CN210297365U - Motor stator with vibration isolation function - Google Patents
Motor stator with vibration isolation function Download PDFInfo
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- CN210297365U CN210297365U CN201921574244.5U CN201921574244U CN210297365U CN 210297365 U CN210297365 U CN 210297365U CN 201921574244 U CN201921574244 U CN 201921574244U CN 210297365 U CN210297365 U CN 210297365U
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- metal plate
- stator
- vibration isolation
- rubber layer
- motor
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Abstract
The utility model discloses a motor stator with vibration isolation function, including stator core assembly and stator frame, a plurality of notches have been seted up to the outer lane department of stator core assembly's yoke portion, are provided with the vibration isolation subassembly in the notch, and in stator core assembly embedding stator frame, the vibration isolation subassembly was connected on the inner wall of stator frame. The vibration isolation assembly comprises a first metal plate and a second metal plate, and a rubber layer is fixedly connected between the first metal plate and the second metal plate. The utility model discloses a set up the vibration isolation subassembly between stator core assembly and stator base, solved the big problem of vibration of traditional motor structure footing department, do not reduce motor power density simultaneously, solved high power density and low vibration and be difficult to a difficult problem concurrently. The structure of the vibration isolation assembly and the stator core assembly has the functions of axially tensioning and positioning the stator core, can completely replace the function of a buckle piece in the traditional motor, namely achieves the purpose of vibration isolation, and also reduces the complexity of the structural design of the motor.
Description
Technical Field
The utility model relates to a motor stator field, concretely relates to motor stator with vibration isolation function.
Background
The main source of the motor vibration noise is electromagnetic vibration, and particularly when the electromagnetic excitation frequency is close to the modal frequency of the stator core, the electromagnetic excitation force with small amplitude can generate large vibration due to resonance. Therefore, the stator core is a main source of vibration noise of the motor in terms of a vibration transmission path. When the traditional motor stator structure is designed, a stator core is generally in rigid connection with a machine base, the transmission attenuation of vibration energy is small, and the vibration noise of machine legs is overlarge. The traditional vibration reduction design mainly focuses on the optimization and suppression of the electromagnetic force in the motor, such as limiting the air gap flux density amplitude and optimizing the flux density waveform, so that the electromagnetic excitation source causing the vibration of the stator core to be increased is reduced, but the suppression of the air gap flux density amplitude inevitably leads to the reduction of the motor output and the reduction of the motor power density. With the demand of social development, the industrial demand for high power density and low vibration noise motors is higher and higher. In particular, in some military propulsion fields, the requirements on the power density and the vibration noise of the motor are very urgent. The traditional design method cannot simultaneously satisfy the requirements of high power density and low vibration.
SUMMERY OF THE UTILITY MODEL
The problem that can't satisfy high power density and low vibration simultaneously concurrently to traditional damping mode, the utility model provides a motor stator with vibration isolation function.
The utility model adopts the following technical proposal:
a motor stator with vibration isolation function comprises a stator core assembly and a stator base, wherein a plurality of notches are formed in the outer ring of a yoke part of the stator core assembly, vibration isolation assemblies are arranged in the notches, the stator core assembly is embedded into the stator base, and the vibration isolation assemblies are connected to the inner wall of the stator base;
the vibration isolation assembly comprises a first metal plate and a second metal plate, a rubber layer is fixedly connected between the first metal plate and the second metal plate, and high-temperature glue is coated on the contact surfaces of the rubber layer and the first metal plate and the contact surfaces of the rubber layer and the second metal plate;
the second metal plate is connected in the notch, the outer wall of the second metal plate is welded with the upper cross point of the notch, and two ends of the second metal plate are welded with two ends of the notch;
the first metal plate is fixedly connected with the inner wall of the stator frame.
Preferably, at least one metal plate is embedded in the rubber layer.
Preferably, the inner sides of the first metal plate and the second metal plate are provided with grooves, the rubber layer is provided with protrusions, the protrusions are inserted into the grooves, and the rubber layer is connected between the first metal plate and the second metal plate.
Preferably, tooth grooves are formed in the inner sides of the first metal plate and the second metal plate, saw teeth are arranged on the rubber layer, the saw teeth are inserted into the tooth grooves, and the rubber layer is connected between the first metal plate and the second metal plate.
Preferably, the upper part of the notch is provided with a chamfer, and the outer wall of the second metal plate is welded with the intersection point of the chamfer.
Preferably, the first metal plate is connected with the inner wall of the stator frame in a manner that the first metal plate and the inner wall of the stator frame are welded together through two end points, connected together through a shrink-fit process, connected together through a key or connected together through a pin.
Preferably, the high-temperature glue is JL-499.
The utility model has the advantages that:
the utility model provides a motor stator through set up the vibration isolation subassembly between stator core assembly and stator base, has solved the big problem of vibration of traditional motor structure footing department, when solving the vibration problem, does not reduce motor power density, has solved high power density and low vibration and has been difficult to the difficult problem that can be obtained concurrently. The vibration of the motor iron core is effectively attenuated and isolated, and the aim of reducing the vibration of the bottom foot is fulfilled.
The structure of the vibration isolation assembly and the stator core assembly has the functions of axially tensioning and positioning the stator core, can completely replace the function of a buckle piece in the traditional motor, namely achieves the purpose of vibration isolation, and also reduces the complexity of the structural design of the motor.
Drawings
Fig. 1 is a schematic view of a stator core assembly.
Fig. 2 is a schematic structural diagram of a motor stator with vibration isolation.
Fig. 3 is a cross-sectional view of the vibration isolation assembly.
Fig. 4 is a schematic view of the vibration isolation assembly mounted within the slot.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
example 1
Referring to fig. 1 to 4, a stator of an electric motor with vibration isolation includes a stator core assembly 1 and a stator frame 2.
