WO2020022031A1 - 排水ポンプ、及び排水ポンプ用の取付部材 - Google Patents

排水ポンプ、及び排水ポンプ用の取付部材 Download PDF

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Publication number
WO2020022031A1
WO2020022031A1 PCT/JP2019/026761 JP2019026761W WO2020022031A1 WO 2020022031 A1 WO2020022031 A1 WO 2020022031A1 JP 2019026761 W JP2019026761 W JP 2019026761W WO 2020022031 A1 WO2020022031 A1 WO 2020022031A1
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WO
WIPO (PCT)
Prior art keywords
mounting
protrusions
drainage pump
insertion hole
drain pump
Prior art date
Application number
PCT/JP2019/026761
Other languages
English (en)
French (fr)
Japanese (ja)
Inventor
克司 佐藤
友也 加藤
永 佐藤
雄太 西山
Original Assignee
株式会社不二工機
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 株式会社不二工機 filed Critical 株式会社不二工機
Priority to KR1020217004965A priority Critical patent/KR20210030980A/ko
Priority to CN201980048357.8A priority patent/CN112437843A/zh
Publication of WO2020022031A1 publication Critical patent/WO2020022031A1/ja

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Classifications

    • 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
    • F04D29/669—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for liquid pumps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
    • F04D1/14—Pumps raising fluids by centrifugal force within a conical rotary bowl with vertical axis
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D11/00—Other rotary non-positive-displacement pumps
    • 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
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • 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
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
    • F16F15/00—Suppression of vibrations in systems; Means or arrangements for avoiding or reducing out-of-balance forces, e.g. due to motion
    • F16F15/02—Suppression of vibrations of non-rotating, e.g. reciprocating systems; Suppression of vibrations of rotating systems by use of members not moving with the rotating systems
    • 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
    • F05D2210/00—Working fluids
    • F05D2210/10—Kind or type
    • F05D2210/11—Kind or type liquid, i.e. incompressible

