Powder cylinder, rolling rotor compressor and air conditioner

Abstract

The utility model discloses a powder cylinder, a rolling rotor compressor and an air conditioner, the thickness of a first reference hole area and the thickness of a second reference hole area are smaller than those of a rivet hole area, a screw hole area and an air suction and exhaust area, so that machining and assembling of the first reference hole area and the second reference hole area can be met; meanwhile, the screw hole area comprises the original part and the weight reduction part which are sequentially connected, the outer circle radius of the weight reduction part is smaller than that of the original part, on the premise that the strength of parts is guaranteed, the size of the parts is reduced to a certain degree, the weight of the whole air cylinder is reduced, and the assembly and disassembly difficulty is lowered; the transportation risk is avoided, the number of transported words is increased, and the transportation efficiency is improved.

Description

Technical Field

[0001] This utility model belongs to the field of compressor technology and relates to a powder cylinder, a rolling rotor compressor and an air conditioner. Background Technology

[0002] With the development of compressor technology, the manufacturing cost requirements are getting lower and lower. Powder metallurgy cylinders are increasingly being chosen by manufacturers for the production of pump body parts because their shape is guaranteed by molds, they can be made into relatively complex shapes, and they have high production efficiency and fewer rough machining processes.

[0003] The disadvantages of powder metallurgy materials are high material costs and lower strength than cast iron parts. The excessive weight of existing powder cylinders may lead to overloading of transport vehicles, posing a transportation risk. At the same time, due to weight restrictions, the number of cylinders transported in a single trip will be significantly reduced, reducing transportation efficiency. Excessive weight will increase the difficulty of loading and unloading, and increase the complexity of transportation. Utility Model Content

[0004] The purpose of this invention is to solve the problems in the prior art where the individual weight of the powder cylinder is too large, leading to overloading of transport vehicles, posing transportation risks, increasing loading and unloading difficulties, and significantly reducing the number of cylinders transported per trip due to weight limitations, thus reducing transportation efficiency. The invention provides a powder cylinder, a rolling rotor compressor, and an air conditioner.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A powder cylinder includes a rivet hole area, a screw hole area, and an intake and exhaust area connected in sequence, wherein the intake and exhaust area is connected to a first reference hole area, and the screw hole area is connected to a second reference hole area.

[0007] The thickness of the first reference hole region and the second reference hole region is less than the thickness of the rivet hole region, the screw hole region and the intake and exhaust region;

[0008] The screw hole area includes an original part and a weight-reducing part connected in sequence, wherein the outer radius of the weight-reducing part is smaller than the outer radius of the original part.

[0009] The further improvement of this utility model is as follows:

[0010] The thickness of the rivet hole area, screw hole area and air intake / exhaust area is H, and the thickness of the first reference hole area and the second reference hole area is h. H and n satisfy: 3≤h≤H / 2.

[0011] Weight-reducing holes are provided in the rivet hole area, and the weight-reducing holes are elliptical in shape.

[0012] The width of the weight reduction hole is a, which satisfies: (R1-R3) / 2-L≥3, and L≥a, where R1 represents the outer radius of the screw hole area; L represents the length of the weight reduction hole along the cylinder center direction; and R3 represents the inner radius of the cylinder body.

[0013] The screw hole area has several screw holes distributed circumferentially, and the center of each screw hole is equidistant from the center of the cylinder body.

[0014] The outer radius of the weight-reducing part is R2, which satisfies 1.5+r+φ / 2≤R2≤R1, where R1 represents the outer radius of the screw hole area, r represents the distance from the center of the screw hole to the center of the cylinder body, and φ represents the diameter of the screw hole.

[0015] The second reference hole region is located on the outer wall of the screw hole region.

[0016] The circumference of the outer circle of the weight-reducing part is greater than the circumference of the outer circle of the original part.

[0017] A rolling rotor compressor includes the powder cylinder described in any one of the present invention.

