CN109391076A

CN109391076A - Motor

Info

Publication number: CN109391076A
Application number: CN201710670185.0A
Authority: CN
Inventors: 曾宪波; 蔡诗韵
Original assignee: Thorne (china) Lattice Auto Parts Co Ltd
Current assignee: Thorne (china) Lattice Auto Parts Co Ltd
Priority date: 2017-08-08
Filing date: 2017-08-08
Publication date: 2019-02-26

Abstract

The present invention provides a kind of motors, have improved noise and vibrant characteristic.Motor includes first end cover and second end cover, the first end cover and second end cover cooperate to store motor stator, First elastic component and the second insulating element are provided between the first end cover and/or the second end cover and the end of motor stator, the First elastic component separates the first end cover and/or the second end cover and the end of the motor stator in the axial direction, and second insulating element separates the first end cover and/or the second end cover and the end of the motor stator radially.

Description

Motor

Technical field

The present invention relates to technical field of motors, more particularly it relates to improved vibration and noise properties Motor.

Background technique

There are two end cap, two end caps are linked together by fastener and are determined motor motor tool common in the art Son is fixed between two end caps.In motor operation, the vibration of motor stator may be transferred on end cap, and cause to shake Dynamic and noise etc..In addition, in low speed operation it is possible that formant, thus leads to magnetic noise sound.

The buffer component with turning between end cap and motor stator is provided in the prior art, and buffer component is generally by rubber Glue material is made, and rubber material is easy to happen aging under high temperature environment.

Summary of the invention

It is an object of the invention to solve or at least alleviate problems of the prior art；

According to some aspects, the present invention also aims to reduce the overall noise of motor and vibration；

The present invention also aims to simplify motor assembling steps；

The present invention also aims to improve motor radiating and service life.

According to an aspect of the present invention, a kind of motor is provided comprising first end cover and second end cover, the first end Lid and second end cover cooperate to store motor stator, the first end cover and/or the second end cover and motor stator Be provided with First elastic component and the second insulating element between end, the First elastic component make the first end cover and/or The second end cover and the end of the motor stator separate in the axial direction, and second insulating element makes the first end Lid and/or the second end cover and the end of the motor stator separate radially.

Detailed description of the invention

Referring to attached drawing, the disclosure of the present invention will become more readily understood.Skilled addressee readily understands that: this A little attached drawings are intended solely for illustrative purposes, and are not intended to limit the scope of protection of the present invention.In addition, similar in figure Number is to indicate similar component, in which:

Fig. 1 shows the partial cutaway view of the motor of embodiment according to the present invention；

Fig. 2 shows the partial cutaway views of one end of the motor of embodiment according to the present invention；

Fig. 3 shows the enlarged drawing of region A in Fig. 2；

Fig. 4 shows the second insulating element according to one embodiment；

Fig. 5 shows the First elastic component according to one embodiment；

Fig. 6 shows the First elastic component according to another embodiment；

Fig. 7 shows the First elastic component of the embodiment of Fig. 6 and the connection relationship of end cap；

Fig. 8 shows the First elastic component according to another embodiment；And

Fig. 9 and Figure 10 shows the First elastic component of the embodiment of Fig. 8 and the connection relationship of the second insulating element and end cap.

Specific embodiment

It is readily appreciated that, according to the technique and scheme of the present invention, in the case where not changing true spirit, the general skill of this field Art personnel can propose the various structures mode and implementation that can be replaced mutually.Therefore, following specific embodiments and Attached drawing is only the exemplary illustration to technical solution of the present invention, and is not to be construed as whole of the invention or is considered as to this hair Bright technical solution defines or limits.

It mentions in the present specification or up, down, left, right, before and after, front, the back side, top, the bottom that may mention etc. Positional terms are defined relative to each construction shown in the drawings, they are opposite concepts, and it is therefore possible to can root Correspondingly changed according to different location locating for it, different use states.So also should not be by these or others side Position term is construed to restricted term.

Fig. 1 shows the motor according to one embodiment, and motor according to the embodiment includes first end cover 1 and second end cover 2, first end cover 1 and second end cover 2 cooperate to store motor stator 4.First end cover 1 and second end cover 2 for example can be by It is combined together in fastener 3.It should be appreciated that the top half of motor has only been intercepted in Fig. 1, as it is well known, in addition to Outside above section, motor may also include the coiling on motor stator, rotor and connecting wire including armature spindle etc., by These parts are not related in the present invention, will not be in detailed description herein accordingly, with respect to the structure and features of these components.In electricity Machine run when, motor stator 4 can shake, especially electronics stator radial position it is unstable or with rotor concentricity it is poor When.It is desirable that, the vibration of motor stator 4 is not passed to first end cover 1 and second end cover 2, and first end cover 1 and as far as possible Two end caps 2 steadily support motor stator 4 radially.To realize the purpose, this application provides be arranged in first end cover 1 And/or the buffer structure 5 between second end cover 2 and motor stator 4, buffer structure 5 include First elastic component 52 and second Insulating element 51.Specific structure combination Fig. 2 of buffer structure 5 is described to specific embodiment shown in Fig. 10.