Definitions

  • the present invention relates to a drain pump, for example, used in an indoor unit of an air conditioner, and a drain pump suitable for discharging drain water in a drain pan that receives water condensed in a heat exchanger to the outside, and drainage thereof.
  • the present invention relates to a mounting member for a pump.
  • a drain pump (also referred to as a drain pump) is used to discharge the drain water accumulated in the drain pan to the outside (outdoor) of the indoor unit.
  • FIGS. 10 to 12 show a conventional example of such a drain pump and a main part of an air conditioner equipped with the drain pump.
  • the conventional drain pump 101 shown in FIGS. 10 and 11A and 11B includes a pump chamber (not shown) for accommodating the rotating blades, a tubular suction port 112 provided at a lower portion of the pump chamber, and a pump chamber.
  • a synthetic resin housing 110 having a tubular discharge port 113 extending toward the side is provided.
  • a cylindrical synthetic resin lower cover (also referred to as a housing cover) 120 is attached to an upper portion (upper opening) of the housing 110 via an O-ring (not shown) as a seal member.
  • the lower cover 120 is detachably attached to the housing 110 by a snap-fit function using the elastic force of a snap-fit arm 111 provided on the housing 110.
  • a motor 140 including a stator, a rotor, and the like is mounted on an upper portion of the lower cover 120 such that a lead wire lead-out portion 141 for leading the lead wire 142 is exposed to the outside.
  • the drive shaft of the motor 140 is connected to the rotation shaft of a rotary blade disposed in the pump chamber.
  • a short cylindrical upper cover made of synthetic resin (also referred to as a motor cover) 130 with a ceiling covering the upper side of the motor 140 is attached to an upper portion (upper opening) of the lower cover 120.
  • the upper cover 130 is detachably attached to the lower cover 120 by a snap fit function utilizing the elastic force of a snap fit arm 131 provided on the upper cover 130.
  • a mounting part 132 for mounting the drainage pump 101 to the mounting top plate 150 in the indoor unit is provided.
  • mounting portions 132 having unequal pitches are formed at three locations near the outer periphery of the upper portion (ceiling portion) of the upper cover 130.
  • An insertion hole 136 into which a screw 160 for fastening and fixing is inserted is formed in a fixing plate portion 135 extending outward from the upper end of each mounting portion 132 in the horizontal direction.
  • the drain pump 101 has a vibration-proof rubber (also referred to as a rubber bush) 155 interposed between (the upper surface of) the fixing plate portion 135 and (the lower surface of) the mounting top plate 150.
  • the screw 160 is fixed (fastened) to the mounting top plate 150 by screwing (fastening) the screw 160 to (the screw hole provided in) the mounting top plate 150 through the insertion hole 136.
  • vibration generated from the motor propagates to the indoor unit of the air conditioner, generating noise and deteriorating quietness. Therefore, as described above, when attaching the drain pump to the indoor unit, the vibration isolating rubber and the like are arranged between the mounting portion of the drain pump and the top plate of the indoor unit to reduce the propagation of vibration. .
  • the present invention has been made in view of the above circumstances, and an object of the present invention is to provide a drain pump and a drain pump that can effectively reduce vibration propagation to an indoor unit while suppressing the number of parts and the cost of parts.
  • An object of the present invention is to provide a mounting member for a pump.
  • a drain pump is basically a drain pump containing rotating blades that draws up water and discharges it to the outside by being rotated by a motor.
  • a plurality of protrusions protruding toward the mounting member and brought into contact with the mounting member are dispersedly arranged.
  • the protrusion makes point contact or surface contact with the mounting member.
  • the protrusion has a hemispherical shape, a cylindrical shape, a truncated cone shape, or a column shape having a sector-shaped cross section along the circumferential direction around the insertion hole.
  • a wavy portion having peaks and valleys alternately provided around the insertion hole is provided, and the protruding portion is formed by the peaks in the wavy portion.
  • the plurality of protrusions are distributed and arranged on concentric circles around the insertion hole.
  • the plurality of protrusions are dispersedly arranged on a plurality of concentric circles having different radii around the insertion hole.
  • the plurality of protrusions distributed on a certain concentric circle are provided at different angular positions from the plurality of protrusions distributed on another concentric circle.
  • the mounting member for the drain pump according to the present invention is basically mounted and fixed via a fastening member to a drain pump containing rotating blades that suck up water and discharge it to the outside by being rotated by a motor.
  • the fastening member protrudes toward the drainage pump side around the fastening hole in the attachment member and contacts the drainage pump. It is characterized in that a plurality of projections to be brought into contact with each other are dispersedly arranged.
  • the mounting portion for mounting and fixing the drain pump to the mounting member is provided with an insertion hole for passing the fastening member, and around the insertion hole in the mounting portion, toward the mounting member.
  • a plurality of protrusions that protrude and are brought into contact with the mounting member are arranged in a distributed manner, and the protrusions reduce the contact area of the mounting portion of the drainage pump with the mounting member. Vibration propagation to the unit can be effectively reduced, and thus noise of the air conditioner can be reduced.
  • the perspective view showing one embodiment of the drainage pump concerning the present invention The top view which shows the drainage pump shown in FIG. FIG. 2B is a cross-sectional view of the drainage pump shown in FIG.
