CN217587791U - Light-changing sunglasses driving circuit and light-changing sunglasses - Google Patents
Light-changing sunglasses driving circuit and light-changing sunglasses Download PDFInfo
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- CN217587791U CN217587791U CN202221670304.5U CN202221670304U CN217587791U CN 217587791 U CN217587791 U CN 217587791U CN 202221670304 U CN202221670304 U CN 202221670304U CN 217587791 U CN217587791 U CN 217587791U
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Abstract
The utility model discloses a become light sunglasses drive circuit and become light sunglasses. The circuit includes: the device comprises a charging unit, a charging conversion unit, a sliding distance detection unit and a PWM output unit; the charging unit is electrically connected with the charging conversion unit, the charging conversion unit is electrically connected with a power supply end of the PWM output unit, and the charging unit is used for outputting a preset voltage value to the charging change unit; the charging conversion unit is used for transforming the preset voltage value output by the charging unit and outputting the preset voltage value to the PWM output unit; the sliding distance detection unit is used for sensing the sliding distance and the sliding direction of the finger of the user; and the receiving end of the PWM output unit is electrically connected with the output end of the sliding distance detection unit and is used for outputting pulse voltage signals with different duty ratios to a driving plate of the light-changing sunglasses according to the sliding distance and the sliding direction so as to adjust the light transmittance of the light-changing sunglasses. This scheme has been realized adjusting the different luminosities of lens according to user's gliding distance of finger and slip direction to realize the regulation of many gears luminosities.
Description
Technical Field
The embodiment of the utility model provides a relate to sunglasses technique, especially relate to a become light sunglasses drive circuit and become light sunglasses.
Background
Sunglasses, also known as sun lenses, are used for shading sunlight. In the sunlight, the light flux is usually adjusted by adjusting the size of the pupil, and when the light intensity exceeds the adjusting capacity of the eyes, the eyes are injured. Therefore, in outdoor activity places, particularly in summer, sun-shading glasses are needed to shade sunlight so as to relieve fatigue caused by eye adjustment or damage caused by strong light stimulation.
The adjustment of the light transmittance of the existing sunglass lenses cannot realize multi-gear adjustment.
SUMMERY OF THE UTILITY MODEL
The utility model provides a become light sunglasses drive circuit and become light sunglasses to the realization is according to the different luminosities that the lens was adjusted to user's gliding distance of finger and slip direction, in order to realize the regulation of many gears luminosities.
In a first aspect, an embodiment of the present invention provides a light-variable sunglasses driving circuit, which includes: the device comprises a charging unit, a charging conversion unit, a sliding distance detection unit and a PWM output unit;
the charging unit is electrically connected with the charging conversion unit, the charging conversion unit is electrically connected with a power supply end of the PWM output unit, and the charging unit is used for outputting a preset voltage value to the charging conversion unit; the charging conversion unit is used for transforming the preset voltage value output by the charging unit and outputting the transformed preset voltage value to the PWM output unit;
the sliding distance detection unit is used for sensing the sliding distance and the sliding direction of the finger of the user;
and the receiving end of the PWM output unit is electrically connected with the output end of the sliding distance detection unit and is used for outputting pulse voltage signals with different duty ratios to a driving plate of the variable-light sunglasses according to the sliding distance and the sliding direction so as to adjust the light transmittance of the variable-light sunglasses.
Optionally, the device further comprises a hall switch; the Hall switch is electrically connected between the PWM output unit and the charging conversion unit,
and the Hall switch is used for controlling whether the charging conversion unit charges the PWM output unit or not according to whether the Hall switch is close to a magnetic object or not.
Optionally, the sliding distance detection unit includes a capacitive displacement sensor.
Optionally, the charging unit is electrically connected with an external power supply through a magnetic charging wire.
Optionally, the charging unit includes a charging light emitting diode and a charging chip;
the anode of the charging light-emitting diode is electrically connected with an external power supply, the cathode of the charging light-emitting diode is electrically connected with the input end of the charging chip, and the output end of the charging chip is electrically connected with the charging conversion unit.
In a second aspect, the present invention further provides a light-variable sunglasses including a frame and at least one light-variable lens; the glasses frame comprises a glasses leg part and a glasses frame part; the temple portion comprises the light-variable sunglasses driving circuit of the first aspect; the frame part is provided with a magnetic sheet.
Optionally, the darkening lens comprises a flexible liquid crystal darkening lens; the flexible liquid crystal dimming lens is electrically connected with the dimming sunglasses driving circuit through a flexible printed circuit board.
