Composite module for mobile phone

A composite module includes a macro focus module comprising a second lens and at least one light source near the second lens, wherein the second lens is movable, after the time that the second lens moves to a predetermined location in front of the first lens, the light source illuminates, and after the time that the second lens leaves the predetermined location of the first lens, the light source extinguishes; a power supply module comprising a power supply and a connection interface; and a first circuit board coupled to the power supply, the light source and the connection interface, wherein the power supply is configured to provide power for the light source, and further provide power for the mobile phone through the connection interface which is connected to the mobile phone.

BACKGROUND OF THE INVENTION

Field of the Invention

The invention relates to a composite module for a mobile phone, and more particularly to a composite module capable of taking macro shots and severing as a mobile power supply.

Description of the Related Art

In addition to protecting mobile phones, a commercially available mobile phone covers may have other functions.

A conventional mobile phone cover has a movable lens for mobile phones. When a mobile phone is received in the mobile phone cover, the movable lens can be moved to a position in front of a lens of the mobile phone to provide macro focus or telephoto shot effects.

BRIEF SUMMARY OF THE INVENTION

The invention provides a composite module for a mobile phone, capable of taking macro shots and severing as a mobile power supply. The composite module in accordance with an exemplary embodiment of the invention includes a macro focus module comprising a second lens and at least one light source near the second lens, wherein the second lens is movable, after the time that the second lens moves to a predetermined location in front of the first lens, the light source illuminates, and after the time that the second lens leaves the predetermined location of the first lens, the light source extinguishes; a power supply module comprising a power supply and a connection interface; and a first circuit board coupled to the power supply, the light source and the connection interface, wherein the power supply is configured to provide power for the light source, and the power supply further provides power for the mobile phone through the connection interface which is connected to the mobile phone.

The composite module in accordance with another exemplary embodiment of the invention for a mobile phone including a first lens includes a macro focus module includes a second lens and at least one light source near the second lens, wherein the second lens is movable, after the time that the second lens moves to a predetermined location in front of the first lens, the light source illuminates, and after the time that the second lens leaves the predetermined location in front of the first lens, the light source extinguishes; a power supply module comprising a power supply; and a first circuit board coupled to the power supply and the light source, wherein the power supply is configured to provide power for the light source.

The composite module in accordance with another exemplary embodiment of the invention for a mobile phone including a first lens, a light source and a power supply configured to provide power for the light source includes a macro focus module comprising a second lens, wherein the second lens is movable, after the time that the second lens moves to a predetermined location in front of the first lens, the light source illuminates, and after the time that the second lens leaves the predetermined location in front of the first lens, the light source extinguishes.

DETAILED DESCRIPTION OF THE INVENTION

Referring toFIG. 1, a composite module1000includes an upper cover5, a lower cover7, a macro focus module100, a power supply module200and a first circuit board300. The macro focus module100, the power supply module200and the first circuit board300are disposed on the lower cover7. The lower cover7has two lateral sides71and72. The lateral side71has a clamping arm471, and the lateral side72has a clamping arm472. The distance between the clamping arms471and472is slightly longer than the width of a mobile phone. In assembly, the macro focus module100, the power supply module200and the first circuit board300are covered by the upper cover5. The mobile phone (not shown) is placed in a space formed by the lateral sides71and72and abuts the upper cover5. The clamping arms471and472clamps the mobile phone to avoid an accidental separation therebetween.

The first circuit board300is connected to the macro focus module100and the power supply module200. The macro focus module100enables the mobile phone to take macro shots. The power supply module200serves as a mobile power supply for charging the mobile phone.

