CN202580669U

CN202580669U - Flashlight

Info

Publication number: CN202580669U
Application number: CN 201220179647
Authority: CN
Inventors: 胡珍荣
Original assignee: NINGBO RONGFA ELECTRICAL APPLIANCE CO Ltd
Current assignee: NINGBO RONGFA ELECTRICAL APPLIANCE CO Ltd
Priority date: 2012-04-25
Filing date: 2012-04-25
Publication date: 2012-12-05
Anticipated expiration: 2022-04-25

Abstract

The utility model discloses a flashlight which comprises a power source (1), a switch (2) and a light emitting element (3), wherein the power source (1), the switch (2) and the light emitting element (3) are sequentially electrically connected. A single-chip microcomputer (4) and a power source driving integrated circuit (5) are electrically connected between the switch (2) and the light emitting element (3), an input end of the single-chip microcomputer (4) is electrically connected with the power source (1) through the switch (2), and an output end of the single-chip microcomputer (4) is electrically connected with a controlled end of the power source driving integrated circuit (5). An input end of the power source driving integrated circuit (5) is electrically connected with the power source (1) through the switch (2), and an output end of the power source driving integrated circuit (5) is electrically connected with the light emitting element (3) through a constant current expansion circuit (6). The flashlight has various operating modes.

Description

Flashlight

Technical field

The utility model relates to technical field of lighting fixtures, specifically is a kind of flashlight.

Background technology

Flashlight is the lighting apparatus that people often use in the daily life; The most function singleness of present flashlight; Only possess bright and the two kinds of mode of operations that do not work, can't satisfy the instructions for use of people's needs different illumination intensity under different situations, and can't be at some in particular cases; During such as needs calling for help, caution, to the special flicker requirement of light.

The utility model content

The utility model technical problem to be solved is that the flashlight with multiple mode of operation is provided.

For solving the problems of the technologies described above; The flashlight that the utility model provides comprises the power supply, switch and the light-emitting component that are electrically connected successively, is electrically connected with single-chip microcomputer and power drives integrated circuit between described switch and the light-emitting component; An input of single-chip microcomputer is electrically connected with power supply through switch; An output of single-chip microcomputer is electrically connected with the controlled end of power drives integrated circuit, and the input of power drives integrated circuit is electrically connected with power supply through switch, and the output of power drives integrated circuit is electrically connected with light-emitting component through constant expansion current circuit; Constant expansion current circuit comprises transistor Q1, diode D2 and the inductance L 1 that links to each other with the power drives integrated circuit; Power series has protective resistance R3, simultaneously respectively and be connected to Zener diode DZ, filter capacitor C1, forms current rectifying and wave filtering circuit.

After adopting above structure, the utility model compared with prior art has following advantage:

Single-chip microcomputer can preestablish the illumination mode of multiple light emitting diode; Disconnection, closure through switch; Give pulse signal of single-chip microcomputer, after single-chip microcomputer receives pulse signal, send the pattern switching command and give the power drives integrated circuit; The illumination mode of light emitting diode is switched, satisfied the instructions for use of needs different light pattern under the different situations.

As improvement, an input of described single-chip microcomputer is electrically connected with voltage detection module, and an output of single-chip microcomputer is electrically connected with the alarm indicator lamp simultaneously; Voltage detection module comprises and detects resistance R 1, R2, R3 and diode D1, and wherein R1 and R2, R4 and D1 are serially connected with respectively between power supply and the ground, and two input ports of single-chip microcomputer are connected between the positive pole of R4 and D1, between R1 and the R2; A delivery outlet of single-chip microcomputer is connected with a LED alarm indicator lamp through a protective resistance R7, and voltage detection module can detect supply voltage, and the input single-chip microcomputer; When supply voltage is lower than setting value; Single-chip microcomputer sends instruction and gives LED alarm indicator lamp, and LED alarm indicator lamp sends ruddiness, reminds user's electric weight not enough; When under five kinds of mode of operations, all sending out a warning, need to change battery in flashlight.

As further improvement, described flashlight also comprises lamp holder and lamp body, and light-emitting component is contained in the lamp holder; Power capacity is in the lamp body, and lamp is provided with control circuit board and drive circuit board on one's body, is provided with conductive plate between light-emitting component and the drive circuit board; Single-chip microcomputer and voltage detection module are located on the control circuit board, and the power drives integrated circuit is located on the drive circuit board, and switch and alarm indicator lamp are located at the tail end of lamp body; Control circuit board is connected through the lead atom line with drive circuit board, and control circuit board is connected through the conduction steel wire with the alarm indicator lamp, and switch is a key switch; The user is with the electric weight printing opacity through by the hatting push switch on the alarm indicator lamp, make things convenient for printing opacity; This flashlight structure is compact, and is rationally distributed, easy to use.

Description of drawings

Fig. 1 is the circuit theory diagrams of the utility model flashlight;

Fig. 2 is the structural representation of the utility model flashlight.

Wherein, 1, power supply; 2, switch; 3, light-emitting component; 4, single-chip microcomputer; 5, power drives integrated circuit; 6, constant expansion current circuit; 7, voltage detection module; 8, alarm indicator lamp; 9, lamp holder; 10, lamp body; 11, control circuit board; 12, drive circuit board; 13, conductive plate.

