Insulating framework, motor and compressor

Abstract

The invention provides an insulating framework, a motor and a compressor. The insulating framework comprises a first framework and a second framework, the first framework comprises a first yoke part and a plurality of first tooth parts; the first yoke part is used for being arranged corresponding to an iron core yoke part of a stator iron core, and the plurality of first tooth parts are used for being arranged in one-to-one correspondence with a plurality of iron core tooth parts of the stator iron core; the first yoke part is arranged at the first end of the stator core; the second framework is arranged at the second end of the stator core; a first channel part is arranged on the first yoke part, and a third channel part is arranged on the second framework; at least one first tooth part is provided with a second channel part; the liquid inlet part of the first channel part is used for introducing cooling liquid, the liquid outlet part of the first channel part is communicated with the liquid inlet part of the second channel part, the liquid outlet part of the second channel part is communicated with the liquid inlet part of the third channel part, and the cooling liquid in the third channel part flows out through the liquid outlet part of the third channel part; and the cooling liquid flowing through the second channel part is used for cooling the stator winding.

Description

Technical Field

[0001] The present invention relates to the technical field of motors, and in particular to an insulating frame, a motor and a compressor. Background Art

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

[0003] The heat dissipation of the stator winding of the existing motor is relatively poor.

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

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

[0006] In order to achieve the above-mentioned purpose, according to one aspect of the present invention, an insulating skeleton is provided, which includes: a first skeleton, including a first yoke and a plurality of first teeth; the first yoke is used to be arranged corresponding to the core yoke of the stator core, and the plurality of first teeth are used to be arranged one-to-one with the plurality of core teeth of the stator core, so that each first tooth covers the corresponding core tooth; the first yoke is used to be arranged at the first end of the stator core; a second skeleton is used to be arranged at the second end of the stator core; wherein a first channel portion is arranged on the first yoke, and a third channel portion is arranged on the second skeleton; a second channel portion is arranged on at least one first tooth; a liquid inlet portion of the first channel portion is used to allow cooling liquid to pass through, a liquid outlet portion of the first channel portion is communicated with a liquid inlet portion of the second channel portion, a liquid outlet portion of the second channel portion is communicated with a liquid inlet portion of the third channel portion, and the cooling liquid in the third channel portion flows out through its liquid outlet portion; the cooling liquid flowing through the second channel portion is used to cool the stator winding.

[0007] Furthermore, each first tooth portion is provided with a second channel portion.

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

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

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

[0011] Furthermore, a cross section of the guide groove perpendicular to its extension direction is a polygon or a part of a preset circle.

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

[0013] Furthermore, the liquid inlet end and the liquid outlet end of the guide groove extend to the first end surface and the second end surface of the first tooth portion 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 a 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 a liquid outlet of the second connecting channel; each guide groove corresponds to a second section.

[0015] Furthermore, the first tooth portion has a wrapping groove, and the first tooth portion covers the corresponding core tooth portion through the wrapping groove; the second connecting channel runs through the groove wall of the wrapping groove, so that when the first tooth portion covers the corresponding core tooth portion, the first end face of the core tooth portion forms the bottom wall of the second connecting channel.

[0016] Furthermore, the first channel portion includes a first connecting channel, and each first tooth portion corresponds to a first connecting channel; the liquid inlet end of the first connecting channel is used to introduce cooling liquid, 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 portion.

[0017] Further, the liquid inlet end of the first communication 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 passes through the second end face of the first yoke, so that when the first yoke is arranged 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 portion includes a channel mechanism, each first tooth portion corresponds to a channel mechanism; the liquid inlet portion of the channel mechanism is connected to the liquid outlet portion of the second channel portion on the corresponding first tooth portion; the liquid outlet portion of the channel mechanism is used to flow out the cooling liquid.

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

[0021] Furthermore, the channel mechanism also includes a third communicating channel, a first end of the third communicating channel is communicated with a preset opening, and a second end of the third communicating channel is used for outflowing cooling liquid.

[0022] Furthermore, the second skeleton includes a second yoke and a plurality of second teeth; the second yoke is used to be arranged corresponding to the core yoke; the plurality of second teeth are used to be arranged one-to-one corresponding to the plurality of core teeth, so that the second end face of each core tooth contacts the support face of the corresponding second tooth; each channel mechanism corresponds to a second tooth, the connecting groove of each channel mechanism is arranged on the support face of the corresponding second tooth, and the third connecting channel of each channel mechanism is arranged on the second yoke.

