JPH01121575A - Closed type electrically driven compressor - Google Patents
Closed type electrically driven compressorInfo
- Publication number
- JPH01121575A JPH01121575A JP62277648A JP27764887A JPH01121575A JP H01121575 A JPH01121575 A JP H01121575A JP 62277648 A JP62277648 A JP 62277648A JP 27764887 A JP27764887 A JP 27764887A JP H01121575 A JPH01121575 A JP H01121575A
- Authority
- JP
- Japan
- Prior art keywords
- suction
- cylinder head
- muffler
- suction hole
- cylinder
- 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
- 230000006835 compression Effects 0.000 claims description 6
- 238000007906 compression Methods 0.000 claims description 6
- 230000009365 direct transmission Effects 0.000 abstract 1
- 239000000463 material Substances 0.000 description 5
- 238000005336 cracking Methods 0.000 description 4
- 239000003507 refrigerant Substances 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 101100113692 Caenorhabditis elegans clk-2 gene Proteins 0.000 description 1
- 101100262777 Caenorhabditis elegans umps-1 gene Proteins 0.000 description 1
- 235000014676 Phragmites communis Nutrition 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Compressor (AREA)
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は、冷媒ガスを吸込管から吸込マフラを介して直
接シリンダへ導く構造の密閉型電動圧縮機に関するもの
である。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a hermetic electric compressor having a structure in which refrigerant gas is guided directly from a suction pipe to a cylinder via a suction muffler.
従来の技術
近年密閉型電動圧縮機は冷凍装置の分野に幅広く普及さ
れ、特に密閉型電動圧縮機の信頼性は製品安全面に大き
く寄与している。BACKGROUND ART In recent years, hermetic electric compressors have been widely used in the field of refrigeration equipment, and the reliability of hermetic electric compressors in particular has greatly contributed to product safety.
以下図面を参照しながら、上述した従来の密閉型電動圧
縮機の一例について説明する。An example of the conventional hermetic electric compressor mentioned above will be described below with reference to the drawings.
第３図及び第４図は公開実用新案公報昭６０−１７３６
８３に示された従来の密閉型電動圧縮機の構造を示す。Figures 3 and 4 are from Public Utility Model Publication 1736, 1986.
83 shows the structure of a conventional hermetic electric compressor.
第３図において、１は密閉型電動圧縮機の密閉容器であ
る。２は電動要素で固定子１回転子及びこの回転子に直
接固定されたクランク軸３によって構成されている。In FIG. 3, reference numeral 1 denotes a hermetic container of a hermetic electric compressor. Reference numeral 2 denotes an electric element, which is composed of a stator, a rotor, and a crankshaft 3 directly fixed to the rotor.
４は圧縮要素であって、アルミニウム等の材質で形成さ
れたシリンダへ、ラド５．シリンダ６、ピストン７及び
前記クランク軸３の偏心部に連結された連接棒８によっ
て構成される。この圧縮要素４はスプリング（図示せず
）にて密閉容器１内に弾性支持されている。4 is a compression element, which is connected to a cylinder made of a material such as aluminum; It is composed of a cylinder 6, a piston 7, and a connecting rod 8 connected to the eccentric portion of the crankshaft 3. This compression element 4 is elastically supported within the closed container 1 by a spring (not shown).
９は密着コイルバネ状の吸込管、１ｏは吸込マフラで、
下方がシリンダへラド６の吸込口１１に圧挿入されシリ
ンダ６と連通ずる接続管部１２はプラスチワク等の材質
で形成されている。9 is a tightly coiled spring-like suction pipe, 1o is a suction muffler,
A connecting pipe portion 12 whose lower portion is press-inserted into the suction port 11 of the cylinder rad 6 and communicates with the cylinder 6 is formed of a material such as plasticine.
第４図は、吸込マフラ１０の側面断面図を示しており、
接続管部１２は吸込マフラ１０とシリンダヘッド５の吸
込口１１と連通し、かつシリンダへラド６と接続管部１
２とは異質の材質で形成されている。FIG. 4 shows a side sectional view of the suction muffler 10,
The connecting pipe part 12 communicates with the suction muffler 10 and the suction port 11 of the cylinder head 5, and connects the cylinder head 6 with the connecting pipe part 1.
2 is made of a different material.
以上のように構成された従来の密閉型電動圧縮機につい
て、以下その動作について説明する。電動要素２が起動
すると、ピストンアがシリンダ６内を往復し、冷媒ガス
（図示せず）を吸込、圧縮。The operation of the conventional hermetic electric compressor configured as described above will be described below. When the electric element 2 is activated, the piston moves back and forth within the cylinder 6, sucking in and compressing refrigerant gas (not shown).
