KR101716953B1 - Headlamps inside air flow measurement device - Google Patents

Headlamps inside air flow measurement device Download PDF

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Publication number
KR101716953B1
KR101716953B1 KR1020150063319A KR20150063319A KR101716953B1 KR 101716953 B1 KR101716953 B1 KR 101716953B1 KR 1020150063319 A KR1020150063319 A KR 1020150063319A KR 20150063319 A KR20150063319 A KR 20150063319A KR 101716953 B1 KR101716953 B1 KR 101716953B1
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South Korea
Prior art keywords
air
head lamp
laser
lamp
air flow
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KR1020150063319A
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Korean (ko)
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KR20160131297A (en
Inventor
고영석
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고영석
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/08—Testing mechanical properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/30—Testing of optical devices, constituted by fibre optics or optical waveguides
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/84—Systems specially adapted for particular applications
    • G01N21/85—Investigating moving fluids or granular solids
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
    • G01P13/00—Indicating or recording presence, absence, or direction, of movement
    • G01P13/02—Indicating direction only, e.g. by weather vane

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Optics & Photonics (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

[0001] The present invention relates to a head lamp internal air flow measuring apparatus, and more particularly, to a head lamp internal air flow measuring apparatus which includes a lens unit on the front side and a rear side of the lens unit to form a space therein, A head lamp having a space for securing a visible image formed between the lens part and the lamp inside the lamp case; A colored air generating means for forming a vaporized fluidizing liquid which is vaporized by an exothermic reaction while maintaining a liquid phase at room temperature to form colored air in a space for securing a visible image; A visualizing laser divergence device formed at a front surface of the headlamp and having at least one laser emitter which emits a flat laser beam to the front surface of the headlamp to form an image of visible airflow through reaction with colored air in a space for securing a visible image; A moving visual image photographing device having at least one camera for photographing an air flow visible image formed in a visualized image securing space by a visualized laser diverging device; And an analyzer for controlling the operation of the visualized laser divergence device and the flow visual image capturing device and for storing, analyzing and analyzing the air flow visual image captured by the flow visual image capturing device,
The present invention relates to a head lamp internal air flow measuring apparatus for designing a head lamp so as to uniformly maintain the flow of internal air and to maximize the convective heat transfer phenomenon thereby to prevent the condensation phenomenon from occurring .

Description

Technical Field [0001] The present invention relates to a headlamp inside air flow measurement device,

The present invention relates to a head lamp internal air flow measuring apparatus, and more particularly, to a head lamp internal air flow measuring apparatus which visually displays an air flow in a space for securing a visible image of a head lamp, To a head lamp internal air flow measuring device for enabling a design to prevent a condensation phenomenon that can easily occur at the time of rainy weather and the like.

Generally, a headlamp is mounted in front of a vehicle such as an automobile to dim the front side so that night vision can be secured.

The head lamp includes a lamp case having a lens unit coupled to a front surface thereof and a lamp mounted at a rear portion of the lamp case. The lamp is sealed between the lamp unit and the lens unit, There is formed a space in which air is kept almost free from dust.

In addition, the lamp case is formed with a ventilation hole at the rear portion of the lamp case so as to relieve pressure rise due to volume expansion of the air due to heat generation during lighting and lighting of the lamp.

In the head lamp, the light emitted from the lamp is condensed through the lens unit and irradiated forward.

In the meantime, the head lamp generates buoyancy due to the temperature difference of the air in the air space due to the heat generated in the light emission process of the bulb, so that the flow is generated in the inside thereof. In the section where the flow is relatively weak and convective heat transfer does not occur When sudden temperature changes occur on the outer surface of the lens as the light bulb goes out and rain or car wash. When the internal temperature drops below the dew point temperature due to the temperature difference inside or outside the lens, And moisture is generated.

Korean Patent Application Publication No. 10-2009-0127377.

