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EP-3992750-B1 - ELECTRONIC DEVICE COMPRISING HOUSING STRUCTURE

EP3992750B1EP 3992750 B1EP3992750 B1EP 3992750B1EP-3992750-B1

Inventors

  • DANG VAN, Nghia
  • DAO XUAN, Truong

Dates

Publication Date
20260506
Application Date
20190805

Claims (7)

  1. An electronic device comprising: a housing (30); a rear case (60) coupled to the housing; a sealing portion (50) arranged between the housing and the rear case and comprising a first sealing member (51), a second sealing member (52) and a connecting portion (53) arranged to connect the first sealing member to the second sealing member; a first acoustic path (410) extending in a single direction and arranged in the rear case (60) and including a first end portion arranged on an outer circumferential surface of the rear case (60) and a second end portion arranged between the housing (30) and the rear case (60); a second acoustic path (420) extending in a single direction and arranged in the housing (30) and including a first end portion arranged between the housing (30) and the rear case (60) and a second end portion arranged to be connected to an acoustic device; and an acoustic chamber (430) connecting the first end portion of the second acoustic path to the second end portion of the first acoustic path, wherein the first acoustic path is arranged at a different height than the second acoustic path in a thickness direction of the electronic device, wherein the first sealing member (51) comprises a first sealing area (5110) having a first sealing surface in contact with the housing and a second sealing surface in contact with the rear case, and a second sealing area (5120) having a surface in contact with the housing, and the second sealing area is arranged at the second end portion of the first acoustic path and includes an inclined portion arranged to face the second end portion of the first acoustic path. wherein the second sealing member (52) comprises a first sealing surface in contact with the housing and a second sealing surface in contact with the rear case, wherein the first sealing member and the second sealing member are arranged at different heights in a thickness direction of the electronic device and the second sealing member and the first sealing member are sequentially arranged in a direction in which the housing moves to couple to the rear case wherein the connecting portion includes only a first connection area (531) in which the first sealing area (5110) is connected to the second sealing member (52).
  2. The electronic device of claim 1, wherein the first sealing member and the second sealing member each include a flexible material.
  3. The electronic device of claim 1, wherein: the first connection area (531) has a first surface in contact with the housing and a second surface in contact with the rear case, and the second sealing area protrudes from the first sealing area and the first connection area in the thickness direction of the electronic device.
  4. The electronic device of claim 1, further comprising a connecting portion mounting groove arranged in one of the housing and the rear case, wherein the connecting portion includes a connecting portion mounting portion (535) inserted into the connecting portion mounting groove.
  5. The electronic device of claim 1, wherein a thickness of an overlapping area (5113) in which the first sealing area is in contact with one of the housing and the rear case is less than or equal to a distance between a lower end portion of the first acoustic path and an upper end portion of the overlapping area.
  6. The electronic device of claim 1, wherein a width of the acoustic chamber in the direction in which the first acoustic path extends is 25 % or less than a diameter of the first acoustic path.
  7. The electronic device of claim 1, further comprising a first sealing member mounting groove (325) arranged in one of the housing and the rear case, wherein the first sealing member includes a first sealing member mounting portion inserted into the first sealing member mounting groove.

Description

TECHNICAL FIELD Disclosed is an electronic device including a housing structure. BACKGROUND ART In an electronic device such as a smartphone, a tablet personal computer (PC), or a wearable device, at least one acoustic component may be mounted on a main body housing. The mounted acoustic component may be connected to the outside of the main body housing by using an acoustic passage. Also, the mounted acoustic component may include a waterproof structure to prevent foreign substances from entering an acoustic generator. The waterproof structure is a structure for preventing penetration of moisture even under a specific atmospheric pressure, and may be formed in the acoustic component. A sealing structure may be provided to protect the acoustic component arranged inside the main body housing from external foreign substances. To this end, a sealing member is interposed between a housing constituting the main body housing and a rear case, and the acoustic component may be sealed from the outside by applying a certain pressure and compressing the housing and the rear case. The sealing member interposed between the housing and the rear case to seal the acoustic component from the outside may affect acoustic performance due to it blocking the acoustic passage. KR 20150082043 A, KR 20180022195 A, KR 20190026461 A, KR 101771456 B1, US 2018/103307 A1, and US 2014/339012 A1 relate to electronic devices having different housing and case structures. SUMMARY OF INVENTION The present invention provides an electronic device in accordance with claim 1. Further aspects of the invention are outlined in the dependent claims. The embodiments relating to FIGS. 8A and 8B and corresponding description passages are covered by the claims, whereas the embodiments relating to the remaining figures and corresponding description passages are useful for understanding the invention. BRIEF DESCRIPTION OF DRAWINGS FIG. 1A is a perspective view of a front surface of a mobile electronic device according to an embodiment.FIG. 1B is a perspective view of a rear surface of the electronic device of FIG. 1A.FIG. 2 is an exploded perspective view of the electronic device of FIG. 1A.FIG. 3 is a cross-sectional view of the electronic device of FIG. 1A, which is taken along a line A-A.FIG. 4 is a perspective view of a sealing portion according to an embodiment.FIG. 5A is a cross-sectional view before a housing and a rear case are coupled, according to an embodiment.FIG. 5B is a cross-sectional view after a housing and a rear case are coupled, according to an embodiment.FIG. 6 is a partially enlarged view of a housing, a rear case, and a sealing portion, according to an embodiment.FIG. 7A is a plan view of a sealing portion, a first acoustic path, and a second acoustic path, according to an embodiment.FIG. 7B is a cross-sectional view of the sealing portion shown in FIG. 7A, taken along lines A-A and B-B.FIG. 8A is a plan view of a sealing portion, a first acoustic path, and a second acoustic path, according to an embodiment.FIG. 8B is a cross-sectional view of the sealing portion shown in FIG. 8A, taken along lines A-A and B-B.FIG. 9A is a plan view of a sealing portion, a first acoustic path, and a second acoustic path, according to an embodiment.FIG. 9B is a cross-sectional view of the sealing portion shown in FIG. 9A, taken along lines A-A and B-B.FIG. 10A is a plan view of a sealing portion, a first acoustic path, and a second acoustic path, according to an embodiment.FIG. 10B is a cross-sectional view of the sealing portion shown in FIG. 10A, taken along lines A-A and B-B.FIG. 11A is a cross-sectional view of a housing, a rear case, and a sealing portion, according to an embodiment.FIG. 11B is a plan view of a sealing portion, a first acoustic path, and a second acoustic path, according to an embodiment.FIG. 11C is a cross-sectional view of the sealing portion shown in FIG. 11A, taken along lines A-A and B-B.FIG. 12A is a cross-sectional view of a housing, a rear case, and a sealing portion, according to an embodiment.FIG. 12B is a plan view of a sealing portion, a first acoustic path, and a second acoustic path, according to an embodiment.FIG. 12C is a cross-sectional view of the sealing portion shown in FIG. 12A, taken along lines A-A and B-B. MODE OF DISCLOSURE Hereinafter, the configuration and operation of the disclosure will be described in detail through the embodiments of the accompanying drawings. Terms used in the specification will be described in brief, and the disclosure will be described in detail. Although terms used in the disclosure are selected with general terms popularly used at present under the consideration of functions in the disclosure, the terms may vary according to the intention of those of ordinary skill in the art, judicial precedents, or introduction of new technology. In addition, in a specific case, the applicant voluntarily may select terms, and in this case, the meaning of the terms is disclosed in a correspondi