JP3112664B2 - Silencer for air conditioner - Google Patents
Silencer for air conditionerInfo
- Publication number
- JP3112664B2 JP3112664B2 JP11002471A JP247199A JP3112664B2 JP 3112664 B2 JP3112664 B2 JP 3112664B2 JP 11002471 A JP11002471 A JP 11002471A JP 247199 A JP247199 A JP 247199A JP 3112664 B2 JP3112664 B2 JP 3112664B2
- Authority
- JP
- Japan
- Prior art keywords
- recess
- pipe
- silencer
- air conditioner
- refrigerant
- 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.)
- Expired - Fee Related
Links
Landscapes
- Forging (AREA)
Description
【0001】[0001]
【発明の属する技術分野】本発明は、例えばエアコンデ
ショナに配設され、外観の基本形状が鍛造で成形される
エアコンデショナ用サイレンサーに関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a silencer for an air conditioner, which is provided, for example, in an air conditioner and whose basic appearance is formed by forging.
【0002】[0002]
【従来の技術】自動車のエアコンデショナとして、カー
エアコンが配設されるが、その冷凍サイクル内を冷却冷
媒が循環する。カーエアコンでは、エアコンの稼働中
に、その機種特有または固有に、冷媒の流動が起因とな
る異音が発生する場合がある。その対策としては種々の
方法があり、例えば冷媒の量の加減等を行い、冷凍サイ
クルの内圧や冷媒の流量を変えたりして異音の防止をし
ていたが、十分な効果があがらない場合は、サイレンサ
ーをエアコンの冷凍サイクルに取付ける方法が採られる
ことがある。2. Description of the Related Art A car air conditioner is provided as an air conditioner of an automobile, and a cooling refrigerant circulates in a refrigeration cycle. In a car air conditioner, during operation of the air conditioner, abnormal noise due to the flow of the refrigerant may be generated, which is specific or unique to the model. As a countermeasure, there are various methods, for example, by adjusting the amount of the refrigerant, and changing the internal pressure of the refrigeration cycle and the flow rate of the refrigerant to prevent abnormal noise, but when the effect is not sufficient. In some cases, a method of attaching a silencer to a refrigeration cycle of an air conditioner may be adopted.
【0003】図6は、従来のサイレンサーの製造方法を
示す。サイレンサー21は図6中の左部に示すように、
アルミ合金材を鍛造して有底円筒体22を成形し、その
底部に肉厚部23を設けている。次いで、有底円筒体2
2の上部をネッキング加工して絞り部24を成形する。
その後、絞り部24の内周をドリル等で切削して、パイ
プ受口25を形成し、さらに肉厚部23を切削して段状
のパイプ受口26を形成する。FIG. 6 shows a method of manufacturing a conventional silencer. As shown in the left part of FIG. 6, the silencer 21
A bottomed cylindrical body 22 is formed by forging an aluminum alloy material, and a thick portion 23 is provided at the bottom. Next, the bottomed cylinder 2
The upper part of 2 is necked to form the drawn part 24.
Thereafter, the inner periphery of the narrowed portion 24 is cut with a drill or the like to form a pipe port 25, and the thick portion 23 is further cut to form a stepped pipe port 26.
【0004】[0004]
【発明が解決しようとする課題】上記のように、従来の
サイレンサーの製造工程では、鍛造後にサイレンサー底
部のパイプ受口から絞り部のパイプ受口までの長さ及び
全長を切削により決めている。サイレンサーの基本形状
を成形する鍛造加工と、パイプ受口の切削加工は全く分
かれた工程であるので、手間のかかる作業になり加工時
間とコストがかかる。また、サイレンサーのパイプ受口
を切削加工すると、サイレンサー内部に切りかすが残
り、サイレンサーが一般に圧縮機の前後に配設している
ホース金具に接続されるため、圧縮機やリキッドタンク
に切りかすが侵入することがある。As described above, in the conventional silencer manufacturing process, after forging, the length and the total length from the pipe receiving port at the bottom of the silencer to the pipe receiving port at the drawing portion are determined by cutting. Since the forging process for forming the basic shape of the silencer and the cutting process for the pipe receiving port are completely separate processes, the process is time-consuming and requires much processing time and cost. Also, when the pipe opening of the silencer is cut, chips remain inside the silencer, and since the silencer is generally connected to hose fittings arranged before and after the compressor, chips enter the compressor and the liquid tank. Sometimes.
