JPH1122642A - Linear compressor - Google Patents
Linear compressorInfo
- Publication number
- JPH1122642A JPH1122642A JP10048442A JP4844298A JPH1122642A JP H1122642 A JPH1122642 A JP H1122642A JP 10048442 A JP10048442 A JP 10048442A JP 4844298 A JP4844298 A JP 4844298A JP H1122642 A JPH1122642 A JP H1122642A
- Authority
- JP
- Japan
- Prior art keywords
- piston
- valve plate
- cylinder
- linear compressor
- compression chamber
- 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.)
- Granted
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B35/00—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for
- F04B35/04—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric
- F04B35/045—Piston pumps specially adapted for elastic fluids and characterised by the driving means to their working members, or by combination with, or adaptation to, specific driving engines or motors, not otherwise provided for the means being electric using solenoids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0005—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00 adaptations of pistons
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/10—Adaptations or arrangements of distribution members
- F04B39/1066—Valve plates
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/121—Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/12—Casings; Cylinders; Cylinder heads; Fluid connections
- F04B39/122—Cylinder block
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2210/00—Working fluid
- F05B2210/10—Kind or type
- F05B2210/12—Kind or type gaseous, i.e. compressible
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S417/00—Pumps
- Y10S417/902—Hermetically sealed motor pump unit
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Compressor (AREA)
- Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明はリニア圧縮機に係
り、さらに詳しくはシリンダとピストンとの構造を改善
してピストンの作動安定性を向上させうるリニア圧縮機
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a linear compressor, and more particularly, to a linear compressor in which the structure of a cylinder and a piston is improved to improve the operation stability of the piston.
【0002】[0002]
【従来の技術】一般に、圧縮機は冷媒を作動流体として
圧縮、凝縮、膨張、蒸発過程を連続的に行う冷凍装置な
どにおいて、冷媒を高温高圧に圧縮させるために使用さ
れる。かかる圧縮機のうちリニア (linear) 圧縮機は、
磁束の方向変化により電磁気的に相互作用するリニアモ
ータを備えてピストンを直線往復動させるものである。2. Description of the Related Art Generally, a compressor is used for compressing a refrigerant to a high temperature and a high pressure in a refrigerating apparatus or the like which continuously performs compression, condensation, expansion and evaporation processes using a refrigerant as a working fluid. Among such compressors, linear compressors are:
A linear motor that interacts electromagnetically with a change in the direction of a magnetic flux is provided to linearly reciprocate a piston.
【0003】図1は従来のリニア圧縮機を示した断面図
であって、同図に示したように、外観を形成する密閉容
器10の内部には圧縮室14を形成するようシリンダブ
ロック15aとシリンダヘッド15bとから構成された
シリンダ15が備えられており、圧縮室14にはピスト
ン13が設けられる。シリンダブロック15aにはリニ
アモータ11が設けられるが、リニアモータ11は外側
と内側とに分離され設けられる1次固定子11aと2次
固定子11b、この固定子11a,11bの間に配置さ
れた永久磁石11cとコイル11dを含む。ピストン1
3の下部にはフランジ12が固定され、このフランジ1
2には前記リニアモータ11の一部を形成する永久磁石
11cが一体に設けられピストン13と共に上下に直線
往復動することになる。シリンダブロック15aの上部
には吸入室19と吐出室20で構成されたシリンダヘッ
ド15bが備えられ、このシリンダヘッド15bとシリ
ンダブロック15aとの間には、吸入弁17と吐出弁1
8とがそれぞれ設けられている弁プレート16が設けら
れる。また、ピストン13の下部にはピストン13を弾
性的に支持して上下運動を行わせる板バネ21が設けら
れている。FIG. 1 is a sectional view showing a conventional linear compressor. As shown in FIG. 1, a cylinder block 15a and a cylinder block 15a are formed so as to form a compression chamber 14 inside a sealed container 10 forming an external appearance. A cylinder 15 including a cylinder head 15b is provided, and a piston 13 is provided in the compression chamber. A linear motor 11 is provided in the cylinder block 15a. The linear motor 11 is disposed between the primary stator 11a and the secondary stator 11b, which are separately provided on the outside and the inside, and is disposed between the stators 11a and 11b. It includes a permanent magnet 11c and a coil 11d. Piston 1
3, a flange 12 is fixed to the lower part of this flange 1.
