CN111525722A

CN111525722A - Motor base and motor

Info

Publication number: CN111525722A
Application number: CN202010261032.2A
Authority: CN
Inventors: 相阿峰; 许勇; 姜琛; 郭岚岚
Original assignee: CRRC Yongji Electric Co Ltd
Current assignee: CRRC Yongji Electric Co Ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2020-08-11

Abstract

The invention provides a motor base and a motor. The invention provides a motor base which comprises a front pressing ring, a rear pressing ring and a plurality of connecting pieces, wherein the front pressing ring is provided with a plurality of first vent holes; the front pressing ring and the rear pressing ring are arranged on the same central axis, and the rear pressing ring and the front pressing ring have an interval in the axial direction of the central axis; the connecting pieces are welded between the front pressing ring and the rear pressing ring, and the connecting pieces surround the outer side of the central axis, so that the motor base is of a symmetrical structure, and the front pressing ring, the connecting pieces and the rear pressing ring jointly enclose a space capable of accommodating a motor stator. The motor base provided by the invention has the advantages of high rigidity, good heat dissipation effect and low aerodynamic noise caused by the flow of cooling air.

Description

Motor base and motor

Technical Field

The invention relates to the technical field of electromechanical equipment, in particular to a motor base and a motor.

Background

The motor is an electromagnetic device for realizing electric energy conversion or transmission according to an electromagnetic induction law. The motor comprises stator, rotor and other annex, and wherein, the stator includes frame, stator core and stator winding, and the frame is used for fixed stator core and front and back end cover in order to support the rotor, can not only play the guard action, still is a part of motor cooling wind path structure. For large and medium-sized motors, the rated power is high, the temperature inside the motor can be increased due to heat caused by loss in the motor, and in order to ensure that the motor can run for a long time in a working state with design requirements, the reasonable cooling structure not only can timely take away the heat caused by loss, but also can meet the requirements of current technological progress and environmental protection on motor noise, so that the structure of the base directly influences the use performance of the motor.

In the existing stator base structure of large and medium-sized motors, the structural design of a cooling air path mostly adopts a plurality of circular ventilation holes.

Therefore, the existing motor stator base not only causes great aerodynamic noise in the flowing process of cooling air in the heat dissipation process, but also causes great cooling air resistance due to the structural limitation, thereby causing poor heat dissipation effect of the base.

Disclosure of Invention

The invention provides a motor base and a motor, which can effectively dissipate heat generated by the motor, reduce noise generated by cooling air in the flowing process and optimize the use performance of the motor.

In one aspect, an embodiment of the present invention provides a motor base, including:

the front pressing ring is provided with a plurality of first vent holes;

the front pressing ring and the rear pressing ring are arranged on the same central axis, and have a distance in the axial direction of the central axis;

the connecting pieces are welded between the front pressing ring and the rear pressing ring and surround the outer side of the central axis, so that the motor base is of a symmetrical structure, and the front pressing ring, the connecting pieces and the rear pressing ring jointly surround a space capable of accommodating a motor stator.

Optionally, the front clamping ring has a first retaining ring portion extending towards the central axis, the rear clamping ring has a second retaining ring portion extending towards the central axis, the first retaining ring portion and the second retaining ring portion are arranged oppositely, the plurality of first ventilation holes are formed in the first retaining ring portion, and the plurality of second ventilation holes are formed in the second retaining ring portion.

Optionally, a plurality of first ventilation holes and a plurality of second ventilation hole all set up along the circumference interval of axis.

Optionally, the first vent hole and the second vent hole are long hanging holes or waist-shaped holes.

Optionally, a stator accommodating cavity for accommodating the motor stator is enclosed among the first retaining ring portion, the plurality of connecting pieces and the second retaining ring portion.

Optionally, the connecting piece is a connecting plate, two opposite ends of the connecting plate are respectively welded with the front pressing ring and the rear pressing ring, and the surface direction of the connecting plate faces the central axis.

