Portable charger for mobile phone
First Claim
Patent Images
1. A portable charger for a mobile phone, comprising:
- a front housing having an accommodation recess formed in a front side of the front housing to accommodate a mobile phone, and cutouts formed on right and left sides of an upper portion of the accommodation recess to allow a user to easily grip the mobile phone seated in the accommodation recess and easily manipulate a volume key of the mobile phone;
a rear housing fastened to a back of the front housing by screws to close a rear open side of the front housing;
a belt clip detachably attached into a long accommodation recess formed on a back of the rear housing to change a mounting position of the rear housing;
a fastening unit placed in the long accommodation recess formed on the back of the rear housing to prevent the belt clip from being removed from the accommodation recess;
a pair of clamps rotatably placed on right and left sidewalls of the accommodation recess formed in the front housing to prevent the mobile phone from being removed during charging while engaging with recesses formed on both sides of the mobile phone, respectively;
a release button placed above a location between the front housing and the rear housing to regulate protrusion and retraction of projections of the clamps;
an interface connector mounted in a lower portion of the accommodation recess, formed in the front housing, through a shaft and a coil spring to be rotated in a block;
a secondary battery placed in a space formed by the front and rear housings; and
a charge control unit configured to perform control so that Direct Current (DC) voltage, converted by a travel adaptor, is received through a cord and a connector and the second battery and the battery of the mobile phone are simultaneously charged with the DC voltage, or the battery of the mobile phone is charged with DC voltage charged in the secondary battery.
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Accused Products
Abstract
Disclosed herein is a portable charger for a mobile phone. The portable charger includes a front housing, a rear housing, a belt clip, a fastening unit, a pair of clamps, a release button, an interface connector, a secondary battery and a charge control unit. The portable charger is easy to carry, can easily charge the battery of the mobile phone with direct current power charged in a secondary battery, and can simultaneously charge the secondary battery and the battery of the mobile phone using a travel adaptor.
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Citations
12 Claims
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1. A portable charger for a mobile phone, comprising:
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a front housing having an accommodation recess formed in a front side of the front housing to accommodate a mobile phone, and cutouts formed on right and left sides of an upper portion of the accommodation recess to allow a user to easily grip the mobile phone seated in the accommodation recess and easily manipulate a volume key of the mobile phone;
a rear housing fastened to a back of the front housing by screws to close a rear open side of the front housing;
a belt clip detachably attached into a long accommodation recess formed on a back of the rear housing to change a mounting position of the rear housing;
a fastening unit placed in the long accommodation recess formed on the back of the rear housing to prevent the belt clip from being removed from the accommodation recess;
a pair of clamps rotatably placed on right and left sidewalls of the accommodation recess formed in the front housing to prevent the mobile phone from being removed during charging while engaging with recesses formed on both sides of the mobile phone, respectively;
a release button placed above a location between the front housing and the rear housing to regulate protrusion and retraction of projections of the clamps;
an interface connector mounted in a lower portion of the accommodation recess, formed in the front housing, through a shaft and a coil spring to be rotated in a block;
a secondary battery placed in a space formed by the front and rear housings; and
a charge control unit configured to perform control so that Direct Current (DC) voltage, converted by a travel adaptor, is received through a cord and a connector and the second battery and the battery of the mobile phone are simultaneously charged with the DC voltage, or the battery of the mobile phone is charged with DC voltage charged in the secondary battery. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A portable charger for a mobile phone, comprising:
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a front housing having an accommodation recess formed in a front side of the front housing to accommodate a mobile phone, and cutouts formed on right and left sides of an upper portion of the accommodation recess to allow a user to easily grip the mobile phone seated in the accommodation recess and easily manipulate a volume key of the mobile phone;
a rear housing fastened to a back of the front housing by screws to close a rear open side of the front housing;
a belt clip detachably attached into a long accommodation recess formed on a back of the rear housing to change a mounting position of the rear housing;
a fastening unit placed in the long accommodation recess formed on the back of the rear housing to prevent the belt clip from being removed from the accommodation recess;
a pair of clamps rotatably placed on right and left sidewalls of the accommodation recess formed in the front housing to prevent the mobile phone from being removed during charging while engaging with recesses formed on both sides of the mobile phone, respectively;
a release button placed above a location between the front housing and the rear housing to regulate protrusion and retraction of projections of the clamps;
an interface connector mounted in a lower portion of the accommodation recess, formed in the front housing, through a shaft and a coil spring to be rotated in a block; and
a secondary battery placed in a space formed by the front and rear housings to be charged with DC voltage, obtained by a travel adaptor, under control of a charge control unit.
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10. A charge control unit for a mobile phone portable charger comprising:
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a microprocessor for controlling an entire operation relating to charge of a battery of the mobile phone and a secondary battery associated with the portable charger;
voltage converting means for receiving DC power converted by a travel adaptor and DC power (DC current and DC voltage) charged in the secondary battery, boosting or stepping down the DC power to charge the battery of the mobile phone, and outputting the boosted or stepped-down DC power to the microprocessor;
first charging current detecting means for receiving the DC power boosted or stepped-down by the voltage converting means, detecting charging current, and outputting the detected charging current to the microprocessor;
first constant current/voltage adjusting means for receiving the DC voltage boosted or stepped-down by the voltage converting means and the charging current detected by the first charging current detecting means, performing operation on the DC voltage and the charging current through the microprocessor, and receiving the charging current detected by the first charging current detecting means and adjusting the detected charging current to constant current and voltage in response to a control signal from the microprocessor if the boosted or stepped-down voltage and the charging current are not constant current and voltage of a predetermined level;
a first switch for receiving the constant current/voltage adjusted by the first constant current/voltage adjusting means and controlling charge of the battery of the mobile phone through an output terminal in response to a control signal from the microprocessor;
second charging current detecting means for receiving the DC power (DC current and DC voltage) converted by the travel adaptor, and detecting charging current and outputting the detected charging current to the microprocessor to charge the secondary battery;
second constant current/voltage adjusting means for receiving the charging current detected by the second charging current detecting means, performing operation on the charging current through the microprocessor, and receiving the charging current detected by the second charging current detecting means and adjusting the detected charging current to constant current and voltage in response to a control signal from the microprocessor if the charging current is not constant current and voltage of a predetermined level;
a second switch for receiving the constant current/voltage adjusted by the second constant current/voltage adjusting means and controlling the charge of the secondary battery in response to a control signal from the microprocessor;
discharge preventing means for performing control in such a way as to prevent the DC voltage charged in the secondary battery if the battery of the mobile phone is not connected to the output terminal, and to output the DC power charged in the secondary battery to the voltage converting means and charge the battery of the mobile phone if the battery of the mobile phone is connected to the output terminal;
charge status display means for displaying charge status of the battery of the mobile phone and charge status of the secondary battery; and
temperature detecting means for detecting surrounding temperature and outputting the surrounding temperature to the microprocessor to prevent charge of the battery of the mobile phone and the secondary battery under control of the microprocessor if the surrounding temperature is above a predetermined temperature of about 45°
C. or below a predetermined temperature of about −
5°
C. - View Dependent Claims (11, 12)
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Specification