Compressor

Abstract

This compressor comprises: a housing; a cylinder which is disposed inside the housing and comprises a cylinder chamber on an inner side thereof; a roller which is provided to be rotatable in the cylinder chamber and has a vane groove formed in the outer surface and an oil guide extending between the vane groove and the inner surface so as to guide oil in the vane groove; and a vane which is inserted into the vane groove so as to be movable, and partitions, along with the roller, the cylinder chamber into an inlet chamber and a compression chamber.

Description

compressor

[0001] The present disclosure relates to a compressor.

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

[0003] There are various types of compressors, including reciprocating compressors, scroll compressors, and rotary compressors. A reciprocating compressor compresses the working gas by forming a compression space between the piston and the cylinder, where the working gas is sucked in and discharged, and the piston moves back and forth in a straight line inside the cylinder. A scroll compressor compresses the working gas by forming a compression space between an orbiting scroll and a fixed scroll, where the working gas is sucked in and discharged, and the orbiting scroll rotates along the fixed scroll. A rotary compressor compresses the working gas by forming a compression space between an eccentrically rotating rolling piston and the cylinder, where the working gas is sucked in and discharged, and the rolling piston rotates eccentrically along the inner wall of the cylinder.

[0004] The compressor includes a compression unit where refrigerant compression is performed and a drive unit that provides power for refrigerant compression. The compression unit may be equipped with a muffler to reduce noise generated when compressed refrigerant is discharged.

[0005] One aspect of the present disclosure provides a compressor having an improved structure.

[0006] One aspect of the present disclosure provides a compressor having increased volumetric efficiency.

[0007] One aspect of the present disclosure provides a compressor having an extended lifespan.

[0008] One aspect of the present disclosure provides a compressor capable of preventing damage to a vane.

[0009] One aspect of the present disclosure provides a compressor including an oil guide configured to guide oil within a vane groove.

[0010] The technical problems to be achieved in this document are not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by a person having ordinary skill in the technical field to which the present invention belongs from the description below.

[0011] According to one embodiment of the present disclosure, a compressor may include: a housing; a cylinder disposed inside the housing and including a cylinder chamber inside; a roller rotatably provided in the cylinder chamber, the roller including a vane groove formed on an outer surface of the roller, and an oil guide extending between the vane groove and an inner surface of the roller to guide oil in the vane groove; a vane inserted into the vane groove and provided to be movable, and provided together with the roller to divide the cylinder chamber into an inlet chamber into which refrigerant is introduced and a compression chamber into which refrigerant is compressed.

[0012] According to one embodiment of the present disclosure, a compressor comprises: an upper cylinder including an upper cylinder chamber; an upper roller rotatably provided in the upper cylinder chamber, including an upper vane slot formed on an outer surface, and an upper oil guide extending between the upper vane slot and an inner surface to guide oil in the upper vane slot, the upper roller being provided to compress refrigerant introduced into the upper cylinder chamber as it rotates; an upper vane provided to partition the upper cylinder chamber, the upper vane being provided to partition the upper cylinder chamber into an inlet chamber and a compression chamber together with the upper roller, the upper vane being movable in conjunction with the rotation of the upper roller; a lower cylinder disposed below the upper cylinder and including a lower cylinder chamber; It may include a lower roller that is rotatable in the lower cylinder chamber, has a lower vane slot formed on an outer surface, and a lower oil guide that extends between the lower vane slot and the inner surface and guides oil in the lower vane slot, and is configured to compress refrigerant introduced into the lower cylinder chamber as it rotates; a lower vane that is configured to partition the lower cylinder chamber and partitions the lower cylinder chamber into an inlet chamber and a compression chamber together with the lower roller, and is movable in conjunction with the rotation of the lower roller; and a rotating shaft that is configured to transmit rotational force to the upper roller and the lower roller.

[0013] According to one embodiment of the present disclosure, a compressor may include a housing; a cylinder disposed inside the housing and including a cylinder chamber; a roller rotatably provided in the cylinder chamber and provided to compress refrigerant flowing into the cylinder chamber as it rotates; a rotary shaft provided to provide a rotary force to the roller and provided to penetrate the roller; and a vane including a first end fixed to the cylinder and a second end configured to be movable by the rotation of the roller. The roller may include a vane groove formed on an outer surface thereof, and an oil guide guiding oil to flow toward the rotary shaft along a gap between the vane groove and an opening of an oil guide formed on an inner surface of the roller.

[0014] FIG. 1 schematically illustrates an example of an air conditioner including a compressor according to one embodiment of the present disclosure.

[0015] FIG. 2 is a cross-sectional view of a compressor and an accumulator according to one embodiment of the present disclosure.

[0016] FIG. 3 illustrates a partial configuration of a compressor according to one embodiment of the present disclosure.

[0017] Figure 4 illustrates a part of the compressor illustrated in Figure 3 in a different direction from the direction illustrated in Figure 3.

[0018] Figure 5 is an exploded view showing a part of the compressor illustrated in Figure 3.

[0019] Figure 6 is an exploded view of a portion of the compressor illustrated in Figure 3, taken in a different direction from that illustrated in Figure 5.

[0020] Figure 7 is a cross-sectional view taken along line A-A' shown in Figure 3.

[0021] Figure 8 is a cross-sectional view taken along line B-B' shown in Figure 3.

[0022] FIG. 9 illustrates a rotating shaft, a cam, a cylinder, a roller, and a vane according to one embodiment of the present disclosure.

[0023] FIG. 10 is an exploded view of a rotating shaft, cam, cylinder, roller and vane according to one embodiment of the present disclosure.

[0024] Figure 11 illustrates the rotating shaft, cam, cylinder, roller and vane illustrated in Figure 10 in a different direction from that illustrated in Figure 10.

[0025] Figure 12 is an enlarged view of part D shown in Figure 9.

[0026] Figure 13 illustrates part D shown in Figure 9 in a different direction from the direction illustrated in Figure 12.

[0027] Figure 14 illustrates part D shown in Figure 9 in a different direction from the direction illustrated in Figures 12 and 13.

[0028] FIG. 15 is a plan view of a rotating shaft, cam, cylinder, roller, and vane according to one embodiment of the present disclosure.

[0029] Figure 16 is an enlarged view of part E shown in Figure 15.

[0030] Fig. 17 is a cross-sectional view taken along the line C-C' shown in Fig. 3.

[0031] Figure 18 is an enlarged view of part F shown in Figure 17.

[0032] Figure 19 is an enlarged view of part G shown in Figure 17.

[0033] It should be understood that the various embodiments and terms used in this document are not intended to limit the technical features described in this document to specific embodiments, but rather to include various modifications, equivalents, or substitutes of the embodiments.

[0034] In connection with the description of the drawings, similar reference numerals may be used for similar or related components.

[0035] The singular form of a noun corresponding to an item may include one or more of said items, unless the relevant context clearly indicates otherwise.

[0036] In this document, each of the phrases "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 that phrase, or all possible combinations thereof.

[0037] The term "and / or" includes any combination of a plurality of related described elements or any one of a plurality of related described elements.

[0038] The terms "part," "module," and "member" may be implemented in hardware or software. Depending on the embodiments, multiple "parts," "modules," or "members" may be implemented as a single component, or a single "part," "module," or "member" may include multiple components.

[0039] Terms such as "first," "second," or "first" or "second" may be used simply to distinguish one component from another and do not qualify the components in any other respect (e.g., importance or order).

[0040] When a component (e.g., a first component) is referred to as being "coupled" or "connected" to another component (e.g., a second component), with or without the terms "functionally" or "communicatively," it means that the component can be connected to the other component directly (e.g., wired), wirelessly, or through a third component.

[0041] The terms "include" or "have" are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in this document, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

[0042] When a component is said to be “connected,” “coupled,” “supported,” or “in contact with” another component, this includes not only cases where the components are directly connected, coupled, supported, or in contact, but also cases where the components are indirectly connected, coupled, supported, or in contact through a third component.

[0043] When we say that a component is "on" another component, this includes not only cases where the component is in contact with the other component, but also cases where there is another component between the two components.

[0044] Meanwhile, the terms “upper”, “lower”, “vertical direction”, etc. used in the description below are defined based on the drawing, and the shape and position of each component are not limited by these terms.

[0045] Among the expressions used in the description below, “upper ~”, “lower ~”, etc. can be used to distinguish components by considering the relative positions between the components, and these expressions can be replaced with expressions such as “first ~”, “second ~”.

[0046] Hereinafter, embodiments according to the present invention will be described in detail with reference to the attached drawings.

[0047] FIG. 1 schematically illustrates an example of an air conditioner including a compressor according to one embodiment of the present disclosure.

[0048] Referring to FIG. 1, a compressor (11) according to one embodiment of the present disclosure may be included in an air conditioner (1).

[0049] An air conditioner (1) can absorb heat from indoors and release heat to the outdoors for cooling the space to be air-conditioned, i.e., the room. In addition, the air conditioner (1) can absorb heat from outdoors and release heat to the indoors for heating the room. The air conditioner (1) can include an outdoor unit (10) configured to exchange heat with outdoor air and an indoor unit (20) configured to exchange heat with indoor air. For example, the outdoor unit (10) can be installed in an outdoor space and exchange heat with outdoor air, and the indoor unit (20) can be installed in an indoor space and exchange heat with indoor air.