Fig. 2 and Fig. 3 is by taking the buffer structure between second end cover 2 and motor stator 4 as an example, it should be understood that same form of Buffer structure can be using between first end cover 1 and motor stator 4 or both first end cover 1 and second end cover 2 and motor stator 4 Between.Fig. 3 shows the enlarged view of a-quadrant in Fig. 2, can be more clearly visible that in Fig. 3, second end cover 2 and motor stator 4 End between be provided with First elastic component 521 and the second insulating element 51, First elastic component 521 make second end cover 2 with The end of motor stator 4 separates in the axial direction, and the second insulating element 51 makes the end of second end cover 2 and motor stator 4 in radial direction It is upper to separate.It should be appreciated that First elastic component 521 and the second insulating element 51 are individual, separable two components, this permits Perhaps different materials can be selected in the two, have different physically or chemically characteristics, such as different thermal diffusivities, heat-resisting quantity and elasticity Deng.

In some embodiments, the side wall 21 for limiting bottom wall 22 inside second end cover 2 and axially extending, the first elastic structure Part 521 is the ring washer being arranged between bottom wall 22 and the end of motor stator.More specifically, First elastic component 521 is set It sets in the axially external of the end of motor stator and in the axially inner side of the bottom wall of second end cover 2 22.First elastic component 521 can It is chosen to that there is larger elastic material to be made, is such as made of rubber.In some embodiments, First elastic component 521 can be selected The damping washer suppressed by silk screen, the damping washer such as suppressed by the silk screen of metal material, equally has certain elasticity.First The vibration that motor stator 4 can be effectively prevented in elastic component 521 is transferred to second end cover 2.In some embodiments, the first elasticity Component 521 may include limit features 5211, and limit features 5211 are used to First elastic component 521 being connected to second end cover 2.? In other embodiments, First elastic component 521 can also pass through other suitable modes such as bonding without limit features and only To be connected to second end cover 2.

In some embodiments, the side wall 21 of second end cover 2 and the end of motor stator is arranged in the second insulating element 51 Between.More specifically, the second insulating element 51 the end of motor stator radial outside and in the radially inner side of side wall 21.? In some embodiments, the end 4 of motor stator has a narrowed portion 41, which has more slightly smaller than motor stator main body straight Diameter, the second insulating element 51 may be provided in the narrowed portion 41 of the end 4 of motor stator.

Fig. 4 shows one embodiment of the second insulating element 51, and the second insulating element 51 is to cover in this embodiment Annular collar on the end 4 of motor stator.In some embodiments, the second insulating element 51 can be band or net, such as insulating paper Band or wire mesh.Second insulating element 51 may be selected have more small material relative to First elastic component 52, thus Motor stator position in the radial direction can firmly be fixed.Non-aging material can be selected in second insulating element 51, such as insulate Paper tape or the lasso suppressed by wire mesh, thus avoid the motor stator caused by rubber material ages in the radial direction Vibration.In some embodiments, the second insulating element can have lesser thickness, be, for example, less than 1mm, more particularly, be less than 0.5mm can be such as 0.4mm or so.Since 51 selection of the second insulating element is not limited to rubber, the second insulating element 51 can have There is relatively smaller thickness, be further ensured that motor stator stability in the radial direction and the concentricity of itself and rotor, guarantees Uniform air gap between rotor and stator, further decreases motor noise and vibration.

It is special that Fig. 5 shows limit according to the magnified partial view of the First elastic component 521 of one embodiment and thereon Sign 5211.In some embodiments, the limit features 5211 of First elastic component 521 are to extend along First elastic component circumference Continuous protrusion.As become apparent from Fig. 3 illustratively, the continuous protrusion of First elastic component 521 is cooperated to the bottom wall 22 of second end cover 2 On slot in, and be thus connected to the inside of second end cover 2.In alternative embodiment, limit features can be for along the first elasticity The separated protrusion of the multistage of 521 circle distribution of component.