The present invention has been devised to solve the above-mentioned problems, and it is an object of the present invention to provide a head lamp which is capable of uniformly maintaining the flow of internal air, maximizing the convection heat transfer phenomenon caused thereby, The present invention has an object of providing a head lamp internal air flow measuring device for enabling a design.

As a specific means for achieving the object, there is a lens unit of the front and a rear part of the lens unit to form a space therein, a lamp is formed in the inner rear, and air can circulate in the rear of the lamp unit A head lamp having a space for securing a visible image formed between the lens unit and the lamp in the lamp case;

A colored air generating means for forming a vaporized fluidizing liquid which is vaporized by an exothermic reaction while maintaining a liquid phase at room temperature to form colored air in a space for securing a visible image;

A visualizing laser divergence device formed at a front surface of the headlamp and having at least one laser emitter which emits a flat laser beam to the front surface of the headlamp to form an image of visible airflow through reaction with colored air in a space for securing a visible image;

A moving visual image photographing device having at least one camera for photographing an air flow visible image formed in a visualized image securing space by a visualized laser diverging device;

And an analyzer for controlling the operation of the visualized laser divergence device and the flow visual image capturing device and for storing, analyzing and analyzing the air flow visual image captured by the visualized flow visual image capturing device.

As described above, according to the present invention, it is possible to measure the flow rate in the fast and slow regions in the design of the head lamp, thereby maximizing the convection heat transfer phenomenon in the design of the head lamp according to the improvement of the measurement accuracy. The effect of designing the headlamp can be obtained so that the phenomenon does not occur.

BRIEF DESCRIPTION OF THE DRAWINGS Fig.
2 is a sectional view of a head lamp of an apparatus for measuring an air flow inside a headlamp according to the present invention.
3 shows a first embodiment of the colored air generating means of the head lamp internal air flow measuring apparatus according to the present invention.
4 is a second embodiment of the colored air generating means of the head lamp internal air flow measuring apparatus according to the present invention.
5 is a third embodiment of the colored air generating means of the head lamp internal air flow measuring apparatus of the present invention.
6 is a schematic view of a visualized laser diverging device of an air flow measuring device in a headlamp according to the present invention.
7 is a view showing an air flow visible image formation state of an apparatus for measuring an air flow inside a headlamp according to the present invention.
FIG. 8 is a view showing an air flow visible image measurement state of the head lamp internal air flow measuring apparatus according to the present invention. FIG.
FIG. 9 is a schematic view of the air flow visible image measurement state of the head lamp internal air flow measuring apparatus of the present invention. FIG.

The terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms and the inventor may appropriately define the concept of the term in order to best describe its invention It should be construed as meaning and concept consistent with the technical idea of the present invention.

Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It should be understood that various equivalents and modifications may be present.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is an overall view of an air flow measurement device in a headlamp of the present invention, and FIG. 2 is a sectional view of a headlamp of an air flow measurement device in the headlamp of the present invention.

As shown in FIGS. 1 and 2, in the headlamp air flow measuring apparatus 1 of the present invention, in designing a headlamp, the flow rate of the air flowing in the fast and slow regions in the inner space is measured, The head lamp 100, the colored air generating means 200, the visualized laser diverging device 300, and the flow visualized image A photographing apparatus 400, and an analyzing unit 500.

The head lamp 100 includes a lens unit 110 on its front side and a lamp case 120 on the rear side of the lens unit 110 to form a space therein.

At this time, a lamp 121 is accommodated in the inner rear side of the lamp case 120, and a vent 122 for circulating air in the process of lighting and extinguishing the lamp 121 is formed on the rear side, Respectively.

A visible image securing space 130 is formed in the inside of the lamp case 120 so that the flow of air is visible to form an air flow visible image. The visible image securing space 130 includes a lens unit 110, And a space between the lamps 121 is formed.

The colored air generating means 200 is for forming colored air in the form of a smog in the head lamp 100. To this end, the colored air generating means 200 is provided with a vaporizing fluidizing liquid 201 The vaporized fluidizing liquid 201 is vaporized to form colored air in the visible image securing space 130 inside the head lamp 100.

