CN220857743U - Shell assembly and motor - Google Patents

Abstract

The utility model discloses a shell assembly and a motor, wherein the shell assembly comprises a first structural member, a second structural member and a radial connecting member, wherein the first structural member and the second structural member are at least two adjacent structural members in a front end cover, a shell, a rear end cover and a rear cover respectively; the first structural member is provided with a mounting groove, a first radial hole penetrating through the outer side wall of the first structural member is formed in the groove side wall of the mounting groove, the second structural member is mounted in the mounting groove, a second radial hole is formed in the outer side wall of the second structural member, and the radial connecting piece penetrates through the first radial hole and is inserted into the second radial hole. The technical scheme of the utility model can shorten the axial length of the whole motor.

Description

Shell assembly and motor

Technical Field

The utility model relates to the technical field of motor equipment, in particular to a shell assembly and a motor.

Background

The shell component of the motor generally comprises a front end cover, a shell, a rear end cover, a rear cover and other structural members, wherein the front end cover is connected with the shell, the rear cover is connected with the rear end cover by axial screws, and axial connecting holes are formed in the front end cover, the rear end cover, the shell and the rear cover to realize axial connection between the two structural members, so that the axial length of the motor whole machine is overlong.

Disclosure of utility model

The utility model mainly aims to provide a shell assembly and a motor, and aims to shorten the axial length of the whole motor.

In order to achieve the above objective, the present utility model provides a housing assembly, which includes a first structural member, a second structural member, and a radial connecting member, where the first structural member and the second structural member are at least two adjacent structural members in a front end cover, a casing, a rear end cover, and a rear cover, respectively;

The first structural member is provided with a mounting groove, a first radial hole penetrating through the outer side wall of the first structural member is formed in the groove side wall of the mounting groove, the second structural member is mounted in the mounting groove, a second radial hole is formed in the outer side wall of the second structural member, and the radial connecting piece penetrates through the first radial hole and is inserted into the second radial hole.

In an embodiment of the utility model, a groove side wall of the mounting groove is further provided with a matching groove, and an outer side wall of the second structural member is further provided with a protrusion, and the protrusion is inserted into the matching groove.

In an embodiment of the present utility model, the first radial hole is formed at a bottom surface of the groove, and the second radial hole is formed at a convex surface of the protrusion.

In an embodiment of the present utility model, a side wall of the mating groove penetrates to an end face where the notch of the mounting groove is located.

In an embodiment of the utility model, a clamping groove is formed on a groove side wall of the matching groove, the matching groove and the clamping groove are distributed along the circumferential direction of the first structural member, and the protrusion is at least partially clamped in the clamping groove.

In an embodiment of the present utility model, a bottom surface of the mating groove is a concave arc surface, and the convex surface of the protrusion is a convex arc surface, and the concave arc surface is attached to the convex arc surface.

In an embodiment of the present utility model, the groove bottom surface of the mating groove and the convex surface of the protrusion are both flat surfaces.

In an embodiment of the present utility model, a groove is formed in an outer side wall of the first structural member, the first radial hole penetrates to a bottom surface of the groove, the bottom surface of the groove is a plane, the radial connecting piece includes a rod portion and a head portion connected to each other, the rod portion penetrates through the first radial hole and is inserted into the second radial hole, and the head portion abuts against the bottom surface of the groove.

In an embodiment of the utility model, a limiting groove is formed in the bottom surface of the groove, and the head is at least partially clamped in the limiting groove.

In an embodiment of the utility model, a limiting boss is arranged on the side wall of the mounting groove, and the second structural member is abutted with the table top of the limiting boss;

And/or, the first radial holes, the second radial holes and the radial connecting pieces are all provided with a plurality of radial holes, the first radial holes are arranged at intervals along the circumferential direction of the first structural member, the second radial holes are arranged at intervals along the circumferential direction of the second structural member, and each radial connecting piece is arranged in a penetrating manner in one of the first radial holes and is inserted in one of the second radial holes.

In an embodiment of the present utility model, the housing assembly further includes an encoder support, and the rear end cover and the encoder support are integrally formed; and/or, the shell assembly further comprises an encoder support, and the shell, the rear end cover, the encoder support and the rear cover are integrally formed.

