CN114173454A - Electric torch - Google Patents
Electric torch Download PDFInfo
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- CN114173454A CN114173454A CN202111459610.4A CN202111459610A CN114173454A CN 114173454 A CN114173454 A CN 114173454A CN 202111459610 A CN202111459610 A CN 202111459610A CN 114173454 A CN114173454 A CN 114173454A
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- China
- Prior art keywords
- control unit
- lamp
- lamp control
- flashlight
- strip
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
- F21L4/00—Electric lighting devices with self-contained electric batteries or cells
- F21L4/02—Electric lighting devices with self-contained electric batteries or cells characterised by the provision of two or more light sources
- F21L4/022—Pocket lamps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V19/00—Fastening of light sources or lamp holders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
- F21V21/40—Hand grips
Abstract
The invention discloses a flashlight which comprises a lamp bead, a floodlight strip, a signal input unit, a control unit, a first lamp control unit and a second lamp control unit, wherein the floodlight strip is arranged on the lamp bead; the signal input unit is connected with the control unit, the signal input unit is used for providing a starting signal for the control unit, a first output end of the control unit is connected with the first lamp control unit, a second output end of the control unit is connected with the second lamp control unit, and the control unit is used for outputting a first lamp control signal and a second lamp control signal according to the starting signal; the first lamp control unit is connected with the lamp beads, and the second lamp control unit is connected with the floodlight strip; the first lamp control unit is used for controlling the state of the lamp beads according to the first lamp control signals, and the second lamp control unit is used for controlling the state of the floodlight strip according to the second lamp control signals. The flashlight is set to be a 360-degree luminous flashlight, so that illumination meeting the range requirement can be provided, 360-degree illumination can be provided, and the use range of the flashlight is enlarged.
Description
Technical Field
The embodiment of the invention relates to the technical field of illumination, in particular to a flashlight.
Background
When many people explore or outdoor activities, can receive the restriction of environment, can't use group's activity lighting methods at night such as bonfire, the flashlight only can provide the illumination that satisfies in the range requirement, can't provide floodlight support on a large scale, consequently can't satisfy the needs of illumination on a large scale.
Disclosure of Invention
The invention provides a flashlight, which can provide illumination meeting the range requirement, can provide illumination of 360 degrees, and increases the application range of the flashlight.
The embodiment of the invention provides a flashlight which comprises a lamp bead, a floodlight strip, a signal input unit, a control unit, a first lamp control unit and a second lamp control unit, wherein the floodlight strip is arranged on the floodlight strip;
the signal input unit is connected with the control unit, the signal input unit is used for providing a starting signal for the control unit, a first output end of the control unit is connected with the first lamp control unit, a second output end of the control unit is connected with the second lamp control unit, and the control unit is used for outputting a first lamp control signal and a second lamp control signal according to the starting signal; the first lamp control unit is connected with the lamp beads, and the second lamp control unit is connected with the floodlight strip; the first lamp control unit is used for controlling the state of the lamp beads according to the first lamp control signals, and the second lamp control unit is used for controlling the state of the floodlight strip according to the second lamp control signals; wherein, one at most in lamp pearl and the floodlight area is luminous.
Optionally, the first lamp control unit includes a first constant current driving subunit and a first switching tube;
the input end of the first constant current driving subunit is connected with the first output end of the control unit, the output end of the first constant current driving subunit is connected with the control electrode of the first switch tube, the first electrode of the first switch tube is connected with the negative electrode of the power supply, the negative electrode of the power supply is connected with the ground end, the second electrode of the first switch tube is connected with the negative electrode of the lamp bead, and the positive electrode of the lamp bead is connected with the positive electrode of the power supply.
Optionally, the second lamp control unit includes a second constant current driving subunit and a second switching tube;
the input end of the second constant-current driving subunit is connected with the second output end of the control unit, the output end of the second constant-current driving subunit is connected with the control electrode of the second switch tube, the first electrode of the second switch tube is connected with the negative electrode of the power supply, the negative electrode of the power supply is connected with the ground end, the second electrode of the second switch tube is connected with the negative electrode of the floodlight strip, and the positive electrode of the floodlight strip is connected with the positive electrode of the power supply.
