Insulating frame, motor and compressor

Abstract

This invention provides an insulating frame, a motor, and a compressor. The insulating frame includes a first frame and a second frame. The first frame includes a first yoke and a plurality of first teeth. The first yoke is configured to correspond to the core yoke of the stator core, and the plurality of first teeth are configured to correspond one-to-one with the plurality of core teeth of the stator core. The first yoke is disposed at a first end of the stator core. The second frame is disposed at a second end of the stator core. A first channel is provided on the first yoke, and a third channel is provided on the second frame. At least one first tooth is provided with a second channel. A coolant inlet is provided in the first channel, and a coolant outlet is connected to the coolant inlet of the second channel. The coolant outlet of the second channel is connected to the coolant inlet of the third channel, and the coolant in the third channel flows out through its outlet. The coolant flowing through the second channel is used to cool the stator winding.

Description

Technical Field

[0001] This invention relates to the field of motor technology, and more specifically, to an insulating frame, a motor, and a compressor. Background Technology

[0002] An electric motor consists of two main components: the stator and the rotor. The motor stator is generally insulated using an insulating frame. The insulating frame is an injection-molded part that is installed at the end of the motor stator and has a wire-passing structure design.

[0003] The existing motor stator windings have poor heat dissipation.

[0004] The permanent magnet synchronous motor of the compressor generates a lot of heat when it is working. If the heat dissipation of the motor stator winding is poor, or if the motor stator winding cannot dissipate heat in time, the internal temperature of the motor will rise, thereby reducing the efficiency and service life of the motor. Summary of the Invention

[0005] The main objective of this invention is to provide an insulating frame, a motor, and a compressor to solve the problem of poor heat dissipation of stator windings in the prior art.

[0006] To achieve the above objectives, according to one aspect of the present invention, an insulating frame is provided, comprising: a first frame including a first yoke and a plurality of first teeth; the first yoke being configured corresponding to a core yoke of a stator core, and the plurality of first teeth being configured corresponding one-to-one with a plurality of core teeth of the stator core, such that each first tooth covers a corresponding core tooth; the first yoke being disposed at a first end of the stator core; and a second frame being disposed at a second end of the stator core; wherein the first yoke is provided with a first channel portion, and the second frame is provided with a third channel portion; at least one first tooth is provided with a second channel portion; the inlet portion of the first channel portion is used to introduce coolant, the outlet portion of the first channel portion is connected to the inlet portion of the second channel portion, the outlet portion of the second channel portion is connected to the inlet portion of the third channel portion, and the coolant in the third channel portion flows out through its outlet portion; the coolant flowing through the second channel portion is used to cool the stator winding.

[0007] Furthermore, each of the first teeth is provided with a second channel section.

[0008] Furthermore, the direction from the first end to the second end of the first tooth is the same as the direction from the first end to the second end of the stator core; along the circumference of the first frame, the first tooth has two oppositely arranged side surfaces; the second channel includes: a second connecting channel disposed on the first end face of the first tooth; the liquid inlet of the second connecting channel is connected to the liquid outlet of the first channel; an elongated guide groove is disposed on the side surface of the first tooth; the liquid inlet of the guide groove is connected to the liquid outlet of the second connecting channel, and the liquid outlet of the guide groove is connected to the liquid inlet of the third channel.

[0009] Furthermore, a guide groove is provided on at least one side of the first tooth.

[0010] Furthermore, one or more guide grooves are provided on the side of the first tooth.

[0011] Furthermore, the cross-section of the guide groove perpendicular to its extension direction is a polygon or a portion of a pre-defined circle.

[0012] Furthermore, the extension direction of the guide groove is parallel to or at an acute angle to the length direction of the first tooth.

[0013] Furthermore, the inlet and outlet ends of the guide groove extend to the first and second end faces of the first tooth, respectively.

[0014] Furthermore, the second connecting channel includes a first section and a second section arranged at an angle; the first end of the first section forms the liquid inlet of the second connecting channel, and the second end of the first section is closed; the first end of the second section is connected to the first section, and the second end of the second section forms the liquid outlet of the second connecting channel; each guide groove corresponds to one second section.

[0015] Furthermore, the first tooth has a wrapping groove, through which the first tooth wraps around the corresponding iron core tooth; the second connecting channel penetrates the groove wall of the wrapping groove, so that when the first tooth wraps around the corresponding iron core tooth, the first end face of the iron core tooth forms the bottom wall of the second connecting channel.