[0050] An air conditioner (1) according to one embodiment may be a separate air conditioner in which the outdoor unit (10) and the indoor unit (20) are installed separately from each other. Alternatively, the air conditioner (1) according to one embodiment may be an integrated air conditioner in which the outdoor unit (10) and the indoor unit (20) are installed together in one cabinet.

[0051] The outdoor unit (10) can perform heat exchange between the refrigerant and outdoor air by utilizing the phase change of the refrigerant (e.g., evaporation or condensation). For example, the outdoor unit (10) can release heat from the refrigerant to the outdoor air by utilizing condensation of the refrigerant. Additionally, the outdoor unit (10) can absorb heat from the outdoor air into the refrigerant by utilizing evaporation of the refrigerant.

[0052] The outdoor unit (10) may include a compressor (11) configured to compress a refrigerant. The outdoor unit (10) may include an outdoor heat exchanger (12) configured to exchange heat between outdoor air and the refrigerant.

[0053] The indoor unit (20) can perform heat exchange between the refrigerant and indoor air by utilizing the phase change (e.g., evaporation or condensation) of the refrigerant. For example, the indoor unit (20) can cool an indoor space by absorbing heat from the indoor air into the refrigerant through evaporation. Furthermore, the indoor unit (20) can heat an indoor space by releasing heat from the refrigerant into the indoor air through condensation of the refrigerant.

[0054] The indoor unit (20) may include an indoor heat exchanger (22) configured to exchange heat between indoor air and a refrigerant.

[0055] As illustrated in Fig. 1, the air conditioner (1) may include a refrigerant circulation circuit for transferring heat between the outdoor unit (10) and the indoor unit (20) using a refrigerant.

[0056] The refrigerant circulation circuit may include a compressor (11), an outdoor heat exchanger (12), an expansion device (13), and an indoor heat exchanger (22). The refrigerant may circulate in the order of the compressor (11), the outdoor heat exchanger (12), the expansion device (13), and the indoor heat exchanger (22), or in the order of the compressor (11), the indoor heat exchanger (22), the expansion device (13), and the outdoor heat exchanger (12).

[0057] The compressor (11) can compress refrigerant. Low-temperature, low-pressure refrigerant can be introduced into the compressor (11). The compressor (11) can compress the low-temperature, low-pressure refrigerant to create a high-temperature, high-pressure refrigerant. The compressor (11) can discharge the high-temperature, high-pressure refrigerant.

[0058] The outdoor heat exchanger (12) can exchange heat between the refrigerant and the outdoor air. For example, during cooling operation, the outdoor heat exchanger (12) condenses high-temperature, high-pressure refrigerant, and while the refrigerant is condensing, the refrigerant can release heat to the indoor air. During cooling operation, the outdoor heat exchanger (12) can discharge refrigerant liquid. Additionally, during heating operation, the outdoor heat exchanger (12) evaporates low-temperature, high-pressure refrigerant, and while the refrigerant is evaporating, the refrigerant can absorb heat from the indoor air. During heating operation, the outdoor heat exchanger (12) can discharge refrigerant gas.

[0059] An outdoor fan (16) may be provided near the outdoor heat exchanger (12). The outdoor fan (16) may blow outdoor air to the outdoor heat exchanger (12) to promote heat exchange between the refrigerant and the outdoor air.

[0060] The expansion device (13) can expand the refrigerant. For example, the expansion device (13) can expand high-temperature, high-pressure refrigerant liquid by utilizing the throttling effect. The expansion device (13) can discharge low-temperature, low-pressure refrigerant liquid. The expansion device (13) can include an orifice that can reduce the cross-sectional area of ​​the flow path.

[0061] The expansion device (13) can be connected to the indoor unit (20). The number of expansion devices (13) can be provided corresponding to the number of indoor units (20).

[0062] In the indoor heat exchanger (22), heat exchange can occur between the refrigerant and indoor air. For example, during cooling operation, low-pressure, low-temperature refrigerant evaporates in the indoor heat exchanger (22), and while the refrigerant evaporates, the refrigerant can absorb heat from the indoor air. During cooling operation, the indoor heat exchanger (22) can discharge refrigerant gas. In addition, during heating operation, high-temperature, high-pressure refrigerant condenses in the indoor heat exchanger (22), and while the refrigerant condenses, the refrigerant can release heat to the indoor air. During heating operation, the indoor heat exchanger (22) can discharge refrigerant liquid.

[0063] Depending on the embodiment, a separate expansion device (not shown) or capillary tube (not shown) may be provided on the inlet side of the indoor heat exchanger (22). The separate expansion valve or capillary tube can expand the refrigerant liquid and provide the low-temperature, low-pressure refrigerant liquid to the indoor heat exchanger (22).

[0064] An indoor fan (26) may be provided near the indoor heat exchanger (22). The indoor fan (26) may blow indoor air to the indoor heat exchanger (22) to promote heat exchange between the refrigerant and the outdoor air.

[0065] Additionally, the refrigerant circulation circuit may further include a flow diverter valve (14). For example, the flow diverter valve (14) may include a 4-way valve. The flow diverter valve (14) may be connected to the refrigerant outlet of the compressor (11).

[0066] The flow switching valve (14) can switch the circulation path of the refrigerant depending on the operating mode (e.g., cooling operation or heating operation) of the air conditioner (1). For example, during the cooling operation of the air conditioner (1), the flow switching valve (14) can guide the refrigerant discharged from the compressor (11) to the outdoor heat exchanger (12), whereby the refrigerant can circulate in the order of the compressor (11), the outdoor heat exchanger (12), the expansion device (13), and the indoor heat exchanger (22). In addition, during the heating operation of the air conditioner (1), the flow switching valve (14) can guide the refrigerant discharged from the compressor (11) to the indoor heat exchanger (22), whereby the refrigerant can circulate in the order of the compressor (11), the indoor heat exchanger (22), the expansion device (13), and the outdoor heat exchanger (12).

[0067] Additionally, the refrigerant circulation circuit may further include an accumulator (15). The accumulator (15) may be connected to the refrigerant inlet of the compressor (11).

[0068] The accumulator (15) may receive low-temperature, low-pressure refrigerant evaporated in the indoor heat exchanger (22) or the outdoor heat exchanger (12). For example, during cooling operation, the accumulator (15) may receive low-temperature, low-pressure refrigerant evaporated in the indoor heat exchanger (22). During heating operation, the accumulator (15) may receive low-temperature, low-pressure refrigerant evaporated in the outdoor heat exchanger (12).

[0069] Depending on the load, the refrigerant may be incompletely evaporated in the indoor heat exchanger (22) or the outdoor heat exchanger (12), and a refrigerant mixed with refrigerant liquid and refrigerant gas may flow into the accumulator (15). When a refrigerant mixed with refrigerant liquid and refrigerant gas flows into the accumulator (15), the accumulator separates the refrigerant liquid from the refrigerant gas, and provides the refrigerant gas from which the refrigerant liquid has been separated to the compressor (11).

[0070] For example, a compressor (11), an outdoor heat exchanger (12), an outdoor fan (16), an expansion device (13), a flow switching valve (14), and an accumulator (15) may be placed in an outdoor unit (10). An indoor heat exchanger (22) and an indoor fan (26) may be placed in an indoor unit (20). However, the location of the expansion device (13) is not limited to the outdoor unit (10), and in various embodiments, the expansion device (13) may be placed in the indoor unit (20).

[0071] Although FIG. 1 illustrates an example in which one outdoor unit (10) and one indoor unit (20) are connected to each other, the present disclosure is not limited thereto, and one outdoor unit (10) and two or more indoor units (20) may be connected, or two or more outdoor units (10) and one indoor unit (20) may be connected, or two or more outdoor units (10) and two or more indoor units (20) may be connected.

[0072] The air conditioner (1) according to one embodiment described above with reference to FIG. 1 is only an example of a device to which a compressor according to the concept of the present disclosure can be applied, and the concept of the present disclosure is not limited thereto.

[0073] FIG. 2 is a cross-sectional view of a compressor and an accumulator according to one embodiment of the present disclosure.

[0074] Referring to FIG. 2, a compressor (11) according to one embodiment of the present disclosure may include a compression unit (including components such as a cylinder (100), a roller (200), etc.) configured to compress a refrigerant. The compressor (11) according to one embodiment of the present disclosure may include a drive motor (40) provided to provide power to the compression unit. The compressor (11) according to one embodiment of the present disclosure may include a housing (30) that accommodates the compression unit and the drive motor (40).

[0075] The housing (30) can form the exterior of the compressor (11). The housing (30) can be provided to accommodate the components of the compressor (11). An accommodation space (S) for accommodating a compression unit and a driving motor (40) can be formed inside the housing (30).

[0076] The housing (30) may be provided to accommodate oil (O). The housing (30) may be provided to store oil (O). The oil (O) may reduce friction between various components of the compressor (11) and lubricate various components of the compressor (11).

[0077] A compressor inlet pipe (PI) may be connected to the inlet side of the housing (30). The housing (30) may be connected to an accumulator (15) by the compressor inlet pipe (PI). The compressor inlet pipe (PI) may be provided to guide refrigerant flowing from the accumulator (15) into the housing (30). The compressor inlet pipe (PI) is connected to a cylinder (100), and the refrigerant guided by the compressor inlet pipe (PI) may flow into a cylinder chamber (110) inside the cylinder (100).

[0078] For example, when the compressor (11) 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).

