KR102617417B1 - Airbag cover assembly - Google Patents

Abstract

It relates to an airbag cover assembly, comprising an airbag cover coupled to a steering wheel and a lighting emblem module installed inside the airbag cover and illuminating an emblem by irradiating light to the outside of the airbag cover, wherein the lighting emblem module includes a plurality of A printed circuit board on which the LEDs are installed, a bracket for fixing the board to the lower surface of the upper plate of the airbag cover, and a bracket installed on the top of the board to shield the plurality of LEDs and the upper surface of the board, and a light emitted from each LED By providing a configuration that includes a cover that transmits light while preventing mixing or crossing, visibility is improved by installing a lighting emblem module with a plurality of LEDs at the bottom of the cover, and the airbag cover and lighting emblem can be firmly combined.

Description

Airbag cover assembly{AIRBAG COVER ASSEMBLY}

The present invention relates to an airbag cover assembly, and more particularly, to an airbag cover assembly coupled to a steering wheel of a vehicle and to which an illumination emblem is applied.

Driver's seat airbag devices applied to automobiles are widely used to protect passengers in the driver's seat from shock that occurs during a car collision.

Such a driver's seat airbag device is generally mounted on a steering wheel and includes an inflator, an airbag cushion, a housing that accommodates the airbag cushion in a folded state, and a cover that covers an opening of the housing.

When a car crashes, the airbag cushion expands as gas is injected from the inflator, and the cover made of soft resin ruptures due to the inflation force of the airbag cushion, forming an opening in the cover, which is inflated toward the vehicle's passengers through the opening.

This driver's seat airbag device may be equipped with a cover having a decorative plate, so-called emblem.

For example, patent document 1 and patent document 2 below disclose airbag cover technology.

Meanwhile, emblems are generally made with a company's design or mark, and have the function of giving value to the vehicle represented by the emblem rather than simply indicating the manufacturing company.

Emblems are installed throughout the exterior and interior of a vehicle to reveal the credit value accumulated in the emblem. The location where these emblems are installed varies depending on the company that manufactures the vehicle, but most are installed on the rear of the vehicle and the front of the steering wheel.

That is, it is installed on the airbag cover that covers the armature installed in the center of the steering wheel steered by the passenger driving the vehicle.

Generally, an emblem without an illumination function is applied to an airbag cover according to the prior art.

Accordingly, the airbag cover according to the prior art can be identified by natural light during the day, but at night, as the amount of light becomes insufficient, identification becomes difficult, so there is a problem in that it does not function properly due to difficulty in identification.

In order to solve this problem, technology for applying lighting to the emblem has been developed in Patent Documents 3 to 5 above, but the structure has become complicated due to the addition of new components such as LEDs, substrates, housings, and diffusion plates, and manufacturing There was a problem with costs rising unnecessarily.

Additionally, the airbag cover according to the prior art had a structure in which the emblem and the lighting module were combined on both sides around the airbag cover, making assembly work difficult and workability deteriorating.

Additionally, when installing a lighting module on an airbag cover according to the prior art, there was a problem in that the lighting module coupled to the airbag cover separated when the airbag cushion was inflated, causing injury to the occupants.

In addition, when the airbag cover according to the prior art installs a plurality of LEDs on the lower part of the airbag cover, the light emitted from each LED is scattered at various angles.

Due to this, the airbag cover according to the prior art loses its unique color because the light emitted from a plurality of LEDs in different colors mixes with each other, or the light and darkness are created depending on the irradiated position even if the light of the same color is emitted. There was this.

Republic of Korea Patent Registration No. 10-1718689 (announced on March 22, 2017) Republic of Korea Patent Registration No. 10-2005738 (announced on July 31, 2019) Republic of Korea Patent Registration No. 10-1076195 (announced on October 26, 2011) US Patent No. US 8,925,959 (January 6, 2015) US Patent No. US 8,061,861 (November 22, 2011)

The purpose of the present invention is to solve the problems described above and to provide an airbag cover assembly that can improve visibility by applying a lighting emblem that irradiates light to the airbag cover.

