CN111000316A - Automatic anti-fogging double-lens helmet and using method thereof - Google Patents
Automatic anti-fogging double-lens helmet and using method thereof Download PDFInfo
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- CN111000316A CN111000316A CN201911310029.9A CN201911310029A CN111000316A CN 111000316 A CN111000316 A CN 111000316A CN 201911310029 A CN201911310029 A CN 201911310029A CN 111000316 A CN111000316 A CN 111000316A
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- A—HUMAN NECESSITIES
- A42—HEADWEAR
- A42B—HATS; HEAD COVERINGS
- A42B3/00—Helmets; Helmet covers ; Other protective head coverings
- A42B3/04—Parts, details or accessories of helmets
- A42B3/18—Face protection devices
- A42B3/22—Visors
- A42B3/24—Visors with means for avoiding fogging or misting
- A42B3/245—Visors with means for avoiding fogging or misting using means for heating, e.g. electric heating of the visor
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Abstract
The invention provides an automatic anti-fogging double-lens helmet and a using method thereof, wherein the double-lens helmet comprises a helmet body, an outer lens and an inner lens are arranged on the helmet body, and the inner lens is positioned on the inner side of the outer lens; and a cavity is arranged between the outer side lens and the inner side lens and is connected with an anti-fogging mechanism, and the anti-fogging mechanism is connected with an automatic control circuit. The anti-fogging mechanism has the anti-fogging and direct sunlight-preventing functions, realizes automatic, efficient and reliable anti-fogging through the matching of the anti-fogging mechanism and the automatic control circuit, and obviously improves the safety of helmet use; and the cavity formed by the double lenses can simultaneously realize the remarkable reduction of energy consumption and the remarkable improvement of safety, thereby effectively solving the problem that the inner side of the helmet lens is fogged when a driver wears the helmet in cold weather and rainy days, so that the driving safety is seriously influenced.
Description
Technical Field
The invention relates to the technical field of automatic control and helmet safety, in particular to an automatic anti-fogging double-lens helmet and a using method thereof.
Background
In order to cope with the current situations of traffic jam and difficult parking, electric vehicles or motorcycles are the vehicles preferred by many people. With the enhancement of safety awareness, when an electric vehicle or a motorcycle is selected as a travel tool, a riding person wears a helmet. In chilly weather and rainy day, because the inside and outside difference in temperature of helmet and the air humidity in the helmet is great, the phenomenon of fogging appears easily in the inboard of helmet lens, and the sight of the personnel of riding can be sheltered from to the mist, and corresponding influence personnel of riding are to emergency's judgement to can cause the traffic accident. At present, the common antifogging technology is to spray antifogging agent or paste antifogging film on the inner side of the helmet lens, but the antifogging technology has the defects of short service life, easy abrasion, easy corrosion and the like. This results in the antifogging effect of the helmet lens being insignificant or ineffective after a long period of use. Therefore, in order to eliminate the potential safety hazard of the riding personnel during traveling, how to realize long-term anti-fogging of the helmet lens becomes a difficult problem to be solved urgently.
Disclosure of Invention
Aiming at the technical problem that the anti-fogging effect is poor due to the fact that the anti-fogging technology adopted by the existing helmet is easy to wear and corrode, the invention provides the automatic anti-fogging double-lens helmet and the using method.
The technical scheme of the invention is realized as follows:
an automatic anti-fogging double-lens helmet comprises a helmet body, wherein an outer lens and an inner lens are mounted on the helmet body, and the inner lens is positioned on the inner side of the outer lens; and a cavity is arranged between the outer side lens and the inner side lens and is connected with an anti-fogging mechanism, and the anti-fogging mechanism is connected with an automatic control circuit.
The anti-fogging mechanism comprises a return air pipe, an air supply pipe and an air heater; the inlet of the air heater is communicated with the exhaust port of the air pump, the air suction port of the air pump is communicated with the air return pipe, the air return pipe is communicated with the air return port, the air return port is arranged at the lower part of the cavity, the upper part of the cavity is provided with an air supply port, the air supply port is communicated with the air supply pipe, and the air supply pipe is communicated with the outlet of the air heater; the air return pipe and the air supply pipe are both arranged on the helmet body.
