JP2020016175A - Drain pump - Google Patents

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JP2020016175A
JP2020016175A JP2018138988A JP2018138988A JP2020016175A JP 2020016175 A JP2020016175 A JP 2020016175A JP 2018138988 A JP2018138988 A JP 2018138988A JP 2018138988 A JP2018138988 A JP 2018138988A JP 2020016175 A JP2020016175 A JP 2020016175A
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Japan
Prior art keywords
plate portion
mounting
drain pump
pump
drain
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JP2018138988A
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JP6950962B2 (en
Inventor
克司 佐藤
Katsushi Sato
克司 佐藤
友也 加藤
Tomoya Kato
友也 加藤
永 佐藤
Hisashi Sato
永 佐藤
雄太 西山
Yuta Nishiyama
雄太 西山
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Fujikoki Corp
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Fujikoki Corp
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Priority to JP2018138988A priority Critical patent/JP6950962B2/en
Priority to CN201980048414.2A priority patent/CN112469905A/en
Priority to PCT/JP2019/026760 priority patent/WO2020022030A1/en
Priority to KR1020217004964A priority patent/KR102578926B1/en
Publication of JP2020016175A publication Critical patent/JP2020016175A/en
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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
    • 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

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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

To provide a drain pump that can effectively reduce propagation of vibration to an indoor unit while suppressing the number of components and cost.SOLUTION: A corrugated plate part 37 that elastically deforms to prevent propagation of vibration to a fitting-top plate 50 is provided to a fitting part 32 for fixedly fitting a drain pump 1 to the fitting-top plate. The corrugated plate part 37 elastically deforms to absorb and relax vibration generated by a motor 40.SELECTED DRAWING: Figure 3

Description

本発明は、排水ポンプに係り、例えば、空気調和機の室内ユニットで用いられ、熱交換器で凝縮した水を受け入れるドレンパン内のドレン水を室外に排出するのに好適な排水ポンプに関する。   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 that receives water condensed in a heat exchanger to the outside.

室内の天井に埋込むタイプの空気調和機の室内ユニットにおいては、冷房運転時に空気中の水分が凝縮して熱交換器に付着し、付着した水分により生じた水滴が熱交換器の下方に設けられるドレンパン内に滴下する。このドレンパン内に溜まったドレン水を室内ユニット外部（室外）に排出するために、排水ポンプ（ドレンポンプともいう）が用いられる。   In an indoor unit of an air conditioner that is embedded in the ceiling of a room, moisture in the air condenses during cooling operation and adheres to the heat exchanger, and water droplets generated by the adhered moisture are provided below the heat exchanger. Into a drain pan. 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.

このような排水ポンプ、及び該排水ポンプが装備された空気調和機の主要部の従来例を図６〜図８に示す。図６及び図７（Ａ）、（Ｂ）に示す従来例の排水ポンプ１０１は、回転羽根を収容するポンプ室（いずれも不図示）と、ポンプ室の下部に設けられた管状の吸込口１１２と、ポンプ室から側方に向けて延びる管状の吐出口１１３とが形成された合成樹脂製のハウジング１１０を備える。ハウジング１１０の上部（上部開口）には、シール部材としてのＯリング（不図示）を介して円筒状の合成樹脂製の下カバー（ハウジングカバーともいう）１２０が取り付けられている。下カバー１２０は、ハウジング１１０に設けられたスナップフィットアーム１１１の弾性力を利用したスナップフィット機能によりハウジング１１０に着脱自在に取り付けられる。下カバー１２０の上部には、リード線１４２を引き出すためのリード線引出部１４１を外側に露出させるようにして、ステータ及びロータ等からなるモータ１４０が搭載されている。モータ１４０の駆動軸は、ポンプ室内に配置された回転羽根の回転軸に連結されている。下カバー１２０の上部（上部開口）には、モータ１４０の上側を覆う天井部付き短円筒状の合成樹脂製の上カバー（モータカバーともいう）１３０が取り付けられている。上カバー１３０は、上カバー１３０に設けられたスナップフィットアーム１３１の弾性力を利用したスナップフィット機能により下カバー１２０に着脱自在に取り付けられる。上カバー１３０の上部（天井部）には、当該排水ポンプ１０１を室内ユニット内の取付天板１５０に取り付けるための取付部１３２が設けられている。   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 7B has a pump chamber (both not shown) for accommodating the rotating blades, and a tubular suction port 112 provided at a lower portion of the pump chamber. And a synthetic resin housing 110 in which a tubular discharge port 113 extending laterally from the pump chamber is formed. 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. At the upper part (ceiling part) of 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.