Fig. 6 and Fig. 7 shows the First elastic component 522 according to another embodiment.The First elastic component 522 has Circumferential multiple hemisphere juts 5221 (being four in figure).As being clearly shown in 7, First elastic component 522 Hemisphere jut 5221 is equally engaged in the respective slot at the bottom wall 22 of second end cover 2, such as is stuck in notch, to make One elastic component 522 can be fixed to second end cover 2.In an alternative embodiment, hemisphere jut 5221 can be by other suitable shapes Protrusion substitution, such as T shape protrusion.In addition, the quantity and position of hemisphere jut 5221 and T shape protrusion also can be changed.

Fig. 8, Fig. 9 and Figure 10 show the First elastic component 523 according to another embodiment.In this embodiment, One elastic component 523 is (to be in figure along multiple T shape protrusions 5231 extended radially outward of First elastic component circle distribution Four).It is clearly shown in Fig. 9, T shape protrusion 5231 is engaged in the correspondence notch of the side wall 21 of second end cover 2.Then, such as Shown in Figure 10, the second insulating element 51 is then in connection (such as passing through bonding) to the side wall 21 of second end cover 2.In alternative implementation In example, T shape protrusion 5231 can also be substituted by the protrusion of other forms extended radially outward, such as hemisphere jut.In addition, T shape The quantity and position of protrusion 5231 or hemisphere jut also can be changed.

In some embodiments, it can be assembled as follows according to the motor of each embodiment of the application, comprising: first First elastic component 52 is connected in first end cover and/or second end cover, for example, by the bottom wall of limit features and end cap or Second insulating element can be then connected in first end cover and/or second end cover, such as be bonded to end cap by the cooperation of side wall Side wall on, finally connect first end cover and second end cover, and motor stator is placed in therebetween, thus complete assembling.By this Mode, motor are convenient to assemble.In an alternative embodiment, at least one of First elastic component and the second insulating element It can be first connected on motor stator.

Compared to existing design, the advantage of the application includes but is not limited to:

Material with preferable thermal diffusivity and non-aging may be selected in the second separated insulating element used.

End cap and motor stator can be easily assembled after the second insulating element is connected to end cap, guarantees the peace of motor stator Thus the concentricity of holding position and itself and rotor reduces motor and integrally shakes and noise.

The limit features of First elastic component are further simplified motor assembling steps.

Specific embodiment described above only for more clearly describing the principle of the present invention, wherein be clearly shown or It describes all parts and is easier to understand the principle of the present invention.Without departing from the scope of the invention, this field Technical staff can easily the present invention be carry out various modifications or be changed.Therefore it should be understood that these modifications or variation It should be included within scope of patent protection of the invention.

Claims

1. a kind of motor comprising first end cover (1) and second end cover (2), the first end cover (1) and second end cover (2) phase Mutually cooperation is to store motor stator (4), the first end cover (1) and/or the second end cover (2) and the motor stator (4) End between be provided with First elastic component (52) and the second insulating element (51), the First elastic component (52) makes described First end cover (1) and/or the second end cover (2) and the end of the motor stator (4) separate in the axial direction, described second every The end of the first end cover (1) and/or the second end cover (2) and the motor stator (4) is set to exist from component (51) Radially separate.

2. motor according to claim 1, which is characterized in that the first end cover (1) and/or the second end cover (2) The side wall (22) that inside limits bottom wall (21) and axially extends, the First elastic component (52) are to be arranged in the bottom wall (21) ring washer between the end of the motor stator (4).

3. motor according to claim 2, which is characterized in that the First elastic component (52) is for rubber washer or by gold Belong to the damping washer of silk screen compacting.

4. motor according to claim 2 or 3, which is characterized in that the First elastic component (52) includes limit features (5211,5221,5231) to be connected to the first end cover (1) and/or the second end cover (2).

5. motor according to claim 4, which is characterized in that the limit features (5211,5221) are along the first elasticity The continuous protrusion that component circumference extends, such as semi-circular cross-section protrusion or for along multiple protrusions of First elastic component circle distribution, As hemisphere jut or T shape protrusion, the limit features (5211,5221) are engaged in the corresponding groove of the bottom wall (22).

6. motor according to claim 4, which is characterized in that the limit features (5213) are along First elastic component circle Multiple protrusions extended radially outward of week distribution, as hemisphere jut or T shape protrusion, the limit features (5213) are engaged to In the correspondence notch of the side wall (22).

7. motor according to claim 2 or 3, which is characterized in that second insulating element (51) setting is described the Between the end of the side wall (22) and the motor stator (4) of one end cap (1) and/or the second end cover (2).

8. motor according to claim 7, which is characterized in that the end of the motor stator (4) has narrowed portion (41).

9. motor according to claim 7, which is characterized in that second insulating element (51) is to cover to determine in the motor Annular collar on the end of sub (4).

10. motor according to claim 7, which is characterized in that second insulating element (51) is insulating paper strip or is The lasso suppressed by wire mesh.