Cylinder, compressor and household appliance

Abstract

The present disclosure relates to a cylinder, a compressor and a household appliance, wherein an exhaust end surface of the cylinder is provided with an exhaust port, the exhaust port is configured as a curved surface connecting the inner cavity of the cylinder with the outside, and the curved surface is at least partially convex towards the exhaust direction. In the cylinder provided by the present disclosure, the exhaust port is designed in the form of being convex towards the exhaust direction, so that the clearance volume is reduced as much as possible, the refrigerating capacity is increased, the efficiency of the compressor is improved, the structure design is simple, no additional parts are needed, and the cost is low.

Description

Technical Field

[0001] This disclosure relates to the field of compressor technology, and more particularly to a cylinder, compressor, and household appliance. Background Technology

[0002] When a compressor is running, the cylinder is constantly inhaling and venting air. During the venting phase, the compressed refrigerant inside the cylinder is discharged through the vent. In related technologies, the vent of the cylinder is usually designed as a quarter-concave spherical shape. To prevent excessive local venting pressure, the radius of the spherical vent is difficult to design to be small, resulting in a large clearance volume. The refrigerant in the clearance volume is repeatedly compressed, reducing the compressor's production capacity and efficiency. Utility Model Content

[0003] To overcome the problems existing in the related technologies, this disclosure provides a cylinder, a compressor, and a household appliance.

[0004] According to a first aspect of the present disclosure, a cylinder is provided, wherein the cylinder has an exhaust port on its exhaust end face, the exhaust port being constructed as a curved surface connecting the inner cavity of the cylinder to the outside, and the curved surface at least partially protruding toward the exhaust direction.

[0005] Optionally, the cylinder has a radially arranged vane groove, and the exhaust port is located at the junction of the inner surface of the cylinder and the exhaust end face, and is located close to the vane groove.

[0006] Optionally, the exhaust port is located at the intersection of the vane groove and the inner surface of the cylinder.

[0007] Optionally, the exhaust port and the inner surface intersect to form a boundary line, the shape of which is configured to connect the inner cavity and the exhaust port.

[0008] Optionally, the boundary line includes a first intersection segment and a second intersection segment that form an angle with each other, the first intersection segment extending circumferentially along the inner surface, and the second intersection segment extending from the first intersection segment toward the exhaust end face.

[0009] Optionally, the first intersection segment and the second intersection segment are perpendicular.

[0010] Optionally, a main bearing is provided on the exhaust end face, the exhaust port corresponds to the exhaust hole of the main bearing, and the length of the first intersection segment is not greater than the diameter of the exhaust hole; the length of the second intersection segment is not greater than 20% of the axial height H of the cylinder.

[0011] Optionally, the intersection of the exhaust port and the exhaust end face is an arc segment, with one end of the arc segment extending to the sliding vane groove and the other end extending to the second intersection segment.

[0012] Optionally, the inner surface of the inner cavity is provided with an air inlet, and the air inlet and the exhaust port are respectively located on both sides of the slide groove.

[0013] According to a second aspect of the present disclosure, a compressor is provided, including the cylinder described above.

[0014] According to a third aspect of the present disclosure, a household appliance is provided, the household appliance including the compressor described above.

[0015] The technical solutions provided by the embodiments of this disclosure may include the following beneficial effects: In the cylinder provided by this disclosure, the exhaust port is designed to protrude in the exhaust direction. While ensuring that the exhaust port area remains unchanged, the clearance volume is reduced as much as possible, the cooling capacity is increased, and the efficiency of the compressor is improved. At the same time, the structural design is simple, no additional parts are required, and the cost is low.

[0016] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and are not intended to limit this disclosure. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form a part of this specification, illustrate embodiments consistent with this disclosure and, together with the description, serve to explain the principles of this disclosure.

[0018] Figure 1 This is a cross-sectional view of a cylinder shown according to relevant exemplary embodiments.

[0019] Figure 2 and Figure 3 This is a schematic diagram of a cylinder from different perspectives, according to an exemplary embodiment.

