CN210624209U - Head lamp - Google Patents
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- CN210624209U CN210624209U CN201920819305.3U CN201920819305U CN210624209U CN 210624209 U CN210624209 U CN 210624209U CN 201920819305 U CN201920819305 U CN 201920819305U CN 210624209 U CN210624209 U CN 210624209U
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Abstract
The utility model is suitable for a photoelectric technology field provides a headlight, including the lamp body, set up in the luminescent light of lamp body front end, set up in photosensitive sensor on the lamp body lateral wall, set up in MCU in the lamp body, set up in power in the lamp body, set up in the power with switch tube on the electric connecting wire of luminescent light and set up in the reflex reflector of lamp body rear end. The embodiment of the utility model provides a through set up the photosensitive sensor feedback surrounding environment condition on the lamp body lateral wall, the intensity of adjusting the luminescent light according to the surrounding environment condition through MCU again realizes the automatically regulated headlight of headlight to liberation user's both hands are through being provided with reflex reflector at the lamp body rear end again, and the suggestion rear makes the people at rear can accurately judge and the headlight user between the distance, thereby improves the security of work at night.
Description
Technical Field
The utility model belongs to the technical field of the photoelectricity, especially, relate to a headlight.
Background
The head lamp is a lamp worn on the head, and as an electric tool, the head lamp also expands the time and space in which people can work while freeing hands, and gradually becomes an important device indispensable to daily life and work of people.
The traditional head lamp is fixed in strength, and has the function of regulating the brightness, and the step speed regulation is carried out, for example, the switching is carried out according to the sequence of turning on the lamp, weak light, strong light and turning off the lamp. This entails the drawback that the user still needs to adjust the brightness of the lamp by hand, which in some cases is inconvenient, or even not allowed, and runs counter to the original design of the headlamp which frees up both hands. And current headlight can only shine the scene in user the place ahead in the use, can't indicate the rear, leads to the people in user's rear to judge the distance with the user accurately.
SUMMERY OF THE UTILITY MODEL
The utility model provides a head lamp aims at solving the problem at headlight automatically regulated luminance and suggestion rear.
The utility model relates to a realize like this, a headlight, which comprises a lamp body, the headlight still includes:
the light-emitting lamp is arranged at the front end of the lamp body;
the photosensitive sensor is arranged on the outer side wall of the lamp body;
the signal output end of the photosensitive sensor is connected with the MCU;
the power supply is arranged in the lamp body and provides electric energy for the light-emitting lamp and the MCU;
the switch tube is arranged on an electric connecting wire of the power supply and the luminescent lamp, and a control electrode of the switch tube is connected with the MCU; and
and the reflecting device is arranged at the rear end of the lamp body.
Furthermore, the reflecting device comprises a reflecting film attached to the outer side wall of the rear end of the lamp body.
Furthermore, photosensitive sensors are arranged at the front end and two sides of the lamp body.
Further, the light emitting lamp is an LED lamp.
Further, the power source is a battery and a storage battery.
Furthermore, a telescopic belt is arranged on the lamp body.
Furthermore, the switch tube is a triode or a MOS tube.
Further, power, luminescent light, MCU, photosensitive sensor and switch tube set up in headlight drive circuit, drive circuit still includes first resistance and first inductance, the drain electrode of switch tube is connected to the positive terminal of power, the source electrode of switch tube passes through first resistance is connected to the one end of luminescent light, the other end of luminescent light is connected to the negative pole end of power, first inductance with the luminescent light is parallelly connected, the control utmost point of switch tube is connected to MCU, photosensitive sensor's signal output part with MCU connects.
The utility model discloses beneficial effect who reaches, the embodiment of the utility model provides a through set up the photosensitive sensor feedback surrounding environment condition on the lamp body lateral wall, the strength of passing through MCU regulation luminescent light according to the surrounding environment condition again realizes the automatically regulated headlight of headlight to liberation user's both hands are provided with reflex reflector through being provided with at the lamp body rear end again, the suggestion rear, make the people at rear can accurately judge and the headlight distance between the user, thereby improve the security of work at night.
