Stator insulation framework, air conditioner compressor and vehicle

Abstract

The utility model relates to the technical field of motors, and particularly discloses a stator insulation framework, an air conditioner compressor and a vehicle, and the stator insulation framework comprises a framework body and a plurality of structural rib assemblies. The structural strength of the framework body is smaller than that of the stator inner iron core, so that when the framework body is pressed into the stator inner iron core, the framework body deforms. The plurality of structural rib assemblies are divided into two symmetrical parts by the symmetrical surfaces, and the heights of the plurality of structural rib assemblies are gradually reduced in the extending direction of the symmetrical surfaces towards the mounting hole, so that the positions and heights of the different structural rib assemblies are different, and when the inner iron core of the stator is pressed, the structural rib assemblies are not damaged. According to the stator insulation framework, each structural rib component is uniformly stressed with the stator inner iron core, the magnitude of interference between the framework body and the stator inner iron core is ensured to be close, the structural strength of the framework body is ensured, the framework body is not easy to loosen, and the problem that the structural ribs of the stator insulation framework in the prior art are not stressed or have the risk of crushing is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to motor technical field especially relates to a stator insulation framework, air conditioner compressor and vehicle. BACKGROUND

[0002] At present, the stator framework design is through interference or transition mode to press the stator core, and the structure strength of the stator framework in the prior art is low, when the stator inner core is pressed, it is easy to appear loose, and then the up-down deviation of the stator framework is aggravated, which leads to the deviation of the whole coil winding, affects the product output performance, and also affects the installation of the rear end shell, and the structure rib in the stator framework in the prior art does not fully consider the deformation problem after the assembly of the stator framework, so that the interference amount of each structure rib is uneven, and there is a risk of crushing of part of the structure rib. SUMMARY

[0003] The utility model discloses a kind of stator insulation frameworks, air conditioner compressors and vehicles, to solve the problem that structure rib exists in the stator insulation framework in the prior art without force or crushing risk.

[0004] In one aspect, the utility model provides a kind of stator insulation frameworks, which comprises: framework body, with mounting hole, the mounting hole can and stator inner core press pack;Multiple structure rib assemblies are spaced apart on the inner wall of the mounting hole along the extension direction of the mounting hole, and multiple structure rib assemblies can be abutted with the stator inner core;Wherein, the framework body has symmetry plane, the symmetry plane divides multiple structure rib assemblies into two parts symmetrically, and the height of multiple structure rib assemblies gradually decreases along the extension direction of the mounting hole along the symmetry plane.

[0005] As an optional technical solution of the stator insulation framework, the height of one structure rib assembly is H1, the stiffness is K1, and the pressure between the stator inner core is F1, F1=K1×H1, the height of adjacent structure rib assembly is H2, the stiffness is K2, and the pressure between the stator inner core is F2, F2=K2×H2;

[0006] Wherein, F1=F2, then, H2=H1 (K1 / K2).

[0007] As an optional technical solution of the stator insulation framework, the cross-sectional shape of the structure rib assembly is rectangular or circular arc or sawtooth shape.

[0008] As an optional technical solution of the stator insulation framework, the distance between adjacent two structure rib assemblies is 1mm-7mm.

[0009] As an optional technical solution of the stator insulation framework, the structural rib assembly comprises a first structural rib and a second structural rib, the first structural rib and the second structural rib are correspondingly arranged on the inner wall of the mounting hole, and both abut against the stator inner core, and the first structural rib and the second structural rib extend along the pressing direction of the stator inner core.

[0010] As an optional technical solution of the stator insulation framework, the structural strength of the structural rib assembly is greater than or equal to the structural strength of the framework body.

[0011] As an optional technical solution of the stator insulation framework, in the pressing direction of the stator inner core, the mounting hole is arranged through the framework body, and a round chamfer is arranged at the intersection between the side wall of the mounting hole and the framework body.

[0012] As an optional technical solution of the stator insulation framework, the framework body has an inner side wall facing one side of the axis of the stator inner core and an outer side wall facing away from the other side of the axis of the stator inner core, and the inner side wall and the outer side wall form a winding slot around the framework body.

[0013] In another aspect, the utility model provides a kind of air conditioner compressor, including stator inner core, stator winding and multiple stator insulation frameworks in any of the above solutions, multiple stator insulation frameworks are pressed in the stator inner core along the circumferential direction of the stator inner core, and the stator winding is wound on the winding slot of the stator insulation framework.