図示従来例の排水ポンプ１０１では、上カバー１３０の上部（天井部）の外周寄りの３箇所に、角度が不等ピッチになった取付部１３２が形成されている。各取付部１３２の上端から水平方向外側に延びる固定板部１３５には、締結固定用のねじ１６０が挿入される挿通穴１３６が形成されている。この排水ポンプ１０１は、図８に示すように、固定板部１３５（の上面）と取付天板１５０（の下面）との間に防振用ゴム（ゴムブッシュともいう）１５５を挟んだ状態で、挿通穴１３６を通してねじ１６０を取付天板１５０（に設けられたねじ穴）にねじ止めする（締め付ける）ことにより、取付天板１５０に固定（締結固定）される。   In the illustrated conventional drain pump 101, 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. As shown in FIG. 8, 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.

この排水ポンプ１０１では、図８に示すように、取付部１３２によって空気調和機の室内ユニットの取付天板１５０に対して固定され、モータ１４０によりハウジング１１０内（ポンプ室）に収容された回転羽根が回転されると、ドレンパン１９０に溜まったドレン水が吸込口１１２から吸い上げられ、ポンプ室を介して吐出口１１３から吐出される。吐出されたドレン水は、吐出口１１３に接続された配管１１３Ａを介して一旦上方に導かれた後、側方に導かれて室外に排水される（例えば、下記特許文献１、２等を併せて参照）。   In the drain pump 101, as shown in FIG. 8, 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).

特開２０１２−０８２７９０号公報JP 2012-082790 A 特開２０１０−２７５９７２号公報JP 2010-275972 A

ところで、この種のモータを使用した排水ポンプは、モータから発生する振動が空気調和機の室内ユニットに伝播して騒音を出し、静音性を悪化させる。そのため、前述したように、排水ポンプを室内ユニットに取り付ける際に、防振用ゴム等を排水ポンプの取付部と室内ユニットの取付天板との間に配置し、振動の伝播を低減している。   By the way, in a drain pump using a motor of this type, the 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. .

しかしながら、上記従来の排水ポンプでは、排水ポンプの取付部と室内ユニットの取付天板との間に防振用ゴム等を配置する必要があり、部品点数や部品コストが高騰する懸念がある。近年は、部品点数や部品コスト削減のため、防振用ゴム等を省略し、排水ポンプ（の取付部）を室内ユニット（の取付天板）に直接取り付ける事例が増えており、その場合、排水ポンプの振動が室内ユニットに伝達し、共振して大きな騒音が発生することがある。   However, in the above-mentioned conventional drain pump, it is necessary to arrange a vibration-proof rubber or the like between the mounting portion of the drain pump and the mounting top plate of the indoor unit, and there is a concern that the number of parts and the cost of parts will increase. In recent years, in order to reduce the number of parts and the cost of parts, the use of anti-vibration rubber, etc. has been omitted and the drain pump (the mounting part) has been directly mounted on the indoor unit (the mounting top plate). The vibration of the pump may be transmitted to the indoor unit and resonate to generate loud noise.

本発明は、上記事情に鑑みてなされたもので、その目的とするところは、部品点数や部品コストを抑えつつ、室内ユニットへの振動伝播を効果的に低減することのできる排水ポンプを提供することにある。   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.

上記課題を解決するために、本発明に係る排水ポンプは、基本的に、モータで回転されることにより水を吸い上げて外部に排出する回転羽根が収容された排水ポンプであって、前記排水ポンプを取付部材に取付固定するための取付部を有し、該取付部に、弾性変形によって前記取付部材への振動伝播を防止する波状板部が設けられていることを特徴としている。   In order to solve the above-mentioned problems, 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.

好ましい態様では、前記波状板部は、前記取付部における前記取付部材に対する対接面に対して垂直方向に波打つ形状を有する。   In a preferred aspect, the corrugated plate portion has a shape that undulates in a direction perpendicular to a surface of the mounting portion facing the mounting member.

更に好ましい態様では、前記排水ポンプの上部を覆う上カバーを有し、前記取付部は、前記上カバーから上向きに立ち上がる立板部と、該立板部から外向きに延在するとともに前記取付部材に対接する対接面を持つ固定板部とを有し、前記固定板部における前記立板部側の根元部分に前記波状板部が設けられる。   In a further preferred aspect, 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. And 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.

