JP2728755B2 - Scroll compressor - Google Patents

Scroll compressor

Info

Publication number
JP2728755B2
JP2728755B2 JP1340845A JP34084589A JP2728755B2 JP 2728755 B2 JP2728755 B2 JP 2728755B2 JP 1340845 A JP1340845 A JP 1340845A JP 34084589 A JP34084589 A JP 34084589A JP 2728755 B2 JP2728755 B2 JP 2728755B2
Authority
JP
Japan
Prior art keywords
scroll
movable scroll
regulating
fixed
movable
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 - Lifetime
Application number
JP1340845A
Other languages
Japanese (ja)
Other versions
JPH03202689A (en
Inventor
孝志 伴
雄二 泉
哲夫 吉田
達志 森
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.)
Toyota Industries Corp
Original Assignee
Toyoda Jidoshokki Seisakusho KK
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 Toyoda Jidoshokki Seisakusho KK filed Critical Toyoda Jidoshokki Seisakusho KK
Priority to JP1340845A priority Critical patent/JP2728755B2/en
Publication of JPH03202689A publication Critical patent/JPH03202689A/en
Application granted granted Critical
Publication of JP2728755B2 publication Critical patent/JP2728755B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 [産業上の利用分野] 本発明はハウジング内に収容された固定スクロール
と、該固定スクロールに対向して自転不能かつ公転可能
に設けられた可動スクロールとの間に可動スクロールの
公転に基づいて容積減少する密閉空間を形成するスクロ
ール型圧縮機に関するものである。
DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention is movable between a fixed scroll housed in a housing and a movable scroll provided so as to be non-rotatable and revolvable opposite to the fixed scroll. The present invention relates to a scroll compressor that forms a closed space whose volume decreases based on the revolution of a scroll.

[従来の技術] 従来、スクロール型圧縮機における可動スクロールの
公転機構としては、例えば第6図に示すもの(特開昭57
−137649号公報)が知られている。この機構では可動ス
クロール41の端面とそれに対向するハウジング42の対向
面とに凹部形成板43,44を複数のピン45等により固定し
て、それらの凹部形成板43,44に設けられた円形透孔に
より、可動スクロール41の端面及びハウジング42の対向
面にそれぞれ複数の凹部46,47を円環状に配列形成し、
各対向凹部46,47間には円柱素子48をそれぞれ介装して
いる。そして、この公転機構では、ガス圧縮時において
可動スクロール41に加えられるスラスト方向の荷重が円
柱素子48の両端面と凹部46,47底面との接触により受け
止められるとともに、ラジアル方向の荷重が円柱素子48
の外周面と凹部46,47の内周面との接触により受け止め
られて、可動スクロール41の自転阻止が行われるととも
に、公転が許容される。なお、凹部形成板43,44を設け
ずに、可動スクロール41の端面及びハウジング42の対向
面にそれぞれ複数の凹部を直接形成したり、円柱素子48
に代えてボール素子を使用する構成のものが知られてい
る。
2. Description of the Related Art Conventionally, as a revolving mechanism of a movable scroll in a scroll type compressor, for example, the one shown in FIG.
No. 137649) is known. In this mechanism, the concave forming plates 43, 44 are fixed to the end surface of the movable scroll 41 and the opposing surface of the housing 42 by a plurality of pins 45 or the like, and the circular transparent plates provided on the concave forming plates 43, 44 are provided. By the holes, a plurality of concave portions 46, 47 are respectively formed in an annular array on the end surface of the movable scroll 41 and the opposing surface of the housing 42,
A cylindrical element 48 is interposed between the opposed concave portions 46 and 47, respectively. In this revolving mechanism, the load in the thrust direction applied to the orbiting scroll 41 at the time of gas compression is received by the contact between both end surfaces of the cylindrical element 48 and the bottoms of the concave portions 46 and 47, and the load in the radial direction is reduced by the cylindrical element 48.
Is received by the contact between the outer peripheral surface of the movable scroll 41 and the inner peripheral surfaces of the concave portions 46 and 47, the rotation of the movable scroll 41 is prevented, and the orbital rotation is allowed. Note that, without providing the recess forming plates 43 and 44, a plurality of recesses are directly formed on the end surface of the orbiting scroll 41 and the facing surface of the housing 42, respectively.
A configuration using a ball element in place of is known.