Optionally, the motor base provided in the embodiment of the present invention further includes an upper hanging assembly, where the upper hanging assembly includes:

the base plate is used for hanging;

the first end of the first rib plate is connected to the base plate, and the second end of the first rib plate is connected to the front pressing ring;

the first end of the second rib plate is connected to the base plate, and the second end of the second rib plate is connected to a connecting piece close to the upper hanging component;

and the first end of the third rib plate is connected to the base plate, and the second end of the third rib plate is connected to the rear pressing ring.

Optionally, the motor base provided in the embodiment of the present invention further includes a support frame, and the support frame includes:

the pair of side plates are axially arranged along the central axis at intervals, wherein one side plate is fixedly connected with the front pressing ring, and the other side plate is fixedly connected with the rear pressing ring;

and the upper connecting plate is positioned at the upper ends of the pair of side plates, and the pair of side plates are connected through the upper connecting plate.

Optionally, the inner wall of the front pressing ring is provided with a plurality of reinforcing ribs distributed at intervals along the circumferential direction of the front pressing ring, and the inner wall of the rear pressing ring is provided with a plurality of reinforcing ribs distributed at intervals along the circumferential direction of the rear pressing ring.

On the other hand, the embodiment of the invention also provides a motor, which comprises a rotor, a rotating shaft, a stator coil, a bearing, a front end cover, a rear end cover and the motor base, wherein the rotor is sleeved on the rotating shaft, the stator coil is embedded on a stator core of the motor, the front end cover is installed at the front end of the front pressing ring, the rear end cover is installed at the rear end of the rear pressing ring, and the bearing is installed between the rotating shaft and the front end cover or the rear end cover.

The motor base comprises a front pressing ring, a rear pressing ring, a plurality of connecting pieces, an upper hanging assembly and a support frame, wherein the front pressing ring and the rear pressing ring are arranged on the same central axis, the rear pressing ring and the front pressing ring are spaced in the axial direction of the central axis, the connecting pieces are welded between the front pressing ring and the rear pressing ring and surround the outer side of the central axis, the motor base is of a symmetrical structure, the front pressing ring, the connecting pieces and the rear pressing ring jointly enclose a space capable of containing a motor stator, the upper hanging assembly comprises a base plate, a first rib plate, a second rib plate and a third rib plate, the support frame comprises a pair of side plates and an upper connecting plate, the front pressing ring is provided with a first rib portion extending towards the central axis, the rear pressing ring is provided with a second rib portion extending towards the central axis, the first rib portion and the second rib portion are arranged oppositely, and the first rib portion, A stator accommodating cavity for accommodating a motor stator is formed by the connecting pieces and the second retaining ring part together in a surrounding manner, and an air inlet is formed in the side wall of the rear pressing ring; a plurality of first ventilation holes are formed in the first blocking ring portion, a plurality of second ventilation holes are formed in the second blocking ring portion, the second ventilation holes and the first ventilation holes are oppositely arranged and communicated with each other, the first ventilation holes are formed in the first blocking ring portion, and the second ventilation holes are formed in the second blocking ring portion, so that the contact area between cooling air flow and a motor base is increased, the heat dissipation performance of the motor base is improved, noise generated in the flowing process of cooling air is reduced, the problems that the heat dissipation effect of the existing motor base is poor, and noise generated by flowing of cooling air in the motor base is large are solved.

The construction of the present invention and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

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

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

fig. 2 is a usage state diagram of the motor base according to the embodiment of the present invention;

fig. 3 is a radial cross-sectional view of a motor housing provided in accordance with an embodiment of the present invention;

fig. 4 is a flow chart of air flow in the motor base according to the embodiment of the present invention.

Description of reference numerals:

1-front pressing ring; 11-a first land portion; 111-a first vent; 2-pressing a ring after the step; 21-a second stop ring part; 211-second vent hole; 22-a wind deflector; 221-an air inlet; 3-connecting the plates; 5-reinforcing ribs; 6-hanging the assembly; 61-a substrate; 62-a first rib plate; 63-second rib plate; 64-third rib plate; 7-a support frame; 71-side plate; 72-an upper connecting plate; 73-hanging holes; 8-stator coils; 9-front end cover; 10-rear end cap; 20-a rotor; 30-a rotating shaft; 40-bearing.

