Lighting emblem module and airbag cover assembly using same

Abstract

The present invention relates to a lighting emblem module and an airbag cover assembly using same, and comprises: a printed circuit board (hereinafter, referred to as "PCB") having a pair of LEDs installed on both ends thereof; a PCB housing having the PCB mounted on the upper surface thereof; a light guide installed between the pair of LEDs and providing an optical path so that light emitted from each of the LEDs is emitted upwards from the PCB; and a diffuser that is installed on the upper portion of the PCB and diffuses light, transmitted from the light guide, upward while shielding each of the LEDs and the upper surface of the PCB. Therefore, the present invention can simultaneously provide a lighting function and a display function of displaying the travel state of a vehicle and the operation state of devices provided in the vehicle.

Description

Lighting emblem module and airbag cover assembly to which it is applied

[0001] The present invention relates to an airbag cover assembly, and more particularly, to a lighting emblem module coupled to a steering wheel and having a lighting function, and an airbag cover assembly to which the same is applied.

[0002] Driver's seat airbag devices applied to automobiles are widely used to protect passengers in the driver's seat from the impact that occurs in a car collision.

[0003] These driver airbag devices are typically mounted on the steering wheel and include an inflator, an airbag cushion, a housing that accommodates the airbag cushion in a folded state, and a cover that covers an opening in the housing.

[0004] In the event of a car collision, the airbag cushion expands as gas is injected from the inflator, and the cover made of soft resin is ruptured by the expansion force of the airbag cushion, forming an opening in the cover, and the airbag cushion expands toward the passengers of the vehicle through the opening.

[0005] These driver's airbag devices may be equipped with a cover having a decorative plate, so-called emblem.

[0006] For example, patent documents 1 and 2 below disclose airbag cover technology.

[0007] Meanwhile, an emblem is usually made with a company's design or mark, and it does not simply indicate the company that manufactured the vehicle, but rather functions to give the value of the vehicle that the emblem represents.

[0008] Emblems are installed in various places on 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 in front of the steering wheel.

[0009] That is, it is installed on the airbag cover that covers the armature installed in the center of the steering wheel that the passenger driving the vehicle steers.

[0010] Typically, airbag covers according to prior art are equipped with emblems without lighting functions.

[0011] Therefore, the airbag cover according to the prior art can be identified by natural light during the day, but at night, due to insufficient light, it is difficult to identify, and thus, there is a problem in that it cannot function properly.

[0012] To solve these problems, a technology was developed to apply lighting to the emblem, but the addition of new components such as LEDs, substrates, housings, and diffusers complicated the structure and unnecessarily increased manufacturing costs.

[0013] That is, in order to provide lighting functions with various colors or shapes using a lighting emblem, multiple light sources must be installed, and a structural design is required to irradiate the light irradiated from each light source in a desired color or shape.

[0014] In addition, recently, emblems have been used to display the driving status of the vehicle, the operating status of the devices installed in the vehicle, and any abnormalities in addition to the lighting function.

[0015] Therefore, there is a need for the development of a technology that can provide lighting and display functions of various colors with a simple structure using a minimum of light sources.

[0016] (Patent Document 1) Republic of Korea Patent Registration No. 10-1718689 (announced on March 22, 2017)

[0017] (Patent Document 2) Republic of Korea Patent Registration No. 10-2005738 (announced on July 31, 2019)

[0018] The purpose of the present invention is to solve the above-mentioned problems, and to provide a lighting emblem module that can improve visibility by applying the lighting emblem module to an airbag cover, and an airbag cover assembly to which the lighting emblem module is applied.

[0019] Another object of the present invention is to provide a lighting emblem module having a simple structure using a minimum of light sources and capable of simultaneously providing lighting and display functions in various ways, and an airbag cover assembly to which the lighting emblem module is applied.

[0020] Another object of the present invention is to provide a lighting emblem module capable of indicating an operation mode corresponding to the driving state of a vehicle and the operation state of each device provided in the vehicle, and an airbag cover assembly to which the lighting emblem module is applied.

[0021] In order to achieve the above-described purpose, the lighting emblem module according to the present invention is characterized in that it includes a printed circuit board (hereinafter referred to as 'PCB') on which a pair of LEDs are installed at each end, a PCB housing on which the PCB is mounted on an upper surface, a light guide installed between the pair of LEDs and providing a light path so that light emitted from each LED is irradiated upwards of the PCB, and a diffuser installed on an upper portion of the PCB to diffuse light transmitted from the light guide upwards while shielding each LED and the upper surface of the PCB, thereby simultaneously providing a lighting function and a display function for indicating a driving state of a vehicle and an operating state of devices provided in the vehicle.