The specific embodiment

Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done explanation in further detail.

Circuit theory diagrams by the utility model flashlight shown in Figure 1 can be known; It comprises power supply 1, the switch 2 and light-emitting component 3 that is electrically connected successively; Be electrically connected with single-chip microcomputer 4 and power drives integrated circuit 5 between described switch 2 and the light-emitting component 3; An input of single-chip microcomputer 4 is electrically connected with power supply 1 through switch 2; An output of single-chip microcomputer 4 is electrically connected with the controlled end of power drives integrated circuit 5, and the input of power drives integrated circuit 5 is electrically connected with power supply 1 through switch 2, and the output of power drives integrated circuit 5 is electrically connected with light-emitting component 3 through constant expansion current circuit 6; Constant expansion current circuit 6 comprises transistor Q1, diode D2 and the inductance L 1 that links to each other with the power drives integrated circuit; Power series has protective resistance R3, and simultaneously respectively and be connected to Zener diode DZ, filter capacitor C1, DZ, C1 form current rectifying and wave filtering circuit.

Power drives integrated circuit 5 comprises the current settings module, and capacitor C 3, resistance R 5, resistance R 6 that the current settings module comprises and connects through regulating the size of R5, R6, are used for setting the size of current of light-emitting component 3 under different working modes.

Described light-emitting component 3 is the XP-G great power LED.

An input of described single-chip microcomputer 4 is electrically connected with voltage detection module 7; An output of single-chip microcomputer 4 is electrically connected with alarm indicator lamp 8 simultaneously; Voltage detection module comprises detection resistance R 1, R2, R3 and diode D1; Wherein R1 and R2, R4 and D1 are serially connected with respectively between power supply and the ground, and two input ports of single-chip microcomputer are connected between the positive pole of R4 and D1, between R1 and the R2, and a delivery outlet of single-chip microcomputer is connected with a LED light through a protective resistance R7.

It also comprises lamp holder 9 and lamp body 10, and light-emitting component 3 is contained in the lamp holder 9, and power supply 1 is contained in the lamp body 10; Lamp body 10 is provided with control circuit board 11 and drive circuit board 12; Be provided with conductive plate 13 between light-emitting component 3 and the drive circuit board 12, single-chip microcomputer 4 is located on the control circuit board 11 with voltage detection module 7, and power drives integrated circuit 5 is located on the drive circuit board 12; Switch 2 and alarm indicator lamp 8 are located at the tail end of lamp body; Control circuit board 11 is connected through the lead atom line with drive circuit board 12, and control circuit board 11 is connected through the conduction steel wire with alarm indicator lamp 8, and switch 2 is a key switch; The user is with the electric weight printing opacity through by hatting push switch 2 on the alarm indicator lamp 8.

Described power supply 1 is by four battery pack formed of joint dry cells, and electric weight is full up, and to make voltage be 6V, when voltage detection module 7 detects electric weight and is lower than 3.2V, and alarm indicator lamp 8 warning that glows.

In the present embodiment, single-chip microcomputer 4 preestablishes five kinds of mode of operations, is respectively 100% brightness, 60% brightness, 30% brightness, quick-fried sudden strain of a muscle, emergency SOS; Disconnection, closure through switch 3; Give 4 one pulse signals of single-chip microcomputer, after single-chip microcomputer 4 is received pulse signal, send the pattern switching command and give power drives integrated circuit 5; Light-emitting component 3 is switched between five kinds of mode of operations successively, satisfy the instructions for use of needs different light pattern under the different situations.

Below only use preferable instance with regard to the utility model and made explanation, but can not be interpreted as it is the restriction to claim, the structure of the utility model can have other variations, is not limited to said structure.In a word, the various variations of being done in the protection domain of all independent claims at the utility model are all in the protection domain at the utility model.

Claims

1. flashlight; Comprise the power supply (1), the switch (2) and light-emitting component (3) that are electrically connected successively; It is characterized in that: be electrically connected with single-chip microcomputer (4) and power drives integrated circuit (5) between described switch (2) and the light-emitting component (3); An input of single-chip microcomputer (4) is electrically connected with power supply (1) through switch (2); An output of single-chip microcomputer (4) is electrically connected with the controlled end of power drives integrated circuit (5); The input of power drives integrated circuit (5) is electrically connected with power supply (1) through switch (2), and the output of power drives integrated circuit (5) is electrically connected with light-emitting component (3) through constant expansion current circuit (6).

2. flashlight according to claim 1 is characterized in that: an input of described single-chip microcomputer (4) is electrically connected with voltage detection module (7), and an output of single-chip microcomputer (4) is electrically connected with alarm indicator lamp (8) simultaneously.

3. flashlight according to claim 1; It is characterized in that: it also comprises lamp holder (9) and lamp body (10); Light-emitting component (3) is contained in the lamp holder (9), and power supply (1) is contained in the lamp body (10), and lamp body (10) is provided with control circuit board (11) and drive circuit board (12); Be provided with conductive plate (13) between light-emitting component (3) and the drive circuit board (12); Single-chip microcomputer (4) is located on the control circuit board (11) with voltage detection module (7), and power drives integrated circuit (5) is located on the drive circuit board (12), and switch (2) and alarm indicator lamp (8) are located at the tail end of lamp body.