KR101534924B1 - Position lamp radiant heat device - Google Patents

Abstract

In the present invention, the diffusion of air through vibration is induced by using the vibration member, thereby improving the heat radiation performance of the heat sink. Thus, the LED position lamp lighting installed around the beam of the head lamp irradiates the high temperature heat So that the heat can be dissipated more smoothly.
As a result, a position lamp heat dissipating device capable of ensuring the lifetime of the LED illumination and securing a stable light quantity can improve the durability and performance of the LED illumination.

Description

A POSITION LAMP RADIANT HEAT DEVICE

The present invention relates to a position lamp heat dissipating device capable of enhancing the heat dissipation performance of an LED position lamp, securing the lifetime of the LED, and securing a stable light amount, thereby improving the durability and performance of the LED lighting.

Generally, a vehicle is provided with an equalizing device for transmitting illumination and signals for informing other users of the vehicle, the road, and the road on the front, rear, and side. Particularly, a head lamp installed in a vehicle is configured in the front portion so as to secure a driver's view at night.

As such an equalizing device, various lighting devices can be used. In recent years, a lighting device utilizing a semi-permanently usable LED (Light Emitting Diode) device has been used because of its small size and high design freedom. These LED lights are increasingly used due to their high efficiency and environmental friendliness.

In recent years, a function of an equalizing device has been added, and position lamps have been used for improving heat generation performance and design. Such position lamps can be variously formed according to the design and function of the vehicle, but are usually configured to be installed around the head lamp.

Such position lamps use LED lighting with high efficiency and high degree of freedom in design. Generally, LED lighting generates heat at a high temperature when emitting light, and there is a problem that luminous efficiency is greatly deteriorated by the heat of high temperature. Therefore, The reliability and stability of the apparatus were deteriorated.

In order to solve this problem, a heat dissipation structure is applied to the LED lighting fixture. As a heat dissipation scheme of the LED lighting, a cooling fan is used, water is circulated, or a heat dissipating plate of a material having a high thermal conductivity is installed .

However, in the case of a position lamp installed in the vicinity of the headlamp, an additional power is required to drive the fan when the cooling system is used, and a separate cooling water line is required for cooling using the cooling water. There is a risk of electric leakage and fire. In addition, the installation space of the position lamp is narrow, and the heat radiation method using the cooling fan and the cooling water is limited to the position lamp side.

On the other hand, the method using a heat sink having a high thermal conductivity is excellent in terms of cost and structure, and does not occupy a large space for installation, but the cooling efficiency is not sufficient by using only a material having high thermal conductivity.

It should be understood that the foregoing description of the background art is merely for the purpose of promoting an understanding of the background of the present invention and is not to be construed as an admission that the prior art is known to those skilled in the art.

Published Patent Publication No. KR10-2011-0008822 A (2011.01.27)

The present invention has been proposed in order to solve such a problem, and it is an object of the present invention to provide a position lamp heat dissipating device capable of improving the durability of an LED lamp by securing the lifetime of the LED lamp, The purpose is to provide.

According to an aspect of the present invention, there is provided a position lamp heat dissipating device comprising: an LED illumination unit mounted on a periphery of a head lamp of a vehicle to emit light; A heat sink installed at the rear of the LED lighting and configured to discharge heat radiated from the LED lighting to the outside; And a heat dissipating plate disposed to face the heat dissipation plate and spaced apart from each other by a predetermined distance to form an air flow space. When power is applied, vibration is generated to induce diffusion of air in the air flow space to activate heat exchange between the heat dissipation plate and the diffused air And an oscillating member.

The heat radiating plate may be disposed on the outer periphery of the head lamp, and a plurality of heat radiating fins may be formed along the periphery of the heat radiating plate to radiate heat to the outside through the through holes.

The vibration member may be installed so as to face a heat radiating plate corresponding to the LED lighting installed on the upper side of the head lamp.

Wherein the vibration member comprises: a vibrator that generates vibration at a preset frequency when power is applied; A retainer fixed to the head lamp and extending from the head lamp in the front and rear direction of the heat radiating plate and provided so as to face the vibrating heat radiating plate at the extended end; And an elastic portion provided at a contact portion between the vibrator and the retainer to absorb vibrations.

The vibrator vibrates in the forward and backward directions when the power is applied, so that the air in the air flow space can flow and diffuse toward the heat sink.

