Power bank apparatus with speaker

• US 8,446,126 B2
• Filed: 08/04/2010
• Issued: 05/21/2013
• Est. Priority Date: 08/04/2010
• Status: Active Grant

• Current Assignee: Cooler Master Development Corporation
• Original Assignee: Cooler Master Co. Ltd.
• Inventors: Cheng, Yu-Hung
• Primary Examiner(s): Fantu, Yalkew
• Application Number:
  US12/849,910
• Publication Number:
  US 20120032531A1
• Time in Patent Office: 1,021 Days
• Field of Search: 320/116
• US Class Current: 320/116
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H04R 1/028 associated with devices performing functions other than acoustics, e.g. electric candles
• CPC Class Codes: H04R 2205/021 Aspects relating to docking-station type assemblies to obtain an acoustical effect, e.g. the type of connection to external loudspeakers or housings, frequency improvement

Abstract

A power bank apparatus with speaker combines the function of power bank and the function of speaker. The power bank apparatus not only charges the portable electronic apparatuses but also supplies power to the internal speaker. The voice or music of the portable electronic apparatus is amplified by the speaker of the power bank apparatus to improve the quality of the voice or music.

Claims

1. An external power bank apparatus with speaker, comprising:

a microcontroller unit;

a power bank charging unit electrically connected to the microcontroller unit, adapted for receiving power from a power source;

a power bank battery unit electrically connected to the microcontroller unit and the power bank charging unit so that the power bank battery unit is charged by the power received from the power source;

a voltage boosting unit electrically connected to the power bank charging unit, the microcontroller unit and the power bank battery unit;

a discharging unit electrically connected to the power bank charging unit and the voltage boosting unit, adapted for connecting an individual portable electronic apparatus so that the power provided from the power source is directly applied to the portable electronic apparatus through the power bank charging unit and the discharging unit for charging a portable electronic apparatus battery unit of the portable electronic apparatus, or the power supplied by the power bank unit is boosted by the voltage boosting unit and sent to the discharging unit to supply for the portable electronic apparatus;

a speaker unit electrically connected to the power bank battery unit, so that the power is applied to the speaker by the power bank unit; and

an audio signal input unit electrically connected to the power bank battery unit and the speaker, adapted for connecting an audio signal output unit of the portable electronic apparatus so that music or audio signals are sent from the audio signal output unit to the audio signal input unit and voice or music is outputted from the speaker unit.

2. The power bank apparatus with speaker in claim 1, further including a protection unit electrically connected to the microcontroller unit and the discharging unit, which is used to detect a working status of the discharging unit so as to cut off the power charging for the portable electronic apparatus if overcharging or overloading is happened.

3. The power bank apparatus with speaker in claim 1, wherein the discharging unit further includes a voltage regulation subunit electrically connected to the power bank charging unit, which is used to regulate an output voltage to the portable electronic apparatus.

4. The power bank apparatus with speaker in claim 3, wherein the discharging unit further includes a voltage switching subunit electrically connected to the power bank charging unit, which is used to switch the output voltage to achieve a voltage requirement of the portable electronic apparatus.

5. The power bank apparatus with speaker in claim 1, wherein the power bank charging unit is a charging circuit.

6. The power bank apparatus with speaker in claim 1, wherein the speaker unit is a speaker.

7. The power bank apparatus with speaker in claim 3, wherein the voltage regulation subunit is a voltage regulation circuit.

8. The power bank apparatus with speaker in claim 4, wherein the voltage switching subunit is a voltage switching circuit.

9. The power bank apparatus with speaker in claim 4, wherein the output voltage is for charging a portable electronic apparatus battery unit of the portable electronic apparatus.