The automatic control circuit comprises a lithium ion battery, a controller, a power switch, a power-off delay electromagnetic relay and an electromagnetic relay; the positive pole of the lithium ion battery is connected with a power switch, the power switch is respectively connected with a power-off delay electromagnetic relay, an electromagnetic relay and a controller, the controller is respectively connected with the power-off delay electromagnetic relay and the electromagnetic relay, the power-off delay electromagnetic relay is connected with an air pump, the air pump is connected with the negative pole of the lithium ion battery, the electromagnetic relay is connected with an air heater, the air heater is connected with the negative pole of the lithium ion battery, and the controller is connected with the negative pole of the lithium ion battery; the lithium ion battery, the air heater, the controller, the power-off delay electromagnetic relay, the electromagnetic relay and the power switch are all arranged in the equipment room.
The power-off time-delay electromagnetic relay comprises a contact I and a coil I, wherein the contact I is coupled with the coil I, the contact I is respectively connected with the power switch and the air pump, and the coil I is respectively connected with the controller and the negative electrode of the lithium ion battery; the electromagnetic relay comprises a contact II and a coil II, the contact II is coupled with the coil II, the contact II is respectively connected with the power switch and the air heater, and the coil II is respectively connected with the controller and the negative electrode of the lithium ion battery.
The helmet body comprises a helmet shell, a heat insulation buffer layer is arranged on the inner side of the helmet shell, a lining is arranged on the inner side of the heat insulation buffer layer, a gap is formed between the heat insulation buffer layer and the lining, and a return air pipe and an air supply pipe are arranged in the gap.
The outer side lens and the inner side lens are movably connected to a helmet shell through a connecting knob, a third temperature sensor is arranged on the helmet shell, a first temperature sensor and a first humidity sensor are arranged at the lower part of a lining close to the cavity, a second temperature sensor and a second humidity sensor are arranged in the cavity, and the second temperature sensor and the second humidity sensor are fixedly arranged on the lower edge of the heat insulation buffer layer; and a fourth temperature sensor is arranged on the air heater, and the fourth temperature sensor, the first humidity sensor, the second temperature sensor, the second humidity sensor and the third temperature sensor are all connected with the controller.
And a heat insulation layer is arranged outside the air heater.
The first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor are all thermal resistance or thermocouple type temperature sensors; the first humidity sensor and the second humidity sensor are both resistance type or capacitance type humidity sensors.
The lithium ion battery is a liquid lithium ion battery or a polymer lithium ion battery; the helmet shell is made of engineering plastics, special steel, glass fiber reinforced plastics, glass fiber, carbon fiber, boron fiber or Kevlar fiber.
