CN211116388U - Miniature hydroelectric generator - Google Patents
Miniature hydroelectric generator Download PDFInfo
- Publication number
- CN211116388U CN211116388U CN201922309047.7U CN201922309047U CN211116388U CN 211116388 U CN211116388 U CN 211116388U CN 201922309047 U CN201922309047 U CN 201922309047U CN 211116388 U CN211116388 U CN 211116388U
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- rotating shaft
- magnetic ring
- generator
- shell
- shaft sleeve
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Abstract
The utility model provides a miniature hydroelectric generator, include: a housing; the driving unit is rotationally arranged in the shell and comprises a rotating shaft and an impeller for driving the rotating shaft to rotate; the power generation unit comprises a magnetic ring and a coil assembly, the magnetic ring is fixedly arranged outside the rotating shaft and rotates synchronously with the rotating shaft, and the coil assembly is fixedly arranged on the shell; the magnetic ring is in interference fit with the shaft sleeve, and knurling is arranged on the matching part of the rotating shaft and the shaft sleeve. The rotating shaft and the magnetic ring are in interference fit through the shaft sleeve, the knurling surface at the matching position of the rotating shaft increases the engaging force of the rotating shaft and the magnetic ring, and the surface of the shaft sleeve is provided with leather grains, so that the friction force between the shaft sleeve and the magnetic ring is increased, the shaft sleeve is prevented from falling off, the position of the rotating shaft is stable, the operation is stable, and no noise is generated.
Description
Technical Field
The utility model belongs to the technical field of the generator, concretely relates to miniature hydroelectric generator.
Background
The miniature hydroelectric generator is widely used in the aspects of household appliances and mechanical production such as shower heads, water taps, night landscape, direct drinking water illumination and the like, generates electricity through water flow driving, and further provides a power supply for the liquid crystal display. The miniature hydroelectric generator needs to work in cold and hot water and different water pressure states when in use, even if the use environment is frequently changed between cold and hot, the water pressure can be changed at high and low levels, the influence of the temperature and the high water pressure change on the rotating shaft and the magnetic ring of the miniature hydroelectric generator is great, the gap change is easily generated, the operation is unstable, the noise is high, and even the rotating shaft and the magnetic ring fall off, so that the generator fails.
SUMMERY OF THE UTILITY MODEL
The utility model provides a miniature hydroelectric generator, which overcomes the defects existing in the background technology. The utility model provides a technical scheme that its technical problem adopted is:
a miniature hydro-generator comprising: a housing; the driving unit is rotationally arranged in the shell and comprises a rotating shaft and an impeller for driving the rotating shaft to rotate; the power generation unit comprises a magnetic ring and a coil assembly, the magnetic ring is fixedly arranged outside the rotating shaft and rotates synchronously with the rotating shaft, and the coil assembly is fixedly arranged on the shell; the magnetic ring is in interference fit with the shaft sleeve, and knurling is arranged on the matching part of the rotating shaft and the shaft sleeve.
Furthermore, two end faces of the rotating shaft are smooth spherical surfaces.
Furthermore, two end faces of the rotating shaft are stainless steel rotating shafts.
Furthermore, the surface of the shaft sleeve is provided with dermatoglyph.
Furthermore, a containing cavity is formed in one end of the shell, a water inlet cavity is formed in the other end of the shell, the magnetic ring and the coil assembly are placed in the containing cavity, and the impeller is placed in the water inlet cavity.
The magnetic ring winding device further comprises a framework and an end cover, the framework is arranged in the containing cavity and provided with an accommodating groove, the magnetic ring is arranged in the accommodating groove, the end cover covers the accommodating groove, the coil assembly is wound outside the framework, and the two bearings are respectively arranged on the end cover and the framework.
Furthermore, a graphite gasket is arranged between the end cover and the rotating shaft, and a bearing on the end cover presses the graphite gasket; the rotating shaft is sleeved with a graphite gasket in a penetrating manner, and the graphite gasket is positioned between the magnetic ring and the bearing on the framework.
Further, the driving unit further comprises an inclined water body, and the inclined water body covers the water inlet cavity.
Further, epoxy resin is filled between the framework and the shell.
The utility model has the advantages that:
the rotating shaft and the magnetic ring are in interference fit through the shaft sleeve, the knurling surface at the matching position of the rotating shaft increases the engaging force of the rotating shaft and the magnetic ring, and the rotating shaft and the magnetic ring are prevented from falling off under high water pressure and high flow rate when the generator runs at a high speed, so that the running stability is ensured.
The surface of the shaft sleeve is provided with the dermatoglyph which increases the friction force between the shaft sleeve and the magnetic ring, prevents the magnetic ring from falling off, and ensures that the rotating shaft is stable in position and stable in operation and has no noise.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a three-dimensional exploded view of a miniature hydroelectric generator according to the present invention.
Fig. 2 is a schematic cross-sectional view of a micro hydro-generator shown in fig. 1.
Fig. 3 is a schematic structural view of the middle rotating shaft of the present invention.
Fig. 4 is a schematic structural view of the middle shaft sleeve of the present invention.
Description of reference numerals:
the device comprises a shell 1, an impeller 2, a rotating shaft 3, knurls 3-1, a framework 4, a magnetic ring 5, a coil assembly 6, a bearing 7, an accommodating groove 8, an end cover 9, a shaft sleeve 10, an accommodating cavity 11, a water inlet cavity 12, an inclined water body 13, a bearing 14, a graphite gasket 15 and a graphite gasket 16.
