KR101233340B1 - Vehicular Headlamp and Manufacturing Method - Google Patents

Abstract

The present invention relates to a light emitting diode (LED) light source module of a headlamp for a vehicle, and more particularly, to an LED light source module that can replace a light source module of a headlamp more easily and quickly when a vehicle headlight is damaged due to a contact accident or the like. In addition, the present invention relates to a removable LED light source module having improved heat dissipation, dustproof, and moisture proof structure.
More specifically, according to the present invention, at least one electrical wiring hole is formed, the platform is formed integrally with the vehicle frame; A platform lens seated on the platform and having at least one coupling hole formed therein to which the electrical wiring passing through the electrical wiring hole and the LED light source module are coupled; A connector formed at an end of the electrical wiring; And an LED light source module inserted into the coupling hole of the platform lens and detachably coupled to the connector.

Description

Vehicle headlights and manufacturing method thereof {Vehicular Headlamp and Manufacturing Method}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light emitting diode (LED) light source module of a vehicle headlight, and more particularly, to a headlight having an LED light source module which can replace a light source module of a headlight more easily and quickly when a vehicle headlight is damaged due to a contact accident or the like. . In addition, the present invention relates to a removable LED light source module having improved heat dissipation, dustproof, and moisture proof structure.

It is common for automobiles to be equipped with various kinds of equalization means. For example, i) headlights are installed in front of the vehicle to illuminate the front of the night light to secure the driver's watch, and ii) fog lights used as a kind of auxiliary headlights by irradiating color light having good transparency in the fog; iii) Brake lights installed at the rear of the vehicle to turn on when the brakes are operated according to the driver's intention, and to prevent collision accidents. iv) Directional indicators installed at the front and rear of the vehicle to inform other vehicles of the direction of the vehicle. Equalization means.

Among these, the headlights are to be essentially turned on to secure the clock ahead when driving at night, which is one of the indispensable means for achieving safe driving of the vehicle.

Currently, light sources used in vehicle headlights include halogen lamps or high intensity discharge (HID) lamps. ① Halogen lamps are widely used because of their low cost, but the filament's lighting temperature is designed to be high, and overvoltage lighting can cause the halogen cycle to lose parallelism, resulting in a markedly shortened service life. ② On the other hand, HID lamps have a long life due to low heat load due to the characteristics of discharge lamps using gas emission.However, if the coupling conditions between the ballast and the lamp are not met, the lifespan is considerably shortened. Since excessive voltage (20,000V or more) is generated, there is a problem in that the lamp fuse needs to be replaced with a class 20A in order to use it, and the unit cost thereof is several to several tens of times higher than that of a halogen lamp.

In order to solve this problem, research on vehicle headlamps using LED lamps as a light source is being actively conducted.

In particular, LED is widely used as an electronic display component for various electronic products because of its semiconductor characteristics, showing great advantages in processing speed, power consumption, and lifespan. It is attracting attention as a light source. In other words, LED lamps can be an efficient light source due to lower power consumption than conventional light bulbs, and because the LED elements themselves have a variety of colors, color rendering is more color rendering than conventional lighting, coatings, and filters. This is very excellent. In addition, the LED lamp is excellent in durability, it is possible to obtain a reduction effect on the maintenance cost of the headlight for the existing vehicle, that is, replacement cost.

However, the LED lamp module according to the prior art adopts a structure in which the LED light source is integrally located in the head lamp module, so that the headlamp module itself in case of damage or failure failure of the headlamp due to a vehicle accident or the like occurs. There was a problem that must be replaced.

In general, the headlights of automobiles have a cover assembled on the front surface of the housing, and a packing along the circumference of the headlight housing and the windshield is assembled to prevent external moisture or dust from entering through the joint surface. It is taking structure. That is, when the headlamp module using the LED light source is configured in such a structure, the heat dissipation characteristics are weakened, thereby shortening the life of the module.

Therefore, i) it is possible to easily repair the damage of the headlight by replacing only the LED light source without having to replace the headlamp module itself, ii) improve the heat dissipation characteristics of the module by using the air flowing in the vehicle, and iii) the LED There is a need for a headlamp module capable of improving the dustproof / moistureproof characteristics of a light source.

