Motor stator assembly for compressor and refrigerator compressor

Abstract

The utility model belongs to the technical field of refrigerator compressors, and particularly discloses a motor stator assembly for a compressor and a refrigerator compressor. According to the motor stator assembly for the compressor, one end of a suspension spring is connected to an assembling groove of any one supporting lug on one side of the outer wall of a stator framework, and the other end of the suspension spring is connected to an assembling groove of any one supporting lug on the other side of the outer wall of the stator framework. The motor stator assembly for the compressor is applied to a refrigerator compressor, and when motors with different stack thicknesses are assembled on the compressor, only suspension springs of the same model need to be adapted, and according to the immersion depth of a crankshaft and an oil suction pipe, one end of each suspension spring is adjusted to be connected with an assembly groove of a certain supporting lug on one side of the outer wall of the stator framework; the other end of the adjusting suspension spring is connected with an assembling groove of a certain supporting lug on the other side of the outer wall of the stator framework. Therefore, the universality of the suspension spring part is improved, the material changing procedure in the production and assembly process is reduced, and the material mixing risk is also avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of refrigerator compressors and relates to a motor stator assembly for a compressor and a refrigerator compressor. Background Art

[0002] The compressor is a key component of refrigerator and other refrigeration systems. The motor drives the crankshaft to rotate, and then drives the piston to reciprocate in the cylinder through the transmission of the connecting rod. With the cooperation of the suction and exhaust valves, the refrigerant is sucked, compressed and transported. The efficiency of the compressor is mainly composed of thermal efficiency, mechanical efficiency, gas path efficiency and motor efficiency. The motor efficiency of motors with different stacking thicknesses is different. In order to meet the needs of different customers for the efficiency of compressor motors, the compressor is equipped with motors of different stacking thicknesses. In addition, in order to assemble the oil suction pipe, a suspension spring mounting hole is set on the motor frame to install the suspension spring, and then fix the core of the oil suction pipe. However, when the compressor is equipped with motors of different stacking thicknesses, different types of suspension springs need to be adapted and replaced to match the immersion depth of the crankshaft and the oil suction pipe. There are many types of suspension springs and there is no obvious difference in appearance. There is a risk of mixing materials during the actual production and assembly process. Utility Model Content

[0003] The utility model aims to provide a motor stator assembly for a compressor and a refrigerator compressor, so that motors with different stacking thicknesses can be adapted to the same type of suspension springs.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A motor stator assembly for a compressor comprises a stator frame, a stator winding and a suspension spring;

[0006] The stator frame is configured as a ring structure;

[0007] The inner wall of the stator frame is provided with a plurality of winding teeth along the circumferential direction, the plurality of winding teeth are arranged at equal intervals, and the stator winding is arranged between the winding teeth;

[0008] At least two supporting ears are arranged along the longitudinal direction on one side of the outer wall of the stator frame, and at least two supporting ears are arranged along the longitudinal direction on the other side of the outer wall of the stator frame;

[0009] The supporting ears are provided with assembly grooves;

[0010] One end of the suspension spring is connected to the assembly slot of any one supporting ear on one side of the outer wall of the stator frame, and the other end of the suspension spring is connected to the assembly slot of any one supporting ear on the other side of the outer wall of the stator frame.

[0011] Preferably, at least two supporting ears on the same side of the outer wall of the stator frame are in the same vertical direction, and the vertical line is parallel to the axis of the stator frame.

[0012] Preferably, at least two supporting ears on the same side of the outer wall of the stator frame are not located in the same vertical direction, and the vertical line is parallel to the axis of the stator frame.

[0013] Preferably, a line connecting two supporting ears connected to two ends of the suspension spring passes through the axis of the stator frame.

[0014] Preferably, the two supporting ears connected to the two ends of the suspension spring are at the same horizontal position.

[0015] Preferably, the assembly groove is located on the upper surface of the supporting ear, the assembly groove extends to the end of the supporting ear, and the portion of the assembly groove located at the end of the supporting ear is an open structure.

[0016] Preferably, the outer wall of the stator frame is provided with a wire-passing fixing column.

[0017] Preferably, a lead wire fixing clip is provided on the outer wall of the stator frame.

[0018] Preferably, the stator frame is integrally injection-molded from polytrimethylene terephthalate material.

[0019] A refrigerator compressor, wherein the motor of the refrigerator compressor is provided with the above-mentioned compressor motor stator assembly.

