MULTIPURPOSE HAND LAMP

• US 20110199757A1
• Filed: 02/02/2011
• Published: 08/18/2011
• Est. Priority Date: 02/12/2010
• Status: Active Grant

• Current Assignee: Tang Yang Dies Co., Ltd.
• Original Assignee: Tang Yang Dies Co., Ltd.
• Inventors: CHENG, Hsu-Cheng
• Granted Patent: US 8,371,709 B2
• Time in Patent Office: Days
• US Class Current: 362/183
• CPC Class Codes: B60N 3/14 of electrically-heated lighters
• CPC Class Codes: F21L 4/08 characterised by means for in situ recharging of the batteries or cells
• CPC Class Codes: F21V 33/00 Structural combinations of lighting devices with other articles, not otherwise provided for
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

A multipurpose hand lamp comprises a housing accommodating a motherboard assembly carrying a contact switch, a lamp switch and a power socket, a power supply unit electrically connected with the power switch and carrying at least one replaceable rechargeable battery for power input and power output, a light source unit having a lamp cover hinged to the housing and at least LED lamp carried in the lamp cover and electrically connected with the lamp switch for giving off light, and an electric heater having an electric heating wire electrically connected with the contact switch and disposed below a cigarette lighter port of the housing, and a spring-loaded holding-down member for switching on the contact switch to turn on the electric heater when the lamp cover is opened.

Claims

1. A multipurpose hand lamp, comprising:

a housing defining therein an accommodation chamber, said housing having a cigarette lighter port and at least two lugs located on a top side thereof;

a power supply unit, said power supply unit comprising a motherboard assembly mounted in said accommodation chamber, said motherboard assembly comprising a contact switch, a lamp switch and a power socket, an electronic control unit built in said motherboard assembly and electrically coupled to said power socket and said contact switch, a positive contact terminal and a negative contact terminal suspending in said accommodation chamber and respectively electrically connected to said motherboard assembly, and at least one rechargeable battery electrically connected between said positive contact terminal and said negative contact terminal to form with said positive contact terminal, said negative contact terminal and said power socket an electric loop;

a light source unit, said light source unit comprising a lamp cover, said lamp cover having at least two mounting blocks pivotally connected to said at least two lugs of said housing by a pivot pin and a through hole on a top side thereof, a circuit board mounted inside said lamp cover and electrically connected with said lamp switch of said motherboard assembly to form an electric loop and at least one LED lamp installed in said circuit board of said light source unit corresponding to said through hole of said lamp cover; and

an electric heater, said electric heater comprising an electric heating wire disposed inside said housing at a bottom side relative to said cigarette lighter port and electrically connected with said contact switch of said motherboard assembly to form an electric loop, a holding-down member, said holding-down member having a top contact end extending out of said housing through a gap between said two lugs and stopped against said mounting blocks, a bottom rod stopped against a part inside said housing and a first press rod adapted for pressing said contact switch, and a spring member sleeved onto said bottom rod of said holding-down member and stopped between said holding-down member and said housing;

wherein opening said lamp cover causes said lamp cover to squeeze said contact end of said holding-down member downward in forcing said bottom rod to compress said spring member and said first press rod to switch on said contact switch, enabling said at least one rechargeable battery to provide a battery power supply to said motherboard assembly and said electric heating wire for lighting a cigarette.

2. The multipurpose hand lamp as claimed in claim 1, wherein said power socket is a USB (universal serial bus) connector.

3. The multipurpose hand lamp as claimed in claim 1, wherein said motherboard assembly comprises two circuit boards and two spacer blocks set between said two circuit boards;

said contact switch is arranged on said two circuit boards at a top side, comprising two contact terminals arranged one above the other.

4. The multipurpose hand lamp as claimed in claim 1, wherein said motherboard assembly further comprises indicator means electrically coupled to said electronic control unit, said indicator means comprising a charge indicator lamp and a plurality of power volume indicator lamps and transparent lampshade covering said charge indicator lamp and said power volume indicator lamps and partially protruding out of a view hole on said housing.

5. The multipurpose hand lamp as claimed in claim 1, wherein said light source unit further comprises a convex lens mounted in said through hole of said lamp cover.

6. The multipurpose hand lamp as claimed in claim 1, wherein said light source unit further comprises a cover plate covering a bottom open side of said lamp cover and an insulative pad set in between the circuit board and cover plate of said light source unit.

7. The multipurpose hand lamp as claimed in claim 1, wherein said cigarette lighter port has a tapered inside wall.

8. The multipurpose hand lamp as claimed in claim 1, wherein said electric heater further comprises a ceramic holder holding said electric heating wire.

9. The multipurpose hand lamp as claimed in claim 1, wherein said holding-down member further has a second press rod disposed at one lateral side opposite to said first press rod;

said motherboard assembly further comprises a return spring set corresponding to said second press rod of said holding-down member;

said housing further comprises two rib plates protruded from an inside wall thereof and adapted for guide movement of said holding-down member in vertical.

10. The multipurpose hand lamp as claimed in claim 1, wherein said housing further has a hanging hole.