WO2016000660A1 - 用于密闭式压缩机排气室的安全阀、压缩机和冰箱 - Google Patents

用于密闭式压缩机排气室的安全阀、压缩机和冰箱 Download PDF

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WO2016000660A1
WO2016000660A1 PCT/CN2015/083291 CN2015083291W WO2016000660A1 WO 2016000660 A1 WO2016000660 A1 WO 2016000660A1 CN 2015083291 W CN2015083291 W CN 2015083291W WO 2016000660 A1 WO2016000660 A1 WO 2016000660A1
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Prior art keywords
valve
safety valve
groove
compressor
safety
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PCT/CN2015/083291
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English (en)
French (fr)
Inventor
朱建超
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Whirlpool SA
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Whirlpool SA
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    • 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
    • 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

Definitions

  • the utility model relates to a safety valve for a discharge chamber of a closed compressor.
  • the utility model also relates to a compressor and a refrigerator comprising such a safety valve.
  • the refrigeration compressor can suck low-pressure low-temperature refrigerant gas from the intake pipe, drive the piston to compress it by the motor operation, and then discharge high-temperature and high-pressure refrigerant gas to the exhaust pipe to power the refrigeration cycle. , thereby achieving a refrigeration cycle.
  • the gas from the compressor pump to the refrigeration system or generally to the high pressure side of the compressor circuit is pulsed.
  • the pulsation of the gas creates an excitation on the components connected to the exhaust pipe of the delivery pipe and the compressor, resulting in undesired noise, and at the same time causing large stresses in the component during the action, resulting in fatigue, deformation and fracture of the material. It is therefore necessary to provide a silencer or to configure the structure of the starting safety valve used in the compressor. It is common to change the size, arrangement, etc. of the tubes, containment bodies, and local orifices through which the airflow passes to eliminate noise and improve component performance. However, there are still many areas for improvement in the start-up safety valves of commercially available compressors.
  • the utility model provides a safety valve for a discharge chamber of a closed compressor, which can ensure the excellent performance of the safety valve by using a simple structure, and can still reduce the stress, reduce the fatigue, deformation and fracture of the material. It can ensure the strength of the valve device and prolong its service life.
  • the compressor for installing the safety valve according to the present invention can work better Work to reduce the possibility of failure of the safety valve.
  • a safety valve for a hermetic compressor discharge chamber comprising: a valve plate and a valve vane mounted to the valve plate and having a valve device, wherein the valve The device is an elongated sheet-like structure that is capable of opening and closing movement about a bend at its root, and the valve means includes at least one stress reduction portion formed on the elongated sheet-like structure.
  • the at least one stress reduction portion comprises: a groove, a crease or an indentation, or a combination of a groove and a crease or an indentation.
  • the maximum depth of each of the grooves is no more than 25% of the original width of the elongated sheet-like structure at the location without grooves.
  • the shape of the groove is a 360 degree cosine line shape.
  • the shape of the groove is a semicircular groove.
  • the shape of the groove is a semi-elliptical groove.
  • the shape of the groove is a trapezoidal groove.
  • the shape of the groove is a triangular groove.
  • the elongated sheet-like structure of the valve device as described above includes a rectangular portion connected to the valve blade and a semicircular portion at an end of the rectangular portion, the at least one stress reducing portion being formed in the rectangular portion on.
  • valve device is integrally formed with the valve vane by stamping.
  • a hermetic compressor that includes a cylinder, wherein the hermetic compressor further includes a safety valve as previously described in the cylinder.
  • a refrigerator in accordance with another aspect of the present invention, includes a hermetic compressor having a cylinder, wherein the refrigerator further includes a safety valve as previously described in a cylinder of the compressor.
  • FIG. 1 is a longitudinal cross-sectional view of an exhaust system of a hermetic compressor in accordance with a preferred embodiment of the present invention.
  • Fig. 2 is a longitudinal cross-sectional view schematically showing the discharge system along the line I-I in Fig. 1.
  • FIG. 3 shows a schematic structural view of a valve plate according to an embodiment of the present invention.
  • FIG. 4 is a schematic view showing the structure of a valve blade in an operating state according to an embodiment of the present invention.
  • 5A, 5B, 5C, 5D, 5E, and 5F show enlarged schematic views of different embodiments of the valve device in the valve vane, respectively.
  • a conventional hermetic compressor typically includes a compressor housing and a motor-compressor assembly located within the compressor housing.
  • the motor-compressor assembly includes a cylinder that is reciprocable within the cylinder. The motor-compressor assembly draws and compresses the refrigerant gas as it is moved by the motor of the compressor.
  • FIG. 1 is a longitudinal cross-sectional view of an exhaust system of a hermetic compressor in accordance with a preferred embodiment of the present invention.
  • Fig. 2 is a longitudinal cross-sectional view schematically showing the discharge system along the line I-I in Fig. 1.
  • the cylinder 1 is shown in FIGS. 1 and 2, and the cylinder 1 includes a cylinder block 10 and a cylinder head 20, and a valve plate 30 is disposed between the cylinder block 10 and the cylinder head 20.
  • the cylinder 1 is divided by the cylinder wall and/or the valve plate 30 into an intermediate compression chamber 102, a suction chamber (not shown) and three discharge chambers.
  • the three discharge chambers include a first discharge chamber 204 between the valve plate 30 and the cylinder head 20, a second discharge chamber 106 located in the cylinder block 10 on the right side of the compression chamber 102, located in the cylinder block 10, in the compression chamber.
  • the third discharge chamber 107 on the left side of 102.
  • a discharge pipe 105 is connected to the lower end of the third discharge chamber 107.
  • a gas passage 108 is formed between the third discharge chamber 107 and the second discharge chamber 106. The gas passage 108 is at pressure Below the constriction chamber 102.
  • FIG. 3 shows a schematic structural view of a valve plate according to an embodiment of the present invention.
