JPH039089A - Muffling device for compressor - Google Patents
Muffling device for compressorInfo
- Publication number
- JPH039089A JPH039089A JP14282189A JP14282189A JPH039089A JP H039089 A JPH039089 A JP H039089A JP 14282189 A JP14282189 A JP 14282189A JP 14282189 A JP14282189 A JP 14282189A JP H039089 A JPH039089 A JP H039089A
- Authority
- JP
- Japan
- Prior art keywords
- partition plate
- division
- protrusion
- welding
- edge
- 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
Links
- 238000005192 partition Methods 0.000 claims description 43
- 238000003466 welding Methods 0.000 claims description 34
- 230000003584 silencer Effects 0.000 claims description 5
- 229920003002 synthetic resin Polymers 0.000 claims description 5
- 239000000057 synthetic resin Substances 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 4
- 238000003825 pressing Methods 0.000 abstract description 7
- 230000002093 peripheral effect Effects 0.000 abstract description 4
- 238000007789 sealing Methods 0.000 abstract description 2
- 230000008021 deposition Effects 0.000 abstract 4
- 230000004927 fusion Effects 0.000 abstract 2
- 230000013011 mating Effects 0.000 abstract 2
- 230000030279 gene silencing Effects 0.000 description 4
- 229920001707 polybutylene terephthalate Polymers 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- -1 polybutylene terephthalate Polymers 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（イ〉産業上の利用分野
本発明は冷蔵庫やショーケース等に使用される圧縮機の
消音装置に係り、特に合成樹脂製の吸入側消音装置に関
する。DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application Field The present invention relates to a silencer for a compressor used in a refrigerator, a showcase, etc., and particularly relates to a suction-side silencer made of synthetic resin.
（口〉従来の技術
従来、この種の圧縮機の消音装置には、特開昭５９−４
３９１７号公報等に開示されているように、合成樹脂の
成形品からなる第１及び第２の器体の夫々の縁部にフラ
ンジ部を形成し、このフランジ部が互いに密着するよう
に金型で押圧しつつ第１及び第２の器体を超音波溶着す
ることにより吸入マフラを形成したものがある。(Example) Conventional technology Conventionally, this type of compressor muffling device has been
As disclosed in Japanese Patent No. 3917, etc., flanges are formed at the edges of each of the first and second containers made of synthetic resin molded products, and a mold is formed so that the flanges are in close contact with each other. There is one in which the suction muffler is formed by ultrasonically welding the first and second vessels while pressing with the pressure.
（ハ）発明が解決しようとする課題
しかしながら上記の構成によると、マフラの消音特性の
向上を図るための消音室内を区分する仕切板は、一方の
器体に一体形成されており仕切板による減衰作用が一定
であるため、圧縮機の出力に応じてマフラの消音特性を
変えることは難しい。すなわち、絞りや共鳴室連通用の
孔が形成される仕切板は、第１及び第２の器体とは別個
に形成されて組込まれるのが好ましい。(c) Problems to be Solved by the Invention However, according to the above configuration, the partition plate that divides the inside of the muffler chamber to improve the muffler's muffling characteristics is integrally formed with one of the vessel bodies, and the damping by the partition plate is Since the action is constant, it is difficult to change the muffler's silencing characteristics depending on the output of the compressor. That is, it is preferable that the partition plate in which the diaphragm and the hole for communicating the resonance chamber are formed is formed separately from the first and second vessels and then incorporated therein.
しかし、一般的な超音波溶着法によると３部品は同時に
溶着することができないため、例えば第１の器体に仕切
板を溶着した後で第１の器体と第２の器体を溶着しなげ
ればならず、作業二［数が増加するという問題があった
。However, according to the general ultrasonic welding method, three parts cannot be welded at the same time, so for example, after welding the partition plate to the first vessel body, weld the first vessel body and the second vessel body. There was a problem that the number of tasks would increase.
また、第１及び第２の器体や仕切板を完全に溶着させる
ためには各々の接合部分で正確な形状や高い寸法精度が
要求され、完全なシールは困難であった。Furthermore, in order to completely weld the first and second vessel bodies and partition plates, accurate shapes and high dimensional accuracy are required at each joint, making it difficult to achieve a perfect seal.