[0020] Figure 4 This is a schematic diagram illustrating the protruding direction of an exhaust port in a cylinder according to an exemplary embodiment.

[0021] Figure 5 This is a schematic diagram of the structure of a cylinder according to an exemplary embodiment.

[0022] Figure 6 yes Figure 5 A magnified view of part A in the middle.

[0023] Explanation of reference numerals in the attached figures 1-Cylinder; 10-Exhaust port; 11-Inner cavity; 12-Sliding vane groove; 13-Intake port; 100-Exhaust end face; 101-Boundary line; 1011-First intersection segment; 1012-Second intersection segment; 102-Circular arc segment; 103-Fourth contour edge; 111-Inner surface; 200-Ceiling surface; 300-Arc-shaped notch; 2-Rotating shaft; 3-Main bearing; 4-Rolling ring. Detailed Implementation

[0024] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numerals in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this disclosure. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this disclosure as detailed in the appended claims.

[0025] It should be noted that all actions involving the acquisition of signals, information, or data in this disclosure are carried out in compliance with the relevant data protection laws and policies of the country where the location is situated, and with authorization from the owner of the relevant device.

[0026] The following section explains the working process of the compressor and related technical terms.

[0027] Rotary compressors are widely used in electrical appliances such as air conditioners and refrigerators. A compressor includes a cylinder, stator, rotor, and receiver. When the compressor is powered on, the rotor drives the rotating shaft 2 to rotate. As the rotating shaft 2 rotates, ... Figure 1 and Figure 2 As shown, the rolling ring 4 located in the inner cavity 11 of the cylinder 1 moves, drawing in the low-temperature, low-pressure refrigerant gas that has been evaporated by the evaporator through the air inlet 13 of the cylinder 1, compressing it into a high-temperature, high-pressure refrigerant gas, and discharging the compressed gas outward through the exhaust port 10 of the cylinder 1. The structural design of the exhaust port 10 is directly related to the efficiency of the compressor.

[0028] Clearance volume refers to the space or gap left in certain parts of the cylinder due to the needs of compressor structure, manufacturing, assembly, and operation. In this disclosure, the clearance volume refers to the volume of the exhaust port 10. Clearance volume is also known as "harmful volume" or "harmful space," and it should be minimized as much as possible when designing the cylinder.

[0029] In related technologies, such as Figure 4As shown, the exhaust port 10 is designed as a concave arc-shaped notch 300, as indicated by the dotted line in the figure. Here, "concave" refers to its shape relative to the inclined surface 200 (as indicated by the dashed line in the figure). The concave shape of the exhaust port 10 obviously results in a larger clearance volume, leading to repeated compression of the refrigerant within this clearance volume and reducing compressor efficiency. The inclined surface 200 is formed by a single cut during the machining of the exhaust port 10.

[0030] To solve the above problems, such as Figures 1 to 4 As shown, this disclosure provides a cylinder. The exhaust end face 100 of the cylinder 1 is provided with an exhaust port 10. The exhaust port 10 is constructed as a curved surface connecting the inner cavity 11 of the cylinder 1 to the outside, and the curved surface at least partially protrudes in the exhaust direction. Here, "exhaust direction" refers to... Figure 1 In the upward direction shown in the middle diagram, the exhaust end face 100 can be the upper end face of cylinder 1, and the "protrusion" is relative to... Figure 4 The inclined surface 200 shown is convex in the opposite direction to the arc-shaped notch 300. This disclosure includes embodiments in which the entire surface of the exhaust port 10 protrudes in the exhaust direction, as well as embodiments in which a portion is designed as a flat or concave surface and a portion protrudes in the exhaust direction, all of which fall within the protection scope of this disclosure.

[0031] In the cylinder 1 provided in this disclosure, the exhaust port 10 is designed to protrude in the exhaust direction. While ensuring that the area of ​​the exhaust port 10 remains unchanged, the clearance volume is minimized as much as possible, the cooling capacity is increased, and the efficiency of the compressor is improved. At the same time, the structural design is simple, no additional parts are required, and the cost is low.

