CN211501081U - Electric machine - Google Patents
Electric machine Download PDFInfo
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- CN211501081U CN211501081U CN201921432222.5U CN201921432222U CN211501081U CN 211501081 U CN211501081 U CN 211501081U CN 201921432222 U CN201921432222 U CN 201921432222U CN 211501081 U CN211501081 U CN 211501081U
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- impeller
- motor
- air guide
- wind
- periphery
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- 238000007789 sealing Methods 0.000 claims abstract description 28
- 239000003292 glue Substances 0.000 claims 1
- 239000000463 material Substances 0.000 claims 1
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000001746 injection moulding Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
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Abstract
The utility model discloses a motor, include: a stator vane for directing a flow of gas, the stator vane comprising: an impeller disc; at least two blades are spirally arranged on the periphery of the impeller disc, and an air guide channel is limited between every two adjacent blades; the inner end of the blade is fixedly connected with the periphery of the impeller disc, the outer end of the blade is provided with a sealing part, and the sealing part is in interference fit with a shell/fan cover of the motor. The utility model discloses have and guarantee to decide impeller and hold together fan housing or casing and be interference fit's state, decide the easier assembly of impeller simultaneously, difficult card is dead or break, and is sealed effectual, solves the surge problem when traditional clearance fit, solves the beneficial effect of the assembly problem when interference fit again.
Description
Technical Field
The utility model relates to the technical field of motors. More specifically, the present invention relates to an electric machine.
Background
The fixed impeller of the high-speed brushless motor used by the existing dust collector is a plastic part, the mass production is realized in an injection molding mode, the rotating and matching relation between the fixed impeller and the fan cover or the machine shell is clearance fit or interference fit, when the rotating and matching relation is clearance fit, the clearance between the fixed impeller and the fan cover or the machine shell easily causes the problem that the motor has airflow backflow surge under the state of a small air inlet, when the rotating and matching relation is interference fit, the assembling difficulty is increased, and the interference extrusion easily causes the deformation of the blades or the damage of the blades. In view of the above, there is a need to develop a motor and a motor to solve the above problems.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists among the prior art, the utility model aims at providing a motor, it guarantees to decide the impeller and hold together fan housing or casing for interference fit's state, decides the impeller relatively easy assembly simultaneously, and difficult card is dead or break, and is sealed effectual, solves the surge problem when traditional clearance fit, solves the assembly problem when interference fit again.
To achieve these objects and other advantages in accordance with the purpose of the invention, there is provided an electric machine including: the motor includes a stator vane for directing the airflow, the stator vane comprising:
an impeller disc;
at least two blades are spirally arranged on the periphery of the impeller disc, and an air guide channel is limited between every two adjacent blades;
the inner end of the blade is fixedly connected with the periphery of the impeller disc, the outer end of the blade is provided with a sealing part, and the sealing part is in interference fit with a shell/fan cover of the motor.
Preferably, the sealing part is made of soft rubber.
Preferably, the method further comprises the following steps: the fixed impeller is arranged on the motor mounting frame, and the motor mounting frame and the fixed impeller form an air guide structure together;
wherein, the motor mounting bracket includes: the cross section of the installation disc is circular, and the support ribs are radially arranged on the periphery of the installation disc, at least two support ribs are arranged, and two adjacent support ribs are arranged at intervals to limit an air guide opening between the two support ribs.
Preferably, the air guide openings correspond to the air outlet ends of the air guide channels one to one.
Preferably, the motor further includes: a case having a hollow interior; a driving part which is arranged on the air guide structure; and a wind collecting cover clamped with one end of the shell.
Preferably, the motor mounting rack is fixedly connected to the inside of the casing, the inner end of the support rib is fixedly connected with the outer periphery of the mounting plate, the outer end of the support rib is fixedly connected with the inner periphery of the casing,
the outer end of the sealing part is jointed with the inner circumference of the machine shell and keeps elastic contact.
Preferably, the wind scooper includes: a downwardly curved scoop portion gradually curved as the radius is enlarged, and a skirt portion integrally joined to and vertically extending downward from the outer periphery of the scoop portion,
wherein, the inner periphery of skirt portion laminates and keeps elastic contact with the outer end of sealing portion mutually, and the air inlet has been seted up to wind-collecting portion top central zone.
Preferably, the inner diameter of the casing and the wind-collecting cover is smaller than the outer diameter of the fixed impeller.
The utility model discloses at least, include following beneficial effect: the utility model provides a motor, it guarantees to decide the impeller and holds together fan housing or casing for interference fit's state, decides the easier assembly of impeller simultaneously, and difficult card is dead or break, and is sealed effectual, solves the surge problem when traditional clearance fit, solves the assembly problem when interference fit again.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of a motor according to an embodiment of the present invention;
fig. 2 is an exploded view of an electric motor according to an embodiment of the present invention;
fig. 3 is a cross-sectional view of a motor according to an embodiment of the present invention;
fig. 4 is a schematic structural view of a fixed impeller according to an embodiment of the present invention;
FIG. 5 is a schematic view of another view angle of the fixed impeller according to an embodiment of the present invention
Fig. 6 is a schematic structural view of the housing and the motor mounting bracket according to an embodiment of the present invention
Fig. 7 is a sectional view of the wind scooping cover in an embodiment of the present invention.