Meanwhile, the colored air generating means 200 is capable of forming colored air in various ways by applying the vaporized fluidizing liquid 201.

First, referring to the first embodiment,

The vaporized fluidizing liquid 201 can be formed inside the head lamp 100 as shown in Figure 3. This means that the vaporized fluidizing liquid 201 can be vaporized and fluidized through the vent hole 122 formed in the lamp case 120 of the head lamp 100, The liquid 201 may be injected into the headlamp 100 and the injected vaporizing fluidizing liquid 201 may ideally be positioned on the bottom surface in the visible image securing space 130. [

That is, the injected vaporized fluidizing liquid 201 is vaporized due to the heat generated in the process of turning on and off the lamp 121 in the head lamp 100, thereby forming colored air in the visible image securing space 130 And the air thus formed can be relieved of the pressure rise due to the volume expansion.

Also, referring to the second embodiment,

4, a fluidized liquid vaporizer 210 having a heating structure such as a heater (not shown in the figure) or the like is applied while the vaporized fluidizing liquid 201 is charged, while the fluidized liquid vaporizer 210 210 can be accommodated inside the head lamp 100 and can be configured to be operable by operation of an external switch (not shown).

That is, in the fluidizing liquid vaporizer 210, when the power source is applied, heat is generated to vaporize the charged vaporized fluidizing liquid 201, thereby forming colored air in the visible image securing space 130.

In addition, according to the third embodiment,

5, a fluidized liquid vaporizer 210 having a heat generating structure such as a heater (not shown in the figure) or the like is applied while the vaporized fluidizing liquid 201 is charged, 210 are separately provided outside the headlamp 100 and can be configured to be operable by operation of a switch (not shown).

That is, in the fluidizing liquid vaporizer 210, when the power source is applied, heat is generated to heat the filled vaporized fluidizing liquid 201 to vaporize the vaporized liquid to form colored air. The generated air is introduced into a separate injection pipe A colored air is formed in the visible image securing space 130 by injecting the air into the head lamp 100 through the air vent 122 formed in the lamp case 120 by using the air vent 122.

Meanwhile, when applying the fluidizing liquid vaporizer 210 as described above, it is preferable that the fluidizing liquid vaporizer 210 is operated 10 to 20 seconds before the internal air flow state is taken to form colored air.

On the other hand, the vaporized fluidizing liquid 201 applied to the colored air generating means 200 is prepared by mixing 20% by weight of vegetable glycerin, 30% by weight of propylene glycol and 50% by weight of surfactant with 100% by weight of the vaporized fluidized liquid .

The visible laser divergence device 300 includes:

6, a planar laser beam is emitted toward the front lens unit 110 of the headlamp 100 to emit a laser beam in a visible image securing space (see FIG. 6) 130 to form an air flow visible image 10 in which the flow of air is visible. To this end, at least one laser emitter 310 for emitting a laser beam is provided, The diverging unit 310 may be configured to have upward, downward, leftward, and rightward sliding movements in consideration of the size and shape of the lens unit 110 although they are not shown in the figure.

The laser divergence device 310 of the visible laser divergence device 300 is preferably composed of one to three laser diverters 310, The optical lens 311 is controlled by the rotation operation so that the divergence of the laser in the vertical plane or in the form of a horizontal plane can be controlled by the rotation of the optical lens 311. In this case, So that it is possible to form an air flow visible image 10 in the form of a vertical plane or a horizontal plane in the visible image securing space 130 of the head lamp 100. [

That is, as described above, the laser can be diverted into a vertical plane or a horizontal plane so as to be applicable to various measurements according to the flow direction of the air in the head lamp 100.

The visualized visible light image radiographing device 400 is configured to be perpendicular to the visualized laser beam diverging device 300. The visible visible laser image radiographing device 300 can detect a flat air One or more cameras 410 capable of capturing a photograph and a moving image in a quantity proportional to the laser diver 310 of the visible laser diverging apparatus 300 are provided for photographing the flow visible image 10.

