KR20170075373A - Virtual engine sound apparatus - Google Patents

Abstract

The present invention relates to a virtual engine sound generating apparatus. Since the apparatus of the present invention is used in an environment with a lot of water and the like, it is important to prevent moisture from penetrating from the outside to the inside. The housing 10 and the cover 30 form an outer appearance of the present invention in which the seal 50 acts as a watertight seal between the housing 10 and the cover 30. The seal 50 includes a seal body 52 in the form of a closed curve and a seating flange 56 seated in the seal seating space 38 of the cover 30 along the outer edge of the seal body 52, And an inner skirt 57 is formed along the opposite edge of the seal body 52. [ The seal body 52 is positioned between the outer pressing fence 20 of the housing 10 and the inner pressing fence 37 of the cover 30 and the surface of the sealing body 52 is provided with projecting ribs 54 And is in close contact with the surfaces of the outer pressing fence 20 and the outer pressing fences 37. [ A speaker fence 44 is formed on the rear edge of the speaker grill 42 of the cover 30 and a speaker seal 64 is provided on the edge of the speaker cone 62 provided at the front end of the speaker 60, The speaker seal 64 is pushed by the speaker fence 44 to perform the sealing action. According to the present invention, there is an advantage that the durability and the operation characteristics of the apparatus are improved because the influence of the external environment hardly occurs inside the virtual engine sound generating apparatus.

Description

Technical Field [0001] The present invention relates to a virtual engine sound apparatus,

The present invention relates to a virtual engine sound generating apparatus, and more particularly, to a virtual engine sound generating apparatus that generates engine sound virtually in a hybrid vehicle or an electric vehicle.

When a hybrid vehicle or an electric vehicle is running at a low noise level, the noise generated by the vehicle is very low, so pedestrians, particularly visually impaired persons, can not recognize the approach of the vehicle.

In order to prevent the occurrence of this situation, a hybrid engine or electric car recently introduced employs a virtual engine sound system. The virtual engine sound system generates a virtual engine sound and a warning sound through a speaker And helps pedestrians to recognize the approach of the car easily.

Such a virtual engine sound generating device should be installed on the front bumper of the vehicle because it should be heard by pedestrians. However, there is a problem that the front damper of the vehicle is most affected by the surrounding environment.

That is, water is added to a large amount of water, for example, as the vehicle travels, and waterproofing is very important in a virtual engine sound generating apparatus. Particularly, in the virtual engine sound generating device, although the waterproof is good, the sound generated from the speaker is difficult to be transmitted to the outside.

Korean Patent Publication No. 10-2013-0123227 Japanese Patent No. 1997-129304

An object of the present invention is to provide a virtual engine sound generating apparatus capable of smoothly delivering sound to the outside while minimizing the influence of the environment to the inside of the virtual engine sound generating apparatus.

According to an aspect of the present invention for achieving the above object, the present invention provides a portable terminal including a housing having a predetermined inner space formed therein, a front end sidewall formed at a front end thereof, and an outer push fence provided at an inner side of the front end sidewall, A speaker installed in an inner space of the housing to generate sound by control of a substrate placed in an inner space of the housing, a speaker cone at the front end being made of a waterproof material, and a speaker seal being installed at a front edge of the speaker cone; The side wall of the cover mounted on the side wall of the housing is provided with an edge and an inner pressing fence is provided on the inner side of the side wall of the cover at a predetermined distance from the side wall of the cover to surround the edge of the speaker grill for transmitting the sound of the speaker to the outside A cover formed with a speaker fence for pressing the speaker seal, Wherein a sealing flange is disposed between the outer pressing fence and the inner pressing fence and is pressed by the tip of the outer pressing fence at the outer side of the sealing body, And a seal for pressing one side of the inner pressing fence.

A membrane is installed on one side of the housing to adjust the pressure between the inside space and the outside and discharge moisture generated in the inside space to the outside.

At least one surface of the seal body is formed with a plurality of protruding ribs closely attached to the housing or the cover.

An inner skirt is formed on the opposite side of the seal body, on which the seating flange is formed, and is in close contact with the inner surface of the inner pressing fence of the cover.

The inner skirt extends in parallel with the seal body and forms a push channel on which the inner push fence is seated.

At the position corresponding to the insert nut of the cover in the seating flange of the seal, the contact lips are formed into a cylindrical shape and are in close contact with the insert nut.

At the front end face of the outer pressing fence or the surface of the seal seating space of the corresponding cover, the front end face of the inner pressing fence, or the pressing end of the corresponding housing, a pushing projection in the form of a closed curve is formed at at least one side.