吐出する。Exhale.
発明が解決しようとする問題点
上記従来の構成においては、接続管１２は密着コイルバ
ネ状の吸込管９．吸込マフラ１０．接続管部１２を通過
した後、シリンダヘッド６を通りシリンダｅ内に吸込ま
れるが、シリンダヘッド５は圧縮要素４及び吐出される
ガスからの発生熱によシ加熱され、吸込ガスの通過によ
シ冷却される吸込マフラ１０及び接続管部１２の温度以
上に高温になるのでシリンダへラド５が膨張しシリンダ
ヘッド６に圧挿入されている接続管部１２は圧縮力（図
示せず）を受け、亀裂又は破損を起こすという問題を有
していた。Problems to be Solved by the Invention In the conventional configuration described above, the connecting pipe 12 is a suction pipe 9 in the form of a tightly coiled spring. Suction muffler 10. After passing through the connecting pipe section 12, the suction gas passes through the cylinder head 6 and is sucked into the cylinder e, but the cylinder head 5 is heated by the heat generated from the compression element 4 and the discharged gas, and the suction gas passes through the cylinder e. Since the temperature becomes higher than that of the suction muffler 10 and the connecting pipe section 12, which are cooled, the cylinder rad 5 expands and the connecting pipe section 12, which is press-inserted into the cylinder head 6, receives a compressive force (not shown). This has caused problems such as cracking, cracking, or damage.
本発明は、上記欠点に対し直接吸込マフラの目的を変え
ることなく接続部の亀裂又は破損を防止し吸込マフラの
信頼性を向上させる密閉型電動圧縮機を提供するもので
ある。The present invention addresses the above-mentioned drawbacks by providing a hermetic electric compressor that prevents cracks or breakage of the connection parts and improves the reliability of the suction muffler without changing the purpose of the direct suction muffler.
問題点を解決するための手段
上記問題点を解決するために本発明の密閉型電動圧縮機
は、シリンダヘッドの吸込孔の内周に沿って環状溝を形
成し、この環状溝内に０リングを介在し、吸込マフラの
連通部とシリンダヘッドの吸込孔の内周面とを係合する
構成としたものである。Means for Solving the Problems In order to solve the above problems, the hermetic electric compressor of the present invention has an annular groove formed along the inner periphery of the suction hole of the cylinder head, and an O-ring installed in the annular groove. The communication portion of the suction muffler and the inner circumferential surface of the suction hole of the cylinder head are engaged with each other.
作 用
上記した構成によれば、シリダヘッドと連通部とが０リ
ングを介在して係合することによシシリンダヘフド吸込
孔近傍の熱歪が少なくなり、連通部の亀裂又は破損が防
止される。Effects According to the above-described configuration, the cylinder head and the communicating portion are engaged with each other through the O-ring, thereby reducing thermal strain in the vicinity of the cylinder head suction hole and preventing cracking or damage of the communicating portion.
実施例
以下、本発明の一実施例について第１図及び第２図を参
照しながら説明する。EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2.
第１図及び第２図は、本発明の密閉型電動圧縮機の構造
を示す。1 and 2 show the structure of the hermetic electric compressor of the present invention.
図において、前記従来例と同じ符号を付したものは、前
記従莱例と同一構成であるので、詳柚な説明は省略する
。In the drawings, the same reference numerals as those in the conventional example have the same configurations as in the conventional example, so a detailed explanation will be omitted.
第１図及び第２図は、本発明の一実施例の密閉型電動圧
縮機を示すものである。第１図において、２１は本発明
の密閉型電動圧縮機である。２２は吸込ガス導入路であ
り、密閉容器２３に固定し、内方にて上方に立ち上る吸
込管２４と、前記吸込管２４に下端を圧入固定した密着
コイルバネ２６と、前記密着コイルバネ２６の上端に圧
入固定した挿入管２６から成っている。２７は吸込マフ
ラで、マフラ室２７″を形成する本体部２７′と連通部
２８から構成されている。1 and 2 show a hermetic electric compressor according to an embodiment of the present invention. In FIG. 1, 21 is a hermetic electric compressor of the present invention. Reference numeral 22 denotes a suction gas introduction passage, which is fixed to the airtight container 23 and has a suction pipe 24 rising upward inwardly, a close coil spring 26 whose lower end is press-fitted into the suction pipe 24, and a close coil spring 26 at the upper end of the close coil spring 26. It consists of an insertion tube 26 that is press-fitted and fixed. Reference numeral 27 denotes a suction muffler, which is composed of a main body portion 27' forming a muffler chamber 27'' and a communication portion 28.