[0016] Furthermore, the first channel portion includes a first connecting channel, with each first tooth corresponding to a first connecting channel; the liquid inlet end of the first connecting channel is used to introduce coolant, and the liquid outlet end of the first connecting channel is connected to the liquid inlet portion of the second channel portion on the corresponding first tooth.

[0017] Furthermore, the liquid inlet end of the first connecting channel extends to the outer peripheral surface of the first yoke.

[0018] Furthermore, the second end face of the first yoke is used to contact the first end face of the core yoke; the first connecting channel penetrates the second end face of the first yoke, so that when the first yoke is disposed at the first end of the stator core, the first end face of the core yoke forms the bottom wall of the first connecting channel.

[0019] Furthermore, the third channel section includes a channel mechanism, with each first tooth corresponding to one channel mechanism; the liquid inlet of the channel mechanism is connected to the liquid outlet of the second channel section on the corresponding first tooth; the liquid outlet of the channel mechanism is used to discharge coolant.

[0020] Furthermore, the channel mechanism includes a connecting groove, the opening of which forms the liquid inlet of the channel mechanism; a preset opening is provided on the side wall of the connecting groove so that the coolant in the connecting groove can flow out through the preset opening.

[0021] Furthermore, the channel mechanism also includes a third connecting channel, the first end of which is connected to a preset opening, and the second end of which is used for coolant to flow out.

[0022] Furthermore, the second frame includes a second yoke and a plurality of second teeth; the second yoke is configured to correspond to the iron core yoke; the plurality of second teeth are configured to correspond one-to-one with the plurality of iron core teeth, such that the second end face of each iron core tooth contacts the support surface of the corresponding second tooth; each channel mechanism corresponds to one second tooth, the connecting groove of each channel mechanism is configured on the support surface of the corresponding second tooth, and the third connecting channel of each channel mechanism is configured on the second yoke.

[0023] According to another aspect of the present invention, an electric motor is provided, which includes a stator, the stator including a stator core and the aforementioned insulating frame.

[0024] According to another aspect of the present invention, a compressor is provided that includes the aforementioned motor.

[0025] According to the technical solution of this invention, the insulating frame includes a first frame and a second frame. The first frame includes a first yoke and a plurality of first teeth, wherein the first yoke is a first frame yoke and the first teeth are first frame teeth; the first yoke is configured to correspond to the core yoke of the stator core; the plurality of first teeth are configured to correspond one-to-one with the plurality of core teeth of the stator core, such that each first tooth covers the corresponding core tooth. The stator core has a first end and a second end disposed opposite to each other along its axial direction; the first yoke is disposed at the first end of the stator core, and the second frame is disposed at the second end of the stator core. A first channel portion is provided on the first yoke, and a third channel portion is provided on the second frame; at least one of the plurality of first teeth is provided with a second channel portion. The inlet section of the first channel is used to introduce coolant; the outlet section of the first channel is connected to the inlet section of the second channel, meaning that the inlet section of each second channel is connected to the outlet section of the first channel; the outlet section of the second channel is connected to the inlet section of the third channel, meaning that the outlet section of each second channel is connected to the inlet section of the third channel; the coolant in the third channel flows out through its outlet section. In other words, coolant flows from the inlet section of the first channel into the first channel, the coolant in the first channel flows into each second channel, the coolant in each second channel flows into the third channel, and then flows out from the outlet section of the third channel. The coolant flowing through the second channel can cool the stator winding wound on the first tooth section where the second channel is located, thereby carrying away the internal heat of the stator winding and achieving heat dissipation and cooling of the stator winding, reducing the accumulation of internal heat in the stator winding, and thus solving the problem of poor heat dissipation of stator windings in the prior art. Attached Figure Description

[0026] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings:

[0027] Figure 1 A schematic diagram of the structure of the first frame, stator core, and second frame according to the present invention is shown.

[0028] Figure 2 A schematic diagram of the structure after the first frame, stator core and second frame are assembled according to the present invention is shown.