An automatic anti-fogging double-lens helmet using method comprises the following steps:
s1, when the outdoor temperature is low, manually closing a power switch; the electric signal transmission of the temperature that first temperature sensor, first humidity transducer, second temperature sensor, second humidity transducer, third temperature sensor and fourth temperature sensor measured and humidity to the controller, the controller is handled the electric signal of input and is judged whether the inboard of outside lens and the inboard of inboard lens are in the state of fogging and whether have equipment trouble:
at the step of S11, the method comprises the steps of, when the inner side of the outer lens or the inner side of the inner lens is judged to be fogged, the controller controls the power-off delay electromagnetic relay and the electromagnetic coil of the electromagnetic relay to be powered on, the contacts of the power-off delay electromagnetic relay and the electromagnetic relay are closed, the air heater and the air pump are in a power-on state, the air heater and the air pump circularly heat the air in the cavity until the inner sides of the outer lens and the inner lens are judged not to be fogged, the controller controls the power-off delay electromagnetic relay to be powered off in a delay mode, the electromagnetic coil of the electromagnetic relay is controlled to be powered off immediately by the controller, the contacts of the power-off delay electromagnetic relay are delayed to be disconnected, the contacts of the electromagnetic relay are disconnected immediately, the air heater stops working immediately, and the air pump continues to run for a period of time under the effect of the power-off;
s12, when the inner sides of the outer lens and the inner lens are judged to be not fogged, the contacts of the power-off delay electromagnetic relay and the electromagnetic relay are both in an off state, and the air heater and the air pump are both in a power-off state;
s13, when the power failure delay electromagnetic relay and the contact of the electromagnetic relay are closed for a certain time:
s13.1, the temperature value measured by the fourth temperature sensor is in Tmin，Tmax]Judging that the air heater and the air pump are not in fault;
s13.2, the temperature value measured by the fourth temperature sensor is higher than TmaxWhen the air pump is judged to be in fault, the controller immediately controls the power-off delay electromagnetic relay and the contact of the electromagnetic relay to be disconnected;
s13.3, the temperature value measured by the fourth temperature sensor is lower than TminWhen the air heater is judged to be in fault, the controller immediately controls the power-off delay electromagnetic relay and the contact of the electromagnetic relay to be disconnected;
and S2, when the outdoor temperature is not enough and the fogging condition is not met, manually disconnecting the power switch, and enabling the controller, the power-off delay electromagnetic relay, the air heater and the air pump to be in a power-off state.
The beneficial effect that this technical scheme can produce:
(1) the anti-fogging mechanism has the anti-fogging and direct sunlight-preventing functions, realizes automatic, efficient and reliable anti-fogging through the matching of the anti-fogging mechanism and the automatic control circuit, and obviously improves the safety of helmet use;
(2) the invention can realize the anti-fogging purpose only by heating the air in the cavity formed by the double lenses, obviously reduces the energy consumption and has the energy-saving function.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic view of the helmet structure of the present invention;
FIG. 2 is a diagram illustrating a determination of a fogging state according to the present invention;
FIG. 3 is a diagram of the device failure determination of the present invention;
FIG. 4 is a circuit diagram of the automatic control of the anti-fogging system of the present invention;
FIG. 5 is a schematic view of the structure of the air supply opening of the present invention;
FIG. 6 is a schematic view of the structure of the air return opening of the present invention.
In the figure, 1 is a return air pipe, 2 is a connecting knob, and 3 is a return air inlet; 3-1 is a return air branch air duct, 4 is an outer side lens, 5 is an inner side lens, 6 is a cavity, 7 is a second humidity sensor, 8 is a second temperature sensor, 9 is an air supply outlet, 9-1 is an air supply branch air duct, 10 is a first temperature sensor, 11 is a first humidity sensor, 12 is a third temperature sensor, 13 is an air supply pipe, 14 is a helmet shell, 15 is a heat insulation buffer layer, 16 is a lining, 17 is an equipment room, 18 is a heat insulation layer, 19 is an air heater, 20 is a fourth temperature sensor, 21 is a lithium ion battery, 22 is an air pump, 23 is a power-off delay electromagnetic relay, 24 is an electromagnetic relay, 25 is a controller, and 26 is a power switch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.
Embodiment 1, as shown in fig. 1, the invention provides an automatic anti-fogging dual-lens helmet, which includes a helmet body, an outer lens 4 and an inner lens 5 are mounted on the helmet body, the outer lens 4 has an anti-scratching function, the inner lens 5 has a direct sunlight-preventing function, the inner lens 5 is located inside the outer lens 4, the outer lens 4 and the inner lens 5 are both movably connected to the helmet body through a connecting knob 2, so that the outer lens 4 and the inner lens 5 move up and down relative to the helmet body. Be equipped with cavity 6 between outside lens 4 and the inboard lens 5, cavity 6 is connected with anti-fogging mechanism, and anti-fogging mechanism is connected with automatic control circuit, heats the air in the cavity that double lens formed through anti-fogging mechanism and automatic control circuit and can realize anti-fogging purpose. The anti-fogging mechanism comprises a return air pipe 1, an air supply pipe 13 and an air heater 19; the inlet of the air heater 19 is communicated with the exhaust port of the air pump 22, the air suction port of the air pump 22 is communicated with the air return pipe 1, the air return pipe 1 is communicated with the air return port 3, the air return port 3 is arranged at the lower part of the cavity 6, the upper part of the cavity 6 is provided with an air supply port 9, the air supply port 9 is communicated with an air supply pipe 13, and the air supply pipe 13 is communicated with the outlet of the air heater 19; the heat generated by the air heater 19 flows through the return duct 1, the cavity 6, and the blast pipe 13, and the air pump 22 can accelerate the flow of the heat in the air. The return air pipe 1 and the blast pipe 13 are both arranged in the heat insulation buffer layer 15. As shown in fig. 5 and 6, the return air inlet 3 includes a plurality of equally distributed branch air ducts 3-2, and the supply air outlet 9 includes a plurality of equally distributed branch air ducts 9-2.