A hook is provided at the tip of the speaker fence of the cover for pressing the speaker seal.

In the virtual engine sound generating apparatus according to the present invention, the following effects can be obtained.

According to the present invention, the moisture is transferred to the interior through the space between the housing and the cover forming the outer appearance of the apparatus, and the outer pressing fence of the housing and the inner pressing fence of the cover completely cooperate with each other, The speaker cone and the speaker seal of the speaker are blocked. Therefore, no moisture is transmitted to the inside of the apparatus, and the operation of the apparatus is assured and the durability is improved.

1 is a perspective view showing a configuration of a preferred embodiment of a virtual engine sound generating apparatus according to the present invention.
2 is an exploded perspective view showing a configuration of an embodiment of the present invention.
3 is a perspective view showing a configuration of a housing constituting an embodiment of the present invention.
4 is a cross-sectional view cut away through the center of a speaker grill in an embodiment of the present invention.
5 is a cross-sectional view of an embodiment of the present invention in which a portion with an insert nut is cut away.
6 is an enlarged cross-sectional view showing an enlarged view of a portion A in Fig.
7 is an enlarged cross-sectional view showing an enlarged view of a portion B in Fig. 5;

Hereinafter, some embodiments of the present invention will be described in detail with reference to exemplary drawings. It should be noted that, in adding reference numerals to the constituent elements of the drawings, the same constituent elements are denoted by the same reference symbols as possible even if they are shown in different drawings. In the following description of the embodiments of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the understanding why the present invention is not intended to be interpreted.

In describing the components of the embodiment of the present invention, terms such as first, second, A, B, (a), and (b) may be used. These terms are intended to distinguish the constituent elements from other constituent elements, and the terms do not limit the nature, order or order of the constituent elements. When a component is described as being "connected", "coupled", or "connected" to another component, the component may be directly connected or connected to the other component, Quot; may be "connected," "coupled," or "connected. &Quot;

According to the drawings, the housing 10 forms an appearance and a skeleton of the present invention. A predetermined inner space 12 is formed in the housing 10. In the inner space 12, various components to be described below are seated.

The housing side wall 14 forms an outer side surface of the housing 10. A tip side wall 14 'is formed at the tip of the housing side wall 14. An inner side area formed by the tip side wall 14' is wider than an inner side area formed by the housing side wall 14. That is, The side wall 14 'is formed so as to protrude further from the outer side of the housing 10 than the housing side wall 14. The area formed by the front side wall 14' A plurality of hooking jaws 15 are formed on the outer surface of the cover 30. The configuration of the hooking jaws 15 is well shown in Figures 3 and 6. The hooking jaws 15 are mounted on the cover 30 ). ≪ / RTI >

A substrate seating portion 16 is formed on the inner surface of the inner space 12. The substrate seating portion 16 is provided with a substrate 28 for operation and control of the inventive device. A connector portion 18 is formed on an outer surface of one side of the housing 10. An external waterproof connector is coupled to the connector 18. The connector portion 18 serves to connect a power source and a signal between the outside and the substrate 28. The connector portion 18 is disposed in a direction perpendicular to the running direction of the vehicle so that the height of the connector portion 18 does not exceed the housing side wall 14 to completely block the intrusion of water.

A fastening cylinder 19 is formed at four corners of the inner region formed by the tip side wall 14 '. The fastening cylinder 19 is a portion through which a fastener (not shown) passes. The fastening cylinder 19 is formed in a cylindrical shape.

An outer pressing fence 20 is integrally formed on the inner side of the front end side wall 14 'at a predetermined distance from the front end side wall 14' or at the distal end side wall 14 '. The outer pressing fence 20 forms one closed curve. The outside pressing fence 20 is integrated with the leading end side wall 14 'in the remaining portion except the portion corresponding to the edge of the leading end side wall 14'.

The outer pressing fence 20 is formed so as to connect the both side outer pressing fences 20 in a generally rectangular shape or in an inclined manner at an edge portion in a plan view, and actually forms an octagonal shape. The outer pressing fence 20 presses the outer side of the seal body 52 in the seal 50 described below. A first pressing protrusion (22) protrudes from the upper end of the outer pressing fence (20). The first pressing protrusion 22 is formed so as to form a closed curve over the entire outer pressing fence 20 in this embodiment.

A pressing end 24 is formed on the inner side of the outer pressing fence 20. The pressing end 24 is formed along the entire section of the outside pressing fence 20 so as to protrude by a predetermined width from the inside of the outside pressing fence 20. One side of the seal body (52) of the seal (50) is seated on the pressing end (24). A second pressing protrusion 26 protrudes from the pressing end 24 over the entire section. The second pressing projection 26 protrudes from the pressing end 24 and is brought into close contact with the outer surface of the sealing body 52.