Detailed Description

First, it should be understood by those skilled in the art that these embodiments are merely for explaining the technical principles of the present invention, and are not intended to limit the scope of the present invention. And can be adjusted as needed by those skilled in the art to suit particular applications.

Next, it should be noted that in the description of the present invention, the terms of direction or positional relationship indicated by the terms "inside", "outside", and the like are based on the direction or positional relationship shown in the drawings, which are merely for convenience of description, and do not indicate or imply that a device or a member must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.

Furthermore, it should be noted that, in the description of the present invention, unless otherwise explicitly specified or limited, the terms "connected" and "connected" should be interpreted broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, and the two components can be communicated with each other. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

The motor is used as a part commonly used in the field of electromechanical equipment, the excellent use performance of the motor is closely related to the use performance of most of equipment, the motor is composed of a stator, a rotor and other accessories, wherein the stator comprises a stator core, a stator winding and a base, and the base is used for fixing the stator core and front and rear end covers to support the rotor and is also a structural part of a cooling air path, so that the base not only can play a supporting role, but also can play a heat dissipation role, and therefore, the use performance of the motor is closely related to the structural design of the base.

Therefore, the embodiment of the invention provides a motor base and a motor, which can effectively dissipate heat generated by the motor and can reduce noise generated by cooling air flowing in the motor base.

Fig. 1 is a schematic perspective view of a motor base according to an embodiment of the present invention. Fig. 2 is a usage state diagram of the motor base according to the embodiment of the present invention. Fig. 3 is a radial cross-sectional view of a motor base according to an embodiment of the present invention. Fig. 4 is a flow chart of air flow in the motor base according to the embodiment of the present invention. As shown in fig. 1 and fig. 2, this embodiment provides a motor base, including preceding clamping ring 1, back clamping ring 2 and a plurality of connecting piece, preceding clamping ring 1 sets up on same axis with back clamping ring 2, and back clamping ring 2 and preceding clamping ring 1 have the interval in the axial of axis, the connecting piece welds between preceding clamping ring 1 and back clamping ring 2, and a plurality of connecting pieces encircle the axis outside, preceding clamping ring 1, a plurality of connecting pieces and back clamping ring 2 enclose into the space that can hold motor stator jointly, and preceding clamping ring 1, a plurality of connecting pieces and back clamping ring 2 form a cage type frame.

In this embodiment, the cage-shaped frame formed by the front clamping ring 1, the plurality of connecting members and the rear clamping ring 2 is of a symmetrical structure, so that the rigidity center and the mass center of the motor base are basically overlapped, and the motor base can be prevented from being damaged by torsion under the action of external force in the use process.

In this embodiment, the top of the rear pressing ring 2 has an air deflector 22, the air deflector 22 is provided with a pair of air inlets 221, and air outside the motor base can enter the motor base through the pair of air inlets 221 to dissipate heat in the motor base.

In this embodiment, the connecting piece is four connecting plates 3, and the relative both ends of connecting plate 3 weld with preceding clamping ring 1 and back clamping ring 2 respectively, and the face direction of connecting plate is towards the axis, and is concrete, and the extending direction of connecting plate is along the circumference of axis.

In the embodiment of this embodiment, the welding forming mode between connecting plate 3 and preceding clamping ring 1, back clamping ring 2 adopts the symmetry welding, can reduce the deflection that the motor frame that this embodiment provided formed in welding process, consequently, need not carry out the thermal treatment destressing to finished motor frame to, thereby, can practice thrift the manufacturing cost and the production cycle of motor frame, be convenient for carry out mass production to the motor frame, with the demand to the motor in the satisfying market.