Referring toFIGS. 1, 2, 3aand3b, the macro focus module100includes a cover20, a lens (second lens)23, a second circuit board12, four light emitting diodes (light source)101-104, a sliding member22and a torsion spring31. A square frame25is disposed on the cover20, and the lens23is mounted in the frame25. The second circuit board12has a square opening2fitted to the square frame25so as to be positioned in the cover20. The LEDs101-104are disposed on the second circuit board12, and the second circuit board12is electrically connected to the first circuit board300through a cable11. The sliding member22is L shaped and has a longitudinal side221and a transverse side222. The longitudinal side221engages a path formed by a rib51(seeFIG. 1) and a lateral side72of the lower cover7. A boss49is formed on the longitudinal side221and corresponds to a slot opening48formed on the lateral side72of the lower cover7. One end of the torsion spring31props against a protrusion43on the transverse side222, the central portion of the torsion spring31fits to a protrusion42, and the other end of the torsion spring31fits to a protrusion45of the cover20. A hole46of the cover20is fitted to a shaft41(seeFIG. 1) of the lower cover7. A protrusion44is disposed on the transverse side of the sliding member22. The operation of the macro focus module100is described as follows.

Referring toFIGS. 4 and 5, when the macro focus module100is used, the boss49is pushed upward to move the sliding member22to a first position (seeFIG. 4). At this time, the protrusion44of the sliding member22pushes a switch16on the first circuit board300to allow power of the lithium battery (power supply)14provided for the LEDs101-104on the second circuit board12through the first circuit board300and the cable11to switch the LEDs101-104on. The cover20and the lens23rotate to a predetermined location in front of a camera lens (first lens) of the mobile phone so that the mobile phone can take macro shots. When the boss49is pushed downward, the sliding member22is moved to a second position (as shown inFIG. 5). At this time, the torsion spring31drives the sliding member22to rotate the cover20and the lens23about the shaft41so that the lens23leaves the camera lens of the mobile phone, and the protrusion44of the sliding member22leaves the switch16on the first circuit board300to switch the LEDs101-104off. Thus, the camera lens of the mobile phone can be used to take photos.

Referring toFIG. 1again, the power supply module200includes a lithium battery14, a USB connector (connection interface)181and a third circuit board17. The lithium battery14is electrically connected to the first circuit board300by springs321,322and323. The first circuit board300is electrically connected to the third circuit board17by a cable19. The USB connector181is disposed on the third circuit board17. An external cable15connects the USB connector181and the mobile phone with an end151connected to the USB connector181and the other end152connected to the mobile phone. Thus, the lithium battery14is able to provide power for the mobile phone through the first circuit board300, the cable19, the third circuit board17and USB connector181.

A first control chip (not shown) is disposed on the third circuit board17. The first control chip functions to compare a voltage of the lithium battery14and a voltage of the mobile phone. When the voltage of the mobile phone is smaller than the voltage of the lithium battery14, the first control chip is switched on, and the lithium battery14is able to provide power for the mobile phone. When the voltage of the mobile phone is greater than the voltage of the lithium battery14, the first control chip is switched off to prevent the mobile phone from charging the lithium battery14.

FIG. 6depicts another embodiment of a composite module of the invention. A holder52is formed on a lower side of the upper cover5(seeFIG. 6). An USB connector182which is different from the USB connector181protrudes inwards. The mobile phone61is held by the holder52and connected to the USB connector182. The external cable15is not necessary. The lithium battery14is able to provide power for the mobile phone61through the first circuit board300, the cable19, the third circuit board17and the USB connector182.

FIG. 7depicts another embodiment of a composite module of the invention. USB connectors181and182are disposed on the third circuit board17. The USB connector181connects a power cable (second cable)18. The power cable18is connected to an external power supply. In addition to the first control chip, a second control chip (not shown) is also disposed in the third circuit board17. When the voltage of the lithium battery14is lower than a predetermined value, the second control chip is switched on, and the external power supply is able to charge the lithium battery4through the power cable18, the USB connector181, the third circuit board17, the cable19and the first circuit board300. When the voltage of the lithium battery14is larger than the predetermined value, the second control chip is switched off to avoid overcharging the lithium battery4.

From the above descriptions, it is understood that the mobile phone cover of the invention including the macro focus module100for macro shots and the power supply module200for mobile power supply has more functions than before.