CN2742195Y - Synchronous permanent magnet water drainage machine - Google Patents
Synchronous permanent magnet water drainage machine Download PDFInfo
- Publication number
- CN2742195Y CN2742195Y CN 200420072289 CN200420072289U CN2742195Y CN 2742195 Y CN2742195 Y CN 2742195Y CN 200420072289 CN200420072289 CN 200420072289 CN 200420072289 U CN200420072289 U CN 200420072289U CN 2742195 Y CN2742195 Y CN 2742195Y
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- pump case
- rotor
- rotating shaft
- synchronous permanent
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- Expired - Lifetime
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Abstract
The utility model relates to a synchronous permanent magnet water drainage machine used for the drainage system of the electric appliance, such as the laundry machine, the dish-washing machine, etc., and used for some small-sized water circulating systems. The utility model comprises a rotor assembly A, a stator assembly B, an upper pump case (6), and a lower pump case (7), wherein, the upper pump case (6) and the lower pump case (7) form a sealing type cavity Q in a surrounding mode; the rotor assembly A comprises a permanent magnet rotor (1), a position sleeve (4), a blade wheel (5), and a rotating axis (15); both ends of the rotating axis (15) support on the lower pump case (7); the position sleeve (4) is sheathed on the rotating axis (15), and the sealing type cavity Q is divided into two cavities Q1 and Q2; the permanent magnet rotor (1) and the blade wheel (5) are respectively sheathed on both ends of the rotating axis (15), and the permanent magnet rotor (1) and the blade wheel (5) are respectively positioned in the cavities Q1 and Q2; the stator assembly B is arranged on the side of the rotor assembly A, and fixedly arranged on the lower pump case (7). The utility model is small in starting load, easy in starting, small in vibration and undesired sound in the starting process, simple in structure, easy in manufacturing, and lower in cost.
Description
1, technical field:
The utility model is a kind of drainage system of electrical equipment such as washing machine, dishwasher and synchronous permanent-magnet draining pump of some small-sized water circulation systems of being used for, and belongs to the innovative technology of synchronous permanent-magnet draining pump.
2, background technique:
Adopt of the p-m rotor of existing synchronous permanent-magnet draining pump makes permanent magnetic ring 23 and motor shaft 15 pass through capsulation material 24 plastic packagings structure together more, as shown in Figure 1, the structure of its rotor assembly as shown in Figure 2, include p-m rotor 1, gear spare 3, impeller 5, dividing plate 17, outer bearing 18, impeller sealing ring 19, impeller latch fitting 20, outer bearing sealing gasket 21, outer bearing seal ring 22, wherein impeller 5 is assembled together with p-m rotor 1, the shortcoming of its existence is that motor starts under load-carrying situation, and because of electric pump does not have auxiliary starting device, and motor is the minimum point of motor outputting torsion just in the position that begins to start, therefore electric pump often causes starting difficulty because load is big at the beginning of starting, electric pump vibration and noise are all bigger in the starting process, and particularly performance is more obvious under low starting voltage.
3, summary of the invention:
The purpose of this utility model is to overcome above-mentioned shortcoming and provides a kind of starting duty little, and starting is easy, starting process vibration and the little synchronous permanent-magnet draining pump of noise.The utility model is simple in structure, easy to manufacture, and cost is lower, can satisfy requirement of client.
Structural representation of the present utility model such as Fig. 3,4,5, shown in 6, include rotor assembly A, stator assembly B, last pump case (6), following pump case (7), wherein go up pump case (6) and surround a sealing die cavity Q with following pump case (7), rotor assembly A includes p-m rotor (1), setting sleeve (4), impeller (5), rotating shaft (15), the two supports of rotating shaft (15) is on following pump case (7), setting sleeve (4) is sleeved in the rotating shaft (15), Q is divided into two cavity Q1 the sealing die cavity, Q2, p-m rotor (1) and impeller (5) are set in the two ends of rotating shaft (15), and p-m rotor (1) and impeller (5) lay respectively at cavity Q1, in the Q2, stator assembly B is installed in the side of rotor assembly A, and is packed in down on the pump case (7).
The side of above-mentioned setting sleeve (4) also is pressed with the gear spare (3) that prevents its axial motion and radially slide.