[0023] According to another aspect of the present invention, a motor is provided, which includes a stator, wherein the stator includes a stator core and the above-mentioned insulating frame.

[0024] According to yet another aspect of the present invention, a compressor is provided, comprising the above-mentioned motor.

[0025] Applying the technical solution of the present invention, the insulating skeleton includes a first skeleton and a second skeleton. The first skeleton includes a first yoke and a plurality of first teeth, the first yoke is a first skeleton yoke, and the first teeth are first skeleton teeth; the first yoke is used to be arranged corresponding to the core yoke of the stator core; the plurality of first teeth are used to be arranged one-to-one with the plurality of core teeth of the stator core, so that each first tooth covers the corresponding core teeth. The stator core has a first end and a second end that are arranged oppositely along its axial direction; the first yoke is used to be arranged at the first end of the stator core, and the second skeleton is used to be arranged at the second end of the stator core. A first channel portion is arranged on the first yoke, and a third channel portion is arranged on the second skeleton; a second channel portion is arranged on at least one of the plurality of first teeth. The liquid inlet of the first channel portion is used to pass the cooling liquid; the liquid outlet of the first channel portion is connected with the liquid inlet of the second channel portion, that is, the liquid inlet of each second channel portion is connected with the liquid outlet of the first channel portion; the liquid outlet of the second channel portion is connected with the liquid inlet of the third channel portion, that is, the liquid outlet of each second channel portion is connected with the liquid inlet of the third channel portion; the cooling liquid in the third channel portion flows out through its liquid outlet. That is, the cooling liquid flows into the first channel portion from the liquid inlet of the first channel portion, the cooling liquid in the first channel portion flows into each second channel portion, the cooling liquid in each second channel portion flows into the third channel portion again, and then flows out from the liquid outlet of the third channel portion. The cooling liquid flowing through the second channel portion can cool the stator winding wound on the first tooth portion where the second channel portion is located, so as to take away the internal heat of the stator winding, so as to play a role in heat dissipation and cooling of the stator winding, so as to reduce the accumulation of internal heat of the stator winding, thereby solving the problem of poor heat dissipation of the stator winding in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The drawings constituting a part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0027] Figure 1 A schematic structural diagram of a first skeleton, a stator core and a second skeleton according to the present invention is shown;

[0028] Figure 2 A schematic diagram of the structure after the first frame, the stator core and the 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 structural diagram of a first skeleton according to the present invention is shown;

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

[0032] Figure 6 Shows Figure 5 An enlarged structural diagram of the first channel portion and the second channel portion;

[0033] Figure 7 A schematic structural diagram showing another viewing angle of the first skeleton according to the present invention;

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

[0035] Fig. 9 A schematic structural diagram of a second skeleton and a stator core according to the present invention is shown;

[0036] Fig.10 and Fig.11 It shows a schematic structural diagram of the guide groove inclinedly arranged according to the present invention;

[0037] Fig.12 A schematic structural diagram showing a guide groove according to the present invention having a rectangular cross section;

[0038] Fig.13 A schematic structural diagram showing a guide groove according to the present invention having a semicircular cross section;

[0039] Fig.14 A schematic structural diagram showing a guide groove according to the present invention having a triangular cross section;

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

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

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

[0043] 10, first skeleton; 11, first yoke; 111, first channel; 112, first communication channel; 12, first tooth; 120, second channel; 121, second communication channel; 1211, first track section; 1212, second track section; 122, guide groove; 123, wrapping groove; 124, first winding groove;

[0044] 20, second skeleton; 201, third channel portion; 202, channel mechanism; 2021, connecting groove; 2022, preset opening; 2023, third connecting channel; 21, second yoke portion; 22, second tooth portion; 23, second winding groove; 24, buckle portion;

[0045] 30. Winding groove;

[0046] 90, stator core; 901, core yoke; 902, core tooth; 91, clamping hole. DETAILED DESCRIPTION

[0047] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0049] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0050] The present 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 skeleton 10 includes a first yoke 11 and a plurality of first tooth portions 12, wherein the first yoke 11 is a first skeleton yoke, and the first tooth portions 12 are first skeleton tooth portions; the first yoke 11 is used to be arranged corresponding to the core yoke 901 of the stator core 90; the plurality of first tooth portions 12 are used to be arranged one by one corresponding to the plurality of core tooth portions 902 of the stator core 90, so that each first tooth portion 12 covers the corresponding core tooth portion 902.