  • the principal part enlarged view which shows the principal part of the air conditioner with which one Embodiment of the drainage pump which concerns on this invention was attached to the attachment top plate.
  • the principal part expansion perspective view which shows the other example (the 1) of the drainage pump which concerns on this invention.
  • the principal part expansion perspective view which shows the other example (the 4) of the drainage pump which concerns on this invention The principal part expansion perspective view which shows the other example (the 4) of the drainage pump which concerns on this invention.
  • FIG. 9 is a perspective view showing a conventional drain pump.
  • the top view which shows the drainage pump shown in FIG. FIG. 11B is a cross-sectional view of the drain pump shown in FIG. 10 taken along the line UU in FIG. 11A.
  • FIG. 1 and 2A and 2B show one embodiment of a drainage pump according to the present invention.
  • FIG. 1 is a perspective view
  • FIG. 2A is a plan view
  • FIG. 2B is a sectional view taken along the line UU in FIG. 2A.
  • FIG. 3 is an enlarged view of a main part showing a main part of the air conditioner in which one embodiment of the drain pump according to the present invention is mounted on a mounting top plate.
  • FIG. 2A shows a state where the motor 40 is removed from the drain pump 1 shown in FIG.
  • the drainage pump 1 of the illustrated embodiment is for sucking drain water collected in a drain pan 90 and draining it to the outside of the room.
  • the basic configuration (housing, lower cover, rotating The configuration of the blades, the motor, etc.) is almost the same as the conventional drain pump 101 shown in FIGS. Therefore, parts corresponding to the respective parts of the conventional drain pump 101 described above with reference to FIGS. 10 to 12 are denoted by the same reference numerals (reference numerals obtained by subtracting 100), and detailed description thereof will be omitted.
  • the configuration of the mounting portion 32 which is a feature of the present invention, will be mainly described.
  • the drainage pump 1 has a housing 10, a lower cover 20, and an upper cover 30 having the same configuration as the above-described conventional drainage pump 101, and uses the elastic force of the snap-fit arms 11, 31. It is detachably attached by the snap fit function. Rotating blades are rotatably accommodated in the housing 10 (pump chamber), and a motor 40 is disposed inside the lower cover 20 and the upper cover 30. Leg-like mounting portions 32 arranged at irregular pitches in the circumferential direction are provided at three places near the outer periphery of the upper portion (the ceiling portion) of the upper cover 30 that covers the upper side of the motor 40 (that is, the upper portion of the drainage pump 1). It is formed by integral molding.
  • each of the mounting portions 32 includes a substantially rectangular plate-shaped upright portion 33 that rises upward (vertically) from near the outer periphery of the upper portion (the ceiling) of the upper cover 30, and an upright portion 33. And a fixing plate portion 35 extending outwardly (horizontally) from the upper edge of the fixing plate 35, and the two form a substantially L-shaped cross-sectional shape.
  • the upper surface (flat surface) of the fixing plate portion 35 is a facing surface facing the (top surface of) the mounting top plate 50 as a mounting member.
  • An insertion hole 36 into which the fastening member 60 is inserted is formed.
  • a plurality of projections 37 projecting upward are formed by integral molding around the insertion hole 36 on the upper surface of the fixed plate portion 35.
  • a total of six hemispherical projections 37 are distributed (scattered) at equal angular pitches (equal angular intervals) on concentric circles around the insertion holes 36.
  • a pair of rib plate portions 39 having a substantially parallelogram shape in a side view are integrally formed (integrally formed) on both circumferential sides of each mounting portion 32. More specifically, a pair of rib plate portions 39 corresponding to the respective mounting portions 32 are located at both ends in the circumferential direction of the upright plate portion 33, and each of the rib plate portions 39 is attached to the fixed plate portion 35 from the upper surface of the upper cover 30. It stands up to the position where it reaches.
  • the drainage pump 1 has a plurality of protrusions provided on (the upper surface of) the fixed plate portion 35 with the (upper surface) of the fixed plate portion 35 facing the (lower surface) of the mounting top plate 50.
  • the screw 60 is passed through the insertion hole 36 and the screw 60 is provided in the mounting top plate 50 (with the 37 in direct contact with the mounting top plate 50 (the lower surface of the mounting top plate 50) (that is, without sandwiching the vibration-proof rubber or the like). ) Is fixed (fastened and fixed) to the mounting top plate 50 by screwing (tightening). That is, at this time, the upper surface of the fixed plate portion 35 is separated from the lower surface of the mounting top plate 50.
  • the mounting part 32 fixes the pump to the mounting top plate 50 of the indoor unit of the air conditioner, and the motor 40 controls the inside of the housing 10 (pump chamber).
  • the rotary blade accommodated in (1) is rotated, the drain water accumulated in the drain pan 90 is sucked up from the suction port 12 and discharged from the discharge port 13 through the pump chamber.
  • the discharged drain water is drained out of the room via a pipe 13A connected to the discharge port 13.
  • vibrations vertical and horizontal vibrations generated from the motor 40 are transmitted to the mounting portion 32, but the mounting portion 32 and the mounting top plate 50 of the indoor unit of the air conditioner are only via the protrusion 37.
  • Partial contact (specifically, point contact at each protrusion 37) reduces the contact area between the mounting portion 32 and the mounting top plate 50 of the indoor unit of the air conditioner. Vibration propagation to the mounting top plate 50 is reduced.
  • the mounting portion 32 for mounting and fixing the drainage pump 1 to the mounting top plate 50 is provided with the insertion hole 36 for the screw 60 to pass through.
  • a plurality of protrusions 37 projecting toward the mounting top plate 50 and abutting against the mounting top plate 50 are dispersedly arranged around the insertion hole 36 of the drainage pump 1. Since the contact area of the indoor unit with the mounting top plate 50 is reduced, the propagation of vibrations to the indoor unit can be effectively reduced without increasing the number of parts and the cost of the parts, so that the noise of the air conditioner Can be reduced.
  • the protrusion 37 provided on the mounting portion 32 has a hemispherical shape.
  • the shape of the protrusion 37 is not limited to the above embodiment, and may be, for example, a short columnar shape (see FIG. 4A).
  • a truncated cone shape (see FIG. 4B) that tapers toward the upper side (toward the mounting top plate 50 side), a column shape with a fan-shaped cross section along the (concentric) circumferential direction around the insertion hole 36 (see FIG. 4C), and the like.
  • the projections 37 may be brought into surface contact with the mounting top plate 50 of the indoor unit of the air conditioner.
  • an endless annular wavy portion 38 in which peaks and valleys are alternately provided (in the circumferential direction) is protruded around the insertion hole 36 on the upper surface of the fixing plate portion 35 of the mounting portion 32, and the wavy shape is formed.
  • the protrusion 37 may be formed by the peaks (eight peaks in the example shown in FIG. 5) of the portion 38 (see FIG. 5).
  • the number of the protrusions 37 provided on the mounting portion 32 is not limited to the above embodiment, and may be, for example, three (see FIG. 6).
  • the plurality of protrusions 37 provided on the mounting portion 32 are dispersedly arranged on a concentric circle around the insertion hole 36, but the plurality of protrusions 37 are formed around the insertion hole 36. They may be distributed on a plurality of concentric circles having different radii (see FIGS. 7A and 7B).
  • the plurality of protrusions distributed on a certain concentric circle are arranged at the same angular position (circumferential position) with the plurality of protrusions distributed on another concentric circle, and have the same phase in the circumferential direction.
  • the number, arrangement, material, and the like of the mounting portions 32 provided on the drainage pump 1 are not limited to the above embodiment.
  • FIG. 8 is an enlarged perspective view of a main part showing one embodiment of a mounting top plate as a mounting member for a drainage pump according to the present invention.
  • the protrusion 37 for preventing vibration propagation is provided on the (fixed plate portion 35) side of the mounting portion 32 of the drainage pump 1.
  • a protrusion 57 for preventing vibration propagation is provided on the mounting top plate 50 side of the indoor unit to which the mounting portion 32 of the drainage pump 1 is mounted.
  • the mounting top plate 50 is provided with a cylindrical fastening portion 55 having a screw hole (fastening hole) 56 formed of a bottomed hole or a through hole provided with a female screw to which the screw 60 is tightened.
  • a screw hole 56 on the lower surface of the fastening portion 55 (the surface facing the upper surface of the fixing plate portion 35 of the mounting portion 32), a plurality of protrusions 57 protruding downward (that is, toward the mounting portion 32). It is formed by integral molding.
  • a total of six hemispherical projections 57 are distributed and arranged at equal angular pitches (equal angular intervals) on concentric circles around the screw holes 56, but the projections 37 are disposed on the drain pump 1 side.
  • the screw 60 is attached to (the fastening part 55 of) the mounting top plate 50 to which the drainage pump 1 is mounted and fixed via the screw 60.
  • a screw hole 56 to be fastened is provided, and projects around the screw hole 56 in the mounting top plate 50 (the fastening portion 55) toward the (the mounting portion 32) of the drainage pump 1 (the mounting portion of the drainage pump 1).
  • 32) a plurality of protrusions 57 abutting on the mounting surface 32 are arranged in a distributed manner, and the protrusions 57 reduce the contact area of the mounting portion 32 of the drainage pump 1 with the mounting top plate 50 of the indoor unit. Vibration propagation to the indoor unit can be effectively reduced without increasing cost, and thus noise of the air conditioner can be reduced.
  • the fastening portion 55 provided with the protrusion 57 has a cylindrical shape (in other words, is protruded cylindrically from the lower surface of the mounting top plate 50).
  • the fastening portion 55 provided with the protrusion 57 may be provided, for example, on the lower surface of the mounting top plate 50, or may be formed slightly depressed from the lower surface of the mounting top plate 50, and the mounting portion 32 of the drainage pump 1 may be provided. It may be provided in a fitting recess 58 or the like which also serves as positioning and is formed in substantially the same shape as that of FIG. 9 (see FIG. 9).
  • the protrusions 37 and 57 are provided on one of the mounting portion 32 side of the drain pump 1 and the mounting top plate 50 side of the indoor unit. It goes without saying that the projections may be provided on both sides of the unit on the top panel 50.
  • the projections 37 and 57 are provided on all the attachment portions 32 of the drainage pump 1 or all the fastening portions 55 of the attachment top plate 50 of the indoor unit. Needless to say, it is not necessary to provide a projection on the fastening portion 32 or the fastening portion 55 (in other words, the projection may be omitted on some of the attachment portions 32 and the fastening portion 55).
  • each of the plurality of protrusions 37 and 57 has the same shape, but the present invention is not limited to this, and the protrusions 37 and 57 having different shapes are mixed. It may be.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Devices For Blowing Cold Air, Devices For Blowing Warm Air, And Means For Preventing Water Condensation In Air Conditioning Units (AREA)
PCT/JP2019/026761 2018-07-25 2019-07-05 排水ポンプ、及び排水ポンプ用の取付部材 WO2020022031A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
KR1020217004965A KR20210030980A (ko) 2018-07-25 2019-07-05 배수 펌프 및 배수 펌프용의 부착 부재
CN201980048357.8A CN112437843A (zh) 2018-07-25 2019-07-05 排水泵及排水泵用的安装部件

