WO2021172209A1 - Dispositif de soufflante - Google Patents

Dispositif de soufflante Download PDF

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Publication number
WO2021172209A1
WO2021172209A1 PCT/JP2021/006379 JP2021006379W WO2021172209A1 WO 2021172209 A1 WO2021172209 A1 WO 2021172209A1 JP 2021006379 W JP2021006379 W JP 2021006379W WO 2021172209 A1 WO2021172209 A1 WO 2021172209A1
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WO
WIPO (PCT)
Prior art keywords
fan
suction port
air
guide portion
axial direction
Prior art date
Application number
PCT/JP2021/006379
Other languages
English (en)
Japanese (ja)
Inventor
文也 石井
修三 小田
昇一 今東
文庸 渡邉
Original Assignee
株式会社デンソー
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 株式会社デンソー filed Critical 株式会社デンソー
Priority to CN202180011018.XA priority Critical patent/CN115023554A/zh
Publication of WO2021172209A1 publication Critical patent/WO2021172209A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
    • F04D29/444—Bladed diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/44—Fluid-guiding means, e.g. diffusers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2250/00—Geometry
    • F05D2250/50—Inlet or outlet
    • F05D2250/51—Inlet

Definitions

  • This disclosure relates to a blower that allows air to flow.
  • the blower described in Patent Document 1 is a centrifugal blower, which is a multi-blade fan, a scroll casing forming a spiral air passage on the radial outer side of the multi-blade fan, and an arrangement on the upstream side with respect to an air intake port. It is provided with a plurality of suction port rib portions that support the filtered filter. The suction port rib portion is arranged at a position avoiding the nose portion of the scroll casing, and this arrangement reduces the rotational noise of the multi-blade fan.
  • Patent Document 1 In the blower of Patent Document 1, noise is reduced by arranging the suction port rib portion with reference to the nose portion of the scroll casing.
  • noise countermeasures for a blower having a fan case without a nose portion are not shown in Patent Document 1. That is, Patent Document 1 does not show noise countermeasures for a blower having a fan case configured so that air is blown from a centrifugal fan over the entire circumference of the fan. Therefore, in order to suppress the rotational noise of the fan in such a blower, it is necessary to devise a configuration different from the configuration shown in Patent Document 1. As a result of detailed examination by the inventors, the above was found.
  • the blower is a blower. It is a blower that allows air to flow, A turbofan that rotates around the fan axis and blows out the air sucked from one side of the fan axis in the axial direction to the outside in the radial direction of the fan axis. It has a suction part that is provided on one side of the turbofan in the axial direction and forms a suction port through which air passes toward the turbofan, accommodates the turbofan, and covers the entire circumference of the turbofan. With a fan case configured to blow air from It is equipped with a guide section provided on one side in the axial direction with respect to the turbofan.
  • the fan case is provided on the upstream side of the air flow with respect to the suction port, and is arranged so that air collects from the upstream passage having a larger passage cross-sectional area than the suction port to the suction port.
  • the guide portion reduces the unevenness in the flow rate distribution of the air passing through the suction port by causing unevenness in the distribution of the flow resistance of the air passing through the suction port as compared with the case where the guide portion is not provided. do.
  • the unevenness that occurs in the flow rate distribution of the air passing through the suction port is reduced as compared with the case where the distribution of the flow resistance of the air passing through the suction port is uniform, whereby the suction port is reduced.
  • the flow velocity unevenness is reduced by the flow velocity distribution of the air passing through. As a result, it is possible to suppress the rotational noise of the turbofan.
  • the blower is: It is a blower that allows air to flow, A turbofan that rotates around the fan axis and blows out the air sucked from one side of the fan axis in the axial direction to the outside in the radial direction of the fan axis. It has a suction part that is provided on one side of the turbofan in the axial direction and forms a suction port through which air passes toward the turbofan, accommodates the turbofan, and covers the entire circumference of the turbofan. With a fan case configured to blow air from It is equipped with a guide section provided on one side in the axial direction with respect to the turbofan.
  • the fan case is provided on the upstream side of the air flow with respect to the suction port, and is arranged so that air collects from the upstream passage having a larger passage cross-sectional area than the suction port to the suction port.
  • the guide portion is configured to guide more air toward the center side of the suction port as compared with the case where the guide portion is not provided.
  • the phenomenon that a large amount of air passing through the suction port flows unevenly toward the peripheral portion of the suction port among the suction ports is improved as compared with the case where the guide portion is not provided, and the suction port is opened.
  • the unevenness that occurs in the flow rate distribution of the passing air is reduced.
  • the flow velocity unevenness is reduced in the flow velocity distribution of the air passing through the suction port, so that it is possible to suppress the rotation noise of the turbofan.
  • FIG. 5 is a cross-sectional view schematically showing a vertical cross section of a blower device, which is a cross section including a fan axis in the first embodiment.
  • the first embodiment it is a view which shows the simple substance of the guide part in the directional view shown by the arrow II of FIG.
  • FIG. 1 It is a figure which compared the BPF primary sound generated from the blower of 1st Embodiment, and the BPF primary sound generated from the blower of a comparative example.
  • the second embodiment it is a cross-sectional view schematically showing a vertical cross section of a blower, and is a view corresponding to FIG. 1.
  • the second embodiment it is a view which shows a single guide part in the direction view shown by the arrow VII of FIG. 6, and is the figure corresponding to FIG.
  • the third embodiment it is a cross-sectional view schematically showing a vertical cross section of a blower, and is a view corresponding to FIG. 1.
  • FIG. 4 is a partial cross-sectional view showing a portion corresponding to the XII portion of FIG. 8 in the fourth embodiment.
  • the fourth embodiment it is a view which shows the guide part and the suction port in the directional view shown by the arrow XIII of FIG. 12, and is the figure corresponding to FIG.
  • the fifth embodiment it is a partial cross-sectional view showing the portion corresponding to the XII portion of FIG. 8, and is the figure corresponding to FIG.
  • the fifth embodiment is a view which shows the guide part and the suction port in the directional view indicated by the arrow XV of FIG. 14, and is the figure corresponding to FIG. It is a view which showed the guide part and the suction port in 6th Embodiment, and is the figure which corresponds to FIG.