別の好ましい態様では、前記波状板部は、前記取付部における前記取付部材に対する対接面に平行方向に波打つ形状を有する。   In another preferred aspect, the corrugated plate portion has a shape that undulates in a direction parallel to a surface of the mounting portion facing the mounting member.

更に好ましい態様では、前記排水ポンプの上部を覆う上カバーを有し、前記取付部は、前記上カバーから上向きに立ち上がる立板部と、該立板部の外側で該立板部に対向するように配置される対向板部と、該対向板部から外向きに延在するとともに前記取付部材に対接する対接面を持つ固定板部とを有し、前記立板部と前記対向板部とを繋ぐように前記波状板部が設けられる。   In a further preferred aspect, 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.

本発明によれば、排水ポンプを取付部材に取付固定するための取付部に、弾性変形によって取付部材への振動伝播を防止する波状板部が設けられ、その波状板部の弾性変形によってモータから発生する振動が吸収・緩和されるので、部品点数や部品コストを増やすことなく、室内ユニットへの振動伝播を効果的に低減することができ、もって、空気調和機の騒音を低減することができる。   According to the present invention, 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. .

本発明に係る排水ポンプの第１実施形態を示す斜視図。BRIEF DESCRIPTION OF THE DRAWINGS The perspective view which shows 1st Embodiment of the drainage pump which concerns on this invention. 図１に示される排水ポンプを示し、（Ａ）は平面図、（Ｂ）は（Ａ）のＵ−Ｕ矢視断面図。2A is a plan view, and FIG. 2B is a cross-sectional view taken along the line U-U in FIG. 本発明に係る排水ポンプの第１実施形態が取付天板に取り付けられた空気調和機の主要部を示す要部拡大図。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. 本発明に係る排水ポンプの第２実施形態を示す斜視図。The perspective view showing the 2nd embodiment of the drainage pump concerning the present invention. 図４に示される排水ポンプの平面図。The top view of the drainage pump shown in FIG. 従来例の排水ポンプを示す斜視図。FIG. 9 is a perspective view showing a conventional drain pump. 図６に示される排水ポンプを示し、（Ａ）は平面図、（Ｂ）は（Ａ）のＵ−Ｕ矢視断面図。6A is a plan view, and FIG. 7B is a cross-sectional view taken along the line U-U of FIG. 従来例の排水ポンプが取付天板に取り付けられた空気調和機の主要部を示す要部拡大図。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.

以下、本発明の実施形態を図面を参照して説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

なお、各図において、部材間に形成される隙間や部材間の離隔距離等は、発明の理解を容易にするため、また、作図上の便宜を図るため、誇張して描かれている場合がある。   In each of the drawings, gaps formed between members, separation distances between members, and the like may be exaggerated for ease of understanding of the invention and for convenience of drawing. is there.

［第１実施形態］
図１及び図２（Ａ）、（Ｂ）は、本発明に係る排水ポンプの第１実施形態を示し、図１は斜視図、図２（Ａ）は平面図、図２（Ｂ）は図２（Ａ）のＵ−Ｕ矢視断面図である。また、図３は、本発明に係る排水ポンプの第１実施形態が取付天板に取り付けられた空気調和機の主要部を示す要部拡大図である。なお、図２（Ａ）は、図１に示される排水ポンプ１からモータ４０を取り外した状態を示している。 [First Embodiment]
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, and FIG. It is U-U arrow sectional drawing of 2 (A). 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 in which the motor 40 is removed from the drain pump 1 shown in FIG.

図示実施形態の排水ポンプ１は、ドレンパン９０に溜まったドレン水を吸い上げて室外に排水するためのものであり、上カバー３０に設けられた取付部３２以外の基本構成（ハウジング、下カバー、回転羽根、モータ等の構成）は図６〜図８に示される従来例の排水ポンプ１０１とほぼ同じである。したがって、図６〜図８に基づき前述した従来例の排水ポンプ１０１の各部に対応する部分には同様の符号（１００を差し引いた符号）を付して詳細説明を省略し、以下においては、本発明の特徴部分である取付部３２の構成を重点的に説明する。   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, motors, 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. 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.

なお、図示実施形態の排水ポンプ１の基本構成については、上記特許文献１、２を参照することにより、その開示を本明細書に組み込む。   The disclosure of the basic configuration of the drain pump 1 of the illustrated embodiment is incorporated in the present specification by referring to Patent Documents 1 and 2.

