CN212258609U - Motor rear cover - Google Patents
Motor rear cover Download PDFInfo
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- CN212258609U CN212258609U CN202020498158.7U CN202020498158U CN212258609U CN 212258609 U CN212258609 U CN 212258609U CN 202020498158 U CN202020498158 U CN 202020498158U CN 212258609 U CN212258609 U CN 212258609U
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- rear cover
- motor
- annular body
- bush
- motor rear
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Abstract
The invention discloses a motor rear cover, which comprises a rear cover, wherein the rear cover is in a shape of a circular arc quadrilateral, and is characterized in that: be equipped with the bush in the back shroud, the bush includes annular body, and the front end of body sets up the stationary vane who matches with the back shroud shape, and annular body is the structure of toper ring. The invention relates to a motor rear cover which has the direct effect that when a motor works, the generated air flow achieves the effects of reducing noise and temperature through the action of a lining, thereby improving the efficiency of the motor. The direct effect lies in that the structural design of bush is simple, and the dismouting is very convenient. The indirect effect lies in that the motor rear cover of the bush is adopted, so that the working efficiency of the motor is improved, and the energy consumption is reduced, thereby reducing the electric energy consumed by the motor and promoting the indirect effect of energy conservation and emission reduction. Its indirect effect is also to reduce noise pollution and avoid environmental pollution.
Description
Technical Field
The invention relates to the technical field of motors, in particular to a motor rear cover.
Background
At present, chinese patent application No. CN201720445589.5 discloses a motor rear cover, which includes an annular fixing member and a heat dissipating member connected to the fixing member, the heat dissipating member includes a reinforcing plate and heat dissipating holes arranged around the reinforcing plate, the fixing member is connected to the heat dissipating member through an annular reinforcing inclined surface, a first circular angle ring is arranged between the reinforcing inclined surface and the heat dissipating member, and a second circular angle ring is arranged between the reinforcing inclined surface and the fixing member. The utility model has the advantages of good radiating effect has better intensity simultaneously again.
The Chinese patent with the application number of CN201320136135.1 discloses a motor rear cover structure, which comprises a casing, a rear cover, a connecting plate and a handle, wherein the rear cover is arranged at the rear end of the casing, a clamping device is arranged on one side of the casing, a fixed block is arranged on the other side of the casing corresponding to the clamping device, the connecting plate is arranged at the upper end of the casing on the same side with the fixed block, the connecting plate at the upper end of the rear cover is connected with the fixed block on the casing through a fixed screw in a matching way, a radiating fin is arranged on the rear cover, a buckle plate tightly matched with the clamping device is arranged at the upper end of the rear cover, and the handle is arranged; the utility model discloses simple structure, the preparation is convenient, and the radiating effect is good, has effectively increased motor life, and easy dismounting makes things convenient for clearance and maintenance in the daily life more, has improved work efficiency.
The negative pressure device comprises a motor assembly, a motor front cover and a motor rear cover, wherein a motor fixing support is installed in the motor rear cover, a gap is reserved between the motor fixing support and the inner wall of the motor rear cover, the motor assembly is installed in the motor fixing support, gaps are reserved between the inner walls of the motor assembly and the motor fixing support and between the upper end and the lower end of the motor assembly and the inner wall of the motor fixing support, the motor front cover is installed at the upper end of the motor rear cover, a plurality of groups of first air outlet holes which are circumferentially distributed are arranged on the side wall of the motor fixing support, a plurality of groups of second air outlet holes which are circumferentially distributed are arranged on the side wall of the motor rear cover, and the second air outlet holes and the first air outlet holes are arranged in a staggered mode; when the motor rear cover is in operation, wind can surround in a cavity between the motor fixing support and the motor rear cover, namely, the wind output from the negative pressure device flows out after bypassing in the cavity formed by the motor fixing support and the motor rear cover, so that the impact force of the wind is weakened, and the purpose of reducing noise is achieved.
As can be seen from the above prior art document, the design direction of the motor rear cover is as follows: how to reduce noise and dissipate heat.
