Motor insulation support structure, motor and compressor

Abstract

The invention relates to the technical field of compressors, in particular to a motor insulation support structure, a motor comprising the motor insulation support structure and a compressor comprising the motor. The motor insulation support structure comprises a support and a cover plate, the support is installed on the end face of a stator iron core of a motor, the cover plate is arranged at the end, away from the stator iron core, of the support, and the cover plate comprises a cover part in butt joint with the end, away from the stator iron core, of the support and a partition part arranged on the outer periphery of the cover part. And the baffle part is sleeved on the peripheral side of the bracket and shields an enameled wire which is wired on the peripheral side of the bracket. The insulation distance between the enamelled wire and the shell can be increased, the insulation strength between the enamelled wire and the shell is effectively improved, and the product reliability is improved while the development requirement that the yoke size of the motor stator iron core is reduced is met; and the enameled wire can be protected, so that contact damage to the enameled wire is not easy to generate in the assembling process.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of compressors, in particular to a motor insulation support structure, a motor comprising the motor insulation support structure and a compressor comprising the motor. BACKGROUND

[0002] The development of the motor for the compressor has diversity, and the size of the motor has different forms. For a small motor, as the size of the motor becomes smaller, the space of the yoke part of the stator core is compressed.

[0003] As shown in Figure 1 The shell 1 of the motor is fixed on the outer circumferential surface of the stator core 2 in the form of shrinkage or welding, the insulation support 3 is installed on the end surface of the stator core 2, and the enameled wire 4 is wound on the stator teeth of the stator core 2 and the insulation support 3 at both ends of the stator core 2 to form an enameled coil. Different enameled coils need to be conducted according to the design requirements, so that after one turn of enameled wire 4 is wound, the enameled wire 4 is led out through the periphery of the insulation support 3 and enters the next winding slot for winding. The outer circumferential surface of the insulation support 3 is provided with a wire leading limiting protrusion 5 for limiting the wire leading of the enameled wire 4 on the periphery of the insulation support 3. Therefore, the distance between the enameled wire 4 and the shell 1 = the yoke part size of the stator core 2 - the wall thickness of the insulation support 3 - the diameter of the enameled wire 4. Considering the situation that the enameled wire 4 discharges to the shell 1 during the operation of the motor, the distance between the enameled wire 4 and the shell 1 is limited. When the yoke part size of the stator core 2 is small during the development of the motor, and the wall thickness of the insulation support 3 cannot be thinned to ensure the strength, the distance between the enameled wire 4 and the shell 1 is small, and the enameled wire 4 discharges to the shell 1, which seriously affects the reliability of the whole machine. Therefore, the yoke part size of the stator core 2 also has a limit value, which affects the development of the motor. SUMMARY

[0004] In view of the above defects of the prior art, the technical problem to be solved by the present application is to provide a motor insulation support structure which can increase the insulation strength between the enameled wire and the shell, so as to meet the development requirements of the motor and improve the product reliability.

[0005] In order to solve the above technical problems, the technical scheme adopted by the present application is as follows:

[0006] The present application provides a motor insulation support structure, which comprises a support and a cover plate, the support is installed on the end surface of the stator core of the motor, and the cover plate is arranged at the end of the support away from the stator core. The cover plate comprises a cover part opposite to the end of the support away from the stator core and a blocking part arranged on the outer circumferential edge of the cover part. The blocking part is sleeved on the outer circumferential side of the support and blocks the enameled wire leading on the outer circumferential side of the support.

[0007] Preferably, the outer circumferential surface of the support is provided with a wire routing limiting protrusion for limiting the enameled wire routed on the outer circumferential surface of the support, the protruding size of the wire routing limiting protrusion relative to the outer circumferential surface of the support is not less than the diameter of the enameled wire, and the inner diameter of the blocking portion is not less than the diameter of the circumferential surface of the support concentric with the blocking portion.

[0008] Preferably, the outer diameter of the blocking portion is smaller than the outer diameter of the stator core.

[0009] Preferably, a rotating fitting structure is arranged between the cover plate and the support, and the rotating fitting structure fixes the cover plate and the support by rotating the cover plate relative to the support.