The retainer is installed in the head lamp via the vibration absorbing member, and a plurality of the retainers extend from the head lamp so that the upper and lower ends of the vibrator are connected to each other, and the extended ends are bent to surround the upper and lower ends of the vibrator.

The resilient portion is constituted by a cushioning rubber so as to absorb vibration of the vibrator, and may be provided between the upper end and the lower end of the retainer and the vibrator, respectively.

The heat sink is provided with a temperature sensor for detecting the temperature elevated by the LED illumination, and the amplitude of the vibration member can be controlled according to the temperature measured through the temperature sensor.

The vibration member increases the amplitude of the vibration member as the temperature measured through the temperature sensor increases, and decreases the amplitude of the vibration member as the temperature decreases.

In the position lamp heat dissipating device having the above-described structure, the diffusion flow of the air is induced by the vibration using the vibration member, so that the heat of the high temperature generated by the LED position lamp lamp installed around the beam of the head lamp irradiates the light The heat can be dissipated more smoothly.

Thus, the lifetime of the LED illumination can be ensured and the durability and performance of the LED illumination can be improved by securing a stable light amount.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a position lamp heat dissipating apparatus according to an embodiment of the present invention; FIG.
3 to 4 are perspective views of a position lamp heat dissipation device of the present invention.
5 to 6 are sectional views of the position lamp heat dissipating device shown in Fig.

Hereinafter, a position lamp heat dissipating device according to a preferred embodiment of the present invention will be described with reference to the accompanying drawings.

To enhance the heat radiation performance of the LED position lamp installed around the low beam or the upper beam of the head lamp 20 of the present invention. Hereinafter, the present invention will be described as being installed in the low beam in the description.

As shown in Figs. 1 and 2, a low beam installed in a vehicle radiates heat of high temperature as it irradiates a strong beam. This heat is transferred to the periphery of the low beam lamp as it is, and high temperature heat is concentrated on the head lamp 20, especially as the high temperature heat is raised.

Here, in the case of an LED position lamp installed in the vicinity of a low beam, a heat dissipating function capable of dissipating heat at high temperature is required to be transmitted to the heat generated from the low beam as well as the heat generated by itself.

In addition, the present invention can be applied not only to an LED position lamp of a vehicle, but also to an illumination device that can dissipate heat of a low beam itself and emit heat at a high temperature as the light is irradiated.

FIGS. 3 to 4 are perspective views of the position lamp heat dissipating device of the present invention, and FIGS. 5 to 6 are sectional views of the position lamp heat dissipating device shown in FIG. The position lamp heat dissipating device of the present invention comprises: an LED illumination (100) mounted on a periphery of a head lamp (20) of a vehicle to emit light; A heat sink (200) installed at the rear of the LED lighting (100) and discharging the heat emitted from the LED lighting (100) to the outside; And an air flow space 40 is formed at a rear portion of the heat dissipation plate 200 so as to face the air flow space 40. When power is applied, vibration is generated to induce diffusion of air in the air flow space 40, (300) for activating the heat exchange between the air (200) and the diffused air.

Here, the LED illumination 100 is installed around the low beam, and may be variously installed to improve the design or to secure a light amount. The LED lighting 100 is provided with a heat sink 200 for dissipating heat generated by light emission. In this case, a cooling fan may be used or a cooling water may be circulated in order to dissipate heat generated by light irradiation. However, a heat radiating plate 200 ), It is possible to obtain a superior cost and structure, and sufficiently ensure heat radiation performance.

The heat sink 200 may be installed on the outer circumference of the head lamp 20 and may include a plurality of heat dissipation fins 220 along the circumference thereof to discharge heat to the outside through the through holes. That is, the heat sink 200 absorbs heat generated from the LED light 100 and emits heat through heat exchange with the air. The structure of the heat sink 200 is variously known, The specific shape and structure of the heat sink 200 applied in the invention are not limited.

The vibration member 300 is provided at the rear of the heat sink 200 for discharging the heat generated from the LED illumination 100 to the outside. The vibration member 300 is spaced apart from the heat sink 200 by a predetermined distance to form an air flow space 40. The vibration member 300 may apply the same power as the LED position lamp so that the LED light 100 may be vibrated at the same time when the LED illumination 100 is turned on. 42 are allowed to flow at a high speed so that the heat exchange between the heat sink 200 and the air can be activated.

