Compressor

Abstract

A compressor is disclosed. The compressor comprises: a cylinder chamber in which refrigerant is compressed; a cylinder comprising a first slot and a second slot; a roller which turns inside the cylinder while contacting a cam of a shaft rotating about an axis; and a vane which partitions the cylinder chamber into an inlet chamber and a compression chamber and comes into contact with the roller, the vane comprising a first vane portion accommodated in the first slot and a second vane portion accommodated in the second slot, wherein the first vane portion comprises a stopper protrusion which protrudes outwardly in the radial direction of the shaft so that the accommodation of the first vane portion in the second slot is restricted, and the cylinder comprises a catching portion which is provided inside the second slot so that the first vane portion is caught when the first vane portion is accommodated in the second slot.

Description

compressor

[0001] The present invention relates to a compressor including a vane misassembly prevention structure.

[0002] A compressor is a mechanical device that receives power from a power generation device, such as an electric motor or turbine, and compresses air, refrigerants, or various other working gases to increase their pressure. Compressors are widely used in home appliances, such as refrigerators, air conditioners, and clothes dryers, as well as across various industries.

[0003] Types of compressors include reciprocating compressors, scroll compressors, and rotary compressors. In a reciprocating compressor, a compression space is formed between the piston and the cylinder for the intake and discharge of working gas, and the piston compresses the working gas by performing a linear reciprocating motion inside the cylinder. In a scroll compressor, a compression space is formed between the rotary scroll and the stationary scroll for the intake and discharge of working gas, and the rotary scroll compresses the working gas as it rotates along the stationary scroll. In a rotary compressor, a compression space is formed between the cylinder and the eccentrically rotating rolling piston for the intake and discharge of working gas, and the rolling piston compresses the working gas as it rotates eccentrically along the inner wall of the cylinder.

[0004] One aspect of the present invention provides a compressor in which the vane is provided with an asymmetric shape, thereby creating a possibility of misassembly of the vane.

[0005] One aspect of the present invention provides a compressor comprising an anti-misassembly structure to prevent misassembly of a vane of asymmetric shape in advance.

[0006] The technical problems to be solved in this document are not limited to those mentioned above, and other unmentioned technical problems will be clearly understood by those skilled in the art to which this invention belongs from the description below.

[0007] A compressor according to the concept of the present invention comprises a cylinder chamber in which a refrigerant is compressed, a cylinder including a first slot and a second slot, a roller that pivots inside the cylinder by contacting a cam of a shaft that rotates around an axis, a vane that divides the cylinder chamber into an inlet chamber and a compression chamber and contacts the roller, the vane comprising a first vane portion provided to be received in the first slot and a second vane portion provided to be received in the second slot, wherein the first vane portion includes a locking projection protruding radially outward from the shaft to restrict the first vane portion from being received in the second slot, and the cylinder includes a locking portion provided inside the second slot to lock the first vane portion when the first vane portion is received in the second slot.

[0008] A compressor according to the concept of the present invention comprises a cylinder including a cylinder chamber in which a refrigerant is compressed and a roller that rotates in contact with a shaft rotating around an axis, and a vane including a first vane portion and a second vane portion arranged to be reciprocally formed inside the cylinder and spaced apart along the axial direction, wherein the first vane portion includes a locking projection formed protruding outwardly from the cylinder, and the second vane portion includes a second vane portion projection formed protruding outwardly from the cylinder, and a spring that supports the vane to be reciprocally formed, wherein the vane includes a concave groove portion that receives the spring, which is provided between the locking projection and the second vane portion projection on one side and contacts the roller to divide the cylinder chamber into an inlet chamber and a compression chamber, and on the other side, the length of the protrusion of the locking projection from the inner surface of the concave groove portion is provided to be longer than the length of the protrusion of the second vane portion projection from the inner surface of the concave groove portion, and the cylinder includes a first slot in which the first vane portion is received and the second vane portion It includes a second slot that is accommodated, wherein the recessed length of the first slot on the inner side of the cylinder is shorter than the recessed length of the second slot on the inner side of the cylinder.

[0009] FIG. 1 is an axial cross-sectional view of a compressor and an accumulator according to one embodiment of the present invention.

[0010] FIG. 2 is a perspective view illustrating a partial configuration of a compressor according to one embodiment of the present invention.

[0011] Figure 3 is an exploded view showing a disassembled part of the compressor shown in Figure 2.

[0012] Figure 4 is an exploded view showing a disassembled part of the compressor shown in Figure 2.

[0013] Figure 5 is a cross-sectional view along the A-A' direction of the compressor shown in Figure 2.

[0014] FIG. 6 is a perspective view illustrating a partial configuration of a compressor according to one embodiment of the present invention.

[0015] FIG. 7 is a cross-sectional perspective view illustrating a part of the configuration of a compressor according to one embodiment of the present invention.

[0016] FIG. 8 is a cross-sectional perspective view illustrating a part of the configuration of a compressor according to one embodiment of the present invention, showing a vane assembled to a cylinder.

[0017] FIG. 9 is a cross-sectional perspective view illustrating a part of the configuration of a compressor according to one embodiment of the present invention, showing a vane incorrectly assembled to a cylinder.

[0018] FIG. 10 is a cross-sectional perspective view illustrating a part of the configuration of a compressor according to one embodiment of the present invention.

[0019] FIG. 11 is a side cross-sectional view showing an enlarged portion of FIG. 10.

[0020] FIG. 12 is a side cross-sectional view illustrating a part of the configuration of a compressor according to one embodiment of the present invention, showing a vane assembled to a cylinder.

[0021] FIG. 13 is a side cross-sectional view illustrating a part of the configuration of a compressor according to one embodiment of the present invention, showing a vane incorrectly assembled to a cylinder.

[0022] FIG. 14 is a perspective view of a vane according to one embodiment of the present invention.

[0023] FIG. 15 is a plan view showing an enlarged view of a part of the compressor according to one embodiment of the present invention, and is a drawing for explaining the case where the vanes are properly assembled.

[0024] FIG. 16 is a plan view showing an enlarged view of a part of the compressor according to one embodiment, and is a drawing to explain the case where the vanes are incorrectly assembled.

[0025] Figure 17 is a schematic diagram illustrating the force applied to the vane when the vane comes into contact with the roller.

[0026] FIG. 18 is a plan view showing an enlarged view of a part of the configuration of a compressor according to one embodiment.

[0027] FIG. 19 is an enlarged perspective view showing a part of the compressor configuration of FIG. 18.

[0028] FIG. 20 is a perspective view of a vane according to one embodiment.

[0029] The various embodiments of this document and the terms used therein are not intended to limit the technical features described in this document to specific embodiments, and should be understood to include various modifications, equivalents, or substitutions of said embodiments.

[0030] In relation to the description of the drawings, similar reference numerals may be used for similar or related components.

[0031] The singular form of the noun corresponding to the item may include one or multiple items, unless the relevant context clearly indicates otherwise.

[0032] In this document, each of the phrases such as "A or B", "at least one of A and B", "at least one of A or B", "A, B or C", "at least one of A, B and C", and "at least one of A, B, or C" may include any one of the items listed together in the corresponding phrase, or all possible combinations thereof.

[0033] The term "and / or" includes a combination of multiple related described components or any of the multiple related described components.

[0034] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish a component from other corresponding components and do not limit the components in other aspects (e.g., importance or order).

[0035] Terms such as "include" or "have" are intended to specify the existence of the features, numbers, steps, actions, components, parts, or combinations thereof described in this document, and do not preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0036] When it is said that a component is "connected," "combined," "supported," or "in contact" with another component, this includes not only cases where the components are directly connected, combined, supported, or in contact, but also cases where they are indirectly connected, combined, supported, or in contact through a third component.

[0037] When it is said that a component is located "on" another component, this includes not only cases where one component is in contact with the other, but also cases where another component exists between the two components.

[0038] Terms such as "upper side," "lower side," and "horizontal direction" used in the following description are defined based on the drawings, and the shape and location of each component are not limited by these terms.

[0039] Among the expressions used in the following description, "upper~", "lower~", etc., may be used to distinguish components by considering their relative positions, and these expressions may be replaced with expressions such as "first~", "second~".

[0040] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0041] FIG. 1 is an axial cross-sectional view of a compressor and an accumulator according to one embodiment of the present invention.

[0042] Referring to FIG. 1, a compressor (1) according to one embodiment of the present disclosure may include a compression section (including components such as a cylinder (100) and a roller (130)) configured to compress a refrigerant. A compressor (1) according to one embodiment of the present disclosure may include a drive motor (40) provided to provide power to the compression section. A compressor (1) according to one embodiment of the present disclosure may include a housing (30) that accommodates the compression section and the drive motor (40).

[0043] The housing (30) can form the exterior of the compressor (1). The housing (30) can be provided to accommodate the components of the compressor (1). Inside the housing (30), a receiving space (S) can be formed to accommodate the compression unit and the drive motor (40).

[0044] The housing (30) may be provided to receive oil. The housing (30) may be provided to store oil. The oil can reduce friction between the various members of the compressor (1) and lubricate the various members of the compressor (1).

[0045] A compressor inlet pipe (PI) may be connected to the inlet side of the housing (30). The housing (30) may be connected to the accumulator (15) by the compressor inlet pipe (PI). The compressor inlet pipe (PI) may be provided to guide the refrigerant flowing from the accumulator (15) into the housing (30). The compressor inlet pipe (PI) is connected to the cylinder (100), and the refrigerant guided by the compressor inlet pipe (PI) may flow into the cylinder chamber (110) inside the cylinder (100).

[0046] For example, if the compressor (1) includes an upper cylinder (100a) and a lower cylinder (100b), the compressor inlet pipe (PI) may include an upper cylinder inlet pipe (PI1) connected to the upper cylinder (100a) and a lower cylinder inlet pipe (PI2) connected to the lower cylinder (100b).

[0047] A compressor discharge pipe (PO) may be connected to the discharge side of the housing (30). The compressor discharge pipe (PO) may discharge the refrigerant compressed within the housing (30). The discharge pipe (PO) may be provided to guide the refrigerant discharged from inside the housing (30) to outside the housing (30). The compressor discharge pipe (P0) may be provided to guide the refrigerant within the receiving space (S) of the housing (30) to be discharged to outside the housing (30).

[0048] For example, the compressor inlet pipe (PI) can be connected to the lower part of the housing (30). For example, the compressor outlet pipe (PO) can be connected to the upper part of the housing (30).

