CN-116405845-B - Sound apparatus and vehicle apparatus

Abstract

A sound apparatus and a vehicle apparatus including the same are disclosed. The sound device includes a housing at a rear surface of the vibration member, a connection member between the vibration member and the housing, and a vibration device vibrating the vibration member.

Inventors

• Jin Dahu
• Cui Rongluo
• Cui Minkui
• Quan Shengwu
• JIN GUANGHAO
• LI ZHENGFAN
• JIN TAIHENG
• Pu Kuangao

Assignees

• 乐金显示有限公司

Dates

Publication Date

20260508

Application Date

20221228

Priority Date

20211231

Claims (20)

1. 1. A sound device comprising: A vibration member; A housing at a rear surface of the vibration member; A connection member between the vibration member and the housing, and A vibration device that vibrates the vibration member, Wherein the vibration member includes a vibration member groove portion, The vibrating member groove portion is provided at a first surface of the vibrating member to have a thinner thickness than another portion of the vibrating member, a surface of the vibrating member opposite to the first surface being closer to the vibrating device.
2. 2. The sound device of claim 1, wherein: The vibration member includes a vibration member protruding portion, The vibration member protruding portion protrudes from the rear surface of the vibration member, and The vibrating member protrusion and the vibrating member are configured as one body.
3. 3. The sound device of claim 1, wherein: The vibration device overlaps at least a portion of the vibration member groove portion.
4. 4. The sound device of claim 2, wherein: The vibration device overlaps at least a portion of the vibration member groove portion.
5. 5. The sound device of claim 1, wherein the housing comprises: A bottom; a side portion connected to an outer periphery of the bottom portion so as to protrude toward the vibration member, and A groove portion provided at an inner surface of the side portion.
6. 6. The sound apparatus according to claim 5, wherein a peripheral portion of the vibration member is inserted into the groove portion of the housing.
7. 7. The sound apparatus according to claim 5, wherein the vibration member includes a vibration member protrusion, and The vibration member protruding portion protrudes from the second surface of the vibration member and is inserted into the groove portion.
8. 8. The sound device of claim 5, wherein: the vibration device overlaps at least a portion of the vibration member groove portion, and The peripheral portion of the vibration member is inserted into the groove portion of the housing.
9. 9. The sound apparatus according to claim 6, wherein the connection member includes: A first connecting member provided at an upper end of the groove portion of the housing, and And a second connection member provided at a lower end of the groove portion of the housing.
10. 10. The sound device of claim 1, further comprising an inner housing disposed inside the housing to enclose the vibration device, Wherein, the inner housing includes: A bottom; a side portion connected to an outer periphery of the bottom portion so as to protrude toward the vibration member, and A first reinforcing member provided at a central portion of the bottom portion, the first reinforcing member protruding to contact the vibration apparatus.
11. 11. The sound device of claim 10, wherein: the inner case further includes a second reinforcing member provided at an outer peripheral portion of the first reinforcing member to protrude from the bottom toward the vibration apparatus, and The second reinforcing member has a lower height than the first reinforcing member.
12. 12. The sound device of claim 10, wherein: The inner housing further includes an opening portion formed through a first surface of the bottom and a second surface of the bottom opposite to the first surface, and The opening portion includes at least one of a hole shape and a slit shape.
13. 13. The sound device of claim 10, further comprising: a sub-vibration member between the inner case and the vibration member; A third connecting member between the inner housing and the auxiliary vibrating member, and And a fourth connecting member between the sub-vibration member and the vibration member.
14. 14. The sound device of claim 10, further comprising sound processing circuitry mounted at the bottom of the inner housing, and The sound processing circuit is connected to the vibration device through a signal cable.
15. 15. The sound device of claim 1, wherein: The vibration device is arranged to overlap the vibration member between one corner and the other corner of the vibration member in a first direction or a second direction, and A central portion of the horizontal surface of the vibration device overlaps with a central portion of the horizontal surface of the vibration member or is disposed close to the central portion of the horizontal surface of the vibration member in the first direction or the second direction.
16. 16. The sound apparatus according to claim 15, wherein a center portion of the horizontal surface of the vibration apparatus is arranged in a range of 0% to 15% from the center portion of the horizontal surface of the vibration member in the first direction or the second direction, with respect to a size of an effective vibrating plate of the vibration member.
17. 17. The sound device according to one of claims 1 to 16, wherein the vibration device comprises a vibration means, Wherein the vibration device includes: A vibration section; A first electrode portion at a first surface of the vibration portion, and And a second electrode portion at a second surface of the vibration portion different from the first surface.
18. 18. The sound device of claim 17, wherein the vibration device further comprises: a first cover member at the first electrode portion, and A second cover member at the second electrode portion.
19. 19. The sound device of claim 18, wherein the vibration device further comprises: A first adhesive layer between the first cover member and the first electrode portion, and And a second adhesive layer between the second cover member and the second electrode portion.
20. 20. The sound apparatus according to claim 17, wherein the vibration portion includes an inorganic material portion having piezoelectric characteristics.