Wherein, the notch 4 of a plurality of rectangular shapes is seted up in 3 departments of the outer lane of yoke portion of stator core subassembly, and the quantity of notch is unfixed, sets up according to the actual demand.
The notch is divided into two parts, one part is a straight groove section 5, the depth of the straight groove section is more than or equal to 0.5mm, and the upper part of the notch is chamfered 6 according to the actual welding operation space.
The angle of the chamfer 6 may be set to 45 °.
The notch 4 is internally provided with a strip-shaped vibration isolation assembly 7, the stator core assembly is embedded into the stator base, and the vibration isolation assembly is connected on the inner wall of the stator base 2.
Specifically, the stator core assembly 1 with the vibration isolation assembly 7 is shrink-fitted into the stator frame 2.
Specifically, the vibration isolation assembly 7 is welded within the slot 4.
The vibration isolation assembly 7 and the inner wall of the stator frame 2 are connected in a welding mode, a shrink fit process connection mode, a key connection mode or a pin connection mode.
The vibration isolation assembly 7 includes a first metal plate 8 and a second metal plate 9, between which a rubber layer 10 is fixedly connected.
As shown in fig. 3 and 4, grooves are formed on the inner sides of the first metal plate and the second metal plate, and protrusions 11 are formed on the rubber layer and inserted into the grooves to connect the rubber layer between the first metal plate and the second metal plate.
The contact surfaces of the rubber layer and the first metal plate and the second metal plate are coated with high-temperature glue, and the model of the high-temperature glue is JL-499.
The second metal plate 9 is connected in the notch, the intersection point of the outer wall of the second metal plate 9 and the chamfer 6 is welded together, and two ends of the second metal plate and two ends of the notch are welded together.
The first metal plate 8 is connected with the inner wall of the stator base in a mode that the first metal plate and the inner wall of the stator base are welded together through two end points, connected together through a shrink fit process, connected together through keys or connected together through pins.
Example 2
The present embodiment is substantially the same as embodiment 1.
The different places are: at least one layer of metal plate is embedded in the rubber layer, the metal plate is embedded in the rubber layer to improve the vibration isolation effect of the vibration isolation assembly, and the vibration attenuation effect of the rubber layer embedded in the metal plate is much better than that of a pure rubber layer.
Example 3
The present embodiment is substantially the same as embodiment 1.
The different places are: the inner sides of the first metal plate and the second metal plate are provided with tooth grooves, the rubber layer is provided with sawteeth, the sawteeth are inserted into the tooth grooves, and the rubber layer is connected between the first metal plate and the second metal plate. The contact surfaces of the rubber layer and the first metal plate and the second metal plate are coated with high-temperature glue.
Of course, the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and the changes, modifications, additions or substitutions made by those skilled in the art within the scope of the present invention should also belong to the protection scope of the present invention.
Claims (7)
1. A motor stator with vibration isolation function comprises a stator core assembly and a stator base, and is characterized in that a plurality of notches are formed in the outer ring of a yoke part of the stator core assembly, vibration isolation assemblies are arranged in the notches, the stator core assembly is embedded into the stator base, and the vibration isolation assemblies are connected to the inner wall of the stator base;
the vibration isolation assembly comprises a first metal plate and a second metal plate, a rubber layer is fixedly connected between the first metal plate and the second metal plate, and high-temperature glue is coated on the contact surfaces of the rubber layer and the first metal plate and the contact surfaces of the rubber layer and the second metal plate;
the second metal plate is connected in the notch, the outer wall of the second metal plate is welded with the upper cross point of the notch, and two ends of the second metal plate are welded with two ends of the notch;
the first metal plate is fixedly connected with the inner wall of the stator frame.
2. The stator of an electric motor with vibration isolation function as claimed in claim 1, wherein at least one metal plate is embedded in said rubber layer.
3. The motor stator with vibration isolation according to claim 1, wherein the first metal plate and the second metal plate have grooves formed on inner sides thereof, and the rubber layer has protrusions inserted into the grooves to connect the rubber layer between the first metal plate and the second metal plate.
4. The motor stator with vibration isolating function as claimed in claim 1, wherein the first and second metal plates have tooth grooves formed on inner sides thereof, and the rubber layer has saw teeth inserted into the tooth grooves to connect the rubber layer between the first and second metal plates.
5. The stator for an electric motor with vibration isolating function as claimed in claim 1, wherein the upper portion of the slot is provided with a chamfer, and the outer wall of the second metal plate is welded to the intersection of the chamfers.
6. The stator for an electric motor with vibration isolation according to claim 1, wherein the first metal plate is coupled to the inner wall of the stator frame in such a manner that the first metal plate and the inner wall of the stator frame are welded together at both ends, coupled together by a shrink-fit process, keyed together, or pinned together.
7. The stator of motor with vibration isolation function as claimed in claim 1, wherein the high temperature glue is of type JL-499.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921574244.5U CN210297365U (en) | 2019-09-20 | 2019-09-20 | Motor stator with vibration isolation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921574244.5U CN210297365U (en) | 2019-09-20 | 2019-09-20 | Motor stator with vibration isolation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210297365U true CN210297365U (en) | 2020-04-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921574244.5U Active CN210297365U (en) | 2019-09-20 | 2019-09-20 | Motor stator with vibration isolation function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561439A (en) * | 2020-05-15 | 2020-08-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner with same |
-
2019
- 2019-09-20 CN CN201921574244.5U patent/CN210297365U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561439A (en) * | 2020-05-15 | 2020-08-21 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner with same |
| CN111561439B (en) * | 2020-05-15 | 2022-04-05 | 珠海格力节能环保制冷技术研究中心有限公司 | Compressor and air conditioner with same |
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