CN209505381U - A kind of automobile demisting sensor - Google Patents
A kind of automobile demisting sensor Download PDFInfo
- Publication number
- CN209505381U CN209505381U CN201920046885.7U CN201920046885U CN209505381U CN 209505381 U CN209505381 U CN 209505381U CN 201920046885 U CN201920046885 U CN 201920046885U CN 209505381 U CN209505381 U CN 209505381U
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- windshield
- temperature
- sensor
- upper cover
- lower cover
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Abstract
The utility model discloses a kind of automobile demisting sensor, it include upper cover, lower cover, windshield sensor, detection chip and connection plug-in unit, the upper cover and lower cover are fixed by screws in together, through-hole is provided in the middle part of the upper cover and lower cover to be used to that windshield sensor is installed, the probe of the windshield sensor extends upper cover, detection chip is provided in the lower cover to be used to detect the temperature and humidity detected in car steering room, the temperature of windshield is detected by the probe of the windshield sensor, the detection chip is connected with plug-in unit is connect；It is detected by automobile demisting sensor come the relative humidity of temperature, passenger compartment same point to windshield and temperature, and the data transmission that will test is analyzed and is calculated to air conditioning for automobiles MCU system, with the notice automotive air-conditioning system of intelligence and driver in advance.
Description
Technical field
The utility model relates to removing fog on automobile glass technical field more particularly to a kind of automobile demisting sensors.
Background technique
The detection mist system of existing air conditioning for automobiles MCU is mainly made of an infrared sensor, and volume is larger, right
Quasi- windshield needs an angle, and expensive, compares oil consumption, and be to have mist Shi Caihui occur to detect, therefore,
Solve the problems, such as this kind of be particularly important.
Utility model content
In view of the above-mentioned problems, being removed the utility model proposes a kind of automobile demisting sensor and its demister system by automobile
Mist sensor detects come the relative humidity of temperature, passenger compartment same point to windshield and temperature, and will test
Data transmission analyzed and calculated to air conditioning for automobiles MCU system, in advance intelligence notice automotive air-conditioning system and driving
Person.
In order to realize above-mentioned technical proposal, the utility model provides a kind of automobile demisting sensor, include upper cover, under
Lid, windshield sensor, detection chip and connection plug-in unit, the upper cover and lower cover are fixed by screws in together, it is described on
It is provided with through-hole in the middle part of lid and lower cover to be used to that windshield sensor is installed, the probe of the windshield sensor extends
Upper cover is provided with detection chip in the lower cover and is used to detect temperature and humidity in detection car steering room, by the front
Glass sensor is popped one's head in detect the temperature of windshield, and the detection chip is connected with plug-in unit is connect.
Further improvement lies in that: the windshield sensor includes copper sheathing, the platinum resistance with lead and spring, described
Copper sheathing is set in the platinum resistance with lead, and one end of the copper sheathing is probe, and the other end is connected with spring.
Further improvement lies in that: heat conductive silica gel is provided on the contact surface of the probe contacted with windshield.
Further improvement lies in that: 3M glue is provided on the surface of the upper cover.
Further improvement lies in that: the detection chip uses SHT31 chip-scale Temperature Humidity Sensor, the connection plug-in unit
Onboard socket model 2292894-2, harness end socket model 2292884-2, metal terminal model 2098583-2.
A kind of automobile demister system, which comprises the following steps:
Step 1: parameter measurement input, it is same to the temperature of windshield, passenger compartment by automobile demisting sensor first
The data transmission that the relative humidity and temperature of any are detected, and will test to air conditioning for automobiles MCU system carry out analysis and
It calculates；
Step 2: being collected into the temperature of the windshield of measurement back, the number of same point relative humidity and temperature in compartment
According to rear, it is that same point in compartment is relatively wet first that the controller of air conditioning for automobiles MCU system, which can be analyzed and be compared to data,
The data of degree and temperature calculate the temperature of dew point in compartment by a series of formula；Then by comparing the temperature and gear of dew point
The temperature of wind glass determines whether windshield hazes, and indicates the temperature of dew point with Td, and Tws indicates the temperature of windshield
Degree, Δ indicate safety coefficient.
Step 3: as Td+ Δ Td+ Δ=> Tws, windshield is possible to haze, and is now in high-risk fog-zone, opens
Beginning demisting.
Step 4: when the relative humidity in compartment is very high, keeping good ventilation, make air dry outside vehicle and
Wet air swaps in compartment, reduces the relative humidity in compartment to the temperature of the dew point in reduced compartment, or
Person directly begins to warm up compartment windshield, increases the temperature of compartment windshield, and exceed the temperature of dew point in compartment,
Or accelerate windshield before air flowing, can it is appropriate increase windshield temperature and windshield in face of air
Exchange, to reduce the relative humidity in face of windshield；Or interior HVAC air-conditioning system is opened, air-conditioning system setting
As outer circulation, compressor can be opened, and reduce rapidly the relative humidity in compartment, and the dew-point temperature in compartment will drop at this time
It is low, the low temperature for crossing compartment windshield.
