Insulation skeleton, motor and compressor

Abstract

The present invention provides an insulating skeleton, a motor, and a compressor. The insulating skeleton is used in the motor and includes: a skeleton frame, the skeleton frame being provided with a through hole; a plurality of skeleton teeth provided on the skeleton frame and located within the through hole; a winding slot being formed between the skeleton frame and two adjacent skeleton teeth; the winding slot including a slot bottom located on the side of the skeleton frame facing the through hole, wherein the slot bottom is provided with a groove section. The insulating skeleton proposed in the present invention has a groove section provided at the slot bottom of the winding slot. When the motor is assembled, the insulating skeleton and the stator core are matched. When the slot insulation is provided, part of the slot insulation will be located within the groove section. When the stator core and the insulating skeleton are wound, the slot insulation is subjected to a pulling force toward the stator teeth and the skeleton teeth, and the slot insulation will be separated or partially separated from the groove section, thereby ensuring the fit between the slot insulation and the winding slot, thereby increasing the utilization space of the winding slot and improving the full slot rate of the winding.

Description

Technical Field

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

[0002] In related technologies, the slot insulation cannot be absolutely fitted to the slot during motor manufacturing. This results in the slot insulation being stretched and tightly fitted to the slot body under the influence of winding tension during winding, forming a large, long, and hollow cavity at the bottom of the slot, reducing the available area in the slot. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art.

[0004] To this end, a first aspect of the present invention provides an insulating skeleton.

[0005] A second aspect of the present invention provides a motor.

[0006] A third aspect of the present invention provides a compressor.

[0007] In view of this, according to the first aspect of the present invention, the present invention proposes an insulating skeleton for a motor, comprising: a skeleton frame, the skeleton frame is provided with a through hole; a plurality of skeleton teeth are arranged on the skeleton frame and located in the through hole, a winding groove is formed between the skeleton frame and two adjacent skeleton teeth, the winding groove includes a groove bottom, the groove bottom is located on the side of the skeleton frame facing the through hole, wherein the groove bottom is provided with a groove section.

[0008] The insulating frame proposed in the present invention is used for a motor. Specifically, the insulating frame is arranged at both ends of a stator core of the motor to provide insulation for the stator core so as to facilitate winding on the stator core to form a winding.

[0009] Among them, the insulating skeleton includes a skeleton frame, which forms a ring to cover the stator core alone, facilitating the setting of the rotor core. A plurality of skeleton teeth are provided in the through hole in the middle of the skeleton frame to cover the stator teeth of the stator core. Winding slots are formed between the skeleton frame and two adjacent skeleton teeth. The slot insulation combination of the skeleton teeth and the stator slots jointly realizes the insulation of the stator core, realizes the insulation of the winding and the stator core, and realizes the function of the motor.

[0010] Specifically, a groove section is provided on the bottom of the winding slot, that is, the portion of the skeleton frame forming the winding slot. When the motor is assembled, the insulating skeleton and the stator core cooperate. When the slot insulation is provided, part of the slot insulation will be located in the groove section. When the stator core and the insulating skeleton are wound, the slot insulation is subjected to a pulling force toward the stator teeth and the skeleton teeth. Since the slot insulation has a margin in the groove section, the slot insulation will be separated or partially separated from the groove section after being subjected to the pulling force, thereby ensuring the fit between the slot insulation and the winding slot, avoiding the formation of a gap between the slot insulation and the winding slot, thereby increasing the utilization space of the winding slot, and thereby improving the full slot rate of the winding.

[0011] In addition, the insulating frame in the above technical solution proposed by the present invention may also have the following additional technical features:

[0012] In the above technical solution, further, the groove bottom is further provided with a first straight line segment and a second straight line segment, and the first straight line segment and the second straight line segment are respectively located on both sides of the groove segment.

[0013] In this technical solution, the slot bottom is provided with a first straight line segment and a second straight line segment on both sides of the slot segment. Due to the properties of a straight line, two straight-line objects are easier to fit together than arcs. Therefore, the first straight line segment and the second straight line segment are provided on both sides of the slot segment. After the slot insulation is stretched, it can still fit well with the first straight line segment and the second straight line segment, further avoiding the formation of a gap between the slot insulation and the winding slot.

[0014] In any of the above technical solutions, further, the winding groove is an axisymmetric structure, and the symmetry axis of the winding groove extends along the radial direction of the skeleton frame.

[0015] In this technical solution, the winding slot is an axisymmetric structure, thereby making the entire insulating skeleton more symmetrical, and the skeleton teeth on both sides of the winding slot can be affected in the same beneficial way.

[0016] In any of the above technical solutions, the winding slot further includes: a first slot body, which is arranged on one side of the slot bottom, the first slot body is connected to and perpendicular to the first straight line segment; a second slot body, which is arranged on the other side of the slot bottom, the second slot body is connected to and perpendicular to the second straight line segment.

[0017] In this technical solution, the winding slot further includes a first slot body and a second slot body disposed at both ends of the slot bottom, the first slot body and the second slot body being located on opposite sides of two adjacent skeleton teeth. Furthermore, the first slot body is connected to the first straight segment and is perpendicular to the first slot body. Consequently, when the slot insulation is stretched toward the first slot body, the portion of the slot insulation that contacts the first straight segment is only subject to forces along the direction of extension of the first straight segment, further ensuring that no gaps are formed between the slot insulation and the first straight segment.