Detailed Description
The foregoing and other objects, features, aspects and advantages of the present invention will become more apparent to those skilled in the art from the following detailed description, which, taken in conjunction with the annexed drawings, discloses a more detailed description of the present invention, which will enable those skilled in the art to make and use the present invention. In the drawings, the shape and size may be exaggerated for clarity, and the same reference numerals will be used throughout the drawings to designate the same or similar components. In the following description, terms such as center, thickness, height, length, front, back, rear, left, right, top, bottom, upper, lower, and the like are used based on the orientation or positional relationship shown in the drawings. In particular, "height" corresponds to the dimension from top to bottom, "width" corresponds to the dimension from left to right, and "depth" corresponds to the dimension from front to back. These relative terms are for convenience of description and are not generally intended to require a particular orientation. Terms concerning attachments, coupling and the like (e.g., "connected" and "attached") refer to a relationship wherein structures are secured or attached, either directly or indirectly, to one another through intervening structures, as well as both movable or rigid attachments, unless expressly described otherwise.
As an embodiment of the present invention, refer to fig. 1 to 7, the present invention provides a motor, which includes a fixed impeller 13 for guiding an air flow, wherein the fixed impeller 13 includes:
an impeller disk 131;
at least two blades 132 spirally arranged on the periphery of the impeller disc 131, and an air guide channel is limited between every two adjacent blades 132;
wherein, the inner end of the blade 132 is fixedly connected with the periphery of the impeller disc 131, the outer end of the blade 132 is formed with a sealing part 133, and the sealing part is in interference fit with the casing/fan cover of the motor.
Further, the sealing portion 133 is made of soft rubber, so that the fixed impeller is easy to assemble, is not easy to be locked or broken, and has a good sealing effect, and the fixed impeller 13 is formed by injection molding the impeller disc 131 and the blades 132 firstly and then injection molding the sealing portion 133 secondly.
Further, still include: the motor mounting frame 14 is fixedly arranged, the fixed impeller 13 is mounted on the motor mounting frame 14, and the motor mounting frame 14 and the fixed impeller 13 form an air guide structure together;
wherein, motor mounting bracket 14 includes: the cross section of the mounting disc 141 is circular, and the support ribs 142 are radially arranged on the periphery of the mounting disc 141, at least two support ribs 142 are arranged, and two adjacent support ribs 142 are arranged at intervals to define an air guide opening between the two support ribs 142. The air guide openings correspond to the air outlet ends of the air guide channels one to one. The external air is guided into the air guide opening through the air guide channel of the fixed impeller 13 and is smoothly and uniformly released into the motor through the air guide opening, so that the motor runs more stably.
As a preferred embodiment of the present invention, the top end of the mounting plate 141 protrudes with a positioning portion 1411 and the top end surface of the mounting plate 141 is provided with a first positioning hole 1412, the inner periphery of the impeller plate 131 is provided with a second positioning hole 1311, the bottom end of the impeller plate 131 is provided with a positioning column 1312, the impeller plate 131 is positioned at the top end of the mounting plate 141 through the first positioning hole 1412, the positioning column 1312, the positioning portion 1411 and the second positioning hole 1311, and the impeller plate 131 is further screwed with the mounting plate 141.
Further, the motor further includes: a case 11 having a hollow interior; a driving part which is arranged on the air guide structure; and a wind collecting cover 12 fastened to one end of the housing 11.
Further, the motor mounting bracket 14 is fixed inside the casing 11, the inner end of the support rib 142 is fixed to the outer circumference of the mounting plate 141, the outer end of the support rib 142 is fixed to the inner circumference of the casing 11, and the outer end of the sealing portion 133 is attached to the inner circumference of the casing 11 and maintains elastic contact. Meanwhile, the outer diameter of the fixed impeller 13 is larger than the inner diameter of the casing 11, so that the sealing part 133 and the casing 11 are in interference fit, no-gap sealing can be achieved, the surge problem is solved, and meanwhile, the sealing part 133 is made of soft rubber, so that assembly is facilitated.
Further, the wind scooper 12 includes: a funnel 121 which is gradually bent downward as the radius is enlarged, and a skirt 122, the skirt 122 integrally joins the funnel 121 at the outer circumference of the funnel 121 and extends vertically downward from the outer circumference of the funnel 121,
the inner periphery of the skirt portion 122 is attached to the outer end of the sealing portion 133 and elastically contacts the outer end, and the inner diameter of the wind scooping cover 12 is smaller than the outer diameter of the fixed impeller 13. Therefore, the sealing part 133 and the wind-gathering cover 12 are in interference fit, so that gapless sealing can be achieved, the surge problem is solved, and meanwhile, the sealing part 133 is made of soft rubber, so that assembly is facilitated.