[0010] Preferably, the rotating fitting structure comprises a first buckle arranged on the end of the support away from the stator core, an arc-shaped slot arranged on the cover portion in the circumferential direction of the cover plate and in plug-in fitting cooperation with the first buckle, a boss arranged on the outer circumferential surface of the support, and a clamping post arranged on the inner circumferential surface of the blocking portion and arranged opposite the boss in the circumferential direction of the support, the arc-shaped slot has a movement space for the relative rotation of the first buckle and the cover plate, the rotating direction of the cover plate relative to the support is from the upstream side to the downstream side, when the first buckle is located at the downstream side end portion of the arc-shaped slot, the clamping post is located at the upstream side of the boss and can pass through the boss in the rotating direction, and when the first buckle is located at the upstream side end portion of the arc-shaped slot, the clamping post is located at the downstream side of the boss and is in plug-in fitting cooperation with the boss.

[0011] Preferably, a first insertion slot is formed between the upstream side end portion of the first buckle and the support, and the upstream side edge portion of the arc-shaped slot is in plug-in fitting cooperation with the first insertion slot in the rotating direction.

[0012] Preferably, the upstream side wall surface of the boss is an inclined surface extending outward from the outer circumferential surface of the support and inclined to the downstream side, and the downstream side wall surface of the clamping post is an inclined surface parallel to the upstream side wall surface of the boss.

[0013] Preferably, the rotating fitting structure further comprises a second buckle arranged on the end of the support away from the stator core and a notch slot arranged on the cover plate in the circumferential direction of the cover plate and in plug-in fitting cooperation with the second buckle, the notch slot penetrates through the outer circumferential edge of the cover portion and the blocking portion, the notch slot has a movement space for the relative rotation of the second buckle and the cover plate, a second insertion slot is formed between the upstream side end portion of the second buckle and the support, and the upstream side edge portion of the notch slot is in plug-in fitting cooperation with the second insertion slot in the rotating direction.

[0014] The application also provides an electric machine comprising the electric machine insulation support structure as described above.

[0015] The application also provides a compressor comprising the electric machine as described above.

[0016] Compared with the prior art, the application has the following advantages:

[0017] The motor insulation support structure of the present application sets a barrier part on the outer periphery of the cover plate, and the enameled wire is blocked from the shell of the motor on the outer periphery side of the support through the barrier part, the air between the enameled wire and the shell is blocked, the insulation distance between the enameled wire and the shell can be increased, that is, the safety distance is increased, the insulation strength between the enameled wire and the shell is effectively increased, so that the product reliability can be improved while meeting the development requirement of reducing the yoke size of the motor stator core; at the same time, the barrier part blocks the enameled wire running on the outer periphery side of the support, and also protects the enameled wire, so that the enameled wire is not easily damaged by contact during assembly. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic diagram of the enameled wire running of the motor in the prior art.

[0019] Figure 2 is a schematic diagram of the motor insulation support structure of the embodiment of the present application.

[0020] Figure 3 is a schematic diagram of the motor insulation support structure of the embodiment of the present application.

[0021] Figure 4 is a schematic diagram of the motor insulation support structure of the embodiment of the present application.

[0022] Figure 5 is a schematic diagram of the motor insulation support structure of the embodiment of the present application. Figure 4

[0023] Figure 6 is a schematic diagram of the motor insulation support structure of the embodiment of the present application, in which the enameled wire running on the outer periphery side of the support is blocked.

[0024] Figure 7 is a schematic diagram of the motor insulation support structure of the embodiment of the present application.

[0025] Figure 8 is a schematic diagram of the motor insulation support structure of the embodiment of the present application.

[0026] Figure 9 is a schematic diagram of the motor insulation support structure of the embodiment of the present application.

[0027] Figure 10 is a schematic diagram of the motor insulation support structure of the embodiment of the present application. Figure 9

[0028] Figure 11 is a schematic diagram of the motor insulation support structure of the embodiment of the present application, in which the clamping table on the cover plate is clamped and matched with the boss on the support.