本発明は斯る点）こ鑑みなされたもので、仕切板が別体
であっても器体や仕切板の接合部に高い寸法精度を必要
とせず、設計の自由度を高めつつ、１度の溶着作業で仕
切板の確実な固定と接合部の完全なシールが行なえる性
能の良い圧縮機の消音装置を提供することを目的とする
。The present invention has been made in view of this point. Even if the partition plates are separate, high dimensional accuracy is not required for the vessel body and the joints of the partition plates, and while increasing the degree of freedom in design, The purpose of the present invention is to provide a high-performance compressor silencer that can securely fix partition plates and completely seal joints during welding work.
（ニ）課題を解決するための手段
本発明は、合成樹脂の成形品からなる第１及び第２の器
体を夫々の縁部で超音波溶着により接合して内部に消音
室を形成すると共に、この接合部付近に消音室内を区分
する仕切板を固定した消音装置において、前記器体の少
なくとも一方の縁部に接合面より突出４−る溶着用突起
を設け、かつ、方の器体の縁部に接合面より突出する仕
切板押え用突起を設けると共に、他方の器体の縁部に接
合面よりへこんだ仕切板収容段部を設け、前記溶着用突
起の溶融に伴なって押え用突起が仕切板を押圧して潰れ
るよう構成したものである。(d) Means for Solving the Problems The present invention involves joining first and second containers made of synthetic resin molded products by ultrasonic welding at their respective edges to form a sound deadening chamber inside. , in a sound muffling device in which a partition plate for partitioning the inside of a muffler is fixed near the joint, a welding protrusion protruding from the joint surface is provided on at least one edge of the body, and A projection for holding down the partition plate that protrudes from the joint surface is provided at the edge, and a partition plate accommodating step recessed from the joint surface is provided at the edge of the other vessel body, and as the welding projection melts, the projection for holding down the partition plate is provided. The protrusion is configured to collapse by pressing against the partition plate.
（ホ）作用
本発明の圧縮機の消音装置は上記の構成により、加振に
よる溶着用突起の溶融によって第１及び第２の器体の夫
々の縁部を全周に亘って密着できる一方、溶着用突起の
溶融に伴なって押え用突起が仕切板を押圧しつ一つ加振
されることにより、該突起が摩擦で潰れると共にこの潰
れた突起が仕切板に食い込むため、仕切板を器体に強固
に固定することができ、１度の溶着作業で仕切板の確実
な固定と接合部の完全なシールを行なうことができるも
のである。(E) Function The noise damping device for a compressor according to the present invention has the above-described configuration, which allows the edges of the first and second bodies to be brought into close contact with each other over the entire circumference by melting the welding protrusions due to vibration. As the welding protrusion melts, the holding protrusion presses the partition plate and is vibrated, causing the protrusion to be crushed by friction and the crushed protrusion to bite into the partition plate, causing the partition plate to become unstable. It can be firmly fixed to the body, and a single welding operation can securely fix the partition plate and completely seal the joint.
（へ）実施例 以下本発明を図に示す実施例に基づいて説明する。(f) Example The present invention will be explained below based on embodiments shown in the drawings.
（１）は密閉ケース（２）内に電動要素（３）と圧縮要
素（４）とからなる電動圧縮機本体（５）を収納してな
る密閉型電動圧縮機である。前記圧縮要素（４）はモー
ターケース〈６）にボルト（７）で固定されたシリンダ
（８）と、該シリンダ（８）内を往復摺動するビストン
ク９）と、前記シリンダ＜８〉の開口部を閉塞するよう
に取付けられたバルブシート（１０）、ヘッドプレート
（１１）及びこのヘッドプレートに一体形成された吐出
マフラ（１２）とから構成される。り１３）は前記シリ
ンダ（８〉内に直接連通するようにヘッドプレー１−（
１１）の孔に嵌挿される連通管り１４）をポリブチレン
テレフタト−ト等の合成樹脂（以下ＰＢＴと略す）で一
体形成した分離型吸込マフラである。（１５）は密閉ゲ
ース〈２）に貫通固着されると共にその開口（１５ａ）
を吸込マフラ（１３）の吸入部（１３ａ）に位置せしめ
た吸入管である。(1) is a hermetic electric compressor in which an electric compressor main body (5) consisting of an electric element (3) and a compression element (4) is housed in a hermetic case (2). The compression element (4) includes a cylinder (8) fixed to the motor case <6) with a bolt (7), a bistonk 9) that slides back and forth within the cylinder (8), and an opening of the cylinder <8>. It consists of a valve seat (10) attached to close the area, a head plate (11), and a discharge muffler (12) integrally formed with the head plate. The head plate 1-(13) is connected to the head plate 1-(
This is a separate type suction muffler in which a communicating pipe 14) fitted into the hole 11) is integrally formed with a synthetic resin such as polybutylene terephthalate (hereinafter abbreviated as PBT). (15) is fixed through the sealing gauge <2) and its opening (15a)
This is a suction pipe located in the suction part (13a) of the suction muffler (13).