The air 42 in the air flow space 40 formed between the heat sink 200 and the vibrating member 300 diffuses and flows at a high speed as the vibrating member 300 vibrates, 220, the air is circulated rapidly and the heat exchange is activated. Accordingly, the temperature rise of the LED illumination 100 can be prevented by increasing the inventive performance of the heat sink 200.

The vibration member 300 may be installed so as to face the heat sink 200 corresponding to the LED illumination 100 installed above the head lamp 20. In the present invention, as shown in FIGS. 1 and 2, the high-temperature heat generated as the strong light is irradiated from the low beam is transmitted to the periphery of the low-beam lamp, As shown in Fig.

That is, the heat of high temperature is transmitted to the LED illumination 100 installed on the upper side of the head lamp 20, and the vibration member 300 is mounted on the heat radiating plate 100 corresponding to the LED illumination 100 installed on the upper side of the head lamp 20 200) so as to improve the heat radiation performance locally at the portion where the heat is concentrated.

Of course, the vibration member 300 may be installed around the head lamp 20 to improve the heat radiation performance. However, since the manufacturing cost is increased, the vibration member 300 is locally applied to the heat- .

Meanwhile, the vibration member 300 of the present invention includes a vibrator 320 that generates vibration at a preset frequency when power is applied thereto; A retainer 340 fixed to the head lamp 20 and extended from the head lamp 20 in the front and rear direction of the heat sink 200 and provided at the extended end thereof so that the vibrator 320 faces the heat sink 200; And an elastic part 360 provided at a contact part between the vibrator 320 and the retainer to absorb vibration.

Here, the set frequency of the vibrator 320 may be set to a frequency band in which the air flows at the highest speed. This can be set in consideration of the structure of the head lamp 20, the shape of the heat sink 200, and the specifications of the vibrator 320, and can be set appropriately according to the vehicle.

When the power is applied, the vibrator 320 is vibrated in the forward and backward directions to diffuse the air. Since the vibration of the vibrator 320 is operated in the forward and backward directions so that the air 42 in the air flow space 40 is prevented from being radiated to the heat sink 200, As shown in Fig.

Here, the distance between the vibrator 320 of the vibration member 300 and the heat sink 200 should be set to maintain an appropriate distance. The present invention is configured to increase the flow of air through the vibration of the vibrator 320 and increase circulation with the heat sink 200 as the flow rate of the air increases.

In particular, if the distance between the vibrator 320 and the heat sink 200 is increased, the air flow rate due to the vibration of the vibrator 320 is set differently according to the distance between the vibrator 320 and the heat sink 200. However, The air that has been diffused by the vibration of the vibrator 320 may not reach the heat sink 200 and may not be smoothly circulated thermally. If the distance between the vibrator 320 and the heat sink 200 is too close, Heat may be transmitted to the heat dissipating plate 200 to degrade heat dissipation performance.

Accordingly, the distance between the vibrator 320 and the heat sink 200 should be set to optimize the diffusion of air. This is because the diffusive flow of air differs depending on specifications of the heat sink 200 and the vibrator 320, It is desirable to set the value through an experiment value that can be optimally made.

The retainer 340 is provided on the head lamp 20 via a vibration absorbing member and extends a plurality of times from the head lamp 20 to connect the upper and lower ends of the vibrator 320, So that the upper and lower ends of the vibrator 320 can be enclosed.

Since the retainer 340 configured to support the vibrator 320 is directly connected to the vibrator 320, vibrations are transmitted as it is when the vibrator 320 is operated. When the retainer 340 has no structure for absorbing vibrations transmitted from the vibrator 320, there is a problem that the retainer 340 is directly transferred to the assembly of the headlamp 20 on which the retainer 340 is installed, The vibration and vibration of the vibrator 320 may cause problems such as separation and breakage.

Therefore, the retainer 340 of the present invention should be constructed so as to have durability against vibration. By installing the retainer 340 on the head lamp 20 via the vibration absorbing member, the vibration transmitted from the vibrator 320 can be absorbed by the vibration absorbing member The vibration of the vibrator 320 can be prevented from being transmitted to the head lamp 20 as it is.

On the other hand, the extended end of the retainer 340 is bent so as to surround the upper and lower ends of the vibrator 320, and the elastic part 360 composed of a cushion rubber is mounted on the upper and lower ends of the vibrator 320 to absorb vibration. The resilient portion 360 is provided at the upper and lower ends of the retainer 340 and the vibrator 320 to absorb vibrations so that vibrations generated in the vibrator 320 are not transmitted to other components through the retainer 340 can do.

