interface. 12 is transmitted to the speaker on the back cover of the speaker mobile phone for playing, thereby realizing the use of the back cover of the speaker mobile phone as a Bluetooth audio, and improving the practicality of the back cover of the speaker mobile phone. In this embodiment, the type of the second interface is a telescopic probe connector.

Further, the connection accessory for the back cover of the multifunctional mobile phone further includes a third interface 13 for connecting with the external LED display mobile phone back cover; the single chip microcomputer 50 is connected to the third interface 13. After the external LED displays that the back cover of the mobile phone is connected through the third interface 13, the single-chip microcomputer 50 is logically processed and sends an instruction to the LED display back cover through the third interface 13, and the LED displays the corresponding back cover of the mobile phone. Content, such as time, text, graphics or other user-defined content, thus improving the practicality of the LED display back cover. In this embodiment, the Bluetooth module 40 is connected to the third interface 13 through a single-chip microcomputer 50 (which can receive a code command), and the Bluetooth module 40 receives a code instruction, and the code command received by the single-chip microcomputer 50 for the Bluetooth module 40 The processing is performed and transmitted to the LED display back cover through the third interface 13, and the LED displays the back cover for corresponding display. In this embodiment, the type of the third interface is a telescopic probe connector.

Further, the connection accessory for the back cover of the multifunctional mobile phone further includes a voltage regulator 80, the input end of the voltage regulator 80 is connected to the first interface 11, and the output end of the voltage regulator 80 is connected to the second The interface 12, the third interface 13, and the anode of the battery 10. By providing the voltage regulator 80, it is ensured that the voltage of the circuit in the connection fitting is stabilized, thereby improving the stability of the operation of the connection fitting.

Further, the first interface 11 includes a PMID terminal and a VBUS terminal, and the PMID terminal is connected to an input end of the voltage regulator 80, and the VBUS terminal is connected to a positive pole of the battery 10. After the mobile phone battery back cover is connected to the first interface, the external mobile terminal connected to the USB interface 30 is stably charged due to the action of the voltage regulator 80.

Further, in the connection accessory for the back cover of the multifunctional mobile phone, the single chip microcomputer 50 is connected to the second interface 12 and the third interface 13 through the I2C bus, so the single chip microcomputer 50 and the speaker connected through the second interface 12 The back cover of the mobile phone or the LED connected through the third interface 13 shows that the communication between the back cover of the mobile phone is simple and efficient.

Further, in the connection accessory for the back cover of the multifunctional mobile phone, the second interface includes an Audio terminal, a VBAT terminal and an I2C bus terminal; the Audio terminal is connected to an output end of the audio power amplifier, the VBAT terminal The output of the voltage regulator is connected to the positive terminal of the battery, and the I2C bus terminal is connected to the single chip microcomputer. The Audio terminal is used to transmit an audio signal, that is, the audio power amplifier 60 outputs the amplified audio signal to the external speaker handset back cover through the Audio terminal. The VBAT terminal is used to transmit a battery voltage and current, that is, the battery 10 transmits a voltage current to the speaker back cover connected to the second interface 12 through the VBAT terminal. The I2C terminal is used to transmit a control signal, that is, the single chip microcomputer 50 sends a control command to the speaker back cover connected to the second interface 12 through the I2C terminal.

The connection accessory further includes a housing and a PCB board disposed in the housing, the first interface 11, the second interface 12, the third interface 13, the voltage regulator 80, the single chip microcomputer 50, the audio power amplifier 60, and the bluetooth The module 40, the USB interface 30, and the charge management chip 20 are all integrated on the PCB.

In summary, the connection accessory for the back cover of the multifunctional mobile phone provided by the utility model can be respectively connected with the existing mobile phone battery back cover, the speaker mobile phone back cover and the LED display mobile phone back cover, so that the above existing The back cover of the multi-function mobile phone has independent practical functions, such as: charging the mobile terminal, as a Bluetooth audio, performing LED display clock, text, graphics and the like, thereby improving the practicality of the idle multi-function mobile phone back cover.