Another object of the present invention is to provide an airbag cover assembly that can firmly couple an airbag cover and a lighting emblem so that the lighting emblem module is not separated from the airbag cushion when the airbag cushion is inflated.

Another object of the present invention is to provide an airbag cover assembly that can prevent light emitted from a plurality of LEDs provided in a lighting emblem from scattering and mixing with each other or creating light and dark.

In order to achieve the above-mentioned object, the airbag cover assembly according to the present invention includes an airbag cover coupled to the steering wheel and an illumination emblem installed inside the airbag cover and illuminating the airbag cover with an emblem by irradiating light to the outside. It includes a module, wherein the lighting emblem module includes a printed circuit board on which a plurality of LEDs are installed, a bracket for fixing the board to the bottom of the upper plate of the airbag cover, and an upper surface of the board, where the plurality of LEDs and the upper surface of the board are installed. It is characterized in that it includes a cover that transmits the light emitted from each LED while preventing mixing or crossing of the light.

As described above, according to the airbag cover assembly according to the present invention, the effect of improving visibility is obtained by installing a lighting emblem module with a plurality of LEDs on the lower part of the airbag cover.

And according to the present invention, the effect of blocking the light emitted from a plurality of LEDs from scattering and crossing each other using a cover is obtained.

Accordingly, according to the present invention, the effect of being able to emit light of a unique color emitted from each LED is obtained by preventing light emitted in different colors from a plurality of LEDs from scattering and mixing with each other.

In addition, according to the present invention, the effect of preventing light and darkness from occurring in the emblem area by scattering and mixing light emitted from a plurality of LEDs with the same color is obtained.

According to the present invention, the light that penetrates the airbag cover and diffuses upward using the diffusion part of the cover is spread in various directions and angles to prevent it from being transmitted directly into the driver's field of view, thereby preventing safety accidents caused by the driver's glare. The effect of being able to prevent is obtained.

In addition, according to the present invention, the airbag cover and the lighting emblem module are firmly combined to prevent the lighting emblem module from being separated from the airbag cushion when the airbag cushion is inflated, thereby preventing injury to the driver due to the lighting emblem. obtained.

In addition, according to the present invention, a space is provided between the substrate of the lighting emblem module, the bracket, and the cover, and external air is introduced through the hole in the bracket and cover to quickly discharge the heat generated from the substrate to the outside, thereby improving heat dissipation performance. The effect of being able to improve is obtained.

As a result, according to the present invention, by minimizing the size, weight, and number of parts of the lighting emblem module, the space in which the airbag cushion can be accommodated inside the airbag cover is increased, thereby reducing costs when developing a new vehicle model, and reducing the cost of the airbag cover. The effect of improving the appearance quality and deployment performance of the airbag cushion is achieved.

1 is a perspective view of an airbag cover assembly according to a preferred embodiment of the present invention;
Figure 2 is an exploded perspective view of the airbag cover assembly shown in Figure 1;
Figure 3 is an exploded perspective view of the lighting emblem module shown in Figure 2;
Figure 4 is a cross-sectional view taken along line AA' shown in Figure 1;
Figure 5 is a cross-sectional view taken along line BB' shown in Figure 2;
Figure 6 is an enlarged perspective view of the cover shown in Figure 3 from another angle;
7 to 9 are diagrams illustrating the assembly process of an airbag cover and an assembly module, respectively.

Hereinafter, an airbag cover assembly according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

Figure 1 is a perspective view of an airbag cover assembly according to a preferred embodiment of the present invention, Figure 2 is an exploded perspective view of the airbag cover assembly shown in Figure 1, and Figure 3 is an exploded perspective view of the lighting emblem module shown in Figure 2. And FIG. 4 is a cross-sectional view taken along line A-A' shown in FIG. 1, and FIG. 5 is a cross-sectional view taken along line B-B' shown in FIG. 2.