Drawings
Fig. 1 is a schematic structural diagram of a head lamp provided by the present invention;
fig. 2 is a schematic structural view of the rear end of a lamp body of a headlamp provided by the present invention;
fig. 3 is a schematic diagram of a specific circuit structure of a driving circuit of a headlamp provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the utility model provides a through set up the photosensitive sensor feedback surrounding environment condition on the lamp body lateral wall, the intensity of adjusting the luminescent light according to the surrounding environment condition through MCU again realizes the automatically regulated headlight of headlight to liberation user's both hands are through being provided with reflex reflector at the lamp body rear end again, and the suggestion rear makes the people at rear can accurately judge and the headlight user between the distance, thereby improves the security of work at night.
Example one
A headlamp comprising a lamp body 1, the headlamp further comprising:
a luminescent lamp 2 arranged at the front end of the lamp body 1;
a photosensitive sensor 3 disposed on an outer sidewall of the lamp body 1;
the signal output end of the photosensitive sensor 3 is connected with the MCU;
the power supply is arranged in the lamp body 1 and supplies electric energy to the luminescent lamp 2 and the MCU;
the switch tube 8 is arranged on an electric connecting wire of the power supply and the luminescent lamp 2, and a control electrode of the switch tube 8 is connected with the MCU; and
and the reflecting device is arranged at the rear end of the lamp body 1.
In the implementation, the head lamp comprises a lamp body 1, and a luminescent lamp 2 is arranged at the front end of the lamp body 1; the photosensitive sensors 3 are respectively arranged below, on the left side and on the right side of the light-emitting lamp 2, the photosensitive sensors 3 are used for detecting the intensity of light reflected by an object irradiated by the light-emitting lamp 2, and the brightness of the light-emitting lamp 2 is linearly adjusted according to the intensity. The MCU (Microcontroller Unit) is a micro control Unit, also called a single chip, which appropriately reduces the frequency and specification of a Central Processing Unit (CPU), and integrates peripheral interfaces such as a memory, a counter (Timer), a USB, an a/D converter, a UART, a PLC, a DMA, and even an LCD driving circuit on a single chip to form a chip-level computer, which performs different combination control for different applications. When implementing, the utility model provides a MCU can adopt the common singlechip on the market, for example 8031, 8051, 8751, 8951, 97C51 etc. can satisfy according to photosensitive sensor 3's output signal and through PWM (Pulse-width modulation) mode control switch tube 8 to the power supply voltage chop the chip of the function of adjusting the luminance of luminescent lamp 2 can.
In an optional embodiment, a power switch 4 is disposed on the lamp body 1, the power switch 4 is used for controlling the on-off state of the headlamp, photosensitive sensors 3 are disposed at the front end and both sides of the lamp body 1, when in implementation, the number of the photosensitive sensors 3 is at least 3, and the photosensitive sensors 3 are respectively disposed at the front end, the left end and the right end of the lamp body 1, so that the detection sensitivity and the accuracy of the brightness can be effectively improved by respectively disposing the photosensitive sensors 3 at the front end, the left end and the right end of the lamp body 1. The switch tube 8 is a triode or an MOS tube. The luminescent lamp 2 is an LED lamp, and an LED (Light Emitting Diode) is a solid semiconductor device capable of converting electric energy into visible Light, and can directly convert electricity into Light, and the LED lamp can directly emit red, yellow, blue, green, cyan, orange, purple and white Light, so that a user can select different colors according to different requirements, and moreover, the LED is used as the luminescent lamp 2, so that the energy consumption of the LED is low, and the production cost and the use cost can be effectively reduced. The power supply is a battery or a storage battery and can provide electric energy for each electric unit in the head lamp, the power supply provides electric energy for the luminescent lamp 2 and the MCU, when the lighting lamp is implemented, the power supply can adopt a rechargeable battery, and the head lamp is provided with a charging interface (not shown in the figure), and the charging interface is connected with the MCU so as to charge the rechargeable battery.