A substrate 28 is installed in the inner space 12 of the housing 10. In the substrate 28, many elements necessary for operation of the inventive device are mounted. The substrate 28 serves as a kind of control unit.

A membrane hole (29) is opened to open to the back surface of the housing (10). The membrane hole 29 is a portion in which a membrane 70 to be described below is installed.

The cover (30) shields the inner space (12) of the housing (10). The cover 30 forms the front surface of the whole apparatus. A cover side wall 32 is formed to surround the edge of the cover 30. The cover sidewall 32 is in close contact with the outer surface of the front end side wall 14 'of the housing 10. A plurality of hook holes (33) are formed on the cover side wall (32). The hooks (15) of the housing (10) are hooked on the hook holes (33).

A nut hole (34) is formed through four corners of the cover (30). The nut hole (33) is provided with an insert nut (36). The insert nut (36) is coupled with a fastener for fastening with the housing (10). The insert nut 36 is made to have a higher hardness than the material of the cover 30.

On the inner side of the cover side wall 32 of the back surface of the cover 30, there is an inside press fence 37 at a predetermined distance from the cover side wall 32. The inner pressing fences 37 form a closed curve as a whole. The inner pushing fence 37 and the outer pushing fence 20 are made to have the same shape.

The back surface of the cover 10 corresponding to the area between the cover side wall 32 and the inside pressing fence 37 becomes the seal seating space 38. [ In the seal seating space 38, one side of the seal 50 to be described below is seated.

A fastening boss (40) protrudes from the inner side of the inside pressing fins (37) on the back surface of the cover (30). The fastening boss 40 is for fastening the speaker 60 to be described below.

The cover 30 has a speaker grill 42. The speaker grill 42 allows the sound reproduced from the speaker 60 to be transmitted to the outside while preventing the speaker 60 from being visible in front of the cover 30. [ In this embodiment, the speaker grill 42 is formed in a circular area.

A speaker fence (44) is formed on the rear surface of the cover (30) surrounding the edge of the speaker grill (42). The speaker fence 44 is made in a circular shape. An edge of the speaker cone 62, which will be described below, is seated on the speaker fence 44 in a close contact manner.

A seal (50) is provided in the seal seating space (38) of the cover (30). The seal 50 is made of a material having good elasticity. The seal 50 may be made of silicone or rubber. A seal body (52) forms a skeleton of the seal (50). 2, 5, and 7, the seal body 52 is made in a substantially 'A' shape in cross section. The seal body 52 forms a closed curve as a whole. On the outer surface of the seal body 52, a protrusion rib 54 protrudes from the seal body 52. In the present embodiment, three protruding ribs 54 are formed side by side. The protruding rib 54 is in close contact with the outer pressing fence 20 and the sealing body 52 having the protruding ribs 54 formed in the space between the outer pressing fence 20 and the inner pressing fence 37 .

A seating flange 56 protrudes outwardly from the seal body 52 along one side edge of the seal body 52. The seating flange 56 is a portion that is seated in the seal seating space 38. The seating flange 56 is formed over a relatively larger area at the four corners of the seal 50. A through hole 56 'is formed in a portion of the mounting flange 56 corresponding to the four corners of the seal 50. A contact lip (57) protrudes at a portion where the through hole (56 ') is formed. The contact lips 57 are generally cylindrical in shape. The diameter of the contact lips (57) increases toward the tip end. The tip of the contact lip (57) is in close contact with one end of the insert nut (36).

An inner side cut 58 is formed on the opposite side of the seal body 52 where the seating flange 56 is formed. The inner skirt 58 extends parallel to the portion of the seal body 52 where the projection ribs 54 are formed. However, the length of the inner skirt 58 is shorter than the corresponding portion of the seal body 52. The inner skirt 58 is in close contact with the outer surface of one side of the inner pressing fence 37.

The channel formed by the seal body 52 and the inner skirt 58 is a fence channel 59. The inside pressing fence 37 of the cover 30 is seated on the fence channel 59.

The speaker 60 reproduces a sound. According to a signal given on the side of the substrate 28, the speaker 60 produces sound. The speaker 60 is fastened to the fastening boss 40 of the cover 30 by fastening means 61.