[0049] For example, the housing (30) may include a base (31), a side frame (32), and a top cover (33). The base (31) may form the lower exterior of the housing (30). The side frame (32) may form the side wall of the housing (30). The top cover (33) may form the upper exterior of the housing (30). At least a portion of the base (31), the side frame (32), and the top cover (33) may be detachably connected. At least a portion of the base (31), the side frame (32), and the top cover (33) may be formed integrally.

[0050] The drive motor (40) can generate power. The drive motor (40) can generate rotational force. The drive motor (40) can convert electromagnetic force into mechanical rotational force.

[0051] The drive motor (40) may include a stator (41) fixed to the housing (30) and a rotor (42) rotatable relative to the stator (41). The stator (41) may include a stator core and a coil wound around the stator core. The rotor (42) may include a plurality of magnets. In the drawings, an inner rotor type drive motor (40) is shown in which the rotor (42) is positioned inside the stator (41), but the present disclosure is not limited thereto. The drive motor (40) may also be an outer rotor type in which the rotor (42) is positioned outside the stator (41). As long as the drive motor (40) can generate power, there is no restriction on the type of drive motor (40).

[0052] For example, the drive motor (40) can be placed on the compression section.

[0053] The compressor (1) may include a shaft (50). The shaft (50) may be provided to transmit power generated from the drive motor (40) to the compression section. The shaft (50) may be provided to connect the drive motor (40) and the compression section. The shaft (50) may be connected to the rotor (42). The shaft (50) may be fixed to the rotor (42) and provided to rotate together with the rotor (42). The shaft (50) may be connected to the roller (130) of the compression section, which will be described later. The shaft (50) may be provided to provide rotational force to the roller (130). For example, the shaft (50) may be provided to transmit rotational force to the upper roller (130a) and the lower roller (130b).

[0054] The shaft (50) can be extended along the vertical direction (V). The shaft (50) can be extended along the up-and-down direction. The shaft (50) can be extended along the direction of gravity. The shaft (50) can be extended along the height direction of the compressor (1).

[0055] The shaft (50) may be provided to penetrate the components of the compression section. For example, the shaft (50) may be provided to penetrate the muffler (150), cylinder cover (140), cylinder (100), and roller (130) in an approximately vertical direction (V). For example, the shaft (50) may be provided to penetrate the upper muffler (150a), upper cylinder cover (140a), upper cylinder (100a), upper roller (130a), mid plate (70), lower cylinder (100b), lower roller (130b), lower cylinder cover (140b), and lower muffler (150b) in an approximately vertical direction (V).

[0056] The compressor (1) may include a cam (60). The cam (60) may be provided on the outer surface of the shaft (50). The cam (60) may be provided to transmit the rotational force of the shaft (50) to the compression section.

[0057] The compressor (1) may include at least one cylinder (100), at least one roller (130), at least one vane (300), at least one cylinder cover (140), at least one muffler (150), and at least one cam (60). In the drawing, the cylinder (100), roller (130), vane (300), cylinder cover (140), muffler (150), and cam (60) are each described as having two of each. However, the drawing merely illustrates an example of the compressor (1). As an example, the compressor (1) may include one cylinder (100), one roller (130), one vane (300), one cylinder cover (140), one muffler (150), and one cam (60).

[0058] Meanwhile, the expressions "upper ~" and "lower ~" may be used to distinguish between multiple components included in the compressor (1). In the components where the expression "upper ~" is used, the reference numeral 'a' may be added, and in the components where the expression "lower ~" is used, the reference numeral 'b' may be added. For example, if the compressor (1) includes two cylinders (100), the cylinder positioned relatively higher among the two cylinders may be referred to as the upper cylinder (100a), and the cylinder positioned relatively lower among the two cylinders may be referred to as the lower cylinder (100b). If there is no need to distinguish between multiple components included in the compressor (1), the expressions "upper ~" and "lower ~" may not be used. For example, the description of the cylinder (100) may be a description common to both the upper cylinder (100a) and the lower cylinder (100b). In addition, the above description applies not only to the cylinder (100) but also to the roller (130), vane (300), cylinder cover (140), muffler (150), and cam (60).

[0059] In other words, the description of the cylinder (100) can be applied to the upper cylinder (100a) and the lower cylinder (100b), respectively. The description of the roller (130) can be applied to the upper roller (130a) and the lower roller (130b), respectively. The description of the vane (300) can be applied to the upper vane (300a) and the lower vane (300b), respectively. The description of the cylinder cover (140) can be applied to the upper cylinder (140a) and the lower cylinder (140b), respectively. The description of the muffler (150) can be applied to the upper muffler (150a) and the lower muffler (150b), respectively. The description of the cam (60) can be applied to the upper cam (60a) and the lower cam (60b), respectively.

[0060] FIG. 2 is a perspective view illustrating a partial configuration of a compressor according to an embodiment of the present invention. FIG. 3 is an exploded view illustrating a partial configuration of the compressor illustrated in FIG. 2. FIG. 4 is an exploded view illustrating a partial configuration of the compressor illustrated in FIG. 2.

[0061] Referring to FIGS. 2 to 4, a portion of the compressor (1) is described. An example is described in which there are two cylinders (100), rollers (130), vanes (300), cylinder covers (140), mufflers (150), and cams (60). However, as described above, the present disclosure is not limited to such examples.

[0062] The compressor (1) may include at least one cylinder (100).

[0063] The cylinder (100) may include a cylinder chamber (110). The cylinder chamber (110) may contain a refrigerant. Refrigerant discharged from an accumulator (15, see FIG. 1 and FIG. 2) may flow into the cylinder chamber (110) and be compressed in the cylinder chamber (110). The cylinder chamber (110) may be formed inside the cylinder (100). For example, the cylinder (100) may have a ring shape, and the cylinder chamber (110) may be formed in the inner part of the ring shape of the cylinder (100). The cylinder chamber (110) may include an inlet chamber (111) into which the refrigerant flows, and a compression chamber (112) into which the inlet refrigerant is compressed.

[0064] The cylinder (100) may include an inlet section (120) into which refrigerant flows. The inlet section (120) may be connected to a compressor inlet pipe (PI, see FIG. 2). Refrigerant flowing along the compressor inlet pipe (PI) may flow into the cylinder chamber (110) through the inlet section (120). The inlet section (120) may be provided to communicate with the cylinder chamber (110). Specifically, the inlet section (120) may be provided to communicate with the inlet chamber (111) of the cylinder chamber (110).

[0065] For example, the compressor (1) may include an upper cylinder (100a) and a lower cylinder (100b). The upper cylinder (100a) may be positioned above the lower cylinder (100b). The lower cylinder (100b) may be positioned below the upper cylinder (100a).

[0066] A mid plate (70) may be provided between the upper cylinder (100a) and the lower cylinder (100b).

[0067] The upper cylinder (100a) may include an upper cylinder chamber (110a). The upper cylinder chamber (110a) may include an upper inlet chamber (111a) into which refrigerant is introduced and an upper compression chamber (112a) into which the introduced refrigerant is compressed. The upper cylinder chamber (110a) may be formed on the inner side of the upper cylinder (100a). For example, the upper cylinder chamber (110a) may be defined as a space enclosed by the outer surface of the upper roller (130a), the inner surface of the upper cylinder (100a), the upper cylinder cover (140a), and the mid plate (70).

[0068] The upper cylinder (100a) may include an upper inlet (120a) into which refrigerant is introduced. The upper inlet (120a) may be connected to an upper cylinder inlet pipe (PI1, see FIG. 2). The upper inlet (120a) may be in communication with an upper cylinder chamber (110a). The upper inlet (120a) may be in communication with an upper inlet chamber (111a).

[0069] The lower cylinder (100b) may include a lower cylinder chamber (110b). The lower cylinder chamber (110b) may include a lower inlet chamber (111b) into which refrigerant is introduced and a lower compression chamber (112b) into which the introduced refrigerant is compressed. The lower cylinder chamber (110b) may be formed inside the lower cylinder (100b). For example, the lower cylinder chamber (110b) may be defined as a space enclosed by the outer surface of the lower roller (130b), the inner surface of the lower cylinder (100b), the lower cylinder cover (140b), and the mid plate (70).

[0070] The lower cylinder (100b) may include a lower inlet (120b) into which refrigerant is introduced. The lower inlet (120b) may be connected to a lower cylinder inlet pipe (PI2, see FIG. 2). The lower inlet (120b) may be in communication with a lower cylinder chamber (110b). The lower inlet (120b) may be in communication with a lower inlet chamber (111b).

[0071] The compressor (1) may include a mid plate (70) positioned between the upper cylinder (100a) and the lower cylinder (100b).

[0072] The mid plate (70) may be positioned below the upper cylinder (100a) to cover the lower side of the upper cylinder chamber (110a). The mid plate (70) may be positioned above the lower cylinder (100a) to cover the upper side of the lower cylinder chamber (110b). The mid plate (70) may be provided to partition the upper cylinder chamber (110a) and the lower cylinder chamber (110b).

[0073] The mid plate (70) may be coupled to the upper cylinder (100a) and / or the lower cylinder (100b). For example, the mid plate (70) may be screw-coupled to the upper cylinder (100a) and / or the lower cylinder (100b). However, the present disclosure is not limited to the examples described above, and the mid plate (70) may be coupled to the upper cylinder (100a) and / or the lower cylinder (100b) through various known coupling methods.

[0074] The compressor (1) may include at least one roller (130). For example, the number of rollers (130) may correspond to the number of cylinders (100).

[0075] The roller (130) may be rotatably provided in the cylinder chamber (110). The roller (130) may be provided to compress the refrigerant flowing into the cylinder chamber (110) as it rotates in the cylinder chamber (110). The roller (130) may receive rotational force from the shaft (50). The roller (130) may be eccentrically offset from the central axis of the shaft (50) by a cam (60). The roller (130) may rotate around the eccentric axis.

[0076] The roller (130) may have a ring shape. The outer diameter of the roller (130) may be smaller than the inner diameter of the cylinder (100). The outer surface of the roller (130) may rotate while in contact with the inner surface of the cylinder (100).

[0077] For example, the compressor (1) may include an upper roller (130a) and a lower roller (130b). The upper roller (130a) may be positioned above the lower roller (130b). The lower roller (130b) may be positioned below the upper roller (130a).