而して、吸込マツラフ１３）はＰＢＴの成形品からなる
第１の器体（１６）と第２の器体（１７）とを夫々の縁
部（１６ａ）（１７ａ）で超音波溶着により接合すると
共に、消音室（１８）内を膨張室（１９）と共鳴室（２
０）に区分する仕切板〈２１）を収納して構成される。Thus, the suction Matsuraf 13) joins the first container body (16) and the second container body (17) made of PBT molded products at their respective edges (16a) and (17a) by ultrasonic welding. At the same time, the inside of the silencing chamber (18) is expanded into an expansion chamber (19) and a resonance chamber (2).
It is constructed by storing a partition plate <21) that divides into 0).
この吸込マフラの第１の器体（１６）の縁部（１６ａ）
には接合面（２２）より突出する溶着用突起（２３）と
同じく接合面（２２〉より突出するリブ（２７）及びこ
のリブの先端に形成された複数の仕切板押え突起（２４
〉を有するフランジ部（２５）が形成されており、また
、第２の器体（１７）の縁部（１７ａ）には接合面（２
６）よりへこんだ仕切板収容段部（２８）を有するフラ
ンジ部（２９）が形成されている。The edge (16a) of the first body (16) of this suction muffler
includes a welding protrusion (23) that protrudes from the joint surface (22), a rib (27) that also protrudes from the joint surface (22), and a plurality of partition plate holding projections (24) formed at the tips of the ribs.
A flange portion (25) having a
6) A flange portion (29) having a more recessed partition plate accommodating step portion (28) is formed.
ここで、リブ（２７）は筒器体（１６）（１７）の接合
時にその周面を第２の器体（１７）の内壁に接して挿入
時の案内や溶着時の位置決め作用を果たすと共に、溶着
時に溶融樹脂が消音室（１８）内へ流れ出すのを抑制し
ている。Here, the rib (27) has its peripheral surface in contact with the inner wall of the second container body (17) when joining the cylindrical containers (16) and (17), and serves as a guide during insertion and a positioning function during welding. , suppresses the molten resin from flowing into the silencing chamber (18) during welding.
また、仕切板押え突起＜２４）は溶着用突起（２３）が
一部溶融した後に仕切板（２１）に当たるよう寸法管理
されている。Further, the dimensions of the partition plate pressing protrusion <24) are controlled so that the welding protrusion (23) comes into contact with the partition plate (21) after being partially melted.
そして、」−記吸込マフラ（１３）は、第３図中矢印で
示すように、抑圧装置（図示せず）のホーンと架台とで
、筒器体（１６）（１７）のフランジ部（２５）（２９
）押圧しつつ、フランジ部（２５）（２６）を全周に亘
って均等に加振することより、第１の器体く１６）の溶
着用突起（２３）と第２の器体（１７）の接合面（２６
）とが超音波溶着し、第４図に示ずよう両器体（１６）
（１７）が結合することにより組付（りられている。As shown by the arrow in FIG. )(29
) While pressing the flange portions (25) and (26), the welding protrusion (23) of the first vessel body (16) and the second vessel body (17) are welded by vibrating the flanges (25) and (26) uniformly over the entire circumference. ) joint surface (26
) are ultrasonically welded to form both bodies (16) as shown in Figure 4.
(17) are assembled by joining.
ここで、超音波溶着を開始すると、まず、溶着用突起（
２３）が接合面（２６）に当たって該突起が溶は始め、
而る後、溶けた溶着用突起（２３）がリブ（２７）の方
まで流れて両接合面（２２） （２６）が密着するが、
仕切板押え突起（２４）は上述した寸法関係に因り、溶
着用突起（２３）が一部溶は出した状態で仕切板（２１
）に当たり、加振により潰れると共に仕切板り２１）に
食い込んで該仕切板を強固に抑圧固定する。When starting ultrasonic welding, the welding protrusion (
23) hits the joint surface (26) and the protrusion begins to melt.