[0018] Similarly, the second slot body is connected to the second straight segment, and the second slot body and the second straight segment are perpendicular to each other. Therefore, when the slot insulation is stretched toward the second slot body, the portion of the slot insulation that fits the second straight segment is only subjected to a force along the extension direction of the second straight segment, further ensuring that no gap is generated between the slot insulation and the second straight segment.

[0019] In any of the above technical solutions, the winding groove further includes: a first groove shoulder, which is arranged at one end of the first groove body away from the groove bottom; a second groove shoulder, which is arranged at one end of the second groove body away from the groove bottom, and a groove opening is formed between the first groove shoulder and the second groove shoulder, wherein the winding groove is cross-sectioned with an axis perpendicular to the insulating frame, and in the cross-section, the width L1 of the groove opening is smaller than the distance L3 between the first straight line segment and the second straight line segment on both sides of the groove segment.

[0020] In this technical solution, the winding slot further includes a first slot shoulder and a second slot shoulder, with the first slot body and the second slot body respectively located on opposite sides of two adjacent tooth portions of the framework. Furthermore, the first slot shoulder opposes the slot bottom and is located at one end of the first slot body, while the second slot shoulder opposes the slot bottom and is located at one end of the second slot body, forming a slot opening between the first slot shoulder and the second slot shoulder.

[0021] The width of the slot, the distance between the first slot shoulder and the second slot shoulder, is smaller than the width of the slot segment, the distance between the first straight line segment and the second straight line segment, thereby ensuring that the width of the slot is small enough, ensuring that the winding slot has sufficient available internal space, and preventing the winding from escaping from the winding slot through the slot, thereby improving the full slot rate of the winding.

[0022] In any of the above technical solutions, further, it also includes: a first retaining rib, which is provided on the side of the skeleton frame facing the through hole and is located in the groove section.

[0023] In this technical solution, a first retaining rib is provided within the groove segment. The first retaining rib is located on the side of the skeleton frame facing the through hole and is further provided to protrude within the groove segment. Since the slot insulation is typically inserted by machine, the first retaining rib is provided within the groove segment to prevent the slot insulation from flying out of the other end during insertion. When the slot insulation is inserted, the first retaining rib blocks it, preventing it from flying out.

[0024] Furthermore, since the first retaining rib is arranged in the groove section, the space occupied by the first retaining rib in the internal winding slot is reduced, and the winding nozzle will not be affected by the first retaining rib, thereby increasing the slot fill rate and thus improving the efficiency of the motor.

[0025] In any of the above technical solutions, further, the winding slot is cross-sectioned with an axis perpendicular to the insulating frame, and in the cross-section, the distance between the two ends of the first rib is L2, wherein L1<L2<L3.

[0026] In this technical solution, the winding groove is cross-sectioned with an axis perpendicular to the insulating frame. In the cross-section, the distance between the two ends of the first barrier rib and the width of the first barrier rib is L2, the width of the slot L1 is smaller than the distance L2 between the two ends of the first barrier rib, and the distance L2 between the two ends of the first barrier rib is smaller than the distance L3 between the first straight segment and the second straight segment, that is, the width of the slot segment is larger than the width of the first barrier rib, thereby ensuring that the first barrier rib is completely contained in the slot segment, ensuring that the first barrier rib does not occupy the winding groove, and the width of the slot L1 is smaller than the distance L2 between the two ends of the first barrier rib, thereby ensuring that the slot has a small opening, ensuring the blocking effect of the first barrier rib on the slot insulation, and ensuring that the winding groove has sufficient space utilization.

[0027] In any of the above technical solutions, further, the winding slot is cross-sectioned with an axis perpendicular to the insulating frame. In the cross-section, along the radial direction of the frame, the height of the first retaining rib is H1, and the depth of the groove section is H2, wherein H1 <H2。

[0028] In this technical solution, the winding groove is cross-sectioned with an axis perpendicular to the insulating frame. In the cross-section, along the radial direction of the frame, the height H1 of the first rib is less than the depth H2 of the groove section, thereby ensuring that the first rib is completely set in the groove section, and then the first rib is located in the invalid area of ​​the winding groove, increasing the effective space of the winding groove, avoiding interference between the winding nozzle and the first rib, improving the full slot rate, and improving the motor performance.

[0029] In any of the above technical solutions, further, it also includes: a second retaining rib, the second retaining rib is arranged on the first groove shoulder and the second groove shoulder, and is located in the winding groove.

[0030] In this technical solution, a second retaining rib is further provided on the first slot shoulder and the second slot shoulder, that is, there are two second retaining ribs, which are respectively provided on the first slot shoulder and the second slot shoulder, and then the first retaining rib and the second retaining rib are combined to jointly block the slot insulation. Since the slot bottom is opposite to the first slot shoulder and the second slot shoulder, the first retaining rib and the second retaining rib can block the slot insulation in two opposite directions, thereby improving the blocking effect on the slot insulation, making the slot insulation evenly stressed, and avoiding curling of the slot insulation.