Optionally, the first switching tube and the second switching tube are N-type transistors; at most one of the first lamp control signal and the second lamp control signal is high.
Optionally, the flashlight further comprises a voltage regulator tube, a first end of the voltage regulator tube is connected with the ground end, and a second end of the voltage regulator tube is connected with the power input end of the first lamp control unit and/or the power input end of the second lamp control unit.
Optionally, the signal input unit comprises a switch key; the first end of the switch key is connected with the negative pole of the power supply, the negative pole of the power supply is connected with the ground end, and the second end of the switch key is connected with the input end of the control unit.
Optionally, the flashlight further comprises a connection terminal; the input end of the connecting terminal is connected with the positive pole of the power supply, the output end of the connecting terminal is connected with the power supply input end of the control unit, and the grounding end of the connecting terminal is connected with the ground end.
Optionally, the flashlight further comprises a light head;
the lamp bead sets up in the lamp holder, and floodlight area sets up in the surface of lamp holder around the lamp holder.
Optionally, the flashlight further comprises a lamp handle, and at least part of the floodlight strip is arranged at one end of the lamp holder far away from the lamp handle and is arranged at the edge of the lamp holder around the axial direction of the lamp handle.
Optionally, the floodlight strip is arranged in a plurality of circles around the lamp head, wherein one circle of the floodlight strip is arranged at the edge of the lamp head, and the other circle of the floodlight strip is arranged at the junction of the lamp head and the lamp handle.
According to the flashlight, the control unit of the flashlight can output the first lamp control signal and the second lamp control signal according to the starting signal, the first lamp control unit controls the on-off of the lamp bead according to the first lamp control signal, the second lamp control unit controls the on-off of the floodlight strip according to the second lamp control signal, and one of the lamp bead and the floodlight strip is in a light-emitting state, so that the flashlight can provide illumination meeting the requirement of a range and can also provide illumination at 360 degrees, the flashlight can be used as an illumination tool such as a bonfire or a torch and the like, and the use range of the flashlight is enlarged.
Drawings
FIG. 1 is a schematic diagram of a circuit configuration of a flashlight according to an embodiment of the present invention;
FIG. 2 is a circuit diagram of a flashlight provided by an embodiment of the present invention;
fig. 3 is a schematic structural diagram of another flashlight provided by the embodiment of the invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Fig. 1 is a schematic circuit structure diagram of a flashlight provided in an embodiment of the present invention, and referring to fig. 1, the flashlight includes a lamp bead 10, a floodlight strip 20, a signal input unit 30, a control unit 40, a first light control unit 50, and a second light control unit 60. The signal input unit 30 is connected with the control unit 40, the signal input unit 30 is used for providing a starting signal for the control unit 40, a first output end of the control unit 40 is connected with the first lamp control unit 50, a second output end of the control unit 40 is connected with the second lamp control unit 60, and the control unit 40 is used for outputting the first lamp control signal and the second lamp control signal according to the starting signal; the first lamp control unit 50 is connected with the lamp bead 10, and the second lamp control unit 60 is connected with the floodlight strip 20; the first lamp control unit 50 is used for controlling the state of the lamp bead 10 according to the first lamp control signal, and the second lamp control unit 60 is used for controlling the state of the floodlight strip 20 according to the second lamp control signal; wherein at most one of the lamp bead 10 and the floodlight strip 20 emits light.