[0052] The stator core 90 has a first end and a second end that are oppositely disposed along its axial direction; the first yoke 11 is used to be disposed at the first end of the stator core 90 , and the second frame 20 is used to be disposed at the second end of the stator core 90 .

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

[0054] The liquid inlet of the first channel portion 111 is used to pass the cooling liquid; the liquid outlet of the first channel portion 111 is connected with the liquid inlet of the second channel portion 120, that is, the liquid inlet of each second channel portion 120 is connected with the liquid outlet of the first channel portion 111; the liquid outlet of the second channel portion 120 is connected with the liquid inlet of the third channel portion 201, that is, the liquid outlet of each second channel portion 120 is connected with the liquid inlet of the third channel portion 201; the cooling liquid in the third channel portion 201 flows out through its liquid outlet. That is, the cooling liquid flows into the first channel portion 111 from the liquid inlet of the first channel portion 111, the cooling liquid in the first channel portion 111 flows into each second channel portion 120, the cooling liquid in each second channel portion 120 flows into the third channel portion 201, and then flows out from the liquid outlet of the third channel portion 201.

[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 take away the internal heat of the stator winding, so as to dissipate heat and cool the stator winding, so as to reduce the accumulation of internal heat of the stator winding, thereby solving the problem of poor heat dissipation of the stator winding in the prior art.

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

[0057] Optionally, the coolant is lubricating oil.

[0058] In the present application, along the axial direction of the first frame 10, the first tooth portion 12 has a first end and a second end that are oppositely disposed; the direction from the first end to the second end of the first tooth portion 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 portion 12 has two oppositely disposed side surfaces.

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

[0060] The coolant in the first channel portion 111 flows into the second connecting channel 121 of each second channel portion 120; in each second channel portion 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 portion 120 flows into the third channel portion 201.

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

[0062] In the present application, a guide groove 122 is provided on at least one of the two oppositely disposed side surfaces of the first tooth portion 12 .

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

[0064] In the present application, for the side surface of the first tooth portion 12 where the guide groove 122 is provided, one or more guide grooves 122 are provided on the side surface.

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

[0066] In the present 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 the extending direction thereof is rectangular, triangular, or semicircular.

[0068] In the present application, optionally, the extension direction of the guide groove 122 is parallel to the length direction of the first tooth portion 12; or, the extension direction of the guide groove 122 is parallel to the length direction of the first tooth portion 12 and is arranged at an acute angle, in which case the guide groove 122 is inclined relative to the length direction of the first tooth portion 12. The length direction of the first tooth portion 12 is parallel to the axial direction of the first framework 10.

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

[0070] In the present 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, so that 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; 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 the 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 a second section 1212.

[0071] The coolant in the first channel portion 111 flows into the first segment 1211 of each second channel portion 120 ; in each second channel portion 120 , the coolant in the first segment 1211 flows into each second segment 1212 , and the coolant in each second segment 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; the channel unit includes at least one second track segment 1212; each second track segment 1212 is arranged at an angle with the first track segment 1211. In each second channel portion 120, the two channel units are respectively arranged in a one-to-one correspondence with the two side surfaces of the first tooth portion 12, and all the second track segments 1212 of each channel unit are arranged in a one-to-one correspondence with all the guide grooves 122 on the corresponding side surfaces of the first tooth portion 12, so that the second end of each second track segment 1212 of each channel unit is connected with the liquid inlet end of the corresponding guide groove 122 on the corresponding side surface of the first tooth portion 12.

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

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

[0076] In the present application, the first tooth portion 12 has a wrapping groove 123, and the first tooth portion 12 wraps the corresponding core tooth portion 902 through the wrapping groove 123. The second communication channel 121 penetrates the slot wall of the wrapping groove 123, so that when the first tooth portion 12 wraps the corresponding core tooth portion 902, the first end surface of the core tooth portion 902 forms the bottom wall of the second communication channel 121. Along the axial direction of the stator core 90, the core tooth portion 902 has a first end and a second end that are oppositely arranged; the direction from the first end to the second end of the core tooth portion 902 is the same as the direction from the first end to the second end of the stator core 90.

[0077] Specifically, the first segment 1211 penetrates through the slot wall of the wrapping slot 123 , so that when the first tooth portion 12 wraps around the corresponding core tooth portion 902 , the first end surface of the core tooth portion 902 forms the bottom wall of the first segment 1211 .