[0029] In the drawings, the reference signs are explained as follows: ​​

[0030] 1 housing

[0031] 2 stator core

[0032] 3 insulating support

[0033] 4 enameled wire

[0034] 5 wire-limiting protrusion

[0035] 100 support

[0036] 101 first buckle

[0037] 102 boss

[0038] 103 first slot

[0039] 104 second buckle

[0040] 105 second slot

[0041] 200 cover plate

[0042] 201 cover portion

[0043] 202 barrier portion

[0044] 203 arc-shaped groove

[0045] 204 clamping table

[0046] 205 gap groove DETAILED DESCRIPTION

[0047] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings. These embodiments are only used to illustrate the present application, and are not limiting to the present application.

[0048] In the description of the present application, it should be noted that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance.

[0049] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integral connection; it can be mechanical connection, or electrical connection; it can be direct connection, or indirect connection through intermediate medium, or internal communication of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In addition, in the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specified.

[0051] As shown in Figures 2 to 11 , an embodiment of the motor insulation support structure provided by the present application.

[0052] Referring to Figures 2 to 6 , the motor insulation support structure of the embodiment comprises a support 100 and a cover plate 200. The support 100 is mounted on the end face of the stator core 2 of the motor for winding the enameled wire 4, and the support 100 is made of insulating material. The cover plate 200 is arranged at the end of the support 100 away from the stator core 2. The cover plate 200 comprises a cover part 201 and a blocking part 202. The cover part 201 is in abutment with the end of the support 100 away from the stator core 2, for covering the end of the support 100 away from the stator core 2. The blocking part 202 is arranged at the outer periphery of the cover part 201, the blocking part 202 is sleeved on the outer peripheral side of the support 100, and the blocking part 202 blocks the enameled wire 4 running on the outer peripheral side of the support 100. Thus, the blocking part 202 of the cover plate 200 blocks the enameled wire 4 on the outer peripheral side of the support 100 from the shell 1 of the motor, blocks the air between the enameled wire 4 and the shell 1, and can increase the insulation distance between the enameled wire 4 and the shell 1, i.e. increase the safety distance, effectively increase the insulation strength between the enameled wire 4 and the shell 1, so as to meet the development demand of reducing the yoke size of the motor stator core 2 while improving the product reliability; at the same time, the blocking part 202 blocks the enameled wire 4 running on the outer peripheral side of the support 100, which also protects the enameled wire 4, so that the enameled wire 4 is not easily damaged by contact during assembly.

[0053] Referring to Figure 5 and Figure 6Preferably, the outer circumferential surface of the support 100 is provided with a wire limiting protrusion 5, which is used to limit the enameled wire 4 running on the outer circumferential side of the support 100. The protruding size of the wire limiting protrusion 5 relative to the outer circumferential surface of the support 100 is not less than the diameter of the enameled wire 4, so that the enameled wire 4 can be entirely accommodated in the limiting space defined by the wire limiting protrusion 5 on the outer circumferential surface of the support 100. The inner diameter of the blocking portion 202 is not less than the diameter of the circumferential surface concentric with the support 100 on which the side edge of the wire limiting protrusion 5 away from the support 100 is located, so that the blocking portion 202 can be sleeved on the wire limiting protrusion 5 to shield the enameled wire 4. Preferably, the inner diameter of the blocking portion 202 is greater than the diameter of the circumferential surface concentric with the support 100 on which the side edge of the wire limiting protrusion 5 away from the support 100 is located, so that the blocking portion 202 and the wire limiting protrusion 5 are in clearance fit, thereby facilitating the assembly of the cover plate 200 and the support 100.

[0054] Referring to Figure 5 and Figure 6 Preferably, the outer diameter of the blocking portion 202 of the cover plate 200 is less than the outer diameter of the stator core 2, so that the blocking portion 202 is located between the support 100 and the shell 1 sleeved on the outer circumferential surface of the stator core 2, thereby blocking the enameled wire 4 running on the outer circumferential side of the support 100 from the shell 1 of the motor.

[0055] In this embodiment, preferably, a rotary fit structure is provided between the cover plate 200 and the support 100, which fixes the cover plate 200 and the support 100 by rotating the cover plate 200 relative to the support 100. Since the blocking portion 202 is added to the outer circumferential edge of the cover plate 200 to increase the safety distance between the enameled wire 4 and the shell 1 to meet the development requirement of reducing the size of the yoke portion of the motor stator core 2, the thickness of the blocking portion 202 is thin and the extension is long. If the traditional structure of the cover plate 200 and the support 100 is used for assembly and fixation of the cover plate 200 and the support 100 in the axial extrusion type, the blocking portion 202 is easily broken or damaged. In this embodiment, the rotary fit structure is used to fix the cover plate 200 and the support 100 by rotating the cover plate 200 relative to the support 100, which avoids extruding the blocking portion 202 in the axial direction and can ensure the fit strength while avoiding the blocking portion 202 from being broken or damaged.

