CN212784966U - Motor rear end structure and hybrid power motor - Google Patents

Abstract

The utility model relates to a motor rear end structure and hybrid motor, the motor rear end structure includes rear end cap structure, rotary transformer end cap structure and rotary transformer structure, the rear end cap structure includes the rear end cap main part, set up the pivot mounting hole that is located its center in the rear end cap main part and along the radial of rear end cap main part from the pivot mounting hole to the end cap groove that the rear end cap main part outer peripheral face direction set up extends; the rotary variable end cover structure comprises a rotary variable cover main body and a rotary variable cover support body, wherein the rotary variable cover main body is covered at a rotating shaft mounting hole of the rear end cover main body, the rotary variable cover support body is connected with the rotary variable cover main body and is covered at an end cover groove, the rotary variable end cover structure covers the rotating shaft mounting hole and the end cover groove to form a rotary variable cavity, and the rotary variable cover main body is provided with a rotary variable cover hole; the rotary variable structure is arranged in the rotary variable cavity; the rotary transformer structure comprises a rotary transformer stator arranged in the rotating shaft mounting hole and a stator lead connected to the rotary transformer stator; the motor rear end structure is simple, convenient and compact in overall structure, and the installation of the rotary transformer structure is realized on the premise of ensuring power output.

Description

Motor rear end structure and hybrid power motor

Technical Field

The utility model relates to an automobile motor technical field, in particular to motor rear end structure and hybrid motor.

Background

In recent years, electric vehicles are more and more paid attention to by the public due to the characteristics of energy conservation and environmental protection, but the cruising ability of pure electric vehicles is bottleneck due to the development of battery technology, and hybrid electric vehicles are widely popularized in the field of commercial vehicles due to the long cruising ability and environmental protection.

The traditional motor is output by a single-side shaft, the output shaft end is sealed through an oil seal, and the other end does not output power, so that the motor shaft does not need to extend out of a rear end cover, oil is prevented from escaping out through oil seal sealing in the motor shaft, and the rotary transformer is integrally sealed through the end cover in the outer part; the hybrid motor is output by a double-side shaft, the front end of the hybrid motor is connected with an engine, the rear end of the hybrid motor is connected with a gearbox, the sealing mode of the front end of the motor is consistent with that of a traditional motor, and the rear end of the hybrid motor needs to realize the mounting, wire outlet, integral sealing and the like of rotary transformer on the premise of ensuring power output. However, the rear end structure of the existing hybrid motor is complex in overall structure and not compact in structure, and is not beneficial to arrangement on an electric automobile.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a motor rear end structure and hybrid motor, overall structure is simple and convenient compact, has guaranteed the installation that has realized the rotary transformer structure under the power take off prerequisite.

On one hand, the embodiment of the utility model provides a motor rear end structure, including rear end cap structure, rotary transformer end cap structure and rotary transformer structure, rear end cap structure includes the rear end cap main part, set up the pivot mounting hole that is located its center and along the radial of rear end cap main part from the pivot mounting hole to the end cap groove that rear end cap main part outer peripheral face direction extended setting on the rear end cap main part; the rotary variable end cover structure comprises a rotary variable cover main body and a rotary variable cover support body, wherein the rotary variable cover main body is covered at the rotating shaft mounting hole of the rear end cover main body, the rotary variable cover support body is connected with the rotary variable cover main body and covers the end cover groove, the rotary variable cover structure covers the rotating shaft mounting hole and the end cover groove and is a rotary variable cavity, a rotary variable cover hole is formed in the rotary variable cover main body, and the rotary variable cover hole is communicated with the rotary variable cavity; the rotary variable structure is arranged in the rotary variable cavity; the rotary transformer structure comprises a rotary transformer stator arranged in the rotating shaft mounting hole and a stator lead connected to the rotary transformer stator, and the stator lead is arranged in an end cover groove.

In some embodiments, the rear end cover body, the spiral variable cover body and the spiral variable structure are provided with a stator axial limiting structure and a stator circumferential limiting structure, the stator axial limiting structure is used for limiting the spiral variable structure from the axial direction, and the stator circumferential limiting structure is used for limiting the spiral variable structure from the circumferential direction.