A permanent magnet 11c that forms a part of the linear motor 11 is integrally provided with the linear motor 2, and reciprocates up and down linearly with the piston 13. A cylinder head 15b including a suction chamber 19 and a discharge chamber 20 is provided above the cylinder block 15a. A suction valve 17 and a discharge valve 1 are provided between the cylinder head 15b and the cylinder block 15a.
8 are provided, respectively. A leaf spring 21 is provided below the piston 13 to elastically support the piston 13 and perform a vertical movement.
【0004】しかし、かかる従来のリニア圧縮機におい
て、ピストン13は前記リニアモータ11の電磁気力に
よりシリンダ15の内部で直線往復動することになる
が、この際ピストン13は常に設定された移動領域、す
なわち上死点と下死点との間で一定に往復動するのが望
ましいが、密閉容器10の内部温度上昇、電圧変動及び
外部衝撃などの要因によりピストン13の移動領域を一
定に保ち難くなる。However, in such a conventional linear compressor, the piston 13 reciprocates linearly inside the cylinder 15 by the electromagnetic force of the linear motor 11, but at this time, the piston 13 always moves in a predetermined moving area, That is, it is desirable to reciprocate constantly between the top dead center and the bottom dead center, but it is difficult to keep the moving area of the piston 13 constant due to factors such as an increase in the internal temperature of the sealed container 10, voltage fluctuations, and external impact. .
【0005】特に、冷媒を圧縮して吐き出させるための
ピストン13の上昇行程時ピストン13が所定の上死点
を越えてピストン13の上部が弁プレート16と衝突す
ることになる場合がたびたび発生する。この衝突が発生
し続けると、結局ピストン13及び弁プレート16が破
損され圧縮機の作動が不可能になる。In particular, it often occurs that the piston 13 exceeds a predetermined top dead center and the upper portion of the piston 13 collides with the valve plate 16 during the upward stroke of the piston 13 for compressing and discharging the refrigerant. . If this collision continues to occur, the piston 13 and the valve plate 16 will eventually be damaged, and the compressor will not be able to operate.
【0006】[0006]
【発明が解決しようとする課題】従って、本発明は前述
した事情に鑑みて案出されたもので、その目的はピスト
ンが移動領域を越えて弁プレートと衝突する際、ピスト
ンと弁プレートに加えられる衝撃を減らすことにより部
品の破損を防止し、ピストンの作動安定性を向上させう
るリニア圧縮機を提供することである。SUMMARY OF THE INVENTION Accordingly, the present invention has been devised in view of the above-mentioned circumstances, and has as its object the purpose of adding the piston and the valve plate when the piston collides with the valve plate beyond the moving area. An object of the present invention is to provide a linear compressor capable of preventing damage to parts by reducing impacts to be received and improving operational stability of a piston.
【0007】[0007]
【課題を解決するための手段】前述した目的を達成する
ために本発明は、密閉容器と、前記密閉容器の内部に圧
縮室を形成するようシリンダブロックとシリンダヘッド
で構成されたシリンダと、前記シリンダに固定されたリ
ニアモータと、前記シリンダの内部に備えられ前記リニ
アモータにより作動するピストンと、前記圧縮室で圧縮
された冷媒の吐き出しを案内する吐出口と前記吐出口を
開閉する吐出弁の設けられた弁プレートと、を備えるリ
ニア圧縮機において、前記シリンダの内部には、前記ピ
ストンと前記弁プレートの衝突時前記ピストンと前記弁
プレートに加えられる衝撃を減らせる緩衝手段が設けら
れていることを特徴とする。In order to achieve the above-mentioned object, the present invention provides a closed container, a cylinder constituted by a cylinder block and a cylinder head for forming a compression chamber inside the closed container, and A linear motor fixed to a cylinder, a piston provided inside the cylinder and operated by the linear motor, a discharge port for guiding the discharge of the refrigerant compressed in the compression chamber, and a discharge valve for opening and closing the discharge port. And a valve plate provided in the cylinder, wherein the cylinder is provided with a shock absorbing means for reducing an impact applied to the piston and the valve plate at the time of collision between the piston and the valve plate. It is characterized by the following.