[0056] Referring to Figure 1 , Figures 7 to 11, preferably, the rotation matching structure comprises the first clasp 101, the arc-shaped slot 203, the boss 102 and the clamping post 204. The first clasp 101 is arranged on the end of the support 100 away from the stator core 2, the arc-shaped slot 203 is arranged on the cover portion 201 of the cover plate 200, the arc-shaped slot 203 extends along the circumferential direction of the cover plate 200, the arc-shaped slot 203 is insertedly matched with the first clasp 101, and the arc-shaped slot 203 has a clearance between the two ends of the arc-shaped slot 203 for the relative rotation of the first clasp 101 and the cover plate 200. The boss 102 is arranged on the outer circumferential surface of the support 100, the clamping post 204 is arranged on the inner circumferential surface of the blocking portion 202, and the clamping post 204 is arranged opposite to the boss 102 along the circumferential direction of the support 100. The rotation matching structure realizes the fixation of the cover plate 200 and the support 100 by the relative rotation of the cover plate 200 and the support 100, and the rotation direction of the cover plate 200 relative to the support 100 is from the upstream side to the downstream side, preferably, the rotation direction of the cover plate 200 relative to the support 100 is counterclockwise. When the first clasp 101 is located at the downstream side end of the arc-shaped slot 203, the clamping post 204 is located at the upstream side of the boss 102 and can pass through the boss 102 along the rotation direction; when the first clasp 101 is located at the upstream side end of the arc-shaped slot 203, the clamping post 204 is located at the downstream side of the boss 102 and is insertedly matched with the boss 102. During assembly, the cover plate 200 is initially fixed by sleeving the cover plate 200 and the support 100, so that the cover portion 201 is connected to the end of the support 100 away from the stator core 2, the arc-shaped slot 203 is insertedly matched with the first clasp 101, the first clasp 101 is located at the downstream side end of the arc-shaped slot 203, the blocking portion 202 is sleeved on the outer circumferential side of the support 100, and the clamping post 204 is located at the upstream side of the boss 102; then the cover plate 200 is rotated along the rotation direction, the arc-shaped slot 203 is rotated from the upstream side to the downstream side relative to the first clasp 101, so that the first clasp 101 is changed from being located at the downstream side end of the arc-shaped slot 203 to being located at the upstream side end of the arc-shaped slot 203, and the clamping post 204 is rotated from the upstream side of the boss 102 to the downstream side of the boss 102 relative to the boss 102 and passes through the boss 102 to reach the downstream side of the boss 102. When the first clasp 101 abuts against the upstream side end of the arc-shaped slot 203, the first clasp 101 prevents the cover plate 200 from continuing to rotate along the rotation direction; when the clamping post 204 is insertedly matched with the boss 102 at the downstream side of the boss 102, the boss 102 prevents the cover plate 200 from being reversely rotated. Therefore, the fixation of the cover plate 200 and the support 100 can be realized.

[0057] Referring to Figure 1 and Figure 7 , preferably, the first insertion slot 103 is formed between the upstream side end of the first clasp 101 and the support 100, and the upstream side edge of the arc-shaped slot 203 is insertedly matched with the first insertion slot 103 along the rotation direction, so that the first clasp 101 prevents the cover plate 200 from continuing to rotate along the rotation direction.

[0058] Referring to Figure 7 ,Figure 10 and Figure 11 Preferably, the upstream side wall surface of the boss 102 is a slanted surface extending outward from the outer circumferential surface of the support 100 and inclined downwardly to the downstream side, and the downstream side wall surface of the clamping boss 204 is a slanted surface parallel to the upstream side wall surface of the boss 102. Thus, when the clamping boss 204 rotates from the upstream side of the boss 102 to the downstream side of the boss 102 and passes through the boss 102, the downstream side wall surface of the clamping boss 204 is in slanted surface sliding contact with the upstream side wall surface of the boss 102, so that the clamping boss 204 can pass through the boss 102 to reach the downstream side of the boss 102.