The present invention has been made to solve the above-described problems of the prior art, by adopting a method of replacing only the LED light source module detachably without replacing the housing of the headlamp for the vehicle, to facilitate the replacement of the lamp, the replacement cost The purpose is to provide an LED light source module for saving.

In addition, another object of the present invention is to provide an LED light source module that can be designed in a compact form by using the vehicle body frame as a part of the housing of the LED light source module.

In addition, the present invention by adopting a platform that can use the forced convection method of air when driving the vehicle to increase the heat dissipation effect, by adopting a dust-proof / moisture-proof structure for the LED light source module itself, to improve the degree of freedom of the design of the headlight module for the vehicle Another object is to provide an LED light source module.

The technical objects to be achieved by the present invention are not limited to the above-mentioned technical problems, and other technical subjects which are not mentioned can be clearly understood by those skilled in the art from the description of the present invention .

According to an aspect of the present invention for solving the above problems of the prior art, at least one electric wiring hole is formed, the platform is formed integrally with the vehicle frame; A platform lens seated on the platform and having at least one coupling hole formed therein to which the electrical wiring passing through the electrical wiring hole and the LED light source module are coupled; A connector formed at an end of the electrical wiring; And an LED light source module inserted into the coupling hole of the platform lens and detachably coupled to the connector.

In the present invention, the LED light source module is coupled to the connector, the LPMF (LED PCB Module Fixer) is mounted on the platform across the electrical wiring hole; A conjugate formed on the LPMF; A printed circuit board (PCB) formed on the assembly; At least one LED light source formed on the PCB; And an LED lens sealing the upper portion of the LED package.

The present invention preferably further comprises a stator at a coupling portion of the LPMF (LED PCB Module Fixer) and the connector.

In the present invention, the LPMF and the junction is provided with a through hole in the center thereof, the PCB and the connector is preferably connected by an electrical wiring formed along the through hole.

In the present invention, it is preferable that the LED lens is formed such that the LED light source, the PCB, and the assembly are not exposed to the outside.

In the present invention, it is preferable that the conjugate has a bonding strength of 1.0 Nm to 20.0 Nm.

In the present invention, the printed circuit board (PCB) preferably has a thermal conductivity of 20 W / m · k to 200 W / m · k.

In the present invention, the platform, it is preferable to form at least one or more platform perforations for inflow or outflow of air around the electrical wiring hole.

In the present invention, the platform lens is preferably formed of a transparent resin.

The present invention preferably further comprises a fixed type LED light source module on a predetermined area of the platform where the electric wiring hole is not formed.

The present invention preferably further comprises a redirection module for changing the direction of the light source of the LED light source module in a predetermined region of the platform lens.

According to another aspect of the present invention for solving the above problems of the prior art, a method of manufacturing a replaceable LED module of a headlamp for a vehicle, comprising the steps of: forming the platform on the body frame; Mounting the platform lens on the platform; And coupling the LED light source module and the connector of the end portion of the electrical wiring through the coupling hole of the platform lens.

According to the present invention, it is possible to easily replace the lamp by reducing the replacement cost by adopting a method of replacing only the LED light source module detachably without replacing the housing of the headlamp for a vehicle.

In addition, unlike the method of assembling and sealing various lamps including a heat dissipation module in the housing of a conventional vehicle headlight according to the present invention, the vehicle body frame is used as a part of the housing of the LED light source module to compact the appearance or design of the vehicle. There is an effect that can be designed in the form.

In addition, according to the present invention there is an effect of minimizing the cost of the heat dissipation components by the platform that can use the forced convection method of air when driving the vehicle.

In addition, according to the present invention, by adopting the dust-proof / moisture-proof structure for the LED light source module from the dust-proof / moisture-proof structure of the existing housing itself, there is an effect of improving the degree of freedom of the design of the headlamp module for a vehicle.

