CN204300933U - rechargeable lamps - Google Patents

Abstract

The utility model provides a chargeable lamps and lanterns, it includes: a USB input unit for inputting a DC current; the boosting circuit is electrically connected with the USB input unit so as to boost the direct current to 6.5V; the control management unit is electrically connected with the booster circuit; the battery unit comprises a plurality of rechargeable batteries which are electrically connected with the control management unit, and the control management unit charges the battery unit by the boosted direct current; and the lighting unit is electrically connected with the battery unit, so that the control management unit charges the battery unit with the boosted direct current to supply the power required by the lighting unit.

Description

rechargeable lamps

technical field

The utility model relates to a lamp, in particular to a chargeable lamp.

Background technique

Most of the existing portable lamps use disposable batteries for power supply, but the disposable batteries do not have charging capability, so they cannot be reused, and they need to be discarded after use, which has the disadvantages of cost waste and environmental pollution.

However, there are lamps on the market that use rechargeable batteries as the power source. They mainly use a transformer to convert the external AC power into direct current to charge the rechargeable batteries inside the lamps. It has the disadvantage of being inconvenient to carry.

Next, there is another kind of lamp that uses the USB port to connect to an external power source to charge the rechargeable battery from the external power source. However, the general USB voltage is only 5V output, and it can only charge three 1.4V rechargeable batteries. It is not necessarily able to fill it up, so the existing lamps cannot meet the needs of current users in use.

Utility model content

In order to solve the above problems, the purpose of this utility model is to disclose a rechargeable lamp, which uses a boost circuit to boost the input DC power to 6.5V to charge the battery unit and fully charge it to supply The required power for the lighting unit.

In order to achieve the above purpose, the utility model provides a rechargeable lamp, which includes: a USB input unit for inputting a direct current; a boost circuit electrically connected with the USB input unit to boost the direct current to 6.5V ; a control management unit, electrically connected to the boost circuit; a battery unit, including several rechargeable batteries, electrically connected to the control management unit and the control management unit charges the battery unit with the boosted direct current; The lighting unit is electrically connected to the battery unit.

Preferably, the control management unit of the present invention controls the battery unit to change to a slow charging mode when it is charged to 350mah.

Preferably, the control management unit of the present invention controls the battery unit to stop charging when it is charged to 5V~5.6V.

Preferably, the control management unit of the present invention stops supplying power to the lighting unit when the voltage of the battery unit is controlled to be lower than 3.3V.

Preferably, the utility model further includes an LED indicator unit, which is electrically connected to the control management unit, and emits light when the battery unit is being charged.

Preferably, the battery unit of the present invention includes four rechargeable batteries.

Preferably, the rechargeable batteries of the present utility model are nickel-metal hydride batteries.

The beneficial effects of the utility model are: the rechargeable lamp of the utility model uses a boost circuit to boost the input direct current to 6.5V, and uses the control management unit to charge the battery unit with the boosted direct current, which can It is fully charged in order to supply the required power of the lighting unit.

Description of drawings

[Fig. 1] is a structural block diagram of the present utility model.

[Fig. 2] is a schematic block diagram of the battery unit of the present invention.

[Description of main component symbols]

Rechargeable light fixture 100 USB input unit 10

Boost circuit 20 control management unit 30

battery unit 40 rechargeable battery 41

Lighting unit 50 LED light indicating unit 60

External power supply 200.

Detailed ways

In order to illustrate the central idea of the utility model in the column of the above-mentioned utility model content, it is expressed in specific embodiments. Various objects in the embodiments are drawn according to proportions suitable for illustration and description, rather than according to the proportions and drawings of actual components, and are described first.

1, the rechargeable lamp 100 of the present invention includes a USB input unit 10, a boost circuit 20, a control management unit 30, a battery unit 40 and a lighting unit 50.

The USB input unit 10 can be a USB socket for electrically connecting to an external power source 200 with a USB plug, such as a computer, to input a direct current, and the input power of the USB input unit 10 is 5V/500mah.

The boost circuit 20 is electrically connected with the USB input unit 10, and is used for boosting and stabilizing the input direct current into a fixed voltage. In the present invention, the fixed voltage is 6.5V.

The control and management unit 30 is electrically connected between the boost circuit 20 and the battery unit 40 , and is used for controlling and managing the fixed voltage output by the boost circuit 20 to charge the battery unit 40 . In the present invention, the battery unit 40 includes a plurality of rechargeable batteries 41, preferably four Ni-MH batteries.

The lighting unit 50 is electrically connected to the battery unit 40 so that the battery unit 40 supplies power to the lighting unit 50 to make the lighting unit 50 operate.

Continuing from the above, the control management unit 30 of the present invention can control the battery unit 40 to change to a slow charging mode when it is charged to 350mah, and can control it to stop charging when the battery unit 40 is charged to 5V~5.6V to avoid overcharging. The control management unit 30 can further control to stop supplying power to the lighting unit 50 when the voltage of the battery unit 40 is lower than 3.3V.

The present invention further includes an LED indicator unit 60 electrically connected to the control management unit 30 for emitting light when the battery unit 40 is being charged.

Therefore, the utility model utilizes the USB input unit 10 to connect the external power supply 200 to charge the battery unit 40 in a DC-to-DC manner, so that the utility model does not need to use an additional transformer to charge the battery unit 40. more convenient.

Furthermore, the voltage of the rechargeable battery 41 of the present invention is 1.4V. When the USB input unit 10 inputs DC power and is boosted by the booster circuit 20 to a fixed voltage of 6.5V, the four rechargeable batteries 41 are charged. And it can be fully charged, which is more practical and functional than the existing charging method that can only charge 3 rechargeable batteries.

Although the utility model is illustrated with a preferred embodiment, those skilled in the art can make various changes without departing from the spirit and scope of the utility model. The above-mentioned embodiments are only used to illustrate the utility model, and are not intended to limit the scope of the utility model. All modifications or changes that do not violate the spirit of the utility model belong to the patent scope of the utility model.

Claims (8)

1. a chargeable light fixture, is characterized in that comprising:

One USB input block, in order to input a direct current;

One booster circuit, is electrically connected with this USB input block, so that this direct current is boosted to 6.5V;

One control and management unit, is electrically connected on this booster circuit;

One battery unit, comprises several rechargeable battery, be electrically connected on this control and management unit and this control and management unit be by boosting after this direct current this battery unit is charged; And

One lighting unit, is electrically connected on this battery unit.

2. chargeable light fixture as claimed in claim 1, is characterized in that: the input power of this USB input block is 5V/500mah.

3. chargeable light fixture as claimed in claim 1, is characterized in that: be transformed into a trickle charge pattern when this this battery unit of control and management unit controls charges to 350mah.

4. chargeable light fixture as claimed in claim 1, is characterized in that: stop charging when this this battery unit of control and management unit controls charges to 5V ~ 5.6V.

5. chargeable light fixture as claimed in claim 1, is characterized in that: when the voltage of this this battery unit of control and management unit controls is lower than 3.3V, stops this lighting unit supply electric power.

6. chargeable light fixture as claimed in claim 1, is characterized in that: more comprise a LED indicating member, is electrically connected on this control and management unit, when this battery unit charges, sends light.

7. chargeable light fixture as claimed in claim 1, is characterized in that: this battery unit includes four rechargeable batteries.

8. chargeable light fixture as claimed in claim 7, is characterized in that: those rechargeable batteries are Ni-MH battery.