Compressor shell for fixing motor stator and compressor

Abstract

The utility model relates to a compressor shell for fixing a motor stator and a compressor, the compressor shell is of a cylinder structure with an opening at one end, and the compressor shell is sequentially and coaxially provided with a first-stage cylinder, a second-stage cylinder and a shell cylinder inwards from the opening end of the compressor shell in the axial direction of the compressor shell. The inner diameter of the first-stage cylinder is larger than that of the second-stage cylinder, the inner diameter of the second-stage cylinder is larger than that of the shell cylinder, a first-stage segment difference is formed between the first-stage cylinder and the second-stage cylinder, a second-stage segment difference is formed between the second-stage cylinder and the shell cylinder, and the second-stage cylinder is used for fixedly installing a stator body. And the first-stage cylinder is used for avoiding the end part of the stator. According to the compressor shell used for fixing the motor stator, the first-stage segment difference and the second-stage segment difference are formed in the compressor shell, the motor stator is wrapped by the thick second-stage cylinder while the installation convenience and the safety distance of the motor stator are improved, and the noise problem of a compressor is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of compressors, in particular to a compressor housing for fixing a motor stator and a compressor. Background Art

[0002] The working principle of the compressor is to use a high-speed rotating motor to drive an eccentric shaft to compress the refrigerant in the cylinder, and realize the cooling and heating functions through the heat conversion of the refrigerant. The pulses generated by the high-speed rotation of the compressor motor and the mechanical friction of the pump body will inevitably cause the compressor to make noise.

[0003] Existing small compressors are mainly used in home environments such as indoor air conditioners and dehumidifiers, and are close to users. In order to reduce noise and improve user experience, a thicker shell is usually used to surround the motor, and the thicker shell is used to improve the noise problem generated by the motor. However, due to the structural limitations of the shell itself, it is difficult to design a safe distance between the inner wall of the shell and the end copper wire of the motor stator, and the inner wall of the shell also needs to be installed in conjunction with the motor stator, which makes the operation complicated. Utility Model Content

[0004] Based on this, the purpose of the utility model is to overcome the shortcomings of the prior art and provide a compressor housing for fixing a motor stator. By forming a primary step difference and a secondary step difference inside the compressor housing, the motor stator is covered by a thicker secondary cylinder while improving the convenience and safety distance of the motor stator installation, thereby improving the noise problem of the compressor.

[0005] In order to achieve the above purpose, the technical solution adopted by the embodiment of the utility model is:

[0006] A compressor housing for fixing a motor stator, the motor stator comprising a coaxially arranged stator body and a stator end; the compressor housing is a cylindrical structure with an open end, the compressor housing is coaxially provided with a primary cylinder, a secondary cylinder and a shell cylinder in sequence along its axial direction from the open end, the inner diameter of the primary cylinder is larger than the inner diameter of the secondary cylinder, the inner diameter of the secondary cylinder is larger than the inner diameter of the shell cylinder, and a primary step difference is formed between the primary cylinder and the secondary cylinder, and a secondary step difference is formed between the secondary cylinder and the shell cylinder, the secondary cylinder is used to fix the stator body, and the primary cylinder is used to avoid the stator end.

[0007] As an implementation mode, the inner diameter of the primary cylinder is D1, the inner diameter of the secondary cylinder is D2, and the inner diameter of the shell cylinder is D. The relationship between the inner diameter D1 of the primary cylinder and the inner diameter D2 of the secondary cylinder satisfies: D1-D2≥3mm, and the relationship between the inner diameter D2 of the secondary cylinder and the inner diameter D of the shell cylinder satisfies: D2-D≥2mm.

[0008] As an implementation manner, the thickness of the shell cylinder is T, and the thickness T of the shell cylinder satisfies the relationship: T≥4.5mm.

[0009] As an implementation mode, the outer circumferential surfaces of the primary cylinder, the secondary cylinder and the shell cylinder are all located on the same circumferential surface.

[0010] As an implementation manner, the axial length of the secondary cylinder is equal to the axial length of the stator body, and the axial length of the primary cylinder is greater than the axial length of the stator end.