When the LED lamp is used, when a user wears the head lamp and is positioned in a narrow space, the brightness of light reflected by the light-emitting lamp 2 is high, or when the user wears the head lamp and is positioned in a space with certain environment brightness, the light-sensitive sensor 3 detects that light is high, and the MCU reduces the voltage at two ends of the light-emitting lamp 2 according to the signal of the light-sensitive sensor 3, so that the brightness of the light-emitting lamp 2 is reduced; similarly, when the user wears the headlight and is in the place of relative space broad, the luminance that the luminescent lamp 2 reflected back is less strong, perhaps when the user wears the headlight and is in the darker space of environment, and photosensitive sensor 3 detects light darker, and MCU is according to photosensitive sensor 3's signal, increases the voltage at 2 both ends of luminescent lamp for 2 luminance of luminescent lamp increase.
Additionally, the utility model discloses a headlight is still provided with reflex reflector in 1 rear end of lamp body, specifically, and reflex reflector sets up in 1 rear end upper portion of lamp body, and the user wears the headlight at overhead back, and reflex reflector is located on the user's head. For example, the light reflecting means comprises a mirror. In an optional embodiment, the light reflecting device may further be provided with an adjusting mechanism, the adjusting mechanism is used for connecting the reflective mirror and the lamp body 1 to adjust the position and the reflection angle of the reflective mirror, when in implementation, the adjusting mechanism may adopt a universal ball structure, the universal ball structure includes a support rod and a universal ball, wherein the support rod is disposed on the lamp body 1, the reflective mirror is connected with the universal ball, the angle of the reflective mirror can be adjusted by rotating the angle of the universal ball and the support rod, of course, the adjusting mechanism may also adopt an elastic support rod, the elastic support rod has a certain deformation capability, that is, the elastic support rod can deform within a preset range, the reflective mirror is connected to the lamp body 1 through the elastic support rod, the position and the angle of the reflective mirror can be adjusted by.
This embodiment is through being provided with photosensitive sensor 3 in 1 front end both sides of lamp body, can be through perception environmental brightness, especially come the luminance of linear regulation luminescent light 2 through the power of the light that detects the light irradiation that luminescent light 2 sent and reflect back behind the object, moreover, the steam generator is simple in structure, and is practical, do not need user manual regulation light luminance, liberation user's that can furthest both hands, in addition, through being provided with reflex reflector at 1 rear end of lamp body, the suggestion rear, make the people at rear can the accurate distance between judgement and the headlight user, thereby improve the security of work night.
In an optional embodiment, the number of the luminescent lamps 2 is at least 1, and the luminescent lamps 2 are provided with a plurality of luminescent lamps (for example, 2, 3 or 5), so that on one hand, the overall brightness of the headlamp can be effectively improved, on the other hand, when any one luminescent lamp 2 is damaged and cannot emit light, the rest luminescent lamps 2 can still normally work to emit light, the practicability is high, and the user experience can be effectively improved.
Example two
In an alternative embodiment, the light reflecting means includes a light reflecting film attached to the outer side wall of the rear end of the lamp body 1. When the headlamp is worn on the head of a user, the front end of the lamp body 1 is provided with the light-emitting lamp 2 which can illuminate the front of the user. And the reflecting device adopts a reflecting film, so that the volume occupied by the sightseeing device can be reduced, and the production cost of the head lamp can be effectively reduced.
EXAMPLE III
In an alternative embodiment, as shown in fig. 2, the lamp body 1 is provided with a retractable belt 6, the retractable belt 6 can be freely retracted in the length direction, and the user can conveniently wear and fix the headlamp on the head or at other positions through the retracting function of the retractable belt 6, in one embodiment, the retractable belt 6 can be a strip or an annulus, taking the strip as an example, two ends of the retractable belt 6 are respectively and fixedly installed on the lamp body 1, and when in use, the user only needs to stretch the retractable belt 6 and sleeve the retractable belt on the head; in addition, when the expansion band 6 is an endless band, the lamp body 1 is further provided with a buckle 5, the buckle 5 is provided with a clamping hole for the expansion band 6 to pass through and fasten the expansion band 6, the buckle 5 is detachably connected with the lamp body 1, in an optional embodiment, the lamp body 1 comprises a rear shell 7, for example, a clamping block is arranged on the buckle 5, a bayonet matched with the clamping block is arranged on the rear shell 7, and the buckle 5 can be detachably mounted on the lamp body 1 by embedding the clamping block into the bayonet, so that the disassembly and the use are convenient.