[発明が解決しようとする課題] 前記従来の機構の凹部46,47と円柱素子48の位置関係
は第7図に示すようになり、可動スクロール41が同図の
時計方向に回転するとき、A及びBの位置の凹部46は矢
印方向すなわちその内周面が円柱素子48の外周面を押圧
する方向に移動するが、D及びEの位置の凹部46は矢印
方向すなわちその内周面が円柱素子48の外周面から離間
する方向に移動することになる。又、C及びFの位置の
凹部46はその移動に際して円柱素子48に作用する力の方
向が変更される状態にある。従って、複数の円柱素子48
がそれぞれ独立した状態にある従来の構成では、圧縮機
の運転時に荷重が十分掛からないものは凹部46,47の内
周面との間に遊びが生じ、異音が発生するという不都合
がある。又、円柱素子48あるいはボール素子を組付ける
場合に手間が掛かるという問題もある。
[Problems to be Solved by the Invention] The positional relationship between the concave portions 46 and 47 of the conventional mechanism and the cylindrical element 48 is as shown in FIG. 7, and when the movable scroll 41 rotates clockwise in FIG. And the concave portion 46 at the position B moves in the direction of the arrow, that is, the direction in which the inner peripheral surface thereof presses the outer peripheral surface of the cylindrical element 48. 48 will move away from the outer peripheral surface. The direction of the force acting on the cylindrical element 48 at the time of movement of the concave portions 46 at the positions C and F is changed. Therefore, a plurality of cylindrical elements 48
However, in the conventional configuration in which the compressors are independent of each other, there is an inconvenience that when a load is not sufficiently applied during operation of the compressor, play occurs between the compressor and the inner peripheral surfaces of the concave portions 46 and 47, and abnormal noise is generated. In addition, there is a problem that it takes time to assemble the cylindrical element 48 or the ball element.

特開昭60−111080号公報には組付けを簡単にすること
を目的として、第8,9図に示すように可動スクロールの
自転阻止機構を構成する多数のボール素子49を円環状の
ボール保持部50に組付けたものが開示されている。この
構成により組付けが容易になるとともに、この発明者の
意図していなかった異音発生の減少効果も結果として生
じる。ところが、この構成ではボール保持器50は各ボー
ル素子49を一体的に取り扱い可能にしているだけで、第
8図に示すようにボール保持器50はスラスト荷重やラジ
カル荷重を担うことはなく、これらの荷重はボール素子
49が担っている。そして、スラスト荷重が特に大きいと
きに、ボール素子との接触が点接触のため、ボール素子
49あるいはボール素子49との接触部が摩耗し易くなると
いう問題がある。そのためボール素子49のスラスト荷重
を受け止めるレース51,52を設けているが、耐久性が低
下するという問題がある。この摩耗の問題は軽量化のた
め可動スクロール等をアルミニウム製にした場合顕著と
なる。
Japanese Patent Application Laid-Open No. 60-111080 discloses, for the purpose of simplifying the assembly, a number of ball elements 49 constituting a rotation preventing mechanism of a movable scroll as shown in FIGS. The one assembled to the unit 50 is disclosed. With this configuration, assembling is facilitated, and an undesired noise reduction effect not intended by the inventor is also obtained. However, in this configuration, the ball retainer 50 only allows the respective ball elements 49 to be integrally handled, and as shown in FIG. 8, the ball retainer 50 does not bear a thrust load or a radical load. Load of ball element
49 is responsible. When the thrust load is particularly large, the contact with the ball element is a point contact.
There is a problem that a contact portion with the ball element 49 or the ball element 49 is easily worn. Therefore, the races 51 and 52 for receiving the thrust load of the ball element 49 are provided, but there is a problem that durability is reduced. This problem of wear becomes significant when the movable scroll or the like is made of aluminum for weight reduction.

本発明は前記の問題点に鑑みてなされたものであっ
て、その目的は騒音の発生を抑えることができ、しかも
組付けが容易で耐久性に優れた可動スクロールの公転機
構を備えたスクロール型圧縮機を提供することにある。
SUMMARY OF THE INVENTION The present invention has been made in view of the above-described problems, and has as its object to reduce the generation of noise, and to provide a scroll type revolving mechanism of a movable scroll which is easy to assemble and has excellent durability. An object of the present invention is to provide a compressor.