[0014] In yet another aspect, the utility model provides a kind of vehicle, including vehicle body and air conditioner compressor in any of the above solutions, and the air conditioner compressor is installed in the vehicle body.

[0015] The utility model has the advantages that:

[0016] The utility model provides a kind of stator insulation framework, which comprises a framework body and a plurality of structural rib assemblies.The framework body has a mounting hole that can be pressed into the stator inner core.The structural strength of the framework body is less than that of the stator inner core, so when the framework body is pressed into the stator inner core, it will deform.The stator insulation framework of the utility model has a symmetrical plane, which divides the plurality of structural rib assemblies into two symmetrical parts.The height of the plurality of structural rib assemblies gradually decreases along the extension direction of the mounting hole.This arrangement ensures that the force between each structural rib assembly and the stator inner core is uniform when pressing the stator inner core, and the interference between the framework body and the stator inner core is close, thereby ensuring the structural strength of the framework body and preventing it from loosening.The problem of structural ribs in the prior art stator insulation framework being under stress or at risk of crushing is effectively solved. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a structure schematic view of the stator insulation framework in the embodiment of the utility model;

[0018] Fig. 2 It is a structure schematic view of the stator insulation framework in another angle in the embodiment of the utility model;

[0019] Fig. 3 It is a structure schematic view of the stator insulation framework in still another angle in the embodiment of the utility model.

[0020] In the drawing:

[0021] 1, framework body;11, mounting hole;111, round chamfer;12, symmetry plane;13, inner side wall;14, outer side wall;15, winding groove;

[0022] 2, structural rib assembly;21, first structural rib;22, second structural rib. DETAILED DESCRIPTION

[0023] The technical scheme of the utility model will be described clearly and completely in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without creative labor belong to the scope of protection of the utility model.

[0024] In the description of the utility model, it is necessary to explain that the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance. Among them, the terms "first position" and "second position" are two different positions, and moreover, the first feature is "above", "above" and "above" of the second feature, which includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature is "below", "below" and "below" of the second feature, which includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0025] In the description of the utility model, it is necessary to explain that, unless there is definite stipulation and limitation, the term "installation", "connection" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected;Can be mechanical connection, also can be electrical connection;Can be directly connected, also can be indirectly connected through intermediate medium, can be two elements inside the communication.For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to the specific circumstances.

[0026] The embodiments of the utility model are described in detail below, the examples of the embodiments are shown in the drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions throughout the drawings.The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0027] As Figs. 1-3 As shown in the utility model provides a kind of stator insulation framework, the stator insulation framework includes framework body 1 and multiple structural rib assemblies 2.Framework body 1 has mounting hole 11, mounting hole 11 can be and stator inner core press fitting;Multiple structural rib assemblies 2 are spaced apart on the inner wall of mounting hole 11 along the extension direction of mounting hole 11, multiple structural rib assemblies 2 can be all contacted with stator inner core;Wherein, framework body 1 has symmetry plane 12, symmetry plane 12 divides multiple structural rib assemblies 2 into two symmetrical parts, along the extension direction of mounting hole 11 to symmetry plane 12, the height of multiple structural rib assemblies 2 gradually decreases.

[0028] Since the structural strength of framework body 1 is less than the structural strength of stator inner core, when framework body 1 is pressed into stator inner core, framework body 1 will be deformed.The stator insulation framework of the utility model, framework body 1 has symmetry plane 12, wherein, symmetry plane 12 divides multiple structural rib assemblies 2 into two symmetrical parts, along the extension direction of mounting hole 11 to symmetry plane 12, the height of multiple structural rib assemblies 2 gradually decreases, so set, by the position and height difference of different structural rib assemblies 2, ensure that when press fitting stator inner core, the stress between each structural rib assembly 2 and stator inner core is uniform, ensure that the interference between framework body 1 and stator inner core is close, so as to ensure the structural strength of framework body 1, and not easy to loosen, effectively solve the problem that structural rib of the stator insulation framework in the prior art is not stressed or has crushing risk.

[0029] In some embodiments, a structural rib assembly 2 has a height of H1, a stiffness of K1, and a pressure of F1 between it and the stator core, where F1 = K1 × H1; and an adjacent structural rib assembly 2 has a height of H2, a stiffness of K2, and a pressure of F2 between it and the stator core, where F2 = K2 × H2; wherein, assuming F1 = F2, then H2 = H1(K1 / K2). H1, K1, F1, K2, and F2 are all known values.