[0078] The upper roller (130a) may be rotatably provided in the upper cylinder chamber (110a). The upper roller (130a) may be provided to compress the refrigerant flowing into the upper cylinder chamber (110a) as it rotates. The upper roller (130a) may be provided to rotate eccentrically by means of an upper cam (60a) formed on the outer surface of the shaft (50).

[0079] The lower roller (130b) may be rotatably provided in the lower cylinder chamber (110b). The lower roller (130b) may be provided to compress the refrigerant flowing into the lower cylinder chamber (110b) as it rotates. The lower roller (130b) may be provided to rotate eccentrically by means of a lower cam (60b) formed on the outer surface of the shaft (50).

[0080] The compressor (1) may include a shaft (50).

[0081] The shaft (50) may include a shaft body (51), an intake hole (53), and an exhaust hole (54).

[0082] The shaft body (51) can form an oil passage (52). The shaft body (51) may have a hollow shape so that oil can flow inside the shaft body (51). The oil passage (52) may extend along the longitudinal direction of the shaft body (51). The oil passage (52) may extend along the approximately vertical direction (V).

[0083] A suction hole (53) may be formed at the lower end of the shaft body (51). A suction hole (53) may be provided at one end of the oil passage (52). A suction hole (53) may be provided to suck oil contained in the housing (30) into the oil passage (52). A suction hole (53) may be opened toward the bottom of the housing (30).

[0084] For example, the shaft (50) may include a paddle (55) provided inside the shaft body (51) and a pickup member (56) provided in the suction hole (53) to suck oil contained in the housing (30). However, the present disclosure is not limited to the example described above, and the shaft (50) may suck oil through various known methods.

[0085] The discharge hole (54) may be provided to discharge oil flowing along the oil passage (52). The discharge hole (54) may be connected to the oil passage (52) of the shaft body (51) and the outer surface of the shaft body (51). The oil discharged through the discharge hole (54) may flow into the compression components of the compressor (1).

[0086] The shaft (50) may include a plurality of discharge holes (54). The plurality of discharge holes (54) may be spaced apart along the longitudinal direction of the oil passage (52). The plurality of discharge holes (54) may be spaced apart along the approximately vertical direction (V). However, the present disclosure is not limited thereto, and the shaft (50) may include a single discharge hole (54) depending on the case.

[0087] The compressor (1) may include at least one cam (60). For example, the number of cams (60) may correspond to the number of rollers (130). For example, the number of cams (60) may correspond to the number of cylinders (100).

[0088] The cam (60) may be formed on the outer surface of the shaft (50). The cam (60) may be positioned eccentrically from the central axis of the shaft (50). The cam (60) may be coupled to the inner surface of the roller (130). For example, most of the outer surface of the cam (60) may be in contact with most of the inner surface of the roller (130).

[0089] The cam (60) may be provided to rotate the roller (130) eccentrically. As the cam (60) is positioned eccentrically with respect to the central axis of the shaft (50), the roller (130) coupled to the cam (60) may also be positioned eccentrically with respect to the central axis of the shaft (50). Thus, the cam (60) and the roller (130) can rotate eccentrically with respect to the central axis of the shaft (50), and as the roller (130) rotates, it can compress the refrigerant in the cylinder chamber (110).

[0090] Meanwhile, although it has been described that the cam (60) is a separate component from the shaft (50), the cam (60) may be provided as a component of the shaft (50). That is, the shaft (50) may include the cam (60). In this case, the cam (60) can be understood as being formed on the outer surface of the shaft body (51).

[0091] For example, the compressor (1) may include an upper cam (60a) and a lower cam (60b). The upper cam (60a) may be positioned above the lower cam (60b). The lower cam (60b) may be positioned below the upper cam (60a).

[0092] The upper cam (60a) may correspond to the upper roller (130a). The upper cam (60a) may be coupled to the inner surface of the upper roller (130a) to rotate the upper roller (130a) eccentrically.

[0093] The lower cam (60b) may correspond to the lower roller (130b). The lower cam (60b) may be coupled to the inner surface of the lower roller (130b) to eccentrically rotate the lower roller (130b).

[0094] In one embodiment, the upper cam (60a) and the lower cam (60b) may be eccentrically positioned in opposite directions with respect to the central axis of the shaft (50). Additionally, the upper roller (130a) and the lower roller (130b) may be eccentrically positioned in opposite directions with respect to the central axis of the shaft (50). Accordingly, the phase when the refrigerant in the upper cylinder chamber (110a) is compressed by the upper roller (130a) and the phase when the refrigerant in the lower cylinder chamber (110b) is compressed by the lower roller (130b) may be opposite to each other.

[0095] The compressor (1) may include at least one vane (300). For example, the number of vanes (300) may correspond to the number of rollers (130). For example, the number of vanes (300) may correspond to the number of cylinders (100).

[0096] The vane (300) may be positioned inside the cylinder (100). The vane (300) may be provided to partition the cylinder chamber (110). The vane (300) may partition the cylinder chamber (110) into an inlet chamber (111) into which the refrigerant is introduced and a compression chamber (112) into which the refrigerant is compressed. The vane (300) may be provided to be movable in conjunction with the rotation of the roller (130). One end of the vane (300) may be connected to the cylinder (100), and the other end of the vane (300) may be connected to the roller (130).

[0097] For example, the compressor (1) may include an upper vane (300a) and a lower vane (300b). The upper vane (300a) may be positioned above the lower vane (300b). The lower vane (300b) may be positioned below the upper vane (300a).

[0098] The upper vane (300a) may be positioned inside the upper cylinder (100a). The upper vane (300a) may be provided to partition the upper cylinder chamber (110a). The upper vane (300a) may be provided to partition the upper cylinder chamber (110a) into an upper inlet chamber (111a) and an upper compression chamber (112a). The upper vane (300a) may be provided to be movable in conjunction with the rotation of the upper roller (130a). One end of the upper vane (300a) may be connected to the upper cylinder (100a), and the other end of the upper vane (300a) may be connected to the upper roller (130a).

[0099] The upper vane (300a) can be movably installed on the upper cylinder (100a). The upper vane (300a) is connected to an elastic member (E) and can be arranged to contact the outer surface of the upper roller (130a) by means of elastic force, regardless of the position of the upper roller (130a) inside the upper cylinder (100a).

[0100] The lower vane (300b) may be positioned inside the lower cylinder (100b). The lower vane (300b) may be provided to partition the lower cylinder chamber (110b). The lower vane (300b) may be provided to partition the lower cylinder chamber (110b) into a lower inlet chamber (111b) and a lower compression chamber (112b). The lower vane (300b) may be provided to be movable in conjunction with the rotation of the lower roller (130b). One end of the lower vane (300b) may be connected to the lower cylinder (100b), and the other end of the lower vane (300b) may be connected to the lower roller (130b).

[0101] The lower vane (300b) can be movably installed on the lower cylinder (100b). The lower vane (300b) can be connected to an elastic member (E) and arranged to contact the outer surface of the lower roller (130b) by means of elastic force, regardless of the position of the lower roller (130b) inside the lower cylinder (100b).

[0102] The compressor (1) may include at least one cylinder cover (140). For example, the number of cylinder covers (140) may correspond to the number of cylinders (100).

[0103] The cylinder cover (140) may be provided to cover at least a portion of the cylinder chamber (110). The cylinder cover (140) may include a cover body (141) and a support member (142) extending from the cover body (141) and provided to support a shaft.

[0104] For example, the compressor (1) may include an upper cylinder cover (140a) and a lower cylinder cover (140b). The upper cylinder cover (140a) may be placed over the lower cylinder cover (140b). The lower cylinder cover (140b) may be placed under the upper cylinder cover (140a).

[0105] The upper cylinder cover (140a) may be placed over the upper cylinder (100a). The upper cylinder cover (140a) may be provided to cover the upper side of the upper cylinder chamber (110a). The upper cylinder cover (140a) may include an upper cover body (141a) and an upper support (142a). The upper cover body (141a) may be coupled to the upper cylinder (100a). The upper support (142a) may extend upward from the upper cover body (141a). The upper support (142a) may be provided to support the shaft (50). The upper support (142a) may be provided to surround a portion of the outer surface of the shaft (50). The upper support (142a) may function as a bearing that rotatably supports the shaft (50).

[0106] The upper cylinder cover (140a) may include an upper connection hole (143a) that connects the interior of the upper cylinder chamber (110a) and the upper muffler (150a). The refrigerant compressed in the upper cylinder chamber (110a) may flow to the upper muffler (150a) through the upper connection hole (143a). For example, the upper connection hole (143a) may be formed by penetrating the upper cover body (141a).

[0107] The lower cylinder cover (140b) may be positioned below the lower cylinder (100b). The lower cylinder cover (140b) may be provided to cover the lower side of the lower cylinder chamber (110b). The lower cylinder cover (140b) may include a lower cover body (141b) and a lower support member (142b). The lower cover body (141b) may be coupled to the lower cylinder (100b). The lower support member (142b) may extend downward from the lower cover body (141b). The lower support member (142b) may be provided to support the shaft (50). The lower support member (142b) may be provided to surround a portion of the outer surface of the shaft (50). The lower support (142b) can function as a bearing that rotatably supports the shaft (50).

[0108] The lower cylinder cover (140b) may include a lower connection hole (143b) that connects the interior of the lower cylinder chamber (110b) and the lower muffler (150b). The refrigerant compressed in the lower cylinder chamber (110b) may flow to the lower muffler (150b) through the lower connection hole (143b). For example, the lower connection hole (143b) may be formed by penetrating the lower cover body (141b).

[0109] The compressor (1) may include at least one valve (180). For example, the number of valves (180) may correspond to the number of cylinders (100).

[0110] A valve (180) may be provided in the cylinder cover (140) to allow or block the flow of refrigerant. The valve (180) may allow the flow of refrigerant based on whether the pressure of the refrigerant is above a certain level, and block the flow of refrigerant based on whether the pressure of the refrigerant is below a certain level.

[0111] For example, the compressor (1) may include an upper valve (180a) and a lower valve (180b). The upper valve (180a) may be positioned above the lower valve (180b). The lower valve (180b) may be positioned below the upper valve (180a).