[0031] In any of the above technical solutions, further, the winding groove is cross-sectioned with an axis perpendicular to the insulating frame, and in the cross-section, the contour line of the groove segment is any of the following shapes: an arc, a combination of multiple straight lines, or a combination of straight lines and arcs.

[0032] In this technical solution, the winding groove is sectioned with an axis perpendicular to the insulating frame. In the section, the contour line of the groove segment is in any shape of an arc, a combination of multiple straight lines, or a combination of a straight line and an arc.

[0033] According to a second embodiment of the present invention, the present invention provides a motor, comprising: a stator core; and an insulating frame as provided in any one of the above technical solutions, wherein the insulating frame is provided at both ends of the stator core.

[0034] The motor proposed in the present invention includes the insulating frame proposed in any one of the above technical solutions, and therefore has all the beneficial effects of the insulating frame proposed in any one of the above technical solutions, which will not be listed one by one here.

[0035] In the above technical solution, further, the stator core includes: a stator yoke; a plurality of stator teeth, which are arranged on the inner ring of the stator yoke, and a stator slot is formed between the inner ring of the stator yoke and two adjacent stator teeth. The stator slot includes a stator slot bottom, and the part of the inner ring of the stator yoke located in the stator slot forms the stator slot bottom, wherein the stator slot bottom is provided with a stator slot segment, and the stator slot segment corresponds to the slot segment of the insulating frame.

[0036] In this technical solution, the stator core includes a stator yoke and a plurality of stator teeth arranged on the stator yoke. A through hole is provided in the middle of the stator yoke to form a ring. A plurality of stator teeth are provided in the through hole of the stator yoke. A stator slot is formed between the stator yoke and two adjacent stator teeth. The insulating frame and the slot insulation combination jointly realize the insulation of the stator core, realize the insulation of the winding and the stator core, and realize the function of the motor.

[0037] Specifically, a stator slot bottom of the stator slot, that is, the part of the stator yoke that forms the stator slot, is provided with a stator slot segment. When the motor is assembled, the insulating skeleton and the stator core cooperate. When the slot insulation is provided, part of the slot insulation will be located in the stator slot segment. When the stator core and the insulating skeleton are wound, the slot insulation is subjected to a pulling force toward the stator teeth and the skeleton teeth. Since the slot insulation has a margin in the stator slot segment, the slot insulation will be separated or partially separated from the stator slot segment after being subjected to the pulling force, thereby ensuring the fit of the slot insulation to the stator slot, avoiding the formation of gaps between the slot insulation and the stator slot, thereby increasing the utilization space of the stator slot, and thereby improving the full slot rate of the winding.

[0038] According to a third aspect of the present invention, the present invention proposes a compressor, comprising: an insulating frame as proposed in any one of the above technical solutions; or a motor as proposed in any one of the above technical solutions.

[0039] The compressor proposed in the present invention, such as the insulating frame proposed in any one of the above technical solutions; or the motor proposed in any one of the above technical solutions, therefore has the insulating frame proposed in any one of the above technical solutions; or all the beneficial effects of the motor proposed in any one of the above technical solutions, which are no longer stated one by one here.

[0040] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which:

[0042] Figure 1 A schematic structural diagram of an insulating skeleton provided by one embodiment of the present invention is shown;

[0043] Figure 2 A schematic structural diagram of a winding slot in an insulating frame provided by another embodiment of the present invention is shown;

[0044] Figure 3 A schematic structural diagram of a winding slot in an insulating frame provided by another embodiment of the present invention is shown.

[0045] in, Figures 1 to 3 The corresponding relationship between the reference numerals and component names is as follows:

[0046] 100 insulating skeleton, 110 skeleton frame, 120 skeleton tooth portion, 130 winding groove, 1320 groove bottom, 1322 groove segment, 1324 first straight segment, 1326 second straight segment, 1328 first groove body, 1330 second groove body, 1332 first groove shoulder, 1334 second groove shoulder, 1336 groove mouth, 140 first retaining rib, 150 second retaining rib. DETAILED DESCRIPTION

[0047] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0048] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0049] Refer to the following Figures 1 to 3 The insulating skeleton 100, the motor and the compressor provided according to some embodiments of the present invention are described.

[0050] Example 1:

[0051] like Figure 1 、 Figure 2 and Figure 3As shown, according to an embodiment of the first aspect of the present invention, the present invention provides an insulating frame 100, and the insulating frame 100 is used for a motor.

[0052] Specifically, the insulating frame 100 is disposed at both ends of the stator core of the motor to provide insulation for the stator core so as to facilitate winding wires on the stator core to form windings.

[0053] The insulating skeleton 100 includes a skeleton frame 110 and a plurality of skeleton teeth 120 disposed within the inner periphery of the skeleton frame 110. Specifically, the skeleton frame 110 is provided with a through hole, and the plurality of skeleton teeth 120 are located around the through hole. Furthermore, the skeleton frame 110 and two adjacent skeleton teeth 120 form a plurality of winding slots 130. The plurality of winding slots 130 surround the through hole and are disposed on the skeleton frame 110. In other words, the insulating skeleton 100 is formed with a plurality of winding slots 130, and the plurality of winding slots 130 are evenly distributed throughout the insulating skeleton 100. Each of the plurality of winding slots 130 has the same structure.