The problem exists in the field of motors, especially in three-phase motors and special motors for multi-stage pumps, people are always looking for breakthrough openings, but effective progress is not achieved, so that effective breakthrough of the problem of how to reduce noise and dissipate heat has huge challenges and contributions to the industry.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the motor rear cover which has the advantages of reducing noise and temperature so as to improve the working efficiency of the motor.
The utility model provides a motor rear cover, includes the rear cover, the rear cover is circular arc quadrilateral, characterized by: be equipped with the bush in the back shroud, the bush includes annular body, and the front end of body sets up the stationary vane who matches with the back shroud shape, and annular body is the structure of toper ring.
Through the technical scheme, the method can be further set as follows: the thickness of the annular body is 1.6-2.4 mm.
Through the technical scheme, the method can be further set as follows: the height of the annular body is 40-84 mm.
Through the technical scheme, the method can be further set as follows: the maximum diameter of the annular body is 110-246 mm.
Through the technical scheme, the method can be further set as follows: the annular body is a conical ring with a conical inclination angle of 12-22 degrees.
Through the technical scheme, the method can be further set as follows: the outer side of the annular body is uniformly provided with reinforcing ribs.
Through the technical scheme, the method can be further set as follows: a gap is reserved between the annular body and the rear cover.
The invention has the following advantages:
the invention relates to a motor rear cover which has the direct effect that when a motor works, the generated air flow achieves the effects of reducing noise and temperature through the action of a lining, thereby improving the efficiency of the motor.
The invention relates to a motor rear cover, which has the direct effects that the structure design of a bushing is simple, and the disassembly and the assembly are very convenient.
The invention discloses a motor rear cover, which has the indirect effects that the motor rear cover adopting a bush improves the working efficiency of a motor and reduces energy consumption, so that the electric energy consumed by the motor is reduced, and the indirect effects of energy conservation and emission reduction are promoted.
The invention relates to a motor rear cover, which has the indirect effects of reducing noise pollution and avoiding environmental pollution.
Drawings
FIG. 1 is an exploded view of an embodiment;
fig. 2 is an exploded view of the embodiment.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1.
The utility model provides a motor rear cover, includes rear cover 1, rear cover 1 is circular arc quadrilateral, characterized by: be equipped with bush 2 in the back shroud 1, bush 2 includes annular body 3, and the front end of body 3 sets up the stationary vane 4 that matches with back shroud 1 shape, and annular body 3 is the structure of toper ring.
The thickness of the annular body 3 is 1.6-2.4 mm.
The height of the annular body 3 is 40-84 mm.
The maximum diameter of the annular body 3 is 110-.
The annular body 3 is a conical ring with a conical inclination angle of 12-22 degrees.
The outer side of the annular body 3 is uniformly provided with reinforcing ribs 5.
A gap is left between the annular body 3 and the rear cover 1.
Example 2.
The utility model provides a motor rear cover 1, includes rear cover 1, and rear cover 1 is circular arc quadrilateral, characterized by: be equipped with bush 2 in the back shroud 1, the bush includes annular body 3, and the front end of body 3 sets up the stationary vane 4 that matches with back shroud 1 shape, and annular body 3 is the structure of conical ring.
The thickness of the annular body 3 is 1.8-2.2 mm.
The height of the annular body 3 is 42.1-67.2 mm.
The maximum diameter of the annular body 3 is 116.2-181.2 mm.
The annular body 3 is a conical ring with a conical inclination angle of 18-20 degrees.
The outer side of the annular body 3 is uniformly provided with reinforcing ribs 5.
A gap is reserved between the annular body and the rear cover.
Example 3.
The utility model provides a motor rear cover 1, includes rear cover 1, and rear cover 1 is circular arc quadrilateral, characterized by: be equipped with bush 2 in the back shroud 1, the bush includes annular body 3, and the front end of body 3 sets up the stationary vane 4 that matches with back shroud 1 shape, and annular body 3 is the structure of conical ring.
