Cylinder structure, compressor, multi-cylinder compressor and air conditioner

Abstract

The utility model relates to the technical field of air conditioners, and provides an air cylinder structure, a compressor, a multi-cylinder compressor and an air conditioner. The second machining part comprises an outer protruding part extending outwards in the radial direction and protruding out of the first machining part, and the first machining part comprises a first upper end face, a first lower end face and a first circumferential side face connected with the first upper end face and the first lower end face in the axial direction. The second processing part comprises a second upper end surface, a second lower end surface and a second peripheral side surface connected with the second upper end surface and the second lower end surface in the axial direction; in the axial direction, the distance between the first upper end face and the second upper end face is H, and H is larger than or equal to 0.05 mm and smaller than or equal to 0.5 mm. Thus, when the air cylinder structure is subjected to finish machining, only the surface of the first machining part needs to be subjected to finish machining, and the working area needing finish machining is reduced.

Description

Technical Field

[0001] This utility model relates to the field of air conditioning technology, and in particular to a cylinder structure, a compressor, a multi-cylinder compressor and an air conditioner. Background Technology

[0002] A cylinder is a cylindrical metal component that guides a piston in its linear reciprocating motion. Fuel burns and expands inside the cylinder, pushing the piston and thus converting chemical energy into mechanical energy.

[0003] The front and rear end faces of the cylinder are the reference surfaces for installing components such as the cylinder head and piston. The flatness and roughness requirements are strict. For example, the end face where the engine cylinder block and cylinder head meet is uneven or rough, which will lead to poor sealing and leakage of air and oil.

[0004] Currently, the entire surface of the cylinder is machined. During machining, the flatness of the entire machined surface must be ensured. Any damage to the protruding edge will cause the cylinder to be damaged and unusable.

[0005] Therefore, there is an urgent need for a cylinder structure, compressor, multi-cylinder compressor, and air conditioner to solve the above-mentioned technical problems. Utility Model Content

[0006] The purpose of this invention is to provide a cylinder structure, compressor, multi-cylinder compressor and air conditioner that can reduce the area of ​​the machined surface and avoid damage to the edges of the machined surface.

[0007] To achieve this objective, the present invention adopts the following technical solution:

[0008] A cylinder structure is provided, wherein a first machining portion and a second machining portion are formed along its axial direction. The second machining portion includes an outwardly protruding portion extending radially outward from the first machining portion. The first machining portion includes a first upper end face, a first lower end face, and a first peripheral side face connecting the first upper end face and the first lower end face in the axial direction. The second machining portion includes a second upper end face, a second lower end face, and a second peripheral side face connecting the second upper end face and the second lower end face in the axial direction. The first upper end face is a precision-machined surface.

[0009] In the aforementioned axial direction, the distance between the first upper end face and the second upper end face is H, which satisfies 0.05mm≤H≤0.5mm.

[0010] As a preferred technical solution of the above-mentioned cylinder structure, in the axial projection of the above-mentioned cylinder structure, the outer contour of the first circumferential side is located within the outer contour of the second circumferential side.

[0011] As a preferred technical solution of the above-mentioned cylinder structure, the circumferential diameter d of the first machining part and the circumferential diameter D of the second machining part satisfy 0.05mm≤Dd≤0.15mm.

[0012] As a preferred technical solution for the above-mentioned cylinder structure, the connection position between the first peripheral side and the second upper end face is provided with a rounded chamfer.

[0013] A compressor is also provided, including the cylinder structure described above.

[0014] A multi-cylinder compressor is also provided, comprising at least two of the above-described cylinder structures and an intermediate plate, wherein the first processed portion protrudes a vent portion toward the external protrusion, and the end face of the vent portion is higher than the end face of the external protrusion.

[0015] An air conditioner is also provided, including the compressor described above.

[0016] An air conditioner is also provided, which includes the aforementioned multi-cylinder compressor.