[0112] An upper valve (180a) may be provided to open and close an upper connection hole (143a) of an upper cylinder cover (140a). The upper valve (180a) may open the upper connection hole (143a) based on the pressure of the refrigerant in the upper cylinder chamber (110a) being above a certain level. The upper valve (180a) may close the upper connection hole (143a) based on the pressure of the refrigerant in the upper cylinder chamber (110a) being below a certain level.

[0113] A lower valve (180b) may be provided to open and close a lower connection hole (143b) of a lower cylinder cover (140b). The lower valve (180b) may open the lower connection hole (143b) based on the pressure of the refrigerant in the lower cylinder chamber (110b) being above a certain level. The lower valve (180b) may close the lower connection hole (143b) based on the pressure of the refrigerant in the lower cylinder chamber (110b) being below a certain level.

[0114] The compressor (1) may include at least one muffler (150). For example, the number of mufflers (150) may correspond to the number of cylinders (100). For example, the number of mufflers (150) may correspond to the number of cylinder covers (140).

[0115] The muffler (150) may be provided to reduce noise generated when compressed refrigerant flows. The muffler (150) may be provided to receive refrigerant flowing out from the cylinder cover (140).

[0116] For example, the compressor (1) may include an upper muffler (150a) and a lower muffler (150b). The upper muffler (150a) may be positioned above the lower muffler (150b). The lower muffler (150b) may be positioned below the upper muffler (150a).

[0117] The upper muffler (150a) may be placed above the upper cylinder chamber (110a). The upper muffler (150a) may be placed above the upper cylinder (100a). The upper muffler (150a) may be placed above the upper cylinder cover (140a). The upper muffler (150a) may cover the upper cylinder cover (140a). The upper muffler (150a) may be coupled to the upper cylinder cover (140a) and / or the upper cylinder (100a). The upper muffler (150a) may reduce noise generated when the refrigerant compressed in the upper cylinder chamber (110a) passes through the upper cylinder (140a).

[0118] The upper muffler (150a) may include a discharge section (151) for discharging refrigerant. Refrigerant within the upper muffler (150a) may be discharged to the outside of the compression section through the discharge section (151). Additionally, as will be described later, refrigerant within the lower muffler (150b) may also flow into the upper muffler (150a) and then be discharged to the outside of the compression section through the discharge section (151).

[0119] The lower muffler (150b) may be placed below the lower cylinder chamber (110b). The lower muffler (150b) may be placed below the lower cylinder (100b). The lower muffler (150b) may be placed below the lower cylinder cover (140b). The lower muffler (150b) may cover the lower cylinder cover (140b). The lower muffler (150b) may be coupled to the lower cylinder cover (140b) and / or the lower cylinder (100b). The lower muffler (150b) can reduce noise generated when the refrigerant compressed in the lower cylinder chamber (110b) passes through the lower cylinder (140b).

[0120] The compressor (1) may include at least one vane (300). In the drawing, two vanes (300) are described as an example. However, the drawing merely illustrates an example of the compressor (1). For example, the compressor (1) may include one vane (300).

[0121] Meanwhile, the expressions "upper ~" and "lower ~" may be used to distinguish between multiple components included in the compressor (1). In the components where the expression "upper ~" is used, the reference numeral 'a' may be added, and in the components where the expression "lower ~" is used, the reference numeral 'b' may be added. For example, if the compressor (1) includes two vanes (300), the vane positioned relatively higher among the two vanes may be referred to as the upper vane (300a), and the vane positioned relatively lower among the two vanes may be referred to as the lower vane (100b).

[0122] If there is no need to distinguish between the multiple components included in the compressor (1), the expressions “upper ~” and “lower ~” may not be used. For example, the description of the vane (300) may be a description common to both the upper vane (300a) and the lower vane (300b).

[0123] In other words, the description of the vane (300) can be applied to the upper vane (300a) and the lower vane (300b), respectively. A detailed description of the configuration of the vane (300) according to one embodiment of the present invention will be described later in the following drawings.

[0124] FIG. 5 is a cross-sectional view along the A-A' direction of the compressor illustrated in FIG. 2. FIG. 6 is a perspective view illustrating a part of the configuration of a compressor according to an embodiment of the present invention. FIG. 7 is a cross-sectional perspective view illustrating a part of the configuration of a compressor according to an embodiment of the present invention. FIG. 8 is a cross-sectional perspective view illustrating a part of the configuration of a compressor according to an embodiment of the present invention, showing a vane properly assembled to a cylinder. FIG. 9 is a cross-sectional perspective view illustrating a part of the configuration of a compressor according to an embodiment of the present invention, showing a vane improperly assembled to a cylinder.

[0125] For convenience of explanation, in the following description, configurations that are substantially identical or similar to those described with reference to FIGS. 2 to 4 may be omitted or briefly described.

[0126] Referring to FIGS. 5 through 9, a compressor (1) according to one embodiment of the present invention may be provided such that a vane (300) is mounted on a cylinder (100). The cylinder (100) may include a slot portion (200) that forms a slot (201) into which the vane (300) is received. The vane (300) may be movably assembled in a slot (201) provided on one side of the cylinder (100).

[0127] Specifically, the inner side of the cylinder (100) may include a cylinder chamber (110) in which a refrigerant is compressed, and a slot (201) formed extending outward from one side of the cylinder chamber (110) to the outer side of the cylinder (100). The slot (201) formed in the cylinder (100) may include a first slot (211) and a second slot (221) arranged to be spaced apart with respect to the axial direction of the shaft (50). For example, the cylinder (100) may include a first slot section (210) and a second slot section (220) in which the first slot (211) and the second slot (221) are formed. The first slot section (210) and the second slot section (220) may be arranged to be spaced apart from each other in the axial direction of the shaft (50) on one side of the cylinder (100).

[0128] The vane (300) may be arranged to contact the roller (130) on one side and the elastic member (E) on the other side. At this time, the part of the vane (300) that contacts the roller (130) may be referred to as the front end of the vane (300), and the part that contacts the elastic member (E) may be referred to as the rear end of the vane (300). That is, the vane (300) may be inserted into the slot (201) such that the rear end faces the slot portion (200). The vane (300) may be arranged to move in and out of the slot (201) according to the movement of the roller (130) which pivots inside the cylinder (100) by contacting the cam (60) of the shaft (50). At this time, the elastic member (E) may include a spring.

[0129] The vane (300) can be assembled with the slot (201) at the bottom dead center. At this time, the bottom dead center may refer to the point where the vane (300) is located at the innermost part of the slot (201) based on the vane (300) that is received in the slot (201) and moves back and forth. When the vane (300) is at the bottom dead center, the entire vane (300) can be inserted into the slot (201) of the cylinder (100). When the vane (300) is at the bottom dead center, a roller (130) that pivots inside the cylinder (100) can be provided to block the opening of the slot (201). Accordingly, when the roller (130) blocks the opening of the slot (201), the entire vane (300) can be inserted into the slot (201) of the cylinder (100). That is, when the roller (130) is positioned over the opening of the slot (201), the vane (300) can be positioned at the bottom dead center.

[0130] The vane (300) may be formed asymmetrically with respect to the center plane (301) or arranged to have an asymmetrical pattern. Accordingly, when the vane (300) is assembled into the slot (201), it may be assembled incorrectly or correctly. The compressor (1) may include an assembly prevention structure to prevent misassembly of the vane (300). Since the vane (300) is provided with an asymmetrical shape, it may be provided so that the operating noise of the compressor (1) is reduced. A detailed description of the asymmetrical structure or features of the vane (300) will be described later through other drawings below.

[0131] Since the vane (300) is provided with an asymmetrical shape based on the center plane (301), it can be configured to be misassembled or properly assembled by reversing the upper and lower sides based on the radial direction. If the vane (300) is misassembled, the effect of the asymmetrical shape of the vane (300) may not be manifested. Alternatively, the noise reduction effect of the vane (300) in the compressor (1) operation may be reduced due to the misassembly. In other words, defects may occur in the production of the compressor (1). Therefore, by making it impossible to assemble the vane (300) in the event of misassembly, the defect rate in the production of the compressor (1) can be reduced, thereby stabilizing the production line.

[0132] Specifically, the vane (300) may include a first vane portion (310) and a second vane portion (320) separated in the axial direction of the shaft (50). That is, the first vane portion (310) and the second vane portion (320) may be arranged to be spaced apart in the vertical direction. The cylinder (100) includes a slot portion (200) that forms a slot (201) in which the vane (300) is received, and the slot portion (200) may include a first slot portion (210) and a second slot portion (220) arranged to receive the first vane portion (310) and the second vane portion (320) of the vane (300), respectively.

[0133] The first vane part (310) and the second vane part (320) of the vane (300) can be received in the first slot (211) and the second slot (221), respectively, of the cylinder (100). At this time, when the first vane part (310) is received in the first slot (211) and the second vane part (320) is received in the second slot (221), the asymmetric configuration of the vane (300), which will be described later, can be arranged to exert an effect when the compressor (1) is operated. That is, when the first vane part (310) is received in the first slot (211) and the second vane part (320) is received in the second slot (221) as described above, it can be understood that the vane (300) is properly assembled in the slot (201).

[0134] Conversely, assuming the configuration of the same vane (300), if the first vane part (310) is received in the second slot (221) and the second vane part (320) is received in the first slot (211), it can be understood that the vane (300) is assembled in a form rotated 180 degrees with respect to the radial direction compared to the case where it is assembled correctly. Accordingly, the position or shape of the asymmetrical structure of the vane (300) described later may be provided in a reversed position with respect to the up-down or left-right directions compared to the case where the vane (300) is assembled correctly in the slot (201). Accordingly, the effect that occurs when the vane (300) is assembled correctly in the slot (201) may not be exerted. That is, in such a case, it can be understood that the vane (300) is incorrectly assembled in the slot (201).

[0135] Even if an asymmetric configuration is provided in the vane (300), if the size of the asymmetric configuration is not large, the vane (300) can be assembled into the slot (201) of the cylinder (100) in both the correct assembly direction and the incorrect assembly direction. Additionally, if the vane (300) is assembled into the cylinder (100) in either the incorrect assembly direction or the correct assembly direction, it may be difficult to determine whether there is an incorrect assembly during the manufacturing process.

[0136] If the vane (300) is incorrectly assembled into the slot (201) of the cylinder (100), the noise reduction function of the vane (300) may be reduced compared to when it is correctly assembled. That is, even if assembly is possible during the process, the performance of the compressor (1) with the vane (300) incorrectly assembled may be reduced compared to the performance of the compressor (1) with the vane (300) correctly assembled. In other words, the defect rate during the process may increase as the vane (300) is incorrectly assembled.

