CN211266702U

CN211266702U - Vibration reduction arrangement connecting structure of motor controller

Info

Publication number: CN211266702U
Application number: CN202020372208.7U
Authority: CN
Inventors: 刘蕾; 商瑞; 吴鸿信; 杨洋; 王娟娟; 王品品
Original assignee: Jee Automation Equipment Shanghai Co ltd
Current assignee: Jee Automation Equipment Shanghai Co ltd
Priority date: 2020-03-23
Filing date: 2020-03-23
Publication date: 2020-08-14
Anticipated expiration: 2030-03-23

Abstract

The utility model discloses a connection structure is arranged in damping of machine controller, this structure include controller, motor casing and reduction gear housing, are provided with a plurality of fixed stabilizer blades of being connected with motor casing or reduction gear housing on the controller, and the fixed stabilizer blade of part passes through screw rigid connection, and all the other fixed stabilizer blades pass through screw and damping pad flexonics. The utility model discloses install the damping pad and form flexonics on the main propagation path of noise excitation, can filter most vibration energy, reduce the noise, and form rigid connection with the screw on non-propagation path, guarantee entire system's rigidity, prevent whole controller suspension vibration, reduce the amplitude of controller, guarantee inside electronic component's vibration reliability.

Description

Vibration reduction arrangement connecting structure of motor controller

Technical Field

The utility model relates to an electric drive system field, more specifically relate to a connection structure is arranged to motor controller's damping.

Background

The requirement of electric automobile to power density is more and more, and trinity has become electric automobile's development trend even more unification, requires electric drive system miniaturization, and the consumer is improved more and more to whole car travelling comfort, noise and requirement simultaneously, has brought bigger challenge for NVH.

The noise sources of the electric drive system are a motor and a speed reducer, a part of a fixed supporting leg of a controller is usually arranged on a motor shell, a part of the fixed supporting leg is usually arranged on a speed reducer shell, and the vibration of the motor and the speed reducer is necessarily transmitted to the inside of the controller through the supporting leg to cause the vibration of the controller and internal parts, so that the noise is difficult to avoid, and the service life and the performance of electronic devices in the controller are influenced.

In the existing technical scheme, the controller support legs are generally connected with the motor shell and the speed reducer shell through screws. Can increase the damping pad among some technical scheme, the damping pad design is mostly the structure of metal shim and rubber spare separation.

However, the controller legs are rigidly connected to the motor housing and the reducer housing, and the excitation from the motor and the reducer can be directly transmitted to the inside of the controller through the rigid connection, causing vibration of the controller housing, the upper cover plate and the inner PCBA, causing damage or failure of the inner electronic components, and generating noise, reducing the NVH effect. The metal gasket and the rubber piece are required to be respectively installed on the vibration damping pad with the separation structure, the assembly is complex, the number of materials is large, meanwhile, frequent friction is caused between metal and rubber, and the service life of the vibration damping pad is shortened.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a connection structure is arranged to machine controller's damping, it has the effect that reduces the vibration, reduces the noise, can reduce the assembly step simultaneously, improves damping pad life.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a connection structure is arranged in damping of machine controller, includes controller, motor casing and reduction gear casing, be provided with on the controller a plurality ofly with the fixed stabilizer blade that motor casing or reduction gear casing are connected, part fixed stabilizer blade passes through screw rigid connection, all the other fixed stabilizer blade passes through screw and damping pad cooperation flexonics.

Further, the damping pad includes last damping pad and lower damping pad, go up damping pad and lower damping pad and be metal rubber integral type structure.

Further, go up the damping pad and include metal gasket and last damping pad colloid, metal gasket and last damping pad colloid fixed connection.

Further, lower damping pad includes metal framework and lower damping pad colloid, metal framework and lower damping pad colloid fixed connection.

Furthermore, after the lower vibration damping pad colloid penetrates through the fixed supporting leg, the end part of the lower vibration damping pad colloid is connected with the upper vibration damping pad colloid in a clamping and embedding manner.

Furthermore, the outer side wall of the end part of the lower vibration damping pad colloid is provided with a limiting bulge, and the inner side wall of the upper vibration damping pad colloid is provided with a limiting clamping groove matched with the limiting bulge.

Further, a portion of the fixing leg on the controller, which is far away from one end of the reducer housing, is rigidly connected to the motor housing through the screw.

To sum up, the utility model discloses following beneficial effect has:

1. the damping pad is adopted, and the excitation energy of the motor and the reducer is attenuated through the rubber body of the damping pad, so that the effects of reducing vibration energy and reducing noise are achieved;

2. the damping pad is designed in a metal rubber vulcanization integrated mode, so that the number of parts and assembly steps can be reduced, friction between metal and rubber is reduced, and the service life of the damping pad is prolonged;

3. the vibration damping pad is arranged on a main propagation path excited by noise to form flexible connection, most of vibration energy can be filtered, and noise is reduced, while the rigid connection is formed on a non-propagation path by using a screw, so that the rigidity of the whole system is ensured, the whole controller is prevented from suspension vibration, the amplitude of the controller is reduced, and the vibration reliability of internal electronic elements is ensured.

Drawings

Fig. 1 is a first schematic diagram of a vibration damping arrangement connection structure of a motor controller in an embodiment;

FIG. 2 is a second schematic view of a damping arrangement connection structure of a motor controller according to an embodiment;

fig. 3 is a partial sectional view of a vibration damping arrangement connecting structure of a motor controller in an embodiment.