[課題を解決するための手段] 前記の目的を達成するため本発明においては、ハウジ
ング内に収容された固定スクロールと、該固定スクロー
ルに対向して自転不能かつ公転可能に設けられた可動ス
クロールとの間に可動スクロールの公転に基づいて容積
減少する密閉空間を形成するスクロール型圧縮機におい
て、可動スクロールの渦巻部の反対側と、それに対向す
る固定部材側とにそれぞれ複数個の円形状の凹部を円環
状に形成し、各凹部に挿入される複数の規制突部を両面
に突設した円環状をなす単一の規制板を、前記各規制突
部の先端を各凹部の底面から離間させて前記可動スクロ
ール及び固定部材の両対向面間に挟持して前記可動スク
ロールの自転を阻止して公転を許容するとともに可動ス
クロールから固定部材に作用する荷重を受け止める機構
を構成した。
Means for Solving the Problems In order to achieve the above object, according to the present invention, a fixed scroll accommodated in a housing and a movable scroll provided so as to be non-rotatable and revolvable opposed to the fixed scroll are provided. A scroll-type compressor that forms a closed space whose volume is reduced based on the revolution of the movable scroll, wherein a plurality of circular concave portions are respectively formed on the opposite side of the spiral portion of the movable scroll and on the fixed member side opposed thereto. Is formed into an annular shape, and a single annular regulating plate having a plurality of regulating protrusions inserted into each recess protruding on both sides is separated from the bottom surface of each recess by the tip of each regulation protrusion. The movable scroll and the fixed member are sandwiched between both opposing surfaces to prevent rotation of the movable scroll and allow revolving, and receive a load acting on the fixed member from the movable scroll. A stopping mechanism was configured.

[作用] 本発明のスクロール型圧縮機において、可動スクロー
ルが公転作動されて圧縮が行われると、可動スクロール
は円環状をなす単一の規制板の両面に一体的に突設され
た複数の規制突部が凹部の内周面にそれぞれ係合するこ
とにより固定部材に受け止められ、公転を許容されなが
ら自転が規制される。規制突部は対向する凹部の内周面
間に挟み込まれつつ公転動作に追随して相対的に周回す
る。各規制突部は円環状をなす単一の規制板に一体的に
形成されているため、可動スクロール側の凹部内周面か
らの荷重が掛からない状態にある規制突部も常に固定部
材側の凹部内周面に当接した状態に保持され、固定部材
側の凹部内周面に対して接離することによる異音(騒
音)の発生が低減される。又、円環状をなす単一の規制
板は可動スクロール及び固定部材の両対向面間に挟持さ
れ、スラスト荷重が各規制突部ではなく該規制板により
担われる。このため、規制板は広い面積で面接触した状
態にあるため応力集中が起こらず摩耗し難くなる。
[Operation] In the scroll-type compressor of the present invention, when the movable scroll is revolved and compressed, the movable scroll is provided with a plurality of restrictors integrally protruding on both surfaces of a single annular restricting plate. The protrusion is received by the fixing member by engaging with the inner peripheral surface of the concave portion, and the rotation is restricted while revolving. The restricting projections relatively orbit following the revolving motion while being sandwiched between the inner peripheral surfaces of the opposing concave portions. Since each regulating projection is formed integrally with a single annular regulating plate, the regulating projection in a state where no load is applied from the inner circumferential surface of the concave portion on the movable scroll side is also always formed on the fixed member side. It is held in a state of contact with the inner peripheral surface of the concave portion, and generation of abnormal noise (noise) caused by coming into contact with and separating from the inner peripheral surface of the concave portion on the fixing member side is reduced. Further, the single annular regulating plate is sandwiched between the opposing surfaces of the orbiting scroll and the fixed member, and the thrust load is carried by the regulating plate, not by each regulating projection. For this reason, since the regulating plate is in surface contact with a large area, stress concentration does not occur and the regulating plate is hardly worn.

[実施例1] 以下、本発明を具体化した第1実施例を第1〜3図に
従って説明する。
Embodiment 1 Hereinafter, a first embodiment of the present invention will be described with reference to FIGS.