【0005】圧縮機に切りかすが侵入すると、冷却力の
不足や圧縮機破損の要因となり、リキッドタンクの詰ま
りは、冷媒の下流側への流れを阻害し、冷却力不足の要
因となり、完全に除去しなければならない。また、切削
により生じたバリがあると、冷媒が通るときにそれが流
動音の要因となることがある。さらに、切削加工時に
は、切削オイルを使用することから、その廃棄処理も必
要となる。本発明は、上記課題に鑑みてなされたもの
で、切削加工を完全に廃止し、切削時の切りかすやバリ
を無くすとともに、容易に製造できるエアコンデショナ
用サイレンサーを提供することを目的とする。When chips enter the compressor, the cooling power becomes insufficient or the compressor is damaged, and the clogging of the liquid tank hinders the flow of the refrigerant to the downstream side, causing the cooling power to become insufficient and completely removing the refrigerant. Must. Also, if there is a burr generated by the cutting, when the refrigerant passes, it may cause flow noise. Furthermore, since the cutting oil is used at the time of the cutting process, it is necessary to dispose of the cutting oil. The present invention has been made in view of the above problems, and has as its object to provide a silencer for an air conditioner that completely eliminates cutting processing, eliminates chips and burrs during cutting, and can be easily manufactured. .
【0006】上記目的を達成するために、本発明のエア
コンデショナ用のサイレンサーは、エアコンデショナの
冷媒を導入するパイプが嵌合する凹所及び該凹所の底部
に設けられ冷媒が流通する小径孔を有するパイプ受口
と、上記冷媒を排出するパイプが嵌合する凹所及び該凹
所の底部に設けられ冷媒が流通する小径孔を有するパイ
プ受口とを備え、これらパイプ受口の加工前の基本形状
が鍛造により有底円筒体形状に成形されたエアコンデシ
ョナ用サイレンサーにおいて、上記鍛造の際に上記有底
円筒体の底部にパイプの外径にほぼ等しい凹所を形成
し、該凹所の底部に該凹所の外径よりも小さい小径孔を
プレス抜きして、段部を有する上記パイプ受口の一方を
設け、上記有底円筒体の開口側にネッキング加工により
絞ってパイプの外径よりも小さい小径孔を形成し、該小
径孔の内周部をプレスによりパイプの外径にほぼ等しい
凹所を形成して、段部を有する上記パイプ受口の他方を
設けている。In order to achieve the above object, a silencer for an air conditioner according to the present invention is provided with a recess in which a pipe for introducing a refrigerant of the air conditioner is fitted, and a coolant is provided at the bottom of the recess and through which the coolant flows. comprising a pipe socket having a small diameter hole, and a pipe socket having a small diameter hole pipe for discharging the refrigerant is refrigerant provided in the bottom of the recess and the recess flows to fit, these pipes socket In a silencer for an air conditioner in which the basic shape before processing is formed into a bottomed cylindrical body shape by forging, a recess substantially equal to the outer diameter of the pipe is formed at the bottom of the bottomed cylindrical body during the forging, A small- diameter hole smaller than the outer diameter of the recess is punched out at the bottom of the recess to provide one of the pipe sockets having a step, and necking is performed on the opening side of the bottomed cylindrical body.
Squeezing to form a small- diameter hole smaller than the outer diameter of the pipe, pressing the inner peripheral portion of the small- diameter hole to form a recess approximately equal to the outer diameter of the pipe by pressing , and The other side of the mouth is provided.