[0018] An air conditioner includes the powder cylinder of this utility model.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] This utility model discloses a powder cylinder. The thickness of the first reference hole region and the second reference hole region is smaller than the thickness of the rivet hole region, the screw hole region, and the intake and exhaust region. This satisfies the processing and assembly requirements of the first reference hole region and the second reference hole region, and also reduces the volume of the cylinder in the thickness direction. At the same time, the screw hole region includes a primary part and a weight-reducing part connected in sequence. The outer radius of the weight-reducing part is smaller than the outer radius of the primary part. While ensuring the strength of the part, the volume of the part is reduced to a certain extent, thereby reducing the weight of the entire cylinder, reducing the difficulty of loading and unloading, avoiding transportation risks, and also increasing the number of units transported at once, thus improving transportation efficiency.

[0021] Furthermore, the thickness of the rivet hole area, screw hole area, and air intake / exhaust area is H, and the thickness of the first reference hole area and the second reference hole area is h. The H and n satisfy: 3≤h≤H / 2. While ensuring the strength of the critical areas, namely the rivet hole area, screw hole area, and air intake / exhaust area, the thickness of H is achieved, the weight of the local area is reduced, the structural composition of the non-critical areas is reduced, and unnecessary structural accumulation is reduced, thereby reducing the overall weight.

[0022] Furthermore, the width of the weight-reducing hole is 'a', which satisfies: (R1-R3) / 2-L≥3, and L≥a. By setting the structural constraint of the weight-reducing hole width 'a', the size of the weight-reducing hole is ensured not to be too large, thereby avoiding weakening the structural strength of the cylinder due to an excessively large weight-reducing hole. The width 'a' of the weight-reducing hole is limited to a reasonable range, achieving the purpose of weight reduction while ensuring the mechanical performance of the cylinder. This constraint also ensures that there is sufficient material thickness between the weight-reducing hole and the inner hole R3 of the cylinder body and the outer circle R1 of the screw hole area, avoiding structural weakness caused by the weight-reducing hole design. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the powder metallurgy cylinder structure of this utility model;

[0025] Figure 2 This is a front view of the reference hole area of ​​the powder metallurgy cylinder of this utility model;

[0026] Figure 3 This is a right view of the reference hole area of ​​the powder metallurgy cylinder of this utility model;

[0027] Figure 4 This is a schematic diagram of the rivet hole area of ​​the powder metallurgy cylinder of this utility model;

[0028] Figure 5 This is a schematic diagram of the screw hole area of ​​the powder metallurgy cylinder of this utility model.

[0029] Figure 6 This is a three-dimensional view of the powder metallurgy cylinder structure of this utility model.

[0030] Wherein: 11-First reference hole area; 12-Rivet hole area; 13-Screw hole area; 14-Suction and exhaust area; 15-Second reference hole area; 131-Screw hole. Detailed Implementation

[0031] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0033] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0034] In the description of the embodiments of this utility model, it should be noted that if terms such as "upper," "lower," "horizontal," or "inner" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing the utility model and simplifying the description, 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, and therefore should not be construed as a limitation on the utility model. Furthermore, terms such as "first" and "second" are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Furthermore, the use of the term "horizontal" does not imply that the component must be absolutely horizontal, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0036] In the description of the embodiments of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0037] The present invention will now be described in further detail with reference to the accompanying drawings:

[0038] See Figures 1 to 6 This utility model discloses a powder cylinder, whose pump body adopts a powder metallurgy cylinder. Through differentiated design in different areas, the amount of material used is reduced to a large extent, which can ensure the strength of the parts and reduce the material cost by more than 20%.