Specifically, signal input unit 30 is used for providing the enabling signal, and the control unit 40 can be according to enabling signal output first lamp accuse signal and second lamp accuse signal, and first lamp accuse unit 50 can be according to the bright of first lamp accuse signal control lamp pearl 10 and go out, and second lamp accuse unit 60 can be according to the bright of second lamp accuse signal control floodlight area 20 and go out to can realize the bright of lamp pearl 10 and floodlight area 20 according to the enabling signal. When the lamp bead 10 is in a bright state, the lamp bead 10 can provide light rays with a far range, so that the flashlight can provide illumination meeting the range requirement. When floodlight strip 20 is bright state, floodlight strip 20 can provide 360 degrees light for the flashlight can provide 360 degrees illumination, and the flashlight can use as illuminating tools such as bonfire or firebrand this moment. Therefore, the control unit 40 can control one of the lamp beads 10 and the floodlight strip 20 to emit light according to the starting signal provided by the signal input unit 30, so that the application range of the flashlight can be increased.
Exemplarily, the control unit 40 may output the first lamp control signal and the second lamp control signal according to the input times of the start signal, when the signal input unit 30 outputs the start signal for the first time, the control unit 40 may output the first lamp control signal and the second lamp control signal according to the start signal, the first lamp control unit 50 controls the lamp bead 10 to be in a bright state according to the first lamp control signal at this time, the second lamp control unit 60 controls the floodlight strip 20 to be in a dark state according to the second lamp control signal, and the flashlight provides illumination meeting the range requirement. When the signal input unit 30 outputs the start signal for the second time, the control unit 40 can output the first lamp control signal and the second lamp control signal according to the start signal, the first lamp control unit 50 controls the lamp bead 10 to be in a extinguished state according to the first lamp control signal at the moment, the second lamp control unit 60 controls the floodlight strip 20 to be in a bright state according to the second lamp control signal, and the flashlight provides 360-degree illumination and is used as illumination tools such as bonfire or a torch. When the signal input unit 30 outputs the start signal for the third time, the control unit 40 can output the first lamp control signal and the second lamp control signal according to the start signal, the first lamp control unit 50 controls the lamp bead 10 to be in the off state according to the first lamp control signal at the moment, the second lamp control unit 60 controls the floodlight strip 20 to be in the off state according to the second lamp control signal, and the flashlight does not work. And then sequentially circulating to realize that the flashlight provides different lighting schemes.
In other embodiments, the lamp bead 10 and the floodlight strip 20 can also be set to emit light simultaneously, at this time, the first light control unit 50 controls the lamp bead 10 to emit light according to the first light control signal, and the second light control unit 60 controls the floodlight strip 20 to emit light according to the second light control signal, so as to further increase the lighting scheme of the flashlight.
Alternatively, the control unit 40 may include a chip SN2711, a pin 1 of the control unit 40 is connected to a positive electrode of a power supply through the signal input unit 30, the flashlight is powered by the power supply (for example, the power supply may be a battery), a pin 3 of the control unit 40 is connected to a negative electrode of the power supply through a resistor, a pin 5 of the control unit 40 is connected to a negative electrode of the power supply through a resistor, a pin 8 of the control unit 40 is connected to a negative electrode of the power supply through a resistor, a pin 6 of the control unit 40 is suspended, a pin 4 of the control unit 40 is a first output terminal of the control unit 40 and outputs a first lamp control signal, and a pin 7 of the control unit 40 is a second output terminal of the control unit 40 and outputs a second lamp control signal. The first lamp control unit 50 is connected with the lamp bead 10, the first lamp control unit 50 controls the lamp bead 10 to emit light or extinguish, the second lamp control unit 60 is connected with the floodlight strip 20, and the second lamp control unit 60 controls the floodlight strip 20 to emit light or extinguish.
The embodiment of the invention has the beneficial effects that: the control unit can be according to first lamp accuse signal of start signal output and second lamp accuse signal, the bright of first lamp accuse signal control lamp pearl of first lamp accuse unit is gone out, the bright of floodlight area of second lamp accuse signal control is gone out to the second lamp accuse unit, make one in lamp pearl and floodlight area be in luminous state, thereby make the flashlight both can provide the illumination that satisfies the range requirement, can also supply 360 degrees illumination, make the flashlight use as illuminating tool such as bonfire or firebrand, thereby the application range of flashlight has been increased.