Based on the connection accessory provided by the above embodiment, the utility model further provides a multifunctional mobile phone back cover. In a first embodiment of the multi-function mobile phone back cover, the multi-function mobile phone back cover comprises a mobile phone battery back cover, and the connecting accessory; the connecting accessory is adapted to the shape of the back cover of the mobile phone The mating structure cooperates with the battery back cover of the mobile phone; the back cover of the mobile phone battery is connected to the first interface 11 of the connecting accessory. Specifically, after the external mobile terminal to be charged is connected to the connection accessory through the USB interface 30, the power stored in the back cover of the mobile phone battery passes through the charging management chip and the USB interface 30 to the mobile terminal. Charge it.

In a second embodiment of the multi-function mobile phone back cover, the multifunctional mobile phone back cover includes a speaker mobile phone back cover, and the connecting accessory; the connecting accessory is adapted to the shape of the back cover of the mobile phone The mating mating structure cooperates with the speaker handset back cover, and the speaker handset back cover is coupled to the second interface 12 of the connection accessory. Specifically, after the external Bluetooth device establishes a Bluetooth connection with the back cover of the multifunctional mobile phone, the Bluetooth module 40 of the back cover of the multifunctional mobile phone receives an audio signal from an external Bluetooth device, and the audio of the back cover of the multifunctional mobile phone The power amplifier 60 amplifies the received audio signal and outputs it to the speaker back cover through the second interface 12 for playback. Of course, the multi-function mobile phone back cover may further include a mobile phone battery back cover, and the mobile phone battery back cover is connected to the first interface 11 to provide power for the multifunctional mobile phone back cover.

In a third embodiment of the multi-function mobile phone back cover, the multi-function mobile phone back cover includes an LED display mobile phone back cover, and further includes the connection accessory; the connection accessory passes through the back cover of the mobile phone The shape-adapted mating structure cooperates with the LED display mobile phone back cover, and the LED display phone back cover is connected with the third interface 13 of the connection accessory. Specifically, the user writes a preset program to the single-chip microcomputer 50 according to the content that needs to be displayed (eg, clock, text, pattern, etc.), and the single piece 50 sends an instruction to the LED to display the back cover of the mobile phone. The LED displays the back cover of the mobile phone to display corresponding content according to the received instruction. Of course, the multi-function mobile phone back cover may further include a mobile phone battery back cover, and the mobile phone battery back cover is connected to the first interface 11 to provide power for the multifunctional mobile phone back cover.

It is to be understood that those skilled in the art can make equivalent substitutions or alterations in accordance with the technical solutions of the present invention and the utility model concept, and all such changes or substitutions should belong to the appended claims of the present invention. protected range.

Claims

A connecting accessory for a back cover of a multifunctional mobile phone, comprising: a connecting fitting body, wherein the connecting fitting body is provided with a matching structure that can be adapted to the shape of the back cover of the mobile phone; and the connecting fitting body is provided with:

a battery for powering circuitry within the connection assembly;

Charging management chip;

USB interface;

a first interface for connecting to an external mobile phone battery back cover;

The power input end of the charging management chip and the positive pole of the battery are both connected to the first interface, and the power output end of the charging management chip is connected to the USB interface.
The connection fitting for the back cover of the multifunctional mobile phone according to claim 1, wherein the connection fitting body is further provided with:

Bluetooth module;

Single chip microcomputer

Audio power amplifier

a second interface for connecting to an outer speaker back cover;