第２図は吸込マ７フ側面断面図を示しておシ、連通部２
８は一端が吸込マフラ２７の本体部２１と嵌合し、他端
はシリンダ１ツド２ｅの吸込孔幻に位置し、バルブプレ
ート３３の吸込口３４に対−向せしめる。３２は環状溝
で吸込孔３ｏの内周面３σに沿って形成され０リング３
１を介在して、連通部２８と吸込孔３０の内周面３０’
とを係合し吸込マット２フ０本体部２７′とシリンダヘ
ッド９の吸込孔３０ｔ？連通させている。３６は吐出室
、３６はバルブプレート３３に設けられた吸込口３４を
開閉する吸込バルブリード、３７はシリンダ、３８は前
記シリンダ３７内に挿入されたピストンである。Figure 2 shows a side sectional view of the suction muff 7.
One end of the valve 8 fits into the main body 21 of the suction muffler 27, and the other end is located in front of the suction hole of the cylinder 1 and 2e, and is opposed to the suction port 34 of the valve plate 33. 32 is an annular groove formed along the inner peripheral surface 3σ of the suction hole 3o.
1, the communication portion 28 and the inner circumferential surface 30' of the suction hole 30.
The suction mat 2F0 body part 27' and the suction hole 30t of the cylinder head 9 are engaged with each other. It communicates. 36 is a discharge chamber, 36 is a suction valve reed for opening and closing a suction port 34 provided in the valve plate 33, 37 is a cylinder, and 38 is a piston inserted into the cylinder 37.
以上のように構成された密閉型電動圧縮機について、以
下その動作を説明する。The operation of the hermetic electric compressor configured as above will be described below.
電動要素２が起動すると、ピストン３８がシリンダ３７
内を往復し、戻り冷媒ガスを吸込、圧縮。When the electric element 2 is activated, the piston 38 moves into the cylinder 37.
The refrigerant gas is sucked in and compressed.
吐出する。Exhale.
この時、ピストン３Ｂの往復により発生する熱や、吐出
される冷媒ガスの温度により、シリンダヘッド２９は、
吸込ガス（図示せず）によシ冷却される温度的に低い吸
込マフラ２７の連通部２８の温度以上に高温にさらされ
る。従ってシリンダへラド２９と連通部２８との温度差
は大きく、吸込マフラ２７の材質と異なるアルミニウム
等の材質で形成されたシリンダへラド２９は熱歪により
膨張し、シリンダヘッド２９と保合する吸込マフラ２７
の連通部２８はシリンダヘッド２９の吸込孔３ｏの内側
に熱歪により生ずる力２９′（矢印にて示す）を受ける
。また前記連通部２８は、高温にさらされているシリン
ダへラド２９からの熱を受は変形を起こす。At this time, due to the heat generated by the reciprocation of the piston 3B and the temperature of the discharged refrigerant gas, the cylinder head 29
It is exposed to a high temperature higher than the temperature of the communicating portion 28 of the suction muffler 27, which is cooled by suction gas (not shown). Therefore, the temperature difference between the cylinder head 29 and the communication part 28 is large, and the cylinder head 29, which is made of a material such as aluminum that is different from the material of the suction muffler 27, expands due to thermal strain, and the suction head 29 is engaged with the cylinder head 29. Muffler 27
The communication portion 28 receives a force 29' (indicated by an arrow) caused by thermal strain inside the suction hole 3o of the cylinder head 29. Further, the communication portion 28 receives heat from the cylinder rad 29 which is exposed to high temperature, causing deformation.
以上のように本実施例によれば、シリンダへ、ラド２９
の吸込孔３０の内周面３σに沿って、環状溝３２を形成
し、この環状溝３２内にＱ ＩＪソング１を介在し、吸
込マフラ２７の連通部２８とシリンダへ、ラド２９の吸
込孔３ｏの内周面３０’とを保合させることによシ熱歪
により生ずる力２９′を直接、連通部２８へ伝えること
なく、かつ環状溝３２内に０リング３１を介在すること
によシ、シリンダへラド２９の熱を減少させることがで
きる。As described above, according to this embodiment, the rad 29 to the cylinder
An annular groove 32 is formed along the inner circumferential surface 3σ of the suction hole 30, and the Q IJ song 1 is interposed in the annular groove 32, and the suction hole of the Rad 29 is connected to the communication part 28 of the suction muffler 27 and the cylinder. By holding the inner circumferential surface 30' of the ring 3o, the force 29' caused by thermal strain is not directly transmitted to the communication part 28, and by interposing the O ring 31 in the annular groove 32, , the heat in the cylinder rad 29 can be reduced.