Detailed Description
Referring to fig. 1 and 2, the present invention provides a miniature hydroelectric generator, comprising: a housing 1; the driving unit is rotationally arranged in the shell 1 and comprises a rotating shaft 3 and an impeller 2 for driving the rotating shaft 3 to rotate; the power generation unit comprises a magnetic ring 5 and a coil assembly 6, the magnetic ring 5 is fixedly arranged outside the rotating shaft 3 and rotates synchronously with the rotating shaft 3, and the coil assembly 6 is fixedly arranged on the shell 1; the shaft sleeve 10 is sleeved between the rotating shaft 3 and the magnetic ring 5, the magnetic ring 5 is in interference fit with the shaft sleeve 10, the matching part of the rotating shaft 3 and the shaft sleeve 10 is provided with knurls 3-1, two end faces of the rotating shaft 3 are smooth spherical surfaces and are provided with bearings 7 and 14 matched with the smooth spherical surfaces, and the surface of the shaft sleeve 10 is provided with dermatoglyph. When the water-jet cutting device is used, water flow impacts the impeller 2, the impeller 2 rotates to further drive the rotating shaft 3 to rotate synchronously, the rotating shaft 3 drives the magnetic ring 5 to rotate synchronously, and the magnetic field generated by the magnetic ring 5 cuts the coil assembly 6 to generate current. The utility model discloses a miniature hydroelectric generator still includes skeleton 4 and end cover 9.
The frame 4 is internally provided with a containing groove 8, the magnetic ring 5 is arranged in the containing groove 8, the end cover 9 covers the containing groove 8, and the coil assembly 6 is wound on the frame 4. The bearing 14 is provided on the frame 4 and is located at the bottom of the housing groove 8. The bearing 7 is arranged on an end cap 9. One end of the shell 1 is provided with an accommodating cavity 11, the framework 4 is placed in the accommodating cavity 11, and epoxy resin is filled between the framework 4 and the shell 1. The other end of the shell 1 is provided with a water inlet cavity 12, and the impeller 2 is placed in the water inlet cavity 12.
The driving unit is inclined water body 13, and the inclined water body 13 covers the water inlet cavity 12. One end of the rotating shaft 3 is connected with the impeller 2, and the other end of the rotating shaft 3 penetrates through the bearing 14 in the framework 4, extends into the framework 4 and is inserted into the bearing 7 of the end cover 9. The shaft sleeve 10 is sleeved on the rotating shaft 3, and the magnetic ring 5 is sleeved on the shaft sleeve 10 and is in interference fit with the shaft sleeve 10, so that the impeller 2, the rotating shaft 3, the shaft sleeve 10 and the magnetic ring 5 synchronously rotate.
A graphite gasket 15 is arranged between the end cover 9 and the top end of the rotating shaft 3, and the bearing 7 presses the graphite gasket 15. The shaft 3 is sleeved with a graphite gasket 16, and the graphite gasket 16 is positioned between the magnetic ring 5 and the bearing 14.
The above description is only for the purpose of illustrating the technical solutions of the present invention and not for the purpose of limiting the same, and other modifications or equivalent replacements made by those of ordinary skill in the art to the technical solutions of the present invention should be covered within the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solutions of the present invention.
Claims (9)
1. A miniature hydro-generator comprising: a housing; the driving unit is rotationally arranged in the shell and comprises a rotating shaft and an impeller for driving the rotating shaft to rotate; the power generation unit comprises a magnetic ring and a coil assembly, the magnetic ring is fixedly arranged outside the rotating shaft and rotates synchronously with the rotating shaft, and the coil assembly is fixedly arranged on the shell; the magnetic ring is in interference fit with the shaft sleeve, and knurling is arranged on the surface of the part, matched with the shaft sleeve, of the rotating shaft.
2. A miniature hydro-generator as defined in claim 1 wherein: two end faces of the rotating shaft are smooth hemispherical faces.
3. A miniature hydro-generator as defined in claim 1 wherein: the rotating shaft is a stainless steel rotating shaft.
4. A miniature hydro-generator as defined in claim 1 wherein: the surface of the shaft sleeve is provided with dermatoglyph.
5. A miniature hydro-generator as defined in claim 1 wherein: one end of the shell is provided with an accommodating cavity, the other end of the shell is provided with a water inlet cavity, the magnetic ring and the coil assembly are placed in the accommodating cavity, and the impeller is placed in the water inlet cavity.
6. A miniature hydro-generator as claimed in claim 5, wherein: the coil component is wound outside the framework, and the two bearings are respectively arranged on the end cover and the framework.
7. A miniature hydro-generator as claimed in claim 6, wherein: a graphite gasket is arranged between the end cover and the rotating shaft, and a bearing on the end cover presses the graphite gasket; the rotating shaft is sleeved with a graphite gasket in a penetrating manner, and the graphite gasket is positioned between the magnetic ring and the bearing on the framework.
8. A miniature hydro-generator as claimed in claim 5, wherein: the driving unit further comprises an inclined water body which covers the water inlet cavity.
9. A miniature hydro-generator as claimed in claim 6, wherein: epoxy resin is filled between the framework and the shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309047.7U CN211116388U (en) | 2019-12-20 | 2019-12-20 | Miniature hydroelectric generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922309047.7U CN211116388U (en) | 2019-12-20 | 2019-12-20 | Miniature hydroelectric generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211116388U true CN211116388U (en) | 2020-07-28 |
Family
ID=71706107
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922309047.7U Active CN211116388U (en) | 2019-12-20 | 2019-12-20 | Miniature hydroelectric generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211116388U (en) |
-
2019
- 2019-12-20 CN CN201922309047.7U patent/CN211116388U/en active Active
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