JPH07225036A - Grill for blower - Google Patents

Grill for blower

Info

Publication number
JPH07225036A
JPH07225036A JP1828394A JP1828394A JPH07225036A JP H07225036 A JPH07225036 A JP H07225036A JP 1828394 A JP1828394 A JP 1828394A JP 1828394 A JP1828394 A JP 1828394A JP H07225036 A JPH07225036 A JP H07225036A
Authority
JP
Japan
Prior art keywords
grill
blower
bar
submolded
bars
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
JP1828394A
Other languages
Japanese (ja)
Inventor
Chiaki Azuma
千章 東
Takashi Sugio
孝 杉尾
Yoshiki Izumi
善樹 泉
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1828394A priority Critical patent/JPH07225036A/en
Publication of JPH07225036A publication Critical patent/JPH07225036A/en
Pending legal-status Critical Current

Links

Landscapes

  • Other Air-Conditioning Systems (AREA)
  • Air-Flow Control Members (AREA)

Abstract

PURPOSE:To reduce noise of an entire blower by forming a plurality of grill sash bars by filling submolded part in a groove of a main molded part and increasing a thickness without generating a recess on a surface of the grill in the safety grill arranged in a blowing air diffuser. CONSTITUTION:A grill for a blower is disposed in a blowing air diffuser to obtain security by surrounding a supply fan and a duct. The grill is formed by mounting a plurality of grill sash bars 1 of an elliptical section made of thermoplastic synthetic resin at a predetermined interval at a vertical sash bar 2. In this case, the bars 1 are formed of both main and submolded parts 3, 4, and the submolded part 4 is filled in a groove 3a formed in a mold removing direction of molds of the part 3. Thus, the grill can be increased in thickness without generating a recess (shrinkage) on the surface of the bar 1. Accordingly, since a pitch is increased to reduce number of sound sources, noise of entire blower is decreased.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は空気調和機の室外機、送
風ダクト等、保安上、送風ファンおよびダクトを囲まな
ければならない機器に利用される送風装置のグリルに関
するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a grill for an air blower used for equipment such as an outdoor unit of an air conditioner, a blower duct, etc., which must surround the blower fan and the duct for safety reasons.

【0002】[0002]

【従来の技術】従来の送風装置のグリルを有する空気調
和機の室外機について、添付図面とともに説明する。
2. Description of the Related Art An outdoor unit of an air conditioner having a conventional grill of a blower will be described with reference to the accompanying drawings.

【0003】図3に示すように、空気調和機の室外機は
熱交換器5と外装板6で囲まれた空間に羽根車7と羽根
車7を駆動するモータ8からなる送風手段が収納されて
おり、羽根車7の周囲にはオリフィス9が設けられてい
る。外装板6の羽根車7の下流側に面する部分には吹出
し口10が設けられ、その外側にはグリル11が取り付
けられている。モータ8はモータ支持台12によって、
外装板6に固定されている。
As shown in FIG. 3, in the outdoor unit of the air conditioner, an air blower including an impeller 7 and a motor 8 for driving the impeller 7 is housed in a space surrounded by the heat exchanger 5 and the exterior plate 6. An orifice 9 is provided around the impeller 7. An outlet 10 is provided in a portion of the exterior plate 6 facing the downstream side of the impeller 7, and a grill 11 is attached to the outside thereof. The motor 8 is supported by the motor support 12
It is fixed to the exterior plate 6.

【0004】このような構造において、外部空気はモー
タ8に直結された羽根車7の回転により、熱交換器5の
側から空気を吸込み、吹出し口10を通してグリル11
から外部へ吹き出される。
In such a structure, the external air sucks the air from the side of the heat exchanger 5 by the rotation of the impeller 7 directly connected to the motor 8, and the grill 11 through the outlet 10.
Is blown from the outside.