In the figure: 1. a controller; 11. a first fixed leg; 12. a second fixed leg; 13. a third fixed leg; 14. a fourth fixed leg; 15. a fifth fixing leg; 2. a motor housing; 3. a reducer housing; 4. a vibration damping pad; 411. mounting a vibration damping pad colloid; 412. a metal gasket; 413. a limiting clamping groove; 421. lower vibration damping pad colloid; 422. a metal skeleton; 423. a stepped groove; 424. a limiting bulge; 5. and (4) screws.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications to the present embodiment without inventive contribution as required after reading the present specification, but all of them are protected by patent laws within the scope of the claims of the present invention.

Example (b):

referring to fig. 1 and 2, the vibration damping arrangement connecting structure of a motor controller includes a controller 1, a motor housing 2 and a reducer housing 3, in this embodiment, the controller 1 is provided with five fixing support legs connected to the motor housing 2 or the reducer housing 3, including a first fixing support leg 11, a second fixing support leg 12, a third fixing support leg 13, a fourth fixing support leg 14 and a fifth fixing support leg 15.

Referring to fig. 1 and 2, a first fixing leg 11 and a second fixing leg 12 are close to the reducer housing 3, and a third fixing leg 13 is close to the motor housing 2, which are main propagation paths of vibrations; the fourth fixing support leg 14 and the fifth fixing support leg 15 are arranged at one end of the controller 1 far away from the reducer shell 3 and the motor shell 2; in the embodiment, the fourth fixing support leg 14 and the fifth fixing support leg 15 are rigidly connected through the screw 5, and the first fixing support leg 11, the second fixing support leg 12 and the third fixing support leg 13 are flexibly connected with the vibration damping pad 4 through the screw 5 in a matching manner; rigid connection and flexible connection cooperation can filter most vibration energy on the one hand, reduce the noise, and on the other hand can guarantee the rigid connection between the casing, is unlikely to the amplitude too big.

Referring to fig. 3, in the present embodiment, the damping pad 4 includes an upper damping pad and a lower damping pad, both of which are metal rubber integrated structures; meanwhile, the damping pad 4 can also adopt an integrated metal rubber structure; the metal rubber integrated structure can reduce the number of parts and assembling steps, reduce friction between metal and rubber, and prolong the service life of the damping pad 4.

Referring to fig. 3, the upper vibration damping pad includes a metal gasket 412 and an upper vibration damping pad colloid 411, the upper vibration damping pad colloid 411 is connected with the end face of the metal gasket 412, and the two are fixed into a whole through a vulcanization process; the lower vibration damping pad comprises a metal framework 422 and a lower vibration damping pad colloid 421, wherein the metal framework 422 is T-shaped, the lower vibration damping pad colloid 421 is sleeved on the metal framework 422, and the lower vibration damping pad colloid and the metal framework 422 are fixed into a whole through a vulcanization process.

Referring to fig. 3, when the damper is installed, the lower damping pad is in contact with the reducer case 3, the second fixing leg 12 is sleeved on the lower damping pad colloid 421, and the outer side wall of the lower damping pad colloid 421 is provided with a stepped groove 423 for supporting the second fixing leg 12; the end part of the lower vibration damping pad colloid 421 protrudes out of the second fixed supporting leg 12 and is connected with the upper vibration damping pad colloid 411 in a clamping and embedding manner, and the upper vibration damping pad colloid 411 is in contact with the second fixed supporting leg 12; after assembly, the metal framework 422 and the metal gasket 412 are pressed tightly through the screw 5 to play a role in limiting the axis; the upper vibration damping pad colloid 411 and the lower vibration damping pad colloid 421 clamp the second fixing support leg 12 therebetween, and the rubber body can be deformed to play a role in vibration damping.

Referring to fig. 3, in the lower vibration damping pad colloid 421 of the present embodiment, the outer side wall of the end portion is provided with a limiting protrusion 424, and the inner side wall of the upper vibration damping pad colloid 411 is provided with a limiting clamping groove 413 matched with the limiting protrusion 424; spacing protruding 424 and the cooperation of spacing draw-in groove 413 can prevent to go up the damping pad and break away from with lower damping pad.

Claims

1. The utility model provides a connection structure is arranged in damping of motor controller, includes controller, motor casing and reduction gear casing, be provided with on the controller a plurality ofly with the fixed stabilizer blade that motor casing or reduction gear casing are connected, its characterized in that: and part of the fixed support legs are rigidly connected through screws, and the rest of the fixed support legs are flexibly connected with the vibration damping pad through screws in a matched manner.

2. The vibration damping arrangement connection structure of a motor controller according to claim 1, characterized in that: the damping pad comprises an upper damping pad and a lower damping pad, wherein the upper damping pad and the lower damping pad are of metal rubber integrated structures.

3. The vibration damping arrangement connection structure of a motor controller according to claim 2, wherein: the upper vibration damping pad comprises a metal gasket and an upper vibration damping pad colloid, and the metal gasket is fixedly connected with the upper vibration damping pad colloid.

4. The vibration damping arrangement connection structure of a motor controller according to claim 3, wherein: the lower vibration damping pad comprises a metal framework and a lower vibration damping pad colloid, and the metal framework is fixedly connected with the lower vibration damping pad colloid.

5. The vibration damping arrangement connection structure of a motor controller according to claim 4, wherein: and after the lower vibration damping pad colloid penetrates through the fixed supporting feet, the end part of the lower vibration damping pad colloid is connected with the upper vibration damping pad colloid in a clamping and embedding manner.

6. The vibration damping arrangement connection structure of a motor controller according to claim 5, wherein: the outer side wall of the end part of the lower vibration damping pad colloid is provided with a limiting bulge, and the inner side wall of the upper vibration damping pad colloid is provided with a limiting clamping groove matched with the limiting bulge.

7. The vibration damping arrangement connection structure of a motor controller according to any one of claims 1 to 6, wherein: and the part of the fixing support leg on one end of the controller, which is far away from the speed reducer shell, is rigidly connected with the motor shell through the screw.