As shown in fig. 4, the automatic control circuit includes a lithium ion battery 21, a controller 25, a power switch 26, a power-off delay electromagnetic relay 23 and an electromagnetic relay 24; the positive pole of the lithium ion battery 21 is connected with a power switch 26, the power switch 26 is respectively connected with a power-off delay electromagnetic relay 23, an electromagnetic relay 24 and a controller 25, the power switch 26 is used for controlling the power-on and power-off of the power-off delay electromagnetic relay 23, the electromagnetic relay 24 and the controller 25, the controller 25 is respectively connected with the power-off delay electromagnetic relay 23 and the electromagnetic relay 24, the power-off delay electromagnetic relay 23 is connected with an air pump 22, the air pump 22 is connected with the negative pole of the lithium ion battery 21, the electromagnetic relay 24 is connected with an air heater 19, the air heater 19 is connected with the negative pole of the lithium ion battery 21, and the controller 25 is connected with the negative pole of the lithium ion battery 21; the lithium ion battery 21, the air heater 19, the controller 25, the power-off delay electromagnetic relay 23 and the electromagnetic relay 24 are all arranged in the equipment room 17, so that the service lives of the lithium ion battery 21, the power-off delay electromagnetic relay 23, the electromagnetic relay 24, the controller 25 and the power switch 26 can be prolonged, external interference can be prevented, and the equipment room 17 is arranged at the rear part of the helmet body. The power-off delay electromagnetic relay 23 comprises a contact I and a coil I, the contact I is coupled with the coil I, the contact I is respectively connected with the power switch 26 and the air pump 22, and the coil I is respectively connected with the controller 25 and the cathode of the lithium ion battery 21; the electromagnetic relay 24 comprises a contact II and a coil II, the contact II is coupled with the coil II, the contact II is respectively connected with the power switch 26 and the air pump 22, and the coil II is respectively connected with the controller 25 and the negative electrode of the lithium ion battery 21. The controller 25 comprises a transistor VT and a microprocessor, one end of the microprocessor is connected with the power switch 26, the other end of the microprocessor is connected with the base of the transistor VT, the collector of the transistor VT is connected with the negative electrode of the lithium ion battery 21, and the emitter of the transistor VT is respectively connected with the coil I and the coil II.
The air heater 19 is provided with a fourth temperature sensor 20, the fourth temperature sensor 20 is used for collecting the surface temperature of the air heater 19, the fourth temperature sensor 20 is connected with the controller 25, the fourth temperature sensor 20 transmits collected temperature electric signals to the controller 25, and the controller 25 analyzes whether equipment fails according to the temperature electric signals. The controller 25 is respectively connected with the power-off delay electromagnetic relay 23 and the electromagnetic relay 24, the controller 25 is used for controlling the power-on and power-off of the power-off delay electromagnetic relay 23 and the electromagnetic relay 24, the power-off delay electromagnetic relay 23 and the electromagnetic relay 24 are both connected with the lithium ion battery 21, the lithium ion battery 21 is a liquid lithium ion battery or a polymer lithium ion battery, the lithium ion battery 21 provides a working power supply for the power-off delay electromagnetic relay 23 and the electromagnetic relay 24, the lithium ion battery 21 is connected with the power switch 26, the power switch 26 is connected with the controller 25, and the power switch 26 is used for controlling the power-on and power-off of the helmet body.