【0005】従来、このグリル11は図4に示すような
円形の断面形状を有する針金からなるグリル桟11a、
あるいは図5に示すような熱可塑性合成樹脂で成形可能
な範囲内で最大肉厚部を有する略楕円形の断面形状のグ
リル桟11bを有していた。なお、グリル桟11a,1
1bの断面サイズは小さければ開口率が増加するため通
風抵抗が減少し、大きければピッチが増えて音源の数が
減少するため低騒音になると考えられている。
Conventionally, this grill 11 has a grill bar 11a made of wire having a circular cross section as shown in FIG.
Alternatively, as shown in FIG. 5, the grille bar 11b has a substantially elliptical cross-sectional shape having a maximum thickness portion within a range that can be molded with a thermoplastic synthetic resin. The grill bars 11a, 1
It is considered that if the cross-sectional size of 1b is small, the ventilation ratio decreases because the aperture ratio increases, and if it is large, the pitch increases and the number of sound sources decreases, resulting in low noise.

【0006】[0006]

【発明が解決しようとする課題】しかしながら、前記厚
さの厚い部分がある略楕円形の断面形状を有するグリル
桟11bでは熱可塑性合成樹脂であるため肉厚を厚くす
るとグリル表面にくぼみ(ヒケ)ができ、グリルの外観
が悪くなり、また使用時に前記羽根車7から吹き出され
る空気の流れがグリル桟11b表面から剥離し、剥離音
が高くなる。またグリル桟11bのくぼみ(ヒケ)はグ
リル桟11bの肉厚を厚くすると大きくなるので、グリ
ルの最大肉厚は大きくできず、グリルの厚さが薄くなっ
て、ピッチが減少し音源の数が増え騒音が高くなるとい
う課題を有していた。
However, since the grill bar 11b having a substantially elliptical cross-sectional shape having the thick portion is made of thermoplastic synthetic resin, when the wall thickness is increased, a depression (sink) is formed on the grill surface. As a result, the appearance of the grill is deteriorated, and the flow of air blown out from the impeller 7 is peeled off from the surface of the grill bar 11b during use, and the peeling noise is increased. Further, since the depressions (sinks) of the grill bar 11b increase as the wall thickness of the grill bar 11b increases, the maximum wall thickness of the grill cannot be increased, and the thickness of the grill decreases and the pitch decreases and the number of sound sources increases. There was a problem that it increased and the noise increased.

【0007】本発明は上記従来の課題を解決するもの
で、前述の騒音を極力抑える送風装置のグリルを提供す
ることを目的とするものである。
The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a grill for an air blower that suppresses the above noise as much as possible.

【0008】[0008]

【課題を解決するための手段】前記課題を解決するため
に、本発明は送風手段により吹き出される空気の吹出し
口に設けられ、熱可塑性合成樹脂からなる複数のグリル
桟を有するとともに、前記グリル桟は主成形部と副成形
部からなり、前記主成形部には成形金型の型抜き方向に
溝部を有し、前記副成形部は前記溝部に充填成形したも
のである。
In order to solve the above-mentioned problems, the present invention has a plurality of grill bars made of thermoplastic synthetic resin, which are provided at the outlet of the air blown by the blowing means, The crosspiece is composed of a main molding portion and a sub-molding portion, and the main molding portion has a groove portion in the mold removing direction of the molding die, and the sub-molding portion is formed by filling and molding the groove portion.

【0009】[0009]

【作用】本発明はグリル桟の主成形部に溝部を形成する
ことにより、グリル桟表面にくぼみ(ヒケ)を作らずに
肉厚を厚くできるため、ピッチが増え音源の数が減って
低騒音になるとともに、グリル桟表面がなめらかである
ため送風手段から吹き出される空気の流れに対し剥離音
を抑えることができる。
According to the present invention, since the groove is formed in the main molding portion of the grill bar, the wall thickness can be increased without forming a depression on the surface of the grill bar, so that the pitch is increased and the number of sound sources is reduced to reduce the noise. In addition, since the surface of the grille bar is smooth, peeling noise can be suppressed against the flow of air blown out from the blowing means.

【0010】[0010]

【実施例】以下本発明の実施例を図面とともに説明す
る。
Embodiments of the present invention will be described below with reference to the drawings.