In the specific implementation manner of this embodiment, the welding area formed between the connection plate 3 and the front and rear

pressing rings

1 and 2 is not in direct contact with the stator punching sheet of the motor, so as to prevent the stator punching sheet from being burned, and avoid the rapid increase of the stator core loss due to inter-sheet insulation damage.

In an optional implementation manner of this embodiment, in order to obtain better welding quality, a phenomenon that welding is not tight between the connecting plate 3 and the front pressing ring 1 and the rear pressing ring 2 is avoided, a weld formed between the connecting plate 3 and the front pressing ring 1 and the rear pressing ring 2 is a V-shaped weld with a truncated edge, that is, a Y-shaped weld, so that it is ensured that the connecting plate 3 and the front pressing ring 1 and the rear pressing ring 2 are welded firmly, and the connection is stable, so that the motor provided by this embodiment has a stable structure, and can effectively support the motor stator, ensure that the position of the motor base is stable, and the motor is convenient to use in some mechanical devices.

In this embodiment, the front pressing ring 1 has a first collar portion 11 extending to a central axis, the rear pressing ring 2 has a second collar portion 21 extending to the central axis, the first collar portion 11 and the second collar portion 21 are oppositely arranged, a stator accommodating cavity for accommodating the motor stator is defined by the first collar portion 11, the plurality of connecting plates 3 and the second collar portion 21, and the first collar portion 11 and the second collar portion 21 can play a role in limiting so as to limit the position of the motor stator.

Specifically, one end of the front pressing ring 1, which is close to the connecting plate 3, is provided with a first stop ring part 11, and one end of the rear pressing ring 2, which is close to the connecting plate 3, is provided with a second stop ring part 21, so that the position of a motor stator core is accurately limited, and the motor stator is prevented from deviating to influence the use of the motor in the operation process of the motor.

As shown in fig. 2, in this embodiment, a plurality of first ventilation holes 111 are opened on the first collar portion 11, a plurality of second ventilation holes 211 are opened on the second collar portion 21, the plurality of second ventilation holes 211 and the plurality of first ventilation holes 111 are oppositely arranged and mutually communicated, specifically, the air outside the motor base enters the rear clamping ring 2 through the pair of air inlets 221, and then enters the motor stator through the second ventilation holes 211 and the inner hole of the second collar portion 21, and then enters the front clamping ring 1 through the inner hole of the first collar portion 11 and the first ventilation holes 111, because the plurality of first ventilation holes 111 are opened on the first collar portion 11, and the plurality of second ventilation holes 211 are opened on the second collar portion 21, the heat of the motor base can be rapidly dissipated, so that the motor can continuously and normally work.

As shown in fig. 3, in an optional implementation manner of this embodiment, the plurality of first ventilation holes 111 and the plurality of second ventilation holes 211 are all arranged at intervals along the circumferential direction of the central axis, so that static pressure difference between the inlet and outlet of the cooling air is low, and wind resistance is small, thereby uniformly dissipating heat of the motor base and improving the usability of the motor.

In the concrete implementation of this embodiment, a plurality of first ventilation holes 111 include 4 first ventilation holes 111 of group, a plurality of second ventilation holes 211 include 4 second ventilation holes 211 of group, every first ventilation hole 111 of group includes 2 first ventilation holes 111, every second ventilation hole 211 of group includes 2 second ventilation holes 211, and the axis of every first ventilation hole 111 of group or every second ventilation hole 211 of group is 45 with the contained angle of axis to can further guarantee to carry out effectively, evenly dispel the heat to the motor frame, promote the performance of motor.

In an alternative embodiment of this embodiment, the first vent hole 111 or the second vent hole 211 is a long hanging hole or a waist-shaped hole.

In this embodiment, the first vent hole 111 and the second vent hole 211 may be both waist-shaped holes.