  • the blower device 10 shown in FIG. 1 is provided, for example, in a vehicle interior air-conditioning unit that air-conditions the vehicle interior, and circulates air in the vehicle interior air-conditioning unit.
  • the blower device 10 is a centrifugal blower.
  • the blower device 10 includes a turbo fan 12, which is a centrifugal fan, a fan motor 14, a fan case 16, and a guide portion 18.
  • the turbofan 12 is a fan that rotates around the fan axis Cf.
  • the turbofan 12 has a plurality of blades arranged side by side at intervals around the fan axis Cf. As the turbofan 12 rotates, the turbofan 12 sucks air from one side of the axial direction Da of the fan axis Cf, and the sucked air of the fan axis Cf is indicated by an arrow Fr. It blows out to the outside of the radial Dr.
  • a fan motor 14 supported by a fan case 16 is connected to the turbofan 12, and the turbofan 12 is rotated around the fan axis Cf by the fan motor 14.
  • the axial direction Da of the fan axial center Cf is also referred to as the fan axial direction Da
  • the radial direction Dr of the fan axial center Cf is also referred to as the fan radial direction Dr.
  • the fan case 16 is made of resin, for example, and the turbofan 12 is housed in the fan case 16.
  • the fan case 16 has a side wall portion 161 on one side, a side wall portion 164 on the other side, and a peripheral wall portion 165.
  • the side wall portion 161, the other side wall portion 164, and the peripheral wall portion 165 are each configured as, for example, a plate-shaped wall.
  • the one side wall portion 161 of the fan case 16 is arranged on one side of the fan axial direction Da with respect to the turbofan 12, and is formed so as to expand in the fan radial direction Dr.
  • the one side wall portion 161 is formed with a suction port 162a through which air passes from one side of the fan axial direction Da with respect to the one side wall portion 161 toward the turbofan 12. That is, the suction port 162a is provided on one side of the fan axial direction Da with respect to the turbofan 12.
  • the side wall portion 161 has a suction portion 162 forming a suction port 162a.
  • the suction port 162a is arranged so as to be concentric with the turbofan 12.
  • the suction port 162a is formed as a circular opening hole formed around the fan axis Cf.
  • the suction portion 162 has an annular suction inner wall surface 162b facing the suction port 162a.
  • the suction portion 162 is configured as a bell mouth portion, and air is smoothly flowed into the suction port 162a from one side of the fan axial direction Da with respect to the suction portion 162. Therefore, the suction inner wall surface 162b is provided as a bell mouth surface, and extends from the other side to one side in the fan axial direction Da while bending outward in the fan radial direction Dr. Then, the suction inner wall surface 162b is smoothly formed on the surface of the one side wall portion 161 facing one side of the fan axial direction Da (that is, the one side surface of the one side wall portion 161) at one end of the fan axial direction Da. You are connected.
  • the fan case 16 is connected to the fan case 16 by an upstream passage portion 20 provided on one side of the fan axial direction Da.
  • the upstream passage portion 20 and the fan case 16 are integrally configured, and form, for example, a part of a housing forming the outer shell of the vehicle interior air conditioning unit.
  • the housing including the upstream passage portion 20 and the fan case 16 is made into one component by connecting and fixing a plurality of resin members to each other.
  • the first resin member having the upstream passage portion 20, the second resin member having one side wall portion 161 and the peripheral wall portion 165, and the third resin member having the other side wall portion 164 are connected and fixed to each other. Has been done.
  • an upstream passage 20a provided on the upstream side of the air flow with respect to the suction port 162a is formed inside the upstream passage portion 20, an upstream passage 20a provided on the upstream side of the air flow with respect to the suction port 162a is formed inside the upstream passage portion 20, an upstream passage 20a provided on the upstream side of the air flow with respect to the suction port 162a is formed inside the upstream passage portion 20, an upstream passage 20a provided on the upstream side of the air flow with respect to the suction port 162a is formed inside the upstream passage portion 20, an upstream passage 20a provided on the upstream side of the air flow with respect to the suction port 162a is formed inside the upstream passage portion 20, an upstream passage 20a provided on the upstream side of the air flow with respect to the suction port 162a is formed inside the upstream passage portion 20, an upstream passage 20a provided on the upstream side of the air flow with respect to the suction port 162a is formed inside the upstream passage portion 20, an upstream passage 20a provided on the
  • the passage cross section which is the cross section of the upstream passage 20a, has a rectangular shape, for example, and is larger than the suction port 162a.
  • the upstream passage 20a is formed as a passage having a larger passage cross-sectional area than the suction port 162a. Therefore, it can be said that the fan case 16 is arranged so that air collects from the upstream passage 20a to the suction port 162a.
  • the passage cross-sectional area of the upstream passage 20a is the cross-sectional area of the upstream passage 20a in the cross section
  • the passage cross-sectional area of the suction port 162a is the cross-sectional area of the suction port 162a in the cross section. ..
  • the cross section of the upstream passage 20a and the cross section of the suction port 162a are, for example, a cross section obtained by cutting in a plane perpendicular to the fan axis Cf in FIG.
  • the one side wall portion 161 of the fan case 16 has a wind guide wall surface 161a included in one side surface of the one side wall portion 161 thereof, and the wind guide wall surface 161a is from the suction portion 162 to the fan radial direction Dr. It extends outward and faces the downstream end of the upstream passage 20a. Then, the wind guide wall surface 161a guides the air in the upstream passage 20a to collect the air in the suction port 162a.
  • the evaporator 21 as an upstream device is arranged in the upstream passage 20a.
  • the evaporator 21 is held by, for example, an upstream passage portion 20.
  • the evaporator 21 is a heat exchanger that cools the air by exchanging heat between the air flowing through the upstream passage 20a and the refrigerant in the evaporator 21.
  • the evaporator 21 has a core portion 211 composed of a plurality of tubes and a plurality of fins, and a pair of tank portions 212 and 213 connected to both ends of the core portion 211.
