CN212909171U - Plastic package end cover and motor thereof - Google Patents
Plastic package end cover and motor thereof Download PDFInfo
- Publication number
- CN212909171U CN212909171U CN202021829166.1U CN202021829166U CN212909171U CN 212909171 U CN212909171 U CN 212909171U CN 202021829166 U CN202021829166 U CN 202021829166U CN 212909171 U CN212909171 U CN 212909171U
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- China
- Prior art keywords
- cover body
- plastic package
- motor
- cover
- end cover
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- 239000004033 plastic Substances 0.000 title claims abstract description 59
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 13
- 238000007789 sealing Methods 0.000 claims abstract description 11
- 230000035939 shock Effects 0.000 claims abstract description 5
- 238000013016 damping Methods 0.000 claims description 15
- 239000011094 fiberboard Substances 0.000 claims description 9
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 5
- 239000008397 galvanized steel Substances 0.000 claims description 5
- 230000007423 decrease Effects 0.000 claims description 2
- 229910000831 Steel Inorganic materials 0.000 claims 1
- 238000005538 encapsulation Methods 0.000 claims 1
- 239000000123 paper Substances 0.000 claims 1
- 239000010959 steel Substances 0.000 claims 1
- 238000001746 injection moulding Methods 0.000 abstract description 9
- 230000003044 adaptive effect Effects 0.000 abstract description 3
- 235000008331 Pinus X rigitaeda Nutrition 0.000 description 3
- 235000011613 Pinus brutia Nutrition 0.000 description 3
- 241000018646 Pinus brutia Species 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 238000005056 compaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000004806 packaging method and process Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000012778 molding material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 239000011087 paperboard Substances 0.000 description 1
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Abstract
The utility model discloses a plastic package end cover and a motor thereof, which comprises a cover body internally provided with a bearing chamber and a fixed part connected with the cover body; one side of the cover body, which is far away from the fixing part, is provided with a reinforcing part which protrudes outwards; the central position of the reinforcing part is provided with a through hole; the fixing part comprises an embedding part and a connecting part for connecting the embedding part and the cover body; the outer side of the embedding part is provided with an upward convex sealing edge; the outside cover of lid has the shock attenuation rubber ring. The plastic package end cover is adaptive to motors with different specifications by arranging the cover bodies with different heights, so that the injection molding cost is reduced, and the compatibility and the universality of the plastic package end cover are improved; through the arrangement of the cover body and the reinforcing part, the coaxiality of the cover body and the through hole is improved, and the running quality of the motor is ensured; through setting up the shock attenuation rubber ring, avoid producing the noise because of vibrations between lid and the motor, improve the quality of motor.
Description
Technical Field
The utility model belongs to the technical field of the motor technique and specifically relates to a plastic envelope end cover and motor thereof.
Background
At present, in the production process of a motor, parts such as a rotor, a plastic package end cover and a damping rubber ring with corresponding specifications need to be selected according to market demands for assembly, and the specification of an injection molding stator of the plastic package motor is selected according to different motor performances. However, the different specifications of the existing plastic package motor product have poor performance, and in order to meet the market demand and the motor performance, a large-size motor shell is often used, so that a large amount of injection molding materials are consumed, the structural compactness of the motor is also sacrificed, and the condition that the load and the motor are loosely matched can also occur in some application scenes, so that the problems of vibration, noise and the like of the load can be caused.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, an object of the present invention is to provide a plastic package end cover and a motor thereof, which are used for improving the assembly flexibility of the plastic package motor.
The utility model provides a technical scheme that its problem adopted is:
in a first aspect of the present invention, a plastic package end cap comprises a cap body with a bearing chamber therein and a fixing portion connected to the cap body; a reinforcing part protruding outwards is arranged on one side of the cover body away from the fixing part; a through hole is formed in the central position of the reinforcing part; the fixing part comprises an embedded part and a connecting part for connecting the embedded part and the cover body; the outer side of the embedding part is provided with an upward convex sealing edge; and a damping rubber ring is sleeved on the outer side of the cover body.
