# US 2018/0320698 A1 · Local ventilation equipment and blower therein > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2018/0320698 A1 - Document ID: US20180320698A1 - Status: Published application - Kind: A1 - Application number: 15/960,720 - Filed: 2018-04-24 - Published: 2018-11-08 - Earliest claimed: 2017-05-02 - Assignees: LG Electronics Inc. - Applicants: LG Electronics Inc. - Inventors: Jongseong JI; Wontae KIM - Web page: https://patentgrep.com/patent/US20180320698A1 ## CPC - F04D 25/0606: {the electric motor being specially adapted for integration in the pump} - F04D 17/162: {Double suction pumps} - F04D 25/06: the pump being electrically driven (F04D25/08 takes precedence) - F04D 25/08: the working fluid being air, e.g. for ventilation - F04D 29/281: {for fans or blowers} - F04D 29/4206: {especially adapted for elastic fluid pumps} - F04D 29/424: {Double entry casings} - F04D 29/626: {Mounting or removal of fans} - F04D: NON-POSITIVE-DISPLACEMENT PUMPS (engine fuel-injection pumps F02M; ion pumps H01J41/12; electrodynamic pumps H02K44/02) ## Abstract Disclosed herein are a local ventilation equipment and a blower therein. The local ventilation equipment includes: a main body having an intake port in a bottom and an interior area therein; and a blower installed in the interior area of the main body to generate air flow that sucks outside air into the main body through the intake port. The blower comprises an impeller that rotates on a shaft extending laterally and has therein a space to which air sucked through a side is introduced; a scroll housing that accommodates the impeller and has a suction hole formed on a side via which outside air is introduced into the space; and a driving unit that is installed in a space between the main body and the scroll hosing to supply power to rotate the impeller. ## Claims ### Claim 1 Ventilation equipment comprising: a main body that includes (i) a first intake port in a first portion of the main body and (ii) an interior area of the main body; and a blower that is located in the interior area of the main body and that is configured to generate air flow from an exterior area of the main body into the interior area of the main body through the first intake port, wherein the blower includes: an impeller that is configured to rotate about a shaft, the shaft extending in a first direction and including an interior area of the impeller to which air flows through an opening of the impeller, a scroll housing that accommodates the impeller and that includes a suction hole of the scroll housing through which air flows from an exterior area of the scroll housing into the interior area of the impeller, and a driving unit that is coupled between the main body and the scroll hosing and that is configured to rotate the impeller. ### Claim 2 (depends on 1) The equipment of claim 1, wherein the driving unit includes: a motor case, a motor that is coupled to the motor case and that includes a rotor and a stator, and a shaft that couples the rotor to the impeller. ### Claim 3 (depends on 2) The equipment of claim 2, wherein the motor includes a brushless direct current (BLDC) motor. ### Claim 4 (depends on 2) The equipment of claim 2, wherein a length of the motor case in a second direction is shorter than a length of a gap between the main body and the scroll housing. ### Claim 5 (depends on 1) The equipment of claim 1, wherein the blower further includes: a mounting portion that is located on a first surface of the scroll housing, wherein the suction hole is located on the first surface of the scroll housing, and wherein the driving unit is coupled to the mounting portion and is located outside the scroll housing. ### Claim 6 (depends on 1) The equipment of claim 1, wherein the driving unit is located at a first position and, in a state in which the driving unit is located at the first position, a space exists between the driving unit and a second surface of the scroll housing. ### Claim 7 (depends on 6) The equipment of claim 6, wherein, in the state in which the driving unit is located at the first position, air flows from the first intake port to the suction hole through a space between the driving unit and the scroll housing. ### Claim 8 (depends on 1) The equipment of claim 1, wherein the suction hole is oriented in a third direction and the first intake port is oriented in a fourth direction, and wherein the third direction is perpendicular to the fourth direction. ### Claim 9 (depends on 1) The equipment of claim 1, wherein the main body further includes: a second intake port that is located at a second portion of the main body and through which air flows from the exterior area of the main body into the interior area of the main body. ### Claim 10 (depends on 1) The equipment of claim 1, wherein the blower further includes: an outlet through which air flows from the interior area of the main body to the exterior area of the main body. ### Claim 11 A blower comprising: an impeller that is configured to rotate about a shaft, the shaft extending in a first direction and including an interior area of the impeller to which air flows through an opening of the impeller; a scroll housing that accommodates the impeller and that includes a suction hole of the scroll housing through which air flows from an exterior area of the scroll housing into the interior area of the impeller; a mounting portion that is located on a first surface of the scroll housing, wherein the suction hole is located on the first surface of the scroll housing; and a driving unit that is coupled to the mounting portion, that is located outside the scroll housing, and that is configured to rotate the impeller. ### Claim 12 (depends on 11) The blower of claim 11, wherein the scroll housing has a cylindrical shape and includes one or more openings. ### Claim 13 (depends on 12) The blower of claim 12, wherein the mounting portion includes: a plurality of support members that are arranged along a circumference of the scroll housing, each of the support members being spaced apart from adjacent support members at a particular distance, and wherein each of the support members extends from an outer circumferential surface of the scroll housing to a center of the suction hole. ### Claim 14 (depends on 13) The blower of claim 13, wherein the driving unit is coupled to the plurality of support members at a position closer to the center of the suction hole than the outer circumferential surface of the scroll housing. ### Claim 15 (depends on 14) The blower of claim 14, wherein the driving unit is installed spaced apart from the outer circumferential surface of the scroll housing so that a passage connecting the suction hole to outside of the blower is formed between the driving unit and the scroll housing. ### Claim 16 (depends on 11) The blower of claim 11, wherein the driving unit includes: a motor case, a motor that is coupled to the motor case and that includes a rotor and a stator, and a shaft that couples the rotor to the impeller. ### Claim 17 (depends on 16) The blower of claim 16, wherein the motor includes a BLDC motor. ### Claim 18 (depends on 17) The blower of claim 17, wherein a length of the motor case in a first direction is shorter than a length of a part of the shaft that protrudes from the motor case. ### Claim 19 (depends on 18) The blower of claim 18, wherein the motor case includes: a case body that accommodates the rotor and the stator, and a coupling part that couples the case body to the mounting portion. ### Claim 20 (depends on 19) The blower of claim 19, wherein the motor case has a flat hexagonal shape, wherein the case body has a flat cylindrical shape and is located at a center of the motor case, and wherein the coupling part is located at a peripheral area of the motor case and is coupled to an outer perimeter of the case body.