【0011】図2は前述した略楕円形等の断面形状の水
平のグリル桟13の列を有するグリルを外装板前面に取
り付けた図であり、図3に示したものと同様の構成には
同様の番号を付し説明を省略する。
FIG. 2 is a view in which a grill having a row of horizontal grill bars 13 having a cross-sectional shape such as the above-mentioned substantially elliptical shape is attached to the front surface of the exterior plate, and the same configuration as that shown in FIG. 3 is the same. No. and the description is omitted.

【0012】図1は本発明の一実施例である送風装置の
グリルの詳細図であり、図において1は厚さの厚い部分
がある流線形の略楕円断面形状のグリル桟、2はグリル
桟1の保持のための鉛直桟で、グリル桟1と直交し、一
体となって形成した熱可塑性樹脂からなり、各グリル桟
1は成形時に外周を形成する主成形部3を溝部3aを有
する凹型形状で固定した後、溝部3a内部に熱可塑性合
成樹脂からなる副成形部4を射出して成形されている。
FIG. 1 is a detailed view of a grill of an air blower according to an embodiment of the present invention. In FIG. 1, reference numeral 1 is a streamlined substantially elliptical cross-section grill bar having a thick portion, and 2 is a grill bar. 1 is a vertical rail for holding 1 and is made of a thermoplastic resin that is formed integrally with and orthogonal to the grill rail 1, and each grill rail 1 has a main molding portion 3 forming an outer periphery at the time of molding and a concave shape having a groove portion 3a. After being fixed in shape, a sub-molding part 4 made of a thermoplastic synthetic resin is injected and molded inside the groove 3a.

【0013】上記グリル桟1は溶融した熱可塑性合成樹
脂を凹型形状の金型内に注入した後、冷却硬化して主成
形部3を形成した後、内部に熱可塑性合成樹脂からなる
副成形部4を射出して形成するため、厚さの厚い部分が
十分とれ、表面がなめらかである。
The grill bar 1 is formed by injecting a molten thermoplastic synthetic resin into a concave mold and then cooling and hardening to form a main molding portion 3, and then a sub molding portion made of a thermoplastic synthetic resin therein. Since 4 is injected and formed, the thick portion can be sufficiently removed and the surface is smooth.

【0014】上記グリルではグリルの厚さを厚くできて
音源の数が減少し、さらに十分な厚さがとれるためグリ
ル表面での剥離が減少するため、室外機全体としての低
騒音化を図れる。
In the above-mentioned grill, the thickness of the grill can be increased, the number of sound sources can be reduced, and the sufficient thickness can be taken to reduce peeling on the surface of the grill. Therefore, the noise of the outdoor unit as a whole can be reduced.

【0015】なお、本実施例では厚肉のグリル桟を水平
な桟として適用したが、厚肉のグリルを鉛直桟に適用し
ても同等の効果が得られる。また本実施例では主成形部
3に形成する溝部3aは各グリル桟1において一箇のみ
であるが、複数の溝部3aを形成し、各溝部3aに副成
形部を充填する構成も本願発明に含まれるものである。
Although the thick grille bar is applied as a horizontal bar in this embodiment, the same effect can be obtained by applying the thick grille bar to the vertical bar. Further, in the present embodiment, only one groove 3a is formed in the main molding part 3 in each grill bar 1, but a configuration in which a plurality of grooves 3a are formed and each groove 3a is filled with a sub-molding part is also applicable to the present invention. It is included.

【0016】[0016]

【発明の効果】本発明は上記の説明から明らかなよう
に、送風手段により吹き出される空気の吹出し口に設け
られ、熱可塑性合成樹脂からなる複数のグリル桟を有す
るとともに、前記グリル桟は主成形部と副成形部からな
り、前記主成形部には成形金型の型抜き方向に溝部を有
し、前記副成形部は前記溝部に充填成形することによ
り、グリル桟の面にくぼみ(ヒケ)を作らずにグリルの
厚さを厚くできることからピッチが増え音源の数が減
り、室外機全体として低騒音化が図れる。
As is apparent from the above description, the present invention has a plurality of grill bars made of thermoplastic synthetic resin, which are provided at the outlet of the air blown by the blowing means, and the grill bars are mainly The main molding part has a groove portion in the mold removing direction of the molding die, and the sub-molding portion is filled and molded in the groove portion to form a depression (sink mark) on the surface of the grille bar. ) Can be made thicker without increasing the pitch to increase the pitch and reduce the number of sound sources, reducing the noise of the outdoor unit as a whole.