Hereinafter, the direction in which the connector 34 is installed in the airbag cover 11 is referred to as 'rear', and the opposite direction is referred to as 'front'. And terms indicating directions such as 'left', 'right', 'upward' and 'downward' refer to each direction based on the 'front' and 'rear' as shown in each drawing. define.

As shown in FIGS. 1 to 3, the airbag cover assembly 10 is installed inside the airbag cover 11 and the airbag cover 11 coupled to the steering wheel, and irradiates light to the outside of the airbag cover 11. It includes a lighting emblem module (hereinafter abbreviated as 'lighting module') 12 that illuminates with an emblem.

The airbag cover 11 may be formed in a substantially cylindrical shape with an open lower surface.

Therefore, the airbag cover 11 includes a side wall 21 extending toward the steering wheel and an upper plate 22 that shields the top of the side wall 21 and covers the airbag module (not shown) accommodated therein. .

The side wall portion 20 may be formed in a cylindrical shape with a cross-section of various shapes, such as a circular shape, an oval shape, or a square shape, to correspond to the coupling space formed on the upper surface of the steering wheel. An airbag housing (hereinafter abbreviated as 'housing') 13, which accommodates the airbag module therein, may be coupled to the lower part of the side wall portion 20.

A leather cover is installed on the upper surface of the upper plate 22, and a tear line that breaks as the airbag cushion expands may be formed.

The housing 13 may be formed in a substantially cylindrical shape with an open upper surface.

That is, the side wall 131 of the housing 13 is formed in a size and shape corresponding to the internal space of the side wall 21 so that it can be coupled to the side wall 21 of the airbag cover 11, and the side wall 131 A plurality of coupling protrusions 132 coupled to a plurality of coupling holes 23 provided in the side wall portion 21 may be provided.

For example, each coupling hole 23 is formed in an approximately 'U' shape in cross section, and each coupling protrusion 132 is a hook that corresponds to the shape of each coupling hole 23 and protrudes outward from the top to the bottom. It can be formed into a shape.

Additionally, a mounting hole for mounting the inflator is formed in the central portion of the lower surface of the housing 13, and one or more coupling hooks 133 may be formed on the lower surface of the housing 13 to enable coupling to the armature of the steering wheel.

The lighting module 12 is a printed circuit board (hereinafter abbreviated as 'board') 32 on which a plurality of LEDs 31 are installed, and the board 32 is fixed to the lower surface of the upper plate 22 of the airbag cover 11. A cover is installed on the top of the bracket 40 and the substrate 32 to shield the upper surface of the plurality of LEDs 31 and the substrate 32, and transmits the light emitted from each LED upward while preventing mixing or crossing. Includes (50).

The substrate 32 is formed in a substantially rectangular plate shape, and on the upper surface of the substrate 32, a plurality of LEDs 31, for example, four, are installed at regular intervals along the longitudinal direction of the substrate 32 and the left and right directions as seen in FIG. 2. Can be installed.

Of course, the present invention is not necessarily limited to this, and may be modified to install two, three, five or more LEDs 31.

The board 32 receives control signals and power from the control unit (not shown) and the battery (not shown) provided in the vehicle through the cable 33 and connector 34 connected to one side and transmits them to each LED 31. You can.

Therefore, the plurality of LEDs 31 may turn on or blink to emit light of the same color or different colors.

This board 32 may be fixed to the bottom of the upper plate 22 of the airbag cover 11 while being inserted into the bracket 40.

The bracket 40 is formed in a substantially hexahedral shape with an open upper surface, and a flange 41 may be formed at the top of each side wall of the bracket 40 toward the outside.

A coupling hole 42 may be formed in each flange 41 to which a plurality of bosses 24 formed on the bottom of the upper plate 22 of the airbag cover 11 are coupled.

In addition, an inner side wall 43 is formed along the edge of the inner space of the bracket 40, and a fixing hook 44 is provided on the inner side wall 43 to secure the cover 50 inserted therein, and the cover 50 ) A fixing hole 54 to which the fixing hook 44 is coupled may be formed on the side wall.