[0054] The winding groove 130 includes a groove bottom 1320 . The groove bottom 1320 is located on a side of the skeleton frame 110 facing the through hole. The groove bottom 1320 is provided with a groove section 1322 .

[0055] The insulating skeleton 100 provided by the present invention has a skeleton frame 110 formed into a ring to separately cover the stator core, facilitating the arrangement of the rotor core. A plurality of skeleton teeth 120 are provided in the through hole in the middle of the skeleton frame 110 to cover the stator teeth of the stator core. Winding slots 130 are formed between the skeleton frame 110 and two adjacent skeleton teeth 120. The skeleton teeth 120 and the slot insulation combination of the stator slots jointly achieve insulation of the stator core, insulation of the winding and the stator core, and the function of the motor.

[0056] Specifically, a groove section 1322 is provided on the groove bottom 1320 of the winding groove 130, that is, the portion of the skeleton frame 110 that forms the winding groove 130. When the motor is assembled, the insulating skeleton 100 and the stator core cooperate. When the slot insulation is set, part of the slot insulation will be in the groove section 1322. When the stator core and the insulating skeleton 100 are wound, the slot insulation is subjected to a pulling force toward the stator teeth and the skeleton tooth portion 120. Since the slot insulation has a margin in the groove section 1322, after being subjected to the pulling force, the slot insulation will detach or partially detach from the groove section 1322, thereby ensuring the fit between the slot insulation and the winding groove 130, avoiding the formation of gaps between the slot insulation and the winding groove 130, thereby increasing the utilization space of the winding groove 130, and thereby improving the full slot rate of the winding.

[0057] Specifically, the number of the winding slots 130 may be 4, 6, 8, 9, and so on.

[0058] Furthermore, the slot insulation may be insulating paper or insulating plastic.

[0059] Example 2:

[0060] like Figure 1 、 Figure 2 and Figure 3 As shown, based on Example 1, a first straight line segment 1324 and a second straight line segment 1326 are further provided at both ends of the groove segment 1322 of the groove bottom 1320 .

[0061] In this embodiment, the slot bottom 1320 is provided with a first straight line segment 1324 and a second straight line segment 1326 on both sides of the slot segment 1322, respectively. Due to the properties of a straight line, two straight-shaped objects are easier to fit together than arcs. Therefore, the first straight line segment 1324 and the second straight line segment 1326 are provided on both sides of the slot segment 1322, respectively. After the slot insulation is stretched, it can still fit well with the first straight line segment 1324 and the second straight line segment 1326, further avoiding the formation of a gap between the slot insulation and the winding slot 130.

[0062] Example 3:

[0063] like Figure 1 As shown, based on Example 1 or Example 2, further, the winding groove 130 is arranged in axisymmetry with respect to the X axis, and the X axis coincides with a radius of the skeleton frame 110. The X axis is the reference axis of the insulating skeleton 100. It should be noted that Figure 1 The X-axis line is shown only as an example. In the present invention, each winding slot has an X-axis line.

[0064] In this embodiment, the winding groove 130 is an axisymmetric structure, thereby making the entire insulating frame 100 more symmetrical, and the frame teeth 120 on both sides of the winding groove 130 can all be beneficially affected in the same manner.

[0065] The groove section 1322 is located between the extension line from the first straight section 1324 to the reference axis and the outer circle of the insulating frame 100 ; the groove section 1322 is located between the extension line from the second straight section 1326 to the reference axis and the outer circle of the insulating frame 100 .

[0066] Example 4:

[0067] like Figure 1 、 Figure 2 and Figure 3 As shown, based on any one of Examples 1 to 3, the winding groove 130 further includes: a first groove body 1328 arranged on one side of the groove bottom 1320, the first groove body 1328 and the first straight line segment 1324 are connected, and the first groove body 1328 and the first straight line segment 1324 are perpendicular to each other.

[0068] In this embodiment, the winding slot 130 further includes a first slot body 1328 disposed at one end of the slot bottom 1320 . The first slot body 1328 is located on one side of one of the skeleton teeth 120 .

[0069] Furthermore, the first slot body 1328 is connected to the first straight segment 1324, and the first slot body 1328 and the first straight segment 1324 are perpendicular to each other. Therefore, when the slot insulation is stretched toward the first slot body 1328, the portion of the slot insulation that is in contact with the first straight segment 1324 is only subjected to force in the extension direction of the first straight segment 1324, further ensuring that no gap is generated between the slot insulation and the first straight segment 1324.

[0070] Specifically, there is a smooth transition between the first groove body 1328 and the first straight segment 1324 .

[0071] Example 5:

[0072] like Figure 1 、 Figure 2 and Figure 3 As shown, based on any one of Examples 1 to 4, the winding slot 130 further includes: a second slot body 1330 arranged on the other side of the slot bottom 1320, the second slot body 1330 and the second straight line segment 1326 are connected, and the second slot body 1330 and the second straight line segment 1326 are perpendicular to each other.

[0073] In this embodiment, the winding slot 130 further includes a second slot body 1330 disposed at the other end of the slot bottom 1320 . The second slot body 1330 is located on one side of the other skeleton tooth portion 120 .

