CN220234366U - Multi-speed fan motor with return air structure - Google Patents
Multi-speed fan motor with return air structure Download PDFInfo
- Publication number
- CN220234366U CN220234366U CN202321821263.XU CN202321821263U CN220234366U CN 220234366 U CN220234366 U CN 220234366U CN 202321821263 U CN202321821263 U CN 202321821263U CN 220234366 U CN220234366 U CN 220234366U
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- return air
- air
- arc
- fan motor
- shaped
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- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 4
- 230000017525 heat dissipation Effects 0.000 description 4
- 238000009423 ventilation Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 239000012535 impurity Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000000428 dust Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 210000003205 muscle Anatomy 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
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- Motor Or Generator Cooling System (AREA)
Abstract
The utility model discloses a multi-speed fan motor with an air return structure, which comprises an outer shell, a rear cover and an end cover, wherein the end cover is arranged at the front end opening of the outer shell, the rear cover is arranged at the rear end of the outer shell, the bottom surface of the rear cover is in a closed state, a fan-shaped part is arranged at the edge position of the rear cover, a part of the fan-shaped part extends out of the rear cover, an air return groove is arranged on the fan-shaped part, the air return groove is communicated with the inside of the outer shell, a filter screen is arranged on the opening of the air return groove, which is positioned outside the outer shell, arc-shaped air suction holes are uniformly distributed in the circumference are arranged on the end cover, the arc-shaped air suction holes are symmetrically arranged in pairs, the opening of the air return groove faces the arc-shaped air suction holes, and the air return groove is communicated with the arc-shaped air suction holes. Therefore, the motor has waterproof and dustproof effects, and the structure is more reasonable and reliable.
Description
Technical Field
The utility model relates to the field of motors, in particular to a multi-speed fan motor with an air return structure.
Background
The multi-speed fan motor is widely used for automobiles and is used for adjusting wind speed, larger heat is generated when the multi-speed fan motor runs and heat dissipation is continued, the existing multi-speed fan motor is arranged at an air outlet, the space is narrow, the design and installation structure of the multi-speed fan motor is extremely easy to be corroded by impurity dust or liquid, the motor is extremely easy to be damaged due to internal short circuit, the main reason is that a return air Kong Zhimian ventilation window (the ventilation window is arranged on the installation position of the fan motor) is arranged on the end face of a rear cover of the motor, so that the motor is extremely easy to be subjected to liquid entering the motor, the return air hole is used for heat dissipation, and the return air hole is also extremely easy to absorb some impurities in the air suction process, so that the ventilation design in the motor shell is unreasonable and the heat dissipation performance is poor.
Disclosure of Invention
In order to solve the problems, the utility model aims to provide a multi-speed fan motor with a waterproof and dustproof effect and an air return structure, so that the structure is more reasonable and reliable.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a take multispeed fan motor of return air structure, includes shell body, back lid and end cover, and the end cover is installed to the front end opening of shell body, and the back lid is installed to the rear end of shell body, and the bottom surface of back lid is the closed condition, and the edge position of back lid is equipped with fan-shaped portion, and the partly structure of this fan-shaped portion is covered after extending, and this fan-shaped portion is equipped with the return air recess, and the return air recess communicates with each other with the inside of shell body, is provided with the filter screen on the outside opening of shell body of return air recess position be equipped with the arc air-extracting hole of circumference equipartition on the end cover, this arc air-extracting hole pairwise symmetry sets up, the opening of return air recess is towards arc air-extracting hole, the return air recess communicates with each other with this arc air-extracting hole.
The shell is characterized in that the peripheral wall of the shell is also connected with a mounting plate, the section of the mounting plate is L-shaped, and bolts are arranged on the mounting plate.
The rear cover is provided with annular convex ribs, the convex ribs are also connected with reinforcing ribs, and the reinforcing ribs are distributed in radial rays.
The end cover is connected with a locating plate, and a limiting shaft hole is formed in the locating plate.
According to the structure, after the wind wheel is arranged on the output shaft of the multi-speed fan motor, the wind wheel is driven to rotate to enable the arc-shaped air suction hole to suction air, and the air return groove is used for returning air, so that the air speed circulation is carried out in the outer shell, and the motor is cooled.
The utility model is further described below with reference to the drawings and detailed description.
Drawings
FIG. 1 is a left side view of an embodiment of the present utility model;
FIG. 2 is a side view of an embodiment of the present utility model;
fig. 3 is a right side view of an embodiment of the present utility model.
Detailed Description
The present utility model is described in detail below by way of examples only for further explanation of the present utility model and is not to be construed as limiting the scope of the present utility model.