[0137] In order to reduce the defect rate during the process, the vane (300) may include a structure to prevent misassembly. That is, when the vane (300) is received in the slot (201) in a misassembly direction during the process, the vane (300) is prevented from being assembled into the slot (201), thereby reducing the defect rate of the process.

[0138] For example, when the vane (300) is inserted into the slot (201) in the direction of misassembly, it may be arranged so that a rear portion of the vane (300) interferes with the slot portion (200) of the cylinder (100). In other words, when the vane (300) is inserted into the slot (201), if the first vane portion (310) corresponds to the second slot (221) and the second vane portion (320) corresponds to the first slot (211), the rear portion of the vane (300) may be caught on the slot portion (200) of the cylinder (100) to prevent the vane (300) from being inserted into the slot (201).

[0139] Accordingly, the first vane portion (310) may include a locking projection (311) protruding radially outward from the shaft (50) to restrict the first vane portion (310) from being received in the second slot (221). Additionally, the cylinder (100) may include a locking portion (222) provided on the inner side of the second slot (221) so that the first vane portion (310) is caught when the first vane portion (310) is received in the second slot (221). That is, a locking portion (222) may be formed in the second slot portion (220) of the cylinder (100).

[0140] More specifically, the first vane portion (310) of the vane (300) may include a locking projection (311) formed by protruding rearward from the rear end of the vane (300). Additionally, the second slot portion (220) of the cylinder (100) may include a locking portion (222) provided to interfere with the locking projection (311) of the first vane portion (310) when the vane (300) is incorrectly assembled. Accordingly, when the vane (300) is incorrectly assembled into the slot (201), the locking projection (311) of the first vane portion (310) may come into contact with the locking portion (222) of the second slot portion (220), thereby blocking the assembly of the vane (300).

[0141] Referring to FIG. 9, an example can be described of a case where the vane (300) is assembled to the cylinder (100) in a vertical direction. The vane (300) can be assembled to be fitted into the slot (201) of the cylinder (100) in a vertical direction at a position corresponding to the bottom dead center. For example, the first slot (211) in the cylinder (100) can be positioned above the second slot (221). For example, in the case where the vane (300) is assembled incorrectly, the first vane part (310) can be fitted from the upper side to the lower side of the slot (201) in such a manner that the first vane part (310) is positioned below the second vane part (320).

[0142] At this time, the vane (300) can be assembled so that the first vane portion (310) is received in the second slot (221) as the vane (300) is incorrectly assembled in the cylinder (100). As the first vane portion (310) moves from the upper side to the lower side of the second slot (221), the locking projection (311) of the first vane portion (310) can come into contact with the locking portion (222) of the second slot portion (220). As the locking portion (222) supports the locking projection (311) upward, the rear end of the vane (300) can be incompletely inserted into the slot (201).

[0143] Specifically, if the vane (300) is incorrectly assembled, the rear end of the vane (300) may be caught in the slot portion (200). That is, the catch projection (311) of the first vane portion (310) is supported upward by the second slot portion (220), and the first vane portion (310) may be provided to be blocked from being received into the second slot (221).

[0144] For example, the vane (300) may be configured such that the radial lengths of the shafts (50) of the first vane portion (310) and the second vane portion (320) are different from each other. The radial length of the first vane portion (310), which includes a locking projection (311), may be configured to be longer than the radial length of the second vane portion (320).

[0145] For example, a slot portion (200) formed by being recessed radially outward from the inner circumference of a cylinder (100) may be provided such that the recessed lengths of the first slot portion (210) and the second slot portion (220) are different from each other. In this case, the recessed length of the second slot portion (220) may be provided to be shorter than the recessed length of the first slot portion (210). That is, the radial length of the second slot (221) may be provided to be shorter than the radial length of the first slot (211).

[0146] Therefore, when assembling the vane (300) in the direction of misassembly, the rear end of the vane (300) catches on the slot portion (200), and the vane (300) can be inserted into the slot (201) in a tilted shape. Accordingly, the rear end of the vane (300) can protrude upward from the cylinder (100). In other words, the rear end of the second vane portion (320) can protrude upward from the cylinder (100). As an incomplete connection occurs in which the rear end of the vane (300) protrudes upward from the cylinder (100), the misassembly can be easily determined during the manufacturing process. That is, assembly defects can be detected in advance during the manufacturing process, thereby reducing the defect rate of the process.

[0147] Regarding the case where the vane (300) is incorrectly assembled, the example was described as the vane (300) being assembled in a direction perpendicular to the slot (201); however, the present invention is not limited to this embodiment. The vane (300) may be provided to be assembled in a radial direction rather than a direction perpendicular to the slot (201) of the cylinder (100). Even in this case, if the vane (300) is assembled in an incorrectly assembled direction, the end of the locking projection (311) of the first vane part (310) may come into contact with the second slot part (220), thereby preventing the vane (300) from being fully inserted.

[0148] If the vane (300) is misassembled in the radial direction, the vane (300) may be configured so that it is not inserted to the position of the bottom dead center. Accordingly, the misassembled vane (300) may not be fully accommodated in the cylinder (100), and the vane (300) may be assembled so that a portion of its front end protrudes into the inner space of the cylinder (100). Accordingly, the misassembly can be easily determined during the manufacturing process. In other words, assembly defects can be detected in advance during the manufacturing process, thereby reducing the defect rate of the process.

[0149] With reference to FIG. 8, when the vane (300) is assembled, the rear end of the vane (300) and the slot portion (200) may be arranged to be spaced apart by a predetermined distance. In other words, the rear side of the first vane portion (310) may be arranged to be spaced apart by a predetermined distance from the first slot portion (210), and the rear side of the second vane portion (320) may be arranged to be spaced apart by a predetermined distance from the second slot portion (220). At this time, the distance between the first vane portion (310) and the first slot portion (210) may be arranged to be the same as the distance between the second vane portion (320) and the second slot portion (220).

[0150] The operating principle of the present invention according to the above description can be provided in the same way in the following embodiments (see FIGS. 10 to 13).

[0151] Back pressure can be formed at the rear side of the vane (300) to push the vane (300) inward toward the cylinder (100) with discharge pressure. At this time, if the gap between the rear of the vane (300) and the slot portion (200) is insufficient, back pressure is not properly formed at the rear side of the vane (300), and the chattering noise described later may increase. A detailed explanation of the method for reducing the chattering noise generated during the operation of the compressor (1) will be described later in another drawing below.

[0152] The cylinder (100) may include a through hole (101) that penetrates the cylinder (100) in a vertical direction on one side. Specifically, the cylinder (100) may have a through hole (101) formed that penetrates the slot portion (200). At this time, the through hole (101) may be provided to penetrate only half of the slot portion (200). In other words, the through hole (101) may be provided to penetrate only the first slot portion (210).

[0153] The through hole (101) may be provided to be connected to the first slot (211). The through hole (101) may be provided to form at least a part of the inner surface of the first slot (211). The through hole (101) may be provided at the inner end of the first slot (211). Accordingly, the first slot (211) formed in the first slot portion (210) may include a rectangular area having a shape similar to the cross-section of the vane (300) and a circular area formed by the through hole (101).

[0154] The second slot portion (220) may not be penetrated by the through hole (101) penetrating the first slot portion (210). Accordingly, the second slot (221) may be formed in an overall approximately rectangular shape.

[0155] The recessed length of the first slot (211) can be adjusted according to the position of the through hole (101) formed in the first slot portion (210). Accordingly, by including the through hole (101) in the first slot portion (210), the recessed length to the inner surface of the first slot (211) can be arranged to be longer than the recessed length to the inner surface of the second slot (221).

[0156] That is, the cylinder (100) can be configured to have different recess lengths for the first slot (211) and the second slot (221) through a through hole (101) that penetrates only half of the slot portion (200) so that the cylinder (100) penetrates only the first slot portion (210) and does not penetrate the second slot portion (220). In other words, the cylinder (100) can be configured so that only the first slot portion (210) is penetrated, excluding the second slot portion (220), thereby forming a catch portion (222) on the second slot portion (220). In other words, a catch portion (222) can be formed on the inner surface of the second slot (221) by penetrating only half of the slot portion (200) of the cylinder (100).

[0157] However, the method of forming a locking portion (222) in the cylinder (100), that is, the method of forming different recessed lengths of the first slot (211) and the second slot (221), is not limited to the method of forming a through hole (101) that penetrates only half of the aforementioned slot portion (200). Various methods of forming the locking portion (222) may be included, such as forming a through hole that penetrates the entire slot portion (200) of the cylinder (100), or forming a through hole in the slot portion (200) of the cylinder (100) but making different recessed lengths of the first slot (211) and the second slot (221). For example, even when penetrating the entire cylinder (100), the recessed lengths of the first slot (211) and the second slot (221) may be arranged to be different, and a detailed explanation thereof will be described later in other drawings below.

[0158] For example, the first slot portion (210) of the cylinder (100) may include a through hole (101) that penetrates the cylinder (100) in the axial direction. The through hole (101) may be formed on the inner side of the first slot portion (210). When the first vane portion (310) is received in the first slot (211), the locking projection (311) may be inserted radially into the through hole (101) formed in the first slot portion (210). In other words, the distance between the rear side of the first vane portion (310) and the first slot portion (210) may refer to the distance between the end of the locking projection (311) formed on the rear side of the first vane portion (310) and the surface facing the end of the locking projection (311) on the inner circumference of the through hole (101) provided on the inner side of the first slot portion (210).

[0159] For example, the second slot portion (220) of the cylinder (100) may not include a through hole (101) that penetrates the cylinder (100) in the axial direction. In other words, the through hole (101) penetrating the first slot portion (210) may be provided so as not to extend to the second slot portion (220). The second slot portion (220) may be formed by being recessed in a shape similar to that of the second vane portion (320). The recessed length of the second slot portion (220) may be provided to be longer than the axial length of the second vane portion (320). That is, the recessed length of the second slot portion (220) may be provided to be longer by the distance between the rear side of the first vane portion (310) and the first slot portion (210) compared to the axial length of the second vane portion (320).