For example, as shown in FIGS. 3 and 5, a pair of fixing hooks 44 may be formed at the front and rear ends of the inner side wall 43, respectively, to protrude upward.

In addition, a support rib 45 on which the substrate 32 is seated may be provided on the inner side wall 43 of the bracket 40.

For example, the support rib 45 may be formed to protrude inward from the left wall, right wall, and front side wall among the inner side walls 43 of the bracket 40 at a height slightly lower than the height of the inner side wall 43. .

Therefore, as shown in FIGS. 4 and 5, the substrate 32 can be installed on the top of each support rib 45 and spaced apart from the upper surface of the bracket 40 by a certain distance.

In addition, a plurality of through holes 46 may be formed in the lower plate of the bracket 40 to allow external air to flow into the upper space of the bracket 40 and to discharge heat generated in the substrate 32 to the outside.

For example, a plurality of through holes 46 may be formed along a plurality of columns and rows.

In this way, in the present invention, the substrate is installed spaced apart from the upper surface of the bracket, so that when the LED is driven, external air is transmitted to the bottom of the substrate through the hole formed in the bracket, and heat generated from the LED and substrate is quickly discharged to the outside of the lighting emblem module. By cooling it, heat dissipation performance can be improved.

In addition, a plurality of reinforcing ribs 47 are formed between the side wall of the bracket 40 and the inner side wall 43 to reinforce the rigidity of the side wall and the inner side wall 43, and each reinforcing rib 47 is formed on the side wall of the cover 50. ) A plurality of slits 55 may be formed at positions corresponding to ).

In addition, a wire guide 48 that guides the cable 33 connected to the board 32 may be provided on one side, for example, the back, of the side wall 43 of the bracket 40.

The wire guide 48 is bent downward in a cross-sectional shape of approximately 'L' when viewed from one side, and a hook 134 is formed to protrude from the rear of the side wall 131 of the housing 13 at the lower part of the wire guide 48. A hanging hole 49 may be formed.

Additionally, an outlet hole 27 through which the cable 33 is led out of the airbag cover 11 may be formed in the rear side wall 21 of the airbag cover 11 (see FIG. 7).

The wire guide 48 may have a cross-section of approximately a 'U' shape when viewed from the top. That is, as both ends of the wire guide 48 protrude rearward compared to the central portion, the cable 33 can be placed in a space formed at the rear of the wire guide 48.

Here, the connector 34 provided at the rear end of the cable 33 may be fixed to the lower surface of the housing 13 using a hook method.

As such, the present invention provides a wire guide on the bracket to guide the installation path of the cable, and firmly fixes the connector to the housing to prevent movement of the cable and connector extending from the board, and to prevent vibration or shock applied from the outside. Damage or damage caused by this can be prevented.

The cover 50 shields each area on the substrate 32 where the plurality of LEDs 31 are installed, and transmits the light emitted from each LED 31 through the plurality of areas formed on the upper plate 22 of the airbag cover 11. It functions to transmit upward through the hole 24.

To this end, the cover 50 can be made transparent using a synthetic resin material such as polycarbonate or acrylic.

Meanwhile, if the light emitted from the LED 31 is directed directly at the driver's eyes, it may cause glare and cause a vehicle accident.

In order to solve this problem, in this embodiment, the upper surface of the cover 50 is roughly hemispherical or dome-shaped to cover the upper part of each LED 31 and spread the light emitted from the LED 31 in various directions and angles. In this way, a plurality of diffusion parts 51, that is, four diffusion parts 51 can be provided.

Here, mounting protrusions 52 protruding upward along the left and right directions are provided on the upper surface of the cover 50, and each diffusion portion 51 may be disposed on the mounting protrusions 52 along the left and right directions.

This mounting protrusion 52 may be installed in a space formed in a shape corresponding to the mounting protrusion 52 on the bottom of the upper plate 22 of the airbag cover 11.

Meanwhile, on the upper surface of the remaining area of the mounting protrusion 52 except for the four diffusion parts 51, the light emitted from each LED 31 is transmitted only in a straight direction, that is, upward, and is scattered to the surroundings and does not cross each other. To prevent this, a black masking area may be provided.