[0030] It should be noted that the pressure between the structural rib assembly 2 and the stator inner core is the pressure between the mating surfaces after the interference fit.

[0031] Similarly, the height of the other structural rib components 2 can be deduced in the same way.

[0032] In this embodiment, as Fig. 2 As shown, the cross-sectional shape of the structural rib assembly 2 is rectangular, which ensures full contact with the iron core inside the stator, thereby improving the uniformity of stress on the frame body 1.

[0033] Alternatively, in embodiments not shown in the figures, the cross-sectional shape of the structural rib assembly 2 may include, but is not limited to, an arc shape or a sawtooth shape.

[0034] Specifically, the distance between two adjacent structural rib assemblies is 1mm-7mm. This setting ensures that the distance between adjacent structural rib assemblies remains within a suitable range, resulting in uniform stress distribution between the multiple structural rib assemblies and the stator core. The distance between two adjacent structural rib assemblies can be selected according to actual needs, and can be 1mm, 2mm, 3mm, 4mm, 5mm, 6mm, or 7mm, etc. In this scheme, the distance between two adjacent structural rib assemblies is 4mm.

[0035] In this embodiment, the structural rib assembly 2 includes a first structural rib 21 and a second structural rib 22. The first structural rib 21 and the second structural rib 22 are respectively disposed on the inner wall of the mounting hole 11 and both abut against the stator inner core, thus ensuring contact with the stator inner core from both sides and guaranteeing the stability of the press-fitting process. Furthermore, the first structural rib 21 and the second structural rib 22 extend along the press-fitting direction of the stator inner core. This arrangement increases the contact area between the first structural rib 21 and the second structural rib 22 and the stator inner core, further ensuring the stability of the press-fitting process.

[0036] In some embodiments, the structural strength of the structural rib assembly 2 is greater than or equal to the structural strength of the frame body 1. Specifically, the materials of both the structural rib assembly 2 and the frame body 1 can be selected as PPS-GF40, PPS-GF50, PPS-GF60, or PBT; or, if the structural rib assembly 2 and the frame body 1 are made of different materials, the structural strength of the rib is greater than that of the frame body, wherein the selection is based on the mechanical property table of the materials, for example: material strength PBT-GF30 < PPS-GF30 < PPS-GF40. Depending on the actual needs on site, the material of the frame body 1 can be selected as PPS-GF40, PPS-GF50, PPS-GF60, or PBT as needed. In this solution, both the structural rib assembly 2 and the frame body 1 are selected as PPS, which simultaneously ensures the insulation performance, structural strength, and heat resistance of both the structural rib assembly 2 and the frame body 1.

[0037] For the material of the skeleton body 1, PBT can be used if economic efficiency is a consideration, and PPS-GF50 or PPS-GF60 can be used if better strength is a consideration.

[0038] It should be noted that PPS (polyphenylene sulfide) is a new type of high-performance thermoplastic resin with advantages such as high mechanical strength, high temperature resistance, chemical resistance, flame retardancy, good thermal stability, and excellent electrical properties.

[0039] PBT (polybutylene terephthalate) has the advantages of high rigidity and hardness, good heat resistance, good surface gloss, fast crystallization speed, excellent formability, and good thermal stability.

[0040] PPS-GF40 is a high-performance thermoplastic, specifically referring to polyphenylene sulfide (PPS) reinforced with 40% glass fiber (GF). This material exhibits high strength, high rigidity, and excellent thermochemical resistance.

[0041] PPS-GF50 is a high-performance thermoplastic, specifically referring to polyphenylene sulfide (PPS) with 50% glass fiber (GF) reinforcement.

[0042] PPS-GF60 is a high-performance thermoplastic, specifically referring to polyphenylene sulfide (PPS) with 60% glass fiber (GF) reinforcement.

[0043] Specifically, in the press-fitting direction of the stator inner core, the mounting hole 11 penetrates the frame body 1, and a rounded chamfer 111 is provided at the junction of the side wall of the mounting hole 11 and the frame body 1. This arrangement ensures that when the frame body 1 is assembled into the stator inner core, it can fit tightly with the stator core, improving assembly stability and structural strength.