[0032] like Figure 1 As shown, the rolling ring 4 is disposed in the inner cavity 11 of the cylinder 1, as follows. Figure 2 As shown, cylinder 1 has a radially arranged vane groove 12. Inlet 13 and outlet 10 are located on opposite sides of the vane groove 12. A vane (not shown) that abuts against a rolling ring 4 is located within the vane groove 12. The rolling ring 4 performs eccentric motion, and the vane reciprocates, dividing the inner cavity 11 into a high-pressure chamber and a low-pressure chamber. The low-pressure chamber communicates with the inlet 13, and the high-pressure chamber communicates with the outlet 10. The outlet 10 is located at the junction of the inner surface 111 and the outlet end face 100 of cylinder 1, and is positioned close to the vane groove 12. The outlet 10, located at the junction of the inner surface 111 and the outlet end face 100, is designed as a curved surface to connect the inner cavity 11 to the outside. The outlet 10 can be positioned on one side of the vane groove 12; the closer it is to the vane groove 12, the shorter the exhaust shut-off time, thereby improving compressor efficiency.

[0033] In an exemplary embodiment of this disclosure, as shown in the figures, the exhaust port 10 is located at the intersection of the vane groove 12 and the inner surface 111 of the cylinder 1. A portion of the edge of the vane groove 12 is formed as one of the contour edges of the exhaust port 10. The exhaust port 10 is closest to the vane groove 12, resulting in the shortest exhaust closing time. Furthermore, since one of the contour edges is directly formed from a portion of the edge of the vane groove 12, the exhaust port 10 is easier to manufacture compared to embodiments where the exhaust port 10 is located on one side of the vane groove 12.

[0034] like Figure 5 and Figure 6 As shown, the exhaust port 10 has a first contour edge, a second contour edge, a third contour edge, and a fourth contour edge 103. Of course, this disclosure does not limit the shape, number, or shape of the exhaust port 10. In this embodiment, the exhaust port 10 and the inner surface 111 of the cylinder 1 intersect to form a boundary line 101. The boundary line 101 is configured to connect the inner cavity 11 and the exhaust port 10. In an exemplary embodiment of this disclosure, the boundary line 101 includes a first intersection segment 1011 and a second intersection segment 1012 forming an angle pair. The intersection line between the exhaust port 10 and the exhaust end face 100 is an arc segment 102. The first intersection segment 1011 forms the first contour edge, the second intersection segment 1012 forms the second contour edge, the arc segment 102 forms the third contour edge, and a portion of the edge of the sliding vane groove 12 forms the fourth contour edge 103. The four contour edges are connected sequentially to form the outer contour of the exhaust port 10. In other embodiments, such as... Figure 6 As shown, one end of the arc segment 102 can be directly connected to the end of the first intersection segment 1011. The boundary line 101 may only include the first intersection segment 1011 and the second intersection segment 1012 may be omitted. Alternatively, the second intersection segment 1012 may extend from the first intersection segment 1011 along any path to the exhaust end face 100. It may be a straight line or an arc. Of course, a straight line segment or an arc segment may also be added between the second intersection segment 1012 and the arc segment 102. All of these are within the protection scope of this disclosure.

[0035] In the axial direction, the first intersection segment 1011 extends circumferentially along the inner surface 111 and is located below the exhaust end face 100. The second intersection segment 1012 extends axially and is arranged at an angle to the first intersection segment 1011. The first intersection segment 1011 being located below the exhaust end face 100 allows communication between the inner cavity 11 and the outside. The shape and angle between the first intersection segment 1011 and the second intersection segment 1012 are not limited. In this embodiment, the second intersection segment 1012 extends in a direction parallel to the cylinder axis. The first intersection segment 1011 and the second intersection segment 1012 are arranged perpendicularly, forming a right-angle intersection line, which ensures the size of the opening connecting the exhaust port 10 and the inner cavity 11, thereby reducing exhaust resistance. In other embodiments, the angle between the first intersection segment 1011 and the second intersection segment 1012 can also be an acute angle, which is not limited in this disclosure. One end of the arc segment 102 extends to the slide groove 12, and the other end extends to the second intersection segment 1012. The arc segment 102 can be a quarter circle arc, and its curvature design depends on the length of the second intersection segment 1012. The specific design can be made according to the needs.