In the optional implementation of this embodiment, have a plurality of strengthening ribs 5 along 1 circumference interval distribution of preceding clamping ring on the inner wall of preceding clamping ring 1, have a plurality of strengthening ribs 5 along 2 circumference interval distribution of back clamping ring on the inner wall of back clamping ring 2, consequently, strengthened preceding clamping ring 1, the structural strength of back clamping ring 2 self for the motor frame stable in structure after the shaping, rigidity is good, effectively reduces the mechanical vibration that motor stator produced.

In the embodiment of this embodiment, a plurality of strengthening ribs 5 encircle the axis outside, and evenly distributed has 8 strengthening ribs 5 on the inner wall of preceding clamping ring 1, back clamping ring 2, consequently, has further strengthened the structural strength of preceding clamping ring 1, back clamping ring 2 self for the motor frame structure after the shaping is more stable.

The motor base provided by the embodiment comprises a front clamping ring 1, a rear clamping ring 2 and a plurality of connecting plates 3 for connecting the front clamping ring 1 and the rear clamping ring 2, wherein a Y-shaped welding seam is formed between the connecting plates 3 and the front clamping ring 1 and the rear clamping ring 2 by adopting a welding forming mode of symmetrical welding between the connecting plates 3 and the front clamping ring 1 and the rear clamping ring 2 so as to reduce the deformation amount of the motor base generated in the welding process and ensure that the connecting plates 3 and the front clamping ring 1 and the rear clamping ring 2 are arranged between each other, wherein the rear end of the front clamping ring 1 is provided with a first stop ring part 11, the front end of the rear clamping ring 2 is provided with a second stop ring part 21, the first stop ring part 11 and the second stop ring part 21 play a limiting role in limiting the motor stator in a space for accommodating the motor stator, in addition, the first stop ring part 11 is provided with a plurality of first vent holes 111, the second stop ring 21 is provided with a plurality of second vent holes 211, therefore, when the cooling air flows into the front retainer 1 from the rear retainer 2, the cooling air passes through the plurality of second vent holes 211 and the plurality of first vent holes 111, and the static pressure difference between the inlet and the outlet is low, so that the wind resistance is small. Consequently, can effectively dispel the heat to the motor frame, promote the performance of motor, in addition, all be equipped with a plurality of strengthening ribs 5 on the inner wall of preceding clamping ring 1 and back clamping ring 2, consequently, strengthened the structural strength of preceding clamping ring 1, back clamping ring 2 self for the motor frame stable in structure after the shaping, rigidity is good, effectively reduces the mechanical vibration that motor stator produced.

As shown in fig. 1, as an optional structural form, the motor base provided by the present application further includes an upper hanger assembly 6, the upper hanger assembly includes a base plate 61, a first rib plate 62, a second rib plate 63 and a third rib plate 64, the base plate 61 is used for hanging, specifically, the base plate 61 can be connected to the fixing base, a first end of the first rib plate 62 is connected to the base plate 61, a second end of the first rib plate 62 is connected to the front clamping ring 1, a first end of the second rib plate 63 is connected to the base plate 61, a second end of the second rib plate 63 is connected to a connecting member close to the upper hanger assembly 6, a first end of the third rib plate 64 is connected to the base plate 61, and a second end of the third rib plate 64 is connected to the rear clamping ring.

Optionally, the second end of the first rib plate 62 is welded on the front pressing ring 1, the second end of the second rib plate 63 is welded on a connecting piece close to the upper hanging component 6, the second end of the third rib plate 64 is welded on the rear pressing ring 2, and the welding mode at the position adopts a full penetration welding mode, so that the upper hanging component 6 is reliably connected with the front pressing ring 1, the connecting piece and the rear pressing ring 2, the rigidity of the motor base is increased, the motor can be stably installed, and the reliability of the motor is improved.

In the specific implementation manner of this embodiment, threaded holes 65 are opened at both the upper end of first rib plate 62 and the upper end of third rib plate 64, so that the lower end of the lifting appliance can be matched with a pair of threaded holes 65, which is convenient for operations such as hoisting and transporting a motor.