[0017] The beneficial effects of this utility model are:

[0018] This utility model provides a cylinder structure, a compressor, a multi-cylinder compressor, and an air conditioner. The cylinder structure forms a first machining section and a second machining section along its axial direction. The second machining section includes an outwardly projecting portion extending radially outward from the first machining section. The first machining section includes a first upper end face, a first lower end face, and a first peripheral side face connecting the first upper end face and the first lower end face in the axial direction. The second machining section includes a second upper end face, a second lower end face, and a second peripheral side face connecting the second upper end face and the second lower end face in the axial direction. The first upper end face is a precision-machined surface. Axially, the distance between the first upper end face and the second upper end face is H, satisfying 0.05mm ≤ H ≤ 0.5mm.

[0019] The cylinder structure is stepped, including a large-diameter section and a small-diameter section. The small-diameter section is the first machining part, and the large-diameter section is the second machining part. In this way, when the cylinder structure is precision machined, only the surface of the first machining part needs to be precision machined, reducing the working area that needs to be precision machined. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0021] Figure 1This is a schematic diagram of the cylinder structure provided in an embodiment of the present invention.

[0022] In the picture:

[0023] 100. First machining section; 110. First upper end face; 120. First peripheral side face; 130. Hole structure;

[0024] 200, Second machining section; 210, Second upper end face; 220, Second peripheral side wall. Detailed Implementation

[0025] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" 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 or an electrical connection; 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0028] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0029] like Figure 1As shown, this utility model provides a cylinder structure. The cylinder structure forms a first processing part 100 and a second processing part 200 along its axial direction. The second processing part 200 includes an outwardly protruding portion extending radially outward from the first processing part 100. The first processing part 100 includes a first upper end face 110, a first lower end face, and a first peripheral side face 120 connecting the first upper end face 110 and the first lower end face in the axial direction. The second processing part 200 includes a second upper end face 210, a second lower end face, and a second peripheral side face connecting the second upper end face 210 and the second lower end face in the axial direction. The first upper end face 110 is a precision-machined surface. In the axial direction, the distance between the first upper end face 110 and the second upper end face 210 is H, which satisfies 0.05mm≤H≤0.5mm.

[0030] For example, the cylinder structure is stepped, including a large-diameter section and a small-diameter section, that is, the small-diameter section is the first machining part 100 and the large-diameter section is the second machining part 200. In this way, when the cylinder structure is precision machined, only the surface of the first machining part 100 needs to be precision machined, reducing the working area that needs to be precision machined.

[0031] Optionally, based on the axial projection of the cylinder structure, the outer contour of the first circumferential side 120 is located within the outer contour of the second circumferential side. Because the machining surface of the first machining part 100 is recessed relative to the machining surface of the second machining part 200, the probability of edge damage to the finished surface is greatly reduced, and minor damage to the non-machined surface does not affect normal use.

[0032] Optionally, the circumferential diameter d of the first processing section 100 and the circumferential diameter D of the second processing section 200 satisfy 0.05mm≤Dd≤0.15mm. This arrangement maintains the position and number of holes in the hole structure 130, keeping the hole shape unchanged. Since the hole structure 130 is used by the cylinder structure to connect and install with other components, changes to the hole structure 130 require adjustments to other components to ensure suitability. In this embodiment, although the area of ​​the hole structure 130 has been reduced (i.e., the hole structure 130 was previously located in the second processing section 200, but is now located in the first processing section 100, which is the small-diameter section of the cylinder structure), the area difference between the first processing section 100 and the second processing section is only between 0.05mm and 0.15mm, which does not affect the arrangement of the hole structure 130. Furthermore, the structural strength of the cylinder structure can still be maintained after the hole structure 130 is opened.

[0033] Optionally, multiple hole structures 130 are provided, distributed around a first axis in the first processing section 100, with the first axis parallel to the axial direction of the cylinder structure. This arrangement ensures that the first processing section 100 experiences relatively even force, avoiding localized force concentration.