Description

Sound apparatus and vehicle apparatus Cross Reference to Related Applications The present application claims priority and its rights of korean patent application No. 10-2021-0194781 filed on the year 2021, month 12 and 31, the entire contents of which are incorporated herein by reference. Technical Field The present disclosure relates to sound devices. Background The device comprises a separate speaker or a sound device providing sound. When the speakers are provided in the device, the speakers occupy space, and thus, the design and spatial arrangement of the device are limited. The speaker applied to the device may be, for example, an actuator including a magnet and a coil. However, when the actuator is applied to the apparatus, its thickness becomes thick. Accordingly, a piezoelectric element for realizing a thin thickness is attracting much attention. Since the piezoelectric element has a brittle characteristic, the piezoelectric element is easily damaged by external impact, and thus, has a problem of low reliability in terms of sound reproduction. Also, when a speaker such as a piezoelectric element is applied to a flexible device, there is a problem in that damage occurs due to a fragile characteristic. Disclosure of Invention The inventors of the present disclosure have recognized the above-described problems, and have performed various experiments for realizing a sound device (or vibration device) that can enhance sound quality and sound pressure level characteristics. Through various experiments, the inventors have discovered a new sound device (or vibration device) and a device including the same, which can enhance sound quality. Accordingly, the present disclosure is directed to an apparatus and a vehicle apparatus including the same that substantially obviate one or more problems due to limitations and disadvantages of the related art. An aspect of the present disclosure is directed to providing a device that may vibrate a vibration member to generate vibration or sound and may enhance sound characteristics and/or sound pressure level characteristics. Additional features and aspects of the disclosure will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the inventive concepts provided herein. Other features and aspects of the inventive concept may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings. To achieve these and other aspects of the inventive concept, as embodied and broadly described, a sound device includes a vibration member, a housing at a rear surface of the vibration member, a connection member between the vibration member and the housing, and a vibration device vibrating the vibration member. In addition to the above-mentioned benefits of the present disclosure, other features and advantages of the present disclosure will be described below, or may be clearly understood by those skilled in the art from such description or illustration. The sound device according to the embodiments of the present disclosure may include a device (or a sound device) that vibrates the display panel or the vibration member, and may generate sound such that the sound of the device travels toward the front surface of the display panel or the vibration member. Other systems, methods, features and advantages will be, or will become, apparent to one with skill in the art upon examination of the following figures and detailed description. It is intended that all such additional systems, methods, features and advantages be included within this description, be within the scope of the present disclosure, and be protected by the accompanying claims. Nothing in this section should be taken as a limitation on those claims. Other aspects and advantages are discussed below in connection with embodiments of the present disclosure. It is to be understood that both the foregoing general description and the following detailed description of the present disclosure are exemplary and explanatory and are intended to provide further explanation of the disclosure as claimed. Drawings The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the principles of the disclosure. Fig. 1 is a perspective view illustrating a sound apparatus according to an embodiment of the present disclosure. Fig. 2 is a sectional view taken along the line A-A' shown in fig. 1. Fig. 3 is another cross-sectional view taken along line A-A' shown in fig. 1. Fig. 4 illustrates a vibration device according to an embodiment of the present disclosure. Fig. 5 is a sectional view taken along line B-B' shown in fig. 4. Fig. 6 is a perspective view of the piezoelectric vibrating portion shown