The beneficial effects of the utility model are: the utility model is by automobile demisting sensor come the temperature to windshield
Degree, the relative humidity of passenger compartment same point and temperature are detected, by wet in measurement compartment windscreen temperature and compartment
The auto-antifog system of degree, before windshield hazes, notice automotive air-conditioning system intelligent in advance and driver, and control and remove
Mist system starts automatic defrosting, avoids the passenger in compartment in dangerous environment, and when passenger compartment at one not
Demister system is automatically closed in the environment of hazing, substantially increases the service efficiency of automotive air-conditioning system, has saved the energy
Consumption, the utility model band self-calibration function, further improves properties of product, substantially increases traffic safety.
Detailed description of the invention
Fig. 1 is the structure chart of the utility model.
Fig. 2 is the side view of the utility model.
Fig. 3 is the structure chart of the detection chip of the utility model.
Fig. 4 is the internal anatomy of the windshield sensor of the utility model.
Fig. 5 is the dew-point temperature and windscreen temperature relationship analysis figure of the utility model.
Wherein: 1- upper cover, 2- lower cover, 3- windshield sensor, 4- detection chip, 5- connection plug-in unit, 6- screw, 7-
Copper sheathing, platinum resistance of the 8- with lead, 9- spring, 10- heat conductive silica gel, 11-3M glue.
Specific embodiment
In order to deepen the understanding to the utility model, the utility model is further described below in conjunction with embodiment,
The present embodiment is only used for explaining the utility model, does not constitute the restriction to scope of protection of the utility model.
Embodiment one
According to Fig. 1,2,3,4, present embodiments provide a kind of automobile demisting sensor, include upper cover 1, lower cover 2,
Windshield sensor 3, detection chip 4 and connection plug-in unit 5, the upper cover 1 and lower cover 2 are fixed together by screw 6, described
The middle part of upper cover 1 and lower cover 2 is provided with through-hole and is used to install windshield sensor 3, the spy of the windshield sensor 3
Head extends upper cover 1, and detection chip 4 is provided in the lower cover 2 and is used to detect the temperature and humidity detected in car steering room,
The temperature of windshield is detected by the probe of the windshield sensor 3, the detection chip 4 is connected with plug-in unit 5 is connect
It connects.The windshield sensor 3 includes copper sheathing 7, the platinum resistance 8 with lead and spring 9, and the copper sheathing 7 is set in band and draws
In the platinum resistance 8 of line, one end of the copper sheathing 7 is probe, and the other end is connected with spring 9.The spy contacted with windshield
Heat conductive silica gel 10 is provided on the contact surface of head.3M glue 11 is provided on the surface of the upper cover 1.
Sensor device test parameter: cab environment temperature: T1, cab environment humidity: H1, preceding shelves glass temperature:
T2。
The utility model band self-calibration function, further improve properties of product, can two extreme temperatures under, adopt
Every demisting sensor dress is assigned to by UART communication with the temperature value of the thermometer of reference instrument rank within a certain period of time
It sets, to calibrate T1 and T2；Under two kinds of extreme humidity, using the hygrometer humidity within a certain period of time of reference instrument rank
Value is assigned to every demisting sensor device by UART communication, to calibrate H1
The utility model can export accurate unlatching demister and close demister using demisting algorithm is internally integrated
Command job principle is as follows:
As shown in figure 5, we using test demister when because (1~2 point of the time when incipient
When clock), the windscreen temperature in compartment is relatively low, and passenger compartment makes the phase of passenger compartment due to the breathing of several individuals
Humidity is constantly increased, is increased so that the dew-point temperature of passenger compartment is also opposite, when dew-point temperature is slowly close to windshield
Temperature when.We can see that, the appearance of mist is gradually begun with above windshield, at this time, if we do not adopt
Any measure is taken, the mist above windshield can be more and more, blocked the visual field of driving personage completely, are in road operation
Comparable danger.At this time we will automatically open our demister system, after automatically opening demister system, from the following figure
We can see that the temperature of windshield starts to increase inside the period of 3~5 minutes middle time, and passenger compartment
Dew-point temperature has gradually turned to decline from rising, and more and more far away from the temperature of windshield, at this time compartment windshield
Mist above also will rapidly disappear.Since we will operate in advance demister system before windshield hazes, so I
Can set a safety coefficient T, when temperature of the dew-point temperature close to windshield, that is, work as T1+T=> T2 gear
Wind glass is in high-risk fog-zone, so demisting control system will at this time be opened, starts demisting, when dew-point temperature and gear
When the temperature spread of wind glass is to certain numerical value, that is, work as T1+2T > T2, stops demisting.