1a to 1b is a configuration diagram of a replaceable LED module of a headlamp for a vehicle according to an embodiment of the present invention.
2a to 2b is a perspective view and an exploded perspective view of the LED light source module according to an embodiment of the present invention.
Figure 3 is an exemplary view showing a state in which the LED light source module is coupled to the platform according to an embodiment of the present invention.
Figure 4 is an exemplary view showing a coupling state of the LED light source module and the connector according to an embodiment of the present invention.
5a to 5b is an exemplary view of the interchangeable LED module of the vehicle headlamp in the state that the LED light source module is coupled according to an embodiment of the present invention.
Figure 6 is a flow chart of a method of manufacturing a replaceable LED module of a headlamp for a vehicle according to an embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined. Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

The existing head lamp module of a vehicle headlight has a structure in which an LED light source is located in the head lamp module. Therefore, when the headlamp module itself is replaced when the headlamp module is damaged or malfunctions due to a contact accident of the vehicle, the replacement cost increases. The present invention has been devised in order to solve the above problems by using a part of the body frame as the housing of the headlamp and simply replace the LED light source without having to replace the headlamp module itself, and can easily repair the damage of the headlamp. .

1a to 1b is a block diagram of an interchangeable LED module of a headlamp for a vehicle according to an embodiment of the present invention.

According to an aspect of the present invention for solving the above problems of the prior art, at least one electric wiring hole is formed, the platform is formed integrally with the vehicle frame; A platform lens seated on the platform and having at least one coupling hole formed therein to which the electrical wiring passing through the electrical wiring hole and the LED light source module are coupled; A connector formed at an end of the electrical wiring; And an LED light source module inserted into the coupling hole of the platform lens and detachably coupled to the connector.

The platform 140 is formed with at least one electrical wiring hole, and integrally formed in the vehicle body frame, but may be formed of an iron (Fe) -based steel sheet or an aluminum (Al) -based alloy steel sheet, but may be used in a vehicle body. Any metal material may be used. In addition, the platform 140 may be integrally formed with a bonnet, a bumper, or a fender that is a part of the vehicle body.

The platform 140 may form at least one platform perforation 141 for introducing or discharging air around the electric wiring hole. When the platform perforation 141 is formed as described above, air may naturally flow in or out when the vehicle is driven, thereby increasing the heat radiation effect of the LED light source module 110.

The platform lens 130 may be seated on the platform 140, and may form at least one coupling hole to which the electric wiring 160 penetrating the electric wiring hole and the LED light source module 110 are coupled.

The platform lens 130 serves to diffuse or disperse the light emitted from the LED light source module 110, it may be formed of a transparent or semi-transparent material, such as transparent clarity.

In the present invention, it is preferable that the fixed LED light source module 180 is further provided on a predetermined region of the platform 140 on which the electric wiring hole is not formed. That is, the LED light source module 180 that does not need to be replaced according to the frequency of use and the reliability life of the LED light source is formed in a fixed form, so that the coupling hole is not formed in the platform lens 130 and fixed on the platform 140. Can be.

The present invention may further include a direction switching module 120 for switching the direction of the light source emitted from the LED light source module 110 in a predetermined region of the platform lens 130. The direction change module 120 may be connected to the control unit of the vehicle and serve to convert the angle of the platform lens 130 to up, down, left and right. Therefore, the light distribution of the LED light source module is also switched according to the angle change of the platform lens 130 by the redirection module 120.

2A to 2B are perspective and exploded perspective views of the LED light source module according to an embodiment of the present invention.

In the present invention, the LED light source module 110 is inserted into the coupling hole of the platform lens 130, it is detachably coupled to the connector 170 so as to span the electrical wiring hole of the platform 140.

In this way, the LED light source module 110 is coupled to the connector 170, LPMF (LED PCB Module Fixer) 115 is formed on the LPMF to be seated on the platform 140 over the electric wiring hole Bonding body 114, a printed circuit board (PCB) 113 formed on the assembly, at least one LED light source 112 formed on the PCB and the LED lens 111 for sealing the upper portion of the LED package. It may be formed to include.

The PCB 113 is connected to an electrical wiring to apply electrical power to the individual LED light sources 112 and to discharge heat generated by the LED light sources 112. Thus, in order to improve heat dissipation, the printed circuit board (PCB) 113 preferably has a thermal conductivity of 20 W / m · k to 200 W / m · k.