The utility model also provides a shell assembly, which comprises a first structural member and a second structural member, wherein the first structural member and the second structural member are at least two adjacent structural members in the front end cover, the shell, the rear end cover and the rear cover respectively;

the first structural member is provided with a mounting groove, a first radial hole penetrating through the outer side wall of the first structural member is formed in the groove side wall of the mounting groove, the second structural member is mounted in the mounting groove, a second radial hole is formed in the outer side wall of the second structural member, and the first radial hole and the second radial hole are used for the radial connecting piece to penetrate through.

The utility model also proposes an electric machine comprising a housing assembly as described above.

In the shell assembly, when the shell assembly is assembled, the second structural member is installed in the installation groove of the first structural member, the radial connecting member penetrates through the first radial hole of the first structural member from the radial direction and is inserted into the second radial hole of the second structural member, so that the radial fixed connection between the first structural member and the second structural member can be realized, and the axial space of the second structural member occupies part of the axial space of the first structural member, so that the axial length of the whole motor can be effectively shortened.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of a housing assembly according to an embodiment of the present utility model;

FIG. 2 is a right side view of an embodiment of the housing assembly of the present utility model;

FIG. 3 is a schematic view of a first structural member of an embodiment of a housing assembly according to the present utility model;

FIG. 4 is a schematic view of a second structural member of an embodiment of a housing assembly according to the present utility model;

FIG. 5 is a right side view of a second structural member of an embodiment of the housing assembly of the present utility model;

FIG. 6 is a schematic view of another embodiment of a housing assembly according to the present utility model;

FIG. 7 is a right side view of another embodiment of the housing assembly of the present utility model;

FIG. 8 is a cross-sectional view of a first structural member of another embodiment of the housing assembly of the present utility model;

FIG. 9 is a schematic view of a second structural member of another embodiment of the housing assembly of the present utility model;

FIG. 10 is a right side view of a second structural member of another embodiment of the housing assembly of the present utility model;

FIG. 11 is a cross-sectional view of an embodiment of the motor of the present utility model;

FIG. 12 is a cross-sectional view of another embodiment of the motor of the present utility model;

FIG. 13 is a schematic view showing a structure in which an integrated rear cover is directed to the rear in another embodiment of the motor of the present utility model;

Fig. 14 is a schematic view showing a structure of an integrated rear cover facing forward in another embodiment of the motor according to the present utility model;

FIG. 15 is a cross-sectional view of yet another embodiment of the motor of the present utility model;

FIG. 16 is a schematic view of a motor according to another embodiment of the present utility model, wherein the integrated housing is directed to the rear;

fig. 17 is a schematic view illustrating a structure of an integrated casing forward in a motor according to another embodiment of the present utility model.

Reference numerals illustrate:

Reference numerals	Name of the name	Reference numerals	Name of the name
				100	Motor with a motor housing	116	Limiting groove
10	Housing assembly	117	Spacing boss
				10a	Front end cover	12	Second structural member
10b	Casing of machine	121	Second radial hole
				10c	Rear end cap	122	Protrusions
10d	Rear cover	13	Radial connector
				10e	Encoder support	20	Rotor core
10A	Integrated rear cover	30	Stator core
				10B	Integrated casing	40	Rotating shaft
11	First structural member	50	Sealing ring
				111	Mounting groove	60	Sealing gasket
112	First radial hole	70	Code disc
				113	Matching groove	80	Bearing
114	Clamping groove	90	Oil seal
				115	Groove

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a housing assembly 10 and a motor 100, which aims to shorten the axial length of the whole motor 100.

The specific structure of the housing assembly 10 and the motor 100 of the present utility model will be described below:

Referring to fig. 1 to 10 in combination, in an embodiment of the housing assembly 10 of the present utility model, the housing assembly 10 includes a first structural member 11, a second structural member 12, and a radial connector 13, where the first structural member 11 and the second structural member 12 are at least two adjacent structural members of a front end cover 10a, a housing 10b, a rear end cover 10c, and a rear cover 10d, respectively; the first structural member 11 has a mounting groove 111, a first radial hole 112 penetrating to the outer side wall of the first structural member 11 is formed in the groove side wall of the mounting groove 111, the second structural member 12 is mounted in the mounting groove 111, a second radial hole 121 is formed in the outer side wall of the second structural member 12, and the radial connecting piece 13 is inserted into the second radial hole 121 and penetrates through the first radial hole 112.