第1図に示すようにフロントハウジング1とリヤハウ
ジング2とはハウジングの一部を構成する環状の固定部
材としての固定基板3を挟んで接合固定され、フロント
ハウジング1内に収容された回転軸4の大径部4aには偏
心軸5がリヤハウジング2内に突設されている。偏心軸
5にはバランスウエイト6及びブッシュ7が回転可能に
支持され、ブッシュ7には可動スクロール8が回動可能
に支持されている。リヤハウジング2内には固定スクロ
ール9が可動スクロール8と対向する状態で収容固定さ
れ、両スクロール8,9の基端壁8a,9a及び渦巻部8b,9bに
より密閉空間(圧縮空間)Pが形成されるようになって
いる。
As shown in FIG. 1, a front housing 1 and a rear housing 2 are joined and fixed with a fixed substrate 3 as an annular fixing member constituting a part of the housing interposed therebetween, and a rotating shaft 4 housed in the front housing 1. An eccentric shaft 5 protrudes into the rear housing 2 at the large diameter portion 4a. A balance weight 6 and a bush 7 are rotatably supported by the eccentric shaft 5, and a movable scroll 8 is rotatably supported by the bush 7. A fixed scroll 9 is accommodated and fixed in the rear housing 2 so as to face the orbiting scroll 8, and a closed space (compression space) P is formed by the base end walls 8 a and 9 a and the spiral portions 8 b and 9 b of the scrolls 8 and 9. It is supposed to be.

可動スクロール8の基端壁8aの裏面すなわち渦巻部8b
の反対側には円形状の凹部としての公転位置規制孔10が
複数個円環状に配置形成されている。又、可動スクロー
ル8と対向する固定基板3の可動スクロール8と対向す
る面には前記公転位置規制孔10と同じ大きさの円形状の
公転位置規制孔11が同数形成されている。可動スクロー
ル8と固定基板3の両対向面間には規制板12が挟持され
ている。
The back surface of the base end wall 8a of the movable scroll 8, that is, the spiral portion 8b
On the opposite side, a plurality of revolution position regulating holes 10 as circular concave portions are formed in an annular shape. The same number of circular revolving position restricting holes 11 as the revolving position restricting holes 10 are formed on the surface of the fixed substrate 3 facing the movable scroll 8 facing the movable scroll 8. A regulating plate 12 is sandwiched between the opposing surfaces of the movable scroll 8 and the fixed substrate 3.

規制板12は第3図に示すように円環状に形成されると
ともに、前記両公転位置規制孔10,11と同数の円柱部材1
3がその両端部が規制板12の両側に突出して規制突部13
a,13bを形成する状態で等間隔位置に嵌着固定されてい
る。両規制突部13a,13bの突出長さは各公転位置規制孔1
0,11の深さより小さく形成されている。そして、第2図
に鎖線で示すように全ての規制突部13a,13bが偏心軸5
の公転によって公転位置規制孔10,11間に挟み込まれな
がら同一方向に公転位置規制孔10,11の周縁を周回し、
可動スクロール8が自転することなく公転するようにな
っている。
The regulating plate 12 is formed in an annular shape as shown in FIG. 3 and has the same number of cylindrical members 1 as the two revolution position regulating holes 10 and 11.
3 has both ends protruding on both sides of the regulating plate 12 and regulating protrusions 13
They are fitted and fixed at equal intervals in a state where a and 13b are formed. The protruding length of both regulating projections 13a and 13b is
It is formed smaller than the depth of 0,11. Then, as shown by the dashed line in FIG. 2, all the regulating projections 13a, 13b
Orbiting around the periphery of the orbital position regulating holes 10, 11 in the same direction while being sandwiched between the orbital position regulating holes 10, 11 by the orbit of
The movable scroll 8 revolves without rotating.

フロントハウジング1には冷媒ガス導入用の吸入通路
14が形成され、固定基板3には吸収通路14から吸入室1a
に導入された冷媒ガスを両スクロール8,9間へ導く通路3
aが形成されている。固定スクロール9の基端壁9aの中
心部には、基端壁9aの背面側に設けられた吐出室15に連
通するとともに吐出弁16により開放可能に閉塞される吐
出口9cが形成されている。
A suction passage for introducing refrigerant gas is provided in the front housing 1.
14 is formed, and the suction chamber 1a
3 that guides the refrigerant gas introduced into the space between the scrolls 8 and 9
a is formed. At the center of the base end wall 9a of the fixed scroll 9, there is formed a discharge port 9c which communicates with a discharge chamber 15 provided on the back side of the base end wall 9a and which is closed openably by a discharge valve 16. .

