Miniature hydroelectric generator with stabilizing stand

By using ceramic ball bearings to support the impeller and shaft in a micro hydroelectric generator, combined with sealing rings and threaded connections, the problem of unstable operation caused by changes in water temperature and pressure is solved, thereby improving the stability and service life of the generator.

CN224305599UActive Publication Date: 2026-05-29XIAMEN LANTI INTELLIGENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XIAMEN LANTI INTELLIGENT TECH CO LTD
Filing Date
2025-07-04
Publication Date
2026-05-29

AI Technical Summary

Technical Problem

Micro hydroelectric generators are prone to gap changes when switching between hot and cold water and when water pressure changes, which can lead to unstable operation, loud noise, and even loosening or falling off of magnetic rings, coils, impellers, and shafts, resulting in serious damage.

Method used

A micro hydroelectric generator with a stabilizing support was designed. The impeller and shaft are supported by ceramic ball bearings, and the components are connected by sealing rings and threaded connections to ensure stable operation of each component under different water temperature and pressure conditions.

Benefits of technology

The ceramic ball bearing support and sealing structure reduces friction, improves the generator's service life and operational stability, and prevents components from loosening and being damaged.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a kind of miniature hydroelectric generator with stabilizing support, comprising: a shell;A water passing base;A drive unit, rotationally arranged in the shell, and comprising a rotating shaft and the impeller of driving the rotating shaft rotation, impeller is connected in the one end of rotating shaft;A power generation unit, including a magnetic ring and a coil assembly, magnetic ring is fixed in rotating shaft outside and is synchronously rotated with rotating shaft, and coil assembly is fixed in shell;Shell is screwed on water passing base, water passing base bottom is equipped with support, support is equipped with hemispherical recess, ceramic ball is equipped in recess, impeller bottom is also equipped with recess, ceramic ball is equipped in recess, can ensure that generator long time in different water temperature water pressure environment Normal operation, not loose, increase the service life of generator.
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Description

Technical Field

[0001] This utility model belongs to the field of generator technology, specifically relating to a miniature hydroelectric generator with a stabilizing support. Background Technology

[0002] With the development of technology and the improvement of people's quality of life, miniature hydroelectric generators are widely used in bathroom applications such as shower heads, faucets, night landscapes, and direct drinking water lighting. Shower heads need to switch frequently between cold and hot water, and the water pressure also varies. Miniature hydroelectric generators are greatly affected by temperature and water pressure, which can easily cause gap changes, resulting in unstable operation, loud noise, and even loosening and falling off of the magnetic ring, coil, impeller, and shaft, causing damage. Utility Model Content

[0003] This utility model provides a miniature hydroelectric generator with a stabilizing support, which overcomes the shortcomings of the prior art. The technical solution adopted by this utility model to solve its technical problem is as follows:

[0004] A miniature hydroelectric generator with a stabilizing support includes: a housing; a water-passing base; a drive unit rotatably disposed within the housing, and including a rotating shaft and an impeller for driving the rotating shaft to rotate, the impeller being connected to one end of the rotating shaft; a power generation unit including a magnetic ring and a coil assembly, the magnetic ring being fixed outside the rotating shaft and rotating synchronously with the rotating shaft, the coil assembly being fixed inside the housing; the housing is threaded onto the water-passing base, and a support is provided at the bottom of the water-passing base.

[0005] Furthermore, the bottom of the impeller is provided with a groove, and ceramic balls are provided in the groove.

[0006] Furthermore, the support of the water-passing base is provided with a hemispherical groove, and ceramic balls are provided in the groove.

[0007] Furthermore, the support of the water-passing base is provided with a cylinder.

[0008] Furthermore, a sealing ring is provided at the junction of the water-passing base and the housing, the impeller is suspended inside the water-passing base, and a water inlet end cover is provided outside the impeller. The water inlet end cover is fitted onto the lower end of the housing, and a sealing ring is provided between the water inlet end cover and the housing. The lower end of the water inlet end cover is inserted into a groove inside the water-passing base.

[0009] Furthermore, the micro hydroelectric generator also includes a frame and a front cover of the frame. The frame is placed inside the housing and has a receiving groove. The magnetic ring is placed in the receiving groove. The front cover of the frame covers the receiving groove and is screwed onto the frame. A sealing ring is provided at the screw joint between the front cover and the frame. The coil assembly is wound around the outside of the frame.