This masking work on the upper surface of the mounting protrusion 52 can be implemented by forming a paint layer using a painting method or spray method using black pigment.

Of course, the present invention is not necessarily limited to this, and may be implemented in various ways, such as attaching an opaque sticker such as black, or combining or attaching members such as a very thin metal plate.

In addition, a plurality of through holes 53 may be formed on the upper surface of the cover 50 to allow air outside the cover 50 to flow into the space below the cover and to discharge heat generated in the substrate 32 to the outside.

For example, a plurality of through holes 53 may be formed along a plurality of columns and rows on the entire upper surface of the cover including the mounting protrusion 52.

Meanwhile, Figure 6 is an enlarged perspective view of the cover shown in Figure 3 from another angle.

As shown in Figures 5 and 6, the lower surface of the cover 50 is provided with a plurality of blocking ribs along the edge of the lower surface of each diffusion unit 51 to block the light emitted from each LED 31 from scattering to the surroundings. (56) may be formed to protrude.

Each blocking rib 56 may be formed in a cylindrical shape with a cross-section that is approximately circular or polygonal when viewed from the bottom. Therefore, as the light emitted from each LED 31 is irradiated only upward through the space inside each blocking rib 56, it can be prevented from scattering to the surroundings and crossing each other.

In addition, at least one pressure rib 57 extending along the front-back direction may be formed between each blocking rib 56. The pressure rib 57 is seated on the upper surface of the substrate 32 and can function to press and secure the substrate 32 placed therein downward when the cover 50 and the bracket 40 are combined.

In addition, a plurality of seating ribs 58 that are seated on the upper surface of the substrate 32 may be provided at the edge of the cover 50 and spaced apart from each other.

Therefore, the upper surface of the cover 50 and the upper surface of the substrate 32 can be coupled to the bracket 40 while being spaced apart by the height of the partition wall 57 and the seating rib 58.

In this way, the present invention provides a pressure rib and a seating rib on the lower surface of the cover to firmly fix the substrate, thereby preventing movement of the substrate and noise generation due to this.

In addition, the present invention installs the cover at a distance from the upper surface of the substrate, so that when the LED is driven, external air is transmitted to the upper part of the substrate through the hole formed in the cover, and heat generated from the LED and the substrate is quickly discharged to the outside of the lighting emblem module. By cooling it, heat dissipation performance can be improved.

Next, the assembly method and operation method of the airbag cover assembly according to a preferred embodiment of the present invention will be described in detail.

First, the operator places the board 32 on top of the bracket 40 and moves the board 32 downward to couple the bracket 40 and the board 32.

At this time, the substrate 32 is supported by being seated on the support ribs 45 formed on the bracket 40.

Then, the worker places the cover 50 on top of the bracket 40 and moves the cover 50 downward to couple the cover 50 and the bracket 40.

Then, as each fixing hook 44 formed on the inner side wall 43 of the bracket 40 is coupled to each fixing hole 54 formed on the partition wall of the cover 50, the bracket 40 and the cover 50 It is firmly assembled.

At this time, the upper surface of the cover 50 and the upper surface of the substrate 32 are assembled at a distance equal to the height of the seating rib 58 formed on the cover 50.

Once the assembly of (12) is completed through this process, the worker couples (12) to the lower surface of the upper plate (22) of the airbag cover (11).

For example, Figures 7 to 9 are diagrams illustrating the assembly process of an airbag cover and an assembly module, respectively.

As shown in FIG. 7 , a plurality of bosses 24 are formed on the lower surface of the upper plate 22, which are coupled to each flange 41 of the bracket 40 assembled with the lighting module 12.

Each boss 24 is coupled through a plurality of coupling holes 42 formed in each flange 41. Next, the lower part of each boss 24 is fused to the lower surface of the flange 41 in a flat and expanded state, as shown in FIG. 8, through a primary fusion operation that applies heat and pressure.