  • the valve plate 30 has a suction hole 301 in the middle thereof, and a first discharge hole 302 is formed on the right side of the valve plate 30 adjacent to the suction hole 301, and the valve plate 30 is formed with a second discharge hole near the right edge.
  • the valve plate 30 is formed with a third discharge hole 304 near the left side edge.
  • valve vane 40 includes a valve assembly 422 that is movable between an open position and a closed position. After assembly, the valve vane 40 is mounted on the valve plate 30, the valve plate 30 is disposed between the cylinder block 10 and the cylinder head 20, and the third discharge hole 304 on the left side of the valve plate 30 is located in the first discharge chamber 204 and The position of the valve device 422 corresponds to the position of the third discharge hole 304, as shown in FIGS. 1 and 2.
  • valve device 422 In the open position of the valve device 422, when the mass flow of gas from the compression chamber 102 to the first discharge chamber 204 reaches a determined gas mass flow, the first discharge chamber 204 and the third discharge chamber 107 are in communication; at the valve device 422 The closed position, when the gas mass flow reaches a value that is less than the determined gas mass flow, the fluid communication between the first discharge chamber 204 and the third discharge chamber 107 is severed.
  • the valve device 422 is a vane valve formed or attached to the valve vane 40 that can be opened and closed relative to the valve vane 40 by a bend 423 located generally at its root. Since the valve device 422 is repeatedly opened and closed by the bending portion 423 during operation, the bending portion 423 is subjected to a large stress, which may cause fatigue, deformation and breakage of the material. In order to reduce stress and reduce fatigue, deformation and breakage of the material, the valve device 422 further includes at least one stress reduction portion formed thereon. According to various embodiments, the at least one stress reduction portion may be a groove formed on the valve device 422, or a crease or an indentation, or a combination of a groove and a crease or an indentation.
  • the valve means 422 is a generally elongated sheet-like structure comprising a rectangular portion 401 coupled to the valve vane 40 and a semi-circular portion 402 at the end of the rectangular portion 401, as in Figures 4 and 5A, 5B, 5C, 5D, and 5E are shown.
  • a bent portion 423 is formed on the rectangular portion 401 to assist the valve device 422 opening and closing movements.
  • at least one stress reducing portion such as the groove 424 and/or the crease or the indentation 425 is formed on the elongated sheet structure.
  • the valve means 422 can be integrally formed with the valve vanes 40, such as by direct stamping on the valve vanes.
  • the valve means 422 can also be formed separately and then joined to the valve vanes by means of connections known in the art, such as welding, bonding, and the like.
  • the at least one stress reduction portion comprises at least one groove 424 formed on the elongated sheet-like structure (rectangular portion 401), and FIG. 4 shows two grooves 424.
  • the grooves can be designed in various styles as needed.
  • the shape of the valve means is not limited to the shape of the above-described rectangular portion and semicircular portion, and may be other shapes as will be apparent to those skilled in the art.
  • the at least one stress reduction portion comprises at least one crease or indentation 425 formed on the elongate sheet structure, and FIGS. 4 and 5F show a crease or indentation 425.
  • the valve device 422 can use the groove 424 as the stress reducing portion alone, using the crease or the indentation as the stress reducing portion alone, or simultaneously adopting the groove 424 and the crease or the indentation 425 as the stress.
  • Reduction department. 4 shows a situation in which the valve device 422 has both a groove 424 and a crease or indentation 425 as a stress reduction portion.
  • FIG. 5A, 5B, 5C, 5E, 5D, and 5F respectively show enlarged schematic views of different embodiments of the valve device 422 in the valve vane, showing different stress reduction portions of the valve device 422.
  • the stress reducing portion of the valve device 422 is a groove 424 formed on the elongated sheet-like structure or rectangular portion 401, and the shape of the groove 424 is a 360-degree cosine line. shape.
  • the stress reduction portion of the valve device 422 is a groove 424' formed on the elongated sheet-like structure or rectangular portion 401, and the shape of the groove 424' is Semi-circular groove.
  • FIG. 5A the stress reducing portion of the valve device 422 is a groove 424 formed on the elongated sheet-like structure or rectangular portion 401, and the shape of the groove 424' is Semi-circular groove.
  • the stress reducing portion of the valve device 422 is a groove 424" formed on the elongated sheet-like structure or rectangular portion 401, and the shape of the groove 424" is Semi-elliptical groove.
  • the stress reduction portion of the valve device 422 is a groove 424"' formed on the elongated sheet-like structure or rectangular portion 401, and the groove 424"' Shape is ladder Shaped groove.
  • the stress reduction portion of the valve device 422 is a groove 424"" formed on the elongated sheet-like structure or rectangular portion 401, and the groove 424"" The shape is a triangle.
  • the groove as the stress reduction portion may be other shapes capable of achieving stress reduction, reduction of fatigue, deformation and fracture of the material, such as a polygon, an oval, or the like.
  • the stress reduction portion of the valve device 422 is at least one crease or indentation 425 formed on the elongated sheet-like structure or rectangular portion 401.
  • the maximum depth D of the grooves of the various forms of the stress reduction portion is not greater than
  • the safety valve according to the present invention includes the above-described valve plate and valve vane.
  • valve plate and valve vane can be made from any suitable material by any suitable means.
  • the strength of the valve device can be ensured under the conditions of reducing stress, reducing fatigue, deformation and fracture of the material, thereby having an extended service life, and can be used for a refrigeration compressor or the like.
  • the compressor in which the safety valve according to the present invention is installed can work more satisfactorily, reducing the possibility of failure of the safety valve.
  • Compressors containing such safety valves can be widely used in appliances such as refrigerators and air conditioners.
  • a person skilled in the art can separately use the groove as the stress reduction portion, use the crease or the indentation as the stress reduction portion alone, or use the groove and the crease or the indentation as the stress reduction portion at the same time.
  • the safety valve of the utility model has the advantages of simple structure, excellent performance and convenient assembly and quickness.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Check Valves (AREA)
  • Compressor (AREA)