次に前記のように構成された圧縮機の作用を説明す
る。
Next, the operation of the compressor configured as described above will be described.

回転軸4の回転に伴い偏心軸5が偏心回転され、これ
によって規制板12に突設された規制突部13a,13bが公転
位置規制孔10,11の内周面に接触した状態で、可動スク
ロール8が自転を阻止されつつ公転する。可動スクロー
ル8の公転により可動スクロール8の渦巻部8bが固定ス
クロール9の渦巻部9bに局部的に接触しながら第2図の
時計方向に公転されると、両渦巻部8b,9bの接触部が渦
巻部9bの内周面上を中心に向かって移動し、二つの接触
部間に形成される密閉空間Pが吸入通路14から圧縮機に
導入された冷媒ガスを圧縮しながら徐々に中心側へ移動
され、圧縮された冷媒ガスは吐出弁16により開放可能に
閉塞されている吐出口9cから吐出室15内へ吐出される。
The eccentric shaft 5 is eccentrically rotated with the rotation of the rotating shaft 4, whereby the restricting projections 13 a and 13 b protruding from the restricting plate 12 come into contact with the inner peripheral surfaces of the revolving position restricting holes 10 and 11 and are movable. The scroll 8 revolves while being prevented from rotating. When the spiral portion 8b of the movable scroll 8 revolves clockwise in FIG. 2 while locally contacting the spiral portion 9b of the fixed scroll 9 by the revolution of the movable scroll 8, the contact portions of the spiral portions 8b and 9b The spiral space 9b moves toward the center on the inner peripheral surface, and the sealed space P formed between the two contact portions gradually compresses the refrigerant gas introduced into the compressor from the suction passage 14 toward the center. The moved and compressed refrigerant gas is discharged into the discharge chamber 15 from the discharge port 9c which is openably closed by the discharge valve 16.

可動スクロール8が公転する際、全ての規制突部13a
に対して可動スクロール8側の公転位置規制孔10の内周
面からの荷重が常に掛かるのではなく、公転位置規制孔
10の内周面からの荷重が掛からない状態となる規制突部
13aが常に存在する。この公転位置規制孔10の内周面か
らの荷重が掛からない状態となる規制突部13aは可動ス
クロール8の公転に伴い順次交代する。そのため、各規
制突部13aが独立した状態であると、公転位置規制孔10
の内周面からの荷重が掛からない状態のとき当該円柱部
材13を固定基板3側の公転位置規制孔11の内周面に押圧
する作用がなくなり、該円柱部材13が公転位置規制孔11
の内周面から離間するようになる。そして、再び当該規
制突部13aに公転位置規制孔10の内周面からの荷重が掛
かったときに、再度当該円柱部材13が公転位置規制孔11
の内周面に当接するということが繰り返されて異音(騒
音)の原因となる。しかし、各規制突部13a,13bは規制
板12を介して一体的に形成されているため、可動スクロ
ール8側の公転位置規制孔10の内周面からの荷重が掛か
らない状態にある規制突部13aと対応する規制突部13bも
常に固定基板3側の公転位置規制孔11の内周面に当接し
た状態に保持され、規制突部13bが公転位置規制孔11の
内周面に対して接離することによる異音(騒音)の発生
が低減される。
When the orbiting scroll 8 revolves, all the regulating projections 13a
The load from the inner peripheral surface of the orbiting position restricting hole 10 on the movable scroll 8 side is not always applied to the
Restriction protrusion that prevents load from the inner peripheral surface of 10
13a is always present. The restricting projections 13a, in which the load from the inner peripheral surface of the revolving position restricting hole 10 is not applied, are sequentially changed with the revolving of the movable scroll 8. Therefore, when each of the regulating protrusions 13a is in an independent state, the revolution position regulating hole 10
When the load from the inner peripheral surface is not applied, there is no action to press the cylindrical member 13 against the inner peripheral surface of the revolving position regulating hole 11 on the fixed substrate 3 side, and the cylindrical member 13
Is separated from the inner peripheral surface. Then, when the load from the inner peripheral surface of the revolving position restricting hole 10 is again applied to the restricting projection 13a, the columnar member 13 is again moved to the revolving position restricting hole 11.
Repeatedly contacting the inner peripheral surface of the device causes abnormal noise (noise). However, since each of the restricting projections 13a and 13b is formed integrally with the restricting plate 12 therebetween, the restricting protrusions in a state where no load is applied from the inner peripheral surface of the revolving position restricting hole 10 on the movable scroll 8 side. The regulating projection 13b corresponding to the portion 13a is also always kept in contact with the inner peripheral surface of the revolving position regulating hole 11 on the fixed substrate 3 side. The generation of abnormal noise (noise) due to contact and separation is reduced.