[0029] Figure 3 A schematic diagram of the assembly structure of the first frame and the second frame according to the present invention is shown;

[0030] Figure 4 A schematic diagram of the structure of the first skeleton according to the present invention is shown;

[0031] Figure 5A schematic diagram of the assembly structure of the first frame and stator core according to the present invention is shown;

[0032] Figure 6 It shows Figure 5 Enlarged structural diagram of the first and second channel sections;

[0033] Figure 7 A structural schematic diagram of the first skeleton according to the present invention is shown from another perspective;

[0034] Figure 8 A schematic diagram of the structure of the second skeleton according to the present invention is shown;

[0035] Figure 9 A schematic diagram of the structure of the second frame and stator core according to the present invention is shown;

[0036] Figure 10 and Figure 11 A schematic diagram of the structure with the guide groove inclined according to the present invention is shown;

[0037] Figure 12 A schematic diagram of a rectangular cross-section guide groove according to the present invention is shown;

[0038] Figure 13 A schematic diagram of a guide groove with a semi-circular cross-section according to the present invention is shown;

[0039] Figure 14 A schematic diagram of a triangular cross-section of the guide groove according to the present invention is shown;

[0040] Figure 15 It shows Figure 2 A bottom view of the first frame, stator core, and second frame after assembly;

[0041] Figure 16 A schematic diagram of the structure after the first frame, stator core and second frame are assembled according to the present invention is shown from another perspective.

[0042] The above figures include the following reference numerals:

[0043] 10. First frame; 11. First yoke; 111. First channel section; 112. First connecting channel; 12. First tooth section; 120. Second channel section; 121. Second connecting channel; 1211. First track segment; 1212. Second track segment; 122. Guide groove; 123. Wrapping groove; 124. First winding groove;

[0044] 20. Second frame; 201. Third channel section; 202. Channel mechanism; 2021. Connecting groove; 2022. Pre-set opening; 2023. Third connecting channel; 21. Second yoke; 22. Second toothed section; 23. Second winding groove; 24. Buckling section;

[0045] 30. Circumferential groove;

[0046] 90. Stator core; 901. Core yoke; 902. Core teeth; 91. Locking hole. Detailed Implementation

[0047] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] It should be noted that the following detailed descriptions are illustrative and intended to provide further explanation of this application. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains.

[0049] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0050] This invention provides an insulating frame, please refer to... Figures 1 to 16 The insulating frame includes a first frame 10 and a second frame 20.

[0051] The first frame 10 includes a first yoke 11 and a plurality of first teeth 12. The first yoke 11 is the first frame yoke, and the first teeth 12 are the first frame teeth. The first yoke 11 is configured to correspond to the core yoke 901 of the stator core 90. The plurality of first teeth 12 are configured to correspond one-to-one with the plurality of core teeth 902 of the stator core 90, so that each first tooth 12 covers the corresponding core tooth 902.

[0052] The stator core 90 has a first end and a second end disposed opposite to each other along its axial direction; a first yoke 11 is disposed at the first end of the stator core 90, and a second frame 20 is disposed at the second end of the stator core 90.

[0053] A first channel portion 111 is provided on the first yoke portion 11, and a third channel portion 201 is provided on the second skeleton 20; at least one of the plurality of first tooth portions 12 is provided with a second channel portion 120.

[0054] The inlet of the first channel section 111 is used to introduce coolant; the outlet of the first channel section 111 is connected to the inlet of the second channel section 120, that is, the inlet of each second channel section 120 is connected to the outlet of the first channel section 111; the outlet of the second channel section 120 is connected to the inlet of the third channel section 201, that is, the outlet of each second channel section 120 is connected to the inlet of the third channel section 201; the coolant in the third channel section 201 flows out through its outlet. In other words, coolant flows into the first channel section 111 from its inlet, flows into each second channel section 120 from its inlet, flows into the third channel section 201 from its outlet.

[0055] The coolant flowing through the second channel portion 120 is used to cool the stator winding. Specifically, the coolant flowing through the second channel portion 120 can cool the stator winding wound on the first tooth portion 12 where the second channel portion 120 is located, so as to remove the internal heat of the stator winding and play a role in heat dissipation and cooling of the stator winding, thereby reducing the accumulation of internal heat in the stator winding and solving the problem of poor heat dissipation of the stator winding in the prior art.

[0056] Preferably, each of the first teeth 12 is provided with a second channel portion 120.

[0057] Optionally, the coolant is lubricating oil.

[0058] In this application, along the axial direction of the first frame 10, the first tooth 12 has a first end and a second end disposed opposite to each other; the direction from the first end to the second end of the first tooth 12 is the same as the direction from the first end to the second end of the stator core 90. Along the circumferential direction of the first frame 10, the first tooth 12 has two oppositely disposed side surfaces.

[0059] In this application, the second channel portion 120 includes a second connecting channel 121 and an elongated guide groove 122. The second connecting channel 121 is disposed on the first end face of the first tooth portion 12, and the guide groove 122 is disposed on the side of the first tooth portion 12. The liquid inlet of the second connecting channel 121 is connected to the liquid outlet of the first channel portion 111, the liquid inlet of the guide groove 122 is connected to the liquid outlet of the second connecting channel 121, and the liquid outlet of the guide groove 122 is connected to the liquid inlet of the third channel portion 201.