  • the evaporator 21 is arranged so as to cover the entire passage cross section of the upstream passage 20a, substantially the entire amount of air flowing from the upstream side to the downstream side with respect to the evaporator 21 in the upstream passage 20a passes through the evaporator 21. do. Then, since the air passing through the evaporator 21 passes exclusively through the core portion 211 instead of the tank portion 212 and 213, the core portion 211 is included in the upstream passage 20a and functions as an air passage portion through which the air passes. do.
  • the core portion 211 of the evaporator 21 is a portion that exchanges heat between the refrigerant in the tube and air, but also has a function of rectifying the air passing through the core portion 211.
  • the air outflow surface 211a on the downstream side of the air flow included in the core portion 211 faces the other side in the fan axial direction Da and faces the suction port 162a.
  • the core portion 211 of the evaporator 21 has an outer shape that extends outward from the suction port 162a in the radial direction of the fan. Therefore, it was described above that the air guide wall surface 161a of the fan case 16 collects the air in the upstream passage 20a to the suction port 162a, but more specifically, the air guide wall surface 161a passes through the core portion 211 of the evaporator 21. The air is guided to collect at the suction port 162a.
  • the other side wall portion 164 of the fan case 16 is arranged on the other side opposite to one side of the fan axial direction Da with respect to the turbofan 12, and is formed so as to expand in the fan radial direction Dr.
  • a non-rotating portion such as a stator of the fan motor 14 is fixed to the other side wall portion 164 of the fan case 16.
  • the peripheral wall portion 165 of the fan case 16 is formed so as to surround the outer circumference of the turbofan 12 over the entire circumference around the fan axis Cf.
  • the peripheral wall portion 165 is arranged apart from the turbofan 12 in the fan radial direction Dr so that a space through which air flows is sufficiently secured around the entire circumference of the turbofan 12.
  • the space formed between the turbofan 12 and the peripheral wall portion 165 is a fan peripheral space 16a through which the air blown from the turbofan 12 flows.
  • the fan peripheral space 16a is a space formed between one side wall portion 161 and the other side wall portion 164 in the fan axial direction Da.
  • the fan peripheral space 16a is formed in an annular shape so as to surround the turbofan 12 over its entire circumference. Since such a fan peripheral space 16a is formed, the fan case 16 is configured so that air is blown out from the turbofan 12 over the entire circumference of the turbofan 12.
  • the fan case 16 of the present embodiment does not have a nose portion like a scroll casing for a sirocco fan, and the fan peripheral space 16a is not a spiral passage.
  • the fan case 16 is not configured to swirl the air blown out into the fan peripheral space 16a to one side in the circumferential direction around the fan axis Cf. Therefore, air is evenly blown from the turbofan 12 with respect to the fan surrounding space 16a as shown by the arrow Fr over the entire circumference of the turbofan 12.
  • the fan peripheral space 16a is connected to the fan downstream passage 16b outside the fan radial direction Dr of the other side wall portion 164, and the fan downstream passage 16b is connected to the other side of the fan axial direction Da from the other side wall portion 164. It extends.
  • the fan downstream passage 16b may be formed in an annular shape over the entire circumference around the fan axis Cf, or may be partially formed around the entire circumference around the fan axis Cf.
  • the air blown from the turbofan 12 to the fan peripheral space 16a flows from the fan peripheral space 16a to the fan downstream passage 16b while being guided by the peripheral wall portion 165. That is, the air blown out into the fan peripheral space 16a flows from the fan peripheral space 16a through the fan downstream passage 16b to the other side of the fan axial direction Da from the turbofan 12 as indicated by the arrow Fa.
  • the guide portion 18 is fixed to the fan case 16 and is provided on one side of the fan axial direction Da with respect to the turbofan 12.
  • the guide portion 18 is configured as a tubular guide wall that guides the air sucked into the turbofan 12.
  • the guide unit 18 functions as a rectifying member that rectifies the air passing through the suction port 162a.
  • the guide portion 18 partitions the flow of air sucked into the turbofan 12 into the fan radial direction Dr, the air sucked into the turbofan 12 both inside and outside the fan radial direction Dr with respect to the guide portion 18. Flows. Further, the guide portion 18 is configured to guide more air to the center side of the suction port 162a as compared with the case where the guide portion 18 is not provided.
  • the guide portion 18 is formed in an annular shape in a directional view along the fan axial direction Da.
  • the guide portion 18 has one end 181 provided on one side of the fan axial direction Da and the other end 182 provided on the other side opposite to one side of the fan axial direction Da.
  • the guide portion 18 has a shape in which one end 181 is wider than the other end 182 to the outside in the fan radial direction Dr. Then, the guide portion 18 extends from the other side to one side in the fan axial direction Da while bending outward in the fan radial direction Dr.
  • one end 181 and the other end 182 of the guide portion 18 both have a circular edge shape, and the guide portion 18 has an outer shape of the other end 182 at one end 181 in a directional view along the fan axial direction Da. It is formed so as to go inside. Comparing the inner diameters of one end 181 and the other end 182, the diameter DG1 of one end 181 is larger than the diameter DG2 of the other end 182. In short, the diameters DG1 and DG2 of both have a relationship of "DG1> DG2". Comparing the outer diameters of one end 181 and the other end 182, the diameter of one end 181 is also larger than the diameter of the other end 182. Further, in the present embodiment, since the end surface of one end 181 of the guide portion 18 faces outward in the fan radial direction Dr, the outer diameter and the inner diameter of the one end 181 are the same size.
  • the central position Cp of the passage downstream portion 20b which is a portion of the upstream passage 20a on the downstream side of the air flow, is the passage eccentric direction which is one direction of the fan radial direction Dr with respect to the fan axis Cf. It is shifted to one side in D1. Specifically, in the directional view along the fan axial direction Da, the central position Cp of the passage downstream portion 20b is deviated to one side in the passage eccentric direction D1 with respect to the fan axial center Cf. Specifically, the passage downstream portion 20b is a portion of the upstream passage 20a where the wind guide wall surface 161a of the fan case 16 faces and the evaporator 21 is arranged.
  • the center position of the core portion 211 of the evaporator 21 coincides with the center position Cp of the passage downstream portion 20b in the directional view along the fan axial direction Da. Therefore, in the directional view along the fan axial direction Da, the center position of the core portion 211 is also shifted to one side in the passage eccentric direction D1 with respect to the fan axial center Cf.