[0078] Specifically, the second segment 1212 penetrates through the slot wall of the wrapping slot 123 , so that when the first tooth portion 12 wraps around the corresponding core tooth portion 902 , the first end surface of the core tooth portion 902 forms the bottom wall of the second segment 1212 .

[0079] In the present 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 cooling liquid, 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 one-to-one correspondingly to the plurality of first tooth portions 12; the liquid inlet end of each first connecting channel 112 is used for introducing cooling liquid; 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 portion 12.

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

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

[0083] In the present application, along the axial direction of the first frame 10, the first yoke 11 has a first end and a second end that are arranged 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 surface of the first yoke 11 is used to contact the first end surface of the core yoke 901.

[0084] Optionally, the first communication channel 112 penetrates the second end surface 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 surface of the core yoke 901 forms a bottom wall of the first communication channel 112 .

[0085] In the present application, the third channel portion 201 includes a channel mechanism 202, and each first tooth portion 12 corresponds to a channel mechanism 202; the liquid inlet portion of the channel mechanism 202 is connected to the liquid outlet portion of the second channel portion 120 on the corresponding first tooth portion 12; the liquid outlet portion of the channel mechanism 202 is used to flow out the cooling liquid.

[0086] Optionally, the third channel portion 201 includes a plurality of channel mechanisms 202, and the plurality of channel mechanisms 202 are arranged in one-to-one correspondence with the plurality of first tooth portions 12. The liquid inlet of each channel mechanism 202 is connected to the liquid outlet of the second channel portion 120 on the corresponding first tooth portion 12; the liquid outlet of each channel mechanism 202 is used to flow out the cooling liquid, that is, the cooling liquid in each channel mechanism 202 flows out through its liquid outlet.

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

[0088] In the present application, the channel mechanism 202 also includes a third connecting channel 2023, the first end of the third connecting channel 2023 is connected to the preset opening 2022; the second end of the third connecting channel 2023 is used to flow out the cooling liquid, that is, the cooling liquid 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 passage 2023 extends to the outer wall surface of the second skeleton 20 .

[0090] In the present application, the second skeleton 20 includes a second yoke 21 and a plurality of second tooth portions 22, the second yoke 21 being a second skeleton yoke, and the second tooth portions 22 being second skeleton tooth portions; the second yoke 21 is used to be arranged corresponding to the core yoke 901; the plurality of second tooth portions 22 are used to be arranged one-to-one corresponding to the plurality of core tooth portions 902, so that when the second skeleton 20 is arranged at the second end of the stator core 90, the second end face of each core tooth portion 902 contacts the support face of the corresponding second tooth portion 22, so that each second tooth portion 22 supports the corresponding stator core 90.

[0091] Specifically, along the axial direction of the second skeleton 20, the second tooth portion 22 has a first end and a second end that are relatively arranged; the direction from the first end to the second end of the second tooth portion 22 is the same as the direction from the first end to the second end of the stator core 90; the first end surface of the second tooth portion 22 is its support surface.

[0092] Specifically, multiple first tooth portions 12 and multiple second tooth portions 22 are arranged in one-to-one correspondence, so that when the first yoke 11 is set at the first end of the stator core 90 and when the second skeleton 20 is set at the second end of the stator core 90, the second end surface of each first tooth portion 12 contacts the support surface of the corresponding second tooth portion 22.

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

[0094] Optionally, multiple channel mechanisms 202 are arranged in one-to-one correspondence with multiple second tooth portions 22, so that the connecting groove 2021 of each channel mechanism 202 is arranged on the supporting surface of the corresponding second tooth portion 22; the third connecting channels 2023 of multiple channel mechanisms 202 are all arranged on the second yoke portion 21.

[0095] Specifically, the second end of each first tooth portion 12 is located in the connecting groove 2021 on the corresponding second tooth portion 22, and the second end of each stator core 90 is located in the connecting groove 2021 on the corresponding second tooth portion 22; so that the liquid outlet ends of all the guide grooves 122 on each first tooth portion 12 are located in the connecting groove 2021 on the corresponding second tooth portion 22, so that the liquid outlet ends of all the guide grooves 122 on each first tooth portion 12 are connected with the connecting groove 2021 on the corresponding second tooth portion 22, and then the cooling liquid in all the guide grooves 122 on each first tooth portion 12 can 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 oppositely disposed; 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 surface of the second yoke 21.