A speaker cone (62) is located at the best end of the speaker (60). The speaker cone 62 has a substantially conical cross-section as can be guessed from FIG. The speaker cone 62 is made of a waterproof material. This is because the speaker cone 62 forms the front surface of the speaker 60. And a speaker seal 64 surrounding the front edge of the speaker cone 62. The speaker seal 64 is substantially circular and made of a material having good elasticity. The speaker seal 64 is seated on the edge of the speaker cone 62 and seated on the speaker fence 44 of the cover 30 and brought into close contact therewith.

A membrane (70) is installed in the membrane hole (29) of the housing (10). The membrane 70 serves to block the membrane hole 29. The membrane 70 functions as a gore-tex, for example, to discharge moisture to the outside of the housing 10 in one direction, and to adjust the air pressure between the inside space 12 and the outside. This is because the internal space 12 is sealed by the seal 50 or the like so that when the internal air pressure is increased due to the heat generated in the speaker 60 or the substrate 28 during operation of the apparatus, .

Hereinafter, how the virtual engine sound generating apparatus according to the present invention having the above-described structure is assembled and used will be described in detail.

In the apparatus of the present invention, the seal (50) is mounted on the cover (30). The seating flange 56 of the seal 50 is seated in the seal seating space 38 of the cover 30 and the inside pressing fence 37 of the cover 30 is inserted into the fence channel 59 . The seal 50 is attached to the cover 30 while the seal body 52 and the inner skirt 58 are in close contact with the inner pressing fence 37. [

Next, the speaker 60 is mounted on the back surface of the cover 30. So that the fastener 61 passes through the corresponding part of the speaker 60 and is fastened to the fastening boss 40. The speaker fence 44 is brought into close contact with the edge of the speaker cone 62 at the front end of the speaker 60 and the front end of the speaker fence 44 is brought into close contact with the speaker seal 64 in the speaker cone 62 Thereby preventing the passage of moisture. The speaker fence 44 may have a pushing protrusion (not shown) similar to the first pushing protrusion 22 of the outer pushing fence 20 at the upper end thereof.

Next, the housing 10 and the cover 30 are engaged. The inner surface of the cover side wall 32 of the cover 30 is closely attached to the outer surface of the front end side wall 14 'of the housing 10. The cover 30 is fastened to the housing 10 by hooking the hook 15 on the hook 33. When the fastener is inserted through the fastening cylinder 19 of the housing 10 and fastened to the insert nut 36, the fastening of the cover 30 and the housing 30 is assured.

When the moisture between the housing 10 and the cover 30 is to be infiltrated, the apparatus of the present invention assembled as described above is mounted near the front bumper of the automobile. When the moisture penetrates between the housing 10 and the cover 30, (56) is pressed between the bottom of the seal seating space (38) of the cover (30) and the front end side wall (14 ') of the housing (10) Particularly, the first pressing projection 22 more strongly presses the seating flange 56 of the seal 50 against the bottom surface of the seal seating space 38.

The seal body 52 is in close contact with the inner surface of the front end side wall 14 'of the housing 10 even if moisture passes through the seating flange 56, so that moisture transmission is blocked. Particularly, the three protruding ribs 54 of the seal body 52 are in close contact with the inner surface of the tip side wall 14 'to prevent the passage of moisture. The inner pressing fence 37 is closely attached to a portion of the outer peripheral surface of the protruding rib 54 opposite to the protruding rib 54 to prevent the passage of moisture.

The tip end of the inside pressing fence 37 allows the sealing body 52 to closely contact the pressing end 24 of the housing 10. The second pressing protrusion 26 of the pressing end 24 allows the seal body 52 to more closely contact between the inner pressing fence 37 and the pressing end 24. Instead of the second pressing projection 26 of the pressing end 24, a second pressing projection may be provided on the distal end face of the inside pressing fence 37.

The inner skirt 58 surrounds the tip of the inner pushing fence 37 so that even if moisture passes through the portion of the seal body 52, moisture is not further transferred to the inside.

7, the seating flange 56 has a cylindrical lip 57 at a position corresponding to the insert nut 36. Therefore, it is possible to prevent moisture from penetrating through the portion where the insert nut 36 is present.

The intrusion of moisture through the speaker grill 42 will be described while the seal 50 reliably interrupts the penetration of moisture through the space between the cover 30 and the housing 10 as described above.

Intrusion of moisture through the speaker grill 42 is blocked by the speaker fence 44, the speaker cone 62 and the speaker seal 64. When the edge of the speaker cone 62 of the speaker 60 is seated on the front end face of the speaker fence 44, the speaker seals 64 are compressed by the speaker fence 44 to be waterproofed. In addition, since the speaker cone 62 is made of a waterproof material, moisture can not enter into the speaker cone 62 through the speaker cone 62.