[0011] As an embodiment, the total axial length of the primary cylinder and the secondary cylinder is smaller than the axial length of the shell cylinder.

[0012] As an embodiment, the axial length of the primary cylinder is H1, the axial length of the secondary cylinder is H2, the axial length of the compressor housing is H, the relationship between the axial length H2 of the secondary cylinder and the axial length H1 of the primary cylinder satisfies: H2-H1≥15mm, and the relationship between the axial length H of the compressor housing and the axial length H1 of the primary cylinder and the axial length H2 of the secondary cylinder satisfies: H-H2-H1≥50mm.

[0013] As an embodiment, an end cover is detachably connected to one end of the compressor housing away from the opening thereof.

[0014] Compared with the conventional technology, the compressor housing for fixing the motor stator according to the embodiment of the utility model has the following beneficial effects:

[0015] The embodiment of the utility model sequentially arranges a primary cylinder, a secondary cylinder and a shell cylinder inwardly at an open end of the compressor shell, and makes the inner diameter of the primary cylinder larger than the inner diameter of the secondary cylinder, and the inner diameter of the secondary cylinder is larger than the inner diameter of the shell cylinder; in this way, the motor stator can be inserted into the compressor shell from the open end, and the end of the stator body away from the stator end is abutted at the secondary step difference, so that the installation of the motor stator is simple and quick, and the copper wire conductor on the stator end is avoided by the primary cylinder, thereby effectively ensuring the safety distance of the motor stator; on the other hand, the wall thickness of the secondary cylinder is relatively thick, so that the stator body of the motor stator can be covered by the thicker secondary cylinder, which can effectively improve the noise problem of the compressor and enhance the user experience.

[0016] In addition, an embodiment of the utility model also provides a compressor, comprising a compressor housing for fixing a motor stator as described in any of the above embodiments, and also comprising a motor stator, the motor stator comprising a stator body and a stator end coaxially arranged, an end of the stator body away from the stator end abutting against the secondary step difference, an end of the stator body adjacent to the stator end being flush with the primary step difference, and the stator end being separated from the primary cylinder.

[0017] Therefore, the compressor of the embodiment of the utility model forms a primary step difference and a secondary step difference inside the compressor housing, thereby improving the convenience and safety distance of installing the motor stator, while allowing the motor stator to be covered by a thicker secondary cylinder, thereby improving the noise problem of the compressor.

[0018] In order to better understand and implement the present invention, the present invention is described in detail below with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is one of the structural schematic diagrams of a compressor housing for fixing a motor stator according to an embodiment of the utility model;

[0020] Figure 2 This is a second structural schematic diagram of a compressor housing for fixing a motor stator according to an embodiment of the utility model;

[0021] Figure 3 This is a third structural schematic diagram of a compressor housing for fixing a motor stator according to an embodiment of the utility model;

[0022] Figure 4 for Figure 3 The cross-sectional schematic diagram along the AA direction is shown;

[0023] Figure 5 This is one of the structural schematic diagrams of the compressor of an embodiment of the utility model;

[0024] Figure 6This is the second structural schematic diagram of the compressor of the embodiment of the utility model;

[0025] Figure 7 for Figure 6 A schematic cross-sectional view along the AA direction is shown.

[0026] Explanation of the reference numerals: 10, compressor casing; 11, primary cylinder; 12, primary step difference; 13, secondary cylinder; 14, secondary step difference; 15, casing cylinder; 16, end cover; 20, motor stator; 21, stator body; 22, stator end. DETAILED DESCRIPTION

[0027] To further illustrate each embodiment, the present invention provides drawings. These drawings are part of the disclosure of the present invention, which are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention.

[0028] In the description of the present invention, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] At present, small compressors are mainly used in household environments such as indoor air conditioners and dehumidifiers, and are close to users. In order to reduce noise and improve user experience, a thicker shell is usually used to surround the motor, and the thicker shell is used to improve the noise problem generated by the motor. However, due to the structural limitations of the shell itself, it is difficult to design a safe distance between the inner wall of the shell and the end copper wire of the motor stator, and the inner wall of the shell also needs to be installed in conjunction with the motor stator, which makes the operation complicated.