[0079] A compressor discharge pipe (PO) may be connected to the discharge side of the housing (30). The compressor discharge pipe (PO) may discharge the compressed refrigerant within the housing (30). The discharge pipe (PI) may be provided to guide the refrigerant discharged from the inside of the housing (30) to the outside of 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 the outside of the housing (30).

[0080] For example, the housing (30) may include a base (31), a side frame (32), and a top cover (33). The base (31) may form a lower exterior of the housing (30). The side frame (32) may form a side wall of the housing (30). The top cover (33) may form an 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 coupled. At least a portion of the base (31), the side frame (32), and the top cover (33) may be formed integrally.

[0081] 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.

[0082] The drive motor (40) may include a stator (41) fixed to the housing (30) and a rotor (42) rotatable with respect 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 drawing, an inner rotor type drive motor (40) in which the rotor (42) is disposed inside the stator (41) is illustrated, 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 disposed outside the stator (41). As long as the drive motor (40) can generate power, there is no limitation on the type of the drive motor (40).

[0083] For example, the drive motor (40) may be placed above the compression section.

[0084] The compressor (11) may include a rotating shaft (50). The rotating shaft (50) may be provided to transmit power generated from a driving motor (40) to a compression unit. The rotating shaft (50) may be provided to connect the driving motor (40) and the compression unit. The rotating shaft (50) may be connected to a rotor (42). The rotating shaft (50) may be provided to be fixed to the rotor (42) and rotate together with the rotor (42). The rotating shaft (50) may be connected to a roller (200) of a compression unit, which will be described later. The rotating shaft (50) may be provided to provide rotational force to the roller (200). For example, the rotating shaft (50) may be provided to transmit rotational force to an upper roller (200a) and a lower roller (200b), which will be described later.

[0085] The rotating shaft (50) can extend along the vertical direction (V). The rotating shaft (50) can extend along the vertical direction. The rotating shaft (50) can extend along the direction of gravity. The rotating shaft (50) can extend along the height direction of the compressor (11).

[0086] The rotating shaft (50) may be provided to penetrate the components of the compression section. For example, the rotating shaft (50) may be provided to penetrate the muffler (500), the cylinder cover (400), the cylinder (100), and the roller (200), which will be described later, in a substantially vertical direction (V). For example, the rotating shaft (50) may be provided to penetrate the upper muffler (500a), the upper cylinder cover (400a), the upper cylinder (100a), the upper roller (200a), the mid plate (70), the lower cylinder (100b), the lower roller (200b), the lower cylinder cover (400b), and the lower muffler (500b) in a substantially vertical direction (V).

[0087] The compressor (11) may include a cam (60). The cam (60) may be provided on the outer surface of the rotating shaft (50). The cam (60) may be provided to transmit the rotational force of the rotating shaft (50) to the compression unit.

[0088] The compressor (11) may include at least one cylinder (100), at least one roller (200), at least one vane (300), at least one cylinder cover (400), at least one muffler (500), and at least one cam (60). In the drawing, an example is given in which each of the cylinder (100), the roller (200), the vane (300), the cylinder cover (400), the muffler (500), and the cam (60) are two. However, the drawing merely illustrates an example of the compressor (11). As an example, the compressor (11) may include one cylinder (100), one roller (200), one vane (300), one cylinder cover (400), one muffler (500), and one cam (60). For example, the compressor (11) may include three or more cylinders (100), three or more rollers (200), three or more vanes (300), three or more cylinder covers (400), three or more mufflers (500), and three or more cams (60).

[0089] Meanwhile, the expressions “upper ~” and “lower ~” may be used to distinguish between the plurality of components included in the compressor (11). A component for which the expression “upper ~” is used may be indicated by a drawing symbol a, and a component for which the expression “lower ~” is used may be indicated by a drawing symbol b. For example, when the compressor (11) includes two cylinders (100), a cylinder that is positioned relatively higher among the two cylinders may be referred to as an upper cylinder (100a), and a cylinder that is positioned relatively lower among the two cylinders may be referred to as a lower cylinder (100b). If there is no need to distinguish between the plurality of components included in the compressor (11), the expressions “upper ~” and “lower ~” may not be used. For example, a 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-described contents are applied not only to the cylinder (100), but also to the roller (200), vane (300), cylinder cover (400), muffler (500), and cam (60).

[0090] In other words, the description of the cylinder (100) can be applied to each of the upper cylinder (100a) and the lower cylinder (100b). The description of the roller (200) can be applied to each of the upper roller (200a) and the lower roller (200b). The description of the vane (300) can be applied to each of the upper vane (300a) and the lower vane (300b). The description of the cylinder cover (400) can be applied to each of the upper cylinder (400a) and the lower cylinder (400b). The description of the muffler (500) can be applied to each of the upper muffler (500a) and the lower muffler (500b). The description of the cam (60) can be applied to each of the upper cam (60a) and the lower cam (60b).

[0091] FIG. 3 illustrates a portion of a compressor according to an embodiment of the present disclosure. FIG. 4 illustrates a portion of the compressor illustrated in FIG. 3 in a different direction from that illustrated in FIG. 3. FIG. 5 illustrates an exploded portion of the compressor illustrated in FIG. 3. FIG. 6 illustrates an exploded portion of the compressor illustrated in FIG. 3 in a different direction from that illustrated in FIG. 5. FIG. 7 is a cross-sectional view taken along line A-A' illustrated in FIG. 3. FIG. 8 is a cross-sectional view taken along line B-B' illustrated in FIG. 3.

[0092] Referring to FIGS. 3 to 8, a description will be given of some configurations of a compressor (11). An example will be given of two cylinders (100), rollers (200), vanes (300), cylinder covers (400), mufflers (500), and cams (60). However, as described above, the present disclosure is not limited to the examples.

[0093] The compressor (11) may include at least one cylinder (100).

[0094] The cylinder (100) may include a cylinder chamber (110). The cylinder chamber (110) may accommodate a refrigerant. The refrigerant discharged from the accumulator (15, see FIGS. 1 and 2) may flow into the cylinder chamber (110) and be compressed in the cylinder chamber (110). The cylinder chamber (110) may be formed on the inside of the cylinder (100). For example, the cylinder (100) may have an approximately ring shape, and the cylinder chamber (110) may be formed on 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 is introduced, and a compression chamber (112) into which the introduced refrigerant is compressed.

[0095] The cylinder (100) may include an inlet (120) into which refrigerant is introduced. The inlet (120) may be connected to a compressor inlet pipe (PI, see FIG. 2). The refrigerant flowing along the compressor inlet pipe (PI) may flow into the cylinder chamber (110) through the inlet (120). The inlet (120) may be provided to communicate with the cylinder chamber (110). Specifically, the inlet (120) may be provided to communicate with the inlet chamber (111) of the cylinder chamber (110).

[0096] For example, the compressor (11) 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).

[0097] A mid plate (70) may be provided between the upper cylinder (100a) and the lower cylinder (100b).

[0098] 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 surrounded by an outer surface of the upper roller (200a), an inner surface of the upper cylinder (100a), an upper cylinder (400a), and a mid plate (70).

[0099] 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 communicated with an upper cylinder chamber (110a). The upper inlet (120a) may be communicated with an upper inlet chamber (111a).

[0100] 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 on the inside of the lower cylinder (100b). For example, the lower cylinder chamber (110b) may be defined as a space surrounded by an outer surface of the lower roller (200b), an inner surface of the lower cylinder (100b), the lower cylinder (400b), and a mid plate (70).

[0101] 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 communicated with a lower cylinder chamber (110b). The lower inlet (120b) may be communicated with a lower inlet chamber (111b).

[0102] The compressor (11) may include a mid plate (70) disposed between the upper cylinder (100a) and the lower cylinder (100b).

[0103] 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).

[0104] 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 above-described examples, and the mid plate (70) may be coupled to the upper cylinder (100a) and / or the lower cylinder (100b) through various known coupling methods.

[0105] The compressor (11) may include at least one roller (200). For example, the number of rollers (200) may correspond to the number of cylinders (100).

[0106] The roller (200) may be provided to be rotatable in the cylinder chamber (110). The roller (200) may be provided to compress refrigerant flowing into the cylinder chamber (110) as it rotates in the cylinder chamber (110). The roller (200) may receive a rotational force from the rotation shaft (50). The roller (200) may be eccentric from the central axis of the rotation shaft (50) by a cam (60) to be described later. The roller (200) may rotate around the eccentric axis.

[0107] The roller (200) may have a roughly ring shape. The outer diameter of the roller (200) may be smaller than the inner diameter of the cylinder (100). The outer surface of the roller (200) may rotate while in contact with the inner surface of the cylinder (100).

[0108] The roller (200) may include a vane groove (210) into which a portion of the vane (300) may be inserted. The vane groove (210) may be formed by being recessed from the outer surface of the roller (200). A detailed description of the vane groove (210) will be provided later.

[0109] The roller (200) may include an oil guide (220) that opens toward the inside of the roller (200) from the vane groove (210). The oil guide (220) may be opened toward the rotating shaft (50). The oil guide (220) may extend from the vane groove (210) to the inside surface of the roller (200). A detailed description of the oil guide (220) will be provided below.

[0110] For example, the compressor (11) may include an upper roller (200a) and a lower roller (200b). The upper roller (200a) may be positioned above the lower roller (200b). The lower roller (200b) may be positioned below the upper roller (200a).