In some embodiments, the stator axial limiting structure includes a first limiting step protruding from an inner wall surface of the rotating shaft mounting hole of the rear end cover main body, and a second limiting step protruding from an inner wall surface of the rotating cover hole of the rotating cover main body, the first limiting step is disposed along a circumferential direction of the rotating shaft mounting hole, the second limiting step is disposed along the circumferential direction of the rotating cover hole, and the second limiting step and the first limiting step are respectively disposed opposite to each other at two end surfaces of the rotating stator.

In some embodiments, the stator circumferential limiting structure includes at least one first limiting protrusion disposed on an inner wall surface of the rotating shaft mounting hole of the rear end cover main body, at least one first limiting groove is disposed on an outer circumferential surface of the rotary transformer stator, the first limiting protrusion is disposed along an axial extension of the rotating shaft mounting hole, the first limiting groove is disposed along the axial extension of the rotary transformer stator, and the first limiting protrusions are clamped in the first limiting grooves in a one-to-one correspondence manner; alternatively, the first and second electrodes may be,

the stator circumference limit structure comprises at least one second limit groove arranged on the inner wall surface of the rotating shaft mounting hole of the rear end cover main body, at least one second limit protrusion is arranged on the outer peripheral surface of the rotary transformer stator, the second limit groove is arranged along the axial extension of the rotating shaft mounting hole, the limit groove is arranged along the axial extension of the rotary transformer stator, and the second limit protrusions are clamped in the second limit grooves in a one-to-one correspondence manner.

In some embodiments, the stator circumferential limiting structure includes a limiting protrusion disposed on an inner wall surface of the rotating shaft mounting hole of the rear end cover main body, a limiting groove is disposed on an outer circumferential surface of the rotating stator, the limiting protrusion is disposed along an axial extension of the rotating shaft mounting hole, the limiting groove is disposed along the axial extension of the rotating stator, and the limiting protrusion is correspondingly clamped in the limiting groove.

In some embodiments, the stator circumferential limit structure comprises a circumferential limit ring protruding from the spin cover body, and the spin stator is embedded in the circumferential limit ring.

In some embodiments, the rear end cover structure is provided with a plurality of screw connection seats arranged along the periphery of the rotating shaft mounting hole and the end cover groove, the peripheries of the rotary transformer cover main body and the rotary transformer cover support body are protrusively provided with screw connection plates, and the screw connection plates are fixedly connected with the screw connection seats through screws.

In some embodiments, a seal ring is disposed between the rear end cover structure and the rotary end cover structure, and the shape of the seal ring corresponds to the shape of the rotating shaft mounting hole and the shape of the end cover groove.

In some embodiments, the motor rear end structure includes an oil seal disposed in the rotating transformer cover hole, and the oil seal is blocked outside the end face of the rotating transformer stator.

On the other hand, the embodiment of the utility model provides a hybrid motor, locate including motor shaft and cover the motor shaft outside motor rear end structure.

The utility model provides a beneficial effect that technical scheme brought includes: the rotary transformer stator is arranged in a rotary shaft mounting hole formed in the rear end cover main body, a stator lead on the rotary transformer stator is arranged in an end cover groove on the rear end cover structure, and the rotary transformer structure is integrally arranged in a rotary transformer cavity formed by covering the rotary shaft mounting hole and the end cover groove with the rotary transformer end cover structure; it should be noted that the rotating shaft mounting hole is used for mounting the motor shaft in a penetrating manner, so that the whole structure of the rear end structure of the motor is simple, convenient and compact, and the mounting of the rotary transformer structure is realized on the premise of ensuring the power output of the motor shaft.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic perspective view of a rear end structure of a motor according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of a rear end structure of a motor according to an embodiment of the present invention;

fig. 3 is a schematic front view of a rear end structure of a motor according to an embodiment of the present invention;

fig. 4 is a schematic perspective view of a rotary structure according to an embodiment of the present invention;

fig. 5 is a schematic rear view of the rotary variable end cap structure according to the embodiment of the present invention;

fig. 6 is a schematic cross-sectional structure view of a rear end structure of a motor according to an embodiment of the present invention;

fig. 7 is a schematic perspective view of a hybrid motor according to an embodiment of the present invention.