The thickness of the annular body 3 is 2.2 mm.
The height of the annular body 3 is 66.6 or 81.2 mm.
The maximum diameter of the annular body 3 is 213.6 or 244.8 mm.
The annular body 3 is a conical ring with a cone inclination angle of 20 or 16 degrees.
The outer side of the annular body 3 is uniformly provided with reinforcing ribs 5.
A gap is left between the annular body 3 and the rear cover.
The following are experimental control tables:
wherein the insert is a bushing 2
With inserts
| Model number | Thickness of insert | Taper E of insert | Maximum diameter F | Height H | Clearance G with fan blade | Temperature rise | Noise (F) |
| 63 | 1.8～2.2 | 18 | 116.2 | 42.1 | 5～8 | 52.3 | 67 |
| 71 | 1.8～2.2 | 14 | 129.4 | 43.7 | 5～8 | 45.2 | 67.5 |
| 80 | 1.8～2.2 | 14 | 140.8 | 54.7 | 5～8 | 42.1 | 68.3 |
| 90 | 1.8～2.2 | 10 | 160.3 | 61.4 | 2～3 | 52.3 | 70.5 |
| 100 | 1.8～2.2 | 20 | 181.2 | 67.2 | 10～12 | 54.9 | 69.4 |
| 112 | 2.2 | 20 | 213.6 | 66.6 | 12～15 | 53.1 | 73 |
| 132 | 2.2 | 16 | 244.8 | 81.2 | 12～15 | 67.9 | 79.1 |
Size unit: mm, taper unit: degree, temperature rise unit: k, noise: dB (A)
Non-insert
| Model number | Temperature rise | Noise (F) | |||||
| 63 | 54 | 69.8 | |||||
| 71 | 48.6 | 69.3 | |||||
| 80 | 45 | 70.3 | |||||
| 90 | 55 | 73.6 | |||||
| 100 | 57.4 | 72.8 | |||||
| 112 | 56.8 | 75 | |||||
| 132 | 68.5 | 80.1 |
The above description is intended to be illustrative of the present invention and not to limit the scope of the invention, which is defined by the claims appended hereto.
Claims (7)
1. The utility model provides a motor rear cover, includes the rear cover, the rear cover is circular arc quadrilateral, characterized by: be equipped with the bush in the back shroud, the bush includes annular body, and the front end of body sets up the stationary vane who matches with the back shroud shape, and annular body is the structure of toper ring.
2. The motor rear cover of claim 1, wherein: the thickness of the annular body is 1.6-2.4 mm.
3. A motor rear cover according to claim 2, wherein: the height of the annular body is 40-84 mm.
4. A motor rear cover according to claim 3, wherein: the maximum diameter of the annular body is 110-246 mm.
5. The motor rear cover according to claim 4, wherein: the annular body is a conical ring with a conical inclination angle of 12-22 degrees.
6. An electric machine back cover according to any one of claims 1 to 5, wherein: the outer side of the annular body is uniformly provided with reinforcing ribs.
7. An electric machine back cover according to any one of claims 1 to 5, wherein: a gap is reserved between the annular body and the rear cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020498158.7U CN212258609U (en) | 2020-04-07 | 2020-04-07 | Motor rear cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020498158.7U CN212258609U (en) | 2020-04-07 | 2020-04-07 | Motor rear cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212258609U true CN212258609U (en) | 2020-12-29 |
Family
ID=73984246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020498158.7U Active CN212258609U (en) | 2020-04-07 | 2020-04-07 | Motor rear cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212258609U (en) |
-
2020
- 2020-04-07 CN CN202020498158.7U patent/CN212258609U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 317000 south of Hetao Road, Dayang Street Economic Development Zone, Linhai City, Taizhou City, Zhejiang Province Patentee after: ZHEJIANG RUNKE MOTOR Co.,Ltd. Address before: 317000 south of Hetao Road, Dayang Street Economic Development Zone, Linhai City, Taizhou City, Zhejiang Province Patentee before: Zhejiang Rongke Electric Co., Ltd |