[0111] The upper roller (200a) may be provided to be rotatable in the upper cylinder chamber (110a). The upper roller (200a) may be provided to compress refrigerant flowing into the upper cylinder chamber (110a) as it rotates. The upper roller (200a) may be provided to rotate eccentrically by an upper cam (60a) formed on the outer surface of the rotating shaft (50).

[0112] The upper roller (200a) may include an upper vane groove (210a) into which a portion of the upper vane (300a) may be inserted. The upper vane groove (210a) may be formed by being recessed from the outer surface of the upper roller (200a).

[0113] The upper roller (200a) may include an upper oil guide (220a) that opens from the upper vane groove (210a) toward the rotating shaft (50). The upper oil guide (220a) may extend from the upper vane groove (210a) to the inner surface of the upper roller (200a).

[0114] The lower roller (200b) may be provided to be rotatable in the lower cylinder chamber (110b). The lower roller (200b) may be provided to compress the refrigerant flowing into the lower cylinder chamber (110b) as it rotates. The lower roller (200b) may be provided to rotate eccentrically by a lower cam (60b) formed on the outer surface of the rotating shaft (50).

[0115] The lower roller (200b) may include a lower vane groove (210b) into which a portion of the lower vane (300b) may be inserted. The lower vane groove (210b) may be formed by being recessed from the outer surface of the lower roller (200b0).

[0116] The lower roller (200b) may include a lower oil guide (220b) that opens from the lower vane groove (210b) toward the rotating shaft (50). The lower oil guide (220b) may extend from the lower vane groove (210b) to the inner surface of the lower roller (200b).

[0117] The compressor (11) may include a rotating shaft (50).

[0118] The rotating shaft (50) may include a shaft body (51), a suction hole (53), and a discharge hole (54).

[0119] The shaft body (51) can form an oil passage (52). The shaft body (51) can have a hollow shape so that oil can flow inside the shaft body (51). The oil passage (52) can extend along the longitudinal direction of the shaft body (51). The oil passage (52) can extend along a substantially vertical direction (V).

[0120] A suction hole (53) may be formed at the lower end of the shaft body (51). The suction hole (53) may be provided at one end of the oil passage (52). The suction hole (53) may be provided to suck oil (O) contained in the housing (30) into the oil passage (52). The suction hole (53) may be opened toward the bottom of the housing (30).

[0121] For example, the rotating 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 up oil (O) contained in the housing (30) (see FIG. 2). However, the present disclosure is not limited to the above-described example, and the rotating shaft (50) may suck up oil (O) through various known methods.

[0122] A discharge hole (54) may be provided to discharge oil flowing along the oil path (52). The discharge hole (54) may communicate the oil path (52) of the shaft body (51) with the outer surface of the shaft body (51). Oil discharged through the discharge hole (54) may flow between the compression section components of the compressor (11).

[0123] The rotating shaft (50) may include a plurality of discharge holes (54). The plurality of discharge holes (54) may be spaced apart from each other along the longitudinal direction of the oil passage (52). The plurality of discharge holes (54) may be spaced apart from each other along a substantially vertical direction (V). However, the present disclosure is not limited thereto, and the rotating shaft (50) may include one discharge hole (54) in some cases.

[0124] The compressor (11) may include at least one cam (60). For example, the number of cams (60) may correspond to the number of rollers (200). For example, the number of cams (60) may correspond to the number of cylinders (100).

[0125] The cam (60) may be formed on the outer surface of the rotating shaft (50). The cam (60) may be arranged eccentrically from the central axis of the rotating shaft (50). The cam (60) may be coupled to the inner surface of the roller (200). For example, most of the outer surface of the cam (60) may be in contact with most of the inner surface of the roller (200).

[0126] The cam (60) may be arranged to rotate the roller (200) eccentrically. As the cam (60) is arranged eccentrically with respect to the central axis of the rotary shaft (50), the roller (200) coupled to the cam (60) may also be arranged eccentrically with respect to the central axis of the rotary shaft (50). Accordingly, the cam (60) and the roller (200) may rotate eccentrically with respect to the central axis of the rotary shaft (50), and the roller (200) may compress the refrigerant within the cylinder chamber (110) as it rotates.

[0127] Meanwhile, although the cam (60) is described as a separate component from the rotating shaft (50), the cam (60) may be provided as a component of the rotating shaft (50). That is, the rotating shaft (50) may include the cam (60). In this case, the cam (60) may be understood to be formed on the outer surface of the shaft body (51).

[0128] For example, the compressor (11) 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).

[0129] The upper cam (60a) may correspond to the upper roller (200a). The upper cam (60a) may be coupled to the inner surface of the upper roller (200a) to rotate the upper roller (200a) eccentrically.

[0130] The lower cam (60b) may correspond to the lower roller (200b). The lower cam (60b) may be coupled to the inner surface of the lower roller (200b) to rotate the lower roller (200b) eccentrically.

[0131] In one embodiment, the upper cam (60a) and the lower cam (60b) may be eccentric in opposite directions with respect to the central axis of the rotary shaft (50). In addition, the upper roller (200a) and the lower roller (200b) may be eccentric in opposite directions with respect to the central axis of the rotary shaft (50). Accordingly, the phase when the refrigerant in the upper cylinder chamber (110a) is compressed by the upper roller (200a) and the phase when the refrigerant in the lower cylinder chamber (110b) is compressed by the lower roller (200b) may be opposite to each other.

[0132] The compressor (11) may include at least one vane (300). For example, the number of vanes (300) may correspond to the number of rollers (200). For example, the number of vanes (300) may correspond to the number of cylinders (100).

[0133] The vane (300) may be arranged 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 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 (200). 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 (200).

[0134] For example, the compressor (11) 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).

[0135] The upper vane (300a) may be arranged 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 (200a). 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 (200a).

[0136] The lower vane (300b) may be arranged 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 (200b). 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 (200b).

[0137] The compressor (11) may include at least one cylinder cover (400). For example, the number of cylinder covers (400) may correspond to the number of cylinders (100).

[0138] The cylinder cover (400) may be provided to cover at least a portion of the cylinder chamber (110). The cylinder cover (400) may include a cover body (410), a connecting hole (411), and a support member (420) that extends from the cover body (410) and is provided to support a shaft.

[0139] For example, the compressor (11) may include an upper cylinder cover (400a) and a lower cylinder cover (400b). The upper cylinder cover (400a) may be positioned above the lower cylinder cover (400b). The lower cylinder cover (400b) may be positioned below the upper cylinder cover (400a).

[0140] An upper cylinder cover (400a) may be placed on an upper cylinder (100a). The upper cylinder cover (400a) may be provided to cover an upper portion of an upper cylinder chamber (110a). The upper cylinder cover (400a) may include an upper cover body (410a) and an upper support member (420a). The upper cover body (410a) may be coupled to the upper cylinder (100a). The upper support member (420a) may extend upward from the upper cover body (410a). The upper support member (420a) may be provided to support a rotary shaft (50). The upper support member (420a) may be provided to surround a portion of an outer surface of the rotary shaft (50). The upper support member (420a) may function as a bearing that rotatably supports the rotary shaft (50).

[0141] The upper cylinder cover (400a) may include an upper connection hole (411a) connecting the interior of the upper cylinder chamber (110a) and the upper muffler (500a). The refrigerant compressed in the upper cylinder chamber (110a) may flow to the upper muffler (500a) through the upper connection hole (411a). For example, the upper connection hole (411a) may be formed by penetrating the upper cover body (410a).

[0142] The lower cylinder cover (400b) may be positioned below the lower cylinder (100b). The lower cylinder cover (400b) may be provided to cover the lower side of the lower cylinder chamber (110b). The lower cylinder cover (400b) may include a lower cover body (410b) and a lower support member (420b). The lower cover body (410b) may be coupled to the lower cylinder (100b). The lower support member (420b) may extend downward from the lower cover body (410b). The lower support member (420b) may be provided to support the rotation shaft (50). The lower support member (420b) may be provided to surround a portion of the outer surface of the rotation shaft (50). The lower support member (420b) can function as a bearing that rotatably supports the rotary shaft (50).

[0143] The lower cylinder cover (400b) may include a lower connection hole (411b) connecting the interior of the lower cylinder chamber (110b) and the lower muffler (500b). The refrigerant compressed in the lower cylinder chamber (110b) may flow to the lower muffler (500b) through the lower connection hole (411b). For example, the lower connection hole (411b) may be formed by penetrating the lower cover body (410b).

[0144] The compressor (11) may include at least one valve (80). For example, the number of valves (80) may correspond to the number of cylinders (100).

[0145] A valve (80) may be provided on the cylinder cover (400) to allow or block the flow of refrigerant. The valve (80) may allow the flow of refrigerant based on the pressure of the refrigerant being above a certain level, and may block the flow of refrigerant based on the pressure of the refrigerant being below a certain level.

[0146] For example, the compressor (11) may include an upper valve (80a) and a lower valve (80b). The upper valve (80a) may be positioned above the lower valve (80b). The lower valve (80b) may be positioned below the upper valve (80a).

[0147] The upper valve (80a) may be provided to open and close the upper connection hole (411a) of the upper cylinder cover (400a). The upper valve (80a) may open the upper connection hole (411a) based on the pressure of the refrigerant within the upper cylinder chamber (110a) being above a certain level. The upper valve (80a) may close the upper connection hole (411a) based on the pressure of the refrigerant within the upper cylinder chamber (110a) being below a certain level.