[0030] In view of this, an embodiment of the utility model provides a compressor housing 10 for fixing a motor stator 20. By forming a primary step 12 and a secondary step 14 inside the compressor housing 10, the motor stator 20 is covered by a thicker secondary cylinder 13 while improving the installation convenience and safety distance of the motor stator 20, thereby improving the noise problem of the compressor.

[0031] See also Figures 1 to 7; The embodiment of the utility model provides a compressor housing 10 for fixing a motor stator 20, wherein the motor stator 20 includes a coaxially arranged stator body 21 and a stator end 22; the compressor housing 10 is a cylindrical structure with an open end, and the compressor housing 10 is coaxially provided with a primary cylinder 11, a secondary cylinder 13 and a shell cylinder 15 in sequence along its axial direction from the open end thereof, wherein the inner diameter of the primary cylinder 11 is greater than the inner diameter of the secondary cylinder 13, and the inner diameter of the secondary cylinder 13 is greater than the inner diameter of the shell cylinder 15, and a primary step difference 12 is formed between the primary cylinder 11 and the secondary cylinder 13, and a secondary step difference 14 is formed between the secondary cylinder 13 and the shell cylinder 15, and the secondary cylinder 13 is used to fix the stator body 21, and the primary cylinder 11 is used to avoid the stator end 22.

[0032] Therefore, the embodiment of the utility model sequentially provides a primary cylinder 11, a secondary cylinder 13 and a shell cylinder 15 inwardly at the open end of the compressor shell 10, and makes the inner diameter of the primary cylinder 11 larger than the inner diameter of the secondary cylinder 13, and the inner diameter of the secondary cylinder 13 larger than the inner diameter of the shell cylinder 15; in this way, the motor stator 20 can be inserted into the compressor shell 10 from the open end, and make the end of the stator body 21 away from the stator end 22 abut against the secondary step 14, so that the installation of the motor stator 20 is simple and quick, and the copper wire conductor on the stator end 22 is avoided by the primary cylinder 11, so that the safety distance of the motor stator 20 is effectively guaranteed; on the other hand, the wall thickness of the secondary cylinder 13 is relatively thick, so that the stator body 21 of the motor stator 20 can be covered by the thicker secondary cylinder 13, which can effectively improve the noise problem of the compressor and enhance the user experience.

[0033] In some embodiments of the present invention, the inner diameter of the primary cylinder 11 is D1, the inner diameter of the secondary cylinder 13 is D2, and the inner diameter of the shell cylinder 15 is D. The relationship between the inner diameter D1 of the primary cylinder 11 and the inner diameter D2 of the secondary cylinder 13 satisfies: D1-D2≥3mm, and the relationship between the inner diameter D2 of the secondary cylinder 13 and the inner diameter D of the shell cylinder 15 satisfies: D2-D≥2mm. In addition, the thickness of the shell cylinder 15 is T, and the thickness T of the shell cylinder 15 satisfies the relationship: T≥4.5mm. The thickness T of the shell cylinder 15 can be one of 4.5mm, 5mm, 5.5mm, and 6mm.

[0034] In some embodiments of the present invention, the outer circumferential surfaces of the primary cylinder 11, the secondary cylinder 13 and the shell cylinder 15 are all located on the same circumferential surface. In addition, the axial length of the secondary cylinder 13 is equal to the axial length of the stator body 21, and the axial length of the primary cylinder 11 is greater than the axial length of the stator end 22.

[0035] Furthermore, the axial length of the primary cylinder 11 is H1, the axial length of the secondary cylinder 13 is H2, the axial length of the compressor housing 10 is H, the relationship between the axial length H2 of the secondary cylinder 13 and the axial length H1 of the primary cylinder 11 satisfies: H2-H1≥15mm, and the relationship between the axial length H of the compressor housing 10 and the axial length H1 of the primary cylinder 11 and the axial length H2 of the secondary cylinder 13 satisfies: H-H2-H1≥50mm.

[0036] In some embodiments of the present invention, an end cover 16 is detachably connected to one end of the compressor housing 10 away from the opening thereof.