[0039] Reference Figure 1 As shown, the pump body assembly of this utility model includes a powder metallurgy cylinder. The cylinder consists of four areas: a reference hole area 11 for machining and assembly of the parts; a rivet hole area 12 for rivet clearance holes when the main bearing seat is assembled with the powder metallurgy cylinder; a screw hole area 13 for fixing the main bearing seat to the powder metallurgy cylinder; and a suction and exhaust area 14 with the pump body's suction and exhaust ports, and several weight-reducing structures. Specifically, the structure of the powder metallurgy cylinder disclosed in this utility model is as follows:

[0040] Example 1

[0041] This embodiment discloses a powder cylinder, including a rivet hole region 12, a screw hole region 13, and an intake / exhaust region 14 connected in sequence. The intake / exhaust region 14 is connected to a first reference hole region 11, and the screw hole region 13 is connected to a second reference hole region 15. The thickness of the first reference hole region 11 and the second reference hole region 15 is less than the thickness of the rivet hole region 12, the screw hole region 13, and the intake / exhaust region 14. The screw hole region 13 includes an original part and a weight-reducing part connected in sequence, and the outer radius of the weight-reducing part is smaller than the outer radius of the original part.

[0042] The thinner thickness of the first reference hole region 11 and the second reference hole region 15 further reduces the overall weight. This design reduces material usage and lowers the overall weight without affecting functionality. The reduced overall weight of the cylinder makes transportation easier, and the sequential connection of the regions results in a compact structure that reduces space occupation, facilitates packaging and transportation, and improves transportation efficiency.

[0043] Example 2

[0044] This embodiment discloses a powder cylinder, including a rivet hole region 12, a screw hole region 13, and an intake / exhaust region 14 connected in sequence. The intake / exhaust region 14 is connected to a first reference hole region 11, and the screw hole region 13 is connected to a second reference hole region 15. The thickness of both the first reference hole region 11 and the second reference hole region 15 is less than the thickness of the rivet hole region 12, the screw hole region 13, and the intake / exhaust region 14. The screw hole region 13 includes a primary part and a weight-reducing part connected in sequence, and the outer radius of the weight-reducing part is smaller than the outer radius of the primary part. The thickness of the rivet hole region 12, the screw hole region 13, and the intake / exhaust region 14 is H (H is also the thickness of the entire cylinder body), and the thickness of the first reference hole region 11 and the second reference hole region 15 is h. H and n satisfy: 3 ≤ h ≤ H / 2. See [link to relevant documentation]. Figures 2 to 3 .

[0045] This embodiment ensures that the thickness of the critical areas, namely the rivet hole area, screw hole area, and air intake / exhaust area, is H-strength, while achieving weight reduction in local areas, reducing the structural composition of non-critical areas, and reducing unnecessary structural accumulation, thereby reducing the overall weight.

[0046] Example 3

[0047] This embodiment discloses a powder cylinder, including a rivet hole region 12, a screw hole region 13, and an intake / exhaust region 14 connected in sequence. The intake / exhaust region 14 is connected to a first reference hole region 11, and the screw hole region 13 is connected to a second reference hole region 15. The thickness of the first reference hole region 11 and the second reference hole region 15 is less than the thickness of the rivet hole region 12, the screw hole region 13, and the intake / exhaust region 14. The screw hole region 13 includes a primary part and a weight-reducing part connected in sequence, and the outer radius of the weight-reducing part is smaller than the outer radius of the primary part. A weight-reducing hole is formed on the rivet hole region 12, and the weight-reducing hole has an elliptical structure. The width of the weight-reducing hole is 'a', which satisfies: (R1-R3) / 2-L≥3, and L≥a, where R1 represents the outer radius of the screw hole region 13; L represents the length of the weight-reducing hole along the cylinder center direction; and R3 represents the inner radius of the cylinder body. See [reference needed]. Figure 4 .

[0048] Example 4

[0049] This embodiment discloses a powder cylinder, including a rivet hole region 12, a screw hole region 13, and an intake / exhaust region 14 connected in sequence. The intake / exhaust region 14 is connected to a first reference hole region 11, and the screw hole region 13 is connected to a second reference hole region 15. The thickness of the first reference hole region 11 and the second reference hole region 15 is less than the thickness of the rivet hole region 12, the screw hole region 13, and the intake / exhaust region 14. The screw hole region 13 includes a primary part and a weight-reducing part connected in sequence. The outer radius of the weight-reducing part is smaller than the outer radius of the primary part. A weight-reducing hole is formed on the rivet hole region 12. The weight-reducing hole has an elliptical structure and a width of a, where a satisfies: (R1-R3) / 2-L≥3, and L≥a, where R1 represents the outer radius of the screw hole region 13; L represents the length of the weight-reducing hole along the cylinder center direction; and R3 represents the inner radius of the cylinder body.