Abstract

一种用于密闭式压缩机排气室的安全阀，包括阀板（30）和安装到阀板（30）上并具有阀门装置（422）的阀叶片（40），其中阀门装置（422）为能够绕其根部处的弯折部（423）进行打开和关闭运动的细长片状结构，并且阀门装置（422）包括形成于细长片状结构上的至少一个应力削减部。还公开了包含该安全阀的压缩机和冰箱。该安全阀能够利用简单的结构，在实现削减应力、减少材料疲劳、变形和断裂的条件下，仍能保证阀门装置（422）的强度，并延长使用寿命。使用该安全阀的压缩机和冰箱能够更加良好的工作，降低安全阀失效的可能性。

Description

用于密闭式压缩机排气室的安全阀、压缩机和冰箱 技术领域
本实用新型涉及一种用于密闭式压缩机排气室的安全阀。本实用新型还涉及包含这种安全阀的压缩机以及冰箱。
背景技术
诸如冰箱、家用空调、汽车空调等电器广泛用于人们的日常生活中，在这些电器内部都采用了各种制冷压缩机。作为制冷系统的心脏，制冷压缩机能够从吸气管吸入低压低温的制冷剂气体，通过电机运转带动活塞对其进行压缩后，向排气管排出高温高压的制冷剂气体，为制冷循环提供动力，从而实现制冷循环。
从压缩机泵至制冷系统或者通常至压缩机回路的高压侧的气体存在脉动。气体的脉动在输送管和压缩机的排放系统连接的部件上产生激励，导致产生不期望的噪音，同时会导致零部件在作用过程中存在较大应力，进而产生材料的疲劳、变形及断裂。因此需要设置消音器或者对压缩机中使用的启动安全阀的结构进行配置。通常是对气流经过的管、容纳体和局部节流口等的尺寸、布置等进行改变，以消除噪音，改善零部件性能。但目前市售的压缩机的启动安全阀仍有许多待改进之处。
因此，非常需要提供一种能够提供优异性能的用于密闭式压缩机排气室的安全阀。
实用新型内容
本实用新型提供了一种用于密闭式压缩机排气室的安全阀，其能够利用简单的结构确保安全阀的优异性能，在实现削减应力、减少材料的疲劳、变形和断裂的条件下仍能保证阀门装置的强度，并且延长使用寿命。
安装根据本实用新型的安全阀的压缩机能够更加良好地进行工 作，降低安全阀的失效的可能性。
根据本实用新型的一个方面，提供一种用于密闭式压缩机排气室的安全阀，其包括：阀板和安装到所述阀板上并具有阀门装置的阀叶片，其中，所述阀门装置为能够绕其根部处的弯折部进行打开和关闭运动的细长片状结构，并且所述阀门装置包括形成于所述细长片状结构上的至少一个应力削减部。
根据本实用新型，所述至少一个应力削减部包括：凹槽、折痕或压痕、或者凹槽和折痕或压痕的组合。每个所述凹槽的最大深度不大于细长片状结构在该位置的无凹槽的原始宽度的25％。
根据本实用新型的一种实施方式，所述凹槽的形状为一段360度余弦线形状。
根据本实用新型的又一种实施方式，所述凹槽的形状为半圆槽。
根据本实用新型的另一种实施方式，所述凹槽的形状为半椭圆槽。
根据本实用新型的再一种实施方式，所述凹槽的形状为梯形凹槽。
根据本实用新型的另一种实施方式，所述凹槽的形状为三角形凹槽。
如前所述的阀门装置的细长片状结构包括与所述阀叶片连接的矩形部分和位于所述矩形部分的末端的半圆形部分，所述至少一个应力削减部形成在所述矩形部分上。
优选地，所述阀门装置通过冲压而与所述阀叶片一体形成。
根据本实用新型的另一个方面，提供一种密闭式压缩机，其包括气缸，其中，所述密闭式压缩机还包括位于所述气缸中的如前所述的安全阀。
根据本实用新型的另一个方面，提供一种冰箱，其包括具有气缸的密闭式压缩机，其中，所述冰箱还包括位于所述压缩机的气缸中的如前所述的安全阀。
附图说明
图1是根据本实用新型的一种优选实施方式的密闭式压缩机的排放系统的纵向剖视图。
图2是示意性示出沿着图1中的线I-I的排放系统的纵向剖视图。