Implement two
A kind of automobile demister system, which comprises the following steps:
Step 1: parameter measurement input, it is same to the temperature of windshield, passenger compartment by automobile demisting sensor first
The data transmission that the relative humidity and temperature of any are detected, and will test to air conditioning for automobiles MCU system carry out analysis and
It calculates；
Step 2: being collected into the temperature of the windshield of measurement back, the number of same point relative humidity and temperature in compartment
According to rear, it is that same point in compartment is relatively wet first that the controller of air conditioning for automobiles MCU system, which can be analyzed and be compared to data,
The data of degree and temperature calculate the temperature of dew point in compartment by a series of formula；Then by comparing the temperature and gear of dew point
The temperature of wind glass determines whether windshield hazes, and indicates the temperature of dew point with Td, and Tws indicates the temperature of windshield
Degree, Δ indicate safety coefficient.
Step 3: as Td+ Δ Td+ Δ=> Tws, windshield is possible to haze, and is now in high-risk fog-zone, opens
Beginning demisting.
Step 4: when the relative humidity in compartment is very high, keeping good ventilation, make air dry outside vehicle and
Wet air swaps in compartment, reduces the relative humidity in compartment to the temperature of the dew point in reduced compartment, or
Person directly begins to warm up compartment windshield, increases the temperature of compartment windshield, and exceed the temperature of dew point in compartment,
Or accelerate windshield before air flowing, can it is appropriate increase windshield temperature and windshield in face of air
Exchange, to reduce the relative humidity in face of windshield；Or interior HVAC air-conditioning system is opened, air-conditioning system setting
As outer circulation, compressor can be opened, and reduce rapidly the relative humidity in compartment, and the dew-point temperature in compartment will drop at this time
It is low, the low temperature for crossing compartment windshield.
The utility model by automobile demisting sensor come to windshield temperature, passenger compartment same point it is relatively wet
Degree and temperature are detected, by the auto-antifog system of humidity in measurement compartment windscreen temperature and compartment, in the glass that keeps out the wind
Before glass hazes, notice automotive air-conditioning system intelligent in advance and driver, and control demister system and start automatic defrosting, make compartment
In passenger avoid in dangerous environment, and when demisting is automatically closed in the environment of will not haze for one in passenger compartment
System substantially increases the service efficiency of automotive air-conditioning system, has saved the consumption of the energy, the utility model band self calibration function
Can, properties of product are further improved, traffic safety is substantially increased.
Claims (4)
1. a kind of automobile demisting sensor, it is characterised in that: include upper cover (1), lower cover (2), windshield sensor (3),
Detection chip (4) and connection plug-in unit (5), the upper cover (1) and lower cover (2) are fixed together by screw (6), the upper cover
(1) and in the middle part of lower cover (2) through-hole is provided with to be used to install windshield sensor (3), the windshield sensor (3)
Probe extends upper cover (1), and detection chip (4) are provided in the lower cover (2) and are used to detect the temperature detected in car steering room
Degree and humidity, are detected the temperature of windshield by the probe of the windshield sensor (3), the detection chip (4) with
Connection plug-in unit (5) is connected.
2. a kind of automobile demisting sensor according to claim 1, it is characterised in that: the windshield sensor (3)
It include copper sheathing (7), the platinum resistance (8) with lead and spring (9), the copper sheathing (7) is set in the platinum resistance (8) with lead
On, one end of the copper sheathing (7) is probe, and the other end is connected with spring (9).
3. a kind of automobile demisting sensor according to claim 1, it is characterised in that: the spy contacted with windshield
Heat conductive silica gel (10) are provided on the contact surface of head.
4. a kind of automobile demisting sensor according to claim 1, it is characterised in that: set on the surface of the upper cover (1)
It is equipped with 3M glue (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920046885.7U CN209505381U (en) | 2019-01-11 | 2019-01-11 | A kind of automobile demisting sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920046885.7U CN209505381U (en) | 2019-01-11 | 2019-01-11 | A kind of automobile demisting sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209505381U true CN209505381U (en) | 2019-10-18 |
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| CN201920046885.7U Active CN209505381U (en) | 2019-01-11 | 2019-01-11 | A kind of automobile demisting sensor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532403A (en) * | 2019-01-11 | 2019-03-29 | 江苏友穗传感科技股份有限公司 | A kind of automobile demisting sensor and its demister system |
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2019
- 2019-01-11 CN CN201920046885.7U patent/CN209505381U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532403A (en) * | 2019-01-11 | 2019-03-29 | 江苏友穗传感科技股份有限公司 | A kind of automobile demisting sensor and its demister system |
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