[0020] Compared with the prior art, the utility model has the following beneficial effects:

[0021] As described above, the utility model relates to a motor stator assembly for a compressor, which is applied to a refrigerator compressor. When the compressor is assembled with motors of different stacking thicknesses, it is only necessary to adapt the same type of suspension spring. According to the immersion depth of the crankshaft and the oil suction pipe, one end of the suspension spring is adjusted to connect to the assembly groove of a supporting ear on one side of the outer wall of the stator frame, and the other end of the suspension spring is adjusted to connect to the assembly groove of a supporting ear on the other side of the outer wall of the stator frame. In this way, the versatility of the suspension spring parts is improved, the material replacement process in the production and assembly process is reduced, and the risk of mixing materials is avoided. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0023] Figure 1 This is a three-dimensional diagram of a stator frame in a stator assembly of a motor for a compressor according to an embodiment of the utility model;

[0024] Figure 2 A top view of a stator frame in a stator assembly of a motor for a compressor according to an embodiment of the utility model;

[0025] Figure 3 This is a bottom view of a stator frame in a stator assembly of a motor for a compressor according to an embodiment of the utility model;

[0026] Figure 4 This is a front view of a stator frame in a stator assembly of a motor for a compressor according to an embodiment of the utility model;

[0027] Figure 5 This is a rear view of a stator frame in a stator assembly of a motor for a compressor according to an embodiment of the utility model;

[0028] Figure 6 The utility model is an embodiment of the assembly of the stator frame and the suspension spring in the compressor motor stator assembly Figure 1 ;

[0029] Figure 7 The utility model is an embodiment of the assembly of the stator frame and the suspension spring in the compressor motor stator assembly Figure 2 . DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0031] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0032] It should be noted that all directional indications in the embodiments of the present invention (such as up, down, left, right, front, back...) are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0033] In addition, in the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] In addition, the technical solutions between the various embodiments of the present invention can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0036] Embodiment 1:

[0037] like Figures 1 to 7 As shown, the stator assembly of the motor for the compressor in this embodiment includes a stator frame 1, a stator winding and a suspension spring 2.

[0038] The stator frame 1 is configured as an annular structure, and nine winding teeth 11 are arranged on the inner wall of the stator frame 1 along the circumferential direction. The nine winding teeth 11 are arranged at equal intervals, and the end of each winding tooth 11 faces the axis of the stator frame. The stator winding is arranged between the winding teeth 11, wherein the stator winding in this embodiment is wound by enameled wire (made of copper wire or aluminum wire).

[0039] At least two support ears 12 are arranged along the longitudinal direction on one side of the outer wall of the stator frame 1, and at least two support ears 12 are arranged along the longitudinal direction on the other side of the outer wall of the stator frame 1. In this embodiment, four support ears 12 are arranged on the same side of the outer wall of the stator frame 1.

[0040] Each supporting ear 12 is provided with an assembly groove 121 , and the assembly groove 121 is used for assembly connection with the end of the suspension spring 2 .

[0041] One end of the suspension spring 2 is connected to the assembly groove 121 of any supporting ear 12 on one side of the outer wall of the stator frame 1, and the other end of the suspension spring 2 is connected to the assembly groove 121 of any supporting ear 12 on the other side of the outer wall of the stator frame 1, and the middle protrusion of the suspension spring 2 is assembled with the tube core of the oil suction pipe 3.

[0042] The assembly groove 121 is located on the upper surface of the support ear 12, and the assembly groove 121 extends to the end of the support ear 12. The end of the support ear 12 is far away from the axis of the stator frame 1, and the portion of the assembly groove 121 located at the end of the support ear 12 is an open structure. In this way, during assembly, the two ends of the suspension spring 2 are spread outward, and the end of the suspension spring 2 abuts against the open structure, and resets under the elastic force of the suspension spring 2 itself, and the end of the suspension spring 2 is embedded in the assembly groove 121, so as to facilitate the assembly of the assembly groove 121 and the end of the suspension spring 2.

[0043] In this embodiment, at least two supporting ears 12 on the same side of the outer wall of the stator frame 1 are located in the same vertical direction, and the vertical line is parallel to the axis of the stator frame 1 .

[0044] Specifically, the four supporting ears 12 on the front side of the outer wall of the stator frame 1 are in the same vertical direction, and a gap of 5 mm is left between two adjacent supporting ears 12 in the longitudinal direction; the four supporting ears 12 on the rear side of the outer wall of the stator frame 1 are in the same vertical direction, and a gap of 5 mm is left between two adjacent supporting ears 12 in the longitudinal direction. In this way, when assembling the suspension spring 2, the two ends of the suspension spring 2 itself can be an axisymmetric structure or a non-axisymmetric structure, so that the end of the suspension spring 2 can be assembled and connected to the assembly groove 121 of any height. For example, when the two ends of the suspension spring 2 itself are axisymmetric structures, one end of the suspension spring 2 is assembled and connected to the assembly groove 121 of the uppermost supporting ear 12 on the front side, and the other end of the suspension spring 2 is also assembled and connected to the assembly groove 121 of the uppermost supporting ear 12 on the rear side; when the two ends of the suspension spring 2 itself are non-axisymmetric structures, one end of the suspension spring 2 is assembled and connected to the assembly groove 121 of the uppermost supporting ear 12 on the front side, and the other end of the suspension spring 2 is also assembled and connected to the assembly groove 121 of the lowermost supporting ear 12 on the rear side.

[0045] The line between the two supporting ears 12 connected to the two ends of the suspension spring 2 passes through the axis of the stator frame 1. At this time, the span of the suspension spring 2 is the largest, corresponding to the diameter of the stator frame 1, so that the elastic force of the suspension spring 2 itself is the largest, so that the end of the suspension spring 2 and the assembly groove 121 are assembled more firmly.