[0074] Furthermore, the second slot body 1330 is connected to the second straight segment 1326, and the second slot body 1330 is perpendicular to the second straight segment 1326. Therefore, when the slot insulation is stretched toward the second slot body 1330, the portion of the slot insulation that fits the second straight segment 1326 is only subjected to force along the extension direction of the second straight segment 1326, further ensuring that no gap is generated between the slot insulation and the second straight segment 1326.

[0075] Specifically, the second groove body 1330 and the second straight line segment 1326 are connected by a rounded corner.

[0076] Example 6:

[0077] like Figure 1 、 Figure 2 and Figure 3As shown, on the basis of Example 5, the winding groove 130 further includes: a first groove shoulder 1332 and a second groove shoulder 1334, the first groove shoulder 1332 is arranged at the end of the first groove body 1328 away from the groove bottom 1320; the second groove shoulder 1334 is arranged at the end of the second groove body 1330 away from the groove bottom 1320, and a groove opening 1336 is formed between the first groove shoulder 1332 and the second groove shoulder 1334, wherein the winding groove 130 is cross-sectioned with an axis perpendicular to the insulating frame 100, and in the cross-section, the width L1 of the groove opening 1336 and the minimum width of the groove 1336 are less than the distance L3 between the first straight line segment 1324 and the second straight line segment 1326 on both sides of the groove segment 1322 and the minimum distance between the first straight line segment 1324 and the second straight line segment 1326.

[0078] In this embodiment, the winding slot 130 further includes a first slot shoulder 1332 and a second slot shoulder 1334. The first slot body 1328 and the second slot body 1330 are respectively located on opposite sides of two adjacent skeleton teeth 120. Furthermore, the first slot shoulder 1332 opposes the slot bottom 1320 and is located at one end of the first slot body 1328. The second slot shoulder 1334 opposes the slot bottom 1320 and is located at one end of the second slot body 1330. A slot opening 1336 is formed between the first slot shoulder 1332 and the second slot shoulder 1334.

[0079] The width of the slot 1336, the distance between the first slot shoulder 1332 and the second slot shoulder 1334, is smaller than the distance between the first straight segment 1324 and the second straight segment 1326, which is the width of the slot segment 1322. This ensures that the width of the slot 1336 is small enough to ensure that the winding slot 130 has sufficient available internal space, thereby preventing the winding from escaping from the winding slot 130 through the slot 1336, and thereby improving the full slot rate of the winding.

[0080] Example 7:

[0081] like Figure 1 and Figure 3 As shown, based on any one of Examples 1 to 6, further comprising: a first retaining rib 140 disposed in the groove section 1322, the first retaining rib 140 extending toward the through hole.

[0082] In this embodiment, a first retaining rib 140 is provided within the groove section 1322. The first retaining rib 140 is located on the side of the skeleton frame 110 facing the through hole and is further provided to protrude within the groove section 1322. Since the slot insulation is typically inserted mechanically, i.e., the slot insulation is mechanically inserted into the winding slot, the first retaining rib 140 is provided within the groove section 1322 to prevent the slot insulation from flying out of the other end during insertion. When the slot insulation is inserted, the first retaining rib 140 blocks it from flying out.

[0083] Furthermore, since the first retaining rib 140 is disposed in the groove section 1322 , the space occupied by the first retaining rib 140 in the winding groove 130 is reduced, and the winding nozzle is not affected by the first retaining edge, thereby increasing the slot fill rate and thus improving the efficiency of the motor.

[0084] Example 8:

[0085] like Figure 3 As shown, based on Example 7, the winding slot 130 is further cross-sectioned with an axis perpendicular to the insulating frame 100. In the cross-section, the maximum distance between the two ends of the first retaining rib 140 is L2, wherein L1<L2<L3.

[0086] In this embodiment, the winding groove 130 is cross-sectioned with an axis perpendicular to the insulating frame 100. In the cross-section, the distance between the two ends of the first barrier rib 140 and the width of the first barrier rib 140 are L2, the width L1 of the slot 1336 is less than the distance L2 between the two ends of the first barrier rib 140, and the distance L2 between the two ends of the first barrier rib 140 is less than the distance L3 between the first straight segment 1324 and the second straight segment 1326, that is, the width of the groove segment 1322 is greater than the width of the first barrier rib 140, thereby ensuring that the first barrier rib 140 is completely contained in the groove segment 1322, ensuring that the first barrier rib 140 does not occupy the winding groove 130, and the width L1 of the slot 1336 is less than the distance L2 between the two ends of the first barrier rib 140, thereby ensuring that the slot 1336 has a small opening, ensuring the blocking effect of the first barrier rib 140 on the slot insulation, and ensuring that the winding groove 130 has sufficient space utilization.