[0036] In this disclosure, such as Figure 1 As shown, a main bearing 3 is provided on the exhaust end face 100, and the position of the exhaust port 10 corresponds to the position of the exhaust hole of the main bearing 3. The two work together to achieve exhaust. In this disclosure, the length of the first intersection segment 1011 is not greater than the diameter of the exhaust hole. The longer the second intersection segment 1012 is, the smaller the exhaust resistance, but the clearance volume will increase, and the efficiency of the compressor will decrease accordingly. In order to achieve a balance between reducing exhaust resistance and reducing clearance volume, in this disclosure, the length of the second intersection segment 1012 is not greater than 20% of the cylinder axial height H. This ensures that the clearance volume is not too large and also reduces exhaust resistance, avoiding excessive local exhaust pressure.

[0037] According to a second aspect of this disclosure, a compressor is provided that includes the cylinder described above. The exhaust port 10 is designed to bulge upwards, which, compared to a concave design, maintains the same area during exhaust, effectively reduces the clearance volume, increases the cooling capacity, improves the compressor's energy efficiency, and simplifies the structural design.

[0038] According to a third aspect of this disclosure, a household appliance is provided, which may be a refrigerator or an air conditioner, and the household appliance includes the compressor provided in this disclosure. The household appliance has all the beneficial effects of the cylinder and compressor described above, which will not be elaborated further here.

[0039] In the above detailed description, reference has been made to the accompanying drawings, which illustrate specific aspects of this disclosure by way of illustration. In this regard, terms indicating direction or positional relationship, such as “center,” “longitudinal,” “lateral,” “length,” “width,” “thickness,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential,” are used with reference to the orientation of the described figures. Since components of the described device can be positioned in multiple different orientations, directional terms are used for illustrative purposes and not for limitation. It should be understood that other aspects can be utilized and structural or logical changes can be made without departing from the concept of this disclosure. Therefore, the following detailed description should not be considered limiting.

[0040] It should be understood that, unless otherwise specifically indicated, features of various embodiments of this disclosure described herein can be combined with each other. As used herein, the term “and / or” includes any one of the relevant listed items and any combination of any two or more; similarly, “at least one of…” includes any one of the relevant listed items and any combination of any two or more.

[0041] It should be understood that, unless otherwise expressly specified and limited, the terms "joining," "attaching," "installing," "connecting," "linking," "fixing," etc., used in the embodiments of this disclosure should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms herein based on the specific circumstances.

[0042] Furthermore, the term "above" as used herein with respect to components, elements, or material layers formed or located "above" a surface may be used to indicate that the component, element, or material layer is "indirectly" positioned (e.g., placed, formed, deposited, etc.) on the surface such that one or more additional components, elements, or layers are arranged between the surface and the component, element, or material layer. However, the term "above" as used with respect to components, elements, or material layers formed or located "above" a surface may also optionally have a specific meaning: that the component, element, or material layer is "directly" positioned (e.g., placed, formed, deposited, etc.) on the surface, for example, in direct contact with the surface.

