CN203641097U - Drainage pump with pump body structure capable of storing foreign matter - Google Patents
Drainage pump with pump body structure capable of storing foreign matter Download PDFInfo
- Publication number
- CN203641097U CN203641097U CN201320687330.3U CN201320687330U CN203641097U CN 203641097 U CN203641097 U CN 203641097U CN 201320687330 U CN201320687330 U CN 201320687330U CN 203641097 U CN203641097 U CN 203641097U
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- Prior art keywords
- pump
- rotor
- circular arc
- shaped stator
- iron core
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- Expired - Lifetime
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 41
- 238000004806 packaging method and process Methods 0.000 claims description 11
- 238000000034 method Methods 0.000 abstract description 3
- 230000004308 accommodation Effects 0.000 abstract 3
- 238000007789 sealing Methods 0.000 abstract 2
- 230000000903 blocking effect Effects 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a drainage pump with a pump body structure capable of storing a foreign matter. The drainage pump comprises a pump cover, a pump body, an impeller assembly arranged in a pump cover cavity, a U-shaped stator core arranged in a pump body cavity, a coil, a rotor and a rotating shaft, wherein after the U-shaped stator core penetrates through the coil, concave arc sections of two arms of the U-shaped stator core are arranged on the two sides of a magnetic core of the rotor in a clamping manner. The drainage pump is characterized in that plastic sealing housings are wrapped between the U-shaped stator core and the coil, on the external surface where the U-shaped stator core is exposed from the end surface of the coil, and on the outer end surfaces of the two arms of the U-shaped stator core; the plastic sealing housings and the concave arc sections of the two arms of the U-shaped stator core jointly define a rotor accommodation space used for accommodating the rotor; the rotor accommodation space is provided with a closed bottom; and grooves used for accommodating the foreign matter are formed in the surface of the closed bottom. The drainage pump is provided with the accommodation space and the grooves, so that pump blocking and normal operation influence of the pump due to the foreign matter in a running process are avoided.
Description
Technical field
The utility model relates to draining pump technical field.
Background technique
Notification number is on May 23rd, 2013, publication number is that the Chinese utility model patent " cancelling the AC permanent-magnet draining pump of rotor drum " of CN202954990U discloses a kind of draining pump, it has cancelled the rotor drum between rotor magnetic core and stator iron core, can dwindle the distance between rotor magnetic core and stator iron core, improve the operational efficiency of draining pump.But due to the cause of working environment, its stator iron core long period of soaking is placed in a humid environment in water or for a long time, even if antirust processing has been carried out on iron core surface, but As time goes on, surface also has the possibility of oxidation.The oxide that oxidation produces likely can be deposited between iron core and rotor, thereby affects the normal operation of draining pump.
Model utility content
The purpose of this utility model is to provide a kind of improved pump body structure, is provided with the space that can store foreign material, thereby avoids water pump stuck.
To achieve these goals, the utility model has adopted following technological scheme: a kind of draining pump with the pump body structure that can store foreign matter, comprise pump cover, the pump housing, be arranged at the impeller assembly of pump cover inner chamber, be arranged at the U-shaped stator iron core of pump housing inner chamber, coil, rotor and rotating shaft, U-shaped stator iron core is folded in the magnetic core both sides of rotor through the indent arc section of its both arms after coil, between U-shaped stator iron core and coil, U-shaped stator iron core exposes to the outer surface of coil end face, and the exterior edge face of U-shaped stator iron core both arms is wrapped in plastic packaging housing, the indent arc section of described plastic packaging housing and U-shaped stator iron core two arms limits one jointly for holding the rotor containing space of rotor, described rotor containing space has an airtight bottom, be provided with the arc groove for holding foreign matter in described airtight lower surface.
The indent arc section of U-shaped each arm of stator iron core is by the first circular arc, the second circular arc and be connected in the first circular arc and the second circular arc between straightway form, the first circular arc and the second circular arc are isocentric circular arc, and the first circular arc place diameter of a circle is greater than the second circular arc place diameter of a circle, the indent arc section of the first arm of U-shaped stator iron core and the indent arc section of the second arm are with respect to rotor center symmetry, between the second circular arc and magnetic core outer surface, leave running clearance, between the first circular arc and magnetic core outer surface, leave tolerant gap, the radial width in described tolerant gap is greater than the radial width of running clearance.The plastic packaging housing of described rotor containing space and the gap of magnetic core are not less than running clearance.