[0060] The coolant in the first channel section 111 flows into the second connecting channel 121 of each second channel section 120; in each second channel section 120, the coolant in the second connecting channel 121 flows into each guide groove 122; the coolant in the guide groove 122 of each second channel section 120 flows into the third channel section 201.

[0061] The coolant flowing through the second channel section 120 can directly contact the stator winding, that is, the coolant can flow into the interior of the stator winding to ensure the heat dissipation effect on the stator winding.

[0062] In this application, at least one of the two oppositely arranged sides of the first tooth 12 is provided with a guide groove 122.

[0063] Preferably, guide grooves 122 are provided on both sides of the first tooth 12.

[0064] In this application, one or more guide grooves 122 are provided on the side of the first tooth 12.

[0065] Optionally, when a plurality of guide grooves 122 are provided on one side of the first tooth 12, the extension directions of the plurality of guide grooves 122 on that side are all parallel.

[0066] In this application, optionally, the cross section of the guide groove 122 perpendicular to its extension direction is a polygon or a part of a preset circle.

[0067] For example, the cross-section of the guide groove 122 perpendicular to its extension direction is rectangular, triangular, or semi-circular.

[0068] In this application, optionally, the extending direction of the guide groove 122 is parallel to the length direction of the first tooth 12; or, the extending direction of the guide groove 122 is parallel to the length direction of the first tooth 12 at an acute angle, in which case the guide groove 122 is inclined relative to the length direction of the first tooth 12. The length direction of the first tooth 12 is parallel to the axial direction of the first skeleton 10.

[0069] In this application, the liquid inlet end and liquid outlet end of the guide groove 122 extend to the first end face and the second end face of the first tooth 12, respectively.

[0070] In this application, the second connecting channel 121 includes a first section 1211 and a second section 1212 arranged at an angle. The first end of the first section 1211 is open, forming the liquid inlet of the second connecting channel 121, and the second end of the first section 1211 is closed. Both ends of the second section 1212 are open. The first end of the second section 1212 is connected to the first section 1211. The second end of the second section 1212 forms the liquid outlet of the second connecting channel 121, that is, the second ends of all second sections 1212 of the second connecting channel 121 form the liquid outlet of the second connecting channel 121. Each guide groove 122 corresponds to one second section 1212.

[0071] The coolant in the first channel section 111 flows into the first section 1211 of each second channel section 120; in each second channel section 120, the coolant in the first section 1211 flows into the second section 1212, and the coolant in the second section 1212 flows into the corresponding guide groove 122.

[0072] Optionally, the first track segment 1211 and the second track segment 1212 are perpendicular to each other.

[0073] Optionally, the second connecting channel 121 includes two channel units; each channel unit includes at least one second section 1212; each second section 1212 is arranged at an angle to the first section 1211. In each second channel portion 120, the two channel units are respectively arranged one-to-one with the two sides of the first tooth portion 12, and all the second sections 1212 of each channel unit are arranged one-to-one with all the guide grooves 122 on the corresponding sides of the first tooth portion 12, so that the second end of each second section 1212 of each channel unit is connected to the liquid inlet end of the corresponding guide groove 122 on the corresponding side of the first tooth portion 12.

[0074] Optionally, the extension directions of the multiple second segments 1212 of the channel unit are all parallel.

[0075] Optionally, the cross-section of the second segment 1212 perpendicular to its extension direction is a polygon. For example, the cross-section of the second segment 1212 perpendicular to its extension direction is a rectangle.

[0076] In this application, the first tooth 12 has a wrapping groove 123, through which the first tooth 12 wraps around the corresponding core tooth 902. A second connecting channel 121 penetrates the wall of the wrapping groove 123, such that when the first tooth 12 wraps around the corresponding core tooth 902, the first end face of the core tooth 902 forms the bottom wall of the second connecting channel 121. Along the axial direction of the stator core 90, the core tooth 902 has a first end and a second end disposed opposite to each other; the direction from the first end to the second end of the core tooth 902 is the same as the direction from the first end to the second end of the stator core 90.

[0077] Specifically, the first section 1211 penetrates the groove wall of the wrapping groove 123 so that when the first tooth 12 covers the corresponding iron core tooth 902, the first end face of the iron core tooth 902 forms the bottom wall of the first section 1211.