[0037] It should be noted that the compressor housing 10 is not limited to the above-mentioned cylindrical structure with one end open, but may also be a cylindrical structure with both ends open.

[0038] In addition, an embodiment of the utility model also provides a compressor, including a compressor housing 10 for fixing a motor stator 20 as described in any of the above embodiments, and also including a motor stator 20, wherein the motor stator 20 includes a stator body 21 and a stator end 22 arranged coaxially, and one end of the stator body 21 away from the stator end 22 abuts against the secondary step difference 14, and one end of the stator body 21 adjacent to the stator end 22 is flush with the primary step difference 12, and the stator end 22 is separated from the primary cylinder 11.

[0039] Therefore, the compressor of the embodiment of the utility model forms a primary step difference 12 and a secondary step difference 14 inside the compressor housing 10, thereby improving the installation convenience and safety distance of the motor stator 20, while allowing the motor stator 20 to be covered by the thicker secondary cylinder 13, thereby improving the noise problem of the compressor.

[0040] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the compressor housing and compressor used to fix the motor stator of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A compressor housing for fixing a motor stator, wherein the motor stator comprises a stator body and a stator end portion arranged coaxially; characterized in that: The compressor housing is a cylindrical structure with an open end. The compressor housing is coaxially provided with a primary cylinder, a secondary cylinder and a shell cylinder in sequence along its axial direction from the open end. The inner diameter of the primary cylinder is larger than the inner diameter of the secondary cylinder, the inner diameter of the secondary cylinder is larger than the inner diameter of the shell cylinder, and a primary step difference is formed between the primary cylinder and the secondary cylinder, and a secondary step difference is formed between the secondary cylinder and the shell cylinder. The secondary cylinder is used to fix the stator body, and the primary cylinder is used to avoid the stator end.

2. The compressor housing for fixing a motor stator according to claim 1, characterized in that: The inner diameter of the primary cylinder is D1, the inner diameter of the secondary cylinder is D2, and the inner diameter of the shell cylinder is D. The relationship between the inner diameter D1 of the primary cylinder and the inner diameter D2 of the secondary cylinder satisfies: D1-D2≥3mm, and the relationship between the inner diameter D2 of the secondary cylinder and the inner diameter D of the shell cylinder satisfies: D2-D≥2mm.

3. The compressor housing for fixing a motor stator according to claim 1, characterized in that: The thickness of the shell cylinder is T, and the thickness T of the shell cylinder satisfies the relationship: T≥4.5mm.

4. The compressor housing for fixing a motor stator according to claim 1, characterized in that: The outer circumferential surfaces of the primary cylinder, the secondary cylinder and the shell cylinder are all located on the same circumferential surface.

5. The compressor housing for fixing a motor stator according to claim 1, characterized in that: The axial length of the secondary cylinder is equal to the axial length of the stator body, and the axial length of the primary cylinder is greater than the axial length of the stator end.

6. The compressor housing for fixing a motor stator according to claim 2, characterized in that: The total axial length of the primary cylinder and the secondary cylinder is smaller than the axial length of the shell cylinder.

7. The compressor housing for fixing a motor stator according to claim 6, characterized in that: The axial length of the primary cylinder is H1, the axial length of the secondary cylinder is H2, the axial length of the compressor housing is H, the relationship between the axial length H2 of the secondary cylinder and the axial length H1 of the primary cylinder satisfies: H2-H1≥15mm, and the relationship between the axial length H of the compressor housing and the axial length H1 of the primary cylinder and the axial length H2 of the secondary cylinder satisfies: H-H2-H1≥50mm.

8. The compressor housing for fixing a motor stator according to claim 1, characterized in that: An end cover is detachably connected to one end of the compressor housing away from the opening thereof.

9. A compressor, characterized in that: A compressor housing for fixing a motor stator as described in any one of claims 1 to 8, and also a motor stator, wherein the motor stator includes a stator body and a stator end which are coaxially arranged, an end of the stator body away from the stator end abuts against the secondary step difference, an end of the stator body adjacent to the stator end is flush with the primary step difference, and the stator end is separated from the primary cylinder.

Images