[0087] Example 9:

[0088] On the basis of Example 7 or Example 8, the winding groove 130 is further cross-sectioned with the axis perpendicular to the insulating frame 100. In the cross-section, along the radial direction of the skeleton frame 110, the height of the first retaining rib 140 is the maximum height of the first retaining rib 140 H1, and the depth of the groove section 1322 is the maximum depth of the groove section 1322 H2, wherein H1 <H2。

[0089] In this embodiment, the winding groove 130 is cross-sectioned with an axis perpendicular to the insulating skeleton 100. In the cross-section, along the radial direction of the skeleton frame 110, the height H1 of the first retaining rib 140 is less than the depth H2 of the groove section 1322, thereby ensuring that the first retaining rib 140 is completely disposed in the groove section 1322, and thus the first retaining rib 140 is located in the invalid area of ​​the winding groove 130, thereby increasing the effective space of the winding groove 130, avoiding interference between the winding nozzle and the first retaining rib 140, improving the full slot rate, and improving the motor performance.

[0090] Example 10:

[0091] like Figure 1 and Figure 3 As shown, on the basis of any one of Examples 6 to 9, it further includes: a second retaining rib 150 arranged at the first groove shoulder 1332 and the second groove shoulder 1334, that is, there are two second retaining ribs 150, one second retaining rib 150 is arranged at the first groove shoulder 1332, and the other second retaining rib 150 is arranged at the second groove shoulder 1334, and the two second retaining ribs 150 are located in the winding groove 130.

[0092] In this embodiment, a second retaining rib 150 is further provided on the first slot shoulder 1332 and the second slot shoulder 1334, that is, there are two second retaining ribs 150, which are respectively provided on the first slot shoulder 1332 and the second slot shoulder 1334, and then combined with the first retaining rib 140 and the second retaining rib 150 to jointly block the slot insulation. Since the slot bottom 1320 is opposite to the first slot shoulder 1332 and the second slot shoulder 1334, the first retaining rib 140 and the second retaining rib 150 can block the slot insulation in two opposite directions, thereby improving the blocking effect on the slot insulation, making the slot insulation evenly stressed, and avoiding the slot insulation curling.

[0093] Example 11:

[0094] like Figure 1 、 Figure 2 and Figure 3 As shown, based on any one of Examples 1 to 10, the winding groove 130 is further cross-sectioned with an axis perpendicular to the insulating frame 100. In the cross-section, the contour line of the groove segment 1322 is in any of the following shapes: an arc, a combination of multiple straight lines, or a combination of straight lines and arcs.

[0095] In this embodiment, the winding groove 130 is cross-sectioned along an axis perpendicular to the insulating frame 100 . In the cross-section, the contour line of the groove segment 1322 is in any shape of an arc, a combination of multiple straight lines, or a combination of a straight line and an arc.

[0096] Specifically, the winding groove 130 is cut into a cross section perpendicular to the axis of the insulating frame 100. In the cross section, the contour line of the groove section 1322 is an arc, that is, the groove section 1322 is an arc-shaped groove.

[0097] The winding groove 130 is cut into a cross section perpendicular to the axis of the insulating frame 100. In the cross section, the contour line of the groove section 1322 is composed of a plurality of straight lines, that is, the groove section 1322 can be a trapezoidal groove, a rectangular groove, or a polygonal groove.

[0098] The winding groove 130 is cross-sectioned with an axis perpendicular to the insulating frame 100. In the cross-section, the contour line of the groove segment 1322 is a combination of straight lines and arcs, that is, the groove segment 1322 can be a groove with arcs on both sides and a straight line on the top, or a groove with straight lines on both sides and an arc-shaped top.

[0099] In other embodiments of the present invention, the groove may also have other shapes.

[0100] Example 12:

[0101] like Figure 1 、 Figure 2 and Figure 3 As shown, the present invention provides an insulating frame 100, comprising a reference axis, winding slots 130 evenly arranged along the circumferential direction, a first stopper at the slot bottom 1320 and a second stopper at the slot opening 1336 arranged on one side in the axial direction.

[0102] The winding groove 130 has a symmetrical structure along the reference axis. The winding groove 130 includes a groove opening 1336, a first groove shoulder 1332, a second groove shoulder 1334, a first groove body 1328, a second groove body 1330, and a groove bottom 1320. The groove bottom 1320 includes a first straight line segment 1324, a second straight line segment 1326 and a groove segment 1322; the groove segment 1322 is located between the extension line from the first straight line segment 1324 to the reference axis and the outer circle of the insulating frame 100.

[0103] Specifically, the minimum distance L1 between the notches 1336, the maximum distance L2 between the two ends of the first stop bar, and the minimum distance L3 between the first straight segment 1324 and the second straight segment 1326 satisfy the following conditions: L1 <L2<L3。

[0104] Specifically, the maximum height H1 of the first stopper and the maximum height H2 from the first straight segment 1324 or the second straight segment 1326 to the groove segment 1322 satisfy H1. <H2。

[0105] Specifically, the angle between the first straight segment 1324 and the first groove body 1328 is 90 degrees, and the angle between the second straight segment 1326 and the second groove body 1330 is 90 degrees.