As shown in fig. 1, the helmet body includes a helmet shell 14, and the helmet shell 14 is made of engineering plastics, special steel, glass fiber reinforced plastics, glass fiber, carbon fiber, boron fiber, or kevlar fiber. 14 inboards of helmet shell are equipped with thermal-insulated buffer layer 15, thermal-insulated buffer layer 15's effect prevents that outside heat from spreading into helmet inside and through the effectual impact force that slows down of deformation and compression when taking place the striking to this reaches the purpose of protection head, thermal-insulated buffer layer 15 inboards are equipped with lining 16, lining 16 makes helmet and head more laminate, prevent that the helmet from shaking and rotating, have sweat-absorbing simultaneously concurrently, absorb the function of impact and noise reduction, and be equipped with the clearance between thermal-insulated buffer layer 15 and the lining 16, be convenient for inboard lens 5 freely stretches out and draws back. A third temperature sensor 12 is arranged on the helmet shell 14 and used for collecting a temperature electrical signal of air outside the helmet, a first temperature sensor 10 and a first humidity sensor 11 are arranged at the lower part of the lining 16 close to the cavity 6, the first temperature sensor 10 is used for measuring a temperature electrical signal inside the helmet, and the first humidity sensor 11 is used for measuring a humidity electrical signal inside the helmet; a second temperature sensor 7 and a second humidity sensor 8 are arranged in the cavity 6, the second temperature sensor 7 is used for acquiring a temperature electric signal in the cavity 6, the second humidity sensor 8 is used for acquiring a humidity electric signal in the cavity 6, and the second temperature sensor 7 and the second humidity sensor 8 are fixedly arranged on the lower edge of the heat insulation buffer layer 15; the air heater 19 is provided with a fourth temperature sensor 20, and the fourth temperature sensor 20 is used for acquiring a temperature electric signal generated by the air heater 19; the air heater 19 is provided with a heat insulation layer 18 on the outside, and the heat insulation layer 18 is used for preventing heat generated when the air heater 19 works from being dissipated to the outside. The fourth temperature sensor 20, the first temperature sensor 10, the first humidity sensor 11, the second temperature sensor 7, the second humidity sensor 8 and the third temperature sensor 12 are all connected with the controller 25, and transmit an external temperature electric signal of the helmet, an internal temperature electric signal and a humidity electric signal of the helmet, a temperature electric signal and a humidity electric signal in the cavity 6 and a temperature electric signal on the surface of the air heater 19 to the controller 25. The controller 25 processes the temperature electrical signal outside the helmet, the temperature electrical signal and the humidity electrical signal inside the helmet, and the temperature electrical signal and the humidity electrical signal inside the cavity 6 to determine whether the inner lens 5 and the outer lens 4 are in the fogging state. The controller 25 analyzes whether any equipment is out of order by the electric signal of the temperature of the surface of the air heater 19. The first temperature sensor 10, the second temperature sensor 7, the third temperature sensor 12 and the fourth temperature sensor 20 are all thermal resistance or thermocouple type temperature sensors; the first humidity sensor 11 and the second humidity sensor 8 are both resistive or capacitive humidity sensors.