The LPMF (LED PCB Module Fixer) 115 is coupled to the connector 170 formed at the end of the electrical wiring, and serves to seat the LED light source module 110 on the platform 140 over the electrical wiring hole. . In the present invention, the connector 170 is formed at the end of the electrical wiring to improve the dustproof or moisture-proof effect of the LED light source module 110 serves to improve the reliability of the module.

The assembly 114 serves to bond the PCB 113 and the LPMF 115, and is formed using a material having a bonding strength of 1.0Nm to 20.0Nm to ensure the stability and reliability of the module. desirable.

The LED lens 111 is provided to diffuse the light emitted from the LED light source 112. Particularly, in the present invention, in order to increase the dust / moisture-proof effect of the LED light source module, the LED lens 111 is formed by sealing up to the side of the LPMF 115. When the LED lens 111 is formed as described above, the LED light source 112, the PCB 113, and the assembly 114 are not exposed to the outside, thereby ensuring high lifetime and high efficiency of the LED light source module.

The present invention may further include a stator 116 at a coupling portion of the LPMF 115 and the connector 170, and may further solidify the coupling of the LED light source module and the connector 170 by the stator 116. This contributes to improving the reliability of the module.

3 is an exemplary view showing a state in which the LED light source module is coupled to the platform according to an embodiment of the present invention.

As described above, the connector 170 formed at the end of the LED light source module 110 and the electrical wiring 160 in the present invention is to be detachably coupled, by adopting a removable coupling structure of the LED light source module, a vehicle In case of damage to the headlights, there is an advantage that the vehicle can be operated normally by simply replacing the new LED light source module.

That is, in one embodiment of the detachable coupling structure, the LPMF 115 and the junction body 114 of the LED light source module are formed to have a through hole at the center thereof, and the PCB 113 and the connector 170 may have a through hole. It may be formed to be connected by the electrical wiring formed along. That is, it will be desirable to form an electrical wiring in the lower portion of the PCB 113 for applying power to the LED light source 112 to be detachably coupled to the connector 170.

LPMF 115 of the LED light source module is inserted into the coupling hole of the platform lens 130, it will be preferably formed in the shape of a 'hook' so as to span the electrical wiring hole of the platform 140. In addition, the LPMF 115 may form a fixing protrusion or a fastening protrusion for coupling with the connector 170, and the connector 170 may be coupled to form a fixing groove or a fastening groove.

Referring to FIG. 3, the platform perforation 141 is formed around the electric wiring hole on which the LED light source module is seated. However, air is forced into the vehicle while driving, thus contributing to improvement of heat dissipation characteristics. In addition, due to the platform lens 130 located on both sides of the LED light source module can increase the light distribution and diffusion effect of the light.

Figure 4 is an exemplary view showing a state of coupling between the LED light source module and the connector according to an embodiment of the present invention.

As shown in FIG. 4, the LED light source module 110 may be inserted into the coupling hole of the platform lens 130 and may be coupled to the connector 170 in a one-touch manner. In this process, the fixing and coupling of the LED light source module 110 can be further solidified using the stator 116.

Thus, in the present invention, since the individual LED light source module 110 can be detachably coupled or separated, there is an advantage that can easily complete the manufacture or replacement of the module.

5a to 5b is an exemplary view of the interchangeable LED module of the vehicle headlamp in the state in which the LED light source module is coupled according to an embodiment of the present invention.

Referring to FIG. 5A, as an exemplary view showing the front of the headlamp, it can be seen that the fixed LED light source module 180, the replaceable LED light source module 110, and the redirection module 120 are located. 5B is a cross-sectional view of the headlight side, and since a part of the vehicle body is used as the headlight housing, it can be appreciated that a more compact and simple design is possible.

Figure 6 is a flow chart of a method of manufacturing a replaceable LED module of a headlamp for a vehicle according to an embodiment of the present invention.

First, a platform is formed on a body frame inside a vehicle (S601). The platform is designed to have an electric wiring hole and a platform perforation, may form a vehicle body frame and then proceed with the platform forming process, or may be attached to a predetermined region of the vehicle body frame after the platform is manufactured separately.