又、規制板12は可動スクロール8及び固定基板3の対
向面間に挟持され、圧縮作用に伴い可動スクロール8に
作用するスラスト方向荷重が規制板12を介して固定基板
3に受け止められる。規制板12は広い面積で面接触した
状態でスラスト荷重を担い、しかも両規制突部13a,13b
の先端が公転位置規制孔10,11の底面から離間した状態
にあるため、円柱素子あるいはボール素子でスラスト荷
重を担う従来装置と異なり応力集中が起こらず、摩耗し
難くなる。
The regulating plate 12 is sandwiched between the opposing surfaces of the movable scroll 8 and the fixed substrate 3, and a thrust load acting on the movable scroll 8 due to the compression action is received by the fixed substrate 3 via the regulating plate 12. The regulating plate 12 bears the thrust load in a state of being in surface contact with a large area, and furthermore, both regulating projections 13a, 13b
Since the front end is separated from the bottom surfaces of the revolving position regulating holes 10 and 11, stress concentration does not occur unlike a conventional device in which a cylindrical element or a ball element bears a thrust load, and wear is less likely.

又、圧縮機の組立て時には、規制板12を可動スクロー
ル8及び固定基板3の対向面間に挟持することにより、
可動スクロール8の自転を阻止する円柱部材13が全て所
定位置に組立けられ、公転機構の組付けが容易となる。
Also, when assembling the compressor, the regulating plate 12 is sandwiched between the opposing surfaces of the movable scroll 8 and the fixed substrate 3 so that
All the cylindrical members 13 for preventing the rotation of the orbiting scroll 8 are assembled at predetermined positions, so that the revolving mechanism can be easily assembled.

[実施例2] 次に第2実施例を第4図に従って説明する。この実施
例では規制板12の各規制突部13a,13bの近傍位置に、各
公転位置規制孔10,11と対応する状態で溝12a,12bを形成
した点が前記実施例と異なっている。このように構成し
た場合は、規制板12と可動スクロール8及び固定基板3
との対向面との間、あるいは各公転位置規制孔10,11内
面と規制突部13a,13b間の潤滑等を行うため、吸入冷媒
ガスに含まれるミスト状の潤滑油の供給が溝12a,12bを
介してより円滑に行われるとともに、規制板12と可動ス
クロール8及び固定基板3との接触面積が少なくなって
可動スクロール8が公転する際の摺動抵抗が少なくな
る。
Second Embodiment Next, a second embodiment will be described with reference to FIG. This embodiment is different from the previous embodiment in that grooves 12a and 12b are formed at positions near the restriction protrusions 13a and 13b of the restriction plate 12 in a state corresponding to the revolution position restriction holes 10 and 11, respectively. In the case of such a configuration, the regulating plate 12, the movable scroll 8, and the fixed substrate 3
The lubricating oil contained in the suction refrigerant gas is supplied to the grooves 12a, 12b to lubricate between the opposing surfaces or between the inner surfaces of the respective revolution position regulating holes 10, 11 and the regulating protrusions 13a, 13b. The operation can be performed more smoothly through 12b, and the contact area between the regulating plate 12, the movable scroll 8 and the fixed substrate 3 is reduced, and the sliding resistance when the movable scroll 8 revolves is reduced.