  • the central position Cp of the passage downstream portion 20b is, in other words, the position of the center of gravity of the passage downstream portion 20b when the passage downstream portion 20b is assumed to be a uniform space.
  • the center position of the core portion 211 is, in other words, the position of the center of gravity of the core portion 211 when the core portion 211 is assumed to be a uniform space.
  • the center position of the core portion 211 is also the center position of the air outflow surface 211a of the core portion 211 in the directional view along the fan axial direction Da.
  • the center position Cp of the passage downstream portion 20b and the center position of the core portion 211 are deviated to one side of the passage eccentric direction D1 with respect to the fan axis Cf. Therefore, one end 181 of the guide portion 18 is also arranged accordingly. That is, in the directional view along the fan axial direction Da, the center position C1g of one end 181 of the guide portion 18 is also shifted to one side of the passage eccentric direction D1 with respect to the fan axial center Cf.
  • the other end 182 of the guide portion 18 is formed around the fan axis Cf.
  • the center position of the other end 182 coincides with the fan axial center Cf.
  • the guide portion 18 is arranged so as to straddle the suction port 162a and the passage downstream portion 20b of the upstream passage 20a. Therefore, one end 181 of the guide portion 18 is arranged on one side of the fan axial direction Da with respect to the air guide wall surface 161a of the fan case 16, and the other end 182 of the guide portion 18 is one of the suction ports 162a in the fan axial direction Da. It is located on the other side of the side edge.
  • the other end 182 is arranged so as to be separated from the suction inner wall surface 162b inward in the fan radial direction Dr over the entire circumference around the fan axis Cf.
  • the guide portion 18 is arranged away from the air outflow surface 211a of the evaporator 21. That is, an axial gap vacated in the fan axial direction Da is formed between one end 181 of the guide portion 18 and the air outflow surface 211a.
  • the distance CLb between one end 181 of the guide portion 18 in the fan axial direction Da and the air guide wall surface 161a of the fan case 16 is the distance CLa between one end 181 of the guide portion 18 and the evaporator 21 in the fan axial direction Da. Is also big.
  • BPF is an abbreviation for Blade Passing Frequency.
  • the blower 10 of the present embodiment includes a guide portion 18, and the guide portion 18 guides more air to the center side of the suction port 162a as compared with the case where the guide portion 18 is not provided. It is configured as follows.
  • the guide portion 18 is configured to guide more air toward the center side of the suction port 162a in comparison with the blower device of the comparative example. Therefore, as compared with the blower of the comparative example, a large amount of air passing through the suction port 162a flows unevenly toward the peripheral portion of the suction port 162a (specifically, in the vicinity of the suction inner wall surface 162b). The phenomenon is improved.
  • the unevenness that occurs in the flow rate distribution of the air passing through the suction port 162a is reduced.
  • the fan radial direction Dr approaches a uniform flow rate distribution, and the flow rate unevenness that occurs in the fan radial direction Dr in the flow rate distribution is reduced.
  • the flow velocity unevenness that occurs in the fan radial direction Dr in the flow velocity distribution of the air passing through the suction port 162a is reduced.
  • the flow velocity unevenness generated in the flow velocity distribution of the air is reduced even in the vicinity of the blade leading edge of the turbofan 12, and the rotation noise of the turbofan 12 can be suppressed.
  • FIG. 3 shows a test result comparing the suction average flow velocities of the blower device 10 of the present embodiment and the blower device of the comparative example under predetermined ventilation conditions.
  • the average suction flow velocity is calculated as an average value of the air flow velocity obtained on the radius Ri of the suction port 162a at the downstream end of the suction port 162a.
  • the angle of the horizontal axis in FIG. 3 is the same as 0 °, 90 °, 180 °, and 270 ° shown in FIGS. 2 and 4, indicating the circumferential position centered on the fan axis Cf.
  • the flow rate means a mass flow rate unless otherwise specified.
  • the distribution of the average suction flow velocity in the present embodiment is shown by the broken line L1
  • the distribution of the average suction flow velocity in the comparative example is shown by the solid line Lx.
  • the difference between the maximum value and the minimum value in the distribution of the suction average flow velocity is the flow velocity difference V1 in the present embodiment and the flow velocity difference Vx in the comparative example. Since the flow velocity differences V1 and Vx between the two are in a relationship of “V1 ⁇ Vx”, from the test results of FIG. 3, in this embodiment, unevenness occurs in the flow velocity distribution of the air passing through the suction port 162a as compared with the comparative example. Can be seen to be reduced.
  • the BPF primary sound shown on the vertical axis of FIG. 5 is the sound pressure of a certain frequency component constituting the rotation noise of the turbo fan 12, and specifically, the rotation speed of the turbo fan 12 and the number of blades. It is the sound pressure of the primary frequency component based on the value obtained by multiplying by.
  • the guide portion 18 is formed in an annular shape in a directional view along the fan axial direction Da.
  • the guide portion 18 has one end 181 provided on one side of the fan axial direction Da and the other end 182 provided on the other side of the fan axial direction Da, and the guide portion 18 has one end 181 at the other end. It has a shape that extends outward in the radial direction of the fan as compared with the end 182. Therefore, it is possible to configure the guide portion 18 so as to guide more air to the center side of the suction port 162a as compared with the case where the guide portion 18 is not provided, with the guide portion 18 having a simple configuration. Is.
  • the guide portion 18 extends from the other side to one side in the fan axial direction Da while bending outward in the fan radial direction Dr. Therefore, it is possible to guide the air flow sucked into the suction port 162a by the guide portion 18 while preventing the air flow traveling along the guide portion 18 from peeling off from the surface of the guide portion 18 in the vicinity of the guide portion 18. Is.
  • the suction port 162a is formed around the fan axis Cf. Then, in the directional view along the fan axial direction Da, the central position Cp of the passage downstream portion 20b of the upstream passage 20a is one direction of the fan radial direction Dr with respect to the fan axial center Cf. It is deviated to one side in the passage eccentric direction D1. Therefore, more air flows from one side toward the suction port 162a than from the other side in the passage eccentric direction D1.