The plastic package end cover at least has the following beneficial effects: the plastic package end cover is adaptive to motors with different specifications by arranging the cover bodies with different heights, so that the injection molding cost is reduced, and the compatibility and the universality of the plastic package end cover are improved; through the arrangement of the cover body and the reinforcing part, the coaxiality of the cover body and the through hole is improved, and the running quality of the motor is ensured; the connection stability of the plastic package end cover and the motor is ensured through the embedding part and the edge sealing, and the reliability of the plastic package end cover is also improved; through setting up the shock attenuation rubber ring, avoid producing the noise because of vibrations between lid and the motor, improve the quality of motor.
Further, the outer diameter of the connecting part is gradually reduced in the direction approaching the cover body. This kind of structure has improved the intensity of connecting portion, has guaranteed the connection stability of embedding portion and lid.
Further, the outer diameter of the damping rubber ring is smaller than the outer diameter of the embedding part. The structure facilitates the embedding of the embedded part and the sealing edge into the motor more stably, and improves the stability of the plastic package end cover.
Furthermore, the outer side of the damping rubber ring is provided with an anti-skid block. Through setting up the non slipping spur, avoid taking place the condition that displacement and pine take off at motor operation in-process motor and lid.
Further, the anti-skidding blocks are uniformly arranged on the outer side of the damping rubber ring around the central shaft of the damping rubber ring. The structure ensures the connection stability between the cover body and the motor, so that the inner wall of the motor can more stably support the cover body, and the cover body is prevented from loosening.
Further, the cover body and the fixing portion are made of galvanized steel sheets. The galvanized steel sheet has high corrosion resistance and hardness, and the stability of the plastic package end cover is improved.
In a second aspect of the present invention, a motor comprises a housing, a bearing, a rotating shaft and the plastic-sealed end cap; a plastic package part is arranged in the shell, and the plastic package end cover is inserted into the plastic package part through the embedding part and is fixedly connected with the shell; the bearing is embedded in the cover body, and the rotating shaft penetrates through the through hole to be connected with the bearing.
Further, a red vulcanized fiber board with a buffering function is arranged between the cover body and the bearing. Through setting up red vulcanized fiber board, avoid lid and shell to take place hard friction, cause the damage of motor.
Further, a wave washer is arranged between the red vulcanized fiber board and the bearing. Through setting up the wave form packing ring, can effectively reduce the axial of lid and move, carry out the pre-compaction to the bearing clearance of bearing simultaneously, reduce the vibration and the noise of motor, promote the motor quality.
Further, the plastic package part is made of BMC. The BMC material has outstanding dimensional stability, heat resistance and electrical performance, so that the plastic package part can firmly fix the embedded part in the shell.
The beneficial effect of above-mentioned motor is: by arranging the plastic package end cover, the cover body with proper height can ensure the connection stability with the shell, reduce the volume of the plastic package part and reduce the injection molding cost; through the arrangement of the cover body and the reinforcing part, the coaxiality of the cover body and the through hole is improved, and the running quality of the motor is ensured; the connection stability of the plastic package end cover and the motor is ensured through the embedding part and the edge sealing, and the reliability of the plastic package end cover is also improved; through setting up red vulcanized fiber board and wave washer, reduce the vibration and the noise of motor effectively, promote the motor quality.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
The above and additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
fig. 1 is a structural diagram of a plastic-sealed end cap according to an embodiment of the present invention;
FIG. 2 is a view showing the structure of the cover and the fixing portion of FIG. 1;
FIG. 3 is a side view of the cover and retainer of FIG. 1;
fig. 4 is a cross-sectional view of an electric machine according to an embodiment of the present invention.
Detailed Description
Reference will now be made in detail to the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.
Referring to fig. 1 to 3, an embodiment of the present invention provides a plastic package end cover, including a cover body 100 with a bearing chamber therein and a fixing portion 200 connected to the cover body 100; a reinforcing part 110 protruding outwards is arranged on one side of the cover body 100 away from the fixing part 200; a through hole 120 is formed in the center of the reinforcing part 110; the fixing portion 200 includes an insertion portion 210, and a connecting portion 220 connecting the insertion portion 210 and the cover body 100; the outer side of the embedding part 210 is provided with an upward convex sealing edge 211; the outer side of the cover body 100 is sleeved with a shock-absorbing rubber ring 130.