本実施形態の排水ポンプ１は、前述した従来例の排水ポンプ１０１と同様構成の、ハウジング１０、下カバー２０、及び上カバー３０を有し、それらがスナップフィットアーム１１、３１の弾性力を利用したスナップフィット機能により着脱自在に取り付けられている。ハウジング１０内（ポンプ室）には回転羽根が回転自在に収容され、下カバー２０及び上カバー３０の内側にはモータ４０が配設されている。モータ４０の上側（すなわち、排水ポンプ１の上部）を覆う上カバー３０の上部（天井部）の外周寄りの３箇所には、周方向に不等ピッチに配置された脚状の取付部３２が一体成形により形成されている。   The drain pump 1 of the present embodiment has a housing 10, a lower cover 20, and an upper cover 30 having the same configuration as the above-described drain pump 101 of the related art, 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.

本実施形態の排水ポンプ１において、各取付部３２は、上カバー３０の上部（天井部）の外周付近から上向き（垂直方向）に立ち上がる概略矩形板状の立板部３３と、立板部３３の上端縁部から外向き（水平方向）に延在する固定板部３５とを有する。固定板部３５の上面（平坦面）は、取付部材としての取付天板５０（の下面）に対接する対接面となっており、固定板部３５の外端付近に、締結固定用のねじ（締結部材）６０が挿入される挿通穴３６が形成されている。   In the drainage pump 1 of the present embodiment, 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.

また、固定板部３５における立板部３３側の根元部分に、固定板部３５及び立板部３３より薄板とされ、上下方向（換言すれば、固定板部３５の上面であって取付天板５０に対する対接面に対して垂直方向）に波打つ形状の弾性変形可能な波状板部３７が形成されている。本例において、波状板部３７は、固定板部３５の板厚の範囲内で波打つように形成されている（特に、図２（Ｂ）参照）。   Further, 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. In this example, 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).

また、各取付部３２の周方向両側部には、側面視略三角形状の一対のリブ板部３９が一体的に形成（一体成形）されている。より詳細には、各取付部３２に対応する一対のリブ板部３９は立板部３３の周方向両端に位置しており、それぞれが上カバー３０の上部の面から上方に立板部３３の上部に至る位置まで立設している。   Further, 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.

この排水ポンプ１は、図３に示すように、固定板部３５（の上面）を取付天板５０（の下面）に直接（つまり、防振用ゴム等を挟むことなく）当接させた状態で、挿通穴３６を通してねじ６０を取付天板５０（に設けられたねじ穴）にねじ止めする（締め付ける）ことにより、取付天板５０に固定（締結固定）される。   As shown in FIG. 3, 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.

かかる構成の排水ポンプ１では、前述した従来例の排水ポンプ１０１と同様に、取付部３２によって空気調和機の室内ユニットの取付天板５０に対して固定され、モータ４０によりハウジング１０内（ポンプ室）に収容された回転羽根が回転されると、ドレンパン９０に溜まったドレン水が吸込口１２から吸い上げられ、ポンプ室を介して吐出口１３から吐出される。吐出されたドレン水は、吐出口１３に接続された配管１３Ａを介して室外に排水される。   In the drain pump 1 having such a configuration, similarly to the drain pump 101 of the conventional example described above, 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). When 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.

その際、モータ４０から発生する振動（縦方向及び横方向の振動）が取付部３２に伝わるが、その振動は当該取付部３２に設けられた波状板部３７が弾性変形することによって（空気調和機の室内ユニットの取付天板５０に伝わる前に）吸収・緩和され、空気調和機の室内ユニットの取付天板５０への振動伝播が低減されることになる。   At this time, 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.

このように、本実施形態の排水ポンプ１においては、排水ポンプ１を取付天板５０に取付固定するための取付部３２に、弾性変形によって取付天板５０への振動伝播を防止する波状板部３７が設けられ、その波状板部３７の弾性変形によってモータ４０から発生する振動が吸収・緩和されるので、部品点数や部品コストを増やすことなく、室内ユニットへの振動伝播を効果的に低減することができ、もって、空気調和機の騒音を低減することができる。   As described above, in the drainage pump 1 according to the present embodiment, 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.

［第２実施形態］
図４及び図５は、本発明に係る排水ポンプの第２実施形態を示し、図４は斜視図、図５は平面図である。なお、図５は、図４に示される排水ポンプ２からモータ４０を取り外した状態を示している。 [Second embodiment]
4 and 5 show a second embodiment of the drain pump according to the present invention. FIG. 4 is a perspective view, and 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.