In the figure: 1. a rear end cap structure; 10. a rear end cap body; 100. a first limit step; 101. a first limit protrusion; 11. a rotating shaft mounting hole; 12. an end cover groove; 13. a screw connection seat; 2. a rotationally variable end cap structure; 20. a rotation-variable cover main body; 200. a second limit step; 201. a circumferential limit ring; 21. a rotationally variable cover support; 22. a rotary variable cover hole; 23. a screw connecting plate; 3. a rotary variable structure; 30. a rotary transformer stator; 300. a first limit groove; 31. a stator lead; 4. a seal ring; 5. oil sealing; 6. a motor shaft.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

See fig. 1, 2; the embodiment of the utility model provides a motor rear end structure, which comprises a rear end cover structure 1, a rotary transformer end cover structure 2 and a rotary transformer structure 3; the rear end cover structure 1 comprises a rear end cover main body 10, wherein a rotating shaft mounting hole 11 positioned in the center of the rear end cover main body 10 and an end cover groove 12 extending from the rotating shaft mounting hole 11 to the peripheral surface of the rear end cover main body 10 along the radial direction of the rear end cover main body 10 are formed in the rear end cover main body 10; the rotary variable end cover structure 2 comprises a rotary variable cover main body 20 and a rotary variable cover support body 21, wherein the rotary variable cover main body 20 is arranged at the position of the rotary shaft mounting hole 11 of the rear end cover main body 10 in a covering mode, the rotary variable cover support body 21 is connected with the rotary variable cover main body 20 and is arranged at the position of the end cover groove 12 in a covering mode, the rotary variable cover structure 2 covers the rotary shaft mounting hole 11 and the end cover groove 12 to form a rotary variable cavity, a rotary variable cover hole 22 is formed in the rotary variable cover main body 20, and the rotary variable cover hole 22 is communicated with the rotary variable cavity; the rotary variable structure 3 is arranged in the rotary variable cavity; the resolver structure 3 includes a resolver stator 30 installed in the rotation shaft installation hole 11, and a stator lead 31 connected to the resolver stator 30, the stator lead 31 being installed in the end cover groove 12.

Referring to fig. 3, by installing the rotation-change stator 30 in the rotation shaft installation hole 11 formed in the rear end cover main body 10, the stator lead 31 on the rotation-change stator 30 is installed in the end cover groove 12 on the rear end cover structure 1, and at this time, the rotation-change structure 3 is integrally installed in a rotation-change cavity formed by the rotation shaft installation hole 11 and the end cover groove 12 covered by the rotation-change end cover structure 2; it should be noted that the rotating shaft mounting hole 11 is used for mounting the motor shaft 6 in a penetrating manner, so that the overall structure of the rear end structure of the motor is simple, convenient and compact, and the mounting of the rotating structure 3 is realized on the premise of ensuring the power output of the motor shaft 6.

Optionally, the rear end cover main body 10, the rotary transformer cover main body 20 and the rotary transformer structure 3 are provided with a stator axial limiting structure and a stator circumferential limiting structure, the stator axial limiting structure is used for limiting the rotary transformer structure 3 in the axial direction, and the stator circumferential limiting structure is used for limiting the rotary transformer structure 3 in the circumferential direction.

Because rotary variable structure 3 installs in the rotary variable cavity, when motor shaft 6 rotates, can drive rotary variable structure 3 rotatory, even motor shaft 6 does not rotate, this rotary variable structure 3 also can have the condition of displacement in the rotary variable cavity, for making rotary variable structure 3 install the back in the rotary variable cavity and not displace, consequently, need set up the stator axial limit structure and the stator circumference of this rotary variable structure 3 spacing, can restrict rotary variable structure 3's axial displacement and circumferential displacement through stator axial limit structure and stator circumference are spacing, guarantee that this rotary variable structure 3 can not influence the operating condition of motor because of random displacement after installing at the rotary variable cavity.

Optionally, in order to enable the stator axial limiting structure to limit the rotating structure 3 from the axial direction; the stator axial limiting structure comprises a first limiting step 100 and a second limiting step 200, wherein the first limiting step 100 is arranged on the inner wall surface of a rotating shaft mounting hole 11 of the rear end cover main body 10 in a protruding mode, the second limiting step 200 is arranged on the inner wall surface of a rotating cover hole 22 of the rotating cover main body 20 in a protruding mode, the first limiting step 100 is arranged along the circumferential direction of the rotating shaft mounting hole 11, the second limiting step 200 is arranged along the circumferential direction of the rotating cover hole 22, and the second limiting step 200 and the first limiting step 100 are arranged outside two end surfaces of the rotating stator 30 respectively and oppositely; it should be noted that the first limiting step 100 and the second limiting step 200 are both hollow structures, which is convenient for the installation of the motor shaft 6; therefore, the first and second limit steps 100 and 200 hold both ends of the rotary transformer 30, so that the rotary transformer 30 cannot be displaced in the axial direction.