[0148] The lower valve (80b) may be provided to open and close the lower connection hole (411b) of the lower cylinder cover (400b). The lower valve (80b) may open the lower connection hole (411b) based on whether the pressure of the refrigerant within the lower cylinder chamber (110b) is above a certain level. The lower valve (80b) may close the lower connection hole (411b) based on whether the pressure of the refrigerant within the lower cylinder chamber (110b) is below a certain level.

[0149] The compressor (11) may include at least one muffler (500). For example, the number of mufflers (500) may correspond to the number of cylinders (100). For example, the number of mufflers (500) may correspond to the number of cylinder covers (400).

[0150] A muffler (500) may be provided to reduce noise generated when compressed refrigerant flows. The muffler (500) may be provided to receive refrigerant flowing out from the cylinder cover (400).

[0151] For example, the compressor (11) may include an upper muffler (500a) and a lower muffler (500b). The upper muffler (500a) may be positioned above the lower muffler (500b). The lower muffler (500b) may be positioned below the upper muffler (500a).

[0152] The upper muffler (500a) may be placed above the upper cylinder chamber (110a). The upper muffler (500a) may be placed above the upper cylinder (100a). The upper muffler (500a) may be placed above the upper cylinder cover (400a). The upper muffler (500a) may cover the upper cylinder cover (400a). The upper muffler (500a) may be coupled to the upper cylinder cover (400a) and / or the upper cylinder (100a).

[0153] The upper muffler (500a) can reduce noise generated when the refrigerant compressed in the upper cylinder chamber (110a) passes through the upper cylinder (400a). In general, noise may be excessively loud when the high-pressure refrigerant is discharged through a narrow hole, etc. While the upper muffler (500a) covers the upper cylinder cover (400a), an upper muffler chamber may be formed between the upper muffler (500a) and the upper cylinder cover (400a). The upper muffler chamber may be formed to have a relatively large width and volume compared to the upper cylinder chamber (110a) and the upper connection hole (411a). Accordingly, while the refrigerant compressed in the upper cylinder chamber (110a) flows into the upper muffler chamber through the upper connection hole (411a), the speed and pressure of the refrigerant may be reduced, thereby reducing noise.

[0154] The upper muffler (500a) may include a discharge port (510) for discharging refrigerant. The refrigerant within the upper muffler (500a) may flow out of the compression unit through the discharge port (510). In addition, as will be described later, the refrigerant within the lower muffler (500b) may also flow into the upper muffler (500a) and then flow out of the compression unit through the discharge port (510).

[0155] The lower muffler (500b) may be positioned below the lower cylinder chamber (110b). The lower muffler (500b) may be positioned below the lower cylinder (100b). The lower muffler (500b) may be positioned below the lower cylinder cover (400b). The lower muffler (500b) may cover the lower cylinder cover (400b). The lower muffler (500b) may be coupled to the lower cylinder cover (400b) and / or the lower cylinder (100b).

[0156] The lower muffler (500b) can reduce noise generated when the refrigerant compressed in the lower cylinder chamber (110b) passes through the lower cylinder (400b). In general, noise may be excessively loud when the high-pressure refrigerant is discharged through a narrow hole, etc. While the lower muffler (500b) covers the lower cylinder cover (400b), a lower muffler chamber may be formed between the lower muffler (500b) and the lower cylinder cover (400b). The lower muffler chamber may be formed to have a relatively large width and volume compared to the lower cylinder chamber (110b) and the lower connection hole (411b). Accordingly, while the refrigerant compressed in the lower cylinder chamber (110b) flows into the lower muffler chamber through the lower connection hole (411b), the speed and pressure of the refrigerant may be reduced, thereby reducing noise.

[0157] Next, an example of the flow of refrigerant will be described with reference to FIGS. 7 and 8. In FIGS. 7 and 8, the flow of refrigerant is indicated by dashed arrows.

[0158] The refrigerant can be introduced into the upper cylinder (100a). The refrigerant can be introduced into the upper cylinder chamber (110a) through the upper inlet (120a, see FIGS. 3, 4, and 5). As the upper roller (200a) rotates in the upper cylinder chamber (110a), the refrigerant inside the upper cylinder chamber (110a) can be compressed. When the pressure of the compressed refrigerant is above a certain level, the upper valve (80a) can open the upper connection hole (411a). The compressed refrigerant can be introduced into the upper muffler (500a) through the opened upper connection hole (411a). The refrigerant introduced into the upper muffler (500a) can be discharged through the discharge port (510, see FIGS. 3 and 5) of the upper muffler (500a).

[0159] The refrigerant can be introduced into the lower cylinder (100b). The refrigerant can be introduced into the lower cylinder chamber (110b) through the lower inlet port (120a, see FIGS. 3, 4, and 5). As the roller (200) rotates in the lower cylinder chamber (110b), the refrigerant inside the lower cylinder chamber (110b) can be compressed. When the pressure of the compressed refrigerant is above a certain level, the lower valve (80b) can open the lower connection hole (411b). The compressed refrigerant can be introduced into the lower muffler (500b) through the opened lower connection hole (411b). The refrigerant inside the lower muffler (500b) can flow into the upper muffler (500a) along the connection path (90). The connecting passage (90) can connect the upper muffler chamber and the lower muffler chamber. For example, the connecting passage (90) can be formed by overlapping a hole (402) formed in the lower cylinder cover (400b), a hole (102) formed in the lower cylinder (100b), a hole (71) formed in the mid plate (70), a hole (101) formed in the upper cylinder (100a), and a hole (401) formed in the upper cylinder cover (400a) (see FIG. 5). The refrigerant introduced into the upper muffler (500a) through the connecting passage (90) can be discharged through the discharge portion (510, see FIGS. 3 and 5) of the upper muffler (500a).

[0160] FIG. 9 illustrates a rotating shaft, a cam, a cylinder, a roller, and a vane according to one embodiment of the present disclosure. FIG. 10 illustrates an exploded view of the rotating shaft, the cam, the cylinder, the roller, and the vane according to one embodiment of the present disclosure. FIG. 11 illustrates the rotating shaft, the cam, the cylinder, the roller, and the vane illustrated in FIG. 10 in a different orientation than that illustrated in FIG. 10.

[0161] Referring to FIGS. 9 to 11, a compressor (11) according to one embodiment of the present disclosure may include a rotating shaft (50), a cam (60), a cylinder (100), a roller (200), and a vane (300).

[0162] The cylinder (100) may include a cylinder chamber (110). The cylinder chamber (110) may be partitioned into an inlet chamber (111) and a compression chamber (112) by a vane (300). For example, the inlet chamber (111) may be defined by an outer surface (201) of the roller (200), an inner surface of the cylinder (100), and one side of the vane (300) (a first vane side (330) to be described later). For example, the compression chamber (112) may be defined by an outer surface (201) of the roller (200), an inner surface of the cylinder (100), and the other side of the vane (300) (a second vane side (340) to be described later).

[0163] The cylinder (100) may include an inlet (120) configured to communicate with an inlet chamber (111) of the cylinder chamber (110). Refrigerant may flow into the inlet chamber (111) through the inlet (120).

[0164] The cylinder (100) may include a fixing member (130) provided to fix the vane (300). The fixing member (130) may have a shape corresponding to the first end (310) of the vane (300). For example, the fixing member (130) may be recessed radially outward from the inner surface of the cylinder (100).

[0165] The roller (200) may be provided to be rotatable in the cylinder chamber (100). The roller (200) may be provided to compress the refrigerant flowing into the cylinder chamber (100) as it rotates. The roller (200) may receive rotational force from the rotation shaft (50). The roller (200) may be provided to rotate eccentrically by a cam (60).

[0166] The roller (200) may include a vane groove (210). The vane groove (210) may be provided such that a portion of the vane (300) can be inserted therein. A portion of the vane (300) may be provided such that it can move within the vane groove (210). A portion of the vane (300) may be provided such that it can reciprocate within the vane groove (210). For example, a portion of the vane (300) may be provided such that it can slide within the vane groove (210).

[0167] The vane groove (210) may be provided to open toward the cylinder chamber (110). The vane groove (210) may be formed on the outer surface (201) of the roller (200). The vane groove (210) may be provided to be recessed from the outer surface (201) of the roller (200). The vane groove (210) may be formed by being cut from the outer surface (201) of the roller (200). The vane groove (210) may be formed to penetrate the upper surface (203) and the lower surface (204) of the roller (200).

[0168] The vane groove (210) may be referred to as a vane slot (210). The vane groove (210) may be referred to as a slider groove (210).

[0169] The roller (200) may include an oil guide (220). The oil guide (220) may be provided to guide oil. The oil guide (220) may be provided to drain oil. The oil guide (220) may be provided to guide oil existing between the outer surface (201) and the inner surface (202) of the roller (200). The oil guide (220) may be provided to guide oil within the vane groove (210). The oil guide (220) may be provided to discharge oil within the vane groove (210). The oil guide (220) may be provided to drain oil within the vane groove (210). The oil guide (220) may cause oil within the vane groove (210) to flow to the outside of the roller (200).

[0170] The oil guide (220) may extend between the vane groove (210) and the inner surface (202) of the roller (200). The oil guide (220) may have a shape extending from the vane groove (210) to the inner surface (202) of the roller (220). The oil guide (220) may be open toward the inner side of the roller (220).