[0022] In addition, in order to achieve the above-described purpose, the airbag cover assembly to which the lighting emblem module according to the present invention is applied is characterized in that it includes a lighting emblem module to simultaneously provide a lighting function and a display function for indicating the driving status of the vehicle and the operating status of devices provided in the vehicle.

[0023] As described above, according to the lighting emblem module of the present invention and the airbag cover assembly to which it is applied, the present invention obtains the effect of being able to provide a lighting function and a display function simultaneously by using the lighting emblem module.

[0024] And according to the present invention, it is possible to achieve the effect of implementing various dynamic effects such as moving, expanding, or contracting by irradiating light of different colors and concentrations using only a pair of LEDs.

[0025] Accordingly, according to the present invention, by implementing dynamic effects corresponding to various operation modes that indicate the driving status of a vehicle or the operating status of each device, the effect of being able to guide the driver and passengers to intuitively check the current driving status or operating status is obtained.

[0026] In addition, according to the present invention, the efficiency of the limited space of the airbag cover assembly can be improved, thereby minimizing the size and weight of the product and reducing the number of parts, thereby reducing manufacturing costs.

[0027] Figure 1 is a perspective view of an airbag cover assembly to which a lighting emblem module according to a preferred embodiment of the present invention is applied;

[0028] Figure 2 is an exploded perspective view of the airbag cover assembly illustrated in Figure 1;

[0029] Figure 3 is a cross-sectional view along line AA' shown in Figure 1;

[0030] Figure 4 is an exploded perspective view of the lighting emblem module illustrated in Figure 2;

[0031] Fig. 5 is a perspective view of the airbag cover assembly illustrated in Fig. 1 from a different angle;

[0032] Figures 6a to 6c are drawings illustrating the operating principle of the lighting emblem module, respectively.

[0033] FIGS. 7A to 7D and FIGS. 8A to 8D are drawings illustrating a method for controlling the concentration and color of light using the operating principles illustrated in FIGS. 6A to 6C, respectively.

[0034] Hereinafter, a lighting emblem module and an airbag cover assembly to which the lighting emblem module is applied according to a preferred embodiment of the present invention will be described in detail with reference to the attached drawings.

[0035]

[0036] FIG. 1 is a perspective view of an airbag cover assembly to which a lighting emblem module according to a preferred embodiment of the present invention is applied, FIG. 2 is an exploded perspective view of the airbag cover assembly illustrated in FIG. 1, FIG. 3 is a cross-sectional view taken along line AA' illustrated in FIG. 1, FIG. 4 is an exploded perspective view of the lighting emblem module illustrated in FIG. 2, and FIG. 5 is a perspective view of the airbag cover assembly illustrated in FIG. 1 from a different angle.

[0037] Hereinafter, the direction in which the connector (50) is installed in the airbag cover (11) is referred to as 'front (B)', and the opposite direction is referred to as 'rear (F)'. In addition, terms indicating directions such as 'left (L)', 'right (R)', 'upper (U)', and 'lower (D)' are defined as indicating each direction based on the 'front (F)' and 'rear (B)' described above in the state illustrated in each drawing.

[0038] An airbag cover assembly (10) to which a lighting emblem module according to a preferred embodiment of the present invention is applied includes, as shown in FIGS. 1 and 2, an airbag cover (11) coupled to a steering wheel, a lighting emblem module (12) installed in the airbag cover (11) and providing a lighting emblem function by irradiating light to the outside of the airbag cover (11), and an airbag housing (not shown in the drawing) coupled to the airbag cover (11) with an airbag module (not shown in the drawing) accommodated therein.

[0039] And the airbag cover assembly (10) according to a preferred embodiment of the present invention further includes a connector (50) that transmits power and control signals to the lighting emblem module (12), and the connector (50) can be coupled to the airbag cover (11) or the airbag housing using a coupling member.

[0040] The airbag cover (11) can be formed in a roughly cylindrical shape with an open lower surface.

[0041] Therefore, the airbag cover (11) includes a side wall portion (21) extending toward the steering wheel and an upper plate (22) that shields the upper portion of the side wall portion (21) and covers the airbag module (not shown in the drawing) accommodated inside.