[0034] Stress concentration is the state in which stress is concentrated at a specific location within a material. Stress is a load applied per unit cross-sectional area of ​​the material. Furthermore, the ratio of the maximum stress to the average stress is called the stress concentration factor. The stress concentration factor increases at locations where the shape of a part changes abruptly. Therefore, the stress is very high at the corners where surfaces intersect perpendicularly.

[0035] Optionally, a rounded chamfer is provided at the connection position between the first side surface 120 and the second upper end surface 210. In this way, by providing a rounded chamfer, the shape change at the connection position between the first side surface 120 and the second upper end surface 210 can be made gentler, and stress concentration can be reduced.

[0036] Optionally, the hole structure 130 includes a first mounting hole for mounting the lower cylinder head.

[0037] Optionally, the hole structure 130 also includes a second mounting hole for mounting another cylinder structure.

[0038] Optionally, the hole structure 130 also includes a third mounting hole for mounting an intermediate plate.

[0039] Optionally, the hole structure 130 also includes a connection port for supplying air to the intermediate plate.

[0040] A compressor is also provided, including the cylinder structure described above.

[0041] For example, the compressor includes a distributor, which includes a suction pipe and a drain pipe. The suction pipe is connected to the suction channel of the cylinder structure, and the drain pipe is connected to the guide channel of the cylinder structure. The axis of the suction channel and the axis of the drain channel are set at an angle, and both are perpendicular to the axis of the cylinder structure.

[0042] Furthermore, the compressor also includes an upper flange and a lower flange, which are axially spaced apart from the cylinder structure. The cylinder structure is clamped between the upper flange and the lower flange, and guide holes are opened at positions on the upper flange and the lower flange corresponding to the guide channel.

[0043] A multi-cylinder compressor is also provided, including at least two of the above-described cylinder structures and an intermediate plate, wherein a first processing section 100 protrudes outward with a vent section, and the end face of the vent section is higher than the end face of the outward protrusion.

[0044] An air conditioner is also provided, including the compressor described above.

[0045] An air conditioner is also provided, which includes the aforementioned multi-cylinder compressor.

[0046] Furthermore, the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, and substitutions can be made without departing from the protection scope of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments, and may include many other equivalent embodiments without departing from the concept of the present invention, the scope of which is determined by the scope of the appended claims.

Claims

1. A cylinder structure, characterized in that, The cylinder structure forms a first machining section (100) and a second machining section (200) along its axial direction. The second machining section (200) includes an outwardly protruding portion extending radially outward from the first machining section (100). The first machining section (100) includes a first upper end face (110), a first lower end face, and a first peripheral side face (120) connecting the first upper end face (110) and the first lower end face in the axial direction. The second machining section (200) includes a second upper end face (210), a second lower end face, and a second peripheral side face connecting the second upper end face (210) and the second lower end face in the axial direction. The first upper end face (110) is a precision-machined surface. In the axial direction, the distance between the first upper end face (110) and the second upper end face (210) is H, satisfying 0.05mm≤H≤0.5mm.

2. The cylinder structure according to claim 1, characterized in that, In the axial projection of the cylinder structure, the outer contour of the first circumferential side surface (120) is located within the outer contour of the second circumferential side surface.

3. The cylinder structure according to claim 2, characterized in that, The circumferential diameter d of the first processing part (100) and the circumferential diameter D of the second processing part (200) satisfy the following: 0.05mm≤Dd≤0.15mm.

4. The cylinder structure according to claim 1, characterized in that, The connection position between the first peripheral side surface (120) and the second upper end surface (210) is provided with a rounded chamfer.

5. A compressor, characterized in that, Includes the cylinder structure as described in any one of claims 1-4.

6. A multi-cylinder compressor, characterized in that, Includes at least two cylinder structures and intermediate plates as described in any one of claims 1-4, wherein the first processing part (100) protrudes a venting part into the external protrusion, and the end face of the venting part is higher than the end face of the external protrusion.

7. An air conditioner, characterized in that, Includes the compressor described in claim 5.

8. An air conditioner, characterized in that, Including the multi-cylinder compressor as described in claim 6.

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