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

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

[0099] Optionally, the thickness of the second tooth portion 22 is A, the depth of the connecting groove 2021 is B, 1 / 3A≤B≤2 / 3A; wherein the thickness direction of the second tooth portion 22 is parallel to the axial direction of the second skeleton 20, and the 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 the present application, a buckle portion 24 is provided on one of the second frame 20 and the stator core 90 , and a buckle hole 91 is provided on the other. The buckle portion 24 is buckled in the buckle hole 91 to relatively fix the second frame 20 and the stator core 90 .

[0102] Optionally, the buckle portion 24 is provided on the second frame 20, and the buckle hole 91 is provided on the stator core 90. Further, the buckle portion 24 is provided on the second yoke 21, and the buckle hole 91 is provided on the core yoke 901.

[0103] Optionally, there are multiple buckle parts 24 and multiple buckle holes 91, and the multiple buckle parts 24 are distributed along the circumference of the stator core 90. The multiple buckle parts 24 and the multiple buckle holes 91 are arranged one by one, so that each buckle part 24 is locked in the corresponding buckle hole 91.

[0104] Optionally, the buckle portion 24 is a convex column.

[0105] In the present application, the notch radius of the insulating frame is R1, the slot bottom radius of the insulating frame is R2; a winding slot 30 is formed between two adjacent frame teeth; the slot depth of the winding slot 30 is D, and the slot depth direction 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 frame teeth.

[0106] Specifically, the notch radius of the first frame 10 and the notch radius of the second frame 20 are equal to the notch radius of the insulating frame; the groove bottom radius of the first frame 10 and the groove bottom radius of the second frame 20 are equal to the groove bottom radius of the insulating frame; a first winding groove 124 is formed between two adjacent first tooth portions 12, a second winding groove 23 is formed between two adjacent second tooth portions 22, and the winding groove 30 includes the first winding groove 124 and the second winding groove 23; a frame tooth portion includes a first tooth portion 12 and a corresponding second tooth portion 22;

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

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

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

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

[0111] In this 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] In the insulating frame provided by the present invention, it 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, the first yoke 11 is a first frame yoke, and the first teeth 12 are first frame teeth; the first yoke 11 is used to be arranged corresponding to the core yoke 901 of the stator core 90; the plurality of first teeth 12 are used to be arranged 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 teeth 902. The stator core 90 has a first end and a second end that are arranged oppositely along its axial direction; the first yoke 11 is used to be arranged at the first end of the stator core 90, and the second frame 20 is used to be arranged at the second end of the stator core 90. A first channel portion 111 is arranged on the first yoke 11, and a third channel portion 201 is arranged on the second frame 20; a second channel portion 120 is arranged on at least one of the plurality of first teeth 12. The liquid inlet of the first channel portion 111 is used to pass the cooling liquid; the liquid outlet of the first channel portion 111 is connected with the liquid inlet of the second channel portion 120, that is, the liquid inlet of each second channel portion 120 is connected with the liquid outlet of the first channel portion 111; the liquid outlet of the second channel portion 120 is connected with the liquid inlet of the third channel portion 201, that is, the liquid outlet of each second channel portion 120 is connected with the liquid inlet of the third channel portion 201; the cooling liquid in the third channel portion 201 flows out through its liquid outlet. That is, the cooling liquid flows into the first channel portion 111 from the liquid inlet of the first channel portion 111, the cooling liquid in the first channel portion 111 flows into each second channel portion 120, the cooling liquid in each second channel portion 120 flows into the third channel portion 201, and then flows out from the liquid outlet of the third channel portion 201. 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 take away the internal heat of the stator winding, thereby playing a role in heat dissipation and cooling the stator winding, so as to reduce the accumulation of internal heat of the stator winding, thereby 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 winding, the motor efficiency is improved and the service life of the motor is extended. In addition, the second channel portion 120 also increases the distance between the winding and the core tooth portion 902, thereby improving the insulation and withstand voltage performance of the motor.