[0078] Specifically, the second section 1212 penetrates the groove wall of the wrapping groove 123 so that when the first tooth 12 covers the corresponding iron core tooth 902, the first end face of the iron core tooth 902 forms the bottom wall of the second section 1212.

[0079] In this application, the first channel portion 111 includes a first connecting channel 112, and each first tooth portion 12 corresponds to a first connecting channel 112; the liquid inlet end of the first connecting channel 112 is used to introduce coolant, and the liquid outlet end of the first connecting channel 112 is connected to the liquid inlet portion of the second channel portion 120 on the corresponding first tooth portion 12.

[0080] Preferably, the first channel portion 111 includes a plurality of first connecting channels 112, and the plurality of first connecting channels 112 are arranged in a one-to-one correspondence with a plurality of first teeth 12; the liquid inlet end of each first connecting channel 112 is used to introduce coolant; the liquid outlet end of each first connecting channel 112 is connected to the liquid inlet portion of the second channel portion 120 on the corresponding first tooth 12.

[0081] Specifically, the liquid outlet end of each first connecting channel 112 is connected to the first end of the first section 1211 of the second channel portion 120 on the corresponding first tooth portion 12.

[0082] In this application, the liquid inlet end of the first connecting channel 112 extends to the outer peripheral surface of the first yoke 11.

[0083] In this application, along the axial direction of the first frame 10, the first yoke 11 has a first end and a second end disposed opposite to each other; the direction from the first end to the second end of the first yoke 11 is the same as the direction from the first end to the second end of the stator core 90. The second end face of the first yoke 11 is used to contact the first end face of the core yoke 901.

[0084] Optionally, the first connecting channel 112 extends through the second end face of the first yoke 11, so that when the first yoke 11 is disposed at the first end of the stator core 90, the first end face of the core yoke 901 forms the bottom wall of the first connecting channel 112.

[0085] In this application, the third channel section 201 includes a channel mechanism 202, and each first tooth section 12 corresponds to one channel mechanism 202; the liquid inlet section of the channel mechanism 202 is connected to the liquid outlet section of the second channel section 120 on the corresponding first tooth section 12; the liquid outlet section of the channel mechanism 202 is used to discharge coolant.

[0086] Optionally, the third channel section 201 includes a plurality of channel mechanisms 202, which are arranged one-to-one with a plurality of first toothed sections 12. The liquid inlet of each channel mechanism 202 is connected to the liquid outlet of the second channel section 120 on the corresponding first toothed section 12; the liquid outlet of each channel mechanism 202 is used to discharge coolant, that is, the coolant in each channel mechanism 202 flows out through its liquid outlet.

[0087] In this application, the channel mechanism 202 includes a connecting groove 2021; the opening of the connecting groove 2021 forms the liquid inlet of the channel mechanism 202; a preset opening 2022 is provided on the side wall of the connecting groove 2021 so that the coolant in the connecting groove 2021 flows out through the preset opening 2022.

[0088] In this application, the channel mechanism 202 further includes a third connecting channel 2023, the first end of which is connected to a preset opening 2022; the second end of the third connecting channel 2023 is used for coolant to flow out, that is, the coolant in the third connecting channel 2023 flows out through its second end; the second end of the third connecting channel 2023 forms the liquid outlet of the channel mechanism 202.

[0089] Specifically, the second end of the third connecting channel 2023 extends to the outer wall of the second frame 20.

[0090] In this application, the second frame 20 includes a second yoke 21 and a plurality of second teeth 22. The second yoke 21 is the second frame yoke, and the second teeth 22 are the second frame teeth. The second yoke 21 is configured to correspond to the core yoke 901. The plurality of second teeth 22 are configured to correspond one-to-one with the plurality of core teeth 902, so that when the second frame 20 is disposed at the second end of the stator core 90, the second end face of each core tooth 902 contacts the support surface of the corresponding second tooth 22, so that each second tooth 22 supports the corresponding stator core 90.

[0091] Specifically, along the axial direction of the second frame 20, the second tooth 22 has a first end and a second end that are disposed opposite to each other; the direction from the first end to the second end of the second tooth 22 is the same as the direction from the first end to the second end of the stator core 90; the first end face of the second tooth 22 is its support surface.

[0092] Specifically, a plurality of first teeth 12 are provided in a one-to-one correspondence with a plurality of second teeth 22, such that when the first yoke 11 is provided at the first end of the stator core 90 and when the second frame 20 is provided at the second end of the stator core 90, the second end face of each first tooth 12 contacts the support surface of the corresponding second tooth 22.