図示第２実施形態の排水ポンプ２は、上記第１実施形態の排水ポンプ１と、取付部３２以外はほぼ同じ構成である。そのため、上記第１実施形態の排水ポンプ１の各部に対応する部分には共通の符号を付して重複説明を省略し、以下においては、相違点を重点的に説明する。   The drain pump 2 of the second embodiment shown in the drawing has substantially the same configuration as the drain 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.

本第２実施形態の排水ポンプ２は、上記第１実施形態の排水ポンプ１と同様に、モータ４０の上側（すなわち、排水ポンプ１の上部）を覆う上カバー３０の上部（天井部）の外周寄りの３箇所に、周方向に不等ピッチに配置された脚状の取付部３２が一体成形により形成されている。   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.

本実施形態の排水ポンプ２において、各取付部３２は、上カバー３０の上部（天井部）の外周付近から上向き（垂直方向）に立ち上がる概略矩形板状の立板部３３と、該立板部３３の外側で該立板部３３に対向するように配置される概略矩形板状の対向板部３４と、該対向板部３４の上端縁部から外向き（水平方向）に延在する固定板部３５とを有する。そして、立板部３３の一側部もしくはその近傍と対向板部３４の一側部もしくはその近傍とを繋ぐように、立板部３３、対向板部３４、及び固定板部３５より薄板とされ、横方向（換言すれば、固定板部３５の上面であって取付天板５０に対する対接面に対して平行方向）に波打つ形状の弾性変形可能な波状板部３８が設けられている。図示例では、対向板部３４の（上下方向の）高さは、立板部３３の高さより若干短くされ、対向板部３４の（上下方向の）高さの全長にわたって前記波状板部３８が形成されている。固定板部３５の上面（平坦面）は、取付部材としての取付天板５０（の下面）に対接する対接面となっており、固定板部３５の外端付近に、締結固定用のねじ（締結部材）６０が挿入される挿通穴３６が形成されている。   In the drain pump 2 of the present embodiment, 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. In the illustrated example, 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.

また、各取付部３２の周方向両側部には、側面視略三角形状の一対のリブ板部３９が一体的に形成（一体成形）されている。より詳細には、各取付部３２に対応する一対のリブ板部３９は立板部３３の周方向両端に位置しており、それぞれが上カバー３０の上部の面から上方に立板部３３の上部に至る位置まで立設している。   Further, 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.

かかる構成の排水ポンプ２においても、上記第１実施形態の排水ポンプ１と同様に、モータ４０から発生する振動（縦方向及び横方向の振動）が取付部３２に伝わるが、その振動は当該取付部３２に設けられた波状板部３８が弾性変形することによって（空気調和機の室内ユニットの取付天板５０に伝わる前に）吸収・緩和され、空気調和機の室内ユニットの取付天板５０への振動伝播が低減されることになる。   In 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.

このように、本実施形態の排水ポンプ２においても、排水ポンプ１を取付天板５０に取付固定するための取付部３２に、弾性変形によって取付天板５０への振動伝播を防止する波状板部３８が設けられ、その波状板部３８の弾性変形によってモータ４０から発生する振動が吸収・緩和されるので、部品点数や部品コストを増やすことなく、室内ユニットへの振動伝播を効果的に低減することができ、もって、空気調和機の騒音を低減することができる。   As described above, also in the drainage pump 2 of the present embodiment, 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.

なお、排水ポンプ１、２に設けられる取付部３２の個数や配置構成、形成材料等、各取付部３２に設けられる波状板部３７、３８の形状等は、上記実施形態に限られないことは勿論である。   It should be noted that the shape, etc. of the corrugated plate portions 37, 38 provided on each mounting portion 32, such as the number, arrangement configuration, forming material, etc. of the mounting portions 32 provided on the drainage pumps 1, 2 are not limited to the above embodiment. Of course.

また、上述した実施形態では、排水ポンプ１、２の全ての取付部３２に波状板部３７、３８が設けられているが、全ての取付部３２に波状板部３７、３８を設けなくてもよい（換言すれば、一部の取付部３２について波状板部を省略してもよい）ことは勿論である。   Further, in the above-described embodiment, 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).

さらに、上述した各実施形態では、複数の波状板部３７、３８の何れもが同じ形状を有しているが、本発明はこれに限られるものではなく、異なる形状の波状板部３７、３８が混在するように組み合わされていてもよい。   Further, in each of the above-described embodiments, 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.