[0160] The second slot portion (220) may include a locking portion (222). The locking portion (222) may refer to a portion including a surface facing the end of the second vane portion (320). For example, the locking portion (222) may refer to a portion located inside the through hole (101) when the through hole (101) of the first slot portion (210) is extended to the second slot (221). However, it is not limited to this embodiment, and may refer to various embodiments including a portion that overlaps axially with the locking projection (311) of the first vane portion (310) when the vane (300) is at the bottom dead center position.

[0161] Meanwhile, the second vane portion (320) may include a second vane portion projection (321). The second vane portion projection (321) may be provided to have a smaller protrusion amount compared to the catch projection (311) of the first vane portion (310).

[0162] The compressor (1) may include an elastic member (E) that supports the vane (300) so that it can move back and forth. The elastic member (E) may support the rear end of the vane (300). The vane (300) may include a concave groove on the rear side in which the elastic member (E) is received between the locking projection (311) of the first vane part (310) and the second vane part projection (321) of the second vane part (320). The left-hand portion of the elastic member (E) may support the vane (300) by contacting the concave groove portion of the vane (300). The elastic member (E) may include an elastic part that undergoes elastic deformation and left-hand portions provided on both sides of the elastic part. In this case, the left-hand portion may refer to a section in the coil elastic member (E) where the pitches of the elastic members (E) are attached to each other. That is, the left portion of the elastic member (E) is received in the concave groove provided on the rear side of the vane (300), so that the elastic member (E) can be provided to support the vane (300).

[0163] At the rear side of the vane (300), the catch projection (311) of the first vane portion (310) and the second vane portion projection (321) of the second vane portion (320) can be formed to protrude from the concave groove portion of the vane (300) toward the rear of the vane (300). That is, the distance from the concave groove portion to the end of the catch projection (311) can be referred to as the first protrusion length, and the distance from the concave groove portion to the end of the second vane portion projection (321) can be referred to as the second protrusion length.

[0164] Preferably, the first protrusion length and the second protrusion length may be provided to be at least twice the length of the left-hand portion in a direction parallel to the protrusion direction of the protrusion in the elastic member (E). Accordingly, the catch protrusion (311) and the second vane portion protrusion (321) provided on the upper and lower sides of the elastic member (E) may be provided to guide the elastic member (E) in the vertical direction. That is, the catch protrusion (311) and the second vane portion protrusion (321) provided on the rear side of the vane (300) may guide the elastic member (E) to prevent the elastic member (E) from coming off.

[0165] Meanwhile, on the rear side of the vane (300), a coupling projection (330) may be provided that is received by an elastic member (E) and coupled with the elastic member (E). The coupling projection (330) may be located between the first vane portion (310) and the second vane portion (320). In other words, the coupling projection (330) may be located between the catch projection (311) of the first vane portion (310) and the second vane portion projection (321) of the second vane portion (320). Additionally, a concave groove may be provided around the coupling projection (330). By being received by the elastic member (E), the coupling projection (330) can guide the elastic member (E) to prevent the elastic member (E) from being received by the concave groove.

[0166] Preferably, the protrusion length from the concave groove of the second vane projection (321) can be provided in the range of 0.3 to 0.8 times the protrusion length from the concave groove of the catch projection (311) of the first vane (310). Accordingly, the second vane projection (321) can be provided to ensure structural stability (prevention of detachment of the elastic member (E)) by preventing the elastic member (E) from being exposed to the outside while maintaining a certain distance from the catch portion (222) of the second slot portion (220).

[0167] FIG. 10 is a cross-sectional perspective view illustrating a part of the configuration of a compressor according to an embodiment of the present invention. FIG. 11 is a side cross-sectional view illustrating an enlarged part of the configuration of FIG. 10. FIG. 12 is a side cross-sectional view illustrating a part of the configuration of a compressor according to an embodiment of the present invention, showing a vane properly assembled to a cylinder. FIG. 13 is a side cross-sectional view illustrating a part of the configuration of a compressor according to an embodiment of the present invention, showing a vane improperly assembled to a cylinder.

[0168] Referring to FIGS. 10 to 13, another method of forming a locking portion (222) for preventing misassembly of a vane (300) in the slot portion (200) of the aforementioned cylinder (100) is described. Accordingly, in the following description, configurations that are substantially the same or similar as those described with reference to FIGS. 6 to 9 may be omitted or briefly described.

[0169] Referring to FIGS. 10 to 13, the cylinder (100) may include a through hole (101a, 102a) that penetrates the cylinder (100) in a diagonal direction on one side. Specifically, the cylinder (100) may have a through hole (101a, 102a) formed that penetrates the slot portion (200a). In other words, a first through hole (101a) may be formed in the first slot portion (210a), and a second through hole (102a) may be formed in the second slot portion (220a).

[0170] Accordingly, the first slot (211a) and the second slot (221a) may both include a rectangular area with a shape similar to the cross-section of the vane (300a) and a circular area formed by the through holes (101a, 102a).

[0171] At this time, the slot portion (200a) may be penetrated in a diagonal direction inclined in the direction in which the slot (201a) is recessed. In other words, the slot portion (200a) may include a through hole (101a, 102a) formed in a diagonal direction. Accordingly, the position of the first through hole (101a) formed in the first slot portion (210a) and the position of the second through hole (102a) formed in the second slot portion (220a) may be arranged so as not to be aligned with respect to the vertical direction.

[0172] For example, the radial position of the first through hole (101a) may be arranged to be closer to the outer surface of the cylinder (100) than the radial position of the second through hole (102a). Accordingly, the recessed length to the inner surface of the first slot (211a) containing the first through hole (101a) may be arranged to be longer than the recessed length to the inner surface of the second slot (221a) containing the second through hole (102a). Accordingly, a catch portion (222a) may be formed on the inner surface of the second slot (221a).

[0173] As the through holes (101a, 102a) penetrate the slot portion (200a) in a diagonal direction, the cross-section of the through holes (101a, 102a) formed in the slot portion (200a) may be provided to be inclined in a diagonal direction. In this case, the diagonal direction may refer to a direction inclined toward the direction of indentation of the slot (201a) relative to the vertical direction. That is, the inner surface of the slot (201a) may include an inclined surface (213a, 223a) inclined toward the direction of indentation of the slot (201a). In other words, the inner surface of the first slot (211a) may include a first inclined surface (213a), and the inner surface of the second slot (221a) may include a second inclined surface (223a).

[0174] At this time, the vane (300a) may be provided so as to be spaced apart from the inner surface of the slot (201a) by a predetermined distance. The end of the vane (300a) adjacent to the inner surface of the slot (201a) may be provided to have an incline corresponding to the inclined surface (213a, 223a) formed on the inner surface of the slot (201a).

[0175] For example, the end of the first vane portion (310a) and the end of the second vane portion (320a) may respectively represent the end of the locking projection (311a) and the end of the second vane portion projection (321a). In other words, the end (313a) of the locking projection (311a) and the end (323a) of the second vane portion projection (321a) may be inclined to have an inclination corresponding to the first inclined surface (213a) and the second inclined surface (223a), respectively.

[0176] Accordingly, the locking projection (311a) of the first vane part (310a) and the second vane part projection (321a) of the second vane part (320a) can be spaced apart from the inner surface of the first slot (211a) and the inner surface of the second slot (221a), respectively, at a constant distance.

[0177] FIG. 14 is a perspective view of a vane according to an embodiment of the present invention. FIG. 15 is an enlarged plan view illustrating a part of a compressor according to an embodiment of the present invention, intended to explain the case where the vane is properly assembled. FIG. 16 is an enlarged plan view illustrating a part of a compressor according to an embodiment, intended to explain the case where the vane is incorrectly assembled. FIG. 17 is a schematic diagram illustrating the force applied to the vane when the vane comes into contact with a roller.

[0178] Referring to FIGS. 14 to 17, chattering noise may occur depending on the movement of the vane (300) during operation of the compressor (1) according to one embodiment of the present invention. For example, noise may be generated due to a collision caused by mechanical vibrations occurring as the vane (300) is received in the slot (201) and moves back and forth, which causes the front end of the vane (300) and the outer surface of the roller (130) to separate and come into contact without maintaining contact. In other words, when the compressor (1) is operated, if the contact force between the vane (300) and the roller (130) has a negative value due to a specific factor, a gap may occur between the vane (300) and the roller (130), causing the vane (300) and the roller (130) to collide. At this time, the contact force between the vane (300) and the roller (130) can be expressed as follows.

[0179]

[0180] The above-described formula (1) can be explained with reference to FIG. 17. First, for each sign of F, it can be assumed that the direction toward the center of the cylinder (100) has a positive value. The contact force between the vane (300) and the roller (130), is the resultant force of the force exerted by the gas at the front and rear ends of the vane (300) on the front and rear ends of the vane (300). The force applied to the vane (300) by the elastic member (E) attached to the rear end of the vane (300). Frictional force due to viscous friction between the vane (300) and the slot portion (200), This can mean the inertial force due to the advance and retreat of the vane (300).

[0181] More specifically, Among the factors of The factor affecting it may be pressure caused by gas applied to the front surface (303) of the vane (300) and the rear surface of the vane (300). The front surface (303) of the vane (300) may refer to a surface including a contact line (302) formed by contact with the roller (130) at the front end of the vane (300). At this time, as the roller (130) rotates, the position of the contact line (302) where the roller (130) and the vane (300) come into contact may change on the front surface (303) of the vane (300). The rear surface of the vane (300) may refer to a surface facing the slot portion (200) at the rear end of the vane (300), excluding the side of the vane (300).

[0182] For example, the roller (130) of the compressor (1) according to one embodiment of the present invention may be arranged to rotate clockwise with reference to FIGS. 15 to 17. At this time, based on the rotational movement of the roller (130), an inlet chamber (111) into which refrigerant is introduced may be formed in a space provided clockwise from the vane (300), and a compression chamber (112) into which refrigerant is compressed and discharged may be formed in a space provided counterclockwise from the vane (300).

[0183] In other words, the vane (300) can divide the cylinder chamber (110) provided inside the cylinder (100) into an inlet chamber (111) and a compression chamber (112) as it comes into contact with the roller (130). Accordingly, the side and front surface (303) of the vane (300) can form one side of the inlet chamber (111) and the compression chamber (112) based on the contact line (302) of the vane (300). Specifically, the surface located on the side of the inlet chamber (111) based on the contact line (302) on the front surface (303) of the vane (300) can be called the inlet chamber surface (304), and the surface located on the side of the compression chamber (112) can be called the compression chamber surface (305). That is, the shear surface (303) of the vane (300) can be divided into an inflow chamber surface (304) and a compression chamber surface (305) based on the contact line (302).