【0008】また、前記緩衝手段は、その両端がそれぞ
れ前記シリンダヘッドの内側面と前記弁プレートに固定
されたバネにより構成されていることを特徴とする。[0008] Further, the shock-absorbing means is characterized in that both ends thereof are constituted by springs fixed to the inner surface of the cylinder head and the valve plate, respectively.
【0009】[0009]
【発明の実施の形態】以下、添付した図面に基づき本発
明によるリニア圧縮機の望ましい実施の形態を詳述す
る。図2は本発明によるリニア圧縮機を示した断面図で
あり、図3は図2の‘A’部の拡大図である。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a preferred embodiment of a linear compressor according to the present invention will be described in detail with reference to the accompanying drawings. FIG. 2 is a cross-sectional view showing a linear compressor according to the present invention, and FIG. 3 is an enlarged view of a portion 'A' of FIG.
【0010】図示したように、外観をなし吸入管50a
の備えられた密閉容器50が設けられる。密閉容器50
の内部には圧縮室54を形成するようシリンダブロック
55aとシリンダヘッド55bで構成されたシリンダ5
5が備えられており、圧縮室54にはピストン53が設
けられる。シリンダブロック55aにはリニアモータ5
1が備えられるが、リニアモータ51は外側と内側に分
離される1次固定子51aと2次固定子51b、この固
定子51a,51bの間に配置された永久磁石51cと
コイル51dを含む。ピストン53の下部にはフランジ
52が固定され、このフランジ52には前記リニアモー
タ51の一部を形成する永久磁石51cが一定に設けら
れピストン53と共に上下に直線往復動することにな
る。また、ピストン53の下部にはピストン53を弾性
的に支持して上下運動を行わせる板バネ57が設けられ
ている。As shown in FIG.
Is provided. Sealed container 50
Inside the cylinder 5, a cylinder 5 constituted by a cylinder block 55a and a cylinder head 55b so as to form a compression chamber 54.
The compression chamber 54 is provided with a piston 53. The linear motor 5 is mounted on the cylinder block 55a.
1, the linear motor 51 includes a primary stator 51a and a secondary stator 51b which are separated outside and inside, a permanent magnet 51c and a coil 51d disposed between the stators 51a and 51b. A flange 52 is fixed to a lower portion of the piston 53, and a permanent magnet 51c forming a part of the linear motor 51 is provided on the flange 52 at a fixed position. A leaf spring 57 is provided below the piston 53 to resiliently support the piston 53 and perform a vertical movement.
【0011】前記ピストン53は中空の円筒形に設けら
れ、ピストン53の下部一側には吸入管50aを通して
密閉容器50の内部に流入された冷媒がピストン53の
内部の流入されるよう第1流入口53aが形成されてお
り、上部にはピストン53の内部の冷媒を圧縮室54に
流入させる第2流入口53bが形成されている。また、
第2流入口53bを通して圧縮室54の内部に流入され
る冷媒を制御するための流入弁53cがピストン53の
上部の外部に固定され第2流入口53bを開閉する。The piston 53 is provided in a hollow cylindrical shape, and a first flow is provided at one lower side of the piston 53 so that the refrigerant flowing into the closed container 50 through the suction pipe 50a flows into the piston 53. An inlet 53a is formed, and a second inlet 53b through which the refrigerant inside the piston 53 flows into the compression chamber 54 is formed at an upper portion. Also,
An inflow valve 53c for controlling the refrigerant flowing into the compression chamber 54 through the second inflow port 53b is fixed outside the upper portion of the piston 53 to open and close the second inflow port 53b.