[0171] For example, the oil guide (220) may be recessed from the upper surface (203) or the lower surface (204) of the roller (200). As an example, the roller (200) may include a top oil guide (221) that is recessed from the upper surface (203) of the roller (200) and / or a bottom oil guide (222) that is spaced downward from the top oil guide (221) and recessed from the lower surface (204) of the roller (200) (see FIGS. 10 and 11). Although not shown in the drawings, the oil guide (220) may also be formed to penetrate between the upper surface (203) of the roller (200) and the lower surface (204) of the roller (200). However, the present disclosure is not limited to the above-described example. The oil guide (220) may have various shapes so as to allow oil to flow, and the number of oil guides (220) is also not limited.

[0172] The oil guide (220) may be referred to as an oil path. The oil guide (220) may be referred to as an oil passage. The oil guide (220) may be referred to as an oil gate. The oil guide (220) may be referred to as an oil channel.

[0173] The vane (300) may be provided to divide the cylinder chamber (110) into an inlet chamber (111) into which refrigerant is introduced and a compression chamber (112) into which the refrigerant is compressed. The vane (300) may be provided to be movable within the vane groove (210) in conjunction with the rotation of the roller (200). As the roller (200) rotates, the displacement of the vane (300) within the vane groove (210) may vary.

[0174] The vane (300) may include a first end (310) that is fixed to the cylinder (100). The first end (310) may be fixed to the inner surface of the cylinder (100). The first end (310) may be fixed to the fixing portion (130) of the cylinder (100).

[0175] The vane (300) may include a second end (320) provided on the opposite side of the first end (310). The second end (320) may be provided to be positioned within the vane groove (210). The second end (320) may be provided to be movable within the vane groove (210) by the rotation of the roller (200). The second end (320) may be provided to reciprocate within the vane groove (210) by the rotation of the roller (200).

[0176] The vane (300) may include a first vane side (330). The first vane side (330) may connect the first end (310) and the second end (320). The first vane side (330) may be arranged to be exposed to the inlet chamber (111). The first vane side (330) may be arranged to face the inlet chamber (111).

[0177] The vane (300) may include a second vane side (340). The second vane side (340) may be provided on an opposite side of the first vane side (330) to connect the first end (310) and the second end (320). The second vane side (340) may be provided to be approximately parallel to the first vane side (330). The second vane side (340) may be provided to be exposed to the compression chamber (112). The second vane side (340) may be arranged to face the compression chamber (112).

[0178] The vane (300) may be referred to as a partition member (300). The vane (300) may be referred to as a moving block (300). The vane (300) may be referred to as a slider (300).

[0179] A rotating shaft (50) may be provided to provide rotational force to the roller (200). The rotating shaft (50) may be provided to pass through the roller (200). The rotating shaft (50) may be provided to pass through the cylinder (100).

[0180] The cam (60) may be formed on the outer surface of the rotating shaft (50). The center of rotation of the cam (60) may not coincide with the center of the rotating shaft (50). The central axis of the cam (60) may be radially eccentric to one side from the central axis of the rotating shaft (50).

[0181] The cam (60) may be provided on the inner side of the roller (200). The cam (60) may be inserted into the roller (200). The cam (60) may be coupled to the inner side (202) of the roller (200). The outer side of the cam (60) and the inner side (202) of the roller (200) may be provided to face each other.

[0182] The cam (60) can transmit the rotational force of the rotary shaft (50) to the roller (200). The cam (60) can be arranged to rotate together with the rotary shaft (50) and the roller (200). The cam (60) can be arranged to rotate the roller (200) eccentrically.

[0183] Fig. 12 is an enlarged view of portion D shown in Fig. 9. Fig. 13 shows portion D shown in Fig. 9 in a different direction from that shown in Fig. 12. Fig. 14 shows portion D shown in Fig. 9 in a different direction from that shown in Figs. 12 and 13. Fig. 15 is a plan view of a rotating shaft, a cam, a cylinder, a roller, and a vane according to one embodiment of the present disclosure. Fig. 16 is an enlarged view of portion E shown in Fig. 15.

[0184] The roller (200) may include a vane groove (210). The vane groove (210) may be formed on an outer surface (201) of the roller (200) such that a portion of the vane (300) is inserted therein and movable. Within the vane groove (210), a second end (232) of the vane (300), at least a portion of the first vane side (330) of the vane (300), and at least a portion of the second vane side (340) of the vane (300) may be disposed. For example, the vane groove (210) may extend approximately along a first direction (D1). For example, the first direction (D1) may be approximately the same as a moving direction of the vane (300). For example, the first direction (D1) may be approximately the same as an extending direction of the first vane side (330) of the vane (300). For example, the first direction (D1) may be approximately the same as the extension direction of the second vane side (340) of the vane (300). For example, the first direction (D1) may be a direction that is approximately different from the radial direction of the roller (200). For example, the first direction (D1) may include a direction that is inclined with respect to the radial direction of the roller (200). For example, the first direction (D1) may include a direction that approximately intersects the radial direction of the roller (200). However, the present disclosure is not limited to the examples described above, and the vane groove (210) may extend in various directions.

[0185] The roller (200) may include a first wall portion (231) arranged to face the first vein side (330). The first wall portion (231) may be formed to penetrate the upper surface (203) of the roller (200) and the lower surface (204) of the roller (200).

[0186] The roller (200) may include a second wall portion (232) arranged to face the second vane side (340). The second wall portion (232) may be spaced apart from the first wall portion (231). The second wall portion (232) may be arranged parallel to the first wall portion (231) with the vane (300) interposed therebetween. For example, the second wall portion (232) may be spaced apart from the first wall portion (231) in a second direction (D2). The second wall portion (232) may be formed to penetrate the upper surface (203) of the roller (200) and the lower surface (204) of the roller (200).

[0187] The roller (200) may include a third wall portion (233) connecting the first wall portion (231) and the second wall portion (232). The third wall portion (233) may be arranged to face the second end portion (320) of the vane (300). For example, the third wall portion (233) may include a first round portion (2331) connected to the first wall portion (231) and a second round portion (2332) connected to the second wall portion (232).

[0188] The vein home (210) may be provided to be defined by a first wall portion (231), a second wall portion (232), and a third wall portion (233). The vein home (210) may include a space surrounded by the first wall portion (231), the second wall portion (232), and the third wall portion (233).

[0189] The roller (200) may include an oil guide (220). The oil guide (220) may extend between the vane groove (210) and the inner surface (202) of the roller (200). The oil guide (220) may be in communication with the vane groove (210). The oil guide (220) may be open toward the inner side of the roller (200). The oil guide (220) may be open toward the rotary shaft (50). The oil guide (220) may be open toward the cam (60). For example, the oil guide (220) may be arranged to communicate a gap (g) formed between the inner surface (202) of the roller (200) and the cam (60) (see FIG. 18). For example, the oil guide (220) may extend along the second direction (D2).

[0190] The roller (200) may include a fourth wall portion (234). The fourth wall portion (234) may extend from the third wall portion (233). The fourth wall portion (234) may be provided to connect a portion of the third wall portion (233) and the inner surface (202) of the roller (200).

[0191] The roller (200) may include a fifth wall portion (235). The fifth wall portion (235) may be spaced apart from the fourth wall portion (234). For example, the fifth wall portion (235) may be spaced apart in a first direction (D1). The fifth wall portion (235) may be arranged to be parallel to the fourth wall portion (234). The fifth wall portion (235) may extend from the first wall portion (231). The fifth wall portion (235) may be arranged to connect a portion of the first wall portion (231) and the inner surface (202) of the roller (200).

[0192] The roller (200) may include a sixth wall portion (236). The sixth wall portion (236) may connect the fourth wall portion (234) and the fifth wall portion (235). For example, the sixth wall portion (236) may extend between the first round portion (2331) of the first wall portion (231) and the inner surface (202) of the roller (200).

[0193] The oil guide (220) may be provided to be defined by a fourth wall portion (234), a fifth wall portion (235), and a sixth wall portion (236). The oil guide (220) may include a space surrounded by the fourth wall portion (234), the fifth wall portion (235), and the sixth wall portion (236).

[0194] The vane groove (210) may extend along a first direction (D1), and the oil guide (220) may extend along a second direction (D2). The second direction (D2) may be a different direction from the first direction (D1). For example, the second direction (D2) may be a direction intersecting the first direction (D1). For example, the second direction (D2) may be approximately the same as the radial direction of the roller (200). However, the present disclosure is not limited to the above-described example, and the vane groove (210) and the oil guide (220) may be provided in various shapes depending on the type of compressor, the shape and / or arrangement of the vanes, etc.

[0195] Referring to Fig. 16, an example of refrigerant flow is described. For reference, in Fig. 16, the refrigerant flow is indicated by a dashed arrow.

[0196] Oil within the vane groove (210) may be arranged to flow along the oil guide (220). The oil within the vane groove (210) may be guided by the oil guide (220). As the vane (300) is inserted into the vane groove (210), the oil within the vane groove (210) may move toward the oil guide (220). The oil pushed by the vane (300) within the vane groove (210) may flow toward the oil guide (210). The oil pressurized by the second end (320) of the vane (300) within the vane groove (210) may flow along the oil guide (210). The oil guided by the oil guide (220) may flow toward the rotary shaft (50). The oil guided by the oil guide (220) may flow toward the cam (60). That is, the oil within the vane groove (210) can be guided by the oil guide (220) and discharged from the roller (200). The oil guide (220) can be provided to discharge the oil within the vane groove (210).

