CN2150440Y - Multifunction desk lamp - Google Patents

Abstract

The utility model discloses a multifunction desk lamp which integrates a pencil case and a desk lamp into one body, belonging to a lighting lamp. The multifunction desk lamp which is especially suitable for using of frequency power-failure rural students can use batteries or ac power as power supply for lighting; a dc power supply, a transformer, a bridge rectifier, a reflecting lamp shade, a bulb and a bulb protection cover are arranged on a box cover; an insulating transparent plate is installed at the inner surface of the box cover, and the box body is movably connected with the box cover; the two ends of the connection part is provided with positioning support. The utility model which is especially suitable for the using of the frequency power-failure rural students can also be used as lighting of the desk lamp after power failure.

Description

Multifunction desk lamp

The utility model relates to a kind of multifunctional box type desk lamp that integrates writing case, desk lamp, is particularly suitable for rural students and uses, and belongs to a kind of lighting.

At present, the writing case that the student uses, desk lamp all respectively are one, and desk lamp carries inconvenience, and need to use AC power, particularly in the rural area, often have a power failure, and desk lamp then can not use, and influences student's study.

The purpose of this utility model is to overcome the weak point in the background technology and a kind of compact conformation, easy to carry is provided, not only made writing case but also done that desk lamp uses, can use the multifunctional box type desk lamp of interchange, two kinds of power supplys of direct current (battery), do the desk lamp use in case having a power failure opens the lid immediately, also can use under the situation of AC-less power in the open air.

The purpose of this utility model is achieved in that it is made up of box body, lid, lampshade, bulb etc., be characterized in that dc source (battery), transformer, bridge rectifier, lampshade, bulb, bulb protective cover place on ac power switch, the cell switch lid, the lid inner surface is equipped with the insulation transparent baffle; Box body and lid flexibly connect, and positioning supports is equipped with at the connecting portion two ends.

The purpose of this utility model can also realize by following measure: its transformer is connected with bridge rectifier; connect bulb by ac power switch; the purpose that installs fairing additional is in order to make current stabilization; dc source connects bulb, lampshade, bulb by DC power supply switch and is embedded on the lid, is fixed with the bulb protective cover above.The box body of boxlike desk lamp is with general writing case.

The utility model is compared background technology and is had following advantage:

1, integrate writing case, desk lamp, portably use conveniently, can open the lid in case have a power failure, it is bright to turn on the DC power supply switch lamp, promptly can be used as desk lamp and uses;

2, easy to use, wide, interchange, dc source all can use, and the direct current illumination is used in the back that has a power failure;

3, compact conformation, volume is little, cost is low.

The drawing explanation of accompanying drawing:

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is a circuit diagram of the present utility model.

Among the figure: lid (1), battery (2), transformer (3), diode (4), lampshade (5), bulb (6), bulb protective cover (7), ac power switch (8), DC power supply switch (9), insulation transparent backplate (10), box body (11), positioning supports (12).

Embodiment is described in further detail below in conjunction with (accompanying drawing):

Dc source of the present utility model is No. 2 battery series connection of three joints, as shown in Figure 2, transformer (3) is the pressure drop transformer, voltage is reduced to 2V, the bridge rectifier that is made of four diodes (4) is connected with the bulb (6) of two parallel connections and is formed a loop, the battery loop of formation of connecting with the bulb (6) of two parallel connections.See Fig. 1; battery (2); transformer (3); diode (4) places on the lid (1); lid (1) inner surface is fixed with the insulation transparent backplate made from lucite (10) above-mentioned components and parts is covered; be screwed on lid (1); lampshade (5); bulb (6) is embedded on the lid (1); lampshade (5) upper edge is higher than the lower edge and slopes inwardly; be fixed with the bulb protective cover (7) of glass above; DC power supply switch (9); ac power switch (8) replaces with two-way switch; place on the lid (1); lampshade (5) below; bulb (6) is 2 of the miniature bulbs of 1.5V, lid (1) double as desk lamp arm, and box body (11) is with general writing case; be used to adorn stationery; the double as Desk lamp feet, box body (11) flexibly connects with lid (1), and a positioning supports (12) is respectively adorned at the connecting portion two ends; be used to support lid (1), the maximum opening angle of lid (1) is 90 °.

Claims (4)

1, a kind of multifunctional box type desk lamp comprises box body, lid, lampshade, bulb, it is characterized in that:

A, dc source, transformer, bridge rectifier, lampshade, bulb, bulb protective cover place on the lid, and the lid inner surface is equipped with the insulation transparent plate;

B, box body, lid flexibly connect, and positioning supports is equipped with at the connecting portion two ends.

2, multifunctional box type desk lamp according to claim 1 is characterized in that transformer connects with bridge rectifier, connects bulb by ac power switch, and dc source connects bulb by DC power supply switch.

3, multifunctional box type desk lamp according to claim 1 is characterized in that box body is with general writing case.

4, multifunctional box type desk lamp according to claim 1 is characterized in that lampshade, bulb are embedded on the lid, are fixed with the bulb protective cover above the lampshade.

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