なお、本発明は前記実施例に限定されるものではな
く、例えば、公転位置規制孔10,11及び規制突部13a,13b
の数を変更したり、規制突部13a,13bの形状を円柱状に
代えて円筒状あるいは半球状としてもよい。又、公転位
置規制孔10,11を固定基板3及び可動スクロール8の対
向面に直接形成する代わりに、固定基板3及び可動スク
ロール8に円環状の板をそれぞれ固定するとともに各板
に公転位置規制孔10,11を形成してもよい。さらには、
第5図に示すように固定基板3及び基端壁8aに公転位置
規制孔10,11を吸入圧領域に連通させる通路17a,17bを形
成するとともに、規制板12には両公転位置規制孔10,11
を連通させる透孔18を形成して両公転位置規制孔10,11
への潤滑油の供給がより円滑に行われるように構成した
り、通路17aに代えて吐出室15の底部と公転位置規制孔1
0とを連通する通路を形成して吐出室15内に溜まる潤滑
油を吐出圧を利用して積極的に両公転位置規制孔10,11
へ供給する構成を採用してもよい。
The present invention is not limited to the above-described embodiment. For example, the revolution position regulating holes 10 and 11 and the regulating protrusions 13a and 13b
May be changed, or the shape of the regulating protrusions 13a, 13b may be cylindrical or hemispherical instead of cylindrical. Also, instead of directly forming the revolving position restricting holes 10 and 11 on the opposing surfaces of the fixed substrate 3 and the movable scroll 8, annular plates are fixed to the fixed substrate 3 and the movable scroll 8, respectively, and the revolving position is restricted to each plate. Holes 10 and 11 may be formed. Moreover,
As shown in FIG. 5, passages 17a and 17b are formed in the fixed base plate 3 and the base end wall 8a so that the revolving position restricting holes 10 and 11 communicate with the suction pressure area. , 11
Are formed so as to communicate with each other, and both revolution position regulating holes 10 and 11 are formed.
The lubricating oil can be supplied smoothly to the bottom of the discharge chamber 15 and the revolving position regulating hole 1 instead of the passage 17a.
The lubricating oil accumulated in the discharge chamber 15 by forming a passage communicating with the positive and negative pressure holes 10 and 11 positively utilizing the discharge pressure.
Alternatively, a configuration for supplying to the storage device may be adopted.

[発明の効果] 以上詳述したように本発明によれば、可動スクロール
の公転機構を構成する各規制突部は円環状をなす単一の
規制板に一体的に形成されているため、組付けが容易に
なるとともに、可動スクロール側の凹部内周面からの荷
重が掛からない状態にある規制突部と対応する固定部材
側の規制突部も常に固定部材側の凹部内周面に当接した
状態に保持され、固定部材側の規制突部が固定部材側の
凹部内周面に対して接離することによる異音(騒音)の
発生が低減される。又、圧縮作用により生じるスラスト
荷重は各規制突部ではなく円環状をなす単一の規制板に
より担われるので、該規制板は広い面積で面接触されて
応力集中が起こらず摩耗し難くなり、耐久性が向上す
る。
[Effects of the Invention] As described in detail above, according to the present invention, since each of the regulating protrusions constituting the orbiting mechanism of the orbiting scroll is formed integrally with a single annular regulating plate, In addition to being easy to attach, the regulating protrusions on the fixed member corresponding to the regulating protrusions in a state where the load from the inner peripheral surface of the movable scroll side is not always applied also contact the inner peripheral surface of the recess on the fixed member side. In this state, the generation of abnormal noise (noise) due to the restricting projection on the fixing member coming into contact with or separating from the inner peripheral surface of the recess on the fixing member is reduced. Also, since the thrust load generated by the compression action is carried by a single annular regulating plate instead of each regulating projection, the regulating plate is in surface contact with a large area, stress concentration does not occur, and wear is reduced, The durability is improved.