[0042] The side wall portion (21) may be formed in a tubular shape with a cross-section of various shapes, such as a circular shape, an oval shape, or a square shape, to correspond to the joining space formed on the upper surface of the steering wheel. An airbag housing (13) that accommodates the airbag module inside may be joined to the lower portion of the side wall portion (21).

[0043] A leather cover is installed on the upper surface of the upper plate (22), and a tear line (not shown in the drawing) that breaks as the airbag cushion expands can be formed.

[0044] The front and rear ends of the upper plate (22) may be formed to extend downward so as to shield all or part of the front and rear sides of the side wall (21), respectively.

[0045] The above airbag housing is formed in a roughly cylindrical shape with an open upper surface, and can be combined with the lower part of the opened airbag cover (11).

[0046] For example, the side wall of the airbag housing is formed with a size and shape corresponding to the internal space of the side wall portion (21) so as to be able to be joined to the side wall portion (21) of the airbag cover (11), and the side wall may be provided with a plurality of joining protrusions that are joined to a plurality of joining holes provided in the side wall portion (21).

[0047] Here, each joint hole is formed in a cross-section roughly in the shape of a 'U', and each joint projection can be formed in a hook shape corresponding to the shape of each joint hole and protruding outward from the top to the bottom.

[0048] And, a mounting hole for mounting an inflator (not shown in the drawing) is formed in the central portion of the lower surface of the airbag housing, and one or more coupling hooks can be formed or coupled to the lower surface of the airbag housing so as to be coupled to an armature of a steering wheel.

[0049] The connector (50) is coupled with a counterpart connector (not shown in the drawing) that is electrically connected to a control unit and a battery (not shown in the drawing) provided in the vehicle, and has the function of transmitting control signals and power to the PCB (32).

[0050] Here, the above control signal can be transmitted to the lighting emblem module through the LIN or CAN communication method provided in the automobile.

[0051] These connectors (50) can be angle-adjustably coupled to the side wall portion (21) of the airbag cover (11) or the side wall or lower surface of the airbag housing through the above-described coupling member.

[0052] Next, the configuration of the lighting emblem module is described in detail with reference to FIGS. 2 to 5.

[0053] The lighting emblem module (12) may include, as illustrated in FIGS. 2 to 5, a printed circuit board (hereinafter referred to as “PCB”) (32) on which a pair of LEDs (31) are installed at both ends of the upper surface, a PCB housing (33) on which the PCB (32) is mounted on the upper surface, a light guide (34) installed between the pair of LEDs and providing a light path so that light emitted from each LED is irradiated upwards of the PCB, and a diffuser (35) installed on the upper portion of the PCB (32) and transmitting light transmitted from the light guide (34) toward the upper portion of the airbag cover (11) while shielding the upper surfaces of each LED (31) and the PCB (32).

[0054] Therefore, the lighting emblem module (12) simultaneously provides a lighting (ambient) function that illuminates the upper surface of the airbag cover (11) and an indicator function that displays the driving status of the vehicle or the operating status of each device.

[0055] The PCB (32) is formed in a roughly square plate shape, and a pair of LEDs (31) can be installed on each side of the upper surface of the PCB (32) in the longitudinal direction of the PCB (32), that is, in the left and right directions when viewed in FIG. 4.

[0056] Of course, the present invention is not necessarily limited to this, and may be modified to install two, three, five or more LEDs (31), but in this embodiment, only one pair of LEDs (31) is applied in order to make the structure of the lighting emblem module (12) as simple as possible and thereby increase the efficiency of the limited space inside the airbag cover assembly (10).

[0057] PCB (32) can receive the control signal and power from the control unit and battery provided in the vehicle through a cable (321) and connector (50) connected to one side and transmit them to each LED (31).

[0058] Here, a controller (not shown in the drawing) that is powered and operates on the PCB and generates a driving signal to drive each LED according to the control signal is provided, and a terminal section may be provided on one side of the PCB (32) to which an internal connector (322) connected to the inner end of a cable (321) is coupled.

[0059] Thus, a pair of LEDs (31) are supplied with power through the connector (50), cable (321), internal connector (322) and the terminal section, and can light up or blink to emit light of the same color or different colors according to a driving signal of the controller based on a control signal of the control section.

[0060] This PCB (32) can be fixed to the lower part of the upper plate (22) of the airbag cover (11) by the PCB housing (33) while installed in the PCB housing (33).

[0061] The PCB housing (33) is formed in a plate shape or a roughly hexahedral shape with an open upper surface, and an installation space in which a PCB, an internal connector (322), a terminal portion, and a cable (321) are installed can be formed inside the PCB housing (33).