[0043] Although terms such as “first,” “second,” and “third” may be used herein to describe various components, parts, regions, layers, or sections, these components, parts, regions, layers, or sections are not limited to these terms. Rather, these terms are used only to distinguish one component, part, region, layer, or section from another. Therefore, without departing from the teachings of the examples described herein, the first component, part, region, layer, or section mentioned in the examples may also be referred to as the second component, part, region, layer, or section. Furthermore, the terms “first” and “second” are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as “first” or “second” may explicitly or implicitly include at least one of that feature. In the description herein, “a plurality” means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0044] It should be understood that spatial relative terms, such as “above,” “upper,” “below,” and “lower,” are used herein to describe the relationship between one element and another shown in the figures. In addition to the orientation depicted in the figures, these spatial relative terms are also intended to encompass different orientations of the device in use or operation. For example, if the device in the figures is flipped, an element described as “above” or “upper” relative to another element would be “below” or “lower” relative to that other element. Thus, depending on the spatial orientation of the device, the term “above” encompasses both above and below orientations. Devices may have other orientations (e.g., rotated 90 degrees or in other orientations), and the spatial relative terms used herein should be interpreted accordingly.

[0045] Furthermore, the term “exemplary” is used herein to mean serving as an example, instance, or illustration. Any aspect or design described herein as “exemplary” is not necessarily to be construed as advantageous compared to other aspects or designs. Rather, the use of the term “exemplary” is intended to present the concept in a concrete manner. As used herein, the term “or” is intended to mean an inclusive “or” rather than an exclusive “or.” That is, unless otherwise specified or clear from the context, “X applies A or B” is intended to mean any of the natural inclusive arrangements. That is, “X applies A or B” satisfies any of the foregoing instances if X applies A; X applies B; or both X applies A and B. Additionally, unless otherwise specified or clear from the context to refer to the singular form, the articles “a” and “an” as used in this application and the appended claims are generally understood to mean “one or more.”

[0046] Similarly, although this disclosure has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art upon reading and understanding this specification and the accompanying drawings. This disclosure includes all such modifications and variations and is limited only by the scope of the claims. In particular, with respect to the various functions performed by the components described above (e.g., elements, resources, etc.), unless otherwise indicated, the terminology used to describe such components is intended to correspond to any component (functionally equivalent) that performs the specific function of the described component, even if structurally not equivalent to the disclosed structure. Furthermore, although specific features of this disclosure may have been disclosed with respect to only one of several implementations, such features may be combined with one or more other features of other implementations, as may be desired and advantageous to any given or particular application. Moreover, with regard to the terms “comprising,” “owning,” “having,” “having,” or variations thereof as used in the detailed description or claims, such terms are intended to be inclusive in a manner similar to the term “including.”

[0047] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the invention disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the appended claims.

[0048] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A cylinder, characterized in that, The cylinder has an exhaust port on its exhaust end face. The wall of the exhaust port is a curved surface that connects the inner cavity of the cylinder to the outside. At least part of the curved surface protrudes in the exhaust direction. The cylinder has a radially arranged vane groove. The exhaust port is located at the junction of the inner surface of the cylinder and the exhaust end face, and is located close to the vane groove.

2. The cylinder according to claim 1, characterized in that, The exhaust port is located at the intersection of the vane groove and the inner surface of the cylinder.

3. The cylinder according to claim 1, characterized in that, The exhaust port and the inner surface intersect to form a boundary line, and the shape of the boundary line is configured to connect the inner cavity and the exhaust port.

4. The cylinder according to claim 3, characterized in that, The boundary line includes a first intersection segment and a second intersection segment that form an angle with each other. The first intersection segment extends circumferentially along the inner surface, and the second intersection segment extends from the first intersection segment toward the exhaust end face.

5. The cylinder according to claim 4, characterized in that, The first intersection segment and the second intersection segment are perpendicular.

6. The cylinder according to claim 4, characterized in that, A main bearing is provided on the exhaust end face, the exhaust port corresponds to the exhaust hole of the main bearing, and the length of the first intersection segment is not greater than the diameter of the exhaust hole; the length of the second intersection segment is not greater than 20% of the axial height H of the cylinder.

7. The cylinder according to claim 4, characterized in that, The intersection of the exhaust port and the exhaust end face is an arc segment, with one end of the arc segment extending to the sliding vane groove and the other end extending to the second intersection segment.

8. A compressor, characterized in that, The cylinder includes any one of claims 1-7.

9. A household appliance, characterized in that, Includes the compressor as described in claim 8.

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