By arranging the cover bodies 100 with different heights, the plastic package end cover is adaptive to motors with different specifications, the injection molding cost is reduced, and the compatibility and the universality of the plastic package end cover are improved; by arranging the cover body 100 and the reinforcing part 110, the coaxiality of the cover body 100 and the through hole 120 is improved, and the running quality of the motor is ensured; the connection stability of the plastic package end cover and the motor is ensured and the reliability of the plastic package end cover is also improved through the embedded part 210 and the sealing edge 211; by arranging the damping rubber ring 130, noise generated between the cover body 100 and the motor due to vibration is avoided, and the quality of the motor is improved.
In another embodiment, the outer diameter of the connection portion 220 gradually decreases toward the cover body 100. This structure improves the strength of the connection part 220 and ensures the connection stability of the insertion part 210 and the cover body 100.
In another embodiment, the outer diameter of the cushion rubber 130 is smaller than the outer diameter of the insert portion 210. The structure facilitates the embedding of the embedded part 210 and the sealing edge 211 into the motor more stably, and improves the stability of the plastic packaging end cover.
In the present embodiment, the height of the cushion rubber 130 is smaller than that of the cover body 100. If the height of the damping rubber ring 130 is too high, the damping rubber ring 130 is exposed out of a plurality of positions without fixation after the damping rubber ring 130 is matched with the cover body 100, the outer circle of the part of the damping rubber ring 130, which exceeds the cover body 100, is reduced, the damping rubber ring 130 is wholly in a trapezoidal state, and the motor in the state can be separated from the cover body 100 due to long-term operation, so that potential safety hazards are generated.
In another embodiment, the outer side of the cushion rubber ring 130 is provided with a skid-proof block 131. Through setting up non-slip block 131, avoid taking place the condition that displacement and pine take off between shock attenuation rubber ring 130 and lid 100 in the motor operation process.
In another embodiment, the anti-slip blocks 131 are uniformly arranged on the outer side of the cushion rubber 130 around the central axis of the cushion rubber 130. This kind of structure guarantees the stability of being connected between lid 100 and the motor, makes the inner wall of motor bear lid 100 more steadily, avoids lid 100 to take place the condition that the pine takes place to take off.
In another embodiment, the cover 100 and the fixing portion 200 are made of galvanized steel. The galvanized steel sheet has high corrosion resistance and hardness, and the stability of the plastic package end cover is improved.
Referring to fig. 4, an embodiment of the present invention further provides a motor, including a housing 400, a bearing 500, a rotating shaft 600, and the plastic package end cover described above; a plastic package part 410 is arranged in the shell 400, and a plastic package end cover is inserted into the plastic package part 410 through the embedding part 210 and is fixedly connected with the shell 400; the bearing 500 is inserted into the cover 100, and the rotation shaft 600 passes through the through hole 120 to be connected to the bearing 500.
In another embodiment, a red vulcanized fiber board 510 is disposed between the cover body 100 and the bearing 500 for buffering. Through setting up red vulcanized fiber board 510, avoid lid 100 and shell 400 to take place hard friction, cause the damage of motor.
In another embodiment, a wave washer 520 is disposed between the red vulcanized fiber board 510 and the bearing 500. Through setting up wave washer 520, can effectively reduce the axial of lid 100 and move, carry out the pre-compaction to the bearing play of bearing 500 simultaneously, reduce the vibration and the noise of motor, promote the motor quality.
In another embodiment, the molding part 410 is made of BMC. The BMC material has excellent dimensional stability, heat resistance, and electrical properties, so that the mold 410 can firmly fix the insert part 210 inside the housing 400.
The working principle of the present invention will be further explained below.