It can be appreciated that in the housing assembly 10 according to the present utility model, during assembly, the second structural member 12 is installed in the installation groove 111 of the first structural member 11, and the radial connecting member 13 is inserted into the second radial hole 121 of the second structural member 12 from the radial direction through the first radial hole 112 of the first structural member 11, so that the radial fixed connection between the first structural member 11 and the second structural member 12 can be achieved, and therefore, the axial space of the second structural member 12 occupies a part of the axial space of the first structural member 11, so that the axial length of the whole machine of the motor 100 can be effectively shortened. Thus, the installation space of the whole motor 100 is reduced, and the motor has better market competitiveness.

In this embodiment, the first structural member 11 and the second structural member 12 may be at least two adjacent structural members of the front end cover 10a, the housing 10b, the rear end cover 10c and the rear cover 10d, respectively, so as to implement radial fixed connection between the two structural members through the radial connecting member 13, and it is understood that in other embodiments, three or four structural members of the front end cover 10a, the housing 10b, the rear end cover 10c and the rear cover 10d may also be connected through the radial connecting member 13.

In an embodiment, when one of the first structural member 11 and the second structural member 12 is the housing 10b and the other is the rear end cap 10c, the mounting groove 111 may be formed at the rear end of the housing 10b, and when the rear end cap 10c is mounted into the mounting groove 111 from the rear of the housing 10b, the radial connecting member 13 is inserted into the second radial hole 121 of the rear end cap 10c through the first radial hole 112 of the housing 10b, so as to achieve the radial fixed connection between the housing 10b and the rear end cap 10 c. Of course, the mounting groove 111 may be provided at the front end of the rear cover 10c, and when the housing 10b is mounted into the mounting groove 111 from the front of the rear cover 10c, the radial connector 13 is inserted into the second radial hole 121 of the housing 10b through the first radial hole 112 of the rear cover 10c, so that the radial fixed connection between the housing 10b and the rear cover 10c can be achieved.

In another embodiment, when one of the first structural member 11 and the second structural member 12 is the casing 10b and the other is the front end cover 10a, the mounting groove 111 may be formed at the front end of the casing 10b, and when the front end cover 10a is mounted in the mounting groove 111 from the front of the casing 10b, the radial connector 13 is inserted into the second radial hole 121 of the front end cover 10a through the first radial hole 112 of the casing 10b, so as to achieve the radial fixed connection between the casing 10b and the front end cover 10 a. Of course, the mounting groove 111 may be formed at the rear end of the front end cover 10a, and when assembling, the casing 10b is mounted into the mounting groove 111 from the rear of the front end cover 10a, and then the radial connector 13 is inserted into the second radial hole 121 of the casing 10b through the first radial hole 112 of the front end cover 10a, so that the radial fixed connection between the casing 10b and the front end cover 10a can be achieved.

In yet another embodiment, when one of the first structural member 11 and the second structural member 12 is the rear cover 10c and the other is the rear cover 10d, the mounting groove 111 may be formed at the rear end portion of the rear cover 10c, and the rear cover 10d may be mounted into the mounting groove 111 from the rear of the rear cover 10c during assembly, and then the radial connection member 13 may be inserted through the first radial hole 112 of the rear cover 10c and into the second radial hole 121 of the rear cover 10d, thereby achieving the radial fixed connection between the rear cover 10c and the rear cover 10 d. Of course, the mounting groove 111 may be formed at the front end of the rear cover 10d, and when the rear cover 10c is mounted into the mounting groove 111 from the front of the rear cover 10d, the radial connection member 13 is inserted into the second radial hole 121 of the rear cover 10c through the first radial hole 112 of the rear cover 10d, so that the radial fixed connection between the rear cover 10c and the rear cover 10d can be achieved.

When two of the front end cover 10a, the housing 10b, the rear end cover 10c, and the rear cover 10d are connected radially, the connection between the other two structural members may be not particularly limited, and may be, for example, connected in an axial or radial manner, or may be, of course, integrally formed structural members.

In some embodiments, referring to fig. 11 to 14 in combination, the rear cover 10c and the encoder support 10e may be formed as a one-piece rear cover 10A, so that the encoder circuit board may be directly mounted on the mounting surface of the one-piece rear cover 10A, saving connectors (e.g., screws) for fixing the rear cover 10c and the encoder support 10e, and reducing material costs.