Above-mentioned p-m rotor (1) is plastic of injection moulding, and the one end is the plane, and the other end is provided with the cup-shaped annular thin wall of protruding stupefied (1A) in being, plastic centre is for being sleeved on the straight hole of rotating shaft (15).
The cup-shaped annular thin wall end of above-mentioned p-m rotor (1) p-m rotor (1) is pressed with damping rubber cushion (2), and damping rubber cushion (2) is coated on the outer surface of protruding stupefied (1A) by the groove of making on it.
Above-mentioned rotating shaft (15) is connected with the plastic packaging form with impeller (5); Rotating shaft (15) is adopted Spielpassung with p-m rotor (1).
One end of above-mentioned rotating shaft (15) also can be bearing on the bearing (14), and bearing (14) adopts the drive fit form to be fitted in down the bottom of pump case (7) cup-shaped die cavity; The top of following pump case (7) cup-shaped die cavity also is provided with an annular groove, and setting sleeve (4) is fitted on the groove by the annular protrusion on it.
Said stator assembly B includes drum (9), iron core (10), outer cover (13), wherein winding is wrapped on the drum (9), two magnetic poles of iron core (10) are inserted in down outside the cup-shaped die cavity of pump case (7) after passing drum (9), drum (9) is connected with outer cover (13), and outer cover (13) is connected with following pump case (7).
Above-mentioned drum (9) closely is connected with outer cover (13) by colluding the type structure, and outer cover (13) is connected with two ear shape structures that following pump case (7) is stretched out by the hook of its right and left.
The above-mentioned cup-shaped die cavity of pump case (7) down adopts inhomogeneous wall thickness.
Between above-mentioned pump case (7) down and last pump case (6) seal ring (8) is housed.
The utility model is made owing to adopting motor shaft to separate with p-m rotor, and impeller separates assembled construction with p-m rotor, and axle and p-m rotor employing Spielpassung, at the beginning of the electric pump energising starts, because p-m rotor is in free rotary state, thus be easy to start, after p-m rotor turns over several angle, it contacts with the gear spare that press-fits on the axle, the impeller that drives on axle and the axle thereof rotates together, and therefore, its starting duty is little, starting is easy, and starting process vibration and noise are little.The utility model is a kind of simple in structure, easy to manufacture, and cost is lower, can satisfy the synchronous permanent-magnet draining pump of customer requirement.
4, description of drawings:
Fig. 1 is the prior art constructions schematic representation;
Fig. 2 is the STRUCTURE DECOMPOSITION figure of prior art rotor assembly;
Fig. 3 is a structural representation of the present utility model;
Fig. 4 is STRUCTURE DECOMPOSITION figure of the present utility model;
Fig. 5 is the STRUCTURE DECOMPOSITION figure of the utility model rotor assembly;
Fig. 6 is the STRUCTURE DECOMPOSITION figure of the utility model stator assembly;
Fig. 7 is a side view of the present utility model.
5, embodiment:
Embodiment:
Structural representation of the present utility model such as Fig. 3,4,5, shown in 6, include rotor assembly A, stator assembly B, last pump case (6), following pump case (7), wherein going up pump case (6) is connected with following pump case (7), surround a sealing die cavity Q, rotor assembly A includes p-m rotor (1), setting sleeve (4), impeller (5), rotating shaft (15), the two supports of rotating shaft (15) is on following pump case (7), setting sleeve (4) is sleeved in the rotating shaft (15), Q is divided into two cavity Q1 the sealing die cavity, Q2, p-m rotor (1) and impeller (5) are set in the two ends of rotating shaft (15), and p-m rotor (1) and impeller (5) lay respectively at cavity Q1, in the Q2, stator assembly B is installed in the side of rotor assembly A, and is packed in down on the pump case (7).In the present embodiment, following pump case (7) is connected by tapping screw (16) with last pump case (6).The side of above-mentioned setting sleeve (4) also is pressed with the gear spare (3) that prevents its axial motion and radially slide.
In the present embodiment, above-mentioned p-m rotor (1) is plastic of injection moulding, and the one end is the plane, and the other end is provided with the cup-shaped annular thin wall of protruding stupefied (1A) in being, plastic centre is for being sleeved on the straight hole of rotating shaft (15).