【0012】前記シリンダヘッド55bはシリンダブロ
ック55aの上部に備えられ、シリンダヘッド55bと
シリンダブロック55aとの間には弁プレート56が備
えられている。この弁プレート56には圧縮された冷媒
の吐き出しを案内する吐出口56aとこの吐出口56a
を開閉する吐出弁56bが設けられている。そして、シ
リンダヘッド55bの内側面には弁プレート56の移動
を案内する突起59が弁プレート56側に突出されてお
り、この突起59の内部には緩衝手段としてバネ58が
内在されその両端がそれぞれシリンダヘッド55bの内
側面と弁プレート56に固定されているが、これについ
ては後述する。また、この突起59の一側には圧縮室5
4から吐出口56aを通して吐き出される冷媒をシリン
ダヘッド55bに結合された吐出管60に案内するため
に一部切開された切開部59aが形成されている。The cylinder head 55b is provided above the cylinder block 55a, and a valve plate 56 is provided between the cylinder head 55b and the cylinder block 55a. The valve plate 56 has a discharge port 56a for guiding the discharge of the compressed refrigerant, and the discharge port 56a.
A discharge valve 56b that opens and closes is provided. A projection 59 for guiding the movement of the valve plate 56 protrudes from the inner surface of the cylinder head 55b toward the valve plate 56. A spring 58 is provided inside the projection 59 as a damping means. It is fixed to the inner surface of the cylinder head 55b and the valve plate 56, which will be described later. Also, one side of the projection 59 is provided with the compression chamber 5.
A cutout portion 59a is formed to guide the refrigerant discharged from the discharge port 4 through the discharge port 56a to the discharge pipe 60 connected to the cylinder head 55b.
【0013】図4は本発明によるリニア圧縮機のピスト
ンの吸入行程時を示した断面図である。同図によれば、
吸入行程時リニアモータ51の電磁気力によりピストン
53が所定の下死点まで下向き移動すれば、弁プレート
56に設けられた吐出弁56bは閉まり、ピストン53
に設けられた流入弁53cは開くことになる。したがっ
て、ピストン53の内部に流入されていた冷媒は第2流
入口53bを通して圧縮室54の内部に流入される。FIG. 4 is a cross-sectional view of the linear compressor according to the present invention during the suction stroke of the piston. According to FIG.
When the piston 53 moves downward to a predetermined bottom dead center by the electromagnetic force of the linear motor 51 during the suction stroke, the discharge valve 56b provided on the valve plate 56 closes, and the piston 53
Is opened. Accordingly, the refrigerant flowing into the piston 53 flows into the compression chamber 54 through the second inlet 53b.
【0014】図5は本発明によるリニア圧縮機のピスト
ンの吐出行程時を示した断面図である。同図によれば、
冷媒の吸入のために下死点まで下降したピストン53は
再びリニアモータ51の電磁気力により所定の上死点ま
で上昇することにより圧縮室54の内部の冷媒を圧縮す
ることになるが、この際ピストン53に設けられた流入
弁53cは閉まった状態を保つことになる。ピストン5
3の上昇により冷媒が圧縮され所定の圧力に至れば、弁
プレート56に備えられた吐出弁56bは圧縮された冷
媒の圧力により開くことにより、圧縮された冷媒が吐出
口56aを通してシリンダヘッド55bの内部に流入さ
れてから、突起59の切開部59aを通して吐出管60
に案内される。FIG. 5 is a cross-sectional view of the linear compressor according to the present invention during the discharge stroke of the piston. According to FIG.
The piston 53 that has descended to the bottom dead center for the suction of the refrigerant rises again to the predetermined top dead center by the electromagnetic force of the linear motor 51, thereby compressing the refrigerant inside the compression chamber 54. The inflow valve 53c provided in the piston 53 is kept closed. Piston 5
When the refrigerant is compressed by the rise of 3 and reaches a predetermined pressure, the discharge valve 56b provided in the valve plate 56 is opened by the pressure of the compressed refrigerant, so that the compressed refrigerant is discharged from the cylinder head 55b through the discharge port 56a. After flowing into the inside, the discharge pipe 60 passes through the cutout 59 a of the projection 59.