Described has two for holding the arc groove of foreign matter, is concentric circle setting.
The utility model can also be realized above-mentioned purpose by the following technical solutions:
A kind of draining pump with the pump body structure that can store foreign matter, comprise pump cover, the pump housing, be arranged at the impeller assembly of pump cover inner chamber, be arranged at the U-shaped stator iron core of pump housing inner chamber, coil, rotor and rotating shaft, U-shaped stator iron core is folded in the magnetic core both sides of rotor through the indent arc section of its both arms after coil, it is characterized in that: between U-shaped stator iron core and coil, U-shaped stator iron core exposes to the outer surface of coil end face, and the exterior edge face of U-shaped stator iron core both arms is wrapped in plastic packaging housing, the indent arc section of described plastic packaging housing and U-shaped stator iron core two arms limits one jointly for holding the rotor containing space of rotor, the indent arc section of U-shaped each arm of stator iron core is by the first circular arc, the second circular arc and be connected in the first circular arc and the second circular arc between straightway form, the first circular arc and the second circular arc are isocentric circular arc, and the first circular arc place diameter of a circle is greater than the second circular arc place diameter of a circle, the indent arc section of the first arm of U-shaped stator iron core and the indent arc section of the second arm are with respect to rotor center symmetry, between the second circular arc and magnetic core outer surface, leave running clearance, between the first circular arc and magnetic core outer surface, leave tolerant gap, the radial width in described tolerant gap is greater than the radial width of running clearance, the plastic packaging housing of described rotor containing space and the gap of magnetic core are not less than running clearance.
Have the draining pump of above-mentioned feature, described in it, rotor containing space has an airtight bottom, is provided with the arc groove for holding foreign matter in described airtight lower surface.
Further, described has two for holding the arc groove of foreign matter, is concentric circle setting.
Draining pump of the present utility model, the bottom of its rotor containing space has the groove that can hold foreign matter, and stator iron core has different distances from the cylindrical outer surface of magnetic core rotor at diverse location, distance between stator iron core and rotor be can dwindle most possibly on the one hand, gap, elevator pump efficiency reduced, can avoid the stuck water pump that exists because of foreign matter in operation process by article containing space on the other hand, affect the normal operation of water pump.
Accompanying drawing explanation
Fig. 1 is the sectional view of draining pump on vertical rotation axis axial direction, and magnetic core rotor is installed in figure.
Fig. 2 is the sectional view of draining pump on vertical rotation axis axial direction, and magnetic core rotor is not installed in figure.
Fig. 3 is that draining pump is at the sectional view through on the median plane of shaft axis.
Fig. 4 is the location diagram of U-shaped stator iron core and rotor magnetic core.
Embodiment
Be the AC permanent-magnet draining pump that has used permagnetic synchronous motor of the present utility model as shown in Figures 1 to 3, it comprises pump cover (not shown) and the pump housing.
Pump cover inner chamber is provided with impeller assembly 1, and pump housing inner chamber arranges the assemblies such as U-shaped stator iron core 2, coil 3 and rotor.U-shaped stator iron core 2 is folded in magnetic core 4 both sides of rotor through the indent arc section of coil 3 rear its two arms.For the compactedness of assembling and efficiency and the performance that improves pump, magnetic core outer surface does not wrap up any housing, and only retains the running clearance that can make Rotor free movement between stator iron core.Between U-shaped stator iron core and coil 5.1, U-shaped stator iron core exposes to the outer surface 5.2 of coil end face and the exterior edge face 5.3 of U-shaped stator iron core both arms is wrapped in plastic packaging housing 5, plastic packaging housing 5 and the indent arc section of 2 liang of arms of U-shaped stator iron core jointly limit one be opened on pump housing top and from opening extend to pump housing bottom for holding the rotor containing space of rotor.
As shown in Figure 4, the indent arc section of U-shaped each arm of stator iron core by the first circular arc 2.1, the second circular arc 2.3 and be connected in the first circular arc 2.1 and the second circular arc 2.3 between straightway 2.2 form.Indent arc section on indent arc section and the second arm on the first arm of U-shaped stator iron core is with respect to spindle central symmetry.The first circular arc and the second circular arc are isocentric circular arc, and the first circular arc place diameter of a circle is greater than the second circular arc place diameter of a circle.Between the second circular arc and rotor magnetic core outer surface, leave running clearance, between the first circular arc and rotor magnetic core outer surface, leave tolerant gap, running clearance is only to hold the reasonable clearance that rotor magnetic core freely rotates, the radial width in tolerant gap is greater than the radial width of running clearance, can be used for holding foreign matter.