For reaching the purpose that reduces noise and reduce the electric pump vibration, the cup-shaped annular thin wall end of above-mentioned p-m rotor (1) p-m rotor (1) is pressed with damping rubber cushion (2), and damping rubber cushion (2) is coated on the outer surface of protruding stupefied (1A) by the groove of making on it.The damping rubber cushion (2) that is coated on protruding stupefied surface plays buffer function in the contact-impact of p-m rotor (1) and gear spare (4).
In the present embodiment, above-mentioned rotating shaft (15) is connected with the plastic packaging form with impeller (5); Rotating shaft (15) is adopted Spielpassung with p-m rotor (1).
Frictional force when rotating for reducing rotating shaft (15), an end of above-mentioned rotating shaft (15) also can be bearing on the bearing (14), and bearing (14) adopts the drive fit form to be fitted in down the bottom of pump case (7) cup-shaped die cavity; The top of following pump case (7) cup-shaped die cavity also is provided with an annular groove, and setting sleeve (4) is fitted on the groove by the annular protrusion on it.
Said stator assembly B includes drum (9), iron core (10), outer cover (13), wherein winding is wrapped on the drum (9), two magnetic poles of iron core (10) are inserted in down outside the cup-shaped die cavity of pump case (7) after passing drum (9), drum (9) is connected with outer cover (13), and outer cover (13) is connected with following pump case (7).Wherein iron core (10) is a hatch frame, its opening end has two formed magnetic poles of concentric circle that external diameter is different, this magnetic pole matches with following pump case (7), thereby p-m rotor (1) is in the formed magnetic field of non-uniform gap, and this non-uniform magnetic field provides starting torque for the electric pump running.In the present embodiment, above-mentioned drum (9) closely is connected with outer cover (13) by colluding the type structure, and outer cover (13) is connected with two ear shape structures that following pump case (7) is stretched out by the hook of its right and left.Stator assembly B is connected with electric pump by the acting in conjunction of stator iron core (10) and outer cover (13), and it can come out from delamination on the pump housing.
In addition, the above-mentioned cup-shaped die cavity of pump case (7) down adopts inhomogeneous wall thickness, as shown in Figure 7.The inhomogeneous wall thickness of following pump case (7), can with iron core (10) better fit; In addition, the inhomogeneous wall thickness of following pump case (7) can also guarantee the intensity of cup-shaped die cavity under the situation of air gap minimum between the motor stator and rotor, to reach the requirement of supporting whole electric pump proper functioning; Because reducing of air gap also makes the electric property of electric pump be improved.
Claims (10)
1, a kind of synchronous permanent-magnet draining pump, it is characterized in that including rotor assembly A, stator assembly B, last pump case (6), following pump case (7), wherein go up pump case (6) and surround a sealing die cavity Q with following pump case (7), rotor assembly A includes p-m rotor (1), setting sleeve (4), impeller (5), rotating shaft (15), the two supports of rotating shaft (15) is on following pump case (7), setting sleeve (4) is sleeved in the rotating shaft (15), Q is divided into two cavity Q1 the sealing die cavity, Q2, p-m rotor (1) and impeller (5) are set in the two ends of rotating shaft (15), and p-m rotor (1) and impeller (5) lay respectively at cavity Q1, in the Q2, stator assembly B is installed in the side of rotor assembly A, and is packed in down on the pump case (7).
2, synchronous permanent-magnet draining pump according to claim 1 is characterized in that the side of above-mentioned setting sleeve (4) also is pressed with the gear spare (3) that prevents its axial motion and radially slide.
3, synchronous permanent-magnet draining pump according to claim 1, it is characterized in that above-mentioned p-m rotor (1) is plastic of injection moulding, the one end is the plane, and the other end is provided with the cup-shaped annular thin wall of protruding stupefied (1A) in being, plastic centre is for being sleeved on the straight hole of rotating shaft (15).
4, synchronous permanent-magnet draining pump according to claim 3, the cup-shaped annular thin wall end that it is characterized in that above-mentioned p-m rotor (1) p-m rotor (1) is pressed with damping rubber cushion (2), and damping rubber cushion (2) is coated on the outer surface of protruding stupefied (1A) by the groove of making on it.