[0010] Furthermore, the lower end of the frame front cover is provided with a column, which is sleeved on the lower end of the housing. A sealing ring is provided at the joint, and a ceramic bearing is provided above the sealing ring. The ceramic bearing is sleeved on the rotating shaft.

[0011] Furthermore, the top inner side of the housing is provided with threads and four square long grooves. The top of the rib plate of the skeleton is provided with raised tooth-shaped protrusions. The skeleton rib plate is inserted into the housing along the square long grooves and rotated so that the skeleton is locked in the threaded groove of the housing.

[0012] Furthermore, epoxy resin is filled between the frame and the housing to keep the generator sealed.

[0013] The beneficial effects of this utility model are:

[0014] The bottom of the water-passing base is equipped with a bracket, and the bracket has a hemispherical groove with ceramic balls inside. The bottom of the impeller also has a groove with ceramic balls inside. The bracket and the ceramic balls on it can support the impeller and its various components, ensuring that the generator can operate normally for a long time in different water temperature and pressure environments without loosening or falling off. The two balls also reduce the friction between the impeller and the water-passing base bracket, increasing the service life of the generator.

[0015] The top inner side of the housing is threaded and has four square grooves. The top of the frame ribs has raised tooth-shaped protrusions. The frame ribs are inserted into the housing along the square grooves and rotated to make the frame lock into the threaded grooves of the housing, so that the frame will not loosen and fall down after the generator has been running for a long time. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a perspective view of the present invention.

[0018] Figure 2 This is a three-dimensional exploded view of the present invention.

[0019] Figure 3 This is a cross-sectional view of the present invention.

[0020] Figure 4 This is a schematic diagram of the casing and water inlet end cap structure of this utility model.

[0021] Figure 5 This is a schematic diagram of the top of the casing and the frame of this utility model.

[0022] Figure 6 This is a schematic diagram of the water-passing base structure in this utility model.

[0023] Figure 7This is a schematic diagram of the water-passing base structure of another type of bracket in this utility model.

[0024] Figure 8 This is a schematic diagram of the skeleton structure in this utility model.

[0025] Explanation of reference numerals in the attached figures:

[0026] 1. Housing; 2. Water-passing base; 3. Frame; 4. Rotating shaft; 5. Coil assembly; 6. Magnetic ring; 7. Frame front cover; 8. Ceramic bearing; 9. Impeller; 10. Gasket; 11. Bearing; 12. Washer; 13. No. 1 sealing ring; 14. No. 1 ceramic ball; 15. No. 2 ceramic ball; 16. No. 3 sealing ring; 17. Water inlet end cover; 18. No. 4 sealing ring; 19. Bracket; 20. Water inlet; 21. Water outlet; 22. Thread; 23. Tooth-shaped protrusion; 31. Detailed Implementation

[0027] Please refer to Figures 1-8 This utility model discloses a micro hydroelectric generator with a stable support, comprising: a housing 1; a water-passing base 2; a drive unit rotatably disposed within the housing 1, including a rotating shaft 4 and an impeller 9 driving the rotating shaft, the impeller 9 being connected to one end of the rotating shaft 4; and a power generation unit including a magnetic ring 6 and a coil assembly 5, the magnetic ring 6 being fixed outside the rotating shaft 4 and rotating synchronously with the rotating shaft 4, the coil assembly 5 being fixed inside the housing 1; the housing 1 being threadedly connected to the water-passing base 2, the bottom of the water-passing base 2 being provided with a support 20, the bottom of the impeller 9 being provided with a groove, the groove containing a first ceramic ball 15, the support 20 being provided with a hemispherical groove, the groove containing a second ceramic ball 16, or the support 20 being provided with a cylinder that can support the first ceramic ball 15 on the impeller 9.

[0028] A No. 3 sealing ring 17 is provided at the junction of the water-passing base 2 and the housing 1. The impeller 9 is suspended inside the water-passing base 2. An inlet end cover 18 is provided outside the impeller 9. The inlet end cover 18 is fitted onto the lower end of the housing 1. A No. 4 sealing ring 19 is provided between the inlet end cover 18 and the housing 1. The lower end of the inlet end cover 18 is inserted into the groove inside the water-passing base 2.