Further, a first fastening portion 111 is disposed at the top of the housing 11, a second fastening portion 124 is disposed at the bottom end of the skirt portion 122, the second fastening portion 123 is matched with the first fastening portion, and the wind collecting cover 12 is fastened to the housing 11 through the first fastening portion 111 and the second fastening portion 124. The central region of the top end of the wind gathering part 121 is provided with an air inlet 123. The top end of the wind gathering part 121 is provided with an air inlet 123, and the wind gathering part 121 is gradually bent downwards due to the radius expansion, so that the driving part can conveniently absorb external air, and the external air can smoothly and uniformly enter the air guide channel and the air guide opening.
In summary, the driving portion guides the external air from the air inlet 123 at the top end of the wind-gathering cover 12, and the external air is released stably through the wind guiding structure, the fixed impeller 13 is in interference fit with the casing 11 and the wind-gathering cover 12, so that no-gap sealing can be achieved, the surge problem of the motor is solved, the motor operates stably, and meanwhile, the sealing portion 133 is made of soft rubber, so that the fixed impeller assembly 13 is convenient to assemble.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While embodiments of the invention have been disclosed above, it is not intended to be limited to the applications listed in the specification and the examples. It can be applicable to various and be fit for the utility model discloses a field completely. Additional modifications will readily occur to those skilled in the art. The invention is therefore not to be limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (8)
1. An electric machine, characterized in that the electric machine comprises a stationary impeller (13) for guiding an air flow, the stationary impeller (13) comprising:
an impeller disc (131);
at least two blades (132) which are spirally arranged on the periphery of the impeller disc (131), and an air guide channel is limited between every two adjacent blades (132);
the inner end of the blade (132) is fixedly connected with the periphery of the impeller disc (131), the outer end of the blade (132) is provided with a sealing part (133), and the sealing part is in interference fit with the shell/fan cover of the motor.
2. The motor according to claim 1, wherein the material of the sealing portion (133) is soft glue.
3. The electric machine of claim 1, further comprising: the motor mounting rack (14) is fixedly arranged, the fixed impeller (13) is mounted on the motor mounting rack (14), and the motor mounting rack (14) and the fixed impeller (13) form an air guide structure together;
wherein the motor mount (14) comprises: the air guide plate comprises a mounting plate (141) with a circular cross section and at least two support ribs (142) radially arranged on the periphery of the mounting plate (141), wherein the two adjacent support ribs (142) are arranged at intervals to define an air guide opening between the two support ribs (142).
4. The motor of claim 3, wherein the air guide openings correspond to the air outlet ends of the air guide channels one to one.
5. The electric machine of claim 3, further comprising: a case (11) having a hollow interior; a driving part mounted on the air guide structure; and the wind collecting cover (12) is clamped with one end of the shell (11).
6. The motor of claim 3, wherein the motor mounting bracket (14) is fixedly connected to the inside of the housing (11), and the inner ends of the support ribs (142) are fixedly connected to the outer circumference of the mounting plate (141), and the outer ends of the support ribs (142) are fixedly connected to the inner circumference of the housing (11),
the outer end of the sealing part (133) is attached to the inner circumference of the casing (11) and keeps elastic contact.
7. An electric machine as claimed in claim 5, characterized in that said wind-scooping cover (12) comprises: a wind scooping portion (121) which is gradually bent downward as the radius is enlarged, and a skirt portion (122), the skirt portion (122) integrally joining the wind scooping portion (121) at an outer periphery of the wind scooping portion (121) and vertically extending downward from the outer periphery of the wind scooping portion (121),
the inner periphery of the skirt portion (122) is attached to the outer end of the sealing portion (133) and keeps elastic contact with the outer end of the sealing portion, and an air inlet (123) is formed in the central area of the top end of the air collecting portion (121).
8. The machine according to claim 7, characterized in that the inner diameter of the casing (11) and the wind-scooping cover (12) is smaller than the outer diameter of the stationary impeller (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921432222.5U CN211501081U (en) | 2019-08-30 | 2019-08-30 | Electric machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921432222.5U CN211501081U (en) | 2019-08-30 | 2019-08-30 | Electric machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211501081U true CN211501081U (en) | 2020-09-15 |
Family
ID=72394962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921432222.5U Active CN211501081U (en) | 2019-08-30 | 2019-08-30 | Electric machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211501081U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529431A (en) * | 2019-08-30 | 2019-12-03 | 追创科技(苏州)有限公司 | A kind of motor |
-
2019
- 2019-08-30 CN CN201921432222.5U patent/CN211501081U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110529431A (en) * | 2019-08-30 | 2019-12-03 | 追创科技(苏州)有限公司 | A kind of motor |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 215000 E3, building 16, No. 2288, Wuzhong Avenue, Yuexi, Wuzhong District, Suzhou City, Jiangsu Province Patentee after: Dreame technology (Suzhou) Co.,Ltd. Address before: 215000 E3, building 16, No. 2288, Wuzhong Avenue, Yuexi, Wuzhong District, Suzhou City, Jiangsu Province Patentee before: ZHUICHUANG TECHNOLOGY (SUZHOU) Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |