CN2705639Y - Centrifugal water discharge pump - Google Patents
Centrifugal water discharge pump Download PDFInfo
- Publication number
- CN2705639Y CN2705639Y CN 200420047012 CN200420047012U CN2705639Y CN 2705639 Y CN2705639 Y CN 2705639Y CN 200420047012 CN200420047012 CN 200420047012 CN 200420047012 U CN200420047012 U CN 200420047012U CN 2705639 Y CN2705639 Y CN 2705639Y
- Authority
- CN
- China
- Prior art keywords
- rotor
- rotating shaft
- fan blade
- axle sleeve
- pump
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title 1
- 241001247986 Calotropis procera Species 0.000 claims description 5
- 230000005389 magnetism Effects 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 230000001133 acceleration Effects 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 abstract description 4
- 230000007246 mechanism Effects 0.000 abstract description 3
- 230000001737 promoting effect Effects 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 3
- 239000002360 explosive Substances 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Images
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a kind of centrifugal draining pump, comprise the pump housing, pump cover, p-m rotor, rotating shaft, fan blade, p-m rotor is placed in the pump housing, fan blade is installed the fan blade cavity that surrounds in pump cover, rotating shaft extends to the fan blade cavity from the pump housing, the fixedly connected fan blade of shaft head, and an axle sleeve is fixedly connected on rotating shaft, p-m rotor is socketed on outside the rotating shaft, and p-m rotor inwall and axle sleeve outer wall are provided with the power screw structure.Rotor of the present utility model, rotating shaft and impeller are not simultaneously, promptly after rotor startup rotates to several angle from static acceleration, just rotate together by screw thread drive mechanism drive rotating shaft, fan blade, the rotation of rotating shaft and fan blade slightly is later than the startup of rotor, help rotor start at zero resistance, from promoting rotating shaft again after static acceleration arrives fair speed and fan blade rotates together.Therefore, the utility model can drop to the resistance of electric motor starting minimum, has reduced load, has reduced the output power of motor.
Description
Technical field
The utility model relates to a kind of centrifugal draining pump, relates in particular to the centrifugal draining pump of a kind of washing machine or use in dishwasher.
Background technique
The existing centrifugal draining pump that is installed on washing machine or the dishwasher often adopts asynchronous motor, and rotating speed is low during startup, moment is big, can solve the problem of starting torque, but asynchronous motor cost height, efficient are low.If the employing permagnetic synchronous motor because its starting torque is very little, need very big starting power, if starting power is little, when starting torque is not enough to overcome load, causes motor rotation blockage easily.
Summary of the invention
The purpose of this utility model is to provide a kind of centrifugal draining pump of novel reduction electric motor starting resistance.
Centrifugal draining pump of the present utility model, comprise the pump housing, pump cover, p-m rotor, rotating shaft, fan blade, p-m rotor is placed in the pump housing, fan blade is installed the fan blade cavity that surrounds in pump cover, rotating shaft extends to the fan blade cavity from the pump housing, the fixedly connected fan blade of shaft head, and an axle sleeve is fixedly connected on rotating shaft, p-m rotor is socketed on outside the rotating shaft, and p-m rotor inwall and axle sleeve outer wall are provided with the power screw structure.
The purpose of reduction rotor startup resistance of the present utility model does not start simultaneously by rotor, rotating shaft and impeller and to realize.Fan blade and axle sleeve are fixedly connected in the rotating shaft, and rotor is socketed on rotating shaft, and rotor inner wall offers one section worm structure that matches with the axle sleeve outer wall.After rotor startup rotated to several angle from static acceleration, screw thread one end of rotor inner wall and the screw thread terminal butt of axle sleeve rotated together thereby drive axle sleeve, rotating shaft, fan blade, and therefore, the rotation of rotating shaft and fan blade slightly is later than the startup of rotor.The time that rotating shaft and fan blade hysteresis start is depended on the length of screw thread, and reach increases, and then the distance that relatively rotates of rotor and axle sleeve increases, and rotor rotation just can drive the rotation of rotating shaft and fan blade than wide-angle, after the long period.Rotation angle increases, help rotor start at zero resistance, from promoting rotating shaft again after static acceleration arrives fair speed and fan blade rotates together.Therefore, the utility model can drop to the resistance of electric motor starting minimum, has reduced load, has reduced the output power of motor.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the explosive view that the utility model adopts the single start thread drive mechanism.
Fig. 3 is the explosive view that the utility model adopts two screw thread drive mechanisms.
Fig. 4 is the scheme of installation of the p-m rotor of single start thread structure.
Fig. 5 is the scheme of installation of the p-m rotor of two worm structures.