[0093] Specifically, each channel mechanism 202 corresponds to a second tooth 22, the connecting groove 2021 of each channel mechanism 202 is provided on the support surface of the corresponding second tooth 22, and the third connecting channel 2023 of each channel mechanism 202 is provided on the second yoke 21.

[0094] Optionally, multiple channel mechanisms 202 are provided in a one-to-one correspondence with multiple second teeth 22, such that the connecting groove 2021 of each channel mechanism 202 is provided on the support surface of the corresponding second tooth 22; the third connecting channel 2023 of the multiple channel mechanisms 202 are all provided on the second yoke 21.

[0095] Specifically, the second end of each first tooth 12 is located in the connecting groove 2021 on the corresponding second tooth 22, and the second end of each stator core 90 is located in the connecting groove 2021 on the corresponding second tooth 22; so that the liquid outlet of all guide grooves 122 on each first tooth 12 is located in the connecting groove 2021 on the corresponding second tooth 22, thereby connecting the liquid outlet of all guide grooves 122 on each first tooth 12 with the connecting groove 2021 on the corresponding second tooth 22, and thus allowing the coolant in all guide grooves 122 on each first tooth 12 to flow into the connecting groove 2021.

[0096] Specifically, along the axial direction of the second frame 20, the second yoke 21 has a first end and a second end that are disposed opposite to each other; the direction from the first end to the second end of the second yoke 21 is the same as the direction from the first end to the second end of the stator core 90. The third connecting channel 2023 of each channel mechanism 202 is disposed on the first end face of the second yoke 21.

[0097] Specifically, the second end of the third connecting channel 2023 extends to the outer wall surface of the second yoke 21. Optionally, the second end of the third connecting channel 2023 extends to the outer peripheral surface of the second frame 20.

[0098] Optionally, the third connecting channel 2023 extends through the first end face of the second yoke 21, so that when the second frame 20 is disposed at the second end of the stator core 90, the second end face of the core yoke 901 forms a portion of the channel side of the third connecting channel 2023.

[0099] Optionally, the thickness of the second tooth 22 is A, and the groove depth of the connecting groove 2021 is B, where 1 / 3A≤B≤2 / 3A; wherein the thickness direction of the second tooth 22 is parallel to the axial direction of the second skeleton 20, and the groove depth direction of the connecting groove 2021 is parallel to the axial direction of the second skeleton 20.

[0100] Optionally, the depth of the third connecting channel 2023 is equal to the depth of the connecting groove 2021; wherein the depth direction of the third connecting channel 2023 is parallel to the axial direction of the second skeleton 20.

[0101] In this application, one of the second frame 20 and the stator core 90 is provided with a snap-fit ​​part 24, and the other is provided with a snap-fit ​​hole 91. The snap-fit ​​part 24 is snapped into the snap-fit ​​hole 91 so that the second frame 20 and the stator core 90 are relatively fixed together.

[0102] Optionally, the latching part 24 is disposed on the second frame 20, and the latching hole 91 is disposed on the stator core 90. Further, the latching part 24 is disposed on the second yoke 21, and the latching hole 91 is disposed on the core yoke 901.

[0103] Optionally, there are multiple latching parts 24 and multiple latching holes 91. The multiple latching parts 24 are distributed along the circumference of the stator core 90, and the multiple latching parts 24 and multiple latching holes 91 are arranged in a one-to-one correspondence so that each latching part 24 is latched in the corresponding latching hole 91.

[0104] Optionally, the snap-fit ​​part 24 is a protruding post.

[0105] In this application, the slot radius of the insulating skeleton is R1, and the slot bottom radius of the insulating skeleton is R2; a winding slot 30 is formed between two adjacent skeleton teeth; the slot depth of the winding slot 30 is D, and the direction of the slot depth of the winding slot 30 is perpendicular to the axial direction of the stator core 90; D = R2 - R1. The stator winding is wound on the skeleton teeth.

[0106] Specifically, the slot radius of the first skeleton 10 and the slot radius of the second skeleton 20 are both equal to the slot radius of the insulating skeleton; the bottom radius of the slot of the first skeleton 10 and the bottom radius of the slot of the second skeleton 20 are both equal to the bottom radius of the slot of the insulating skeleton; a first winding groove 124 is formed between two adjacent first teeth 12, and a second winding groove 23 is formed between two adjacent second teeth 22, and the winding groove 30 includes the first winding groove 124 and the second winding groove 23; a skeleton tooth includes a first tooth 12 and a corresponding second tooth 22.

[0107] In the present application, the tooth width of the skeleton tooth part is H, and D / 2 ≤ H ≤ D.