[0184] Except for the force caused by the gas applied to the side of the vane (300) that does not have a direct effect on it The determining factor may be the sum of the force of the gas applied to the inlet chamber surface (304) and the compression chamber surface (305) at the front end of the vane (300) and the force of the gas applied to the rear surface of the vane (300) at the rear end of the vane (300).

[0185] applied to the compression chamber surface (305) It can be formed by compressed refrigerant applied to the inlet chamber surface (304). It can be formed by the refrigerant before compression. Applied to the rear end surface of the vane (300). It can be formed by the gas discharged after compression is completed. At this time, the force applied to the inlet chamber surface (304) and the compression chamber surface (305) is It can act as a negative value. Therefore To maintain a stable positive value, the resultant force applied to the inlet chamber surface (304) and the compression chamber surface (305) can be reduced. That is, if the resultant force applied to the shear surface (303) of the vane (300) is reduced, chattering noise can be reduced.

[0186] In a compressor (1) according to one embodiment of the present invention, when the inlet pressure and compression pressure of the refrigerant are determined, the resultant force applied to the shear surface (303) of the vane (300) can be reduced when the area of ​​the compression chamber surface (305) is reduced. Specifically, as the pressure of the refrigerant in the compression chamber (112) is arranged to be higher than that of the refrigerant in the inlet chamber (111), the overall force applied to the shear surface (303) of the vane (300) can be reduced when the size of the area of ​​the inlet chamber surface (304) is reduced. For vanes (300) having the same thickness, the total area of ​​the shear surface (303) can be arranged to be approximately the same. Accordingly, when the area of ​​the compression chamber surface (305) is reduced, the area of ​​the inflow chamber surface (304) is increased, but the force of gas per unit area applied to the compression chamber surface (305) is greater than the force of gas per unit area applied to the inflow chamber surface (304), so even if there is no change in the total area of ​​the shear surface (303), the overall force applied to the shear surface (303) can be reduced.

[0187] For example, the shear surface (303) of the vane (300) may be formed in a shape that is asymmetric with respect to the center surface (301) of the vane (300). That is, compared to the case where the shear surface (303) of the vane (300) is formed symmetrically, the area of ​​the compression chamber surface (305) may be reduced. In other words, the shear surface (303) of the vane (300) may be inclined to face the inlet chamber (111). As the area of ​​the compression chamber surface (305) is reduced, The value of is increased Even at the top dead center with the largest negative value, the chattering noise of the vane (300) can be minimized.

[0188] However, conversely, if the vane (300) is incorrectly assembled, the chattering noise of the vane (300) may be increased. Specifically, if the vane (300) is incorrectly assembled, the shear surface (303) of the vane (300) may be inclined to face the compression chamber (112), and accordingly, the area of ​​the compression chamber surface (305) of the vane (300) may be increased. Therefore, The value of may decrease, which could actually increase chattering noise.

[0189] Accordingly, the compressor (1) according to the present invention can prevent the problem of increased noise in advance by providing a structure to prevent misassembly in the vane (300) and the cylinder (100). In other words, by providing a locking projection (311) and a locking part (222) on the rear side of the vane (300) and the slot part (200), respectively, the problem of increased noise caused by misassembly of the vane (300) can be prevented in advance. In addition, by preventing the problem of increased noise of the vane (300) in advance, the defect rate in the process can be reduced and the process can be stabilized.

[0190] FIG. 18 is a plan view showing an enlarged portion of a compressor according to one embodiment. FIG. 19 is a perspective view showing an enlarged portion of a compressor according to FIG. 18.

[0191] Referring to FIGS. 18 and 19, the structure preventing misassembly of a compressor (1) according to one embodiment of the present invention is not limited to being applied only to the case where the shear surface (403) of the vane (400) has an asymmetric shape. Even if the shear surface (403) of the vane (400) is symmetric, it may be applied even if a structure or pattern is included on one side of the vane (400) to make the vane (400) asymmetric with respect to the center plane (301) or the center axis (not shown) of the vane (400) in the radial direction. That is, in cases where the misassembly and correct assembly of the vane (400) are distinguished based on whether the effect of the structure included in the vane (400) is properly exerted according to the assembly direction of the vane (400), the structure preventing misassembly of a compressor (1) according to one embodiment of the present invention may be applied to the vane (400).

[0192] For example, a cylinder (100) of a compressor (1) according to one embodiment of the present invention may include a resonator (107) for reducing noise during the compression process of a refrigerant. The resonator (107) may be provided to communicate with a cylinder chamber (110). In this case, the vane (400) may include a communication groove (407) on one side that communicates with the inside of the resonator (107) and the cylinder (100).

[0193] A resonator (107) provided in a cylinder (100) may include a connecting groove (108) that connects a resonance groove (109) where resonance occurs and a communication groove (407) provided in a vane (400). More specifically, the resonator (107) may be formed near the slot portion (200) of the cylinder (100). On the cylinder (100), the resonance groove (109) of the resonator (107) may be positioned so as to be spaced apart from the side of the slot portion (200) by a predetermined distance. Additionally, the connecting groove (108) of the resonator (107) may be provided so that the slot (201) and the resonance groove (109) are in communication. The connecting groove (108) of the resonator (107) can be connected to a communication groove (407) provided on one side of the vane (400), and the communication groove (407) of the vane (400) can be connected to a cylinder chamber (110). That is, the resonance groove (109) of the resonator (107) can be provided to communicate with the cylinder chamber (110) by passing through the communication groove (407) of the vane (400).

[0194] The communication groove (407) of the vane (400) can be arranged to extend from the front surface (403) of the vane (400) to the connection groove (108) of the resonator (107). Accordingly, even if the vane (400) moves back and forth between the top dead center and the bottom dead center, the resonance groove (109) of the resonator (107) can be arranged to always remain in communication with the cylinder chamber (110). That is, the noise reduction effect of the resonator (107) can be maintained while the vane (400) moves back and forth.

[0195] If the vane (400) is incorrectly assembled, the communication groove (407) of the vane (400) may be disconnected from the connection groove (108) of the resonator (107). Accordingly, the connection groove (108) of the resonator (107) may be connected to the side of the vane (400). That is, the resonance groove (109) of the resonator (107) may not be in communication with the cylinder chamber (110). Since the resonator (107) is not in communication with the cylinder chamber (110), if the vane (400) is incorrectly assembled, the noise inside the cylinder (100) may not be reduced.

[0196] Therefore, even when a communication groove (407) is provided on one side of the vane (400) to connect the resonator (107) and the cylinder chamber (110), the compressor (1) according to one embodiment of the present invention can prevent the problem of the resonator (107) of the cylinder (100) not being connected to the cylinder chamber (110) by providing a structure to prevent misassembly on the vane (400) and the cylinder (100). In other words, by providing a locking projection (311) and a locking part (222) on the rear side of the vane (400) and the slot part (200), respectively, the problem of the resonator (107) not operating due to misassembly of the vane (400) can be prevented in advance. Furthermore, by preventing the problem of the resonator (107) not operating in advance, the defect rate in the process can be reduced and the process can be stabilized.

[0197] FIG. 20 is a perspective view of a vane according to one embodiment.

[0198] Referring to FIG. 20, in a compressor (1) according to one embodiment of the present invention, the coupling projection (530) of the vane (500) may be arranged to be offset to one side with respect to the radial centerline (not shown) of the vane (500). In other words, the coupling projection (530) provided on the rear side of the vane (500) may be positioned closer to one of the locking projection (311) of the first vane part (310) and the second vane part projection (321) of the second vane part (320). That is, the distance between the coupling projection (530) and the locking projection (311) may be arranged to be different from the distance between the coupling projection (530) and the second vane part projection (321).

[0199] For example, as the connecting projection (530) of the vane (500) is positioned offset to one side relative to the centerline of the vane (500), the elastic member (E) attached to the rear surface of the vane (500) can also be positioned offset to one side corresponding to the connecting projection (530).

[0200] Therefore, if the vane (500) is incorrectly assembled, the central axis of the connecting projection (530) and the central axis of the elastic member (E) may not coincide. In other words, if the vane (500) is incorrectly assembled in the slot (201), the central axes of the connecting projection (530) and the elastic member (E) may be arranged so that they are not aligned. Accordingly, when the vane (500) moves back and forth, the rear side of the vane (500) may receive a force in a direction perpendicular to the direction of movement by the elastic member (E). Accordingly, noise may be generated during the operation of the vane (500).

[0201] Therefore, even if the connecting projection (530) of the vane (500) is not located on the radial centerline of the vane (500) but is positioned to be offset to one side relative to the centerline of the vane (500), the compressor (1) according to one embodiment of the present invention can prevent the problem of noise being generated during the forward and backward movement of the vane (500) by providing a structure to prevent misassembly on the vane (500) and the cylinder (100). In other words, by providing a locking projection (311) and a locking part (222) on the rear side of the vane (500) and the slot part (200), respectively, the problem of noise being generated due to misassembly of the vane (500) can be prevented in advance. Furthermore, by preventing the problem of noise generation in advance, the defect rate in the process can be reduced and the process can be stabilized.

[0202] A compressor (1) according to one embodiment comprises a cylinder (100) including a cylinder chamber (110) in which a refrigerant is compressed, a first slot (211), and a second slot (221); a roller (130) that pivots inside the cylinder (100) by contacting a cam (60) of a shaft (50) that rotates around an axis; and a vane (300) that divides the cylinder chamber (110) into an inlet chamber (111) and a compression chamber (112) and contacts the roller (130), wherein the vane (300) comprises a first vane portion (310) provided to be received in the first slot (211) and a second vane portion (320) provided to be received in the second slot (221), and the first vane portion (310) is in the radial direction of the shaft (50) such that the first vane portion (310) is restricted from being received in the second slot (221). The cylinder (100) includes a locking projection (311) protruding outwardly, and the cylinder (100) includes a locking portion (222) provided on the inner side of the second slot (221) so that the first vane portion (310) is caught when the first vane portion (310) is received in the second slot (221).

[0203] The vane (300) is assembled to be inserted into the slot (201) along the axial direction, and when the first vane portion (310) is assembled to be received in the second slot (221), the bottom surface of the locking projection (311) may be arranged to contact and lock with the locking portion (222).