[0046] The two supporting ears 12 connected to the two ends of the suspension spring 2 are at the same horizontal position, corresponding to the suspension spring 2 with an axisymmetric structure at both ends.

[0047] The outer wall of the stator frame 1 is provided with four wire-passing fixing columns 13 for fixing the enameled wire of the stator winding. The outer wall of the stator frame 1 is provided with a lead-out fixing clamp 14 for fixing the lead-out wire of the stator winding.

[0048] The stator frame 1 is integrally injection-molded from polytrimethylene terephthalate (PPT) material, which is easy to manufacture and has good mechanical properties.

[0049] A refrigerator compressor, the motor of which is provided with the compressor motor stator assembly described in the embodiment.

[0050] Embodiment 2:

[0051] The difference between this embodiment and the first embodiment is that at least two supporting ears 12 on the same side of the outer wall of the stator frame 1 are not in the same vertical direction, and the vertical line is parallel to the axis of the stator frame 1. For example, the four supporting ears 12 on the same side of the outer wall of the stator frame 1 are not in the same vertical direction. In this way, there is no need to leave a gap between adjacent supporting ears 12 in the longitudinal direction, so that more supporting ears 12 can be arranged at a limited longitudinal distance between the supporting ears 12.

[0052] So far, the present embodiment has been described in detail in conjunction with the accompanying drawings. Based on the above description, those skilled in the art should have a clear understanding of the motor stator assembly for compressors and refrigerator compressor devices of the utility model. The motor stator assembly for compressors of the utility model is applied to refrigerator compressors. When the compressor is equipped with motors of different stacking thicknesses, it is only necessary to adapt the same type of suspension spring 2. According to the immersion depth of the crankshaft and the oil suction pipe 3, one end of the suspension spring 2 is adjusted to connect to the assembly groove 121 of a certain support ear 12 on one side of the outer wall of the stator skeleton 1, and the other end of the suspension spring 2 is adjusted to connect to the assembly groove 121 of a certain support ear 12 on the other side of the outer wall of the stator skeleton 1; in this way, the versatility of the parts of the suspension spring 2 is improved, the material replacement process in the production and assembly process is reduced, and the risk of mixing is avoided.

[0053] Of course, the above description is only a preferred embodiment of the utility model, and does not limit the patent scope of the utility model. All equivalent structural changes made by using the contents of the utility model specification and drawings under the utility model concept of the utility model, or direct / indirect application in other related technical fields are included in the patent protection scope of the utility model and should be protected by the utility model.

Claims

1. A motor stator assembly for a compressor, comprising a stator frame, a stator winding and a suspension spring; characterized in that: The stator frame is configured as a ring structure; The inner wall of the stator frame is provided with a plurality of winding teeth along the circumferential direction, the plurality of winding teeth are arranged at equal intervals, and the stator winding is arranged between the winding teeth; At least two supporting ears are arranged along the longitudinal direction on one side of the outer wall of the stator frame, and at least two supporting ears are arranged along the longitudinal direction on the other side of the outer wall of the stator frame; The supporting ears are provided with assembly grooves; One end of the suspension spring is connected to the assembly slot of any one supporting ear on one side of the outer wall of the stator frame, and the other end of the suspension spring is connected to the assembly slot of any one supporting ear on the other side of the outer wall of the stator frame.

2. The compressor motor stator assembly according to claim 1, characterized in that: At least two supporting ears on the same side of the outer wall of the stator frame are located in the same vertical direction, and the vertical line is parallel to the axis of the stator frame.

3. The compressor motor stator assembly according to claim 1, characterized in that: At least two supporting ears on the same side of the outer wall of the stator frame are not located in the same vertical direction, and the vertical line is parallel to the axis of the stator frame.

4. The compressor motor stator assembly according to any one of claims 1 to 3, characterized in that: The connecting line between the two supporting ears connected to the two ends of the suspension spring passes through the axis of the stator frame.

5. The compressor motor stator assembly according to claim 4, characterized in that: The two supporting ears connected at both ends of the suspension spring are at the same horizontal position.

6. The compressor motor stator assembly according to claim 1, characterized in that: The assembly groove is located on the upper surface of the supporting ear, and the assembly groove extends to the end of the supporting ear. The portion of the assembly groove located at the end of the supporting ear is an open structure.

7. The compressor motor stator assembly according to claim 1, characterized in that: The outer wall of the stator frame is provided with a wire passing fixing column.

8. The compressor motor stator assembly according to claim 1, characterized in that: The outer wall of the stator frame is provided with a lead wire fixing clip.

9. The compressor motor stator assembly according to claim 1, characterized in that: The stator frame is integrally injection-molded from polytrimethylene terephthalate material.

10. A refrigerator compressor, characterized in that: The motor of the refrigerator compressor is provided with the compressor motor stator assembly according to any one of claims 1 to 9.

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