Will be guided to.
【0015】この際、前述したように弁プレート56は
弁プレート56とシリンダヘッド55bとの間に内在さ
れている緩衝手段、すなわちバネ58により支持されて
いるが、このバネ58の弾性係数は圧縮室54の内部で
冷媒の圧縮により発生される圧力に耐えられるよう設け
られるべきである。これはバネ58が圧縮室54の圧力
に耐えられなくて弁プレート56がシリンダヘッド55
b側に移動すれば、冷媒の圧縮が円滑になされにくいか
らである。At this time, as described above, the valve plate 56 is supported by a buffer means provided between the valve plate 56 and the cylinder head 55b, that is, a spring 58. The elastic coefficient of the spring 58 is compressed. Provision should be made to withstand the pressure generated by the compression of the refrigerant inside the chamber 54. This is because the spring 58 cannot withstand the pressure of the compression chamber 54 and the valve plate 56
This is because, if it moves to the b side, it is difficult to smoothly compress the refrigerant.
【0016】一方、ピストン53はリニアモータ51の
電磁気力の作用により所定の上死点と下死点との間を直
線往復動することにより冷媒の吸入、圧縮、吐出行程を
繰り返して行うことになるが、密閉容器50の内部温度
の上昇、電圧変動及び外部衝撃などの要因によりピスト
ン53の移動領域を一定に保つことが困難になる。これ
を詳細に説明すれば、冷媒を圧縮して吐き出させるため
のピストン53の上昇行程時ピストン53が所定の上死
点を越えてピストン53の上部が弁プレート56と衝突
することになる場合が発生することにより、ピストン5
3及び弁プレート56が破損され圧縮機の作動が不可能
になる。On the other hand, the piston 53 linearly reciprocates between a predetermined top dead center and a bottom dead center by the action of the electromagnetic force of the linear motor 51 to repeatedly perform the suction, compression and discharge strokes of the refrigerant. However, it is difficult to keep the movement area of the piston 53 constant due to factors such as an increase in the internal temperature of the sealed container 50, voltage fluctuation, and external impact. In more detail, when the piston 53 for compressing and discharging the refrigerant is in a rising stroke, the piston 53 may exceed a predetermined top dead center and the upper part of the piston 53 may collide with the valve plate 56. The piston 5
3 and the valve plate 56 are damaged, and the compressor cannot operate.
【0017】図6は本発明によるリニア圧縮機のピスト
ンと弁プレートの衝突時を示した断面図であって、これ
に基づきピストンと弁プレートの衝突による衝撃が緩和
される過程を説明する。FIG. 6 is a cross-sectional view showing a collision between the piston and the valve plate of the linear compressor according to the present invention, and the process of reducing the impact due to the collision between the piston and the valve plate will be described.
【0018】ピストン53が上向き移動時、密閉容器1
0の内部温度上昇及び外部衝撃などのような内的、外的
要因により上死点を越えて弁プレート56と衝突すれ
ば、弁プレート56はこれを支持する緩衝手段であるバ
ネ58の弾性力に抗して突起59に沿ってシリンダヘッ
ド55b側に移動する。その後、ピストン53が下降す
れば、弁プレート56はバネ58の弾性力により元の状
態に復元される。このように、ピストン53が弁プレー
ト56と衝突しても前記バネ58が弁プレート56に加
えられた衝撃を吸収することによりピストン53及び弁
プレート56の破損を防止することになる。一方、ピス
トン53及び弁プレート56に加えられる衝撃を緩和さ
せるための緩衝手段としてバネ以外にもゴムなどのよう
に弾性力を有する緩衝部材を使用することもできる。When the piston 53 moves upward, the closed container 1
If the valve plate 56 collides with the valve plate 56 beyond the top dead center due to internal or external factors such as an internal temperature rise of 0 and external impact, the elastic force of the spring 58 serving as a buffer means for supporting the valve plate 56 will be described. And moves toward the cylinder head 55b along the protrusion 59. Thereafter, when the piston 53 is lowered, the valve plate 56 is restored to the original state by the elastic force of the spring 58. In this way, even if the piston 53 collides with the valve plate 56, the spring 58 absorbs the shock applied to the valve plate 56, thereby preventing the piston 53 and the valve plate 56 from being damaged. On the other hand, other than a spring, a buffer member having an elastic force, such as rubber, can be used as buffer means for reducing the impact applied to the piston 53 and the valve plate 56.