图3示出了根据本实用新型的一种实施方式的阀板的结构示意图。
图4示出了根据本实用新型的一种实施方式的处于工作状态的阀叶片的结构示意图。
图5A、图5B、图5C、图5D、图5E和图5F分别示出了阀叶片中的阀门装置的不同实施方式的放大示意图。
具体实施方式
下面参照附图详细地描述本实用新型的实施方式。其中，文中所述的方位术语，诸如“上侧”、“下侧”、“左侧”、“右侧”，是相对于图面而言的。
普通的密闭式压缩机通常包括压缩机壳体和位于压缩机壳体内的马达-压缩机组件。马达-压缩机组件包括气缸，活塞能够在气缸内往复运动。当活塞受到压缩机的马达驱动而运动时，马达-压缩机组件对制冷剂气体进行抽吸和压缩。
图1是根据本实用新型的一种优选实施方式的密闭式压缩机的排放系统的纵向剖视图。图2是示意性示出沿着图1中的线I-I的排放系统的纵向剖视图。图1和图2中示出了气缸1，气缸1包括气缸座10和气缸盖20，在气缸座10和气缸盖20之间设置有阀板30。气缸1内被气缸壁和/或阀板30分成了中间的压缩室102、吸入室(图中未示出)和三个排放室。三个排放室包括位于阀板30和气缸盖20之间的第一排放室204，位于气缸座10内、处于压缩室102右侧的第二排放室106，位于气缸座10内、处于压缩室102左侧的第三排放室107。第三排放室107的下端连接有排放管105。第三排放室107和第二排放室106之间形成有气体通道108。该气体通道108位于压 缩室102下方。
图3示出了根据本实用新型的一种实施方式的阀板的结构示意图。如图3所示，阀板30中间具有吸入孔301，阀板30上紧邻吸入孔301的靠右位置形成有第一排放孔302，阀板30在靠近右侧边缘处形成有第二排放孔303，阀板30在靠近左侧边缘处形成有第三排放孔304。
图4示出了根据本实用新型的一种实施方式的处于工作状态的阀叶片的结构示意图。如图1和图4所示，阀叶片40包括阀门装置422，阀门装置422能够在打开位置和关闭位置之间运动。在组装之后，阀叶片40是安装在阀板30上的，阀板30布置在气缸座10和气缸盖20之间，并且阀板30左侧的第三排放孔304位于第一排放室204和第三排放室107之间，而阀门装置422的位置对应于该第三排放孔304的位置，如图1和图2所示。在阀门装置422的所述打开位置，当从压缩室102到第一排放室204的气体质量流达到确定的气体质量流时，第一排放室204和第三排放室107连通；在阀门装置422的所述关闭位置，当气体质量流达到的值比确定的气体质量流小时，第一排放室204和第三排放室107的流体连通被切断。
如图4所示，阀门装置422为形成或附接到阀叶片40上的叶片阀，能够借助大致位于其根部的弯折部423相对于阀叶片40打开和关闭。由于在工作时阀门装置422会借助弯折部423反复打开和关闭，导致弯折部423会受到较大的应力，进而会产生材料的疲劳、变形和断裂。为了削减应力，减少材料的疲劳、变形和断裂，阀门装置422还包括形成在其上的至少一个应力削减部。根据不同的实施方式，所述至少一个应力削减部可以为形成在所述阀门装置422上的凹槽、或者折痕或压痕、或者凹槽与折痕或压痕的组合。