The central angle of described the first circular arc is roughly 25～29 degree, and the central angle of the second circular arc is roughly 43～47 degree, and the central angle of straightway is roughly 18～22 degree.Above-mentioned angle is only that the one of this example is given an example, and is not limited to this angle in practical application.
Be illustrated in figure 2 the sectional drawing of the pump housing that rotor is not installed, this figure and Fig. 3 all can see that rotor containing space has an airtight bottom, is provided with the arc groove 6 for holding foreign matter in airtight lower surface.Further, may be arranged to two for holding the arc groove of foreign matter, for concentrically ringed mode is arranged.
The utility model includes, but are not limited to above-described embodiment and content shown in the drawings, other all there is identical essentiality content with the technical solution of the utility model product structure all fall into protection domain of the present utility model within.
Claims (4)
1. one kind has the draining pump of the pump body structure that can store foreign matter, comprise pump cover, the pump housing, be arranged at the impeller assembly of pump cover inner chamber, be arranged at the U-shaped stator iron core of pump housing inner chamber, coil, rotor and rotating shaft, U-shaped stator iron core is folded in the magnetic core both sides of rotor through the indent arc section of its both arms after coil, it is characterized in that: between U-shaped stator iron core and coil, U-shaped stator iron core exposes to the outer surface of coil end face, and the exterior edge face of U-shaped stator iron core both arms is wrapped in plastic packaging housing, the indent arc section of described plastic packaging housing and U-shaped stator iron core two arms limits one jointly for holding the rotor containing space of rotor, described rotor containing space has an airtight bottom, be provided with the groove for holding foreign matter in described airtight lower surface.
2. the draining pump with the pump body structure that can store foreign matter according to claim 1, it is characterized in that: the indent arc section of U-shaped each arm of stator iron core is by the first circular arc, the second circular arc and be connected in the first circular arc and the second circular arc between linkage section form, the first circular arc and the second circular arc are isocentric circular arc, and the first circular arc place diameter of a circle is greater than the second circular arc place diameter of a circle, the indent arc section of the first arm of U-shaped stator iron core and the indent arc section of the second arm are with respect to rotor center symmetry, between the second circular arc and magnetic core outer surface, leave running clearance, between the first circular arc and magnetic core outer surface, leave tolerant gap, the radial width in described tolerant gap is greater than the radial width of running clearance, the plastic packaging housing of described rotor containing space and the gap of magnetic core are not less than running clearance.
3. the draining pump with the pump body structure that can store foreign matter according to claim 2, is characterized in that: described is a circle or the two circle arc grooves that concentric circle arranges for holding the groove of foreign matter.
4. the draining pump with the pump body structure that can store foreign matter according to claim 3, is characterized in that: the arc groove of each described circle is made up of some sections of disjunct arc groove sections.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687330.3U CN203641097U (en) | 2013-11-01 | 2013-11-01 | Drainage pump with pump body structure capable of storing foreign matter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320687330.3U CN203641097U (en) | 2013-11-01 | 2013-11-01 | Drainage pump with pump body structure capable of storing foreign matter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203641097U true CN203641097U (en) | 2014-06-11 |
Family
ID=50872346
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320687330.3U Expired - Lifetime CN203641097U (en) | 2013-11-01 | 2013-11-01 | Drainage pump with pump body structure capable of storing foreign matter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203641097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106487123A (en) * | 2015-08-31 | 2017-03-08 | 德昌电机(深圳)有限公司 | Liquid pump and its motor |
-
2013
- 2013-11-01 CN CN201320687330.3U patent/CN203641097U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106487123A (en) * | 2015-08-31 | 2017-03-08 | 德昌电机(深圳)有限公司 | Liquid pump and its motor |
| CN106487123B (en) * | 2015-08-31 | 2024-04-09 | 德昌电机(深圳)有限公司 | Liquid pump and driving motor thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 529040 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee after: HANYU GROUP Co.,Ltd. Address before: 529000 No. 336 Qing Lan Road, hi tech Development Zone, Guangdong, Jiangmen Patentee before: JANGMEN IDEAR HANYU ELECTRICAL JOINT-STOCK Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |