WO2020022030A1 - Pompe de vidange - Google Patents

Pompe de vidange Download PDF

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Publication number
WO2020022030A1
WO2020022030A1 PCT/JP2019/026760 JP2019026760W WO2020022030A1 WO 2020022030 A1 WO2020022030 A1 WO 2020022030A1 JP 2019026760 W JP2019026760 W JP 2019026760W WO 2020022030 A1 WO2020022030 A1 WO 2020022030A1
Authority
WO
WIPO (PCT)
Prior art keywords
plate portion
mounting
pump
drain pump
drain
Prior art date
Application number
PCT/JP2019/026760
Other languages
English (en)
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 CN201980048414.2A priority Critical patent/CN112469905A/zh
Priority to KR1020217004964A priority patent/KR102578926B1/ko
Publication of WO2020022030A1 publication Critical patent/WO2020022030A1/fr

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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
    • 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
    • F04D29/66—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

Definitions

  • the present invention relates to a drain pump, for example, a drain pump used in an indoor unit of an air conditioner and suitable for discharging drain water in a drain pan for receiving water condensed in a heat exchanger to the outside.
  • a drain pump for example, a drain pump used in an indoor unit of an air conditioner and suitable for discharging drain water in a drain pan for receiving water condensed in a heat exchanger to the outside.
  • 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. 6 to 8 show a conventional example of such a drain pump and a main part of an air conditioner equipped with the drain pump.
  • a conventional drain pump 101 shown in FIGS. 6 and 7A and B includes a pump chamber (not shown) for accommodating a rotary blade, 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.
  • the rotating blades fixed to the mounting top plate 150 of the indoor unit of the air conditioner by the mounting portion 132 and housed in the housing 110 (pump chamber) by the motor 140 Is rotated, the drain water accumulated in the drain pan 190 is sucked up from the suction port 112 and discharged from the discharge port 113 via the pump chamber.
  • the discharged drain water is once guided upward through a pipe 113A connected to the discharge port 113, and then guided laterally to be drained out of the room (for example, refer to Patent Documents 1 and 2 below). See).
  • 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 drainage pump capable of effectively reducing vibration propagation to an indoor unit while suppressing the number of parts and the cost of parts. It is in.
  • a drain pump according to the present invention is basically a drain pump containing rotating blades that draws up water and discharges it to the outside by being rotated by a motor. Is attached to the mounting member, and the mounting portion is provided with a corrugated plate for preventing the propagation of vibration to the mounting member by elastic deformation.
  • the corrugated plate portion has a shape that undulates in a direction perpendicular to a surface of the mounting portion facing the mounting member.
  • the drainage pump includes an upper cover that covers an upper part of the drainage pump
  • the mounting portion includes a standing plate portion that rises upward from the upper cover, and the mounting member that extends outward from the standing plate portion and extends outward.
  • a fixed plate portion having an abutting surface that contacts the fixed plate portion, and the corrugated plate portion is provided at a root portion of the fixed plate portion on the side of the upright plate portion.
  • the corrugated plate portion has a shape that undulates in a direction parallel to a surface of the mounting portion facing the mounting member.
  • the drainage pump has an upper cover that covers an upper part of the drainage pump, and the attachment portion is configured to stand upright from the upper cover and to face the upright portion outside the upright portion. And a fixed plate portion extending outward from the opposed plate portion and having a contact surface that contacts the mounting member, and the upright plate portion and the opposed plate portion have The corrugated plate portion is provided so as to connect them.
  • the mounting portion for mounting and fixing the drainage pump to the mounting member is provided with a corrugated plate portion for preventing vibration propagation to the mounting member by elastic deformation, and from the motor by the elastic deformation of the corrugated plate portion. Since the generated vibration is absorbed and mitigated, the vibration propagation to the indoor unit can be effectively reduced without increasing the number of parts and the cost of the parts, thereby reducing the noise of the air conditioner. .
  • the perspective view which shows 1st Embodiment of the drainage pump which concerns on this 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 1st Embodiment of the drainage pump which concerns on this invention was attached to the mounting top plate.
  • the top view of the drainage pump shown in FIG. FIG. 9 is a perspective view showing a conventional drain pump.
  • the top view which shows the drainage pump shown in FIG. FIG. 7B is a cross-sectional view of the drain pump shown in FIG. 6 taken along the line UU in FIG. 7A.
  • the principal part enlarged view which shows the principal part of the air conditioner in which the drainage pump of the conventional example was attached to the mounting top plate.
  • FIG. 1 and 2A and 2B show a first 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 a main part enlarged view showing a main part of the air conditioner in which the first embodiment of the drainage 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, and the like) is almost the same as that of 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. 6 to 8 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 portion) of the upper cover 30, and an upright portion 33. And a fixing plate portion 35 extending outward (horizontally) from the upper end edge of the fixing plate.
  • the upper surface (flat surface) of the fixed plate portion 35 is a contact surface that is in contact with (the lower 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 thinner plate than the fixed plate portion 35 and the standing plate portion 33 is provided at a root portion of the fixed plate portion 35 on the side of the standing plate portion 33, and the upper and lower directions (in other words, the upper surface of the fixed plate portion 35 and the mounting top plate
  • An elastically deformable corrugated plate portion 37 having a wavy shape in a direction perpendicular to the contact surface with respect to 50 is formed.
  • the corrugated plate portion 37 is formed so as to undulate within the range of the plate thickness of the fixed plate portion 35 (particularly, see FIG. 2B).
  • a pair of rib plate portions 39 having a substantially triangular 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 standing plate portion 33, and each of the rib plate portions 39 faces upward from the upper surface of the upper cover 30. It stands up to the top.
  • the drainage pump 1 is in a state where the (fixed plate portion 35) (upper surface) is directly in contact with the mounting top plate 50 (lower surface) (that is, without sandwiching the vibration-proof rubber or the like). Then, the screw 60 is fixed (fastened) to the mounting top plate 50 by screwing (tightening) the screw 60 to (the screw hole provided in) the mounting top plate 50 through the insertion hole 36.
  • 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.
  • vibration vertical and horizontal vibrations generated from the motor 40 is transmitted to the mounting portion 32, and the vibration is caused by elastic deformation of the corrugated plate portion 37 provided on the mounting portion 32 (air conditioning). It is absorbed and mitigated (before it is transmitted to the mounting top plate 50 of the indoor unit of the air conditioner), and the vibration propagation to the mounting top plate 50 of the indoor unit of the air conditioner is reduced.
  • the mounting portion 32 for mounting and fixing the drainage pump 1 to the mounting top plate 50 is provided with a wavy plate portion that prevents the propagation of vibration to the mounting top plate 50 by elastic deformation. Since the vibration generated from the motor 40 is absorbed and mitigated by the elastic deformation of the wavy plate portion 37, the vibration propagation to the indoor unit is effectively reduced without increasing the number of parts and the cost of the parts. Therefore, the noise of the air conditioner can be reduced.
  • FIG. 4 and 5 show a second embodiment of the drain pump according to the present invention.
  • FIG. 4 is a perspective view
  • FIG. 5 is a plan view.
  • FIG. 5 shows a state in which the motor 40 is removed from the drain pump 2 shown in FIG.
  • the drainage pump 2 of the second embodiment is substantially the same as the drainage pump 1 of the first embodiment except for the mounting portion 32. Therefore, portions corresponding to the respective portions of the drain pump 1 of the first embodiment are denoted by the same reference numerals, and redundant description will be omitted. In the following, differences will be mainly described.
  • the drainage pump 2 according to the second embodiment like the drainage pump 1 according to the first embodiment, has an outer periphery of an upper part (a ceiling part) of an upper cover 30 that covers the upper side of the motor 40 (that is, the upper part of the drainage pump 1).
  • Leg-like mounting portions 32 arranged at irregular pitches in the circumferential direction are formed integrally at three closer positions.
  • 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 the upright portion 33.
  • a substantially rectangular plate-like opposing plate portion 34 disposed outside the vertical plate portion 33 so as to face the standing plate portion 33, and a fixed plate extending outward (horizontally) from the upper end edge of the opposing plate portion 34 And a portion 35. And it is thinner than the standing plate part 33, the facing plate part 34, and the fixed plate part 35 so that one side part or its vicinity of the standing plate part 33 and one side part or its vicinity of the facing plate part 34 may be connected.
  • An elastically deformable wavy plate portion 38 having a wavy shape in the lateral direction (in other words, in the direction parallel to the upper surface of the fixed plate portion 35 and the surface in contact with the mounting top plate 50) is provided.
  • the height (in the vertical direction) of the opposing plate portion 34 is slightly shorter than the height of the standing plate portion 33, and the wavy plate portion 38 extends over the entire length of the opposing plate portion 34 (in the vertical direction). Is formed.
  • the upper surface (flat surface) of the fixed plate portion 35 is a contact surface that is in contact with (the lower 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 pair of rib plate portions 39 having a substantially triangular 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 standing plate portion 33, and each of the rib plate portions 39 faces upward from the upper surface of the upper cover 30. It stands up to the top.
  • the drain pump 2 having such a configuration, similarly to the drain pump 1 according to the first embodiment, vibrations (vertical and horizontal vibrations) generated from the motor 40 are transmitted to the mounting portion 32.
  • the corrugated plate portion 38 provided in the portion 32 is elastically deformed (before being transmitted to the mounting top plate 50 of the indoor unit of the air conditioner), thereby being absorbed and mitigated, and is transferred to the mounting top plate 50 of the indoor unit of the air conditioner. Is reduced.
  • the mounting portion 32 for mounting and fixing the drainage pump 1 to the mounting top plate 50 is provided with a wavy plate portion for preventing the propagation of vibration to the mounting top plate 50 by elastic deformation.
  • the vibration generated from the motor 40 is absorbed and mitigated by the elastic deformation of the corrugated plate portion 38, so that the vibration propagation to the indoor unit can be effectively reduced without increasing the number of parts and the cost of parts. Therefore, the noise of the air conditioner can be reduced.
  • the shape, etc. of the corrugated plate portions 37, 38 provided on each mounting portion 32 are not limited to the above embodiment. Of course.
  • the corrugated plate portions 37 and 38 are provided on all the attachment portions 32 of the drainage pumps 1 and 2, but it is not necessary to provide the corrugated plate portions 37 and 38 on all the attachment portions 32. Of course, it is good (in other words, the corrugated plate portion may be omitted for some of the attachment portions 32).
  • all of the plurality of wavy plate portions 37 and 38 have the same shape, but the present invention is not limited to this, and the wavy plate portions 37 and 38 having different shapes are used. May be combined so as to be mixed.

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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)

Abstract

L'invention concerne une pompe de vidange conçue de telle sorte que la transmission d'une vibration à une unité d'intérieur peut être efficacement réduite sans augmentation du nombre ni du coût des pièces. Une section de montage (32) permettant de monter et de fixer une pompe de vidange (1) à une plaque supérieure de montage (50) est pourvue d'une section de plaque ondulée (37) qui se déforme élastiquement de façon à empêcher la transmission d'une vibration à la plaque supérieure de montage (50). La déformation élastique de l'élément de plaque ondulé (37) absorbe et atténue la vibration générée par un moteur (40).
PCT/JP2019/026760 2018-07-25 2019-07-05 Pompe de vidange WO2020022030A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201980048414.2A CN112469905A (zh) 2018-07-25 2019-07-05 排水泵
KR1020217004964A KR102578926B1 (ko) 2018-07-25 2019-07-05 배수 펌프

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2018-138988 2018-07-25
JP2018138988A JP6950962B2 (ja) 2018-07-25 2018-07-25 排水ポンプ

Publications (1)

Publication Number Publication Date
WO2020022030A1 true WO2020022030A1 (fr) 2020-01-30

Family

ID=69181486

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2019/026760 WO2020022030A1 (fr) 2018-07-25 2019-07-05 Pompe de vidange

Country Status (4)

Country Link
JP (1) JP6950962B2 (fr)
KR (1) KR102578926B1 (fr)
CN (1) CN112469905A (fr)
WO (1) WO2020022030A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022115796A (ja) * 2021-01-28 2022-08-09 株式会社不二工機 排水ポンプ

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7204257B2 (ja) * 2021-01-29 2023-01-16 株式会社不二工機 排水ポンプ
WO2023085301A1 (fr) * 2021-11-11 2023-05-19 株式会社不二工機 Pompe d'épuisement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0482440U (fr) * 1990-11-28 1992-07-17
JP2008116166A (ja) * 2006-11-07 2008-05-22 Saginomiya Seisakusho Inc 空気調和機の排水ポンプの取り付け構造及び空気調和機
JP2013015097A (ja) * 2011-07-05 2013-01-24 Saginomiya Seisakusho Inc 空気調和機用排水ポンプ
US20180142708A1 (en) * 2016-11-21 2018-05-24 Sunonwealth Electric Machine Industry Co., Ltd. Fan Frame of an Axial-Flow Fan

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR9001772A (pt) * 1990-04-06 1991-11-05 Brasil Compressores Sa Sistema de suspensao para compressor hermetico alternativo
JP4250353B2 (ja) * 2001-06-22 2009-04-08 エドワーズ株式会社 真空ポンプ
CN2771291Y (zh) * 2005-03-11 2006-04-12 江苏双良复合材料有限公司 复合材料公路护栏
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
JP5852373B2 (ja) * 2011-09-05 2016-02-03 パナソニック株式会社 冷却機器の圧縮機用ダンパーおよび冷蔵庫

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0482440U (fr) * 1990-11-28 1992-07-17
JP2008116166A (ja) * 2006-11-07 2008-05-22 Saginomiya Seisakusho Inc 空気調和機の排水ポンプの取り付け構造及び空気調和機
JP2013015097A (ja) * 2011-07-05 2013-01-24 Saginomiya Seisakusho Inc 空気調和機用排水ポンプ
US20180142708A1 (en) * 2016-11-21 2018-05-24 Sunonwealth Electric Machine Industry Co., Ltd. Fan Frame of an Axial-Flow Fan

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022115796A (ja) * 2021-01-28 2022-08-09 株式会社不二工機 排水ポンプ
JP7266321B2 (ja) 2021-01-28 2023-04-28 株式会社不二工機 排水ポンプ

Also Published As

Publication number Publication date
KR20210034634A (ko) 2021-03-30
JP2020016175A (ja) 2020-01-30
JP6950962B2 (ja) 2021-10-13
KR102578926B1 (ko) 2023-09-15
CN112469905A (zh) 2021-03-09

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