The motor frame that this embodiment provided, including last hanging component 6, it includes base plate 61 and the first gusset 62 of setting in base plate 61 upper end to go up hanging component 6, second gusset 63 and third gusset 64, the second end welding of first gusset 62 is on preceding clamping ring 1, the second end welding of second gusset 63 is on being close to a connecting piece of hanging component 6 on, the second end welding of third gusset 64 is on back clamping ring 2, and welding mode all adopts the welding mode of full penetration, consequently, can increase the rigidity of motor frame, guarantee motor installation is stable, improve the reliability of motor, furthermore, threaded hole 65 has all been seted up to the upper end of first gusset 62 and the upper end of third gusset 64, consequently, make the hoist lower extreme can cooperate with a pair of threaded hole 65, be convenient for hoist to the motor, operations such as transportation.

In addition, as an optional implementation manner, the motor base provided in this embodiment further includes a support frame 7, the support frame 7 includes a pair of side plates 71 and an upper connecting plate 72, the pair of side plates 71 is axially disposed along the central axis at an interval, wherein one side plate 71 is fixedly connected to the front clamping ring 1, the other side plate 72 is fixedly connected to the rear clamping ring 2, the upper connecting plate 72 is located at one pair of sides, the upper end of the side plate 71, and the pair of side plates are connected to each other through the upper connecting plate 72, because the motor base provided in this embodiment includes the support frame 7, the rigidity of the motor base is increased, the motor installation stability is further ensured, and the reliability of the motor is higher.

In the specific implementation manner of this embodiment, the side plate 71 is provided with the hanging hole 73, so that operations such as hanging and transporting the motor are facilitated, and the use is facilitated.

The motor frame that this embodiment provided includes support frame 7, and support frame 7 includes a pair of curb plate 71 and upper junction plate 72, and upper junction plate 72 is located a pair of side, 71's upper end, and links to each other through upper junction plate 72 between a pair of curb plate, and the processing has hanging hole 73 on the curb plate 71, and consequently, support frame 7's setting has not only strengthened the rigidity of motor frame, has ensured the installation stability and the reliability of motor, still is convenient for hoist the motor, operation such as transportation.

As shown in fig. 1 and 2, the present embodiment further provides an electric motor, which includes a rotor 20, a rotating shaft 30, a stator coil 8, a bearing 40, a front cover 9, a rear cover 10, and the aforementioned motor base, wherein the structure, function, and operation principle of the motor base have been described in detail in the foregoing embodiments, and will not be described again here.

Specifically, a stator coil 8 in the motor is embedded on a stator core, a front end cover 9 is installed at the front end of a front pressing ring 1, and a rear end cover 10 is installed at the rear end of a rear pressing ring 2, wherein the rear part of the front end cover 9 extends into the front pressing ring 1, and the front part of the rear end cover 10 extends into the rear pressing ring 2. Therefore, the arrangement of the front end cover 9 and the rear end cover 10 does not affect the overall length of the motor base, so that the occupied space of the motor is saved, the structure of the motor is compact, the rigidity is high, and the reliability of the motor is improved.

As shown in fig. 4, in the process of heat dissipation, cooling air enters the rear pressure ring 2 from the air inlet 221, then enters the stator core through the inner hole of the second collar portion 21 and the plurality of second ventilation holes 211, then flows into the front pressure ring 1 through the inner hole of the first collar portion 11 and the plurality of first ventilation holes 111, and then directly flows to the outside through the front end cover 9, so that static pressure difference between an inlet and an outlet is low, overall wind resistance is small, and the cooling effect is good. In addition, the vortex caused by air flow separation is reduced, and the phenomenon of violent turbulence can not be generated, so that the aerodynamic noise generated by cooling air in the flowing process can be effectively reduced.

Specifically, the motor provided by the embodiment can reduce noise by at least 7 decibels compared with the noise generated by the same type of motor.