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

第1〜3図は本発明を具体化した第1実施例を示すもの
であって、第1図は断面図、第2図は第1図のII−II線
断面図、第3図は規制板の斜視図、第4図は第2実施例
の規制板の斜視図、第5図は変更例の要部断面図、第6
図は従来装置の公転機構の部分断面図、第7図は凹部と
円柱素子の関係を示す略図、第8図は別の従来装置の部
分断面図、第9図はボール保持器の部分斜視図である。 フロントハウジング1、吸入室1a、リヤハウジング2、
固定部材としての固定基板3、可動スクロール8、固定
スクロール9、基端壁8a,9a、渦巻部8b,9b、凹部として
の公転位置規制孔10,11、規制板12、溝12a,12b、円柱部
材13、規制突部13a,13b、通路17a,17b、透孔18、密閉空
間P。
1 to 3 show a first embodiment of the present invention. FIG. 1 is a sectional view, FIG. 2 is a sectional view taken along the line II-II of FIG. 1, and FIG. FIG. 4 is a perspective view of a regulating plate of the second embodiment, FIG. 5 is a sectional view of a main part of a modified example, and FIG.
FIG. 7 is a partial sectional view of a revolving mechanism of a conventional device, FIG. 7 is a schematic view showing a relationship between a concave portion and a cylindrical element, FIG. 8 is a partial sectional view of another conventional device, and FIG. 9 is a partial perspective view of a ball retainer. It is. Front housing 1, suction chamber 1a, rear housing 2,
Fixed substrate 3, movable scroll 8, fixed scroll 9, base end walls 8a, 9a, spiral portions 8b, 9b, revolving position regulating holes 10, 11, as concave portions, regulating plate 12, grooves 12a, 12b, cylinder as fixed member The member 13, the regulating protrusions 13a and 13b, the passages 17a and 17b, the through hole 18, and the closed space P.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 吉田 哲夫 愛知県刈谷市豊田町2丁目1番地 株式 会社豊田自動織機製作所内 (72)発明者 森 達志 愛知県刈谷市豊田町2丁目1番地 株式 会社豊田自動織機製作所内 (56)参考文献 特開 平1−178784(JP,A) 特開 昭61−58993(JP,A) ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Tetsuo Yoshida 2-1-1 Toyota-cho, Kariya-shi, Aichi Prefecture Inside Toyota Industries Corporation (72) Inventor Tatsushi Mori 2-1-1, Toyota-cho, Kariya-shi, Aichi Prefecture Co., Ltd. Inside Toyoda Automatic Loom Works (56) References JP-A-1-178784 (JP, A) JP-A-61-58993 (JP, A)

Claims (1)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】ハウジング内に収容された固定スクロール
と、該固定スクロールに対向して自転不能かつ公転可能
に設けられた可動スクロールとの間に可動スクロールの
公転に基づいて容積減少する密閉空間を形成するスクロ
ール型圧縮機において、 可動スクロールの渦巻部の反対側と、それに対向する固
定部材側とにそれぞれ複数個の円形状の凹部を円環状に
形成し、各凹部に挿入される複数の規制突部を両面に突
設した円環状をなす単一の規制板を、前記各規制突部の
先端を各凹部の底面から離間させて前記可動スクロール
及び固定部材の両対向面間に挟持して前記可動スクロー
ルの自転を阻止して公転を許容するとともに可動スクロ
ールから固定部材に作用する荷重を受け止める機構を構
成したスクロール型圧縮機。
An enclosed space, whose volume is reduced based on the revolution of a movable scroll, between a fixed scroll housed in a housing and a movable scroll provided so as to be non-rotatable and revolvable facing the fixed scroll. In the scroll compressor to be formed, a plurality of circular concave portions are formed in an annular shape on the opposite side of the spiral portion of the orbiting scroll and on the fixed member side opposed to the spiral portion, respectively, and a plurality of restrictors inserted into each concave portion are formed. A single annular regulating plate having projections projecting from both sides is sandwiched between both opposing surfaces of the movable scroll and the fixed member with the tip of each regulation projection separated from the bottom surface of each recess. A scroll compressor having a mechanism for preventing rotation of the movable scroll and allowing revolving and receiving a load acting on a fixed member from the movable scroll.
JP1340845A 1989-12-29 1989-12-29 Scroll compressor Expired - Lifetime JP2728755B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1340845A JP2728755B2 (en) 1989-12-29 1989-12-29 Scroll compressor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1340845A JP2728755B2 (en) 1989-12-29 1989-12-29 Scroll compressor

Publications (2)

Publication Number Publication Date
JPH03202689A JPH03202689A (en) 1991-09-04
JP2728755B2 true JP2728755B2 (en) 1998-03-18

Family

ID=18340835

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1340845A Expired - Lifetime JP2728755B2 (en) 1989-12-29 1989-12-29 Scroll compressor

Country Status (1)

Country Link
JP (1) JP2728755B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR940007377A (en) * 1992-09-30 1994-04-27 이소가이 찌세이 Scroll compressor
JP4398539B2 (en) * 1999-06-01 2010-01-13 サンデン株式会社 Scroll compressor
JP4514493B2 (en) * 2004-04-02 2010-07-28 サンデン株式会社 Scroll type fluid machinery

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6158993A (en) * 1984-08-29 1986-03-26 Nippon Denso Co Ltd Scrol type compressor
JP2590507B2 (en) * 1987-12-29 1997-03-12 株式会社豊田自動織機製作所 Scroll compressor

Also Published As

Publication number Publication date
JPH03202689A (en) 1991-09-04

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