[0108] In the present application, the groove width of the guiding groove 122 is d, and 0 < d < D.

[0109] In the present application, for the side surface of the first tooth part 12 where the guiding groove 122 is provided, n guiding grooves 122 are provided on this side surface, 1 ≤ n < D / d, and n must be an integer.

[0110] In the present application, the first skeleton 10 is a lead-end skeleton, and the second skeleton 20 is a non-lead-end skeleton.

[0111] In the present application, the first skeleton 10 is an integrally formed structure; the second skeleton 20 is an integrally formed structure.

[0112] The present invention also provides a stator, which includes a stator core 90 and the above-mentioned insulating skeleton.

[0113] The present invention also provides a motor, which includes a rotor and the above-mentioned stator.

[0114] The present invention also provides a compressor, which includes the above-mentioned motor. During the operation of the compressor, the lubricating oil driven by the rotation of the rotor can flow in from the liquid inlet part of the first channel part 111, and flow out after passing through the second channel part 120 and the third channel part 201.

[0115] From the above description, it can be seen that the above embodiments of the present invention achieve the following technical effects:

[0116] The insulating frame provided by the present invention includes a first frame 10 and a second frame 20. The first frame 10 includes a first yoke 11 and a plurality of first teeth 12, wherein the first yoke 11 is a first frame yoke and the first teeth 12 are first frame teeth; the first yoke 11 is configured to correspond to the core yoke 901 of the stator core 90; the plurality of first teeth 12 are configured to correspond one-to-one with the plurality of core teeth 902 of the stator core 90, such that each first tooth 12 covers the corresponding core tooth 902. The stator core 90 has a first end and a second end disposed opposite to each other along its axial direction; the first yoke 11 is disposed at the first end of the stator core 90, and the second frame 20 is disposed at the second end of the stator core 90. A first channel portion 111 is provided on the first yoke 11, and a third channel portion 201 is provided on the second frame 20; at least one of the plurality of first teeth 12 is provided with a second channel portion 120. The inlet of the first channel section 111 is used to introduce coolant; the outlet of the first channel section 111 is connected to the inlet of the second channel section 120, that is, the inlet of each second channel section 120 is connected to the outlet of the first channel section 111; the outlet of the second channel section 120 is connected to the inlet of the third channel section 201, that is, the outlet of each second channel section 120 is connected to the inlet of the third channel section 201; the coolant in the third channel section 201 flows out through its outlet. In other words, coolant flows into the first channel section 111 from its inlet, flows into each second channel section 120 from its inlet, flows into the third channel section 201 from its outlet. The coolant flowing through the second channel section 120 can cool the stator winding wound on the first tooth section 12 where the second channel section 120 is located, so as to remove the internal heat of the stator winding and play a role in heat dissipation and cooling of the stator winding, thereby reducing the accumulation of internal heat in the stator winding and solving the problem of poor heat dissipation of the stator winding in the prior art.

[0117] By improving the heat dissipation performance of the stator windings, the motor efficiency is increased and the service life of the motor is extended. In addition, the arrangement of the second channel section 120 increases the spacing between the windings and the iron core teeth 902, thereby improving the insulation withstand voltage performance of the motor.

[0118] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0119] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0120] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An insulating frame, characterized in that, include: The first frame (10) includes a first yoke (11) and a plurality of first teeth (12); the first yoke (11) is configured to correspond to the core yoke (901) of the stator core (90), and the plurality of first teeth (12) are configured to correspond one-to-one with the plurality of core teeth (902) of the stator core (90), so that each first tooth (12) covers the corresponding core tooth (902); the first yoke (11) is configured at the first end of the stator core (90); The second frame (20) is used to be disposed at the second end of the stator core (90); The first yoke (11) is provided with a first channel (111), and the second frame (20) is provided with a third channel (201); at least one of the first teeth (12) is provided with a second channel (120); the liquid inlet of the first channel (111) is used to introduce coolant, the liquid outlet of the first channel (111) is connected to the liquid inlet of the second channel (120), the liquid outlet of the second channel (120) is connected to the liquid inlet of the third channel (201), and the coolant in the third channel (201) flows out through its liquid outlet; the coolant flowing through the second channel (120) is used to cool the stator winding; The direction from the first end to the second end of the first tooth (12) is the same as the direction from the first end to the second end of the stator core (90); along the circumference of the first frame (10), the first tooth (12) has two oppositely arranged side surfaces; the second channel (120) includes a second connecting channel (121) and an elongated guide groove (122), the second connecting channel (121) is disposed on the first end face of the first tooth (12); the liquid inlet of the second connecting channel (121) is connected to the liquid outlet of the first channel (111); the guide groove (122) is disposed on the side surface of the first tooth (12); the liquid inlet of the guide groove (122) is connected to the liquid outlet of the second connecting channel (121), and the liquid outlet of the guide groove (122) is connected to the liquid inlet of the third channel (201).