Fig. 2 is a circuit diagram of a flashlight provided by an embodiment of the present invention, referring to fig. 2, optionally, the first lamp control unit 50 includes a first constant current driving subunit 501 and a first switch Q1; the input end of the first constant current driving subunit 501 is connected with the first output end of the control unit 40, the output end of the first constant current driving subunit 501 is connected with the control electrode of the first switch tube Q1, the first electrode of the first switch tube Q1 is connected with the negative electrode of the power supply, the negative electrode of the power supply is connected with the ground end, the second electrode of the first switch tube Q1 is connected with the negative electrode of the lamp bead 10, and the positive electrode of the lamp bead 10 is connected with the positive electrode of the power supply.
Specifically, the first constant current driving subunit 501 may control the first switching tube Q1 to be turned on or off according to the first lamp control signal. When the first switch tube Q1 is turned on, the power supply, the lamp bead 10, the first switch tube Q1 and the resistor connected in series between the power supply and the first switch tube Q1 form a loop, and the lamp bead 10 emits light under the action of the power supply. When the first switch tube Q1 is turned off, the loop where the lamp bead 10 is located is turned off through the first switch tube Q1, and at this time, the lamp bead 10 is turned off.
Illustratively, the first constant current driving sub-unit 501 may include a chip SOT23-5, a pin 1 of the first chip SOT23-5-1 is connected to the negative electrode of the power supply, a pin 5 of the first chip SOT23-5-1 is connected to a first output terminal of the control unit 40, the first chip SOT23-5-1 is connected with the positive electrode of a power supply through a resistor, the first chip SOT23-5-1 is connected with the output end of the first constant current driving subunit 501 through a pin 4, the first chip SOT23-5-1 is connected with the control end of the first switch tube Q1 through a resistor, the first chip SOT23-5-1 is connected with the negative electrode of the power supply through a pin 2 and the second switch tube Q1 through a resistor, the first switch tube Q1 is connected with the negative electrode of the lamp bead 10 through a first pole, and the positive electrode of the lamp bead 10 is connected with the positive electrode of the power supply.
With continued reference to fig. 2, optionally, the second lamp control unit 60 includes a second constant current driving subunit 602 and a second switching tube Q2; the input end of the second constant current driving subunit 602 is connected to the second output end of the control unit 40, the output end of the second constant current driving subunit 602 is connected to the control electrode of the second switch tube Q2, the first electrode of the second switch tube Q2 is connected to the negative electrode of the power supply, the negative electrode of the power supply is connected to the ground end, the second electrode of the second switch tube Q2 is connected to the negative electrode of the floodlight strip 20, and the positive electrode of the floodlight strip 20 is connected to the positive electrode of the power supply.
Specifically, the second constant current driving subunit 602 may control the second switching transistor Q2 to be turned on or off according to the second lamp control signal. When the second switch tube Q2 is turned on, the power supply, the floodlight strip 20, the second switch tube Q2 and the resistor connected in series between the power supply and the second switch tube Q2 form a loop, and the floodlight strip 20 emits light under the action of the power supply. When the second switch tube Q2 is turned off, the circuit in which the floodlight strip 20 is located is disconnected by the second switch tube Q2, and the floodlight strip 20 is extinguished.
Illustratively, the second constant current driving subunit 602 may include a chip SOT 23-5. Pin 1 of the second chip SOT23-5-2 is connected to the negative electrode of the power supply, pin 5 of the second chip SOT23-5-2 is connected to the second output terminal of the control unit 40 and is used for receiving signals of the control unit 40, pin 3 of the second chip SOT23-5-2 is connected to the positive electrode of the power supply through a resistor, pin 4 of the second chip SOT23-5-2 is the output terminal of the second constant current driving subunit 602, pin 4 of the second chip SOT23-5-2 is connected to the control terminal of the second switch tube Q2, pin 2 of the second chip SOT23-5-2 and the second terminal of the second switch tube Q2 are connected to the negative electrode of the power supply through a resistor, the first terminal of the second switch tube Q2 is connected to the second terminal of the lamp strip 20, and the first terminal of the lamp strip 20 is connected to the positive electrode of the power supply.