[0106] Specifically, when winding the wire on the insulating skeleton 100 of the present invention, the slot insulation will be stretched and closely adhere to part of the first slot body 1328 or the second slot body 1330. At the same time, since the first straight segment 1324 of the slot bottom 1320 is perpendicular to the first slot body 1328, and the second straight segment 1326 is perpendicular to the second slot body 1330, the slot insulation will also closely adhere to the first straight segment 1324 and the second straight segment 1326. After the slot insulation is stretched, part of it will be inside or outside the groove segment 1322 of the groove, and it is in a straight line shape. L1 < L2 < L3 can ensure the effective utilization of the space in the winding slot 130. During automated production, the wire winding nozzle will not be affected by the first baffle, which can improve the slot filling rate and thus improve the motor efficiency. At the same time, the design of the first baffle can prevent the slot insulation from flying out when the machine inserts the slot insulation. H1 < H2 ensures that the first baffle does not occupy the effective area in the winding slot 130 and does not interfere with the wire winding nozzle, thereby improving the slot filling rate.

[0107] Further, the depression of the slot bottom 1320 is a smooth arc.

[0108] Further, the depression of the slot bottom 1320 is composed of multiple straight lines and / or arcs.

[0109] Embodiment 13:

[0110] According to the second aspect embodiment of the present invention, the present invention provides a motor, including: a stator core; an insulating skeleton 明100 provided in any one of the embodiments, and the insulating skeleton 100 is provided at both ends of the stator core.

[0111] The motor provided by the present invention includes the insulating skeleton 100 provided in any one of the embodiments. Therefore, it has all the beneficial effects of the insulating skeleton {{100}} provided in any one of the embodiments, and will not be elaborated here one by one.

[0112] Embodiment 14:

[0113] On the basis of Embodiment 13, further, the stator core includes: a stator yoke; a plurality of stator teeth provided on the inner circle of the stator yoke. A stator slot is formed between the inner circle of the stator yoke and two adjacent stator teeth. The stator slot includes a stator slot bottom, and the part of the inner circle of the stator yoke located inside the stator slot forms the stator slot bottom. Among them, a stator groove segment is provided on the stator slot bottom, and the stator groove segment corresponds to the groove segment 1322 of the insulating skeleton 100.

[0114] In this embodiment, the stator core includes a stator yoke and a plurality of stator teeth arranged on the stator yoke. A through hole is provided in the middle of the stator yoke to form a ring. A plurality of stator teeth are provided in the through hole of the stator yoke. A stator slot is formed between the stator yoke and two adjacent stator teeth. The insulating frame 100 and the slot insulation combination jointly realize the insulation of the stator core, realize the insulation of the winding and the stator core, and realize the function of the motor.

[0115] Specifically, a stator slot segment is provided at the stator slot bottom of the stator slot, that is, the part of the stator yoke that forms the stator slot. When the motor is assembled, the insulating skeleton 100 and the stator core cooperate. When the slot insulation is provided, part of the slot insulation will be located in the stator slot segment. When the stator core and the insulating skeleton 100 are wound, the slot insulation is subjected to a pulling force toward the stator teeth and the skeleton tooth portion 120. Since the slot insulation has a margin in the stator slot segment, the slot insulation will be separated or partially separated from the stator slot segment after being subjected to the pulling force, thereby ensuring the fit of the slot insulation to the stator slot, avoiding the formation of gaps between the slot insulation and the stator slot, thereby increasing the utilization space of the stator slot, and thereby improving the full slot rate of the winding.

[0116] Furthermore, the stator slots and the winding slots 130 have the same structure.

[0117] Furthermore, the slot bottom is further provided with a first stator straight segment and a second stator straight segment, and the first stator straight segment and the second stator straight segment are respectively located on both sides of the groove segment.

[0118] In this embodiment, the stator slot bottom is provided with a first stator straight segment and a second stator straight segment on either side of the stator slot segment. Due to the properties of a straight line, two straight objects are easier to fit together than arcs. Therefore, the first stator straight segment and the second stator straight segment are provided on either side of the stator slot segment. After the slot insulation is stretched, the first stator straight segment and the second stator straight segment can still fit together well, further avoiding the formation of gaps between the slot insulation and the stator slot.

[0119] Furthermore, the stator slot also includes: a first stator slot body, which is arranged on one side of the stator slot bottom, and the first stator slot body is connected to and perpendicular to the first stator straight segment; a second stator slot body, which is arranged on the other side of the stator slot bottom, and the second stator slot body is connected to and perpendicular to the second stator straight segment.

[0120] In this embodiment, the stator slot further includes: a first stator slot body provided at one end of the stator slot bottom, and the first stator slot body is located on one side of a stator tooth.

[0121] Furthermore, the first stator slot body and the first stator straight segment are connected, and the first stator slot body and the first stator straight segment are perpendicular to each other. Therefore, when the slot insulation is stretched toward the first stator slot body, the portion of the slot insulation that fits the first stator straight segment is only subjected to a force along the extension direction of the first stator straight segment, further ensuring that no gap is generated between the slot insulation and the first stator straight segment.

[0122] Specifically, there is a smooth transition between the first stator slot body and the first stator straight section.

[0123] Similarly, the stator slot further includes: a second stator slot body arranged at one end of the stator slot bottom, and the second stator slot body is located on one side of another stator tooth.

[0124] Furthermore, the second stator slot body is connected to the second stator straight segment, and the second stator slot body and the second stator straight segment are perpendicular to each other. Therefore, when the slot insulation is stretched toward the second stator slot body, the portion of the slot insulation that fits the second stator straight segment is only subjected to a force along the extension direction of the second stator straight segment, further ensuring that no gap is generated between the slot insulation and the second stator straight segment.