[0050] Example 5

[0051] This embodiment discloses a powder cylinder, including a rivet hole region 12, a screw hole region 13, and an intake / exhaust region 14 connected in sequence. The intake / exhaust region 14 is connected to a first reference hole region 11, and the screw hole region 13 is connected to a second reference hole region 15. The thickness of the first reference hole region 11 and the second reference hole region 15 is less than the thickness of the rivet hole region 12, the screw hole region 13, and the intake / exhaust region 14. The screw hole region 13 includes a primary part and a weight-reducing part connected in sequence. The outer radius of the weight-reducing part is smaller than the outer radius of the primary part. The screw hole region 13 has a plurality of screw holes 131 distributed circumferentially. The distance from the center of each screw hole 131 to the center of the cylinder body is the same. The outer radius of the weight-reducing part is R2, which satisfies 1.5 + r + φ / 2 ≤ R2 ≤ R1, where R1 represents the outer radius of the screw hole region 13, r represents the distance from the center of the screw hole 131 to the center of the cylinder body, and φ represents the diameter of the screw hole. See [link to relevant documentation]. Figure 5 .

[0052] This embodiment also discloses a rolling rotor compressor, including the powder cylinder described in any one of this embodiment.

[0053] This embodiment also discloses an air conditioner, including the powder cylinder described in this embodiment.

[0054] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A powder cylinder, characterized by, The air cylinder comprises a rivet hole area (12), a screw hole area (13) and an air suction and exhaust area (14) connected in sequence, the air suction and exhaust area (14) is connected with a first reference hole area (11), and the screw hole area (13) is connected with a second reference hole area (15); The thicknesses of the first reference hole area (11) and the second reference hole area (15) are smaller than the thicknesses of the rivet hole area (12), the screw hole area (13) and the air suction and exhaust area (14); The screw hole area (13) comprises a primary part and a weight-reducing part connected in sequence, and the outer radius of the weight-reducing part is smaller than the outer radius of the primary part.

2. A powder cylinder according to claim 1, characterized in that The thicknesses of the rivet hole area (12), the screw hole area (13) and the air suction and exhaust area (14) are H, the thicknesses of the first reference hole area (11) and the second reference hole area (15) are h, and the H and n satisfy 3≤h≤H / 2.

3. A powder cylinder according to claim 1, characterized in that The weight-reducing hole is an elliptical structure.

4. A powder cylinder according to claim 3, wherein The width of the weight-reducing hole is a, and the a satisfies (R1-R3) / 2-L≥3 and L≥a, wherein R1 represents the outer radius of the screw hole area (13), L represents the length of the weight-reducing hole along the center direction of the air cylinder, and R3 represents the inner hole radius of the air cylinder body.

5. A powder cylinder according to claim 1, wherein The screw hole area (13) is provided with a plurality of screw holes (131) distributed in the circumferential direction, and the distance from the center of each screw hole (131) to the center of the air cylinder body is the same.

6. A powder gas cylinder according to claim 1, wherein The outer radius of the weight-reducing part is R2, and the R2 satisfies 1.5+r+φ / 2≤R2≤R1, wherein R1 represents the outer radius of the screw hole area (13), r represents the distance from the center of the screw hole (131) to the center of the air cylinder body, and φ represents the diameter of the screw hole.

7. A powder cylinder according to claim 1, wherein The second reference hole area (15) is located on the outer wall of the screw hole area (13).

8. A powder gas cylinder according to claim 1, wherein The circumference of the outer circle of the weight-reducing part is greater than the circumference of the outer circle of the primary part.

9. A rolling piston compressor, characterized by The air cylinder comprises the air cylinder according to any one of claims 1-8.

10. An air conditioner characterized by comprising: The air cylinder comprises the air cylinder according to claim 9.

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