発明の効果
以上のように本発明は、吸込孔を有したシリンダヘッド
と、連通部とマフラ室を形成する本体部とから成る吸込
マフラの連通部との間に、０リングを介在し、吸込マフ
ラの連通部をシリンダヘッドに保合したことにより、吸
込マフラ連通部の亀裂又は破損を防止すると共に、シリ
ンダヘッドから受ける熱による連通部の変形を防止し、
吸込マフラの信頼性を向上することができる。Effects of the Invention As described above, the present invention provides an O-ring interposed between a cylinder head having a suction hole and a communication portion of a suction muffler that is composed of a communication portion and a main body portion forming a muffler chamber. By fixing the communication part of the muffler to the cylinder head, the suction muffler communication part is prevented from cracking or being damaged, and the communication part is prevented from being deformed due to heat received from the cylinder head.
The reliability of the suction muffler can be improved.
第１図は本発明の一実施例における密閉型電動圧縮機の
断面図、第２図は上記密閉型電動圧縮機の要部拡大断面
図、第３図は従来の密閉型電動圧縮機の断面図、第４図
は上記密閉型電動圧縮機の要部拡大断面図である。
２・・・・・・電動要素、４・・・・・・圧縮要素、２
１・・・・・・密閉型電動圧縮機、２３・・・・・・密
閉容器、２７・・・・・・吸込マフラ、２７′・・・・
・・本体部、２ｆ・・・・・・マフラ室、２８・・・・
・・連通部、２９・・・・・・シリンダヘッド、３０・
・・・・・吸込孔、３１・・・・・・０リング。
代理人の氏名 弁理士 中 尾 敏 男 ほか１名２１
＝ ’ＡＴＩ型電動圧締次・
ｚ３− お閉容各
第 ３ 図
霞 ４ 図Fig. 1 is a sectional view of a hermetic electric compressor according to an embodiment of the present invention, Fig. 2 is an enlarged sectional view of main parts of the above-mentioned hermetic electric compressor, and Fig. 3 is a sectional view of a conventional hermetic electric compressor. 4 are enlarged cross-sectional views of essential parts of the hermetic electric compressor. 2... Electric element, 4... Compression element, 2
1... Sealed electric compressor, 23... Sealed container, 27... Suction muffler, 27'...
...Main unit, 2f...Muffler room, 28...
...Communication section, 29...Cylinder head, 30.
...Suction hole, 31...0 ring. Name of agent: Patent attorney Toshio Nakao and 1 other person21
= 'ATI type electric pressure clamping/z3- Closing capacity each Figure 3 Kasumi Figure 4
Claims (1)
素を形成する吸込孔を有したシリンダヘッドと、連通部
とマフラ室を形成する本体部とから成る吸込マフラの連
通部との間に、Ｏリングを介在し、吸込マフラの連通部
をシリンダヘッドに係合したことを特徴とする密閉型電
動圧縮機。An electric element and a compression element are housed in a sealed container, and between a cylinder head having a suction hole forming the compression element and a communication part of a suction muffler consisting of a communication part and a main body part forming a muffler chamber. A hermetic electric compressor, characterized in that a communication part of a suction muffler is engaged with a cylinder head through an O-ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62277648A JPH01121575A (en) | 1987-11-02 | 1987-11-02 | Closed type electrically driven compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62277648A JPH01121575A (en) | 1987-11-02 | 1987-11-02 | Closed type electrically driven compressor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01121575A true JPH01121575A (en) | 1989-05-15 |
Family
ID=17586352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62277648A Pending JPH01121575A (en) | 1987-11-02 | 1987-11-02 | Closed type electrically driven compressor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01121575A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05126050A (en) * | 1991-03-28 | 1993-05-21 | Tecumseh Prod Co | Integrated absorption system |
| JPH0942152A (en) * | 1995-07-27 | 1997-02-10 | Samsung Electronics Co Ltd | Reciprocating type compressor |
-
1987
- 1987-11-02 JP JP62277648A patent/JPH01121575A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05126050A (en) * | 1991-03-28 | 1993-05-21 | Tecumseh Prod Co | Integrated absorption system |
| JPH0942152A (en) * | 1995-07-27 | 1997-02-10 | Samsung Electronics Co Ltd | Reciprocating type compressor |
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