[0062] The light guide (34) can be formed in a roughly bar shape that extends long in the left and right directions.

[0063] Therefore, the light guide (34) can form a light path so that light irradiated from a pair of LEDs (31) installed on both ends of the upper surface of the PCB (32) is uniformly irradiated toward the upper side of the PCB (32).

[0064] Here, a pair of LEDs (31) can be provided as side-view multi-color LEDs that can light up and blink in various colors so as to respectively incident light on both ends of the light guide (34).

[0065] In this light guide (34), a plurality of optical patterns (341) can be formed to mix the light incident on both ends and irradiate it with various colors or irradiate it with different concentrations (gradation) (see FIG. 6a).

[0066] Each optical pattern (341) can be formed in a groove shape with inclined surfaces on both sides so as to uniformly reflect incident light.

[0067] Each optical pattern (341) can have the angle of the inclined surface, the width and depth of each optical pattern adjusted in various ways to correspond to the direction and angle at which light is to be irradiated.

[0068] Therefore, the lighting emblem module (12) can individually adjust the on / off timing of a pair of LEDs (31) and the duty ratio of each driving signal in the form of a PWM signal to drive a pair of LEDs (31) according to the operation mode to be displayed, thereby controlling the color and concentration of light irradiated upward from the airbag cover (11).

[0069] The diffuser (35) is formed in a roughly plate shape to correspond to the upper surface of the PCB housing (33), and a space in which a light guide (34) is installed can be formed in the center of the lower surface of the diffuser (35). In addition, a diffusion projection (351) protruding upward can be formed to extend in the left and right directions in the center of the upper surface of the diffuser (35).

[0070] The diffusion projection (351) has the function of irradiating light transmitted from the light guide (34) by diffusing it upward, and can be coupled to an installation hole (23) formed in the airbag cover (12). The installation hole (23) can be formed to extend long and left and right in the approximate center of the airbag cover (11) so as to correspond to the shape of the diffusion projection (351).

[0071] Here, a plurality of coupling portions (331) may be formed penetrating along two rows at preset intervals on the front and rear sides of the PCB housing (33), and a plurality of coupling holes (352) may be formed at positions corresponding to the plurality of coupling portions (331) on the front and rear sides of the diffuser (35). In addition, a plurality of coupling protrusions (24) may be formed protruding downward on the lower surface of the upper plate (22) of the airbag cover (11) so as to be coupled by penetrating through each coupling portion (331) and coupling hole (352).

[0072] Each bonding section (331) can be formed into a roughly cylindrical shape by extending in the vertical direction centered on the PCB housing (33).

[0073] Thus, the diffuser (35) and the PCB housing (33) can be firmly fixed to the lower surface of the upper plate (22) of the airbag cover (11) by the lower portion of the plurality of connecting projections (24) whose cross-sectional area is expanded by sequentially penetrating the plurality of connecting holes (352) and connecting tubes (331) and then applying heat and pressure through a riveting process.

[0074] And on the lower surface of the diffuser (35), one or more fixing ribs (353) extending in the left and right directions on the front and rear sides of the diffusion protrusion (351) may be formed to protrude downward. Thus, each fixing rib (353) may be positioned and fixed between the front and rear surfaces of the PCB (32) and the upper surface and joining portion (331) of the PCB housing (33).

[0075] Here, the PCB housing (33) can be manufactured by injection molding using the same synthetic resin material as the airbag cover (11).

[0076] The diffuser (34) can be manufactured using a synthetic resin material containing a diffusion agent so as to diffuse light in various directions and angles.

[0077] For example, the diffuser (35) can be manufactured using a material such as polycarbonate (PC) or polymethyl methacrylate (PMMA).

[0078] In this diffuser (35), the diffusion projection (351) may be made transparent so that it can diffuse and transmit light, or may be manufactured using a material mixed with a diffusion agent, or may be coated so that it can transmit light, and the remaining portion may be colored black or the like so that it blocks the diffusion of light, or may have a coating layer formed on the outer surface or a sticker attached to it.

[0079] The light guide (34) can be manufactured using a transparent synthetic resin material so as to transmit light incident through both ends upward.

[0080] For example, the light guide (34) can be manufactured using a material such as polycarbonate or polymethyl methacrylate.

[0081] In this way, the present invention can provide both a lighting function and a display function simultaneously by using a lighting emblem module.

[0082] And the present invention can implement dynamic effects by irradiating light of different colors and intensities using only a pair of LEDs.