[0059] Referring to Figure 7 , Figure 10 and Figure 11 Preferably, the downstream side wall surface of the boss 102 is a vertical surface extending radially outward from the outer circumferential surface of the support 100, and the upstream side wall surface of the clamping boss 204 is a vertical surface parallel to the downstream side wall surface of the boss 102. Thus, after the clamping boss 204 passes through the boss 102 to reach the downstream side of the boss 102, the upstream side wall surface of the clamping boss 204 can be in abutting contact with the downstream side wall surface of the boss 102, so that the clamping boss 204 is clamped with the boss 102 at the downstream side of the boss 102.

[0060] Referring to Figure 1 , Figures 7 to 9Preferably, the rotating fitting structure further comprises a second buckle 104 and a notch groove 205. The second buckle 104 is arranged on the end of the support 100 away from the stator core 2, and the notch groove 205 is arranged on the cover plate 200 and extends along the circumference of the cover plate 200. The notch groove 205 penetrates the outer periphery of the cover part 201 and the blocking part 202 of the cover plate 200. The notch groove 205 is arranged at a position avoiding the enameled wire 4 running on the outer periphery of the support 100. The notch groove 205 is inserted and fitted with the second buckle 104, and the notch groove 205 has a moving space for the relative rotation of the second buckle 104 and the cover plate 200. A second insertion slot 105 is formed between the upstream end of the second buckle 104 and the support 100, and the upstream edge of the notch groove 205 is inserted and fitted with the second insertion slot 105 in the rotating direction. The dimension of the second insertion slot 105 extending along the circumference of the cover plate 200 is greater than the dimension of the first insertion slot 103 extending along the circumference of the cover plate 200. During the assembly process, when the cover plate 200 is initially fixed by sleeving the cover plate 200 with the support 100, the notch groove 205 is inserted and fitted with the second buckle 104, and the second buckle 104 is located at the downstream end of the notch groove 205. Then, the cover plate 200 is rotated to the position in the rotating direction, so that the first buckle 101 is changed from being located at the downstream end of the arc-shaped groove 203 to being located at the upstream end of the arc-shaped groove 203. When the clamping table 204 rotates from the upstream side of the boss 102 to the downstream side of the boss 102 and passes through the boss 102 to be clamped into the downstream side of the boss 102, the second buckle 104 is changed from being located at the downstream end of the notch groove 205 to being located at the upstream end of the notch groove 205. At the same time, the upstream edge of the notch groove 205 is inserted and fitted with the second insertion slot 105, thereby limiting the cover plate 200 and preventing the cover plate 200 from continuing to rotate in the rotating direction. The boss 102 prevents the cover plate 200 from rotating in the reverse direction, so that the cover plate 200 is fixed with the support 100 in the circumferential direction. At the same time, the upstream edge of the notch groove 205 of the cover plate 200 is inserted into the second insertion slot 105 between the upstream end of the second buckle 104 and the support 100, so that the cover plate 200 is fixed with the support 100 in the axial direction. Thus, the cover plate 200 and the support 100 are fixed.

[0061] In the embodiment, a plurality of first buckles 101 and a plurality of second buckles 104 can be arranged on the end of the support 100 away from the stator core 2. The plurality of first buckles 101 and the plurality of second buckles 104 are alternately and spacedly arranged along the circumference of the support 100. Correspondingly, a plurality of arc-shaped grooves 203 and a plurality of notch grooves 205 are alternately and spacedly arranged along the circumference of the cover plate 200. The plurality of arc-shaped grooves 203 are arranged in one-to-one correspondence with the plurality of first buckles 101, and the plurality of notch grooves 205 are arranged in one-to-one correspondence with the plurality of second buckles 104.

[0062] Based on the motor insulation support structure of the application, the embodiment of the application further provides a motor. The motor of the embodiment comprises the motor insulation support structure of the embodiment.

[0063] Based on the motor of the application, the embodiment of the application further provides a compressor, and the compressor of the embodiment comprises the motor of the above-mentioned embodiment.

[0064] The above-mentioned is only the preferred embodiment of the application, and it should be pointed out that, for the ordinary skilled in the art, several improvements and replacements can be made without departing from the technical principles of the application, and these improvements and replacements should also be considered as the protection scope of the application.