[0197] Typically, oil may be introduced between the compressor components to lubricate them. Oil may also be present within the vane grooves (210) of the rollers (200). Assuming that there is no oil guide (220), when the vane (300) is inserted into the vane groove (210), the oil pressure within the vane groove (210) may increase. This is because oil is an incompressible substance. This may cause the oil pressure to exert excessive force on the vane (300), which may damage the vane (300). For example, the wear of the first end (310) of the vane (300) may increase. In addition, assuming that there is no oil guide (220), the oil in the vane groove (210) may flow out into the cylinder chamber (110) by passing between the wall portion (e.g., the first wall portion (231), the second wall portion (232)) forming the vane groove (210) and the vane (300). When the oil in the vane groove (210) flows out into the inlet chamber (111), the refrigerant flowing into the inlet chamber (111) may be mixed with the oil in the vane groove (210). The temperature and / or pressure of the refrigerant in the inlet chamber (111) may increase as it mixes with the oil flowing out from the vane groove (210). As the refrigerant mixed with the oil is compressed in the cylinder chamber (110), the volumetric efficiency of the compressor (11) may be reduced. In addition, when the refrigerant mixed with the oil flows into the heat exchanger from the compressor (11), the heat exchange performance of the heat exchanger may also be reduced.

[0198] According to one embodiment of the present disclosure, the roller (200) may include an oil guide (220) that guides oil within the vane groove (210). The oil within the vane groove (210) may flow to the oil guide (220) as it is pressurized by the vane (300). As a result, the pressure of the oil within the vane groove (210) may not increase. The vane (300) may not be subjected to excessive force due to the pressure of the oil. Damage to the vane (300) due to the oil pressure may be reduced and / or suppressed. In addition, as the oil within the vane groove (210) flows along the oil guide (220), the oil within the vane groove (210) may be restricted from flowing out toward the inlet chamber (111). The oil within the vane groove (210) may flow along the oil guide (220) as it is pressurized by the vane (300). Oil guided by the oil guide (220) can flow toward the rotating shaft (50) and / or the cam (60). As a result, oil within the vane groove (210) can be prevented from flowing into the inlet chamber (111) as much as possible. The refrigerant within the inlet chamber (111) can be prevented from mixing with the oil within the vane groove (210) as much as possible, and the volumetric efficiency of the compressor (11) can be prevented from deteriorating. Consequently, according to the present disclosure, the lifespan of the compressor (11) can be increased, and the efficiency of the compressor (11) can also not be deteriorated.

[0199] Fig. 17 is a cross-sectional view taken along the line C-C' shown in Fig. 3. Fig. 18 is an enlarged view of part F shown in Fig. 17. Fig. 19 is an enlarged view of part G shown in Fig. 17.

[0200] For reference, Fig. 17 is a cross-sectional view taken along the plane forming the second end (320) of the vane (300). In Figs. 18 and 19, the flow of refrigerant is indicated by dashed arrows.

[0201] The roller (200) may include at least one oil guide (220). For example, the roller (200) may include a top oil guide (221) and / or a bottom oil guide (222). Each of the oil guides (220) may guide oil within the vane groove (210) to flow toward the rotating shaft (50). Each of the oil guides (220) may guide oil within the vane groove (210) to flow toward the cam (60). Oil within the vane groove (210) may flow out of the roller (200) through the oil guide (220).

[0202] Oil guided by the oil guide (220) and flowing out from the roller (200) can be arranged to lubricate the components of the compressor (11).

[0203] Referring to FIG. 18, oil passing through the oil guide (220) can flow between the roller (200) and the cam (60). The oil passing through the oil guide (220) can flow downward along the gap (g) formed between the inner surface (202) of the roller (200) and the outer surface of the cam (60). The oil can reduce friction between the roller (200) and the cam (60).

[0204] Referring to Fig. 19, oil passing through the oil guide (220) may flow between the cylinder cover (400) and the rotary shaft (50). For example, the lower cylinder cover (400b) may include a lower cover body (410b) and a lower support portion (420b) that extends from the lower cover body (410b) and surrounds the rotary shaft (50). The lower cylinder cover (400b) may include a cover groove (421) that is recessed from the inner surface of the lower support portion (420b). The cover groove (421) may be provided to guide oil passing through the oil guide (220). The cover groove (421) may be provided to guide oil flowing along the cover groove (421) downward. The cover groove (421) can allow oil to flow between the rotary shaft (50) and the support member (420). The cover groove (421) can extend approximately in a vertical direction (V). For example, the oil flowing along the cover groove (421) can pass through the lower muffler (500b) and be accommodated in the housing (30) (see FIG. 2). The oil can reduce friction between the rotary shaft (50) and the cylinder cover (400).

[0205] However, the flow of refrigerant illustrated in FIGS. 18 and 19 is merely exemplary, and the oil guided by the oil guide (220) and flowing out from the roller (200) may be arranged to lubricate various components of the compressor (11) in addition to the examples described above.

[0206] Meanwhile, referring to FIG. 18, the vane groove (210) may have a first length (L1) along the vertical direction (V), and the oil guide (220) may have a second length (L2) smaller than the first length (L1) along the vertical direction (V). In the drawing, the top oil guide (221) and the bottom oil guide (222) are illustrated as having the second length (L2), but the length of the top oil guide (221) along the vertical direction (V) and the length of the bottom oil guide (222) along the vertical direction (V) may be different. In addition, in some cases, the length of the oil guide (220) along the vertical direction (V) may be approximately the same as the length of the vane groove (210) along the vertical direction (V).

[0207] According to one embodiment of the present disclosure, a compressor may include a housing (30); a cylinder (100) disposed inside the housing (30) and including a cylinder chamber (110) inside; a roller (200) rotatably provided in the cylinder chamber (110); and a vane (300) provided to divide the cylinder chamber (110) into an inlet chamber (111) into which refrigerant is introduced and a compression chamber (112) into which the refrigerant is compressed. The roller (200) may include a vane groove (210) formed on an outer surface (201) of the roller (200) such that a portion of the vane (300) is inserted and movable. The roller (200) may include an oil guide (220) extending between the vane groove (210) and an inner surface (202) of the roller (200) so as to guide oil within the vane groove (210).

[0208] A compressor according to one embodiment of the present disclosure may further include a rotary shaft (50) provided to penetrate the roller (200) as a rotary shaft (50) for providing rotary force to the roller (200). The oil guide (220) may be opened toward the rotary shaft (50).

[0209] A compressor according to one embodiment of the present disclosure may further include a cam (60) formed on an outer surface of the rotating shaft (50) and coupled to an inner surface (202) of the roller (200) to rotate the roller (200) eccentrically. The oil guide (220) may guide oil within the vane groove (210) to flow toward the cam (60).

[0210] According to one embodiment of the present disclosure, the vane (300) may include a first end (310) fixed to the cylinder (100), and a second end (320) provided on the opposite side of the first end (310) and movable within the vane groove (210) by rotation of the roller.

[0211] According to one embodiment of the present disclosure, the oil guide (220) may be configured so that oil pressurized by the second end (320) of the vane (300) within the vane groove (210) flows along the oil guide (220).

[0212] According to one embodiment of the present disclosure, the oil guide (220) may be recessed from the upper surface (203) of the roller (200) or the lower surface (204) of the roller (200).

[0213] According to one embodiment of the present disclosure, the oil guide (220) may be a top oil guide (221) that is recessed from the upper surface (203) of the roller (200). The roller (200) may further include a bottom oil guide (222) that is spaced downward from the top oil guide (221) and recessed from the lower surface (204) of the roller (200).

[0214] According to one embodiment of the present disclosure, the vane groove (210) may extend along a first direction (D1), and the oil guide (220) may extend along a second direction (D2) intersecting the first direction.

[0215] According to one embodiment of the present disclosure, the vein groove (210) may have a first length (L1) along the vertical direction (V), and the oil guide (220) may have a second length (L2) along the vertical direction (V) that is smaller than the first length.

[0216] According to one embodiment of the present disclosure, the vane (300) may include a first vane side (330) and a second vane side (340). The first vane side (330) connects the first end (310) and the second end (320) and may be exposed to the inlet chamber (111). The second vane side (340) is provided on the opposite side of the first vane side (330), connects the first end (310) and the second end (320), and may be exposed to the compression chamber (112). The roller (200) may include a first wall portion (231) formed to penetrate the upper surface (203) of the roller (200) and the lower surface (204) of the roller (200), and provided to face the first vane side (330). The roller (200) may include a second wall portion (232) that is spaced apart from the first wall portion (231), is formed by penetrating the upper surface (203) of the roller (200) and the lower surface (204) of the roller (200), and is provided to face the second vane side (340). The roller (200) may include a third wall portion (233) that connects the first wall portion (231) and the second wall portion (232), and is provided to face the second end (320) of the vane (300). The roller (200) may include a fourth wall portion (234) that extends from the third wall portion (233). The roller (200) may include a fifth wall portion (235) that is spaced apart from the fourth wall portion (234) and extends from the first wall portion (231). The roller (200) may include a sixth wall portion (236) that connects the fourth wall portion (234) and the fifth wall portion (235).