[0083]

[0084] Next, the coupling relationship between the lighting emblem module and the airbag cover to which it is applied according to a preferred embodiment of the present invention is described.

[0085] First, the worker assembles the lighting emblem module (12) by placing a light guide (34) between a pair of LEDs (31) installed on both ends of the upper surface of the PCB (32), and placing a diffuser (34) and a PCB housing (33) on the upper and lower sides of the PCB (32), respectively.

[0086] At this time, the PCB (32) can be placed on the installation space formed on the upper surface of the PCB housing (33), and the light guide (34) can be placed on the space formed on the lower surface of the diffuser (35).

[0087] Next, the worker places the lighting emblem module (12) under the upper plate (22) of the airbag cover (11) and moves the lighting emblem module (12) upward to join it.

[0088] At this time, the diffusion projection (351) provided on the upper surface of the diffuser (35) is coupled to the installation hole (23) formed in the upper plate (22), and the plurality of coupling projections (24) formed on the lower surface of the upper plate (22) are coupled by penetrating the coupling hole (352) of the diffuser (35) and the coupling part (331) of the PCB housing (33), respectively, and then the cross-sectional area of ​​the lower part is expanded by a riveting process, thereby firmly fixing the lighting emblem module (12).

[0089] When the assembly of the airbag cover assembly (10) is completed through this process, the airbag housing with the airbag cushion built into it is combined with the lower part of the airbag cover (11) and then mounted on the steering wheel.

[0090]

[0091] Next, the operating method of the lighting emblem module according to a preferred embodiment of the present invention is described in detail.

[0092] For example, FIGS. 6A to 6C are drawings illustrating the operating principle of the lighting emblem module, respectively, and FIGS. 7A to 7D and FIGS. 8A to 8D are drawings illustrating a method of controlling the concentration and color of light using the operating principle illustrated in FIGS. 6A to 6C, respectively.

[0093] As shown in Fig. 6a, a light guide (34) is placed between a pair of LEDs (31), and a plurality of optical patterns (341) are formed on the light guide (34) at preset intervals.

[0094] As shown in Fig. 6b, when the LED (hereinafter referred to as 'left LED (L1)') positioned on the left side of the light guide (34) and the LED (hereinafter referred to as 'right LED (L2)') positioned on the right side of the light guide (34) are driven with the same color and the same duty ratio, the light irradiated from the left and right LEDs is uniformly irradiated upward with the same color through the light guide (34).

[0095] As shown in Fig. 6c, when the left LED (L1) irradiates red light and the right LED (L2) irradiates green light, a gradient area is generated in the approximate center of the light guide (34) that sequentially irradiates orange, yellow, and light green colors in a mixed color from left to right, that is, orange, yellow, and light green colors.

[0096] In this embodiment, by applying the operating principle described with reference to FIGS. 6A to 6C, it is possible to implement dynamic effects that can express effects such as dynamic movement, blinking, and color mixing and changes by adjusting the concentration and color of light.

[0097] FIGS. 7a to 7d illustrate a state in which the left and right LEDs (L1, L2) are illuminated with different colors, for example, red and green, respectively, and the duty ratio of each LED (L1, L2) is adjusted to implement a dynamic effect.

[0098] For example, during a preset time, the duty ratio of the driving signal driving the left LED (L1) may gradually increase, and the duty ratio of the driving signal driving the right LED (L2) may gradually decrease.

[0099] Accordingly, the lighting emblem module (12) can implement a dynamic effect of moving the gradient area that examines the mixed colors from left to right.

[0100] FIGS. 8a to 8d illustrate a state in which the left and right LEDs (L1, L2) are illuminated with the same color, i.e., white, and the duty ratio of each LED (L1, L2) is adjusted to implement a dynamic effect.

[0101] For example, the duty ratio of the driving signal driving the left LED (L1) may be adjusted to gradually increase from a minimum value to a first preset value during a first preset time, increase to a second preset value that is higher than the first preset value during a second preset time, increase to a third preset value that is a maximum during a third preset time, and then maintain the third preset value during a fourth preset time.

[0102] And the duty ratio of the driving signal driving the right LED (L2) can be adjusted to be maintained at a fourth set value set as the minimum during the first and second set times, gradually increase to a fifth set value set higher than the fourth set value during the third set time, and gradually increase from the fifth set value to the third set value during the fourth set time.

[0103] Accordingly, the lighting emblem module (12) can implement a dynamic effect of moving the gradient area by expanding the white area to the right while displaying the left and right sides of the light guide (34) in white and black, respectively.