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-139254 2018-07-25
JP2018139254A JP7097061B2 (ja) 2018-07-25 2018-07-25 排水ポンプ

Publications (1)

Publication Number Publication Date
WO2020022031A1 true WO2020022031A1 (ja) 2020-01-30

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PCT/JP2019/026761 WO2020022031A1 (ja) 2018-07-25 2019-07-05 排水ポンプ、及び排水ポンプ用の取付部材

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JP (1) JP7097061B2 (ko)
KR (1) KR20210030980A (ko)
CN (1) CN112437843A (ko)
WO (1) WO2020022031A1 (ko)

Families Citing this family (2)

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Publication number Priority date Publication date Assignee Title
JP2022131847A (ja) * 2021-02-26 2022-09-07 ミネベアミツミ株式会社 モータ
JP7376949B2 (ja) * 2021-03-23 2023-11-09 株式会社不二工機 排水ポンプ

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012016363A (ja) * 2010-07-06 2012-01-26 Hitachi Appliances Inc 電気掃除機
JP2013015097A (ja) * 2011-07-05 2013-01-24 Saginomiya Seisakusho Inc 空気調和機用排水ポンプ

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Publication number Priority date Publication date Assignee Title
JPH0599143A (ja) * 1991-04-11 1993-04-20 Mitsubishi Electric Corp 圧縮機の防振支持装置
KR100535506B1 (ko) * 2004-06-28 2005-12-08 현대자동차주식회사 에어 포켓이 형성된 라디에이터 방진용 고무
JP2010275972A (ja) 2009-05-29 2010-12-09 Fuji Koki Corp 排水ポンプ
JP5707086B2 (ja) 2010-10-14 2015-04-22 株式会社不二工機 排水ポンプ
CN103591168A (zh) * 2013-10-30 2014-02-19 芜湖鸿耀汽车工业有限公司 一种弹性片凸起缓冲减振从动盘总成
JP2018091190A (ja) * 2016-12-01 2018-06-14 株式会社鷺宮製作所 排水ポンプおよび空気調和機

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012016363A (ja) * 2010-07-06 2012-01-26 Hitachi Appliances Inc 電気掃除機
JP2013015097A (ja) * 2011-07-05 2013-01-24 Saginomiya Seisakusho Inc 空気調和機用排水ポンプ

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Publication number Publication date
CN112437843A (zh) 2021-03-02
KR20210030980A (ko) 2021-03-18
JP7097061B2 (ja) 2022-07-07
JP2020016180A (ja) 2020-01-30

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