【0019】[0019]
【発明の効果】以上述べたように、本発明によるリニア
圧縮機において、バネを用いて弁プレートを支持するこ
とによりピストンが所定の移動領域を越えて弁プレート
と衝突する場合も前記バネがその衝撃を吸収してピスト
ン及び弁プレートの破損を防止し、ピストンの作動安定
性を向上させ圧縮機の作動を円滑にできる。As described above, in the linear compressor according to the present invention, the spring is used to support the valve plate, so that even when the piston collides with the valve plate beyond a predetermined moving range, the spring can be used. By absorbing the impact, damage to the piston and the valve plate can be prevented, the operation stability of the piston can be improved, and the operation of the compressor can be performed smoothly.
【図1】 従来のリニア圧縮機を示した断面図である。FIG. 1 is a sectional view showing a conventional linear compressor.
【図2】 本発明によるリニア圧縮機を示した断面図で
ある。FIG. 2 is a sectional view showing a linear compressor according to the present invention.
【図3】 図2の‘A’部の拡大図である。FIG. 3 is an enlarged view of an 'A' part of FIG. 2;
【図4】 本発明によるリニア圧縮機のピストンの吸入
行程時を示した断面図である。FIG. 4 is a cross-sectional view showing a piston during a suction stroke of a linear compressor according to the present invention.
【図5】 本発明によるリニア圧縮機のピストンの吐出
行程時を示した断面図である。FIG. 5 is a cross-sectional view showing a piston during a discharge stroke of the linear compressor according to the present invention.
【図6】 本発明によるリニア圧縮機のピストンと弁プ
レートの衝突時を示した断面図である。FIG. 6 is a cross-sectional view showing a state where a piston and a valve plate of the linear compressor according to the present invention collide with each other.
50 密閉容器 50a 吸入管 51 リニアモータ 51a 1次固定子 51b 2次固定子 51c 永久磁石 52 フランジ 53 ピストン 53a 第1流入口 53b 第2流入口 53c 流入弁 54 圧縮室 55 シリンダ 55a シリンダブロック 55b シリンダヘッド 56 弁プレート 56a 吐出口 56b 吐出弁 57 板バネ 58 バネ 59 突起 59a 切開部 60 吐出管 50 airtight container 50a suction pipe 51 linear motor 51a primary stator 51b secondary stator 51c permanent magnet 52 flange 53 piston 53a first inlet 53b second inlet 53c inflow valve 54 compression chamber 55 cylinder 55a cylinder block 55b cylinder head 56 Valve plate 56a Discharge port 56b Discharge valve 57 Leaf spring 58 Spring 59 Projection 59a Cutout 60 Discharge pipe
Claims (4)
室を形成するようシリンダブロックとシリンダヘッドで
構成されたシリンダと、前記シリンダに固定されたリニ
アモータと、前記シリンダの内部に備えられ前記リニア
モータにより作動するピストンと、前記圧縮室で圧縮さ
れた冷媒の吐き出しを案内する吐出口と前記吐出口を開
閉する吐出弁の設けられた弁プレートと、を備えるリニ
ア圧縮機において、 前記シリンダの内部には、前記ピストンと前記弁プレー
トの衝突時前記ピストンと前記弁プレートに加えられる
衝撃を減らせる緩衝手段が設けられていることを特徴と
するリニア圧縮機。1. A closed container, a cylinder formed of a cylinder block and a cylinder head so as to form a compression chamber inside the closed container, a linear motor fixed to the cylinder, and provided inside the cylinder. A linear compressor comprising: a piston operated by the linear motor; a discharge port for guiding discharge of the refrigerant compressed in the compression chamber; and a valve plate provided with a discharge valve for opening and closing the discharge port. The linear compressor according to claim 1, further comprising a buffering means for reducing an impact applied to the piston and the valve plate when the piston and the valve plate collide with each other.