【0007】[0007]
【発明の実施の形態】以下、本発明の実施の形態による
エアコンデショナ用サイレンサーについて、図面を参照
しながら説明する。図1及び図2は、本発明に係るカー
エアコン用のサイレンサー1を示し、エアコン側のホー
ス若しくはパイプ類に接続される前の外観形状を示す。
このサイレンサー1は鍛造で基本的な外観形状である有
底円筒体に成形され、その後各部の加工が行われる。DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an air conditioner silencer according to an embodiment of the present invention will be described with reference to the drawings. FIG. 1 and FIG. 2 show a silencer 1 for a car air conditioner according to the present invention, and show an appearance before being connected to hoses or pipes on the air conditioner side.
This silencer 1 is formed into a bottomed cylindrical body having a basic appearance by forging, and thereafter, processing of each part is performed.
【0008】図3にその製造工程を示す。出発材料は鍛
造可能な材質、例えば円柱状のアルミニウム(A606
3:JIS材料)を母材2として用いる。母材2は、径
Dと高さHを厳密に決めておく。本実施の形態では切削
加工を省略しているので、材料投入量を正確に行って全
長の公差を押さえ、もし公差が発生しても、その値が問
題とならないようにするためである。FIG. 3 shows the manufacturing process. The starting material is a forgeable material, for example, columnar aluminum (A606)
3: JIS material) is used as the base material 2. The diameter D and the height H of the base material 2 are strictly determined. In the present embodiment, since the cutting process is omitted, the material input amount is accurately performed, the tolerance of the entire length is suppressed, and even if the tolerance occurs, the value does not matter.
【0009】図3中の左部に示すように、まず母材2を
鍛造により有底円筒体3に成形する。有底円筒体3は、
コーナ部以外は全体がなるべく一定の肉厚となるように
成形し、その際底部4の中央部に円形の凹所4aを鍛造
により形成する。この凹所4aの径は後の工程で接合さ
れるパイプの外径とほぼ一致させる。次に、凹所4aの
底部中央にプレス抜きにより小径孔4bを穿設し、段部
を有するパイプ受口4cを形成する。プレス抜き作業
は、平坦な底部4にあてた当て金(ダイス)と円筒体3
に挿入した切削刃(ポンチ)によって行われる。As shown in the left part of FIG. 3, first, a base material 2 is formed into a bottomed cylindrical body 3 by forging. The bottomed cylinder 3 is
Except for the corners, the whole is formed so as to have a constant thickness as much as possible. At this time, a circular recess 4a is formed in the center of the bottom 4 by forging. The diameter of the recess 4a is made substantially equal to the outer diameter of the pipe to be joined in a later step. Next, a small-diameter hole 4b is formed in the center of the bottom of the recess 4a by press punching to form a pipe receiving port 4c having a step. The press punching operation is performed by using the metal plate (die) applied to the flat bottom 4 and the cylindrical body 3.
The cutting is performed by a cutting blade (punch) inserted in the.
【0010】次いで、有底円筒体3は固定部材6で固定
し、例えば図3で示すような絞り型10を順次用いて、
開口側にネッキング加工による絞り部7を形成し、絞り
部7の内周部をポンチ9によってプレス加工により成形
し、段部を有するパイプ受口7aを形成する。すなわ
ち、絞り部7は、その内径を後の工程で接続されるパイ
プの端部外径よりも少し小さくなるまで絞って小径孔7
bを形成し、次いでポンチ9によるプレス加工によって
凹所7cを形成する。該凹所7cは、パイプ受口7aに
接続されるパイプの外径にほぼ一致させる。図2の矢視
Aの拡大図に示すように、絞り部7の内周側はテーパ状
に傾斜面7dを設け、加工しやすくしている。こうし
て、サイレンサー1は完成品になり、次工程でパイプに
接合される。Next, the bottomed cylindrical body 3 is fixed by a fixing member 6 and, for example, a drawing die 10 as shown in FIG.
A narrowed portion 7 is formed on the opening side by necking, and an inner peripheral portion of the narrowed portion 7 is formed by pressing with a punch 9 to form a pipe receiving port 7a having a step. That is, the constricted portion 7 is constricted until its inner diameter becomes slightly smaller than the outer diameter of the end of the pipe to be connected in a later step, and the constricted portion 7 is constricted.
b is formed, and then a recess 7c is formed by pressing with a punch 9. The recess 7c substantially matches the outer diameter of the pipe connected to the pipe receiving port 7a. As shown in the enlarged view of the arrow A in FIG. 2, the inner peripheral side of the narrowed portion 7 is provided with a tapered inclined surface 7d to facilitate processing. Thus, the silencer 1 becomes a finished product and is joined to the pipe in the next step.