After that, the melted welding protrusion (23) flows towards the rib (27) and both joint surfaces (22) and (26) are brought into close contact.
Due to the above-mentioned dimensional relationship, the partition plate holding projection (24) is attached to the partition plate (21) with the welding projection (23) partially melted.
), it is crushed by the vibration and bites into the partition plate 21), firmly suppressing and fixing the partition plate.
このように構成された吸込マフラは、溶着用突起（２３
）と仕切板押え突起（２４）が」二連したような寸法関
係に設定されているため、加振による溶着用突起（２３
）の溶融によって第１及び第２の器体（１６）（１７）
の夫々の接合面（２２） （２６）を全周に亘って密着
できる一方、溶着用突起（２３）の溶融に伴なって仕切
板押え突起（２４）が仕切板（２１）を押圧しつつ加振
されることにより、該突起が摩擦で潰れると共にこの潰
れた突起（２４）が仕切板（２１）に食い込んで、該仕
切板を器体（１６）（１７）に強固に固定することがで
き、１度の溶着作業で仕切板（２１）の確実な固定と接
合面（２２） （２６）の完全なシールを行なうことが
できる。The suction muffler configured in this way has welding protrusions (23
) and the partition plate holding protrusion (24) are set in a dimensional relationship that resembles a double series, so the welding protrusion (23) due to vibration is
) by melting the first and second vessels (16) (17)
While the joint surfaces (22) and (26) of the welding plates (22) and (26) can be brought into close contact over the entire circumference, as the welding protrusion (23) melts, the partition plate pressing protrusion (24) presses the partition plate (21). When the vibration is applied, the protrusion is crushed by friction and the crushed protrusion (24) bites into the partition plate (21), thereby firmly fixing the partition plate to the vessel body (16) (17). It is possible to reliably fix the partition plate (21) and completely seal the joint surfaces (22) and (26) with a single welding operation.
また、第１の器体く１６）に形成されたリブ（２７）は
、全周に亘って第２の器体（１７）の内壁に接するよう
形成されているので、単に両器体（１６）（１７）の接
合時の案内や溶着時の位置決めたけでなく、溶融樹脂の
消音室（１８）内へ流れ出しを防ぐ作用も有しており、
溶融樹脂の固まりがシリンダ内へ吸い込まれてバルブ破
損等を招くのを防ぎ、性能の良い吸込マフラ（１３）が
得られる。Moreover, since the rib (27) formed on the first vessel body (16) is formed so as to be in contact with the inner wall of the second vessel body (17) over the entire circumference, the rib (27) formed on the first vessel body (16) is simply ) (17) for guiding during welding and positioning during welding, it also has the function of preventing molten resin from flowing into the silencing chamber (18).
A suction muffler (13) with good performance can be obtained by preventing lumps of molten resin from being sucked into the cylinder and causing damage to the valve.
尚、本実施例では、フランジ部（２５）に溶着用突起（
２３）を設けたものについて説明したが、該突起は他方
のフランジ部（２９）或いは両方に設けても良く、また
、溶着用突起（２３〉、仕切板押え時（２４）、及びリ
ブ（２７）の形状及び組合せはこれに限定されるもので
はない。In addition, in this embodiment, the flange portion (25) is provided with a welding protrusion (
23), but the protrusion may be provided on the other flange (29) or both, and the welding protrusion (23), the partition plate presser (24), and the rib (27) may be provided on the other flange (29) or both. ) are not limited to these shapes and combinations.
（ト）発明の効果
以上のように本発明によれば、仕切板が別体であっても
器体や仕切板の接合部に高い寸法精度を必要としないの
で設計の自由度を向上できると共に、１度の簡単な溶着
作業だけで仕切板の確実な固定と接合部の完全なシール
の双方を行なえる性能の良い圧縮機の消音装置を提供で
きる。(g) Effects of the Invention As described above, according to the present invention, even if the partition plates are separate, high dimensional accuracy is not required for the joints of the vessel body and the partition plates, so the degree of freedom in design can be improved. , it is possible to provide a high-performance compressor silencer that can both securely fix the partition plate and completely seal the joint with just one simple welding operation.