記シリンダヘッドの内側面と前記弁プレートに固定され
たバネにより構成されていることを特徴とする請求項1
に記載のリニア圧縮機。2. The cushioning means according to claim 1, wherein both ends thereof are formed by springs fixed to the inner surface of the cylinder head and the valve plate, respectively.
A linear compressor according to item 1.
れ、前記ピストンの下部の一側には前記密閉容器の内部
に流入された冷媒が前記ピストンの内部に流入されるよ
う第1流入口が形成されており、上部には前記ピストン
の内部の冷媒を前記圧縮室に流入させる第2流入口と前
記第2流入口を開閉する流入弁とが備えられていること
を特徴とする請求項1に記載のリニア圧縮機。3. The piston is provided in a hollow cylindrical shape, and a first inlet is provided at one side of a lower portion of the piston so that a refrigerant flowing into the closed container flows into the piston. And a second inlet for allowing the refrigerant inside the piston to flow into the compression chamber and an inlet valve for opening and closing the second inlet. A linear compressor according to item 1.
レートの移動を案内する突起が前記弁プレート側に突出
されており、前記突起の一側には前記圧縮室から前記吐
出口を通して吐き出される冷媒を前記シリンダヘッドの
外部に案内するために一部切開された切開部が備えられ
ていることを特徴とする請求項1に記載のリニア圧縮
機。4. A protrusion for guiding the movement of the valve plate protruding from the valve plate inside the cylinder head, and a refrigerant discharged from the compression chamber through the discharge port on one side of the protrusion. The linear compressor according to claim 1, further comprising an incision part partially incised to guide the outside of the cylinder head.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR199728764 | 1997-06-28 | ||
KR1019970028764A KR100218963B1 (en) | 1997-06-28 | 1997-06-28 | Linear compressor |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH1122642A true JPH1122642A (en) | 1999-01-26 |
JP3068048B2 JP3068048B2 (en) | 2000-07-24 |
Family
ID=19512093
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10048442A Expired - Fee Related JP3068048B2 (en) | 1997-06-28 | 1998-02-27 | Linear compressor |
Country Status (2)
Country | Link |
---|---|
JP (1) | JP3068048B2 (en) |
KR (1) | KR100218963B1 (en) |
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WO2002095231A1 (en) * | 2001-05-24 | 2002-11-28 | Lg Electronics Inc. | Discharge apparatus for reciprocating compressor |
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KR100425847B1 (en) * | 2002-03-12 | 2004-04-03 | 주식회사 엘지이아이 | Cylinder head for compressor |
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KR100477111B1 (en) * | 2002-02-01 | 2005-03-17 | 삼성전자주식회사 | Linear compressor |
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1997
- 1997-06-28 KR KR1019970028764A patent/KR100218963B1/en not_active IP Right Cessation
-
1998
- 1998-02-27 JP JP10048442A patent/JP3068048B2/en not_active Expired - Fee Related
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CN106401908A (en) * | 2015-07-17 | 2017-02-15 | 姚宏志 | High-efficiency refrigerant compressor |
CN107288841A (en) * | 2016-03-30 | 2017-10-24 | 青岛海尔智能技术研发有限公司 | Linear compressor and its assemble method |
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Also Published As
Publication number | Publication date |
---|---|
KR19990004637A (en) | 1999-01-15 |
KR100218963B1 (en) | 1999-09-01 |
JP3068048B2 (en) | 2000-07-24 |
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