【0011】以上説明したように、本実施の形態のサイ
レンサー1は、鍛造時にその基本形状を成形する際、底
部4に凹所4aを成形し、次工程のプレス抜きによりパ
イプ受口4cを成形している。また、サイレンサー1の
絞り部7側も絞り加工の後、プレス加工によりパイプ受
口7aを成形している。こうして、切削工程を一切省
き、鍛造加工とプレス加工によって、パイプ受口4c,
7aを成形できるので、加工時間の短縮とコストの低減
が可能になる。As described above, the silencer 1 of the present embodiment forms the recess 4a in the bottom 4 when forming the basic shape during forging, and forms the pipe receiving port 4c by pressing in the next step. are doing. Also, the pipe receiving port 7a is formed by pressing after the drawing on the drawn portion 7 side of the silencer 1. In this way, the cutting process is omitted altogether, and the forging process and the pressing process enable the pipe receiving port 4c,
Since 7a can be formed, processing time and cost can be reduced.
【0012】このサイレンサー1の使用例を簡単に説明
する。上記したように、サイレンサー1は、自動車のエ
アコンデショナに使用される。図4は、自動車のエンジ
ンルームにおけるエアコンデショナの部品の一部を示
し、冷媒は圧縮機11で圧縮されてから高圧ホース1
2、コンデンサー13、リキッドタンク15へ流れ、図
示しない室内側のクーリングユニットに入り、再びエン
ジンルーム側の低圧ホース14へ流れる。サイレンサー
1は、本実施の形態では、低圧ホース14に配設され、
圧縮機による冷媒脈動音を防止している。An example of using the silencer 1 will be briefly described. As described above, the silencer 1 is used for an air conditioner of an automobile. FIG. 4 shows a part of components of an air conditioner in an engine room of an automobile.
2. It flows to the condenser 13 and the liquid tank 15, enters the cooling unit (not shown) on the indoor side, and flows again to the low-pressure hose 14 on the engine room side. In the present embodiment, the silencer 1 is disposed on the low-pressure hose 14,
Prevents refrigerant pulsation noise from the compressor.
【0013】本実施の形態では、切削工程がないことか
ら、有底円筒体の切削時に生じる切りかすが冷媒ととも
に、冷凍サイクル内を循環する恐れがなく、リキッドタ
ンク15等の詰まりを防止できる。したがって、切りか
すを取り除く手間を軽減し、切削油を使用しないので、
除去する手間も必要としない。また、切削時のバリを無
くしているので、冷媒がバリを通過する際に生じる流動
音の発生を防止できる。In this embodiment, since there is no cutting step, there is no danger that chips generated at the time of cutting the bottomed cylinder are circulated in the refrigeration cycle together with the refrigerant, so that clogging of the liquid tank 15 and the like can be prevented. Therefore, the work to remove chips is reduced and cutting oil is not used.
There is no need to remove it. In addition, since the burrs at the time of cutting are eliminated, it is possible to prevent the generation of the flow noise generated when the refrigerant passes through the burrs.
【0014】以上、本発明の実施の形態について説明し
たが、勿論、本発明はこれに限定されることなく、構成
部品の寸法、材質、形状その相対的配置、製造工程は本
発明範囲をそれに限定する趣旨ではない。以下変形例の
一例を示す。上記の図1〜図4に示すサイレンサー1
は、底部4に一方のパイプ受口4cを設けたが、図5に
示すサイレンサー1aは、パイプ受口を周部8に設けて
いることが異なっている。Although the embodiments of the present invention have been described above, the present invention is, of course, not limited to these, and the dimensions, materials, shapes, relative arrangements, and manufacturing steps of the components are based on the scope of the present invention. It is not intended to be limiting. Hereinafter, an example of a modified example will be described. Silencer 1 shown in FIGS.