Example four
Referring to fig. 3, fig. 3 is a schematic circuit diagram of a driving circuit in a headlamp according to the present invention.
In an alternative embodiment, as shown in fig. 3, the power supply, the light emitting lamp 2, the MCU, the photosensor 3 and the switching tube 8 are disposed in a driving circuit of the headlamp, the driving circuit is a boost charge pump driving circuit, and further includes a first resistor R1 and a first inductor L1, a drain of the switching tube 8 is connected to a positive terminal of the power supply, a source of the switching tube 8 is connected to one terminal of the light emitting lamp 2 through the first resistor R1, another terminal of the light emitting lamp 2 is connected to a negative terminal of the power supply, the first inductor L1 is connected in parallel with the light emitting lamp 2, a control terminal of the switching tube 8 is connected to the MCU, and a signal output terminal of the photosensor 3 is connected to the MCU.
In implementation, the operating principle of the driving circuit is as follows: the light sensor 3 detects the light brightness of the surrounding environment, when a user wears the head lamp and is in a narrow space, the surrounding environment is a bright space or the brightness of the light reflected by the light emitting lamp 2 is high, the light sensor 3 detects the light is high, and the MCU reduces the voltage at two ends of the light emitting lamp 2 according to the signal of the light sensor 3, so that the brightness of the light emitting lamp 2 is reduced; similarly, when the surrounding environment was when darker space or the user worn the headlight and was in the place of relative space broad, the luminance that luminescent lamp 2 reflected back was less strong, and photosensitive sensor 3 detected light darker, and MCU is according to photosensitive sensor 3's signal, increases the voltage at 2 both ends of luminescent lamp for 2 luminance increases of luminescent lamp. The brightness of the light does not need to be adjusted manually by a user, and the hands of the user can be liberated to the maximum extent. And, through being provided with reflex reflector at the lamp body rear end, the suggestion rear makes the people in rear can accurately judge the distance with the headlight user to improve the security of work at night.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (8)
1. A headlamp comprising a lamp body, characterized in that: the headlamp further includes:
the light-emitting lamp is arranged at the front end of the lamp body;
the photosensitive sensor is arranged on the outer side wall of the lamp body;
the signal output end of the photosensitive sensor is connected with the MCU;
the power supply is arranged in the lamp body and provides electric energy for the light-emitting lamp and the MCU;
the switch tube is arranged on an electric connecting wire of the power supply and the luminescent lamp, and a control electrode of the switch tube is connected with the MCU; and
and the reflecting device is arranged at the rear end of the lamp body.
2. The headlamp according to claim 1, wherein the reflector comprises a reflective film attached to an outer side wall of a rear end of the lamp body.
3. The headlamp according to claim 1, wherein photosensitive sensors are provided at the front end and both sides of the lamp body.
4. The headlamp according to claim 1, wherein the light emitting lamp is an LED lamp.
5. The headlamp of claim 1 wherein the power source is a battery and a secondary battery.
6. The headlamp according to claim 1, wherein a retractable band is provided on the lamp body.
7. The headlamp according to claim 1, wherein the switching tube is a triode or a MOS tube.
8. The headlamp according to any one of claims 1 to 7, wherein the power supply, the light emitting lamp, the MCU, the photosensor and the switching tube are provided in a headlamp driving circuit, the driving circuit further comprises a first resistor and a first inductor, a drain of the switching tube is connected to a positive terminal of the power supply, a source of the switching tube is connected to one terminal of the light emitting lamp through the first resistor, the other terminal of the light emitting lamp is connected to a negative terminal of the power supply, the first inductor is connected in parallel with the light emitting lamp, and a control terminal of the switching tube is connected to the MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920819305.3U CN210624209U (en) | 2019-05-31 | 2019-05-31 | Head lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920819305.3U CN210624209U (en) | 2019-05-31 | 2019-05-31 | Head lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210624209U true CN210624209U (en) | 2020-05-26 |
Family
ID=70748419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920819305.3U Active CN210624209U (en) | 2019-05-31 | 2019-05-31 | Head lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210624209U (en) |
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2019
- 2019-05-31 CN CN201920819305.3U patent/CN210624209U/en active Active
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