在一种优选实施方式中，所述阀门装置422为大致细长片状结构，包括与阀叶片40连接的矩形部分401和位于矩形部分401的末端的半圆形部分402，如图4和图5A、图5B、图5C、图5D和图5E所示。弯折部423形成在所述矩形部分401上，以辅助阀门装置 422的打开和关闭运动。为了削减弯折部423处的应力，减少材料的疲劳、变形和断裂，在细长片状结构上形成有至少一个应力削减部，例如凹槽424和/或折痕或压痕425。如图4所示，阀门装置422可与阀叶片40一体形成，例如通过在阀叶片上直接冲压而成。替代地，所述阀门装置422还可单独形成而后通过本领域已知的连接方式、诸如焊接、粘接等连接到阀叶片上。根据一种优选实施方式，所述至少一个应力削减部包括在细长片状结构(矩形部分401)上形成的至少一个凹槽424，图4示出了两个凹槽424。所述凹槽可以根据需要设计成各种样式。当然，阀门装置的形状不限于上述矩形部分和半圆形部分的形状，还可以是本领域技术人员能够想到的其他形状。根据一种优选实施方式，所述至少一个应力削减部包括在细长片状结构上形成的至少一个折痕或压痕425，图4和图5F示出了一个折痕或压痕425。本领域技术人员可以理解，所述阀门装置422可以单独采用凹槽424作为应力削减部，单独采用折痕或压痕作为应力削减部，或者同时采用凹槽424和折痕或压痕425作为应力削减部。其中图4示出了所述阀门装置422同时具有凹槽424和折痕或压痕425作为应力削减部的情形。
图5A、图5B、图5C、图5E、图5D和图5F分别示出了阀叶片中的阀门装置422的不同实施方式的放大示意图，示出了阀门装置422的不同的应力削减部。在图5A所示的实施方式中，阀门装置422的应力削减部为在细长片状结构或说矩形部分401上形成的凹槽424，并且所述凹槽424的形状为一段360度余弦线形状。在图5B所示的另一种实施方式中，阀门装置422的应力削减部为在细长片状结构或说矩形部分401上形成的凹槽424’，并且所述凹槽424’的形状为半圆槽。在图5C所示的又一种实施方式中，阀门装置422的应力削减部为在细长片状结构或说矩形部分401上形成的凹槽424”，并且所述凹槽424”的形状为半椭圆槽。在图5D所示的再一种实施方式中，阀门装置422的应力削减部为在细长片状结构或说矩形部分401上形成的凹槽424”’，并且所述凹槽424”’的形状为梯 形凹槽。在图5E所示的另一种实施方式中，阀门装置422的应力削减部为在细长片状结构或说矩形部分401上形成的凹槽424””，并且所述凹槽424””的形状为三角形。本领域技术人员还可以想到，作为应力削减部的凹槽可以为能够实现削减应力、减少材料的疲劳、变形和断裂的其它形状，诸如多边形、卵形等。在图5F所示的另一种实施方式中，阀门装置422的应力削减部为在细长片状结构或说矩形部分401上形成的至少一条折痕或压痕425。
根据本实用新型，为了能够在实现削减应力、减少材料的疲劳、变形和断裂的条件下仍能保证阀门装置422的强度，所述各种形式的应力削减部的凹槽的最大深度D不大于细长片状结构在该位置的无凹槽的原始宽度L的25％，即，D＜＝25％L，如图4所示。
根据本实用新型的安全阀包括上述阀板和阀叶片。本领域技术人员可以理解，根据本实用新型的阀板和阀叶片可由任何适当的材料通过任何适当的手段来制成。
工业实用性
根据本实用新型的安全阀，在实现削减应力、减少材料的疲劳、变形和断裂的条件下仍能够保证阀门装置的强度，由此具有延长的使用寿命，可用于制冷压缩机等。安装根据本实用新型的安全阀的压缩机能够更加良好地进行工作，降低安全阀的失效的可能性。包含这种安全阀的压缩机可广泛用于冰箱、空调等电器。
本领域技术人员可以单独采用凹槽作为应力削减部，单独采用折痕或压痕作为应力削减部，或者同时采用凹槽和折痕或压痕作为应力削减部。
组装时，只需要将阀叶片安装到阀板上，将阀板配置在气缸盖和气缸座之间即可。因此本实用新型的安全阀不仅结构简单，性能优异，组装也方便快捷。
上面参照附图对本实用新型的具体实施方式进行了说明，但这些说明不应理解为对本实用新型保护范围的限制。本领域技术人员 根据本实用新型的教导对上述具体实施方式作出的改进或变型，落入本实用新型的保护范围。