【図面の簡単な説明】[Brief description of drawings]

【図1】本発明の一実施例における送風装置のグリルの
断面詳細図
FIG. 1 is a detailed cross-sectional view of a grill of a blower according to an embodiment of the present invention.

【図2】同グリルを取り付けた空気調和機室外機の断面
FIG. 2 is a cross-sectional view of the air conditioner outdoor unit with the grill attached.

【図3】従来の送風装置のグリルを取り付けた空気調和
機室外機の断面図
FIG. 3 is a cross-sectional view of an air conditioner outdoor unit to which a grill of a conventional blower is attached.

【図4】従来の送風装置のグリルの断面詳細図FIG. 4 is a detailed cross-sectional view of a grill of a conventional blower.

【図5】従来の他の送風装置のグリルの断面詳細図FIG. 5 is a detailed sectional view of a grill of another conventional blower.

【符号の説明】[Explanation of symbols]

1 グリル桟 3 主成形部 3a 溝部 4 副成形部 1 Grill bar 3 Main forming part 3a Groove part 4 Sub forming part

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】送風手段により吹き出される空気の吹出し
口に設けられ、熱可塑性合成樹脂からなる複数のグリル
桟を有するとともに、前記グリル桟は主成形部と副成形
部からなり、前記主成形部には成形金型の型抜き方向に
溝部を有し、前記副成形部は前記溝部に充填成形されて
いる送風装置のグリル。
1. A plurality of grill bars, which are provided at the outlet of the air blown by the blower means and are made of a thermoplastic synthetic resin, are provided with a main molding part and a sub-molding part, and the main molding is performed. A grill for an air blower in which a groove portion is formed in a part of the molding die, and the sub-molding portion is filled in the groove portion.
JP1828394A 1994-02-15 1994-02-15 Grill for blower Pending JPH07225036A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1828394A JPH07225036A (en) 1994-02-15 1994-02-15 Grill for blower

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1828394A JPH07225036A (en) 1994-02-15 1994-02-15 Grill for blower

Publications (1)

Publication Number Publication Date
JPH07225036A true JPH07225036A (en) 1995-08-22

Family

ID=11967313

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1828394A Pending JPH07225036A (en) 1994-02-15 1994-02-15 Grill for blower

Country Status (1)

Country Link
JP (1) JPH07225036A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010060242A (en) * 2008-09-05 2010-03-18 Sanyo Electric Co Ltd Outdoor unit of air conditioner
JP2016008783A (en) * 2014-06-25 2016-01-18 パナソニックIpマネジメント株式会社 Blower and outdoor unit
JP2017205735A (en) * 2016-05-20 2017-11-24 三菱日立パワーシステムズ株式会社 Filter, intake duct, and gas turbine
EP3695169A4 (en) * 2017-11-13 2020-11-18 Samsung Electronics Co., Ltd. Blower and outdoor unit of air conditioner having the same
US11067301B2 (en) 2017-11-13 2021-07-20 Samsung Electronics Co., Ltd. Blower and outdoor unit of air conditioner having the same

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010060242A (en) * 2008-09-05 2010-03-18 Sanyo Electric Co Ltd Outdoor unit of air conditioner
JP2016008783A (en) * 2014-06-25 2016-01-18 パナソニックIpマネジメント株式会社 Blower and outdoor unit
JP2017205735A (en) * 2016-05-20 2017-11-24 三菱日立パワーシステムズ株式会社 Filter, intake duct, and gas turbine
EP3695169A4 (en) * 2017-11-13 2020-11-18 Samsung Electronics Co., Ltd. Blower and outdoor unit of air conditioner having the same
US11067301B2 (en) 2017-11-13 2021-07-20 Samsung Electronics Co., Ltd. Blower and outdoor unit of air conditioner having the same

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