[0104] For example, the lighting emblem module (12) can be divided into operation modes corresponding to the driving status of the vehicle or the operating status of each device, such as welcome mode, goodbye mode, electric vehicle start on and off mode, reverse gear mode, voice recognition mode, high voltage charging mode, charging error mode, driving mode, and side vehicle approach mode, and can maintain a blinking or lighting state according to each operation mode, expand or move the display area in the left and right direction, and mix or change colors to implement various dynamic effects.

[0105] Through the process described above, the present invention can provide both a lighting function and a display function simultaneously by using a lighting emblem module.

[0106] And the present invention can implement various dynamic effects such as moving, expanding, or contracting by irradiating light of different colors and intensities using only a pair of LEDs.

[0107] That is, the present invention can implement static lighting effects such as single-color lighting and gradient lighting, as well as dynamic effects such as dimming and movement (FLOW) by placing a pair of LEDs on both sides of a light guide body.

[0108] Accordingly, the present invention can guide drivers and passengers to intuitively check the current driving status or operating status by implementing dynamic effects corresponding to various operating modes that indicate the driving status of a vehicle or the operating status of each device.

[0109] Although the invention made by the present inventor has been specifically described according to the above embodiments, the present invention is not limited to the above embodiments, and it goes without saying that various modifications can be made without departing from the spirit of the invention.

[0110] That is, although the above embodiment describes that the lighting emblem module is applied to the airbag cover assembly, the present invention is not necessarily limited thereto.

[0111] For example, the present invention may be modified to apply the lighting emblem module to various devices and locations provided in a vehicle, such as a steering wheel or cockpit.

[0112] The present invention applies to a lighting emblem module that provides a lighting function and a display function simultaneously by using a lighting emblem module and to an airbag cover assembly technology to which the lighting emblem module is applied.

Claims

1. A printed circuit board (hereinafter referred to as “PCB”) on which a pair of LEDs are installed at each end. A PCB housing on which the PCB is mounted on the upper surface, A light guide installed between the pair of LEDs and providing an optical path so that light emitted from each LED is emitted upwards on the PCB; and Including a diffuser installed on the upper part of the PCB and diffusing the light transmitted from the light guide upward while shielding each LED and the upper surface of the PCB. A lighting emblem module characterized by simultaneously providing a lighting function and a display function that indicates the driving status of the vehicle and the operating status of devices provided in the vehicle.

2. In paragraph 1, The above pair of LEDs are provided as side-view multi-color LEDs that respectively incident light on both ends of the light guide body, A lighting emblem module characterized in that the PCB is provided with a controller that drives the pair of LEDs in different colors or the same color according to a control signal from a control unit provided in the vehicle.

3. In paragraph 2, A lighting emblem module characterized in that the controller controls the on and off timing and the duty ratio of each driving signal for driving the pair of LEDs so as to implement a dynamic effect preset for each operating mode indicating the driving status of the vehicle or the operating status of each device provided in the vehicle.

4. In paragraph 1, The above diffuser is formed in a plate shape, A space is formed on the lower surface of the above diffuser in which the light guide is installed, A lighting emblem module characterized in that a diffusion projection formed on the upper surface of the above diffuser is formed to extend long along the left and right directions to be combined with an installation hole formed on the airbag cover.

5. In paragraph 4, On the front and rear sides of the PCB housing, a plurality of joint holes are formed at preset intervals along two rows, respectively. A plurality of coupling holes are formed at positions corresponding to the plurality of coupling holes on the front and rear sides of the above diffuser, respectively. The above diffuser and the PCB housing are fixed to the airbag cover by applying heat and pressure to the lower portions of the plurality of joining protrusions formed on the airbag cover and increasing the cross-sectional area through a riveting process while being joined by penetrating the plurality of joining holes and joining workpieces.

6. In paragraph 5, On the lower surface of the above diffuser, one or more fixing ribs are formed protruding downwards, extending in the left and right directions on the front and rear sides of the diffusion protrusion, respectively. A lighting emblem module characterized in that the above-mentioned fixing rib is positioned and fixed between the front and rear surfaces of the PCB, the upper surface of the PCB housing, and the joining portion.

7. An airbag cover assembly having an applied lighting emblem module, characterized in that it simultaneously provides a lighting function and a display function that displays the driving status of the vehicle and the operating status of devices provided in the vehicle, including the lighting emblem module described in any one of Articles 1 to 6.

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