In the production process, firstly, the plastic-sealed end cover of the cover body 100 with a proper height is selected according to the size requirements of the shell 400 and the motor stator. For example, under the condition that the load size is not changed, the small-power motor can use the injection molding stator with small specification by using the plastic cover with the larger height of the cover body 100, so that the volume of the plastic packaging part 410 is effectively reduced, and the injection molding cost is reduced. Sleeving a damping rubber ring 130 on the outer side of the cover body 100, then placing a plastic-sealed end cover in the shell 400, and sequentially installing a red vulcanized fiber board 510, a wave washer 520 and a bearing 500 in a bearing chamber of the cover body 100; next, an injection-molded stator is installed in the housing 400, and the embedding portion 210 and the sealing edge 211 are press-fitted into the plastic package portion 410 of the injection-molded stator, so that the plastic package end cap is fixedly connected with the injection-molded stator. Finally, the rotating shaft 600 is connected with the bearing 500 through the through hole 120, and the assembly of the motor is completed.
As can be seen from the above description, the plastic package end cover and the motor thereof of the present invention, by providing the plastic package end cover, the cover body 100 with a suitable height can reduce the volume of the plastic package portion 410 while ensuring the connection stability with the housing 400, thereby reducing the injection molding cost; by arranging the cover body 100 and the reinforcing part 110, the coaxiality of the cover body 100 and the through hole 120 is improved, and the running quality of the motor is ensured; the connection stability of the plastic package end cover and the motor is ensured and the reliability of the plastic package end cover is also improved through the embedded part 210 and the sealing edge 211; by arranging the red vulcanized fiber paper board 510 and the wave washer 520, the vibration and noise of the motor are effectively reduced, and the quality of the motor is improved.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the gist of the present invention within the knowledge range of those skilled in the art.
Claims (10)
1. A plastic package end cover is characterized by comprising a cover body with a bearing chamber arranged inside and a fixing part connected with the cover body; a reinforcing part protruding outwards is arranged on one side of the cover body away from the fixing part; a through hole is formed in the central position of the reinforcing part; the fixing part comprises an embedded part and a connecting part for connecting the embedded part and the cover body; the outer side of the embedding part is provided with an upward convex sealing edge; and a damping rubber ring is sleeved on the outer side of the cover body.
2. The plastic package end cap according to claim 1, wherein an outer diameter of the connecting portion gradually decreases toward the cap body.
3. The plastic package end cover according to claim 2, wherein an outer diameter of the shock absorbing rubber ring is smaller than an outer diameter of the embedding portion.
4. The plastic package end cover according to claim 3, wherein an anti-slip block is disposed outside the damping rubber ring.
5. The plastic package end cover according to claim 4, wherein the anti-slip blocks are uniformly disposed outside the cushion rubber ring around a central axis of the cushion rubber ring.
6. The plastic encapsulated end cap according to claim 1, wherein the cover body and the fixing portion are made of galvanized steel sheets.
7. An electric machine, characterized by comprising a housing, a bearing, a shaft and a plastic encapsulated end cap according to any one of claims 1 to 6; a plastic package part is arranged in the shell, and the plastic package end cover is inserted into the plastic package part through the embedding part and is fixedly connected with the shell; the bearing is embedded in the cover body, and the rotating shaft penetrates through the through hole to be connected with the bearing.
8. The electric machine of claim 7 wherein a cushioning sheet of red steel paper is disposed between said cover and said bearing.
9. An electric machine as claimed in claim 8, wherein a wave washer is provided between the vulcanized fiber board and the bearing.
10. The electric machine of claim 7, wherein the plastic encapsulation is made of BMC.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021829166.1U CN212909171U (en) | 2020-08-27 | 2020-08-27 | Plastic package end cover and motor thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021829166.1U CN212909171U (en) | 2020-08-27 | 2020-08-27 | Plastic package end cover and motor thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212909171U true CN212909171U (en) | 2021-04-06 |
Family
ID=75250921
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021829166.1U Active CN212909171U (en) | 2020-08-27 | 2020-08-27 | Plastic package end cover and motor thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212909171U (en) |
-
2020
- 2020-08-27 CN CN202021829166.1U patent/CN212909171U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 529000 No. 79 Kaiyuan Road, Tangxia Town, Pengjiang District, Jiangmen City, Guangdong Province (multiple photos of one site) Patentee after: JIANGMEN LT MOTOR Co.,Ltd. Country or region after: China Address before: 63 Xianghe Road, ChaoLian Industrial Park, Pengjiang district, Jiangmen City, Guangdong Province, 529100 Patentee before: JIANGMEN LT MOTOR Co.,Ltd. Country or region before: China |