With continued reference to fig. 2, optionally, the first switching transistor Q1 and the second switching transistor Q2 are N-type transistors; at most one of the first lamp control signal and the second lamp control signal is high.
Specifically, fig. 2 exemplarily shows that the first switching transistor Q1 and the second switching transistor Q2 are N-type transistors, the first switching transistor Q1 is turned on when the first constant current driving subunit 501 can output a high level according to the first lamp control signal, and the first switching transistor Q1 is turned off when the first constant current driving subunit 501 can output a low level according to the first lamp control signal. Similarly, when the second constant current driving subunit 502 can output a high level according to the second lamp control signal, the second switching transistor Q2 is turned on, and when the second constant current driving subunit 502 can output a low level according to the second lamp control signal, the second switching transistor Q2 is turned off. In the working process of the flashlight, when the signal input unit 30 outputs a starting signal for the first time, the control unit 40 can output a first lamp control signal and a second lamp control signal according to the starting signal, at the moment, the first constant current driving subunit 501 outputs a high level according to the first lamp control signal, the first switch tube Q1 is controlled to be switched on, the lamp bead 10 is in a bright state, the second constant current driving subunit 502 outputs a low level according to the second lamp control signal, the second switch tube Q2 is controlled to be switched off, the floodlight strip 20 is in a dead state, and the flashlight provides illumination meeting the requirement of a range. When the signal input unit 30 outputs the start signal for the second time, the control unit 40 can output the first lamp control signal and the second lamp control signal according to the start signal, at this time, the first constant current driving subunit 501 outputs the low level according to the first lamp control signal, the first switch tube Q1 is controlled to be cut off, the lamp bead 10 is in the off state, the second constant current driving subunit 502 outputs the high level according to the second lamp control signal, the second switch tube Q2 is controlled to be switched on, the floodlight strip 20 is in the on state, the flashlight provides 360-degree illumination, and the flashlight is used as illumination tools such as bonfire or a torch. When the signal input unit 30 outputs the start signal for the third time, the control unit 40 can output the first lamp control signal and the second lamp control signal according to the start signal, at this time, the first constant current driving subunit 501 outputs a low level according to the first lamp control signal, controls the first switch tube Q1 to be cut off, and the lamp bead 10 is in a extinguished state, and the second constant current driving subunit 502 outputs a low level according to the second lamp control signal, controls the second switch tube Q2 to be cut off, and the floodlight strip 20 is in an extinguished state, and does not operate the flashlight.
It should be noted that, in other embodiments, the first switch Q1 and the second switch Q2 may also be P-type transistors, in which case, when the first constant current driving subunit 501 can output a low level according to the first lamp control signal, the first switch Q1 is turned on, and when the first constant current driving subunit 501 can output a high level according to the first lamp control signal, the first switch Q1 is turned off. Similarly, when the second constant current driving subunit 502 can output a low level according to the second lamp control signal, the second switching transistor Q2 is turned on, and when the second constant current driving subunit 502 can output a high level according to the second lamp control signal, the second switching transistor Q2 is turned off. The specific operation of the flashlight is similar to the above process and will not be described herein.
Optionally, the flashlight further comprises a voltage regulator tube, a first end of the voltage regulator tube is connected to ground, and a second end of the voltage regulator tube is connected to the power input end of the first lamp control unit 50 and/or the power input end of the second lamp control unit 60.
Specifically, fig. 2 exemplarily shows that the flashlight includes two voltage regulators, namely a first voltage regulator D1 and a second voltage regulator D2, a first terminal of the first voltage regulator D1 is connected to a negative electrode of a power supply, a second terminal of the first voltage regulator D1 is connected to a power supply input terminal of the first lamp control unit 50, and the first voltage regulator D1 is configured to provide a stable voltage for the first lamp control unit 50. The first end of the second voltage regulator tube D2 is connected to the negative electrode of the power supply, the second end of the second voltage regulator tube D2 is connected to the power supply input end of the second lamp control unit 60, and the second voltage regulator tube D2 is used for providing stable voltage for the second lamp control unit 60. Illustratively, the first regulator D1 provides a stable voltage for the first lamp control unit 50, which may be 4.7V, and the second regulator D2 provides a stable voltage for the second lamp control unit 60, which may be 4.7V.