The embodiment of the utility model provides a, through the charging unit output preset voltage value to the conversion unit that charges; the charging conversion unit transforms the preset voltage value output by the charging unit and outputs the transformed preset voltage value to the PWM output unit, and the PWM output unit is normally started to work; the sliding distance and the sliding direction of the fingers of the user are sensed through the sliding distance detection unit; and the PWM output unit outputs pulse voltage signals with different duty ratios to a driving plate of the light-changing sunglasses according to the sliding distance and the sliding direction so as to adjust the light transmittance of the light-changing sunglasses, so that the adjustment of the light transmittance of the sunglasses at multiple gears is realized.
Drawings
Fig. 1 is a schematic structural diagram of a variable-light sunglasses driving circuit according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of another variable light sunglasses driving circuit provided in an embodiment of the present invention;
fig. 3 is an exploded view of a variable sunglass according to an embodiment of the present 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 to be construed as limiting 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 structural diagram of a variable light sunglasses driving circuit provided in an embodiment of the present invention, as shown in fig. 1, the driving circuit includes: a charging unit 10, a charging conversion unit 20, a sliding distance detection unit 30, and a PWM output unit 40; the charging unit 10 is electrically connected with the charging converting unit 20, the charging converting unit 20 is electrically connected with a power supply end of the PWM output unit 40, and the charging unit 10 is configured to output a preset voltage value to the charging converting unit 20; the charging conversion unit 20 is used for transforming the preset voltage value output by the charging unit 10 and outputting the transformed preset voltage value to the PWM output unit 40; a sliding distance detecting unit 30 for sensing a sliding distance and a sliding direction of a finger of a user; the receiving end of the PWM output unit 40 is electrically connected to the output end of the sliding distance detecting unit 30, and is configured to output pulse voltage signals with different duty ratios to a driving board of the light-variable sunglasses according to the sliding distance and the sliding direction, so as to adjust the light transmittance of the light-variable sunglasses.
The charging conversion unit 20 may be an LDO unit or a buck unit, and the charging unit 10 provides a normal start operating voltage for the PWM output unit through the charging conversion unit 20; the sliding distance detecting unit 30 may include a capacitive displacement sensor including a fixed plate and a movable plate; the user can change the effective area of the two polar plates by moving the movable polar plate, so as to change the size of the capacitor, namely, the moving distance of the movable polar plate is linearly related to the size of the capacitor; the PWM output unit 40 may be a PWM adjusting chip, and may output pulse voltage signals with different duty ratios according to different capacitance sizes, and the pulse voltage signals with different duty ratios are output to a driving board of the light-variable sunglasses to change the control voltage of the driving board, thereby changing the light transmittance of the sunglasses, and thus implementing adjustment of the light transmittance of multiple gears of the sunglasses.
Optionally, fig. 2 is a schematic structural diagram of another variable light sunglasses driving circuit provided by the present invention; as shown in fig. 2, the driving circuit further includes a hall switch 50; the hall switch 50 is electrically connected between the PWM output unit 40 and the charge converting unit 20, and the hall switch 50 is used to control whether the charge converting unit 20 charges the PWM output unit 40 according to whether the magnetic object is close to the PWM output unit 40.
When the magnetic object moves close to the hall switch, the hall element generates a hall effect to change the state of the internal circuit of the switch, that is, the hall switch 50 can identify the existence of the magnetic object nearby, so as to control the on or off of the switch. When the glasses legs are not opened, the hall switch 50 is close to the magnetic object, and the hall switch 50 is in an off state, the charging conversion unit 20 cannot charge the PWM output unit 40, the PWM output unit 40 cannot output a pulse voltage signal to the sunglasses driving board, and the light-changing sunglasses do not work. When the glasses legs are opened, the hall switches 50 are far away from the magnetic object, the hall switches 50 are in an opened state, the charging conversion unit 20 charges the PWM output unit 40, the PWM output unit 40 outputs pulse voltage signals with different duty ratios to the sunglasses driving plate, and the light-changing sunglasses achieve multi-gear light transmittance adjustment.
Optionally, as shown in fig. 2, the charging unit 10 includes a charging light emitting diode D1 and a charging chip 11; the anode of the charging light emitting diode D1 is electrically connected to an external power supply, the cathode of the charging light emitting diode D1 is electrically connected to the input terminal of the charging chip 11, and the output terminal of the charging chip 11 is electrically connected to the charging conversion unit 20. When the charging chip 11 works, the charging chip 11 continuously outputs voltage, a voltage difference is formed between two ends of the charging light-emitting diode D1, and the charging light-emitting diode D1 lights up at the same time; when the charging chip 11 does not work, both ends of the charging light emitting diode D1 are at high level, and the charging light emitting diode D1 is not bright. Therefore, the charging state of the sunglasses can be prompted through the charging light-emitting diode.