[0044] In some embodiments, the frame body 1 has an inner sidewall 13 facing the axis of the stator inner core and an outer sidewall 14 facing away from the axis of the stator inner core, with a winding groove 15 forming a circle around the frame body 1 between the inner sidewall 13 and the outer sidewall 14. This arrangement facilitates the assembly of the stator winding.

[0045] This embodiment also provides an air conditioning compressor, including an inner stator core, a stator winding, and multiple stator insulating frames as described above. The multiple stator insulating frames are press-fitted onto the inner stator core along the circumference of the inner stator core, and the stator winding is wound on the winding slots 15 of the stator insulating frames.

[0046] This embodiment also provides a vehicle, including a vehicle body and an air conditioning compressor as described above, with the air conditioning compressor installed on the vehicle body. In the vehicle using this invention, the frame body 1 has a symmetrical plane 12, which divides multiple structural rib assemblies 2 into two symmetrical parts. Along the extension direction of the symmetrical plane 12 towards the mounting hole 11, the height of the multiple structural rib assemblies 2 gradually decreases. This arrangement, through the differences in position and height of the different structural rib assemblies 2, ensures uniform stress between each structural rib assembly 2 and the stator inner core during press-fitting, ensuring that the interference fit between the frame body 1 and the stator inner core is close, thereby ensuring the structural strength of the frame body 1 and preventing loosening. This effectively solves the problem in the prior art where the structural ribs of the stator insulation frame are not stressed or are at risk of crushing.

[0047] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A stator insulation frame, characterized in that, include: The frame body (1) has a mounting hole (11) which can be press-fitted with the inner core of the stator; Multiple structural rib assemblies (2) are spaced apart on the inner wall of the mounting hole (11) along the extending direction of the mounting hole (11), and all of the multiple structural rib assemblies (2) can abut against the inner core of the stator; The skeleton body (1) has a symmetry plane (12), which divides the plurality of structural rib assemblies (2) into two symmetrical parts. The height of the plurality of structural rib assemblies (2) gradually decreases along the extension direction of the symmetry plane (12) toward the mounting hole (11).

2. The stator insulation frame according to claim 1, characterized in that, The height of one of the structural rib assemblies (2) is H1, the stiffness is K1, and the pressure between it and the inner core of the stator is F1, F1 = K1 × H1. The height of an adjacent structural rib assembly (2) is H2, the stiffness is K2, and the pressure between it and the inner core of the stator is F2, F2 = K2 × H2. Where F1 = F2, then H2 = H1(K1 / K2).

3. The stator insulation frame according to claim 1, characterized in that, The cross-sectional shape of the structural rib assembly (2) is rectangular, circular, or sawtooth.

4. The stator insulation frame according to claim 1, characterized in that, The distance between two adjacent structural rib components (2) is 1mm-7mm.

5. The stator insulation frame according to claim 1, characterized in that, The structural rib assembly (2) includes a first structural rib (21) and a second structural rib (22). The first structural rib (21) and the second structural rib (22) are respectively disposed on the inner wall of the mounting hole (11) and both abut against the inner core of the stator. The first structural rib (21) and the second structural rib (22) extend along the pressing direction of the inner core of the stator.

6. The stator insulation frame according to claim 1, characterized in that, The structural strength of the structural rib assembly (2) is greater than or equal to the structural strength of the skeleton body (1).

7. The stator insulation frame according to claim 1, characterized in that, In the pressing direction of the inner core of the stator, the mounting hole (11) is provided through the skeleton body (1), and the junction of the side wall of the mounting hole (11) and the skeleton body (1) is provided with a rounded chamfer (111).

8. The stator insulation frame according to claim 1, characterized in that, The skeleton body (1) has an inner sidewall (13) facing the axis of the stator inner core and an outer sidewall (14) away from the axis of the stator inner core, and a winding groove (15) is formed between the inner sidewall (13) and the outer sidewall (14) to surround the skeleton body (1).

9. An air conditioning compressor, characterized in that, It includes a stator inner core, a stator winding, and a plurality of stator insulating frames as described in any one of claims 1-8, wherein the plurality of stator insulating frames are press-fitted onto the stator inner core along the circumference of the stator inner core, and the stator winding is wound on the winding slots (15) of the stator insulating frames.

10. A vehicle, characterized in that, It includes a vehicle body and an air conditioning compressor as described in claim 9, wherein the air conditioning compressor is installed on the vehicle body.

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