In the present embodiment, the first structural member 11 and the second structural member 12 may be at least two adjacent structural members of the front end cover 10A, the chassis 10b, the rear end cover (integrated rear cover 10A), and the rear cover 10 d.

Further, referring to fig. 15 to 17 in combination, the chassis 10B, the rear end cover 10c, the encoder support 10e and the rear cover 10d are integrally formed, that is, the chassis 10B, the integrated rear cover 10A and the rear cover 10d may be formed as an integrated chassis 10B, which may be directly formed into a machining-free form at the mating surface between the chassis 10B and the integrated rear cover 10A and the mating surface between the integrated rear cover 10A and the rear cover 10d, so that connectors for fixing the chassis 10B and the integrated rear cover a and the integrated rear cover 10A and the rear cover 10d are saved, thereby saving at least two parts and effectively reducing material costs.

In the present embodiment, one of the first structural member 11 and the second structural member 12 is a front end cover 10a, and the other is an integrated chassis 10B. In practical applications, the radial connectors 13 may be connectors such as screws, pins, etc., which are not specifically limited herein.

Further, referring to fig. 1 to 10 in combination, in an embodiment of the present utility model, the groove side wall of the mounting groove 111 is further provided with a mating groove 113, and the outer side wall of the second structural member 12 is further provided with a protrusion 122, and the protrusion 122 is inserted into the mating groove 113.

So configured, during assembly, the first structural member 11 and the second structural member 12 may be positioned under the cooperation of the protrusion 122 and the cooperation groove 113, so that the first radial hole 112 and the second radial hole 121 are better aligned, so that the radial connector 13 is conveniently inserted into the second radial hole 121 after passing through the first radial hole 112; and, the first structural member 11 and the second structural member 12 can be limited in the circumferential direction under the cooperation of the cooperation groove 113 and the protrusion 122, so as to reduce the shearing force on the radial connecting member 13, improve the reliability of the installation of the radial connecting member 13, and prevent the relative rotation between the first structural member 11 and the second structural member 12 during the use process, thereby affecting the connection stability between the first structural member 11 and the second structural member 12.

In the practical application process, the first radial holes 112 may be formed on the bottom surface of the matching groove 113, or the first radial holes 112 may be spaced from the matching groove 113; similarly, the second radial hole 121 may be formed on the protrusion 122 surface of the protrusion 122, or the second radial hole 121 may be spaced from the protrusion 122.

Further, referring to fig. 1 to 10, in an embodiment of the present utility model, the first radial hole 112 is formed on the bottom surface of the mating groove 113, and the second radial hole 121 is formed on the protrusion 122 surface of the protrusion 122, so that, during preparation, the positioning position of the first radial hole 112 can be better located through the mating groove 113, and the positioning position of the second radial hole 121 can be better located through the protrusion 122, and, during assembly, after the protrusion 122 is inserted into the mating groove 113, the first radial hole 112 and the second radial hole 121 can be better aligned, so that the radial connector 13 can be more conveniently inserted into the second radial hole 121 after passing through the first radial hole 112.

Further, referring to fig. 3 and 8 in combination, in an embodiment of the present utility model, a sidewall of the fitting groove 113 penetrates to an end surface where the notch of the mounting groove 111 is located, so that the protrusion 122 on the second structural member 12 can be easily inserted into the fitting groove 113 of the first structural member 11 during assembly.

Of course, in other embodiments, the mating groove 113 may not penetrate the end face where the notch of the mounting groove 111 is located, and at this time, the protrusion 122 on the second structural member 12 may be similar to a snap-fit structure, and during the process of mounting the second structural member 12 to the mounting groove 111, the protrusion 122 is deformed to be smoothly inserted into the mating groove 113.

Further, referring to fig. 8 in combination, in an embodiment of the present utility model, when the axial load force in the load of the motor 100 is large, the slot sidewall of the mating slot 113 may be provided with a clamping slot 114, the mating slot 113 and the clamping slot 114 are distributed along the circumferential direction of the first structural member 11, and the protrusion 122 is at least partially clamped in the clamping slot 114.