  • the blower device 10 of the present embodiment includes a guide portion 18. Then, in accordance with the deviation of the center position Cp of the passage downstream portion 20b with respect to the fan axis Cf, the center position C1g of one end 181 of the guide portion 18 is also relative to the fan axis Cf in a directional view along the fan axis direction Da. It is deviated to one side of the passage eccentric direction D1.
  • an evaporator 21 as an upstream device is arranged in the upstream passage 20a.
  • the guide portion 18 is arranged away from the evaporator 21. Therefore, it is possible to prevent the guide portion 18 from coming into contact with the evaporator 21, for example, when vibration is applied to the blower device 10 due to the vibration of the vehicle. As a result, damage to the evaporator 21 or the guide portion 18 due to contact between the guide portion 18 and the evaporator 21 can be prevented.
  • the guide portion 18 is cooled by cooling the evaporator 21. It is possible to prevent the situation of freezing.
  • the distance CLb between one end 181 of the guide portion 18 in the fan axial direction Da and the air guide wall surface 161a of the fan case 16 is set between the one end 181 of the guide portion 18 and the evaporator 21 in the fan axial direction Da.
  • the passage downstream portion 20b included in the upstream passage 20a is provided centering on the fan axis Cf. That is, the center position Cp (see FIG. 1) of the passage downstream portion 20b of the upstream passage 20a coincides with the fan axis Cf. The center position of the core portion 211 of the evaporator 21 also coincides with the fan axis Cf.
  • one end 181 of the guide portion 18 is formed around the fan axis Cf. That is, the center position C1g (see FIG. 1) of one end 181 of the guide portion 18 also coincides with the fan axis Cf. Although it is the same as the first embodiment, the other end 182 of the guide portion 18 is also formed around the fan axis Cf.
  • the effect of the guide portion 18 that guides more air to the center side of the suction port 162a can be obtained evenly over the entire circumference around the fan axis Cf as compared with the case where the guide portion 18 is not provided.
  • this embodiment is the same as the first embodiment. Then, in the present embodiment, the effect produced from the configuration common to the above-mentioned first embodiment can be obtained in the same manner as in the first embodiment.
  • the blower 10 of the present embodiment includes a guide unit 22 instead of the guide unit 18 of the first embodiment.
  • the guide portion 22 functions as a rectifying member that rectifies the air passing through the suction port 162a. Then, the guide portion 22 exerts a function of reducing unevenness generated in the flow rate distribution of the air passing through the suction port 162a as compared with the case where the guide portion 22 is not provided.
  • the guide unit 22 of the present embodiment is similar to the guide unit 18 of the first embodiment, but is different from the guide unit 18 of the first embodiment in its mechanical structure.
  • the guide portion 22 of the present embodiment is fixed to the suction portion 162 of the fan case 16, for example.
  • the guide portion 22 of the present embodiment is similar to the guide portion 18 of the first embodiment in that it is provided on one side of the fan axial direction Da with respect to the turbofan 12, but the entire guide portion 22 is sucked. It is arranged in the suction port 162a so as to fit in the mouth 162a.
  • the guide portion 22 is composed of a plurality of partition ribs 221 provided as partition portions.
  • the plurality of partition ribs 221 are configured as partition walls having side surfaces along the fan axial direction Da. That is, each of the plurality of partition ribs 221 is arranged in the suction port 162a with the direction perpendicular to the fan axial direction Da as the thickness direction.
  • the plurality of partition ribs 221 partition the suction port 162a in the direction perpendicular to the fan axial direction Da, thereby dividing the suction port 162a into the plurality of divided flow paths 162c.
  • the plurality of divided flow paths 162c are arranged in a direction perpendicular to the fan axial direction Da with a partition rib 221 interposed between them.
  • the flow resistance of the suction port 162a represents difficulty in passing air through the suction port 162a, and the greater the flow resistance, the more difficult it is for air to pass through the suction port 162a.
  • the plurality of partition ribs 221 of the guide portion 22 extend radially in the direction along the fan axial direction Da.
  • the divided flow path 162c arranged on one side of the passage eccentric direction D1 is the cross section of the divided flow path 162c perpendicular to the fan axial direction Da (another word). If so, the flow path cross section) is formed to be small. That is, the plurality of partition ribs 221 finely partition the suction port 162a on one side of the passage eccentric direction D1 with respect to the fan axis Cf among the suction ports 162a as compared with the other side opposite to the one side. In other words, the plurality of partition ribs 221 are arranged more densely on one side of the suction port 162a in the passage eccentric direction D1 with respect to the fan axis Cf than on the other side.
  • the flow resistance of the suction port 162a is larger on one side of the passage eccentric direction D1 with respect to the fan axis Cf than on the other side of the suction ports 162a.
  • This is a phenomenon that more air flows from one side toward the suction port 162a than the other side in the passage eccentric direction D1 due to the deviation of the center position Cp of the passage downstream portion 20b with respect to the fan axis Cf. It is a measure against. That is, the difference in the flow resistance in the suction port 162a is that the air passing through the suction port 162a is biased to one side of the suction port 162a in the passage eccentric direction D1 as compared with the case where the guide portion 22 is not provided. It works to correct the phenomenon of flowing a lot.
  • the guide portion 22 of the present embodiment intentionally causes unevenness in the distribution of the flow resistance of the suction port 162a as compared with the case where the guide portion 22 is not provided, so that the air passing through the suction port 162a Reduce unevenness in the flow rate distribution.
  • the unevenness that occurs in the flow rate distribution of the air passing through the suction port 162a is reduced as compared with the case where the distribution of the flow resistance of the air passing through the suction port 162a is uniform, for example. NS.
  • the flow velocity unevenness is reduced in the flow velocity distribution of the air passing through the suction port 162a.
  • the guide portion 22 has a plurality of partition ribs 221 provided as partition portions, and the plurality of partition ribs 221 have a suction port 162a in a direction perpendicular to the fan axial direction Da. Partition. Then, the finer the partition rib 221 divides the suction port 162a, the greater the flow resistance of the suction port 162a. Therefore, it is possible to make the distribution of the flow resistance of the suction port 162a uneven so as to reduce the unevenness caused in the flow rate distribution of the air passing through the suction port 162a with the guide unit 22 having a simple configuration. be.