Optionally, the charging unit 10 is electrically connected to the external power supply through a magnetic charging wire. Adopt magnetism to inhale the charging wire can realize excellent dustproof and waterproof design, and firm, take precautions against earthquakes, anti-vibration, can also bear heavy current transmission design, the charge time is fast, weak point consuming time.
The embodiment of the present invention further provides a light-variable sunglasses, and fig. 3 is an exploded view of the light-variable sunglasses provided by the embodiment of the present invention, as shown in fig. 3, the light-variable sunglasses includes a frame 11 and at least one light-variable lens 12; the spectacle frame comprises a spectacle frame sub-part and a spectacle frame sub-part; the glasses temple part comprises the light-variable sunglasses driving circuit of the embodiment; the frame portion is provided with a magnetic sheet. It can be understood that when the temple portion is opened, the hall switch in the dimming sunglasses driving circuit is far away from the magnetic sheet on the frame portion, and the dimming sunglasses driving circuit is started to work; when the temple portion is not opened, a Hall switch in the light-changing sunglasses driving circuit is close to the magnetic sheet on the frame portion, and the light-changing sunglasses driving circuit does not work.
Optionally, the dimming lens 12 comprises a flexible liquid crystal dimming lens; the flexible liquid crystal dimming lens is electrically connected with a dimming sunglasses driving circuit through a flexible printed circuit board. Because the light-variable sunglasses comprise the light-variable sunglasses driving circuit of the embodiment and have the beneficial effects of the embodiment, a user can change the PWM output circuit in the light-variable sunglasses driving circuit to output pulse voltage signals with different duty ratios through the sliding distance and the sliding direction, the pulse voltage signals with different duty ratios are output to the driving plate of the flexible liquid crystal light-variable lens through the flexible printed circuit board so as to adjust the light transmittance of the flexible liquid crystal light-variable lens, and the intelligent design of the flexible liquid crystal light-variable lens is realized
It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. 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 with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.
Claims (7)
1. A dimming sunglass drive circuit, comprising: the device comprises a charging unit, a charging conversion unit, a sliding distance detection unit and a PWM output unit;
the charging unit is electrically connected with the charging conversion unit, the charging conversion unit is electrically connected with a power supply end of the PWM output unit, and the charging unit is used for outputting a preset voltage value to the charging conversion unit; the charging conversion unit is used for transforming the preset voltage value output by the charging unit and outputting the transformed preset voltage value to the PWM output unit;
the sliding distance detection unit is used for sensing the sliding distance and the sliding direction of the finger of the user;
and the receiving end of the PWM output unit is electrically connected with the output end of the sliding distance detection unit and is used for outputting pulse voltage signals with different duty ratios to a driving plate of the light-changing sunglasses according to the sliding distance and the sliding direction so as to adjust the light transmittance of the light-changing sunglasses.
2. A variable light sunglass drive circuit as claimed in claim 1 further including a hall switch; the Hall switch is electrically connected between the PWM output unit and the charging conversion unit,
and the Hall switch is used for controlling whether the charging conversion unit charges the PWM output unit or not according to whether the Hall switch is close to a magnetic object or not.
3. A dimming sunglasses drive circuit as claimed in claim 1, wherein the sliding distance detection unit comprises a capacitive displacement sensor.
4. A variable light sunglasses drive circuit as claimed in claim 1, wherein the charging unit is electrically connected to an external power source through a magnetically attracted charging wire.
5. The dimming sunglasses drive circuit of claim 1, wherein the charging unit comprises a charging led and a charging chip;
the anode of the charging light-emitting diode is electrically connected with an external power supply, the cathode of the charging light-emitting diode is electrically connected with the input end of the charging chip, and the output end of the charging chip is electrically connected with the charging conversion unit.
6. A dimming sunglass comprising a frame and at least one dimming lens; the glasses frame comprises a glasses leg part and a glasses frame part; said temple portion including thereon a variable geometry sunglass drive circuit as recited in any of claims 1-5 above; the frame part is provided with a magnetic sheet.
7. A dimming sunglass as claimed in claim 6 wherein the dimming lens comprises a flexible liquid crystal dimming lens; the flexible liquid crystal dimming lens is electrically connected with the dimming sunglasses driving circuit through a flexible printed circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221670304.5U CN217587791U (en) | 2022-06-29 | 2022-06-29 | Light-changing sunglasses driving circuit and light-changing sunglasses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221670304.5U CN217587791U (en) | 2022-06-29 | 2022-06-29 | Light-changing sunglasses driving circuit and light-changing sunglasses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217587791U true CN217587791U (en) | 2022-10-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221670304.5U Active CN217587791U (en) | 2022-06-29 | 2022-06-29 | Light-changing sunglasses driving circuit and light-changing sunglasses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217587791U (en) |
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2022
- 2022-06-29 CN CN202221670304.5U patent/CN217587791U/en active Active
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