Claims

1. An electrical machine insulation support structure, characterized by, The bracket (100) is installed on the end face of the stator core (2) of the motor, and the cover plate (200) is arranged at the end of the bracket (100) away from the stator core (2). The cover plate (200) comprises a cover part (201) opposite to the end of the bracket (100) away from the stator core (2) and a blocking part (202) arranged at the outer periphery of the cover part (201). The blocking part (202) is sleeved on the outer periphery of the bracket (100) and blocks the enameled wire (4) running on the outer periphery of the bracket (100).

2. The motor insulation support structure of claim 1, wherein, The outer periphery of the bracket (100) is provided with a wire running limiting protrusion (5) for limiting the enameled wire (4) running on the outer periphery of the bracket (100). The protruding size of the wire running limiting protrusion (5) relative to the outer periphery of the bracket (100) is not less than the diameter of the enameled wire (4). The inner diameter of the blocking part (202) is not less than the diameter of the circumference concentric with the bracket (100) where the side of the wire running limiting protrusion (5) away from the bracket (100) is located.

3. The motor insulation support structure of claim 1, wherein, The outer diameter of the blocking part (202) is smaller than the outer diameter of the stator core (2).

4. The motor insulation support structure of any one of claims 1 to 3, wherein, A rotation cooperation structure is arranged between the cover plate (200) and the bracket (100). The rotation cooperation structure realizes the fixation of the cover plate (200) and the bracket (100) by the rotation of the cover plate (200) relative to the bracket (100).

5. The motor insulation support structure of claim 4, wherein, The rotation cooperation structure comprises a first buckle (101) arranged at the end of the bracket (100) away from the stator core (2), an arc-shaped groove (203) arranged on the cover part (201) along the circumferential direction of the cover plate (200) and insertedly cooperating with the first buckle (101), a boss (102) arranged on the outer periphery of the bracket (100), and a clamping table (204) arranged on the inner periphery of the blocking part (202) and oppositely arranged with the boss (102) along the circumferential direction of the bracket (100). The arc-shaped groove (203) has a moving space for the relative rotation of the first buckle (101) and the cover plate (200). The rotation direction of the cover plate (200) relative to the bracket (100) is from the upstream side to the downstream side. When the first buckle (101) is located at the downstream side end of the arc-shaped groove (203), the clamping table (204) is located at the upstream side of the boss (102) and can pass through the boss (102) along the rotation direction. When the first buckle (101) is located at the upstream side end of the arc-shaped groove (203), the clamping table (204) is located at the downstream side of the boss (102) and is insertedly cooperated with the boss (102).

6. The motor insulation support structure of claim 5, wherein, A first insertion slot (103) is formed between the upstream side end of the first buckle (101) and the bracket (100). The upstream side edge of the arc-shaped groove (203) is insertedly cooperated with the first insertion slot (103) along the rotation direction.

7. The motor insulation support structure of claim 5, wherein, An upstream side wall surface of the boss (102) is a slope surface extending outward from an outer peripheral surface of the support (100) and inclined downward in a downstream side, and a downstream side wall surface of the clamping boss (204) is a slope surface parallel to the upstream side wall surface of the boss (102).

8. The motor insulation support structure of claim 5, wherein, The rotation fitting structure further comprises a second clamping buckle (104) provided on an end of the support (100) away from the stator core (2) and a notch groove (205) provided on the cover plate (200) along a circumferential direction of the cover plate (200) and in plug-in fitting cooperation with the second clamping buckle (104), the notch groove (205) penetrating through an outer peripheral edge of the cover portion (201) and the barrier portion (202), the notch groove (205) having a movable space for relative rotation of the second clamping buckle (104) and the cover plate (200), and a second insertion groove (105) being formed between an upstream side end portion of the second clamping buckle (104) and the support (100), the upstream side edge portion of the notch groove (205) being in plug-in fitting cooperation with the second insertion groove (105) in the rotation direction.

9. An electric machine characterized by An electric machine comprising an electric machine insulation support structure according to any one of claims 1 to 8.

10. A compressor characterized by, An electric machine comprising an electric machine insulation support structure according to claim 9.

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