s1, when the outdoor temperature is low, the power switch 26 is manually closed; the electric signals of the temperature and the humidity measured by the first temperature sensor 10, the first humidity sensor 11, the second temperature sensor 7, the second humidity sensor 8, the third temperature sensor 12 and the fourth temperature sensor 20 are transmitted to the controller 25, the controller 25 processes the input electric signals and judges whether the inner side of the outer lens 4 and the inner side of the inner lens 5 are in the fogging state and whether there is an equipment failure: as shown in fig. 2, the controller 25 measures the temperature T inside the helmet through the first temperature sensor 10 and the first humidity sensor 111And the humidity phi in the helmet1Calculating the dew point temperature T in the helmetd1At the dew point temperature Td1Adding a safety factor Delta T1The obtained value is compared with the temperature T inside the cavity 6 measured by the controller 25 through the second temperature sensor 72Making a comparison when Td1+ΔT1Greater than T2If so, judging that the inner side of the inner lens 5 is fogged, otherwise, not fogging; the temperature T inside the cavity 6 measured by the controller 25 through the second temperature sensor 7 and the second humidity sensor 82And the humidity phi in the cavity 62Calculating the dew point temperature T in the cavity 6d2At the dew point temperature Td2Adding a safety factor Delta T2The value obtained is compared with the temperature T outside the helmet measured by the controller 25 via the third temperature sensor 123Making a comparison when Td2+ΔT2Greater than T3If so, it is determined that the inner side of the outer lens 4 is fogged, otherwise, it is not fogged.
S11, when the inner side of the outer lens 4 or the inner side of the inner lens 5 is judged to be fogged, the controller 25 outputs a control electric signal, as shown in FIG. 4, the transistor VT is turned on, the controller 25 controls the power-off delay electromagnetic relay 23 and the electromagnetic coil of the electromagnetic relay 24 to be electrified, the contacts of the power-off delay electromagnetic relay 23 and the electromagnetic relay 24 are closed, the air heater 19 and the air pump 22 are in an electrified state, the air heater 19 and the air pump 22 circularly heat the air in the cavity 6 until the inner side of the outer lens 4 and the inner side of the inner lens 5 are judged not to be fogged, the controller 25 does not output the control electric signal, the transistor VT is turned off, the controller 25 controls the power-off delay electromagnetic relay 23 to be powered off in a delayed manner, the controller 25 controls the electromagnetic coil of the electromagnetic relay 24 to be powered off immediately, and the contacts of the power-off, the contact of the electromagnetic relay 24 is immediately disconnected, the air heater 19 immediately stops working, and the air pump 22 continues to operate for a period of time under the action of the power-off delay electromagnetic relay 23 to take away the waste heat of the air heater 19.
And S12, when the inner side of the outer lens 4 and the inner side of the inner lens 5 are judged not to be fogged, the contacts of the power-off delay electromagnetic relay 23 and the electromagnetic relay 24 are both in an off state, and the air heater 19 and the air pump 22 are both in a power-off state.
S13, as shown in fig. 3, when the contacts of the power-off delay electromagnetic relay 23 and the electromagnetic relay 24 are closed for a certain time:
s13.1, temperature measured by the fourth temperature sensor 20Value T4At [ T ]min，Tmax]In the above, it is determined that neither the air heater 19 nor the air pump 22 has failed;
s13.2, temperature value T measured by fourth temperature sensor 204Greater than TmaxWhen the air pump 22 is judged to be in fault, the controller (25) immediately controls the contacts of the power-off delay electromagnetic relay 23 and the electromagnetic relay 24 to be disconnected;
s13.3, temperature value T measured by fourth temperature sensor 204Less than TminWhen it is determined that the air heater 19 has failed, the controller 25 immediately opens the contacts of the power-off delay electromagnetic relay 23 and the electromagnetic relay 24.
And S2, when the outdoor temperature is not enough and the fogging condition is not met, manually turning off the power switch 26, and turning off the controller 25, the power-off delay electromagnetic relay 23, the electromagnetic relay 24, the air heater 19 and the air pump 22.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (10)
1. An automatic anti-fogging double-lens helmet comprises a helmet body, wherein an outer lens (4) and an inner lens (5) are mounted on the helmet body, and the inner lens (5) is positioned on the inner side of the outer lens (4); the automatic fog-proof lens is characterized in that a cavity (6) is arranged between the outer side lens (4) and the inner side lens (5), the cavity (6) is connected with an anti-fog mechanism, and the anti-fog mechanism is connected with an automatic control circuit.