[0217] According to one embodiment of the present disclosure, the vane groove (210) may be provided to be defined by the first wall portion (231), the second wall portion (232), and the third wall portion (233). The oil guide (220) may be provided to be defined by the fourth wall portion (234), the fifth wall portion (235), and the sixth wall portion (236).

[0218] A compressor according to one embodiment of the present disclosure may further include a cylinder cover (400) disposed below the cylinder (100) and provided to cover a lower side of the cylinder chamber (110). The cylinder cover (400) may include a support portion (420) provided to surround the rotary shaft (50); and a cover groove (421) recessed from an inner surface of the support portion (420). The cover groove (421) may be provided to guide oil passing through the oil guide (220).

[0219] According to one embodiment of the present disclosure, the cover groove (421) may be configured to guide oil flowing along the cover groove (421) downward.

[0220] According to one embodiment of the present disclosure, the housing (30) may be provided to accommodate oil. The rotating shaft (50) may include: a shaft body (51) forming an oil passage (52); a suction hole (53) formed at a lower end of the shaft body (51) and provided to suck oil accommodated in the housing (30) into the oil passage (52); and a discharge hole (54) provided to communicate the oil passage (52) of the shaft body (51) with an outer surface of the shaft body (51) and to discharge oil flowing along the oil passage (52).

[0221] According to one embodiment of the present disclosure, the discharge holes (54) of the rotating shaft (50) may be provided in plurality. The plurality of discharge holes (54) may be spaced apart from each other along the longitudinal direction of the oil passage (52).

[0222] According to one embodiment of the present disclosure, a compressor comprises: an upper cylinder (100a) including an upper cylinder chamber (110a); an upper roller (200a) provided to be rotatable in the upper cylinder chamber (110a) and provided to compress refrigerant flowing into the upper cylinder chamber (110a) as it rotates; an upper vane (300a) provided to partition the upper cylinder chamber (110a) and movable in conjunction with the rotation of the upper roller (200a); a lower cylinder (100b) disposed below the upper cylinder (100a) and including a lower cylinder chamber (110b); a lower roller (200b) provided to be rotatable in the lower cylinder chamber (110b) and provided to compress refrigerant flowing into the lower cylinder chamber (110b) as it rotates; It may include a lower vane (300b) that is provided to partition the lower cylinder chamber (110b) and is movable in conjunction with the rotation of the lower roller (200b); and a rotary shaft (50) that is provided to transmit rotary force to the upper roller (200a) and the lower roller (200b). The upper roller (200a) may include an upper vane slot (210a) that is provided so that a part of the upper vane (300a) can be inserted, and an upper oil guide (220a) that opens from the upper vane slot (210a) toward the rotary shaft (50). The lower roller (200b) may include a lower vane slot (210b) into which a portion of the lower vane (300b) can be inserted, and a lower oil guide (220b) that opens from the lower vane slot (210b) toward the rotating shaft (50).

[0223] According to one embodiment of the present disclosure, the upper vane slot (210a) may be formed by being recessed from the outer surface of the upper roller (200a). The upper oil guide (220a) may extend from the upper vane slot (210a) to the inner surface of the upper roller (200a). The lower vane slot (210b) may be formed by being recessed from the outer surface of the lower roller (200b). The lower oil guide (220b) may extend from the lower vane slot (210b) to the inner surface of the lower roller (200b).

[0224] A compressor according to one embodiment of the present disclosure may further include a cylinder cover (400b) disposed below the lower cylinder (100b) and provided to cover the lower side of the lower cylinder chamber (110b). The cylinder cover (400b) may include a lower support portion (420b) provided to surround the rotary shaft (50); and a cover groove (421) that is sunken from the inner surface of the lower support portion (420b), and allows oil to flow between the rotary shaft (50) and the lower support portion (420b).

[0225] According to one embodiment of the present disclosure, a compressor may include a housing (30); a cylinder (100) disposed inside the housing (30) and including a cylinder chamber (110); a roller (200) provided to be rotatable in the cylinder chamber (110) and configured to compress refrigerant flowing into the cylinder chamber (110) as it rotates; a rotary shaft (50) provided to provide rotary force to the roller (200) and arranged to penetrate the roller (200); and a vane (300) including a first end (310) fixed to the cylinder (110) and a second end (320) configured to be movable by the rotation of the roller (200). The roller (200) may include an oil guide (220) provided to open toward the rotary shaft (50) and to guide oil.

[0226] According to one embodiment of the present disclosure, the roller (200) may further include a vane groove (210) formed by being recessed from an outer surface of the roller (200) so that the second end (320) of the vane (300) can be inserted therein. The oil guide (220) may extend from the vane groove (210) toward the rotary shaft (50). The oil guide (220) may be configured to guide oil pushed by the vane (300).

[0227] According to the invention, the efficiency of a compressor can be improved.

[0228] According to the invention, the life of the compressor can be increased.

[0229] According to the present disclosure, a compressor may include an oil guide configured to guide oil within a vane groove. The oil guide may prevent or reduce the oil within the vane groove from flowing into the inlet chamber. This may prevent a decrease in the volumetric efficiency of the compressor. Furthermore, as the oil guide guides the oil within the vane groove, the pressure within the vane groove may be reduced. This may reduce wear on the vane.

[0230] The effects that can be obtained from the present disclosure are not limited to the effects mentioned above, and other effects that are not mentioned can be clearly understood by a person having ordinary skill in the art to which the present disclosure belongs from the description below.

[0231] The above illustrates and describes specific embodiments. However, the invention is not limited to the above-described embodiments, and those skilled in the art will readily appreciate that various modifications and implementations can be made without departing from the spirit and scope of the invention as set forth in the claims below.

Claims

1. Housing; A cylinder disposed inside the housing and including a cylinder chamber inside; A roller that is provided to be rotatable in the cylinder chamber, the roller including a vane groove formed on an outer surface and an oil guide extending between the vane groove and the inner surface to guide oil within the vane groove; A compressor comprising a vane, which is inserted into the vane groove and is provided to be movable, and which, together with the roller, divides the cylinder chamber into an inlet chamber into which refrigerant is introduced and a compression chamber into which the refrigerant is compressed.

2. In paragraph 1, As a rotating shaft for providing rotational force to the roller, it further includes a rotating shaft provided to penetrate the roller; The above oil guide is a compressor that guides oil to flow along the gap between the vane groove and the opening of the oil guide formed on the inner surface of the roller.

3. In paragraph 2, It further includes a cam formed on the outer surface of the above-mentioned rotating shaft and coupled to the inner surface of the above-mentioned roller to rotate the above-mentioned roller eccentrically; The above oil guide is a compressor that guides oil to flow between the vane groove and the cam.

4. In paragraph 1, The above vane, A first end that comes into contact with the fixed part of the cylinder, A compressor comprising a second end provided on the opposite side of the first end, configured to rotate around the first end, and configured to move within the vane groove by rotation of the roller.

5. In paragraph 4, The above oil guide, A compressor configured such that oil pressurized by the second end of the vane flows along the oil guide within the vane groove.

6. In paragraph 1, The above oil guide, A compressor that is sunken from the upper surface of the roller or the lower surface of the roller.

7. In paragraph 1, The above oil guide is a top oil guide that is sunken from the upper surface of the roller, The above roller, A compressor further comprising a bottom oil guide spaced downward from the top oil guide and recessed from the lower surface of the roller.

8. In paragraph 1, The above vein groove extends along the first direction, A compressor in which the above oil guide extends along a second direction intersecting the first direction.

9. In paragraph 1, The above vein groove has a first length along the vertical direction, A compressor wherein the oil guide has a second length that is shorter than the first length along the vertical direction.

10. In paragraph 4, The above vane, A first vane side connecting the first end and the second end and exposed to the inlet chamber, A second vane side is provided on the opposite side of the first vane side, connects the first end and the second end, and includes a second vane side exposed to the compression chamber. The above roller, A first wall portion formed by penetrating the upper surface and the lower surface of the roller and arranged to face the first vane side; A second wall portion spaced apart from the first wall portion, formed by penetrating the upper surface and the lower surface of the roller, and provided to face the second vane side; A third wall portion connecting the first wall portion and the second wall portion and provided to face the second end of the vane; A fourth wall extending from the third wall, A fifth wall portion that is spaced apart from the fourth wall portion and extends from the first wall portion; A compressor comprising a sixth wall portion connecting the fourth wall portion and the fifth wall portion.

11. In paragraph 10, The above vein home is provided to be defined by the first wall portion, the second wall portion, and the third wall portion, A compressor in which the above oil guide is defined by the fourth wall portion, the fifth wall portion, and the sixth wall portion.

12. In paragraph 1, Further comprising a cylinder cover arranged below the cylinder and provided to cover the lower side of the cylinder chamber; The above cylinder cover, A support provided to surround the above rotating shaft; and A compressor including a cover groove that is sunken from the inner surface of the support portion and is provided to guide oil passing through the oil guide.

13. In paragraph 12, The above cover home, A compressor configured to guide oil flowing along the cover groove downward.

14. In paragraph 2, The above housing is provided to accommodate oil, The above rotating shaft, A shaft body forming an oil passage; A suction hole formed at the lower end of the shaft body and provided to suck oil contained in the housing into the oil path; and A compressor including a discharge hole provided to discharge oil flowing along the oil path to the outer surface of the shaft body.

15. In paragraph 14, The above discharge holes of the above rotating shaft are provided in multiple numbers, A compressor wherein the plurality of discharge holes are spaced apart along the length of the oil passage.

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