The camera 410 may be configured to have an upward, downward, leftward, and rightward sliding force corresponding to the laser diver 310 in consideration of the size and shape of the lens unit 110, There will be.

The analysis unit 500 controls the operation of the visualized laser divergence apparatus 300 and the flow visual image sensing apparatus 400 and displays the air flow visual image 10 And is configured to be capable of storing, analyzing, and displaying the image, and is configured in the usual PC form. An analysis program (an analysis program in the drawing) capable of analyzing the flow velocity based on the image captured by the flow visible- It is natural that it is constructed.

Hereinafter, the operation of the head lamp internal air flow measuring apparatus of the present invention having the above-described structure will be described in detail with reference to the accompanying drawings.

In designing a headlamp, it is necessary to measure the flow rate of the air in the fast and slow zones in the inner space, and to make the headlamp applicable to keep the inner flow rate uniform during designing As a result,

In order to do this, first, as shown in FIG. 1 and FIG. 2, a colored smog form air is formed in the visible image securing space 130 formed inside the head lamp 100, The air formation can be variously formed by the colored air generating means 200 as shown in FIGS. 3 to 5 using the vaporization fluidizing liquid 201 which maintains a liquid state at room temperature and is vaporized by an exothermic reaction.

Thereafter, an air flow visible image 10 is formed in the visible image securing space 130, and the visualized laser diverging device 300 is capable of using the laser diverging device 310 to the front surface of the lens unit 110 So that a planar laser beam is emitted.

That is, when the planar laser beam is emitted to the front surface of the lens unit 110 as described above, the planar laser beam is transmitted through the lens unit 110 to react with the colored air in the visible image securing space 130 Thereby forming an air flow visible image 10 in which the flow of air is visible.

Accordingly, it is possible to confirm the flow velocity of the air flowing in the inner space of the headlamp 100 through the air flow visible image 10 in which the flow of air is visible.

8, the air flow visible image 10 in which the flow of air is visible in a direction perpendicular to the visualized laser diverging device 300 is referred to as a flow visual image photographing device 400 And displays it on the analyzer 500 as shown in FIG. 9, and analyzes it through a storage and analysis program to confirm the flow tendency of the air inside the head lamp 100 .

Accordingly, it is possible to clearly understand the flow of the air in the air by analyzing the air flow rate and the tendency of the inside of the head lamp 100 as described above, and to control the condensation phenomenon generated in the lamp on the basis thereof, The present invention can be applied to an internal shape design of a vehicle.

On the other hand, the vaporized fluidized liquid used in the present invention is easily stored and applied because it exists as a liquid at room temperature and is vaporized by heat generation, and is more harmless to the human body than the solid powder particles commonly used as ordinary flowable particles Can be used.

In addition, when an oil such as olive oil used as ordinary flow visualizing particles is vaporized and used as a flow visualizing particle of a head lamp, the visualized particles are attached to the lens part during the experiment so that the head lamp should be replaced or the middle of the experiment On the other hand, even if the vaporized fluidized liquid applied to the present invention is applied to the lens portion, if the drying is performed in a hot air drier at 80 ° C for 10 minutes, the particles disappear and the head lamp can be reused. So that the phenomenon hardly occurs.

10: Air flow visual impression
100: head lamp 110: lens part
120: lamp case 121: lamp
122: Vents 130: Obtain visible image space
200: colored air generating means 201: vaporized fluidizing liquid
210: fluidized liquid vaporizer
300: Visualization laser divergence device 310: Laser divergence device
311: Optical lens
400: Moving visible image photographing device 410: Camera
500: Analytical Department

Claims (4)