In the apparatus of the present invention thus assembled, a mating connector is connected to the connector portion 18 to receive a signal from a control portion of the vehicle, and the speaker 28 is controlled by the board 28 so that sound .

On the other hand, heat may be generated in the speaker 60 or the substrate 28 during use of the apparatus, and the internal pressure may increase due to the heat, or moisture may be generated by saturated steam inside. However, since the membrane 70 is provided, the pressure between the inner space 12 and the outside is adjusted, and the moisture generated in the inner space 12 is discharged to the outside.

The foregoing description is merely illustrative of the technical idea of the present invention, and various changes and modifications may be made by those skilled in the art without departing from the essential characteristics of the present invention. Therefore, the embodiments disclosed in the present invention are not intended to limit the scope of the present invention but to limit the scope of the technical idea of the present invention. The scope of protection of the present invention should be construed according to the following claims, and all technical ideas within the scope of equivalents should be construed as falling within the scope of the present invention.

For reference, in the illustrated embodiment, both the first pressing projection 22 and the second pressing projection 26 are provided, but these projections are not necessarily required. However, by having these protrusions, the waterproof performance can be further increased.

The surface of the seal seating space 38 of the cover 30 opposite to the first pressing projection 22 and the front end face of the inside pressing fence 37 opposite to the second pressing projection 24 The pushing rollers can be formed simultaneously or selectively.

The projection ribs 54 are formed on only one side of the seal body 52. The projection ribs 54 may be formed on both sides of the seal body 52. [

In the illustrated embodiment, the front side wall 14 'and the outer side pressing fence 20 of the housing 10 are integral with each other except for the portion corresponding to the edge of the front side wall 14' , And may be formed to have a predetermined gap.

10: housing 12: inner space
14: housing side wall 14 ': tip side wall
15: hooking jaw 16:
18: connector portion 19: fastening tube
20: outer pressing fence 22: first pressing projection
24: Pushing stage 26: Second pushing projection
28: substrate 29: membrane bore
30: cover 32: cover side wall
33: Hook ball 34: Nut ball
36: insert nut 38: seal seating space
40: fastening boss 42: speaker grill
44: speaker fence 50: seal
52: seal body 54: projection rib
56: seat flange 56 ': through hole
57: Adhesive lip 58: Inner side cut
60: Speaker 62: Speaker cone
64: speaker seal 70: membrane

Claims (8)

A housing having a predetermined inner space formed therein and having a front end side wall formed with a front end edge and an outer push fence provided inside the front end side wall,
A speaker installed in an inner space of the housing to generate sound by control of a substrate placed in an inner space of the housing, a speaker cone at the front end being made of a waterproof material, and a speaker seal being installed at a front edge of the speaker cone,
A side wall of the cover mounted on the side wall of the housing is surrounded by an edge and an inner pressing fence is provided on the inner side of the side wall of the cover at a predetermined distance from the side wall of the cover, and the edge of the speaker grill A cover formed with a speaker fence for pressing the speaker seal,
Wherein a seal body having a closed curve shape is disposed between the outer pressing fence and the inner pressing fence and a seating flange pressed by the tip of the outer pressing fence on the outer side of the sealing body is disposed between the housing and the cover, And a seal adapted to press one side of the seal body against the inner pressing fence.
The virtual engine sound generator as set forth in claim 1, wherein a membrane is provided at one side of the housing for adjusting the pressure between the inside space and the outside and discharging moisture generated in the inside space to the outside.
The virtual engine sound generator according to claim 2, wherein a plurality of protruding ribs closely attached to the housing or the cover are formed on at least one surface of the seal body.
The virtual engine sound generator according to claim 3, wherein an inner side cut is formed on the opposite side of the seal body on which the seating flange is formed, and is in close contact with the inner side surface of the inner pressing fence of the cover.
5. The virtual engine sound generator according to claim 4, wherein the inner skirt extends along the seal body and forms a push channel on which the inner push fence is seated.
6. The virtual engine sound generator as claimed in claim 5, wherein a close-fitting lip is formed in a cylindrical shape at the position corresponding to the insert nut of the cover in the seating flange of the seal, and is closely attached to the insert nut.
The presser foot according to any one of claims 1 to 6, wherein a surface of the front end face of the outer pressing fence or the seal seating space of the corresponding cover, a front end face of the inner pressing fence, or a pressing end of the corresponding housing, Is formed on at least one side of the virtual engine sound generating device.
The virtual engine sound generator according to claim 7, wherein a hook is further provided at the tip of the speaker fence of the cover for pressing the speaker seal.

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