１ 排水ポンプ（第１実施形態）
２ 排水ポンプ（第２実施形態）
１０ ハウジング
１１ スナップフィットアーム
１２ 吸込口
１３ 吐出口
１３Ａ 配管
２０ 下カバー
３０ 上カバー
３１ スナップフィットアーム
３２ 取付部
３３ 立板部
３４ 対向板部（第２実施形態）
３５ 固定板部
３６ 挿通穴
３７ 波状板部（第１実施形態）
３８ 波状板部（第２実施形態）
３９ リブ板部
４０ モータ
５０ 取付天板（取付部材）
６０ ねじ（締結部材）
９０ ドレンパン 1 drainage pump (first embodiment)
2 drainage pump (second embodiment)
DESCRIPTION OF SYMBOLS 10 Housing 11 Snap fit arm 12 Suction port 13 Discharge port 13A Pipe 20 Lower cover 30 Upper cover 31 Snap fit arm 32 Mounting part 33 Standing plate part 34 Opposite plate part (2nd Embodiment)
35 fixing plate portion 36 insertion hole 37 corrugated plate portion (first embodiment)
38 Corrugated Plate (Second Embodiment)
39 rib plate 40 motor 50 mounting top plate (mounting member)
60 screw (fastening member)
90 drain pan

Claims (5)

モータで回転されることにより水を吸い上げて外部に排出する回転羽根が収容された排水ポンプであって、
前記排水ポンプを取付部材に取付固定するための取付部を有し、該取付部に、弾性変形によって前記取付部材への振動伝播を防止する波状板部が設けられていることを特徴とする排水ポンプ。 A drain pump in which rotating blades for sucking up water and being discharged to the outside by being rotated by a motor are housed,
A drain having a mounting portion for mounting and fixing the drain pump to a mounting member, wherein the mounting portion is provided with a corrugated plate portion that prevents vibration propagation to the mounting member by elastic deformation. pump. 前記波状板部は、前記取付部における前記取付部材に対する対接面に対して垂直方向に波打つ形状を有することを特徴とする請求項１に記載の排水ポンプ。   2. The drain pump according to claim 1, wherein the corrugated plate portion has a shape waving in a direction perpendicular to a surface of the attachment portion facing the attachment member. 3. 前記排水ポンプの上部を覆う上カバーを有し、
前記取付部は、前記上カバーから上向きに立ち上がる立板部と、該立板部から外向きに延在するとともに前記取付部材に対接する対接面を持つ固定板部とを有し、
前記固定板部における前記立板部側の根元部分に前記波状板部が設けられていることを特徴とする請求項２に記載の排水ポンプ。 Having an upper cover covering an upper part of the drainage pump,
The mounting portion includes a standing plate portion that rises upward from the upper cover, and a fixed plate portion that extends outward from the standing plate portion and has a contact surface that contacts the mounting member,
The drainage pump according to claim 2, wherein the corrugated plate portion is provided at a root portion of the fixed plate portion on the side of the upright plate portion. 前記波状板部は、前記取付部における前記取付部材に対する対接面に平行方向に波打つ形状を有することを特徴とする請求項１に記載の排水ポンプ。   2. The drain pump according to claim 1, wherein the corrugated plate portion has a shape waving in a direction parallel to a surface of the attachment portion facing the attachment member. 3. 前記排水ポンプの上部を覆う上カバーを有し、
前記取付部は、前記上カバーから上向きに立ち上がる立板部と、該立板部の外側で該立板部に対向するように配置される対向板部と、該対向板部から外向きに延在するとともに前記取付部材に対接する対接面を持つ固定板部とを有し、
前記立板部と前記対向板部とを繋ぐように前記波状板部が設けられていることを特徴とする請求項４に記載の排水ポンプ。 Having an upper cover covering an upper part of the drainage pump,
The mounting portion includes a standing plate portion that rises upward from the upper cover, a facing plate portion that is arranged outside the standing plate portion to face the standing plate portion, and extends outward from the facing plate portion. Having a fixing plate portion having a contact surface that is in contact with the mounting member,
The drainage pump according to claim 4, wherein the corrugated plate portion is provided so as to connect the upright plate portion and the opposed plate portion.
JP2018138988A 2018-07-25 2018-07-25 Drainage pump Active JP6950962B2 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2018138988A JP6950962B2 (en) 2018-07-25 2018-07-25 Drainage pump
CN201980048414.2A CN112469905A (en) 2018-07-25 2019-07-05 Water discharge pump
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WO2023085301A1 (en) * 2021-11-11 2023-05-19 株式会社不二工機 Drainage pump

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WO2023085301A1 (en) * 2021-11-11 2023-05-19 株式会社不二工機 Drainage pump

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