Here, on the outside of each boss 24, that is, on the front and back sides and on the left and right sides based on the center of the upper plate 22, a secondary fusion operation is performed to increase the bonding force between the airbag cover 11 and the assembly module 12, respectively. A fusion piece 26 is formed.

Each fusion piece 26 may be formed in a substantially plate shape extending vertically along the front-back or left-right direction from the lower surface of the airbag cover 11.

Therefore, each fusion piece 26 is fused to each boss 24 and the lower surface of the flange 41 by a secondary fusion operation of applying heat and pressure so that it overlaps each boss 24 expanded by the primary fusion operation.

In this way, the present invention provides a plurality of bosses and a fusion surface on an airbag cover with elasticity and ductility to robustly fusion the lighting emblem module through a double fusion process, so that when the airbag cushion is inflated, the assembled emblem module is separated from the airbag cover. Separation can be prevented.

Once the assembly of the airbag cover 11 and the lighting module 12 is completed, the worker attaches the housing 13 to the lower part of the airbag cover 11.

At this time, the cable 33 connected to the board 32 is guided downward in its installation path by the wire guide 48 formed on the rear of the bracket 40, and the connector 34 is attached to the lower surface of the housing 13 in a hook manner. can be firmly fixed to.

Accordingly, the present invention can maintain the rigidity of the airbag cover, cable, and connector when the airbag cushion is inflated and deployed, and prevent breakage or damage in advance.

When the assembly of the lighting module 12 on the airbag cover 11 is completed through this process, each LED 31 installed on the board 32 turns on or off depending on the power and control signal supplied through the cable 33. Blinking operation.

At this time, the plurality of LEDs 31 may turn on or blink simultaneously or individually with the same color or different colors.

When such a plurality of LEDs 31 are driven, the cover 50 prevents the light emitted from each LED 31 from intersecting while being scattered to the surroundings.

That is, the plurality of LEDs 31 are each disposed inside the plurality of blocking ribs 56 formed on the cover 50, and each blocking rib 56 prevents the light emitted from each LED 31 from being scattered to the surroundings. Block it. Accordingly, the light emitted from each LED 31 moves only upward.

Therefore, the light moving upward of the blocking rib 56 is diffused upward and around through the plurality of diffusion parts 51 formed in the cover 50 and the penetration hole 25 of the airbag cover 11 to illuminate the emblem. .

Through the process described above, the present invention firmly combines the airbag cover and the lighting emblem module to prevent the lighting emblem module from being separated from the airbag cushion when the airbag cushion is inflated, thereby preventing injury to the driver due to the lighting emblem module. It can be prevented.

In addition, the present invention can improve visibility by installing a lighting emblem module with a plurality of LEDs on the lower part of the airbag cover.

In addition, according to the present invention, the cover is used to block the light emitted from a plurality of LEDs from scattering and crossing each other, thereby preventing the lights emitted in different colors from scattering and mixing together, thereby allowing the unique light emitted from each LED to be emitted from each LED. Colors of light can be irradiated.

In addition, the present invention can prevent light emitted from a plurality of LEDs of the same color from scattering and mixing together, resulting in brightness and darkness in the emblem area.

In addition, the present invention uses the diffusion part of the cover to spread the light that penetrates the airbag cover upward and spreads it in various directions and angles to prevent it from being transmitted directly into the driver's field of view, thereby preventing safety accidents caused by the driver's glare. It can be prevented.

As a result, the present invention can minimize the size, weight, and number of parts of the lighting emblem module.

As a result of comparing the product to which the conventional lighting emblem module was applied and the product according to the present invention, it was confirmed that the present invention reduces the weight by about 10% to 20% and the volume by about 2% to 5% compared to the conventional product.

Accordingly, the present invention increases the space where the airbag cushion can be accommodated inside the airbag cover, thereby reducing costs when developing a new vehicle model, and improving the appearance quality of the airbag cover and the deployment performance of the airbag cushion.