The motor provided by the embodiment in this market comprises a rotor 20, a rotating shaft 30, a stator coil 8, a bearing 40, a front end cover 9, a rear end cover 10 and the motor base, wherein the rotor 20 is sleeved on the rotating shaft 30, the stator coil 8 is embedded on a stator core of the motor, the bearing 40 is installed between the rotating shaft 30 and the front end cover 9 or the rear end cover 10, the motor base comprises a front pressing ring 1 and a rear pressing ring 2, the front pressing ring 1 is provided with a first stop ring part 11, the rear pressing ring 2 is provided with a second stop ring part 21, the stator core is positioned between the first stop ring part 11 and the second stop ring part 21, the front end cover 9 is installed at the front end of the front pressing ring 1, the rear end cover 10 is installed at the rear end of the rear pressing ring 2, the rear end of the front end cover 9 extends into the front pressing ring 1, and the front end of the rear end cover 10 extends into the rear pressing ring 2, therefore, the occupied space of the motor is reduced, the structure of, in addition, the motor provided by this embodiment, when heat dissipation is needed, the cooling air enters the rear pressure ring 2 from the air inlet 221, then enters the stator core through the inner hole of the second collar portion 21 and the plurality of second ventilation holes 211, then flows into the front pressure ring 1 through the inner hole of the first collar portion 11 and the plurality of first ventilation holes 111, and then directly flows to the outside through the front end cover 9, in this process, the contact area between the cooling air and the motor base is large, and the number of obstacles encountered in the flowing process is small, the overall wind resistance is small, the ventilation effect is good, in addition, because the number of obstacles encountered in the flowing process of the cooling air is small, the wind resistance is small, the airflow does not generate turbulence or vortex, and therefore, the noise generated in the flowing process of the cooling air can be effectively reduced, and the usability of the motor is improved.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A motor mount, comprising:

the front pressing ring is provided with a plurality of first vent holes;

2. The motor housing as set forth in claim 1, wherein said front clamping ring has a first collar portion extending toward said central axis, said rear clamping ring has a second collar portion extending toward said central axis, said first collar portion and said second collar portion being disposed opposite each other, said first plurality of ventilation holes opening onto said first collar portion, said second plurality of ventilation holes opening onto said second collar portion.

3. The motor mount in claim 2, wherein the first plurality of ventilation holes and the second plurality of ventilation holes are all spaced apart along a circumferential direction of the central axis.

4. The motor mount in claim 3, wherein the first vent and the second vent are long hanging holes or kidney-shaped holes.

5. The motor frame as in claim 2, wherein the first collar portion, the plurality of connectors, and the second collar portion collectively define a stator receiving cavity therebetween for receiving the motor stator.

6. The motor base according to claim 5, wherein the connecting member is a connecting plate, opposite ends of the connecting plate are respectively welded to the front pressing ring and the rear pressing ring, and a plate surface direction of the connecting plate faces the central axis.

7. The motor mount of any of claims 1-6, further comprising an upper hanger assembly, the upper hanger assembly comprising:

the base plate is used for hanging;

the first end of the second rib plate is connected to the base plate, and the second end of the second rib plate is connected to one connecting piece close to the upper hanging component;

8. The motor mount of any of claims 1-6, further comprising a support bracket, the support bracket comprising:

9. The motor base according to any one of claims 1 to 6, wherein the inner wall of the front pressing ring is provided with a plurality of reinforcing ribs distributed at intervals along the circumferential direction of the front pressing ring, and the inner wall of the rear pressing ring is provided with a plurality of reinforcing ribs distributed at intervals along the circumferential direction of the rear pressing ring.

10. An electric machine comprising a rotor, a rotating shaft, a stator coil, a bearing, a front end cap, a rear end cap, and the motor base according to any one of claims 1 to 9, wherein the rotor is fitted over the rotating shaft, the stator coil is fitted over a stator core of the electric machine, the front end cap is mounted on a front end of the front pressure ring, the rear end cap is mounted on a rear end of the rear pressure ring, and the bearing is mounted between the rotating shaft and the front end cap or the rear end cap.