Has one pipe receiving port 4c in the bottom part 4, but differs from the silencer 1a shown in FIG.
【0015】サイレンサー1aの製造工程は、図3に示
すサイレンサー1の製造工程と基本的に同じであるが、
プレス抜きの段階のみ異なっている。すなわち、鍛造段
階の後、サイレンサー1aの周部8をプレス抜きして小
径孔8bを穿設する。この際、絞り加工の前である切削
工具の当て金等は筒内に支障なく挿入できる。プレス抜
きした後は、小径孔8bの周部をプレス加工して、凹所
8cを設け段部を有するパイプ受口8aを形成する。そ
の後、絞り加工して絞り部7を形成し、プレス加工して
パイプ受口7aを形成する。このような成形方法であっ
ても上記実施の形態と同様な効果を奏する。なお、製造
工程については凹所8cを成形した後、小径孔8bをプ
レス抜きしてもよい。The manufacturing process of the silencer 1a is basically the same as the manufacturing process of the silencer 1 shown in FIG.
Only the stage of press release differs. That is, after the forging step, the peripheral portion 8 of the silencer 1a is pressed to form a small-diameter hole 8b. At this time, the backing of the cutting tool before drawing can be inserted into the cylinder without any trouble. After the press punching, the periphery of the small-diameter hole 8b is pressed to form a recess 8c to form a pipe port 8a having a step. Thereafter, drawing is performed to form a drawn portion 7, and pressing is performed to form a pipe receiving port 7a. Even with such a molding method, the same effects as those of the above embodiment can be obtained. In the manufacturing process, after the recess 8c is formed, the small-diameter hole 8b may be pressed.
【0016】[0016]
【発明の効果】本発明のエアコンデショナ用サイレンサ
ーは、鍛造で成形した有底円筒体からサイレンサーの完
成品に至るまで、一切切削加工がなくプレス加工にした
ことから、手間がかからず作業時間を短縮するととも
に、生産コストを安価にすることができる。切削加工が
ないことから、切削時に生じる切りかすやバリを取り除
く手間がなくなる。The silencer for an air conditioner of the present invention requires no work since there is no cutting work from the bottomed cylindrical body formed by forging to the finished silencer. The time can be shortened, and the production cost can be reduced. Since there is no cutting, there is no need to remove chips and burrs generated during cutting.
【図1】本発明の実施の形態によるエアコンデショナ用
サイレンサーの完成品の斜視図である。FIG. 1 is a perspective view of a completed product of an air conditioner silencer according to an embodiment of the present invention.
【図2】同エアコンデショナ用サイレンサーの完成品の
断面図であるFIG. 2 is a sectional view of a completed product of the air conditioner silencer.
【図3】同エアコンデショナ用サイレンサーを母材から
完成品までの製造工程の流れを示す図である。FIG. 3 is a view showing a flow of a manufacturing process of the silencer for an air conditioner from a base material to a finished product.
【図4】同エアコンデショナ用サイレンサーの自動車に
おける使用形態を示す斜視図である。FIG. 4 is a perspective view showing a usage form of the air conditioner silencer in an automobile.
【図5】変形例によるエアコンデショナ用サイレンサー
の製造工程の流れを示す図である。FIG. 5 is a diagram showing a flow of a manufacturing process of a silencer for an air conditioner according to a modification.
【図6】従来のエアコンデショナ用サイレンサーを鍛造
品から完成品までの製造工程の流れを示す図である。FIG. 6 is a view showing a flow of a manufacturing process of a conventional silencer for an air conditioner from a forged product to a finished product.