[0125] Specifically, there is a smooth transition between the second stator slot body and the second stator straight section.

[0126] Furthermore, by utilizing the coordination between the stator core and the insulating frame, the full slot rate of the winding slots and the stator slots is increased, thereby improving the performance of the motor.

[0127] Example 15:

[0128] According to a third aspect of the present invention, the present invention provides a compressor, comprising: the insulating skeleton 100 provided in any embodiment; or the motor provided in any embodiment.

[0129] The compressor provided by the present invention, such as the insulating skeleton 100 provided in any embodiment; or the motor provided in any embodiment, therefore, has all the beneficial effects of the insulating skeleton 100 provided in any embodiment; or the motor provided in any embodiment, which are no longer listed one by one here.

[0130] In the present invention, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "plurality" refers to two or more, unless expressly limited otherwise. Terms such as "installed," "connected," "connected," and "fixed" should be interpreted broadly. For example, "connected" can mean a fixed connection, a detachable connection, or an integral connection; "connected" can mean a direct connection or an indirect connection through an intermediary. Those skilled in the art will understand the specific meanings of these terms in the present invention based on specific circumstances.

[0131] In the description of the present invention, it should be understood that the directions or positional relationships indicated by terms such as "up", "down", "left", "right", "front" and "back" are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or unit referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limiting the present invention.

[0132] Throughout this specification, terms such as "one embodiment," "some embodiments," and "specific embodiments" mean that the specific features, structures, materials, or characteristics described in conjunction with that embodiment or example are included in at least one embodiment or example of the present invention. In this specification, schematic representations of these terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0133] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. An insulating frame for a motor, characterized in that: Comprising: A skeleton framework provided with through holes; A plurality of skeleton tooth portions provided on the skeleton framework and located within the through holes. A winding groove is formed between the skeleton framework and two adjacent skeleton tooth portions. The winding groove includes a groove bottom, and the groove bottom is located on the side of the skeleton framework facing the through hole; Wherein, the groove bottom is provided with a groove section; The insulating skeleton further comprises: A first retaining rib provided on the side of the skeleton framework facing the through hole and located within the groove section. The first retaining rib protrudes within the groove section; Taking a cross-section of the winding groove perpendicular to the axis of the insulating skeleton, on the cross-section, along the radial direction of the skeleton framework, the height of the first retaining rib is H1, and the depth of the groove section is H2, where H1 < H2. The width of the groove section is greater than the width of the first retaining rib, and the first retaining rib is entirely contained within the groove section.

2. The insulating skeleton according to claim 1, wherein: The groove bottom is further provided with a first straight section and a second straight section, and the first straight section and the second straight section are respectively located on both sides of the groove section.

3. The insulating skeleton according to claim 2, wherein: The winding groove is an axisymmetric structure, and the axis of symmetry of the winding groove extends along the radial direction of the skeleton framework.

4. The insulating frame according to claim 2, characterized in that: The winding groove further comprises: A first groove body provided on one side of the groove bottom, and the first groove body is connected to and perpendicular to the first straight section; A second groove body provided on the other side of the groove bottom, and the second groove body is connected to and perpendicular to the second straight section.

5. The insulating frame according to claim 4, characterized in that: The winding groove further comprises: A first groove shoulder provided at one end of the first groove body背离 the groove bottom; A second groove shoulder provided at one end of the second groove body背离 the groove bottom. A groove opening is formed between the first groove shoulder and the second groove shoulder, Wherein, taking a cross-section of the winding groove perpendicular to the axis of the insulating skeleton, on the cross-section, the width L1 of the groove opening is less than the distance L3 between the first straight section and the second straight section on both sides of the groove section.

6. The insulating skeleton according to claim 5, wherein: Taking a cross-section of the winding groove perpendicular to the axis of the insulating skeleton, on the cross-section, the distance between the two ends of the first retaining rib is L2, where L1 < L2 < L3.

7. The insulating frame according to claim 5 or 6, characterized in that: Further comprising: A second retaining rib provided on the first groove shoulder and the second groove shoulder and located within the winding groove.

8. The insulating skeleton according to any one of claims 1 to 6, wherein: Taking a cross-section of the winding groove perpendicular to the axis of the insulating skeleton, on the cross-section, the contour line of the groove section assumes any one of the following shapes: Arc, combination of multiple straight lines, combination of straight line and arc.

9. A motor, characterized in that: Comprising: A stator core; The insulating skeleton according to any one of claims 1 to 8, and the insulating skeleton is provided at both ends of the stator core.

10. The motor according to claim 9, characterized in that The stator core includes: A stator yoke; A plurality of stator teeth are provided on the inner ring of the stator yoke, a stator slot is formed between the inner ring of the stator yoke and two adjacent stator teeth, the stator slot includes a stator slot bottom, and a portion of the inner ring of the stator yoke located within the stator slot forms the stator slot bottom. Wherein, the stator slot bottom is provided with a stator slot segment, and the stator slot segment corresponds to the slot segment of the insulating skeleton.

11. A compressor, characterized in that: include: The insulating frame according to any one of claims 1 to 8; or A motor as claimed in claim 9 or 10.

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