Fig. 3 is a schematic structural diagram of another flashlight provided by the embodiment of the present invention, and based on the above embodiments, in combination with fig. 2 and fig. 3, optionally, the signal input unit 30 includes a switch button S1; the first terminal of the switch button S1 is connected to the negative terminal of the power supply, the negative terminal of the power supply is connected to ground, and the second terminal of the switch button S1 is connected to the input terminal of the control unit 40.
Specifically, the control unit 40 may output the first light control signal and the second light control signal cyclically according to the input times of the switch key S1, for example, when the switch key S1 is pressed and closed for the first time, the control unit 40 may output the first light control signal and the second light control signal according to the start signal, the first light control unit 50 controls the lamp bead 10 to be in the on state according to the first light control signal at this time, the second light control unit 60 controls the floodlight strip 20 to be in the off state according to the second light control signal, and the flashlight provides illumination meeting the range requirement. When the switch button S1 is pressed and closed for the second time, the control unit 40 can output the first lamp control signal and the second lamp control signal according to the start signal, the first lamp control unit 50 controls the lamp bead 10 to be in a extinguished state according to the first lamp control signal at this time, the second lamp control unit 60 controls the floodlight strip 20 to be in a bright state according to the second lamp control signal, and the flashlight provides 360-degree illumination and is used as an illumination tool such as a bonfire or a torch. When the switch button S1 is pressed down to be turned off for the third time, the control unit 40 can output the first lamp control signal and the second lamp control signal according to the start signal, the first lamp control unit 50 controls the lamp bead 10 to be in the off state according to the first lamp control signal at this time, the second lamp control unit 60 controls the floodlight strip 20 to be in the off state according to the second lamp control signal, and the flashlight does not work. And then sequentially circulating to realize that the flashlight provides different lighting schemes.
With continued reference to fig. 2 and 3, optionally, the flashlight further includes a connection terminal 11; the input terminal of the connection terminal 11 is connected to the positive terminal of the power supply, the output terminal of the connection terminal 11 is connected to the power supply input terminal of the control unit 40, and the ground terminal of the connection terminal 11 is connected to the ground terminal.
In particular, the connection terminal 11 is located inside the flashlight, which facilitates connection of the power source to the flashlight.
With continued reference to fig. 2 and 3, optionally, a flashlight provided by an embodiment of the present invention further includes a light head 12; the lamp beads 10 are arranged in the lamp head 12, and the floodlight strip 20 is arranged on the outer surface of the lamp head 12 around the lamp head 12.
Specifically, the lamp bead 10 is disposed in the lamp head 12, and the lamp head 12 may be horn-shaped, for example. The lamp holder 12 can adjust the light direction that the lamp pearl 10 sent, plays the effect of spotlight, and the flashlight can provide the light of certain range, provides the illumination that satisfies the range requirement. The floodlight strip 20 is arranged on the outer surface of the lamp head 12 around the lamp head 12, and when the floodlight strip 20 emits light, a large-range floodlight support can be provided, so that the floodlight strip can be used as a lighting tool such as a bonfire or a torch.
With continued reference to fig. 2 and 3, the flashlight optionally further includes a handle 13, and at least a portion of the floodlight strip 20 is disposed at an end of the base 12 remote from the handle 13 and at an edge of the base 12 about an axis of the handle 13.
Specifically, the control circuit and the power supply of the flashlight are installed in the lamp handle 13, the switch button S1 is installed outside the lamp handle 13, and the lamp handle 13 is used for protecting the control circuit of the flashlight and providing a support structure.