Claims (12)

  1. 一种用于密闭式压缩机排气室的安全阀，其包括：阀板和安装到所述阀板上并具有阀门装置的阀叶片，其特征在于，所述阀门装置为能够绕其根部处的弯折部进行打开和关闭运动的细长片状结构，并且所述阀门装置包括形成于所述细长片状结构上的至少一个应力削减部。
  2. 如权利要求1所述的安全阀，其特征在于，所述至少一个应力削减部包括：凹槽、折痕、或者凹槽和折痕的组合。
  3. 如权利要求2所述的安全阀，其特征在于，每个所述凹槽的最大深度不大于细长片状结构在该位置的无凹槽的原始宽度的25％。
  4. 如权利要求3所述的安全阀，其特征在于，所述凹槽的形状为一段360度余弦线形状。
  5. 如权利要求3所述的安全阀，其特征在于，所述凹槽的形状为半圆槽。
  6. 如权利要求3所述的安全阀，其特征在于，所述凹槽的形状为半椭圆槽。
  7. 如权利要求3所述的安全阀，其特征在于，所述凹槽的形状为梯形凹槽。
  8. 如权利要求3所述的安全阀，其特征在于，所述凹槽的形状为三角形凹槽。
  9. 如权利要求1至8中任一项所述的安全阀，其特征在于，所述阀门装置的细长片状结构包括与所述阀叶片连接的矩形部分和位于所述矩形部分的末端的半圆形部分，所述至少一个应力削减部形成在所述矩形部分上。
  10. 如权利要求9所述的安全阀，其特征在于，所述阀门装置通过冲压而与所述阀叶片一体形成。
  11. 一种密闭式压缩机，其包括气缸，其特征在于，所述密闭式压缩机还包括位于所述气缸中的如权利要求1-10中任一项所述的安全阀。
  12. 一种冰箱，其包括具有气缸的密闭式压缩机，其特征在于，所述冰箱还包括位于所述压缩机的气缸中的如权利要求1-10中任一项所述的安全阀。
PCT/CN2015/083291 2014-07-04 2015-07-03 用于密闭式压缩机排气室的安全阀、压缩机和冰箱 Ceased WO2016000660A1 (zh)

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