[0204] The radial length of the first vane portion (310) is provided to be longer than the radial length of the second vane portion (320), and the length of the second slot (221) recessed radially from the inner surface of the cylinder (100) can be provided to be shorter than the length of the first slot (211) recessed radially from the inner surface of the cylinder (100).

[0205] The first vane portion (310) is positioned to be received in the first slot (211), and the vane (300) can be received in the slot (201) spaced apart from the inner surface of the slot.

[0206] The inner surface of the slot (201a) formed in the cylinder (100) includes an inclined surface (213a, 223a) inclined in the direction of the indentation of the slot (201a), and the end (313a, 323a) of the vane (300a) adjacent to the inner surface of the slot (201a) may be provided to have an inclination corresponding to the inclined surface (213a, 223a).

[0207] The cylinder (100) includes through holes (101a, 102a) that penetrate the cylinder (100) in a diagonal direction, and the through holes (101a, 102a) may be arranged to be connected to the first slot (211a) and the second slot (221a), respectively.

[0208] The distance between the first vane portion (310) and the inner surface of the first slot can be provided to be the same as the distance between the second vane portion (320) and the inner surface of the second slot.

[0209] The front surface (303) of the vane (300), which includes a contact line (302) of the vane (300) formed in contact with the roller (130), is folded on both sides from the contact line (302) to form a compression chamber surface (305) that forms one side of the compression chamber (112) and an inflow chamber surface (304) that forms one side of the inflow chamber (111), and may be configured such that the area of ​​the compression chamber surface (305) is smaller than the area of ​​the inflow chamber surface (304).

[0210] The vane (300) may have a cross-sectional surface (303) of the vane (300) arranged in an asymmetrical shape based on the center plane (301) of the vane (300), which is arranged so that the vane (300) is divided along directions perpendicular to the axial direction and the radial direction, respectively.

[0211] The cylinder (100) includes a resonance groove (109) that resonates with sound generated in the cylinder chamber (110), and the vane (300;400) may include a communication groove (407) provided along the radial direction on one side and configured to communicate with the resonance groove (109).

[0212] The above communication groove (407) can be provided to communicate with the resonance groove (109) according to the movement of the vane (300;400).

[0213] The above vane (300;500) further includes a spring that supports the vane so as to be able to move back and forth, and the vane (300;500) includes a coupling projection (530) that is received by the spring and coupled with the spring, and the center of the coupling projection (530) may be positioned axially eccentric with respect to the center of the vane (300;500).

[0214] The above vane (300) further includes a spring that supports the vane (300) so as to be able to move back and forth, the vane (300) includes a concave groove portion in which the spring is received, the second vane portion (320) includes a second vane portion projection (321) formed to protrude along the direction in which the vane (300) is received in the slot (201), and the second vane portion projection (321) may be arranged to be spaced apart from the locking portion (222) of the second slot portion (220).

[0215] The protrusion length of the second vane projection (321) from the inner surface of the concave groove may be provided in a range of 0.3 to 0.8 times the protrusion length of the catch projection (311) from the inner surface of the concave groove.

[0216] The cylinder (100) has a through hole (101) formed on the inner side of the first slot (211) that penetrates the cylinder (100) in the axial direction, and the second slot (221) can be provided with a cross-sectional shape perpendicular to the axial direction of the shaft (50) of the second vane part (320).

[0217] A compressor (1) according to one embodiment of the present invention comprises a cylinder (100) including a cylinder chamber (110) in which a refrigerant is compressed and a roller (130) that rotates in contact with a shaft (50) that rotates around an axis, and a vane (300) that is provided to move back and forth inside the cylinder (100) and includes a first vane portion (310) and a second vane portion (320) separated along the axial direction, wherein the first vane portion (310) includes a locking projection (311) formed to protrude outwardly from the cylinder (100), and the second vane portion (320) includes a second vane portion projection (321) formed to protrude outwardly from the cylinder (100), and a spring that supports the vane (300) to move back and forth, wherein the vane (300) is in contact with the roller (130) on one side and the cylinder The chamber (110) is divided into an inlet chamber (111) and a compression chamber (112), and includes a concave groove portion that accommodates the spring provided between the locking projection (311) and the second vane projection (321) on the other side, wherein the protrusion length of the locking projection (311) from the inner surface of the concave groove portion is provided to be longer than the protrusion length of the second vane projection (321) from the inner surface of the concave groove portion, and the cylinder (100) includes a first slot (211) that accommodates the first vane portion (310) and a second slot (221) that accommodates the second vane portion (320), wherein the recessed length of the first slot (211) on the inner surface of the cylinder (100) is provided to be shorter than the recessed length of the second slot (221) on the inner surface of the cylinder (100).

[0218] The first vane portion (310) is positioned to be received in the first slot (211), and the distance between the first vane portion (310) and the inner side of the first slot (211) can be provided to be the same as the distance between the second vane portion (320) and the inner side of the second slot (221).

[0219] The cylinder (100) may have a through hole (101) formed on the inner side of the first slot (211) that penetrates the cylinder (100) in the axial direction, and the second slot (221) may be provided in a shape corresponding to a cross-section perpendicular to the axial direction of the second vane portion (320).

[0220] The front surface (303) of the vane (300), which includes the contact line (302) of the roller (130) formed in contact with the vane (300), is bent to both sides at the contact line (302) to form a compression chamber surface (305) that forms one side of the compression chamber (112) and an inflow chamber surface (304) that forms one side of the inflow chamber (111), and may be configured such that the area of ​​the compression chamber surface (305) is smaller than the area of ​​the inflow chamber surface (304).

[0221] The vane (300) may have a cross-sectional surface (303) of the vane (300) arranged in an asymmetrical shape based on the center plane (301) of the vane (300), which is arranged so that the vane (300) is divided along directions perpendicular to the axial direction and the radial direction, respectively.

[0222] According to the concept of the present invention, by providing a structure to prevent misassembly in the vane of a compressor, problems that may occur due to misassembly of the vane can be prevented in advance.

[0223] According to the concept of the present invention, the vane of the compressor is provided with a shear section having an asymmetric shape, thereby reducing the pressure acting on the vane shear section and reducing chattering noise.

[0224] According to the concept of the present invention, the vanes and cylinders of the compressor include a resonance structure connected to each other, so that noise can be reduced during compressor operation.

[0225] Effects according to one aspect of the disclosure are not limited to the effects mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art to which the present disclosure pertains from the description below.

[0226] Specific embodiments have been illustrated and described above. However, the invention is not limited to the embodiments described above, and those skilled in the art may make various modifications without departing from the essence of the technical concept of the invention as described in the following claims.

Claims

1. A cylinder comprising a cylinder chamber in which a refrigerant is compressed, and a first slot and a second slot; A roller that pivots inside the cylinder by contacting a cam of a shaft rotating around an axis; and The cylinder chamber is partitioned into an inlet chamber and a compression chamber, and the vane in contact with the roller comprises a first vane portion arranged to be received in the first slot and a second vane portion arranged to be received in the second slot; The first vane portion includes a locking projection protruding radially outward from the shaft to restrict the first vane portion from being received in the second slot, and The above cylinder is a compressor comprising a catch portion provided on the inner side of the second slot so that the first vane portion is caught when the first vane portion is received in the second slot.

2. In Paragraph 1, The above vane is assembled to be inserted into the slot along the axial direction, and A compressor configured such that when the first vane portion is assembled to be received in the second slot, the bottom surface of the locking projection contacts and locks with the locking portion.

3. In Paragraph 2, The radial length of the first vane is provided to be longer than the radial length of the second vane, and A compressor configured such that the length of the second slot recessed radially from the inner surface of the cylinder is shorter than the length of the first slot recessed radially from the inner surface of the cylinder.

4. In Paragraph 1, A compressor in which the first vane portion is positioned to be received in the first slot, and the vane is received in the slot such that it is spaced apart from the inner surface of the slot.

5. In Paragraph 3, The inner surface of the slot formed in the cylinder includes an inclined surface inclined in the direction of the recess of the slot. A compressor in which the end of the vane adjacent to the inner surface of the slot is provided to have an inclination corresponding to the inclined surface.

6. In Paragraph 5, The above cylinder includes a through hole penetrating the cylinder in a diagonal direction, and A compressor in which the above-mentioned through hole is provided to be connected to the first slot and the second slot, respectively.

7. In Paragraph 4, A compressor in which the distance between the first vane and the inner surface of the first slot is the same as the distance between the second vane and the inner surface of the second slot.

8. In Paragraph 4, The front surface of the vane, including the contact line of the vane formed in contact with the roller, is bent to both sides at the contact line to form a compression chamber surface that forms one side of the compression chamber and an inflow chamber surface that forms one side of the inflow chamber. A compressor configured such that the area of ​​the compression chamber surface is smaller than the area of ​​the inlet chamber surface.

9. In Paragraph 8, A compressor in which the shear plane of the vane is provided in an asymmetric shape with respect to the center plane of the vane, which is provided such that the vane is bisected along directions perpendicular to the axial and radial directions, respectively.

10. In Paragraph 4, The above cylinder includes a resonance groove that resonates with the sound generated in the cylinder chamber, and A compressor comprising a vane that is provided along the radial direction on one side and a communication groove that is provided to communicate with the resonance groove.

11. In Paragraph 10, A compressor in which the above communication groove is provided to communicate with the above resonance groove according to the advance and retreat of the above vane.

12. In Paragraph 4, A spring that supports the above vane so as to be able to move back and forth; further comprising, The above vane includes a coupling projection that is received by the spring and coupled with the spring, and A compressor in which the center of the above-mentioned coupling projection is axially eccentric with respect to the center of the above-mentioned vane.

13. In Paragraph 4, A spring that supports the above vane so as to be able to move back and forth; further comprising, The above vane includes a concave groove in which the spring is received, and The second vane portion includes a second vane portion projection formed by protruding along the direction in which the vane is received in the slot, and A compressor in which the second vane projection is spaced apart from a locking portion provided on the inner side of the second slot.

14. In Paragraph 13, A compressor in which the protrusion length of the second vane projection from the inner surface of the concave groove is provided in the range of 0.3 to 0.8 times the protrusion length of the catch projection from the inner surface of the concave groove.

15. In Paragraph 3, A compressor in which a through hole is formed in the inner side of the first slot and penetrates the cylinder in the axial direction, and the second slot is provided with a cross-sectional shape perpendicular to the axial direction of the shaft of the second vane portion.

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