  • the plurality of partition ribs 221 finely partition the suction port 162a on one side of the passage eccentric direction D1 with respect to the fan axis Cf among the suction ports 162a as compared with the other side. Therefore, as compared with the case where the guide portion 22 is not provided, the phenomenon that the air passing through the suction port 162a flows more toward one side of the passage eccentric direction D1 among the suction ports 162a is improved, and the suction port 162a is improved. The unevenness that occurs in the flow rate distribution of the air passing through is reduced. As a result, the flow velocity unevenness in the passage eccentric direction D1 is reduced by the flow velocity distribution of the air passing through the suction port 162a, so that the rotation noise of the turbofan 12 can be suppressed.
  • this embodiment is the same as the first embodiment. Then, in the present embodiment, the effect obtained from the configuration common to the above-mentioned first embodiment can be obtained in the same manner as in the first embodiment.
  • the plurality of partition ribs 221 constituting the guide portion 22 are provided so as to cover the entire suction port 162a in the directional view along the fan axial direction Da. Not done.
  • the plurality of partition ribs 221 of the present embodiment are arranged unevenly in the deviation direction side of the center position Cp (see FIG. 8) of the passage downstream portion 20b with respect to the fan axis Cf in the suction port 162a. In other words, the plurality of partition ribs 221 are partially arranged on one side of the suction port 162a in the passage eccentric direction D1.
  • the flow resistance of the suction port 162a is larger on one side of the passage eccentric direction D1 with respect to the fan axis Cf than on the other side of the suction port 162a. ..
  • the difference between the flow resistance on one side of the passage eccentric direction D1 with respect to the fan axis Cf and the flow resistance on the other side of the suction port 162a is larger than that in the third embodiment.
  • the portion where the pressure loss of the air passing through the suction port 162a is increased by the partition rib 221 is partially limited in the suction port 162a. Therefore, as compared with the third embodiment in which the plurality of partition ribs 221 are arranged so as to cover the entire suction port 162a, in the present embodiment, the suction port 162a as a whole passes through the suction port 162a. Air pressure loss can be reduced.
  • this embodiment is the same as the third embodiment. Then, in the present embodiment, the effect obtained from the configuration common to the above-mentioned third embodiment can be obtained in the same manner as in the third embodiment.
  • the passage downstream portion 20b included in the upstream passage 20a is provided around the fan axis Cf. That is, the center position Cp (see FIG. 1) of the passage downstream portion 20b of the upstream passage 20a coincides with the fan axis Cf. The center position of the core portion 211 of the evaporator 21 also coincides with the fan axis Cf.
  • the plurality of partition ribs 221 constituting the guide portion 22 have the suction port 162a over the entire circumference around the fan axis Cf in the circumferential direction Dc of the fan axis Cf (that is, the fan). It is provided so as to partition evenly in the circumferential direction Dc). That is, in the directional view along the fan axial direction Da, the plurality of partition ribs 221 are not arranged in any direction with respect to the fan axial center Cf.
  • the guide portion 22 has an annular partition rib 222 as one of the plurality of partition ribs 221 provided at the suction port 162a.
  • the annular partition rib 222 extends in an annular shape about the fan axis Cf.
  • Divided flow paths 162c are formed both inside and outside the fan radial direction Dr with respect to the annular partition rib 222.
  • the dividing flow path 162c formed outside the fan radial direction Dr with respect to the annular partition rib 222 is provided as an outer dividing flow path 162d, and the dividing flow flow formed inside the fan radial direction Dr with respect to the annular partition rib 222.
  • the road 162c is provided as an inner divided flow path 162e.
  • a plurality of these outer split flow paths 162d are formed, and all of them have the same size and are arranged side by side in the fan circumferential direction Dc.
  • the plurality of partition ribs 221 finely partition the suction port 162a of the suction ports 162a on the outside of the fan radial direction Dr with respect to the annular partition rib 222 as compared with the inside.
  • the plurality of partition ribs 221 are provided so as to finely partition the suction port 162a toward the outside of the fan radial direction Dr among the suction ports 162a.
  • the plurality of partition ribs 221 are arranged closer to the outside of the suction port 162a in the fan radial direction Dr.
  • the area of the flow path cross section of the outer divided flow path 162d is the inner divided flow path 162e. It is smaller than the area of the cross section of the flow path.
  • the air is less likely to flow toward the outside of the fan radial direction Dr, and accordingly, the air flowing into the suction port 162a is likely to be guided to the inside of the fan radial direction Dr in the suction port 162a.
  • the phenomenon that a large amount of air passing through the suction port 162a flows in the vicinity of the suction inner wall surface 162b of the suction port 162a is improved, and the suction port 162a is opened. The unevenness that occurs in the flow rate distribution of the passing air is reduced.
  • the flow rate unevenness that occurs in the fan radial direction Dr is reduced.
  • the flow velocity unevenness that occurs in the fan radial direction Dr in the flow velocity distribution of the air passing through the suction port 162a is reduced, so that the rotation noise of the turbofan 12 can be suppressed.
  • this embodiment is the same as the third embodiment. Then, in the present embodiment, the effect obtained from the configuration common to the above-mentioned third embodiment can be obtained in the same manner as in the third embodiment.
  • the plurality of partition ribs 221 are provided so as to finely partition the suction port 162a toward the outside of the fan radial direction Dr among the suction ports 162a.
  • the present embodiment is similar to the fifth embodiment.
  • the partition rib 221 is not provided inside the fan radial direction Dr with respect to the annular partition rib 222 in the present embodiment. Therefore, the inner split flow path 162e of the present embodiment is formed as a single air flow path having a circular cross section centered on the fan axis Cf.
  • the outer split flow path 162d of the present embodiment is the same as the outer split flow path 162d of the fifth embodiment.
  • the pressure loss of the air passing through the inside of the suction port 162a in the fan radial direction with respect to the annular partition rib 222 is lost. Can be reduced. This leads to a reduction in pressure loss of air passing through the suction port 162a in the entire suction port 162a.