As shown in fig. 1-3, this embodiment discloses a multi-speed fan motor with a return air structure, which comprises an outer casing 1, a rear cover 2 and an end cover 3, wherein the end cover 3 is installed at the front end opening of the outer casing 1, the rear cover 2 is installed at the rear end of the outer casing 1, the bottom surface of the rear cover 2 is in a closed state, a fan-shaped part 4 is arranged at the edge position of the rear cover 2, a part of the structure of the fan-shaped part 4 extends out from the rear cover 2, the fan-shaped part 4 is provided with a return air groove 5, the return air groove 5 is communicated with the interior of the outer casing 1, the opening of the return air groove 5, which is positioned at the exterior of the outer casing 1, is provided with a filter screen 10, arc-shaped air suction holes 31 which are uniformly distributed in circumference are symmetrically arranged in pairs, the opening of the return air groove 5 faces the arc-shaped air suction holes 31, and the return air groove 5 is communicated with the arc-shaped air suction holes 31.
The peripheral wall of the outer shell 1 is also connected with three mounting plates 6, the cross section of the mounting plates 6 is L-shaped, and bolts are arranged on the mounting plates 6. The three mounting plates 6 can enable the mounting of the outer shell 1 to be more reliable, stable and reliable, the motor is not easy to shake during operation, meanwhile, the mounting plates 6 are made of metal, the heat conduction function can be effectively achieved, and a certain heat dissipation effect is achieved.
The rear cover 2 is provided with annular convex ribs 7, the convex ribs 7 are also connected with reinforcing ribs 8, and the reinforcing ribs 8 are distributed in radial. Through protruding muscle 7 and strengthening rib 8 can effectively increase the thickness of back lid 2, effectively improve the supportability at back lid edge for the buckle piece and the shell body 1 snap fit back of back lid 2 avris are more firm.
The end cover 3 is connected with a positioning plate 9, the positioning plate 9 is provided with a limiting shaft hole 91, and the end part of the rotating shaft on the motor can penetrate out of the limiting shaft hole, so that the rotating shaft can rotate more stably.
By adopting the technical scheme, after the wind wheel is installed on the output shaft of the multi-speed fan motor, the wind wheel is driven to rotate, the arc-shaped wind suction hole 31 can be used for exhausting air, and air is returned through the air return groove 5, so that air speed circulation is carried out in the outer shell 1, and the motor is cooled, and as the filter screen is arranged on the air return groove 5, the air return groove 5 faces the arc-shaped wind suction hole 31 and the bottom surface of the rear cover 2 is in a closed state, so that the air return groove 5 does not need a ventilation window on a straight surface installation position, and the motor has a waterproof and dustproof effect, so that the structure is more reasonable and reliable.
Claims (4)
1. The utility model provides a take multispeed fan motor of back wind structure, includes shell body, back lid and end cover, and the front end opening buckle of shell body installs the end cover, and the back lid is installed to the back end buckle of shell body, its characterized in that: the bottom surface of back lid is the confined state, and the edge position of back lid is equipped with fan-shaped portion, and the partly structure of this fan-shaped portion is followed and is covered and extend, and this fan-shaped portion is equipped with the return air recess, and the return air recess communicates with each other with the inside of shell body, is provided with the filter screen on the outside opening of return air recess in shell body be equipped with the arc air-extracting hole of circumference equipartition on the end cover, the two liang symmetry sets up of this arc air-extracting hole, the opening orientation arc air-extracting hole of return air recess, the return air recess communicates with each other with this arc air-extracting hole.
2. The multi-speed fan motor with return air structure of claim 1, wherein: the shell is characterized in that the peripheral wall of the shell is also connected with a mounting plate, the section of the mounting plate is L-shaped, and bolts are arranged on the mounting plate.
3. The multi-speed fan motor with return air structure of claim 1, wherein: the rear cover is provided with annular convex ribs, the convex ribs are also connected with reinforcing ribs, and the reinforcing ribs are distributed in radial rays.
4. The multi-speed fan motor with return air structure of claim 1, wherein: the end cover is connected with a locating plate, and a limiting shaft hole is formed in the locating plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321821263.XU CN220234366U (en) | 2023-07-12 | 2023-07-12 | Multi-speed fan motor with return air structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321821263.XU CN220234366U (en) | 2023-07-12 | 2023-07-12 | Multi-speed fan motor with return air structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220234366U true CN220234366U (en) | 2023-12-22 |
Family
ID=89199189
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321821263.XU Active CN220234366U (en) | 2023-07-12 | 2023-07-12 | Multi-speed fan motor with return air structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220234366U (en) |
-
2023
- 2023-07-12 CN CN202321821263.XU patent/CN220234366U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |