CN201588808U - Direct current brushless micro-circulation pump - Google Patents
Direct current brushless micro-circulation pump Download PDFInfo
- Publication number
- CN201588808U CN201588808U CN2009202839858U CN200920283985U CN201588808U CN 201588808 U CN201588808 U CN 201588808U CN 2009202839858 U CN2009202839858 U CN 2009202839858U CN 200920283985 U CN200920283985 U CN 200920283985U CN 201588808 U CN201588808 U CN 201588808U
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- rotor
- impeller
- pump
- rotor shaft
- direct current
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- Expired - Fee Related
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Abstract
The utility model discloses a direct current brushless micro-circulation pump, which comprises a pump casing (1), a rotor (2), a stator (3) and an impeller (4), wherein the rotor (2) is sheathed on a rotor shaft (5), a nano-zirconia coating is arranged on the surface of the rotor shaft (5), a plastic layer (7) is arranged on the surface of the rotor (2), the rotor (2) and the impeller (4) form an integrated structure, and a gap of 0.8 mm to 1.0 mm is arranged between the root part of each impeller blade and an impeller shaft sleeve (6). By adopting the structure, the wear resistance of the rotor shaft is improved, the noise produced by enlarged gaps due to long-term running of the pump is reduced, the water flow can be avoided from producing vortex flow at the root parts of the impeller blades, the noise and the work load of the pump can be reduced, and the running stability can be further improved.
Description
Technical field
The utility model relates to a kind of pump, especially relates to a kind of DC brushless miniature circulating pump that is used for balcony wall-hanging solar hot water system.
Background technique
Recycle pump is a kind of hot water pipeline pump, mainly comprises shell, rotor, stator etc., often is used to solar water heater, to improve the pressure of supply water of hot water.The existing recycle pump that is used for balcony wall-hanging solar hot water system, volume ratio is bigger, is installed in the hot water tank outside, and is very not attractive in appearance.The recycle pump rotor adopts metallic material to make more, often is in abominable hot water environment because of working, and time one length is subjected to rotten corrosion easily, influences working life.In addition, be no gap cooperating structure between the impeller blade root of existing pump and the impeller sleeve, current can produce eddy current at the impeller blade root, have strengthened the noise and the working load of pump; Also can cause the gap to be strengthened between rotor shaft and the axle bed owing to the wearing and tearing of rotor shaft, thereby cause that the pump running is unstable, produce noise.
Summary of the invention
The purpose of this utility model provides a kind of compact structure, the stable DC brushless miniature circulating pump of running.
The problem of the required solution of the utility model realizes by the following technical solutions: it comprises pump case, rotor, stator and impeller, rotor is sleeved on the rotor shaft, described rotor shaft surface is provided with nano oxidized zirconium coating, rotor surface is provided with plastic layer, rotor and impeller are integrated, and are provided with the gap of 0.8-1.0mm between each impeller blade root and the impeller sleeve.
The said structure that the utility model adopts, the nano oxidized zirconium coating that the rotor shaft surface is provided with has improved the wear-resisting property of rotor shaft, can reduce to strengthen the noise that produces because of pump long-play gap; Be provided with the gap of 0.8-1.0mm between each impeller blade root and the impeller sleeve, can avoid current to produce eddy current, reduce the noise and the working load of pump, improve operation stability at the impeller blade root.
Description of drawings
Below in conjunction with accompanying drawing the utility model is described further:
Figure 1 shows that structural representation of the present utility model
Figure 2 shows that A-A cut-away view among Fig. 1
Figure 3 shows that B-B cut-away view among Fig. 1
Embodiment
By accompanying drawing as can be known, this DC brushless miniature circulating pump comprises pump case 1, rotor 2, stator 3 and impeller 4, rotor 2 is sleeved on the rotor shaft 5, described rotor shaft 5 surfaces are provided with nano oxidized zirconium coating, rotor 2 surfaces are provided with plastic layer 7, rotor 2 is integrated with impeller 4, is provided with the gap of 0.8-1.0mm between each impeller blade root and the impeller sleeve 6.Pump is when moving, and hot water is from impeller 4 processes, because rotor 2 is integrated with impeller 4, water can not infiltrate from the impeller 4 and the cooperation place of rotor 2, has guaranteed that further rotor iron core does not contact with the water isolation.The nano oxidized zirconium coating that rotor shaft 5 surfaces are provided with can reduce the degree of wear because of running up between rotor shaft and the axle bed, and the life-span is long.Pump case 1 can adopt engineering plastics to make, and to reduce heat waste, improves usefulness.According to practice, the gap between impeller blade root and the impeller sleeve 6 is best with 0.8-1.0mm, and impeller is rotated counterclockwise, and adopts centrifugal principle, circulating water is thrown away and forms flow velocity, effectively reduces the working load in the closed system.
Claims (1)
1. DC brushless miniature circulating pump, comprise pump case, rotor, stator and impeller, rotor is sleeved on the rotor shaft, it is characterized in that: described rotor shaft surface is provided with nano oxidized zirconium coating, rotor surface is provided with plastic layer, rotor and impeller are integrated, and are provided with the gap of 0.8-1.0mm between each impeller blade root and the impeller sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202839858U CN201588808U (en) | 2009-12-14 | 2009-12-14 | Direct current brushless micro-circulation pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202839858U CN201588808U (en) | 2009-12-14 | 2009-12-14 | Direct current brushless micro-circulation pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201588808U true CN201588808U (en) | 2010-09-22 |
Family
ID=42748586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202839858U Expired - Fee Related CN201588808U (en) | 2009-12-14 | 2009-12-14 | Direct current brushless micro-circulation pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201588808U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709717A (en) * | 2009-12-14 | 2010-05-19 | 江苏光芒厨卫太阳能科技有限公司 | DC brushless miniature circulating pump |
| CN103148014A (en) * | 2013-04-01 | 2013-06-12 | 中国北方发动机研究所(天津) | Split heat-insulation double-sided water pump impeller |
-
2009
- 2009-12-14 CN CN2009202839858U patent/CN201588808U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101709717A (en) * | 2009-12-14 | 2010-05-19 | 江苏光芒厨卫太阳能科技有限公司 | DC brushless miniature circulating pump |
| CN101709717B (en) * | 2009-12-14 | 2016-09-14 | 江苏光芒新能源股份有限公司 | DC brushless miniature circulating pump |
| CN103148014A (en) * | 2013-04-01 | 2013-06-12 | 中国北方发动机研究所(天津) | Split heat-insulation double-sided water pump impeller |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100922 Termination date: 20111214 |