[0118] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein, for example. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units that are clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

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

[0120] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An insulating skeleton, characterized in that: include: A first skeleton (10) comprises a first yoke (11) and a plurality of first teeth (12); the first yoke (11) is used to be arranged corresponding to the core yoke (901) of the stator core (90), and the plurality of first teeth (12) are used to be arranged one-to-one corresponding to the plurality of core teeth (902) of the stator core (90), so that each of the first teeth (12) covers the corresponding core tooth (902); the first yoke (11) is used to be arranged at a first end of the stator core (90); A second frame (20) is used to be arranged at a second end of the stator core (90); Wherein, 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); a second channel portion (120) is provided on at least one of the first tooth portions (12); a liquid inlet portion of the first channel portion (111) is used for introducing cooling liquid, a liquid outlet portion of the first channel portion (111) is communicated with a liquid inlet portion of the second channel portion (120), a liquid outlet portion of the second channel portion (120) is communicated with a liquid inlet portion of the third channel portion (201), and the cooling liquid in the third channel portion (201) flows out through its liquid outlet portion; the cooling liquid flowing through the second channel portion (120) is used for cooling the stator winding.

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

3. The insulating frame according to claim 1, characterized in that: The direction from the first end to the second end of the first tooth portion (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 portion (12) has two oppositely arranged side surfaces; the second channel portion (120) comprises: A second communication channel (121) is arranged on the first end surface of the first tooth portion (12); a liquid inlet portion of the second communication channel (121) is connected to a liquid outlet portion of the first channel portion (111); A long strip-shaped guide groove (122) is arranged on the side surface of the first tooth portion (12); the liquid inlet end of the guide groove (122) is connected to the liquid outlet portion of the second connecting channel (121), and the liquid outlet end of the guide groove (122) is connected to the liquid inlet portion of the third channel portion (201).

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

5. The insulating frame according to claim 3, characterized in that: The second connecting channel (121) comprises a first section (1211) and a second section (1212) which are arranged at an angle; the first end of the first section (1211) forms a 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 a liquid outlet of the second connecting channel (121); each of the guide grooves (122) corresponds to one second section (1212).

6. The insulating frame according to claim 3, characterized in that: The first tooth portion (12) has a wrapping groove (123), and the first tooth portion (12) wraps around the corresponding iron core tooth portion (902) through the wrapping groove (123); the second connecting channel (121) passes through the groove wall of the wrapping groove (123), so that when the first tooth portion (12) wraps around the corresponding iron core tooth portion (902), the first end surface of the iron core tooth portion (902) forms the bottom wall of the second connecting channel (121).

7. The insulating skeleton according to claim 1, characterized in that: The first channel portion (111) comprises a first connecting channel (112), and each first tooth portion (12) corresponds to one first connecting channel (112); a liquid inlet end of the first connecting channel (112) is used for introducing cooling liquid, and a liquid outlet end of the first connecting channel (112) is connected to a liquid inlet end of a second channel portion (120) on the corresponding first tooth portion (12).

8. The insulating frame according to claim 7, 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) passes through the second end face of the first yoke (11), so that when the first yoke (11) is arranged 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).

9. The insulating skeleton according to claim 1, characterized in that: The third channel portion (201) comprises a channel mechanism (202), and each of the first tooth portions (12) corresponds to one of the channel mechanisms (202); a liquid inlet portion of the channel mechanism (202) is connected to a liquid outlet portion of the second channel portion (120) on the corresponding first tooth portion (12); and the liquid outlet portion of the channel mechanism (202) is used for discharging cooling liquid.

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

11. The insulating frame according to claim 10, characterized in that: The channel mechanism (202) further comprises a third communicating channel (2023), a first end of the third communicating channel (2023) being in communication with the preset opening (2022), and a second end of the third communicating channel (2023) being used for outflowing cooling liquid.

12. The insulating frame according to claim 11, characterized in that: The second skeleton (20) comprises a second yoke (21) and a plurality of second teeth (22); the second yoke (21) is used to be arranged corresponding to the core yoke (901); the plurality of second teeth (22) are used to be arranged one-to-one corresponding to the plurality of core teeth (902), so that the second end surface of each core tooth (902) contacts the supporting surface of the corresponding second tooth (22); Each of the channel mechanisms (202) corresponds to a second tooth portion (22), the connecting groove (2021) of each of the channel mechanisms (202) is arranged on a supporting surface of the corresponding second tooth portion (22), and the third connecting channel (2023) of each of the channel mechanisms (202) is arranged on the second yoke portion (21).

13. A motor, comprising a stator, characterized in that: The stator comprises a stator core (90) and an insulating frame according to any one of claims 1 to 12.

14. A compressor, characterized in that: Including the motor as claimed in claim 13.

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