[0029] The micro hydroelectric generator also includes a frame 3 and a frame front cover 7. The frame 3 is placed inside the housing 1. The frame 3 has a receiving groove. The magnetic ring 6 is placed in the receiving groove. The frame front cover 7 covers the receiving groove. The frame front cover 7 is screwed onto the frame 3. A first sealing ring 13 is provided at the screw joint between the frame front cover 7 and the frame 3. The coil assembly 5 is wound around the outside of the frame 3. A column is provided at the lower end of the frame front cover 7. The column is sleeved on the lower end of the housing 1. A second sealing ring 14 is provided at the joint. A ceramic bearing 8 is provided above the second sealing ring 14. The ceramic bearing 8 is sleeved on the rotating shaft 4. The other end of the rotating shaft 4 is inserted into the frame 3. A gasket 10 is provided at the joint with the frame. A bearing 11 is provided below the gasket 10 and sleeved on the rotating shaft 4.

[0030] The top inner side of the housing 1 is provided with threads 23 and four square long grooves. The top of the rib plate of the frame 3 is provided with raised tooth-shaped protrusions 31. The frame rib plate is inserted into the housing 1 along the square long grooves and rotated so that the frame 3 is locked in the threaded groove of the housing 1. Epoxy resin is filled between the frame 3 and the housing 1 to keep the generator sealed.

[0031] When in use, water flows in from the inlet 21 and enters the inlet end cover 18, impacting the impeller 9. The impeller 9 rotates, which in turn drives the rotating shaft 4 to rotate synchronously. The rotating shaft 4 drives the magnetic ring 6 to rotate synchronously. The magnetic field generated by the magnetic ring 6 cuts the coil assembly 5 to generate current.

[0032] The above description is only used to illustrate the technical solution of this utility model and is not intended to limit it. Any other modifications or equivalent substitutions made by those skilled in the art to the technical solution of this utility model, as long as they do not depart from the spirit and scope of the technical solution of this utility model, should be covered within the scope of the claims of this utility model.

Claims

1. A miniature hydroelectric generator with a stabilizing support, characterized in that, include: A housing; a water-passing base; a drive unit rotatably disposed within the housing, including a rotating shaft and an impeller driving the rotating shaft to rotate, the impeller being connected to one end of the rotating shaft; a power generation unit including a magnetic ring and a coil assembly, the magnetic ring being fixed outside the rotating shaft and rotating synchronously with the rotating shaft, the coil assembly being fixed inside the housing; the housing is threadedly connected to the water-passing base, and the bottom of the water-passing base is provided with a bracket.

2. A micro hydroelectric generator with a stabilizing support according to claim 1, characterized in that: The impeller has a groove at its bottom, and ceramic balls are placed inside the groove.

3. A micro hydroelectric generator with a stabilizing support according to claim 2, characterized in that: The support of the water-passing base is provided with a hemispherical groove, and ceramic balls are provided in the groove.

4. A micro hydroelectric generator with a stabilizing support according to claim 2, characterized in that: The support of the water-passing base is equipped with a cylinder.

5. A micro hydroelectric generator with a stabilizing support according to claim 1, characterized in that, A sealing ring is provided at the junction of the water-passing base and the machine housing. The impeller is suspended inside the water-passing base. A water inlet cover is provided outside the impeller. The water inlet cover is fitted onto the lower end of the machine housing. A sealing ring is provided between the water inlet cover and the machine housing. The lower end of the water inlet cover is inserted into a groove inside the water-passing base.

6. A micro hydroelectric generator with a stabilizing support according to claim 1, characterized in that: It also includes a frame and a frame front cover. The frame is placed inside the housing. The frame has a receiving groove. The magnetic ring is placed in the receiving groove. The frame front cover covers the receiving groove. The frame front cover is screwed onto the frame by threads. A sealing ring is provided at the screw joint between the frame front cover and the frame. The coil assembly is wound around the outside of the frame.

7. A micro hydroelectric generator with a stabilizing support according to claim 6, characterized in that: The lower end of the frame front cover is provided with a column, which is sleeved on the lower end of the housing. A sealing ring is provided at the joint, and a ceramic bearing is provided above the sealing ring. The ceramic bearing is sleeved on the rotating shaft.

8. A micro hydroelectric generator with a stabilizing support according to claim 6, characterized in that: The top inner side of the housing is threaded and has four square grooves. The top of the rib plate of the frame is provided with a raised tooth-shaped protrusion. The frame rib plate is inserted into the housing along the square grooves and rotated so that the frame is locked in the threaded groove of the housing.

9. A micro hydroelectric generator with a stabilizing support according to claim 8, characterized in that: The space between the frame and the housing is filled with epoxy resin.