The heat sink 200 is provided with a temperature sensor 60 for sensing the temperature elevated by the LED illumination 100 and the amplitude of the vibration member 300 is controlled according to the temperature measured through the temperature sensor 60 . Here, the vibration member 300 increases the amplitude of the vibration member 300 as the temperature of the heat sink 200 measured through the temperature sensor 60 increases, and when the temperature decreases, the amplitude of the vibration member 300 .

The vibration operation of the vibration member 300 can be controlled using a control unit (ECU: Electronic Control Unit) provided in the vehicle. The control unit receives the temperature information of the heat sink 200 raised by the LED illumination 100 through the temperature sensor 60 and adjusts the amplitude of the vibration member 300 in accordance with the temperature so that efficient heat radiation is achieved can do.

The control unit may be provided with a reference temperature value for causing the vibration member 300 to vibrate. The reference temperature value is a reference value for stably operating the LED position lamp. The reference temperature value can be set to an appropriate value according to the specifications of the LED position lamp and the heat radiation performance of the heat sink 200.

In this way, the control unit is provided with a reference temperature value, and the temperature of the heat sink 200 whose temperature is raised by the LED position lamp is measured, and when the reference temperature value is exceeded, the vibration member 300 is vibrated. In addition, when the temperature of the heat sink 200 is continuously increased beyond the reference temperature value, the amplitude of the vibrator 320 is gradually increased so that the temperature rise can be efficiently coped with.

The position lamp heat dissipating device having the above-described structure guides the diffusion flow of air through the vibration by using the vibration member 300 so that the LED position lamp lamp installed around the beam of the head lamp 20 irradiates the light The generated high temperature heat can be released more smoothly. Thus, the lifetime of the LED illumination 100 can be ensured and the durability and performance of the LED illumination can be improved by securing a stable amount of light.

While the present invention has been particularly shown and described with reference to specific embodiments thereof, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the following claims It will be apparent to those of ordinary skill in the art.

100: LED lighting 200: heat sink
220: heat sink fin 300:
320: Oscillator 340: retainer
360: elastic part

Claims (9)

A LED light emitting at the periphery of the head lamp of the vehicle;
A heat sink installed at the rear of the LED lighting and emitting heat radiated from the LED lighting to the outside; And
The air flow space is formed by being spaced apart from each other at a predetermined distance behind the heat dissipation plate. When power is applied, vibration is generated to induce diffusion of air in the air flow space, thereby activating heat exchange between the heat dissipation plate and the diffused air And a vibration member,
The vibration member
A vibrator that generates vibration at a set frequency upon power application;
A retainer fixed to the head lamp and extending in the front-rear direction of the heat radiating plate in the headlamp, the retainer being provided on the extended end so that the vibrator faces the heat sink;
And an elastic portion provided at a contact portion between the vibrator and the retainer to absorb vibrations. The method according to claim 1,
Wherein the heat radiating plate is disposed on an outer periphery of the head lamp, and a plurality of radiating fins are formed along the periphery of the heat radiating plate to radiate heat to the outside through the through holes. The method according to claim 1,
Wherein the vibration member is installed so as to face a heat radiating plate corresponding to the LED lighting installed on the upper side of the head lamp. delete The method according to claim 1,
Wherein the vibrator vibrates in the forward and backward directions when the power is applied to cause the air in the air flow space to flow and diffuse toward the heat sink. The method according to claim 1,
Wherein the retainer is installed in the head lamp via a vibration absorbing member and extends a plurality of times in the head lamp so that the upper and lower ends of the vibrator are connected to each other and the extended ends are bent to surround the upper and lower ends of the vibrator. Claim 6
Wherein the elastic portion is constituted by a cushioning rubber so as to absorb vibration of the vibrator, and is provided between the upper end and the lower end of the retainer and the vibrator, respectively. The method according to claim 1,
Wherein the heat sink is provided with a temperature sensor for detecting the temperature elevated by the LED illumination and the amplitude of the vibration member is controlled according to the temperature measured through the temperature sensor. The method of claim 8,
Wherein the vibration member increases the amplitude of the vibration member as the temperature measured through the temperature sensor increases and decreases the amplitude of the vibration member as the temperature decreases.

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