So set up, during the assembly, can install the second structure 12 to the mounting groove 111 of first structure 11 from the notch department of mounting groove 111, in this process, the protruding 122 on the second structure 12 inserts in the cooperation groove 113 of first structure 11 earlier, then rotatory second structure 12, so that protruding 122 on the second structure 12 moves towards draw-in groove 114, so that protruding 122 at least partly block into draw-in groove 114, can increase the spacing to the second structure 12 in the axial under protruding 122 and draw-in groove 114's cooperation, can provide the axial force of second structure 12 resistance load end.

Further, in order to facilitate the protrusion 122 to be snapped into the card slot 114 during assembly, referring to fig. 3 and fig. 6 to 8, in an embodiment of the present utility model, the bottom surface of the mating slot 113 may be designed as a concave arc surface, and the protrusion 122 surface of the protrusion 122 may be designed as a convex arc surface, so that the concave arc surface and the convex arc surface are disposed in a fitting manner, and thus the protrusion 122 may be more smoothly snapped into the card slot 114 under the cooperation of the concave arc surface of the mating slot 113 and the convex arc surface of the protrusion 122.

Further, referring to fig. 4 and 5 in combination, in another embodiment of the present utility model, when the axial load force in the load of the motor 100 is smaller, the bottom surface of the mating groove 113 and the convex 122 surface of the protrusion 122 may be designed to be planar, so that the first structural member 11 and the second structural member 12 may be further limited in the circumferential direction under the cooperation of the two planar surfaces, so as to reduce the shearing force on the radial connecting member 13, to improve the reliability of the installation of the radial connecting member 13, and prevent the relative rotation between the first structural member 11 and the second structural member 12 during the use, thereby affecting the connection stability between the first structural member 11 and the second structural member 12.

Of course, in other embodiments, the groove bottom surface of the mating groove 113 and the convex 122 surface of the convex 122 may also be designed as concave-convex surfaces, wavy surfaces, saw tooth surfaces, etc. that mate with each other.

Further, referring to fig. 1 to 3, 6 and 7, in an embodiment of the present utility model, a groove 115 is formed on an outer side wall of the first structural member 11, the first radial hole 112 penetrates to a bottom surface of the groove 115, the bottom surface of the groove 115 is a plane, the radial connecting member 13 includes a rod portion and a head portion connected to each other, the rod portion penetrates through the first radial hole 112 and is inserted into the second radial hole 121, and the head portion abuts against the bottom surface of the groove 115.

So set up, during the assembly, can pass recess 115 earlier with the pole portion of radial connecting piece 13, pass first radial hole 112 again, insert in the radial hole 121 of second afterwards, after the assembly is accomplished, the head of radial connecting piece 13 can the butt on the groove bottom surface of recess 115, because the groove bottom surface of recess 115 is the plane, can increase the area of contact between groove bottom surface and the head, and then can increase the installation reliability of radial connecting piece 13.

Further, referring to fig. 3 in combination, in an embodiment of the present utility model, a groove bottom surface of the groove 115 is provided with a limiting groove 116, and the head is at least partially clamped in the limiting groove 116.

So set up, during the assembly, with the pole portion of radial connecting piece 13 pass recess 115 and first radial hole 112 in proper order to after inserting second radial hole 121, can make the head of radial connecting piece 13 at least partly block into spacing inslot 116, can carry out spacing to radial connecting piece 13 through spacing groove 116, in order to further promote radial connecting piece 13's installation reliability.

In some embodiments, when the radial connector 13 is installed by screwing in, the cross-sectional shape of the radial connector 13 may be made circular, and the cross-sectional shape of the limit groove 116 may be made circular, so that the limit groove 116 may be prevented from interfering with the installation of the radial connector 13.

Further, referring to fig. 3 and 8 in combination, in an embodiment of the present utility model, a limiting boss 117 is disposed on a side wall of the mounting groove 111, and the second structural member 12 abuts against a table surface of the limiting boss 117.

So set up, during the assembly, install the in-process of mounting groove 111 with second structure 12 from the notch of mounting groove 111 to mounting groove 111, when second structure 12 butt when the mesa of spacing boss 117, can indicate that second structure 12 installs in place, can carry out spacingly through spacing boss 117 to second structure 12 like this to guarantee the installation accuracy between first structure 11 and the second structure 12.

In some embodiments, the limiting boss 117 may be extended along the circumferential direction of the first structural member 11, so as to increase the contact area between the second structural member 12 and the limiting boss 117, i.e. the limiting strength of the limiting boss 122117 on the second structural member 12 may be improved.