第１図は本発明の実施例を示す密閉型電動圧縮機の横断
面図、第２図は吸込マフラの分解正面図、第３図は第２
図のＡ−Ａ’セクンヨンにおける吸込マフラの要部分解
断面図、第４図は吸込マフラの要部断面図である。
（１３〉・・・吸込マフラ、 （１６）・・・第１の器
体、 （１７）・・・第２の器体、 （１８）・・・消
音室、 ＜２１）・・・仕切板、 （２３）・・・溶着
用突起、 （２４〉・・・仕切板押え突起、 （２７）
・・・リブ、 （２８）・・・仕切板収容段部。Figure 1 is a cross-sectional view of a hermetic electric compressor showing an embodiment of the present invention, Figure 2 is an exploded front view of a suction muffler, and Figure 3 is a
FIG. 4 is an exploded cross-sectional view of the main part of the suction muffler along line AA' in the figure, and FIG. 4 is a cross-sectional view of the main part of the suction muffler. (13>...Suction muffler, (16)...First vessel body, (17)...Second vessel body, (18)...Sound reduction chamber, <21)...Partition plate , (23)...Protrusion for welding, (24>...Protrusion for holding partition plate, (27)
... Rib, (28) ... Partition plate accommodation step.
Claims (1)
夫々の縁部で超音波溶着により接合して内部に消音室を
形成すると共に、この接合部付近に消音室内を区分する
仕切板を固定したものにおいて、前記器体の少なくとも
一方の縁部に接合面より突出する溶着用突起を設け、か
つ、一方の器体の縁部に接合面より突出する仕切板押え
用突起を設けると共に、他方の器体の縁部に接合面より
へこんだ仕切板収容段部を設け、前記溶着用突起の溶融
に伴なって押え用突起が仕切板を押圧して潰れるよう構
成したことを特徴とする圧縮機の消音装置。(1) A first and second container body made of a synthetic resin molded product is joined at each edge by ultrasonic welding to form a sound deadening chamber inside, and the sound deadening chamber is divided near this joint. In a device with a fixed partition plate, at least one edge of the vessel body is provided with a welding protrusion that protrudes from the joint surface, and the edge of one vessel body is provided with a protrusion for holding down the partition plate that protrudes from the joint surface. In addition, a partition plate accommodating stepped portion recessed from the joint surface is provided at the edge of the other container body, and the holding protrusion presses the partition plate and collapses as the welding protrusion melts. Features a compressor silencer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14282189A JPH039089A (en) | 1989-06-05 | 1989-06-05 | Muffling device for compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14282189A JPH039089A (en) | 1989-06-05 | 1989-06-05 | Muffling device for compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH039089A true JPH039089A (en) | 1991-01-16 |
Family
ID=15324410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14282189A Pending JPH039089A (en) | 1989-06-05 | 1989-06-05 | Muffling device for compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH039089A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020012722A (en) * | 2000-08-08 | 2002-02-20 | 오원룡 | Ultrasonic-welding method of crank case pressure control valve and the crank case pressure control valve |
| US6935848B2 (en) | 2003-05-19 | 2005-08-30 | Bristol Compressors, Inc. | Discharge muffler placement in a compressor |
| JP2006348954A (en) * | 2006-09-29 | 2006-12-28 | Sanyo Electric Co Ltd | Manufacturing method of muffler for compressor |
| JP2006348955A (en) * | 2006-09-29 | 2006-12-28 | Sanyo Electric Co Ltd | Manufacturing method of muffler for compressor |
| JP2006348953A (en) * | 2006-09-29 | 2006-12-28 | Sanyo Electric Co Ltd | Manufacturing method of muffler for compressor |
-
1989
- 1989-06-05 JP JP14282189A patent/JPH039089A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20020012722A (en) * | 2000-08-08 | 2002-02-20 | 오원룡 | Ultrasonic-welding method of crank case pressure control valve and the crank case pressure control valve |
| US6935848B2 (en) | 2003-05-19 | 2005-08-30 | Bristol Compressors, Inc. | Discharge muffler placement in a compressor |
| JP2006348954A (en) * | 2006-09-29 | 2006-12-28 | Sanyo Electric Co Ltd | Manufacturing method of muffler for compressor |
| JP2006348955A (en) * | 2006-09-29 | 2006-12-28 | Sanyo Electric Co Ltd | Manufacturing method of muffler for compressor |
| JP2006348953A (en) * | 2006-09-29 | 2006-12-28 | Sanyo Electric Co Ltd | Manufacturing method of muffler for compressor |
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