# US 2020/0393162 A1 · Fixing structure and ventilation fan therefor > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2020/0393162 A1 - Document ID: US20200393162A1 - Status: Published application - Kind: A1 - Application number: 16/781,921 - Filed: 2020-02-04 - Published: 2020-12-17 - Earliest claimed: 2019-06-14 - Assignees: Delta Electronics, Inc. - Applicants: Delta Electronics, Inc. - Inventors: Ying-Huang Chuang; Chun-Wei Chen; Wen-Hsiang Lin - Web page: https://patentgrep.com/patent/US20200393162A1 ## CPC - F24F 13/20: Casings or covers - F24F 7/007: with forced flow (using ducting systems F24F7/06) - F24F 13/06: Outlets for directing or distributing air into rooms or spaces, e.g. ceiling air diffuser - F24F 2013/205: {Mounting a ventilator fan therein} - F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02) ## Abstract The present disclosure provides a fixing structure including a base, a first fastener, and a second fastener. The first fastener is disposed on the base and comprises a first hook portion, a first accommodation portion and a first opening portion. The second fastener is disposed on the base and comprises a second hook portion, a second accommodation portion and a second opening portion. A guiding groove is defined by and located between the first and second fasteners and is in communication with the first and second accommodation portions. A positioning channel is defined by the guiding groove, and the first and second accommodation portions, collaboratively. The first and second opening portions are located on the opposite sides of the positioning channel, respectively. ## Claims ### Claim 1 A fixing structure, comprising: a base; a first fastener disposed on the base and comprising a first hook portion, a first accommodation portion and a first opening portion; and a second fastener disposed on the base and comprising a second hook portion, a second accommodation portion and a second opening portion; wherein a guiding groove is defined by and located between the first fastener and the second fastener and is in communication with the first fastener and the second fastener, and a positioning channel is defined by the guiding groove, the first accommodation portion and the second accommodation portion, collaboratively, wherein the first opening portion and the second opening portion are located on the opposite sides of the positioning channel, respectively. ### Claim 2 (depends on 1) The fixing structure according to claim 1, wherein during the process of fixing the elastic element on the fixing structure, a winding body of the elastic element is first accommodated in the guiding groove and then is rotated by an angle, thereby passing through the first opening portion and the second opening portion and being partially accommodated in the positioning channel. ### Claim 3 (depends on 2) The fixing structure according to claim 2, wherein the angle is greater than 0 degrees. ### Claim 4 (depends on 1) The fixing structure according to claim 1, wherein the first fastener further comprises a first tongue portion, the first tongue portion is extended from the first fastener toward the second opening portion of the second fastener, and a gap is defined by and located between the first tongue portion and an end portion of the second hook portion of the second fastener. ### Claim 5 (depends on 4) The fixing structure according to claim 4, wherein the gap is smaller than a wire diameter of the elastic element, and the first tongue portion is deformable. ### Claim 6 (depends on 1) The fixing structure according to claim 1, wherein the second fastener further comprises a second tongue portion, the second tongue portion is extended from the second fastener toward the first opening portion of the first fastener, and a gap is defined by and located between the second tongue portion and an end portion of the first hook portion of the first fastener. ### Claim 7 (depends on 6) The fixing structure according to claim 6, wherein the gap is smaller than a wire diameter of the elastic element, and the second tongue portion is deformable. ### Claim 8 (depends on 1) The fixing structure according to claim 1, wherein the first hook portion and the second hook portion are subjected to chamfering, and the shortest distance between the first hook portion and the base and the shortest distance between the second hook portion and the base are smaller than a wire diameter of the elastic element. ### Claim 9 (depends on 1) The fixing structure according to claim 1, wherein each of the first hook portion and the second hook portion comprises a turning portion and an end portion, and at least one of the turning portion and the end portion has a curved-surface structure. ### Claim 10 (depends on 1) The fixing structure according to claim 1, wherein each of the first accommodation portion and the second accommodation portion has an inner diameter, and the inner diameter is greater than two times of a wire diameter of the elastic element. ### Claim 11 (depends on 1) The fixing structure according to claim 1, wherein a wire diameter of the elastic element is in the range between 1.0 mm and 2.0 mm. ### Claim 12 A ventilation fan mounted on a ceiling, the ceiling comprising a mounting vent, a first side and a second side, the ventilation fan comprising: a case disposed on the first side of the ceiling and comprising a first vent, wherein the first vent is adjacent to the mounting vent of the ceiling; a fan assembly accommodated in the case; and an outer cover disposed on the second side of the ceiling and comprising: at least one fixing structure comprising: a base; a first fastener disposed on the base and comprising a first hook portion, a first accommodation portion and a first opening portion; and a second fastener disposed on the base and comprising a second hook portion, a second accommodation portion and a second opening portion; wherein a guiding groove is defined between the first fastener and the second fastener and is in communication with the first fastener and the second fastener, and a positioning channel is defined by the guiding groove, the first accommodation portion and the second accommodation portion, collaboratively, wherein the first opening portion and the second opening portion are located on the opposite sides of the positioning channel, respectively; and at least one elastic element being fixed with the at least one fixing structure and extended through the first vent of the case to be connected to the case. ### Claim 13 (depends on 12) The ventilation fan according to claim 12, wherein the at least one fixing structure and the outer cover are integrally formed with each other. ### Claim 14 (depends on 12) The ventilation fan according to claim 12, wherein during the process of fixing the elastic element on the fixing structure, a winding body of the elastic element is first accommodated in the guiding groove and then is rotated by an angle, thereby passing through the first opening portion and the second opening portion and being partially accommodated in the positioning channel. ### Claim 15 (depends on 12) The ventilation fan according to claim 12, wherein the at least one elastic element comprises a winding body and two extending portions, the two extending portions are connected to the opposite sides of the winding body, respectively, and are configured to be connected to the case. ### Claim 16 (depends on 12) The ventilation fan according to claim 12, wherein the first fastener further comprises a first tongue portion, the first tongue portion is extended from the first fastener to the second opening portion of the second fastener, a gap is defined by and located between the first tongue portion and an end portion of the second hook portion of the second fastener, the gap is smaller than a wire diameter of the elastic element, and the first tongue portion is deformable. ### Claim 17 (depends on 12) The ventilation fan according to claim 12, wherein the second fastener further comprises a second tongue portion, the second tongue portion is extended from the second fastener to the first opening portion of the first fastener, a gap is defined by and located between the second tongue portion and an end portion of the first hook portion of the first fastener, the gap is smaller than a wire diameter of the elastic element, and the second tongue portion is deformable. ### Claim 18 (depends on 12) The ventilation fan according to claim 12, wherein the first hook portion and the second hook portion of the fixing structure are subjected to chamfering, and the shortest distance between the first hook portion and the base and the shortest distance between the second hook portion and the base are smaller than a wire diameter of the elastic element. ### Claim 19 (depends on 12) The ventilation fan according to claim 12, wherein each of the first hook portion and the second hook portion of the fixing structure comprises a turning portion and an end portion, and at least one of the turning portion and the end portion has a curved-surface structure.