Embodiment
Extremely shown in Figure 5 as Fig. 1, the 1st, fan blade cavity, the 2nd, fan blade, the 3rd, pump cover, the 4th, axle sleeve, the 5th, sealing rubber ring, the 6th, the pump housing, the 7th, pad, the 8th, plastic bearing lid, the 9th, rubber bush bearing lid, the 10th, bearing, the 11st, p-m rotor, the 12nd, permanent magnetism cavity, the 13rd, rotating shaft, the 14th, bearing support.
The pump housing 6 as shown in Figure 1, the plastic bearing lid 8 by cooperatively interacting, rubber bush bearing lid 9 and bearing 10 form the permanent magnetism cavity 12 of waterproof sealings.Pump cover 3 surrounds fan blade cavity 1.Rotating shaft 13 is passed plastic bearing lid 8, rubber bush bearing lid 9 and bearing 10 and is extended to the fan blade cavity 1 from permanent magnetism cavity 12.Fan blade 2 is in the fan blade cavity 1, and is fixedly connected on rotating shaft 13.P-m rotor 11, rotating shaft 13, axle sleeve 4, bearing 10, plastic bearing lid 8, rubber bush bearing lid 9, fan blade 2 are coaxial installation.
The screw thread form of present embodiment Intermediate shaft sleeve 4 outer walls and rotor 11 inwalls can be trapezoidal, rectangle, triangle, zigzag fashion and circle, can be as 2, single start thread shown in Figure 4 also can be as Fig. 3, two worm structures shown in Figure 5.
Claims (5)
1, a kind of centrifugal draining pump, comprise the pump housing (6), pump cover (3), p-m rotor (11), rotating shaft (13), fan blade (2), p-m rotor (11) is placed in the pump housing (6), fan blade (2) is installed the fan blade cavity (1) that surrounds in pump cover (3), rotating shaft (13) extends to fan blade cavity (1) from the pump housing (6), it is characterized in that the fixedly connected fan blade of rotating shaft (13) head (2), one axle sleeve (4) is fixedly connected on rotating shaft (13), p-m rotor (11) is socketed on outside the rotating shaft (13), and p-m rotor (11) inwall and axle sleeve (4) outer wall are provided with the power screw structure.
2, centrifugal draining pump according to claim 1, it is characterized in that the described pump housing (6) forms waterproof sealing permanent magnetism cavity (12) by plastic bearing lid (8), rubber bush bearing lid (9) and bearing (10) sealing that matches, rotor (11) is placed in the permanent magnetism cavity (12).
3, centrifugal draining pump according to claim 1 is characterized in that described p-m rotor (11) inwall and described axle sleeve (4) outer wall offer one section screw thread that matches, and form described power screw structure.
4, centrifugal draining pump according to claim 3 is characterized in that described screw thread is single start thread or two worm structure or many worm structures.
5,, it is characterized in that described thread segment is shaped as trapezoidal, rectangle, triangle, zigzag fashion or semicircle etc. according to claim 3 or 4 described centrifugal draining pumps.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420047012 CN2705639Y (en) | 2004-06-16 | 2004-06-16 | Centrifugal water discharge pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420047012 CN2705639Y (en) | 2004-06-16 | 2004-06-16 | Centrifugal water discharge pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2705639Y true CN2705639Y (en) | 2005-06-22 |
Family
ID=34851260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420047012 Expired - Lifetime CN2705639Y (en) | 2004-06-16 | 2004-06-16 | Centrifugal water discharge pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2705639Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018707A1 (en) * | 2007-08-08 | 2009-02-12 | Jiangmen Hanyu Electrical Co., Ltd. | A permanent magnet synchronous motor for a discharge pump |
| CN102251962A (en) * | 2011-08-18 | 2011-11-23 | 肖义堃 | Blade pump |
-
2004
- 2004-06-16 CN CN 200420047012 patent/CN2705639Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009018707A1 (en) * | 2007-08-08 | 2009-02-12 | Jiangmen Hanyu Electrical Co., Ltd. | A permanent magnet synchronous motor for a discharge pump |
| CN102251962A (en) * | 2011-08-18 | 2011-11-23 | 肖义堃 | Blade pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGMEN IDEAR HANYU ELECTRICAL JOINT-STOCK CO., L Free format text: FORMER NAME: JIANGMEN HANYU ELECTRIC APPLIANCE CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee after: Jiangmen Idear-hanyu Electrical Joint-stock Co., Ltd. Address before: 529000, Dongfeng Industrial Zone, ring city, Guangdong, Jiangmen 1 Patentee before: Jiangmen Hanyu Electric Appliance Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140616 Granted publication date: 20050622 |