Further, referring to fig. 1 to 10 in combination, in an embodiment of the utility model, a plurality of first radial holes 112, second radial holes 121 and radial connectors 13 are provided, the plurality of first radial holes 112 are disposed at intervals along the circumferential direction of the first structural member 11, the plurality of second radial holes 121 are disposed at intervals along the circumferential direction of the second structural member 12, and each radial connector 13 is inserted through one of the first radial holes 112 and is inserted into one of the second radial holes 121.

So set up, during the assembly, through using under the cooperation of a plurality of radial connecting pieces 13 and a plurality of first radial hole 112 and a plurality of second radial hole 121, effectively promote the radial fixed joint strength between first structure 11 and the second structure 12 to guarantee the connection reliability between first structure 11 and the second structure 12.

Referring to fig. 1 to 10 in combination, the present utility model further proposes a housing assembly 10, the housing assembly 10 including a first structural member 11 and a second structural member 12, the first structural member 11 and the second structural member 12 being at least two adjacent structural members of a front end cover 10a, a housing 10b, a rear end cover 10c, an encoder support 10e and a rear cover 10d, respectively; the first structural member 11 has a mounting groove 111, a first radial hole 112 penetrating to the outer side wall of the first structural member 11 is formed in the groove side wall of the mounting groove 111, the second structural member 12 is mounted in the mounting groove 111, a second radial hole 121 is formed in the outer side wall of the second structural member 12, and the first radial hole 112 and the second radial hole 121 are used for penetrating the radial connecting member 13.

It can be appreciated that in the housing assembly 10 according to the present utility model, during assembly, the second structural member 12 is installed in the installation groove 111 of the first structural member 11, and the radial connecting member 13 is inserted into the second radial hole 121 of the second structural member 12 from the radial direction through the first radial hole 112 of the first structural member 11, so that the radial fixed connection between the first structural member 11 and the second structural member 12 can be achieved, and therefore, the axial space of the second structural member 12 occupies a part of the axial space of the first structural member 11, so that the axial length of the whole machine of the motor 100 can be effectively shortened. Thus, the installation space of the whole motor 100 is reduced, and the motor has better market competitiveness.

Referring to fig. 11 in combination, the present utility model further provides a motor 100, where the motor 100 includes the housing assembly 10 and the stator assembly and the rotor assembly disposed in the housing assembly 10, and the specific structure of the housing assembly 10 refers to the foregoing embodiment, and since the motor 100 adopts all the technical solutions of all the foregoing embodiments, at least all the beneficial effects brought by the technical solutions of the foregoing embodiments are not described herein again.

In the present embodiment, the housing assembly 10 includes a front cover 10a, a chassis 10b, a rear cover 10c, an encoder support 10e, and a rear cover 10d, wherein the front cover 10a and the rear cover 10c are respectively provided at a front end portion and a rear end portion of the chassis 10b, the rear cover 10d is provided at a rear end portion of the rear cover 10c, the front end portion of the encoder support 10e is connected to a rear end portion of the rear cover 10c, and the rear end portion of the encoder support 10e is connected to a front end portion of the rear cover 10 d. The rotor assembly comprises a rotor core 20 and a rotating shaft 40, the motor 100 further comprises a stator assembly and an encoder 70, wherein the stator core 30 in the stator assembly is installed in the casing 10b, the rotor core 20 is arranged in the stator core 30 in a penetrating mode, the rotating shaft 40 is arranged in the rotor core 20 in a penetrating mode so as to drive the rotating shaft 40 to rotate through the rotor core 20, and the encoder 70 is arranged between the rear end cover 10c and the rear cover 10d and is fixed on the encoder support 10 e.

In some embodiments, the motor 100 may further include a sealing structure, and sealing structures may be disposed between the front end cover 10a, the housing 10b, the rear end cover 10c, the encoder support 10e, and the rear cover 10d, so as to ensure tightness between the above two structural members. For example, a seal ring 50 may be provided between the casing 10b and the rear cover 10c, and a gasket 60 may be provided between the rear cover 10c and the rear cover 10 d.

In some embodiments, the motor 100 may further include a bearing 80, so that the bearing 80 is disposed between the rotating shaft 40 and the front end cover 10a, and between the rotating shaft 40 and the rear end cover 10c, and the arrangement of the bearing 80 can reduce the friction coefficient of the rotating shaft 40 during the movement process and ensure the rotation precision of the rotating shaft 40.