  • this embodiment is the same as the fifth embodiment. Then, in the present embodiment, the effect produced from the configuration common to the above-mentioned fifth embodiment can be obtained in the same manner as in the fifth embodiment.
  • the upstream device arranged in the upstream passage 20a is the evaporator 21, which is an example.
  • the upstream device may be a filter that filters air. It is also conceivable that no upstream equipment is arranged in the upstream passage 20a.
  • the plurality of partition ribs 221 partition the suction port 162a in the direction perpendicular to the fan axial direction Da, which is an example. ..
  • the plurality of partition ribs 221 may partition the suction port 162a in a direction substantially perpendicular to the fan axial direction Da but slightly inclined with respect to the fan axial direction Da.
  • the plurality of partition ribs 221 may partition the suction port 162a in a direction intersecting the fan axial direction Da.
  • the plurality of partition ribs 221 of the guide portion 22 extend radially in the direction along the fan axial direction Da, but the partition ribs 221 extend radially.
  • the plurality of partition ribs 221 may be formed in a grid pattern or a honeycomb shape, and may not extend to the center of the suction port 162a.
  • the plurality of partition ribs 221 are provided as partition portions, the partition portions do not have to be rib-shaped, and for example, the partition portions may be mesh-shaped.
  • the plurality of partition ribs 221 have a plate shape having a constant thickness, but the thickness of the partition ribs 221 does not have to be constant. ..
  • the thickness of the plurality of partition ribs 221 may be different from each other, or the thickness may be non-uniform within one partition rib 221.
  • the guide portion 22 is composed of a plurality of partition ribs 221.
  • the number of the partition ribs 221 is not limited, and the guide portion 22 is, for example, the guide portion 22. It may be composed of one partition rib 221.
  • annular partition rib 221 corresponding to the annular partition rib 222 of FIG. 15 is provided in the suction port 162a.
  • annular partition rib 221 may be provided in addition to the plurality of radially extending partition ribs 221. Then, by providing one or more such annular partition ribs 221, for example, the plurality of partition ribs 221 including the annular partition ribs 221 are sucked toward the outside of the suction port 162a in the fan radial direction.
  • the mouth 162a may be finely divided.
  • the magnitude of the flow resistance of the suction port 162a is set according to the density of the arrangement of the partition ribs 221.
  • the guide portion 22 is made of a porous body having a continuous cell structure such as a sponge, and the magnitude of the flow resistance of the suction port 162a may be set according to the density of the open cells of the porous body. ..
  • both one end 181 and the other end 182 of the guide portion 18 have a circular edge shape. This is just an example.
  • one or both of one end 181 and the other end 182 may have a rectangular edge shape.
  • the blower device 10 is used for the vehicle interior air-conditioning unit, but it may be used for other purposes.
  • the blower is a guide provided on one side of the turbofan in the fan axial direction (ie, in the axial direction of the fan axis). It has a part. Then, the guide portion causes unevenness in the distribution of the flow resistance of the air passing through the suction port as compared with the case where the guide portion is not provided, so that the unevenness occurs in the flow rate distribution of the air passing through the suction port. To reduce.
  • the guide portion has a partition portion for partitioning the suction port in a direction intersecting the fan axis direction, and the flow resistance of the suction port increases as the partition portion finely partitions the suction port. .. Therefore, it is possible to cause unevenness in the distribution of the flow resistance of the suction port so as to reduce unevenness in the flow rate distribution of the air passing through the suction port with a guide portion having a simple structure.
  • the suction port is formed around the fan axis, and the center position of the portion on the downstream side of the air flow in the upstream passage is in the fan radial direction (that is, with respect to the fan axis) with respect to the fan axis.
  • the radial direction of the fan axis) is shifted to one side in one direction.
  • the partition portion finely partitions the suction port on one side of the suction port in one direction with respect to the fan axis as compared with the other side on the opposite side to the one side.
  • the phenomenon that a large amount of air passing through the suction port flows unevenly in one side of the above-mentioned one direction is improved, and the air passing through the suction port is improved.
  • the unevenness that occurs in the flow rate distribution is reduced.
  • the flow velocity unevenness in one direction is reduced by the flow velocity distribution of the air passing through the suction port, so that it is possible to suppress the rotational noise of the turbofan.
  • the suction port is formed around the fan axis, and the portion on the downstream side of the air flow in the upstream passage is provided around the fan axis.
  • the partition portion is provided so as to evenly partition the suction port in the circumferential direction of the fan axis over the entire circumference of the fan axis.
  • the partition portion is provided so as to finely partition the suction port toward the outer side of the suction port in the fan radial direction. Therefore, it becomes difficult for air to flow in the suction port toward the outside in the fan radial direction, and accordingly, the air flowing into the suction port is likely to be guided inward in the fan radial direction in the suction port. That is, as compared with the case where the guide portion is not provided, the phenomenon that a large amount of air passing through the suction port flows unevenly toward the peripheral portion of the suction port among the suction ports is improved, and the air passing through the suction port is improved. The unevenness that occurs in the flow rate distribution is reduced. As a result, the flow velocity unevenness is reduced in the flow velocity distribution of the air passing through the suction port, so that it is possible to suppress the rotation noise of the turbofan.
  • the blower device includes a guide portion provided on one side in the fan axis direction with respect to the turbofan.
  • the guide portion is configured to guide more air to the center side of the suction port as compared with the case where the guide portion is not provided.
  • the guide portion is formed in an annular shape in a directional view along the fan axial direction, and one end provided on one side in the fan axial direction is opposite to the one end in the fan axial direction. It has an other end provided on the other side of the side.
  • the guide portion has a shape in which one end extends outward in the fan radial direction as compared with the other end. Therefore, it is possible to realize a guide portion having a simple structure so as to guide more air to the center side of the suction port as compared with the case where the guide portion is not provided.
  • the guide portion extends from the other side in the fan axial direction to one side while bending outward in the fan radial direction. Therefore, it is possible to guide the air flow sucked into the suction port by the guide portion while preventing the air flow traveling along the guide portion from being separated from the surface of the guide portion in the vicinity of the guide portion.