With continued reference to fig. 2 and 3, optionally, the floodlight strip 20 is provided in a plurality of turns around the lamp head 12, wherein one turn of the floodlight strip 20 is provided at the edge of the lamp head 12 and another turn of the floodlight strip 20 is provided at the intersection of the lamp head 12 and the handle 13.
Specifically, floodlight strip 20 is provided with many circles, and the increase of floodlight strip 20 can increase the range of floodlight support.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (10)
1. A flashlight is characterized by comprising a lamp bead, a floodlight strip, a signal input unit, a control unit, a first lamp control unit and a second lamp control unit;
the signal input unit is connected with the control unit, the signal input unit is used for providing a starting signal for the control unit, a first output end of the control unit is connected with the first lamp control unit, a second output end of the control unit is connected with the second lamp control unit, and the control unit is used for outputting a first lamp control signal and a second lamp control signal according to the starting signal; the first lamp control unit is connected with the lamp beads, and the second lamp control unit is connected with the floodlight strip; the first lamp control unit is used for controlling the state of the lamp bead according to the first lamp control signal, and the second lamp control unit is used for controlling the state of the floodlight strip according to the second lamp control signal; wherein at most one of the lamp bead and the floodlight strip emits light.
2. The flashlight of claim 1, wherein the first lamp control unit comprises a first constant current driving subunit and a first switching tube;
the input end of the first constant current driving subunit is connected with the first output end of the control unit, the output end of the first constant current driving subunit is connected with the control electrode of the first switch tube, the first electrode of the first switch tube is connected with the negative electrode of the power supply, the negative electrode of the power supply is connected with the ground end, the second electrode of the first switch tube is connected with the negative electrode of the lamp bead, and the positive electrode of the lamp bead is connected with the positive electrode of the power supply.
3. The flashlight of claim 2, wherein the second lamp control unit comprises a second constant current driving subunit and a second switching tube;
the input end of the second constant-current driving subunit is connected with the second output end of the control unit, the output end of the second constant-current driving subunit is connected with the control electrode of the second switch tube, the first electrode of the second switch tube is connected with the negative electrode of the power supply, the negative electrode of the power supply is connected with the ground end, the second electrode of the second switch tube is connected with the negative electrode of the floodlight strip, and the positive electrode of the floodlight strip is connected with the positive electrode of the power supply.
4. The flashlight of claim 3, wherein the first and second switching tubes are N-type transistors; at most one of the first lamp control signal and the second lamp control signal is at a high level.
5. The flashlight of any one of claims 1 to 4, further comprising a voltage regulator tube, wherein a first end of the voltage regulator tube is connected to ground, and a second end of the voltage regulator tube is connected to the power input terminal of the first lamp control unit and/or the power input terminal of the second lamp control unit.
6. The flashlight of any one of claims 1-4, wherein the signal input unit comprises a switch button; the first end of the switch key is connected with the negative electrode of the power supply, the negative electrode of the power supply is connected with the ground end, and the second end of the switch key is connected with the input end of the control unit.
7. The flashlight of claim 6, further comprising a connection terminal; the input end of the connecting terminal is connected with the positive pole of the power supply, the output end of the connecting terminal is connected with the power supply input end of the control unit, and the grounding end of the connecting terminal is connected with the ground end.
8. The flashlight of any of claims 1-4, further comprising a light head;
the lamp beads are arranged in the lamp holder, and the floodlight strip is arranged on the outer surface of the lamp holder around the lamp holder.
9. The flashlight of claim 8, further comprising a handle, wherein at least a portion of the floodlight strip is disposed at an end of the lamp head away from the handle and is disposed at an edge of the lamp head around an axis of the handle.
10. The flashlight of claim 9, wherein the flood light strip is provided in a plurality of turns around the light head, wherein one turn of the flood light strip is provided at an edge of the light head and another turn of the flood light strip is provided at an intersection of the light head and the handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111459610.4A CN114173454A (en) | 2021-12-02 | 2021-12-02 | Electric torch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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