After that, the step of mounting the platform lens on the platform (S602). The platform lens has a coupling hole into which the LED light source module is to be inserted, and may be formed of a transparent or translucent material to improve light distribution characteristics of the LED light source.

Thereafter, the step of coupling the LED light source module and the connector of the end of the electrical wiring through the coupling hole of the platform lens (S603).

That is, when the LED light source module is inserted into the coupling hole of the platform lens so as to span the electrical wiring hole of the platform, the LED light source module is easily coupled by the connector and the stator located at the bottom of the electrical wiring hole.

On the other hand, the method of replacing the LED light source module in the present invention, i) separating the LED light source module with the connector and ii) inserting a new LED light source module into the coupling hole of the platform lens may be combined with the connector. will be.

As described above, the present invention can easily replace only a damaged light source module by easily detaching or attaching an individual LED light source module, and a structure for reducing replacement time and replacement cost, and a vehicle headlight having improved dust / moistureproof / heat dissipation characteristics. It is an advantage to provide LED light source module.

Although the present invention has been described in connection with the specific embodiments of the present invention, it is to be understood that the present invention is not limited thereto. Those skilled in the art can change or modify the described embodiments without departing from the scope of the present invention, and within the equivalent scope of the technical spirit of the present invention and the claims to be described below. Various modifications and variations are possible.

110: LED light source module
111: LED lens
112: LED light source
113: PCB
114: conjugate
115: LPMF
116: stator
120: direction change module
130: platform lens
140: platform
141: platform drilling
160: electrical wiring
170: Connector
180: fixed type LED light source module

Claims (12)

A platform having at least one electric wiring hole formed therein and integrally formed in the vehicle body frame;
A platform lens seated on the platform and having at least one coupling hole formed therein to which the electrical wiring passing through the electrical wiring hole and the LED light source module are coupled;
A connector formed at an end of the electrical wiring; And
An interchangeable LED light source module inserted into a coupling hole of the platform lens and detachably coupled to the connector;
Vehicle headlamp comprising a fixed type LED light source module is disposed on a predetermined area where the electric wiring hole of the platform is not formed.
The method of claim 1, wherein the LED light source module,
An LED PCB Module Fixer (LPMF) coupled to the connector and seated on the platform over the electrical wiring hole;
A conjugate formed on the LPMF;
A printed circuit board (PCB) formed on the assembly;
At least one LED light source formed on the PCB; And
An LED lens sealing an upper portion of the LED light source;
Headlight for a vehicle comprising: a.
The method of claim 2,
Vehicle headlamp, characterized in that further comprising a stator on the coupling portion of the LPMF (LED PCB Module Fixer) and the connector.
The headlamp of claim 2, wherein the LPMF and the junction body have a through hole at a center thereof, and the PCB and the connector are connected by an electrical wiring formed along the through hole.
The method of claim 2, wherein the LED lens,
Vehicle headlight, characterized in that the LED light source, the PCB and the assembly is formed so as not to be exposed to the outside.
The method of claim 2, wherein the conjugate
Vehicle headlamps having a bonding strength of 1.0Nm to 20.0Nm.
The method of claim 2, wherein the PCB (Printed Circuit Board),
A vehicular headlamp having a thermal conductivity of 20 W / m · k to 200 W / m · k.
The method of claim 1, wherein the platform,
Vehicle headlights characterized in that for forming at least one or more platform perforations for inflow or outflow of air around the electrical wiring hole.
The method of claim 1, wherein the platform lens,
Vehicle headlamps, characterized in that formed of transparent resin.
delete The headlamp for a vehicle according to claim 1, further comprising a redirection module for changing a direction of a light source of the LED light source module in a predetermined region of the platform lens.
In the manufacturing method of the headlamp for vehicles according to any one of claims 1 to 9,
Forming the platform on a body frame;
Mounting the platform lens on the platform; And
Coupling the connector of the LED light source module and the end of the electrical wiring through the coupling hole of the platform lens;
Manufacturing method of a headlamp for a vehicle comprising a.

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