Optionally, in order to make the stator circumferential limiting structure limit the rotational structure 3 from the circumferential direction, the specific structural form of the stator circumferential limiting structure has the following three types:

first, referring to fig. 4, in the embodiment of the present invention, the stator circumferential limiting structure includes at least one first limiting protrusion 101 disposed on an inner wall surface of the rotating shaft mounting hole 11 of the rear end cover main body 10, at least one first limiting groove 300 is disposed on an outer circumferential surface of the rotary transformer 30, the first limiting protrusion 101 is disposed along an axial extension of the rotating shaft mounting hole 11, the first limiting groove 300 is disposed along an axial extension of the rotary transformer 30, and the first limiting protrusions 101 are clamped in the first limiting grooves 300 in a one-to-one correspondence manner; therefore, the rotary transformer stator 30 can be firmly clamped and assembled in the rotary transformer cavity through the clamping effect between the first limiting protrusion 101 and the first limiting groove 300, and cannot be circumferentially displaced.

Secondly, in the embodiment of the present invention, the stator circumferential limiting structure includes at least one second limiting groove disposed on the inner wall surface of the rotating shaft mounting hole 11 of the rear end cover main body 10, at least one second limiting protrusion is disposed on the outer circumferential surface of the rotary transformer 30, the second limiting groove is disposed along the axial extension of the rotating shaft mounting hole 11, the limiting groove is disposed along the axial extension of the rotary transformer 30, and the second limiting protrusions are clamped in the second limiting groove in a one-to-one correspondence manner; therefore, the spiral transformer stator 30 can be firmly clamped in the spiral transformer cavity through the clamping assembly effect between the second limiting groove and the second limiting protrusion, and circumferential displacement cannot be achieved.

In order to save the production cost of the rear end structure of the motor and simplify the production process of the rear end structure of the motor; the stator circumferential limiting structure comprises a limiting bulge arranged on the inner wall surface of the rotating shaft mounting hole 11 of the rear end cover main body 10, a limiting groove is arranged on the outer circumferential surface of the rotary transformer stator 30, the limiting bulge is arranged along the axial extension of the rotating shaft mounting hole 11, the limiting groove is arranged along the axial extension of the rotary transformer stator 30, and the limiting bulge is correspondingly clamped in the limiting groove; meanwhile, one limiting groove may be provided on the inner wall surface of the rotating shaft mounting hole 11, and one limiting protrusion may be provided on the outer circumferential surface of the rotational stator 30.

Thirdly, referring to fig. 5, in the embodiment of the present invention, the stator circumferential limiting structure includes a circumferential limiting ring 201 protruding from the rotational cover main body 20, and the rotational stator 30 is embedded in the circumferential limiting ring 201; it should be noted that the circumferential limiting ring 201 is a hollow structure, which is convenient for the installation of the motor shaft 6; because the rotary transformer stator 30 is embedded in the circumferential limiting ring 201, the rotary transformer stator 30 can be firmly clamped in the rotary transformer cavity and cannot be circumferentially displaced.

Optionally, in order to make the rotary variable end cover structure 2 cover the rotating shaft mounting hole 11 and the end cover groove 12; the rear end cover structure 1 is provided with a plurality of screw connecting seats 13 arranged along the periphery of the rotating shaft mounting hole 11 and the end cover groove 12, screw connecting plates 23 are convexly arranged on the peripheries of the rotary transformer cover main body 20 and the rotary transformer cover support body 21, and the screw connecting plates 23 and the screw connecting seats 13 are fixedly connected through screws; therefore, the rear end cover structure 1 and the rotary variable end cover structure 2 are connected through a plurality of screws, the overall structural compactness of the rear end structure of the motor is guaranteed, and the rotary variable structure 3 is dense in a rotary variable cavity.

Optionally, a sealing ring 4 is arranged between the rear end cover structure 1 and the rotary-change end cover structure 2, and the shape of the sealing ring 4 corresponds to the shapes of the rotating shaft mounting hole 11 and the end cover groove 12; after the rear end cover structure 1 and the rotary variable end cover structure 2 are connected through a plurality of screws, the sealing ring 4 is pressed between the rear end cover structure 1 and the rotary variable end cover structure 2 through pressing force of the screws; meanwhile, the shape of the sealing ring 4 corresponds to the shapes of the rotating shaft mounting hole 11 and the end cover groove 12, and the sealing ring 4 can be ensured to be sealed in the rotating shaft mounting hole 11 and the end cover groove 12.

Optionally, the rear end structure of the motor includes an oil seal 5 disposed in the rotary transformer cover hole 22, and the oil seal 5 is hermetically blocked outside the end face of the rotary transformer stator 30; it should be noted that, the outer circumference of the oil seal 5 is in interference fit with the inner wall surface of the cover hole 22, and meanwhile, a limiting step is further arranged on the inner wall surface of the cover hole 22 of the cover body 20, the limiting step is arranged along the circumferential direction of the cover hole 22, and the limiting step abuts against one end of the oil seal 5, so as to limit the axial displacement of the oil seal 5; because the oil seal 5 is sealed and blocked outside the end face of the rotary transformer stator 30, the axial sealing of the rotary transformer stator 30 can be realized, and the requirements of oil resistance, water resistance and ash resistance of the rear end structure of the motor are met.

The embodiment of the utility model provides a motor rear end structure, through installing the rotary transformer stator 30 in the pivot mounting hole 11 that sets up on the rear end cap main part 10, the stator lead wire 31 on the rotary transformer stator 30 is installed in the end cover groove 12 on the rear end cover structure 1, and the rotary transformer structure 3 is installed in the rotary transformer cavity as a whole at this moment, and the rotary transformer cavity is formed by the rotary transformer end cover structure 2 closing cap pivot mounting hole 11 and end cover groove 12; it should be noted that the rotating shaft mounting hole 11 is used for mounting the motor shaft 6 in a penetrating manner, so that the whole structure of the rear end structure of the motor is simple, convenient and compact, and the mounting of the rotating structure 3 is realized on the premise of ensuring the power output of the motor shaft 6; and meanwhile, a stator axial limiting structure and a stator circumferential limiting structure are arranged on the rear end cover main body 10, the rotary transformer cover main body 20 and the rotary transformer structure 3, the stator axial limiting structure is used for limiting the rotary transformer structure 3 in the axial direction, and the stator circumferential limiting structure is used for limiting the rotary transformer structure 3 in the circumferential direction, so that the rotary transformer structure 3 is arranged in a rotary transformer cavity and cannot influence the working state of the motor due to random displacement.

The embodiment of the utility model provides a hybrid motor, which comprises a motor shaft 6 as shown in fig. 6 and 7, and a motor rear end structure sleeved outside the motor shaft 6; the rear end structure of the motor is connected with the gearbox, the rotary variable structure 3 is integrally sealed, the structure is compact, and the arrangement on an automobile is facilitated.

In the description of the present invention, it should be noted that the terms "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are intended to be inclusive and mean, for example, that there may be a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It is noted that, in the present application, relational terms such as "first" and "second", and the like, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

The above description is only exemplary of the invention, and is intended to enable those skilled in the art to understand and implement the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. An electric machine rear end structure, comprising:

the rear end cover structure (1) comprises a rear end cover main body (10), wherein a rotating shaft mounting hole (11) located in the center of the rear end cover main body (10) and an end cover groove (12) extending from the rotating shaft mounting hole (11) to the peripheral surface direction of the rear end cover main body (10) along the radial direction of the rear end cover main body (10) are formed in the rear end cover main body (10);

the rotary variable end cover structure (2) comprises a rotary variable cover main body (20) which is covered on the rotating shaft mounting hole (11) of the rear end cover main body (10) and a rotary variable cover support body (21) which is connected with the rotary variable cover main body (20) and covered on the end cover groove (12), the rotary variable cover structure (2) covers the rotating shaft mounting hole (11) and the end cover groove (12) to form a rotary variable cavity, a rotary variable cover hole (22) is formed in the rotary variable cover main body (20), and the rotary variable cover hole (22) is communicated with the rotary variable cavity; and the number of the first and second groups,

a rotary variable structure (3) arranged in the rotary variable cavity; the rotary transformer structure (3) comprises a rotary transformer stator (30) arranged in the rotating shaft mounting hole (11), and a stator lead (31) connected to the rotary transformer stator (30), wherein the stator lead (31) is arranged in an end cover groove (12).

2. The electric machine rear end structure according to claim 1, characterized in that a stator axial limiting structure and a stator circumferential limiting structure are arranged on the rear end cover main body (10), the rotary transformer cover main body (20) and the rotary transformer structure (3), the stator axial limiting structure is used for limiting the rotary transformer structure (3) from the axial direction, and the stator circumferential limiting structure is used for limiting the rotary transformer structure (3) from the circumferential direction.

3. The rear-end structure of an electric motor according to claim 2, wherein the stator axial limiting structure includes a first limiting step (100) protruding from an inner wall surface of the rotating shaft mounting hole (11) of the rear end cover main body (10), and a second limiting step (200) protruding from an inner wall surface of the rotating shaft mounting hole (22) of the rotating shaft cover main body (20), the first limiting step (100) is disposed along a circumferential direction of the rotating shaft mounting hole (11), the second limiting step (200) is disposed along a circumferential direction of the rotating shaft mounting hole (22), and the second limiting step (200) and the first limiting step (100) are respectively disposed opposite to two end surfaces of the rotating shaft stator (30).

4. The rear end structure of the motor according to claim 2, wherein the stator circumferential limiting structure includes at least one first limiting protrusion (101) provided on an inner wall surface of the rotating shaft mounting hole (11) of the rear end cover main body (10), at least one first limiting groove (300) is provided on an outer circumferential surface of the rotating stator (30), the first limiting protrusion (101) is provided to extend in an axial direction of the rotating shaft mounting hole (11), the first limiting groove (300) is provided to extend in an axial direction of the rotating stator (30), and the first limiting protrusions (101) are engaged with the first limiting grooves (300) in a one-to-one correspondence manner; alternatively, the first and second electrodes may be,

stator circumference limit structure is including locating rear end cap main part (10) at least one second spacing recess on the internal face of pivot mounting hole (11), be equipped with at least one second spacing arch on the outer peripheral face of changeing stator (30) soon, the second spacing recess is followed the axial extension setting of pivot mounting hole (11), spacing recess is followed the axial extension setting of changeing stator (30) soon, just the spacing protruding card of second is located in the second spacing recess one-to-one.

5. The rear end structure of the motor according to claim 2, wherein the stator circumferential limiting structure includes a limiting protrusion disposed on an inner wall surface of the rotating shaft mounting hole (11) of the rear end cover main body (10), a limiting groove is disposed on an outer circumferential surface of the rotating stator (30), the limiting protrusion is disposed along an axial extension of the rotating shaft mounting hole (11), the limiting groove is disposed along an axial extension of the rotating stator (30), and the limiting protrusion is correspondingly clamped in the limiting groove.

6. The motor rear end structure according to claim 2, characterized in that the stator circumferential direction restricting structure includes a circumferential direction restricting ring (201) protruding from the resolver cover main body (20), and the resolver stator (30) is embedded in the circumferential direction restricting ring (201).

7. The motor rear end structure according to any one of claims 1 to 6, characterized in that a plurality of screw connection seats (13) are provided on the rear end cover structure (1) along the periphery of the rotation shaft mounting hole (11) and the end cover groove (12), a screw connection plate (23) is protrusively provided on the peripheries of the spin cover main body (20) and the spin cover support body (21), and the screw connection plate (23) is fixed to the screw connection seats (13) by screw connection.

8. The electric machine rear end structure according to any of claims 1 to 6, characterized in that a sealing ring (4) is arranged between the rear end cover structure (1) and the rotary transformer end cover structure (2), and the shape of the sealing ring (4) corresponds to the shape of the rotating shaft mounting hole (11) and the end cover groove (12).

9. The motor rear end structure according to any one of claims 1 to 6, characterized by comprising an oil seal (5) provided in the resolver cover hole (22), wherein the oil seal (5) is sealingly retained outside an end face of the resolver stator (30).

10. A hybrid motor, characterized by comprising a motor shaft (6), and the motor rear end structure of any one of claims 1 to 9 fitted on the outer side of the motor shaft (6).

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