  • the suction port is formed around the fan axis, and the center position of the portion on the downstream side of the air flow in the upstream passage is in the fan radial direction with respect to the fan axis. It is offset to one side in one direction.
  • the center position of one end of the guide portion is also deviated to one side in the above unidirectional direction with respect to the fan axis. Therefore, as compared with the case where the guide portion is not provided, the phenomenon that a large amount of air passing through the suction port flows unevenly in one side of the above-mentioned one direction is improved, and the air passing through the suction port is improved.
  • the unevenness that occurs in the flow rate distribution is reduced.
  • the flow velocity unevenness in one direction is reduced by the flow velocity distribution of the air passing through the suction port, so that it is possible to suppress the rotational noise of the turbofan.
  • the suction port is formed around the fan axis, the portion on the downstream side of the air flow in the upstream passage is provided around the fan axis, and one end of the guide portion is the fan. It is formed around the axis. Therefore, the effect of the guide portion, which guides more air to the center side of the suction port as compared with the case where the guide portion is not provided, can be obtained evenly over the entire circumference of the fan axis.
  • the other end of the guide portion is formed around the fan axis.
  • the upstream side equipment which is a heat exchanger or a filter is arranged in the upstream side passage, and the guide portion is arranged away from the upstream side equipment. Therefore, it is possible to prevent the guide unit from coming into contact with the upstream equipment when, for example, vibration is applied to the blower, and by extension, the upstream caused by the contact between the guide unit and the upstream equipment. It is possible to prevent damage to the side equipment.
  • an upstream side device which is a heat exchanger or a filter is arranged in the upstream side passage.
  • the fan case has a wind guide wall surface that extends outward from the suction portion in the fan radial direction and guides the air that has passed through the upstream device to collect at the suction port, and one end of the guide portion is a fan shaft with respect to the air guide wall surface. Placed on one side of the direction. The distance between one end of the guide portion and the air guide wall surface in the fan axis direction is larger than the distance between one end of the guide portion and the upstream device in the fan axis direction.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

Un turbo-ventilateur (12) tourne autour d'un axe de ventilateur (Cf) et souffle de l'air aspiré depuis un côté dans la direction axiale (Da) de l'axe de ventilateur en direction de l'extérieur dans la direction radiale de l'axe de ventilateur. Un carter de ventilateur (16) présente une partie d'aspiration (162) qui est disposée sur un côté dans la direction axiale par rapport au turbo-ventilateur, et qui présente une ouverture d'aspiration (162a) à travers laquelle l'air passe en direction du turbo-ventilateur. Le carter de ventilateur reçoit le turbo-ventilateur et est configuré de sorte que de l'air est soufflé à partir du turbo-ventilateur le long de toute la circonférence du turbo-ventilateur. Une partie de guidage (22) est disposée sur un côté dans la direction axiale par rapport au turbo-ventilateur. Le carter de ventilateur est agencé de sorte que l'air converge en direction de l'ouverture d'aspiration à partir d'un passage amont (20a), qui est disposé sur le côté amont de l'écoulement d'air par rapport à l'ouverture d'aspiration. La partie de guidage réduit l'irrégularité de la distribution de débit de l'air traversant l'ouverture d'aspiration en raison de la génération d'une irrégularité dans la distribution de la résistance à l'écoulement de l'air traversant l'ouverture d'aspiration, par rapport au moment où la partie de guidage n'est pas fournie.
PCT/JP2021/006379 2020-02-27 2021-02-19 Dispositif de soufflante WO2021172209A1 (fr)

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JP2020-032098 2020-02-27
JP2020032098A JP7302505B2 (ja) 2020-02-27 2020-02-27 送風装置

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Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09222097A (ja) * 1996-02-19 1997-08-26 Matsushita Refrig Co Ltd 遠心送風機
JP2010053815A (ja) * 2008-08-29 2010-03-11 Denso Corp 送風機
JP2010181058A (ja) * 2009-02-04 2010-08-19 Daikin Ind Ltd 空気調和機
JP2013036444A (ja) * 2011-08-10 2013-02-21 Daikin Industries Ltd 遠心送風機
JP2014173584A (ja) * 2013-03-13 2014-09-22 Topre Corp 送風ユニット
JP2015096716A (ja) * 2013-11-15 2015-05-21 リンナイ株式会社 遠心式ファン
WO2018219414A2 (fr) * 2017-06-01 2018-12-06 Ziehl-Abegg Se Ventilateur et grille de pré-guidage pour ventilateur
JP2019078174A (ja) * 2017-10-20 2019-05-23 クボタ空調株式会社 空気調和機

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPWO2004055380A1 (ja) * 2002-12-16 2006-04-20 ダイキン工業株式会社 遠心送風機及び遠心送風機を備えた空気調和装置
DE202004021795U1 (de) * 2003-06-20 2011-02-10 ResMed Ltd., Bella Vista Atemgasvorrichtung mit Befeuchter
NZ597256A (en) * 2009-08-11 2013-11-29 Resmed Motor Technologies Inc Single stage, axial symmetric blower and portable ventilator
JP7047554B2 (ja) * 2018-04-06 2022-04-05 株式会社Soken 遠心送風機

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09222097A (ja) * 1996-02-19 1997-08-26 Matsushita Refrig Co Ltd 遠心送風機
JP2010053815A (ja) * 2008-08-29 2010-03-11 Denso Corp 送風機
JP2010181058A (ja) * 2009-02-04 2010-08-19 Daikin Ind Ltd 空気調和機
JP2013036444A (ja) * 2011-08-10 2013-02-21 Daikin Industries Ltd 遠心送風機
JP2014173584A (ja) * 2013-03-13 2014-09-22 Topre Corp 送風ユニット
JP2015096716A (ja) * 2013-11-15 2015-05-21 リンナイ株式会社 遠心式ファン
WO2018219414A2 (fr) * 2017-06-01 2018-12-06 Ziehl-Abegg Se Ventilateur et grille de pré-guidage pour ventilateur
JP2019078174A (ja) * 2017-10-20 2019-05-23 クボタ空調株式会社 空気調和機

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