Although the invention made by the present inventor has been described in detail according to the above-mentioned embodiments, the present invention is not limited to the above-described embodiments and, of course, can be changed in various ways without departing from the gist of the invention.

The present invention is applied to airbag cover assembly technology that improves visibility by applying a lighting emblem that irradiates light to the airbag cover.

10: Airbag cover assembly
11: Airbag cover 12: Lighting emblem module
13: airbag housing 131: side wall
132: coupling protrusion 133: coupling hook
134: hook
21: side wall 22: upper plate
23: Combiner 24: Boss
25: penetration hole 26: fusion piece
31: LED 32: substrate
33: cable 34: connector
40: bracket 41: flange
42: coupling hole 43: inner side wall
44: fixed hook 45: support rib
46: through hole 47: reinforcing rib
48: wire guide 49: hanger
50: cover 51: diffusion part
52: mounting protrusion 53: through hole
54: fixing hole 55: slit
56: blocking rib 57: pressurizing rib
58: Seating rib

Claims (9)

Airbag cover attached to the steering wheel and
It includes a lighting emblem module that is installed inside the airbag cover and irradiates light to the outside of the airbag cover to illuminate the emblem,
The lighting emblem module includes a printed circuit board on which a plurality of LEDs are installed,
A bracket for fixing the board to the lower surface of the upper plate of the airbag cover, and
A cover installed on top of the substrate to shield the plurality of LEDs and the upper surface of the substrate, and transmitting the light emitted from each LED while preventing mixing or crossing,
A wire guide is connected to one side of the bracket to guide the installation path of the cable connected to the board,
The airbag cover assembly, wherein the wire guide is bent downward on one side of the bracket. According to paragraph 1,
The airbag cover includes a side wall portion coupled to the steering wheel, and
It includes an upper plate that shields the top of the side wall portion,
A plurality of bosses are formed on the lower surface of the upper plate and are coupled to the coupling hole of the bracket,
The boss is coupled to a coupling hole formed in a flange connected to each side wall of the bracket,
An airbag cover assembly, wherein the boss and the flange are expanded and first fused by heat and pressure applied to the end of the boss. According to paragraph 2,
On the lower surface of the upper plate, fusion pieces are formed on the outside of each boss,
An airbag cover assembly, characterized in that the fusion piece is secondary fused by heat and pressure so that it overlaps the first fused boss and fusion piece. According to any one of claims 1 to 3,
On the upper surface of the cover, a plurality of diffusion parts surround the upper part of the plurality of LEDs and diffuse the light emitted from each LED, and
An airbag cover assembly characterized by a black masking area that transmits the light emitted from each LED upward and prevents the light from intersecting while being scattered to the surroundings. According to paragraph 4,
A plurality of blocking ribs are provided on the lower surface of the cover to block light emitted from each LED from being scattered to the surroundings,
An airbag cover assembly, characterized in that pressure ribs are provided between the plurality of blocking ribs, each extending along the front-back direction and pressing and fixing the upper surface of the substrate. According to paragraph 4,
In the inner space of the bracket, an inner side wall is formed along the edge,
The inner side wall is provided with a fixing hook for fixing the cover inserted therein,
An airbag cover assembly, characterized in that a fixing hole to which the fixing hook is coupled is formed in the cover. According to clause 6,
A support rib on which the substrate is seated is provided on the inner side wall of the bracket,
A plurality of through holes are formed in the bracket to allow external air to flow into the inner space of the bracket and to radiate heat generated from the substrate to the outside,
The cover is provided with a seating rib that is seated on the upper surface of the substrate,
An airbag cover assembly, characterized in that a plurality of through holes are formed to allow air outside the cover to flow into the inner space of the cover and to discharge heat generated in the substrate to the outside. delete According to paragraph 4,
An airbag housing accommodating an airbag module is coupled to the lower part of the airbag cover,
A hanging hole is formed in the wire guide where a hook formed on a side wall of the airbag housing is caught,
An airbag cover assembly, characterized in that the connector provided at the end of the cable is fixed to the lower surface of the airbag housing.

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