1,1a サイレンサー 2 母材 3 有底円筒体 4 底部 4a,7c,8c 凹所 4b,7b,8b 小径孔 4c,7a,8a パイプ受口 5 開口 7 絞り部 8 周部 1, 1a Silencer 2 Base material 3 Cylindrical body with bottom 4 Bottom 4a, 7c, 8c Recess 4b, 7b, 8b Small diameter hole 4c, 7a, 8a Pipe socket 5 Opening 7 Restrictor 8 Peripheral part
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) F25B 41/00 B21K 21/02 B21K 21/12 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) F25B 41/00 B21K 21/02 B21K 21/12
Claims (2)
プが嵌合する凹所及び該凹所の底部に設けられ冷媒が流
通する小径孔を有するパイプ受口と、上記冷媒を排出す
るパイプが嵌合する凹所及び該凹所の底部に設けられ冷
媒が流通する小径孔を有するパイプ受口とを備え、これ
らパイプ受口の加工前の基本形状が鍛造により有底円筒
体形状に成形されたエアコンデショナ用サイレンサーに
おいて、上記鍛造の際に上記有底円筒体の底部にパイプ
の外径にほぼ等しい凹所を形成し、該凹所の底部に該凹
所の外径よりも小さい小径孔をプレス抜きして、段部を
有する上記パイプ受口の一方を設け、上記有底円筒体の
開口側にネッキング加工により絞ってパイプの外径より
も小さい小径孔を形成し、該小径孔の内周部をプレスに
よりパイプの外径にほぼ等しい凹所を形成して、段部を
有する上記パイプ受口の他方を設けたことを特徴とする
エアコンデショナ用サイレンサー。An air conditioner has a recess into which a pipe for introducing a refrigerant is fitted, a pipe receiving hole provided at the bottom of the recess and having a small hole through which the refrigerant flows, and a pipe for discharging the refrigerant. and a pipe socket having a small diameter hole which the refrigerant is provided to flow to the bottom of the recess and the recess of case, it
In air-des silencer for conditioner basic shape before machining is molded into a bottomed cylindrical body shape by forging Luo pipe socket, the pipe at the bottom of the bottomed cylindrical body during the forging
A recess approximately equal to the outer diameter of the recess, and the recess is formed at the bottom of the recess.
The smaller diameter hole than the outer diameter of a place by punching, the stepped portion
Providing one of the pipe receptacles having, and squeezing by necking on the opening side of the bottomed cylindrical body from the outer diameter of the pipe
Also, a small diameter hole is formed, and a concave portion substantially equal to the outer diameter of the pipe is formed by pressing the inner peripheral portion of the small diameter hole, and the step portion is formed.
A silencer for an air conditioner, wherein the other of the above-mentioned pipe receiving ports is provided.
の周部に設けるとともに、該凹所の底部にプレス抜きに
より穿設した小径孔を設けてなる請求項1に記載のエア
コンデショナ用サイレンサー。2. The air conditioner according to claim 1, wherein said recess is provided on a peripheral portion of said bottomed cylindrical body by a press, and a small-diameter hole formed by punching is provided at a bottom of said recess. For silencer.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11002471A JP3112664B2 (en) | 1999-01-08 | 1999-01-08 | Silencer for air conditioner |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11002471A JP3112664B2 (en) | 1999-01-08 | 1999-01-08 | Silencer for air conditioner |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2000205701A JP2000205701A (en) | 2000-07-28 |
JP3112664B2 true JP3112664B2 (en) | 2000-11-27 |
Family
ID=11530244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11002471A Expired - Fee Related JP3112664B2 (en) | 1999-01-08 | 1999-01-08 | Silencer for air conditioner |
Country Status (1)
Country | Link |
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JP (1) | JP3112664B2 (en) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100467784B1 (en) * | 2002-10-29 | 2005-01-24 | 주식회사 태성 | A distributor of manufacturing process |
KR100825263B1 (en) * | 2007-01-17 | 2008-04-25 | 주식회사 평산 | Muffler for air-con compressor |
JP2017089978A (en) * | 2015-11-11 | 2017-05-25 | 株式会社ヴァレオジャパン | Refrigerant pipe with silencer and refrigeration cycle of vehicular air conditioner including the same |
JP2018077003A (en) * | 2016-11-09 | 2018-05-17 | 株式会社デンソー | Refrigeration cycle device |
-
1999
- 1999-01-08 JP JP11002471A patent/JP3112664B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2000205701A (en) | 2000-07-28 |
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