2. The insulating frame according to claim 1, characterized in that, Each of the first tooth portions (12) is provided with a second channel portion (120).

3. The insulating frame according to claim 1, characterized in that, The guide groove (122) is provided on at least one side of the first tooth (12); and / or One or more guide grooves (122) are provided on the side of the first tooth (12); and / or The cross-section of the guide groove (122) perpendicular to its extension direction is a polygon or a portion of a predetermined circle; and / or The extension direction of the guide groove (122) is parallel to or at an acute angle to the length direction of the first tooth (12); and / or The inlet and outlet ends of the guide groove (122) extend to the first end face and the second end face of the first tooth (12), respectively.

4. The insulating frame according to claim 1, characterized in that, The second connecting channel (121) includes a first section (1211) and a second section (1212) arranged at an angle; the first end of the first section (1211) forms the liquid inlet of the second connecting channel (121), and the second end of the first section (1211) is closed; the first end of the second section (1212) is connected to the first section (1211), and the second end of the second section (1212) forms the liquid outlet of the second connecting channel (121); each guide groove (122) corresponds to one second section (1212).

5. The insulating frame according to claim 1, characterized in that, The first tooth (12) has a wrapping groove (123), and the first tooth (12) wraps the corresponding iron core tooth (902) through the wrapping groove (123); the second connecting channel (121) penetrates the groove wall of the wrapping groove (123) so that when the first tooth (12) wraps the corresponding iron core tooth (902), the first end face of the iron core tooth (902) forms the bottom wall of the second connecting channel (121).

6. The insulating frame according to claim 1, characterized in that, The first channel portion (111) includes a first connecting channel (112), and each first tooth portion (12) corresponds to a first connecting channel (112); the liquid inlet end of the first connecting channel (112) is used to introduce coolant, and the liquid outlet end of the first connecting channel (112) is connected to the liquid inlet of the second channel portion (120) on the corresponding first tooth portion (12).

7. The insulating frame according to claim 6, characterized in that, The liquid inlet end of the first connecting channel (112) extends to the outer peripheral surface of the first yoke (11); and / or The second end face of the first yoke (11) is used to contact the first end face of the core yoke (901); the first connecting channel (112) penetrates the second end face of the first yoke (11) so that when the first yoke (11) is disposed at the first end of the stator core (90), the first end face of the core yoke (901) forms the bottom wall of the first connecting channel (112).

8. The insulating frame according to claim 1, characterized in that, The third channel section (201) includes a channel mechanism (202), and each of the first teeth (12) corresponds to one channel mechanism (202); the liquid inlet of the channel mechanism (202) is connected to the liquid outlet of the second channel section (120) on the corresponding first tooth (12); the liquid outlet of the channel mechanism (202) is used to discharge coolant.

9. The insulating frame according to claim 8, characterized in that, The channel mechanism (202) includes a connecting groove (2021), the opening of which forms the liquid inlet of the channel mechanism (202); a preset opening (2022) is provided on the side wall of the connecting groove (2021) so that the coolant in the connecting groove (2021) flows out through the preset opening (2022).

10. The insulating frame according to claim 9, characterized in that, The channel mechanism (202) further includes a third connecting channel (2023), the first end of which is connected to the preset opening (2022), and the second end of which is used for the outflow of coolant.

11. The insulating frame according to claim 10, characterized in that, The second frame (20) includes a second yoke (21) and a plurality of second teeth (22); the second yoke (21) is configured to correspond to the iron core yoke (901); the plurality of second teeth (22) are configured to correspond one-to-one with the plurality of iron core teeth (902) so that the second end face of each iron core tooth (902) contacts the support surface of the corresponding second tooth (22); Each of the channel mechanisms (202) corresponds to a second tooth (22), and the connecting groove (2021) of each of the channel mechanisms (202) is provided on the support surface of the corresponding second tooth (22). The third connecting channel (2023) of each of the channel mechanisms (202) is provided on the second yoke (21).

12. An electric motor, comprising a stator, characterized in that, The stator includes a stator core (90) and an insulating frame as described in any one of claims 1 to 11.

13. A compressor, characterized in that, Includes the motor as described in claim 12.

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