5, synchronous permanent-magnet draining pump according to claim 1 is characterized in that above-mentioned rotating shaft (15) is connected with the plastic packaging form with impeller (5); Rotating shaft (15) is adopted Spielpassung with p-m rotor (1).
6, according to each described synchronous permanent-magnet draining pump in the claim 1 to 5, it is characterized in that an end of above-mentioned rotating shaft (15) also can be bearing on the bearing (14), bearing (14) adopts the drive fit form to be fitted in down the bottom of pump case (7) cup-shaped die cavity; The top of following pump case (7) cup-shaped die cavity also is provided with an annular groove, and setting sleeve (4) is fitted on the groove by the annular protrusion on it.
7, synchronous permanent-magnet draining pump according to claim 6, it is characterized in that said stator assembly B includes drum (9), iron core (10), outer cover (13), wherein winding is wrapped on the drum (9), two magnetic poles of iron core (10) are inserted in down outside the cup-shaped die cavity of pump case (7) after passing drum (9), drum (9) is connected with outer cover (13), and outer cover (13) is connected with following pump case (7).
8, synchronous permanent-magnet draining pump according to claim 7, it is characterized in that above-mentioned drum (9) closely is connected with outer cover (13) by colluding the type structure, outer cover (13) is connected with two ear shape structures that following pump case (7) is stretched out by the hook of its right and left.
9, synchronous permanent-magnet draining pump according to claim 7 is characterized in that the above-mentioned cup-shaped die cavity of pump case (7) down adopts inhomogeneous wall thickness.
10, synchronous permanent-magnet draining pump according to claim 7 is characterized in that between above-mentioned pump case (7) down and last pump case (6) seal ring (8) being housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072289 CN2742195Y (en) | 2004-08-04 | 2004-08-04 | Synchronous permanent magnet water drainage machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420072289 CN2742195Y (en) | 2004-08-04 | 2004-08-04 | Synchronous permanent magnet water drainage machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2742195Y true CN2742195Y (en) | 2005-11-23 |
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ID=35477664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420072289 Expired - Lifetime CN2742195Y (en) | 2004-08-04 | 2004-08-04 | Synchronous permanent magnet water drainage machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2742195Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103671133A (en) * | 2013-12-10 | 2014-03-26 | 无锡威孚精密机械制造有限责任公司 | Centrifugal pump device |
| CN106487155A (en) * | 2015-08-31 | 2017-03-08 | 德昌电机(深圳)有限公司 | Liquid pump, motor and its shaft sleeve unit |
| CN104822944B (en) * | 2012-12-12 | 2017-04-12 | 江门市地尔汉宇电器股份有限公司 | AC permanent-magnet drain pump |
| CN109114046A (en) * | 2018-09-07 | 2019-01-01 | 大连碧蓝节能环保科技有限公司 | Spiral draining pump |
| CN110486291A (en) * | 2019-08-15 | 2019-11-22 | 佛山市锐毅马达制造有限公司 | Surely single-phase permanent water circulating pump is turned to |
-
2004
- 2004-08-04 CN CN 200420072289 patent/CN2742195Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104822944B (en) * | 2012-12-12 | 2017-04-12 | 江门市地尔汉宇电器股份有限公司 | AC permanent-magnet drain pump |
| CN103671133A (en) * | 2013-12-10 | 2014-03-26 | 无锡威孚精密机械制造有限责任公司 | Centrifugal pump device |
| CN103671133B (en) * | 2013-12-10 | 2016-09-14 | 无锡威孚精密机械制造有限责任公司 | Centrifugal pump device |
| CN106487155A (en) * | 2015-08-31 | 2017-03-08 | 德昌电机(深圳)有限公司 | Liquid pump, motor and its shaft sleeve unit |
| CN109114046A (en) * | 2018-09-07 | 2019-01-01 | 大连碧蓝节能环保科技有限公司 | Spiral draining pump |
| CN110486291A (en) * | 2019-08-15 | 2019-11-22 | 佛山市锐毅马达制造有限公司 | Surely single-phase permanent water circulating pump is turned to |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20140804 Granted publication date: 20051123 |