In some embodiments, the motor 100 may further include an oil seal 90 such that the oil seal 90 is disposed between the rotation shaft 40 and the front cover 10a such that the oil seal 90 is located at the outer side of the bearing 80, and the oil seal 90 is disposed to prevent the lubricant in the bearing 80 from leaking outward.

The foregoing description is only of the preferred embodiments of the present utility model and is not intended to limit the scope of the utility model, and all equivalent structural changes made by the description of the present utility model and the accompanying drawings or direct/indirect application in other related technical fields are included in the scope of the utility model.

Claims (12)

1. The shell assembly is characterized by comprising a first structural member, a second structural member and a radial connecting member, wherein the first structural member and the second structural member are at least two adjacent structural members in a front end cover, a shell, a rear end cover and a rear cover respectively;

The first structural member is provided with a mounting groove, a first radial hole penetrating through the outer side wall of the first structural member is formed in the groove side wall of the mounting groove, the second structural member is mounted in the mounting groove, a second radial hole is formed in the outer side wall of the second structural member, and the radial connecting piece penetrates through the first radial hole and is inserted into the second radial hole;

the groove side wall of the mounting groove is also provided with a matching groove, the outer side wall of the second structural member is also provided with a bulge, and the bulge is inserted into the matching groove.

2. The housing assembly of claim 1, wherein the first radial hole is open at a bottom surface of the mating groove and the second radial hole is open at a convex surface of the protrusion.

3. The housing assembly of claim 1, wherein a sidewall of the mating slot extends through to an end face where the mounting slot is located.

4. A housing assembly according to claim 3, wherein the engagement groove is formed in a groove side wall of the engagement groove, the engagement groove and the engagement groove being circumferentially distributed along the first structural member, and the projection being at least partially retained in the engagement groove.

5. The housing assembly of claim 4, wherein the bottom surface of the mating groove is a concave arc surface, the convex surface is a convex arc surface, and the concave arc surface is in fit with the convex arc surface.

6. A housing assembly according to claim 3, wherein the groove bottom surface of the mating groove and the convex surface of the protrusion are both planar.

7. The housing assembly of claim 1, wherein the outer sidewall of the first structural member is provided with a groove, the first radial hole penetrates to the bottom surface of the groove, the bottom surface of the groove is a plane, the radial connecting member comprises a rod part and a head part which are connected, the rod part penetrates through the first radial hole and is inserted into the second radial hole, and the head part is abutted to the bottom surface of the groove.

8. The housing assembly of claim 7, wherein the bottom surface of the groove is provided with a limit groove, and the head is at least partially clamped in the limit groove.

9. The housing assembly of any one of claims 1 to 8, wherein a slot sidewall of the mounting slot is provided with a limit boss, the second structural member abutting a mesa of the limit boss;

And/or, the first radial holes, the second radial holes and the radial connecting pieces are all provided with a plurality of radial holes, the first radial holes are arranged at intervals along the circumferential direction of the first structural member, the second radial holes are arranged at intervals along the circumferential direction of the second structural member, and each radial connecting piece is arranged in a penetrating manner in one of the first radial holes and is inserted in one of the second radial holes.

10. The housing assembly of any one of claims 1 to 8, further comprising an encoder support, the rear end cap being of unitary construction with the encoder support; and/or, the shell assembly further comprises an encoder support, and the shell, the rear end cover, the encoder support and the rear cover are integrally formed.

11. The shell assembly is characterized by comprising a first structural member and a second structural member, wherein the first structural member and the second structural member are at least two adjacent structural members in a front end cover, a shell, a rear end cover and a rear cover respectively;

The first structural member is provided with a mounting groove, a first radial hole penetrating through the outer side wall of the first structural member is formed in the groove side wall of the mounting groove, the second structural member is mounted in the mounting groove, a second radial hole is formed in the outer side wall of the second structural member, and the first radial hole and the second radial hole are used for the radial connecting piece to penetrate through;

the groove side wall of the mounting groove is also provided with a matching groove, the outer side wall of the second structural member is also provided with a bulge, and the bulge is inserted into the matching groove.

12. An electric machine comprising a housing assembly according to any one of claims 1 to 11 and a stator assembly and a rotor assembly disposed within the housing assembly.