The front lens unit 110 is coupled to the rear of the lens unit 110 to form a space therein and a rear lamp 121 is formed on the inner rear side of the lamp unit 110. Air circulation And a visible image securing space 130 formed between the lens unit 110 and the lamp 121 inside the lamp case 120 is formed in the lamp case 120. The head lamp 100 );
Colored air generating means (200) for forming a colored air in the visible image ensuring space (130) by forming a vaporizing fluidizing liquid (201) which maintains a liquid state at room temperature and is vaporized by an exothermic reaction;
And at least one laser divergence which is spaced from the front surface of the head lamp 100 and emits a flat laser beam to the front surface of the head lamp 100 to react with the colored air in the visible image securing space 130 to form an air- A visible laser divergence device 300 provided with a laser 310;
A flow visual image pickup device (400) provided with at least one camera (410) for photographing an air flow visible image formed in a visible image securing space (130) by a visible laser emitting device (300);
An analyzing unit for controlling the operation of the visualized laser diverging apparatus 300 and the flow visual image capturing apparatus 400 and for displaying, storing, analyzing and analyzing the air flow visual image captured by the flow visual image capturing apparatus 400, (500);
The colored air generating means (200)
The vaporizing fluidizing liquid 201 is injected into the interior of the headlamp 100 via the vent hole 122. The injected vaporizing fluidizing liquid 201 is supplied to the inside of the headlamp 100, It is possible to form colored air in the visible image securing space 130 by evaporation due to heat generation in the light extinguishing process and to relieve pressure rise due to volume expansion of the air,
And a fluidizing liquid vaporizer 210 having a heat generating structure by a power source operation and being accommodated inside the head lamp 100. The fluidizing liquid vaporizer 210 is configured to be accommodated in the head lamp 100 by an external switch operation, (210) is operated to form colored air,
And a fluidizing liquid vaporizer 210 having a heat generating structure by a power supply operation is formed and is formed outside the head lamp 100 while the fluidized liquid vaporizer 210 is operated Wherein the head lamp (100) is formed of colored air outside the head lamp (100) and injected into the head lamp (100) through the vent hole (122).
The method according to claim 1,
The vaporization fluidizing liquid (201)
Wherein 20% by weight of vegetable glycerin, 30% by weight of propylene glycol, and 50% by weight of surfactant are contained in 100% by weight of the vaporized fluidizing liquid.
The method according to claim 1,
The visualization laser divergence device (300)
The laser diffuser 310 may include one to three laser diffusers 310 and the front surface of the laser diffuser 310 may further include an optical lens 311 that allows adjustment of a planar laser to a vertical plane or a horizontal plane Wherein the air flow measuring unit measures the air flow inside the head lamp.

The method according to claim 1,
Wherein the camera (410) of the flow visible image pickup device (400) is configured to be proportional to the quantity of the laser beam emitter (310).
KR1020150063319A 2015-05-06 2015-05-06 Headlamps inside air flow measurement device KR101716953B1 (en)

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Publication number Priority date Publication date Assignee Title
CN109470638B (en) * 2018-10-31 2021-05-07 上海禾赛光电科技有限公司 Laser gas detection device

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100220049B1 (en) 1996-12-20 1999-09-01 정몽규 Flow type detecting system for improvement of cooling water
JP2005300515A (en) * 2004-03-17 2005-10-27 Yokohama National Univ Three-dimensional flow field visualization method and device, and refractive index changing fluid for visualization device
JP2007298312A (en) 2006-04-28 2007-11-15 Kaneka Corp Method of visualizing flow of gas

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0694741A (en) * 1992-09-11 1994-04-08 Ricoh Co Ltd Flow measuring apparatus
KR20090127377A (en) 2007-04-03 2009-12-10 무토 고교 가부시키가이샤 Spectrophotometer and method

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100220049B1 (en) 1996-12-20 1999-09-01 정몽규 Flow type detecting system for improvement of cooling water
JP2005300515A (en) * 2004-03-17 2005-10-27 Yokohama National Univ Three-dimensional flow field visualization method and device, and refractive index changing fluid for visualization device
JP2007298312A (en) 2006-04-28 2007-11-15 Kaneka Corp Method of visualizing flow of gas

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