2. The automatic anti-fogging dual-lens helmet according to claim 1, characterised in that the anti-fogging mechanism comprises a return air duct (1), a blast duct (13) and an air heater (19); the inlet of the air heater (19) is communicated with the exhaust port of the air pump (22), the air suction port of the air pump (22) is communicated with the air return pipe (1), the air return pipe (1) is communicated with the air return port (3), the air return port (3) is arranged at the lower part of the cavity (6), the upper part of the cavity (6) is provided with an air supply outlet (9), the air supply outlet (9) is communicated with an air supply pipe (13), and the air supply pipe (13) is communicated with the outlet of the air heater (19); the air return pipe (1) and the air supply pipe (13) are both arranged on the helmet body.
3. The automatic anti-fogging double-lens helmet according to claim 1 or 2, characterised in that the automatic control circuit comprises a lithium ion battery (21), a controller (25), a power switch (26), a power-off time-delay electromagnetic relay (23) and an electromagnetic relay (24); the positive pole of the lithium ion battery (21) is connected with a power switch (26), the power switch (26) is respectively connected with a power-off delay electromagnetic relay (23), an electromagnetic relay (24) and a controller (25), the controller (25) is respectively connected with the power-off delay electromagnetic relay (23) and the electromagnetic relay (24), the power-off delay electromagnetic relay (23) is connected with an air pump (22), the air pump (22) is connected with the negative pole of the lithium ion battery (21), the electromagnetic relay (24) is connected with an air heater (19), the air heater (19) is connected with the negative pole of the lithium ion battery (21), and the controller (25) is connected with the negative pole of the lithium ion battery (21); the lithium ion battery (21), the air heater (19), the controller (25), the power-off delay electromagnetic relay (23), the electromagnetic relay (24) and the power switch (26) are all arranged in the equipment room (17).
4. The automatic anti-fogging double-lens helmet according to claim 3, characterised in that the power-off time-delay electromagnetic relay (23) comprises a contact I and a coil I, the contact I is coupled with the coil I, the contact I is respectively connected with the power switch (26) and the air pump (22), and the coil I is respectively connected with the controller (25) and the negative electrode of the lithium ion battery (21); the electromagnetic relay (24) comprises a contact II and a coil II, the contact II is coupled with the coil II, the contact II is respectively connected with the power switch (26) and the air heater (19), and the coil II is respectively connected with the controller (25) and the negative electrode of the lithium ion battery (21).
5. The automatic anti-fogging double-lens helmet according to claim 1, wherein the helmet body comprises a helmet shell (14), a thermal insulation buffer layer (15) is arranged on the inner side of the helmet shell (14), a lining (16) is arranged on the inner side of the thermal insulation buffer layer (15), a gap is arranged between the thermal insulation buffer layer (15) and the lining (16), and a return air pipe (1) and an air supply pipe (13) are arranged in the gap.
6. The automatic anti-fogging double-lens helmet according to claim 1, 2 or 5, characterized in that the outer lens (4) and the inner lens (5) are both movably connected to the helmet shell (14) by means of a connecting knob (2), the helmet shell (14) is provided with a third temperature sensor (12), the lower part of the lining (16) close to the cavity (6) is provided with a first temperature sensor (10) and a first humidity sensor (11), the cavity (6) is provided with a second temperature sensor (7) and a second humidity sensor (8), and the second temperature sensor (7) and the second humidity sensor (8) are fixedly arranged on the lower edge of the thermal insulation buffer layer (15); and a fourth temperature sensor (20) is arranged on the air heater (19), and the fourth temperature sensor (20), the first temperature sensor (10), the first humidity sensor (11), the second temperature sensor (7), the second humidity sensor (8) and the third temperature sensor (12) are all connected with a controller (25).
7. The automatic anti-fogging double-lens helmet according to claim 6, characterised in that the air heater (19) is externally provided with a thermal insulating layer (18).
8. The automatic anti-fogging dual-lens helmet according to claim 6, characterised in that the first (10), second (7), third (12) and fourth (20) temperature sensors are all thermal resistance or thermocouple type temperature sensors; the first humidity sensor (11) and the second humidity sensor (8) are both resistance type or capacitance type humidity sensors.