The Bluetooth module is connected to an input end of the audio power amplifier through a single chip, and an output end of the audio power amplifier is connected to the second interface.
The connection accessory for a multi-function mobile phone back cover according to claim 2, wherein the connection accessory further comprises a third interface for connecting to the external LED display mobile phone back cover.
The connection fitting for a back cover of a multi-function mobile phone according to claim 3, wherein the third interface is a telescopic probe connector.
A connection fitting for a back cover of a multifunctional mobile phone according to claim 3, wherein said The connecting device body is further provided with a voltage regulator, the input end of the voltage regulator is connected to the first interface, and the output end of the voltage regulator is connected to the second interface, the third interface and the positive pole of the battery.
The connection accessory for a back cover of a multifunctional mobile phone according to claim 3, wherein the single chip microcomputer is connected to the second interface and the third interface through an I2C bus.
The connection accessory for a back cover of a multifunctional mobile phone according to claim 5, wherein said first interface comprises a PMID terminal and a VBUS terminal, said PMID terminal being connected to said regulator input, said VBUS terminal Connected to the positive electrode of the battery.
The connection accessory for a back cover of a multifunctional mobile phone according to claim 5, wherein said second interface comprises an Audio terminal, a VBAT terminal and an I2C bus terminal; said Audio terminal being connected to an output end of the audio power amplifier, The VBAT terminal is connected to the output of the voltage regulator, and the I2C bus terminal is connected to the single chip microcomputer.
A multifunctional mobile phone back cover, comprising a mobile phone battery back cover, further comprising a connection accessory, the connection accessory comprising: a connection accessory body, the connection accessory body being provided with a matching structure adapted to an outer shape of the mobile phone back cover; Providing on the connecting accessory body: a battery for supplying power to the circuit in the connecting accessory, a charging management chip, a USB interface, a first interface for connecting with the back cover of the mobile phone battery; the charging The power input end of the management chip and the positive pole of the battery are connected to the first interface, and the power output end of the charging management chip is connected to the USB interface; the connection accessory body is further provided with: a Bluetooth module, a single chip microcomputer, An audio power amplifier, a second interface for connecting to an outer speaker back cover; the Bluetooth module is connected to an input end of the audio power amplifier via a single chip, the output end of the audio power amplifier is connected to the second interface, and the connection accessory is further The utility model comprises a third interface for connecting with the external LED display mobile phone back cover, and the connecting accessory body is further provided with a voltage regulator The input of regulator is connected to the first interface, the regulator connected to the output of the second interface and the third interface of the positive electrode of the battery, the microcontroller is connected to the third interface and second interface through the I2C bus.
The multifunctional mobile phone back cover according to claim 9, wherein the third interface is a telescopic probe connector.
The multifunctional mobile phone back cover according to claim 9, wherein the first interface comprises a PMID terminal and a VBUS terminal, the PMID terminal is connected to the voltage regulator input, the VBUS terminal and the battery The positive pole is connected.
The multifunctional mobile phone back cover according to claim 9, wherein the second interface comprises an Audio terminal, a VBAT terminal and an I2C bus terminal; the Audio terminal is connected to an output end of the audio power amplifier, and the VBAT terminal is connected to the voltage regulator. The output of the device, the I2C bus terminal is connected to the single chip microcomputer.
A multifunctional mobile phone back cover, comprising a speaker mobile phone back cover or an LED display mobile phone back cover, wherein the connection accessory further comprises: a connection accessory body, wherein the connection accessory body is provided with a front cover shape of the mobile phone An adapted mating structure; a battery for charging the circuit in the connecting accessory, a charging management chip, a USB interface, and a first connection for connecting the battery back cover of the external mobile phone are disposed on the connecting component body The power input end of the charging management chip and the positive pole of the battery are connected to the first interface, and the power output end of the charging management chip is connected to the USB interface; the connecting accessory body is further provided with: a Bluetooth module, a single chip microcomputer, an audio power amplifier, a second interface for connecting with the back cover of the speaker handset; the Bluetooth module is connected to an input end of the audio power amplifier through a single chip, and an output end of the audio power amplifier is connected to the second interface The connection accessory further includes a third interface for connecting with the external LED display mobile phone back cover, the connection accessory The voltage regulator is further disposed, the input end of the voltage regulator is connected to the first interface, the output end of the voltage regulator is connected to the second interface, the third interface and the positive pole of the battery, and the single chip is connected through the I2C bus. a second interface and a third interface, the first interface includes a PMID terminal and a VBUS terminal, the PMID terminal is connected to the voltage regulator input, the VBUS terminal is connected to a positive pole of the battery, and the second interface The utility model comprises an audio terminal, a VBAT terminal and an I2C bus terminal; the audio terminal is connected to an output end of the audio power amplifier, the VBAT terminal is connected to an output end of the voltage regulator, and the I2C bus terminal is connected to the single chip microcomputer.
The multifunctional mobile phone back cover according to claim 13, wherein the third interface is a telescopic probe connector.