9. The automatic anti-fogging dual-lens helmet according to claim 4 or 5, characterised in that the lithium-ion battery (21) is a liquid lithium-ion battery or a polymer lithium-ion battery; the helmet shell (14) is made of engineering plastics, special steel, glass fiber reinforced plastics, glass fiber, carbon fiber, boron fiber or Kevlar fiber.
10. Use of an automatic anti-fogging dual lens helmet according to claims 1, 2, 4, 5, 7 or 8, characterised by the following steps:
s1, when the outdoor temperature is low, manually closing the power switch (26); the electric signals of the temperature and the humidity measured by the first temperature sensor (10), the first humidity sensor (11), the second temperature sensor (7), the second humidity sensor (8), the third temperature sensor (12) and the fourth temperature sensor (20) are transmitted to the controller (25), the controller (25) processes the input electric signals and judges whether the inner side of the outer lens (4) and the inner side of the inner lens (5) are in a fogging state or not and whether equipment faults exist or not:
s11, when the inner side of the outer lens (4) or the inner side of the inner lens (5) is judged to be fogged, the controller (25) controls the power-off delay electromagnetic relay (23) and the electromagnetic coil of the electromagnetic relay (24) to be electrified, the contacts of the power-off delay electromagnetic relay (23) and the electromagnetic relay (24) are closed, the air heater (19) and the air pump (22) are in an electrified state, the air heater (19) and the air pump (22) circularly heat the air in the cavity (6) until the inner side of the outer lens (4) and the inner side of the inner lens (5) are judged not to be fogged, the controller (25) controls the power-off delay electromagnetic relay (23) to be powered off in a delay way, the controller (25) controls the electromagnetic coil of the electromagnetic relay (24) to be powered off immediately, the contact of the power-off delay electromagnetic relay (23) is in a delay way of being disconnected, and the contact of the electromagnetic relay (, the air heater (19) stops working immediately, and the air pump (22) continues to operate for a period of time under the action of the power-off delay electromagnetic relay (23) to take away the waste heat of the air heater (19);
s12, when the inner side of the outer lens (4) and the inner side of the inner lens (5) are judged not to be fogged, the contacts of the power-off delay electromagnetic relay (23) and the electromagnetic relay (24) are in an off state, and the air heater (19) and the air pump (22) are in a power-off state;
s13, when the contact points of the power-off delay electromagnetic relay (23) and the electromagnetic relay (24) are closed for a certain time:
s13.1, the temperature value measured by the fourth temperature sensor (20) is in [ Tmin，Tmax]Judging that the air heater (19) and the air pump (22) are not in fault;
s13.2, the temperature value measured by the fourth temperature sensor (20) is higher than TmaxWhen the air pump (22) is judged to be in fault, the controller (25) immediately controls the contacts of the power-off delay electromagnetic relay (23) and the electromagnetic relay (24) to be disconnected;
s13.3, the temperature value measured by the fourth temperature sensor (20) is lower than TminWhen the air heater (19) is judged to be in fault, the controller (25) immediately controls the contacts of the power-off delay electromagnetic relay (23) and the electromagnetic relay (24) to be switched off;
and S2, when the outdoor temperature is not enough and the fogging condition is not met, manually turning off the power switch (26), and the controller (25), the power-off delay electromagnetic relay (23), the electromagnetic relay (24), the air heater (19) and the air pump (22) are all in a power-off state.
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| JP2001055617A (en) * | 1999-08-10 | 2001-02-27 | Suzuki Motor Corp | Defogging device of helmet shield |
| CN102745173A (en) * | 2012-07-24 | 2012-10-24 | 苏州工业园区七星电子有限公司 | Car windshield fog-resisting system based on sensor technology |
| CN104290561A (en) * | 2014-09-11 | 2015-01-21 | 中国科学院理化技术研究所 | Method for recovering exhaust heat of electric automobile and heat pump air conditioning system applying same |
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