Pool cleaner generator module with magnetic coupling

• US 9,714,639 B2
• Filed: 09/04/2013
• Issued: 07/25/2017
• Est. Priority Date: 09/04/2012
• Status: Active Grant

• Current Assignee: Pentair Water Pool And Spa Incorporated (Pentair Plc (Ireland))
• Original Assignee: Pentair Water Pool And Spa Incorporated (Pentair Plc (Ireland))
• Inventors: Deery, Brian, Gopalan, Suresh C.
• Primary Examiner(s): Patel, Tulsidas C
• Application Number:
  US14/018,359
• Publication Number:
  US 20140184065A1
• Time in Patent Office: 1,420 Days
• Field of Search: 290 52, 310104
• CPC Class Codes: E04H 4/148 Lighting means
• CPC Class Codes: E04H 4/1654 Self-propelled cleaners
• CPC Class Codes: F03B 13/10 Submerged units incorporating electric generators or motors
• CPC Class Codes: F21L 13/02 with fluid drive
• CPC Class Codes: H02K 7/11 with dynamo-electric clutches
• CPC Class Codes: H02K 7/1823 structurally associated with turbines or similar engines
• CPC Class Codes: Y02E 10/20 Hydro energy

Abstract

Some embodiments provide a pool cleaner generator module with magnetic coupling. The generator module can include a housing, a paddle wheel, a magnetic follower, and a generator. The generator can power components of the pool cleaner, such as light emitting diode (LEDs). The housing can be removably coupled to the pool cleaner and can include a flow directing portion positioned in a fluid path of the pool cleaner. The paddle wheel can be located adjacent to the flow directing portion and can rotate in response to fluid flow through the fluid path. The generator can be magnetically coupled to the paddle wheel and can generate power through rotation of the paddle wheel. The LED can be coupled to the generator and can receive the generated power from the generator to illuminate an area adjacent to the pool cleaner.

Claims

1. A method of operating a pool cleaner, the method comprising the steps of:

receiving fluid flow through an opening in the pool cleaner;

generating electric power using a paddle wheel positioned to receive at least some of the fluid flow and a generator magnetically coupled to the paddle wheel;

determining a pressure of the fluid flow;

operating at least one light emitting diode using the generated electric power according to a first operation if the pressure is sufficient for normal operation of the pool cleaner; and

operating the at least one light emitting diode using the generated electric power according to a second operation if the pressure is insufficient for normal operation of the pool cleaner.

2. The method of claim 1, wherein the first operation includes operating the at least one light emitting diode to emit a first color and the second operation includes operating the at least one light emitting diode to emit a second color different than the first color.

3. The method of claim 1, wherein the first operation includes operating the at least one light emitting diode to emit a constantly visible light and the second operation includes operating the at least one light emitting diode to emit a flashing light.

4. The method of claim 1, wherein the pool cleaner further includes a generator module.

5. The method of claim 4, wherein the generator module comprises an outer housing, the paddle wheel, the generator, and a magnetic follower.

6. The method of claim 5, wherein the generator module further comprises a circuit board.

7. The method of claim 5, wherein the generator module further includes a device for converting an alternating magnetic field into an alternating electric current.

8. The method of claim 7, wherein the generator module further includes electronic circuitry that is driven by the alternating electric current.

9. The method of claim 8, wherein the at least one light emitting diode receives power from the alternating electric current and illuminates an area adjacent to the pool cleaner.

10. The method of claim 1, wherein the generator is positioned inside an outer housing and is in communication with a driven shaft.

11. The method of claim 10, wherein the outer housing is disposed between a supply mast of the pool cleaner and a pool hose attachment adapter.

12. The method of claim 11, wherein the outer housing is coupled to the supply mast by a snap fit connection and the outer housing is coupled to the pool hose attachment adapter by a friction fit connection.

13. The method of claim 1, wherein the generator is in communication with a driven shaft.

14. The method of claim 1, wherein the paddle wheel includes a magnet section having at least one drive magnet and rotating in response to the fluid flow through a fluid path.

15. The method of claim 1, wherein the paddle wheel is positioned around a drive shaft.

16. The method of claim 1, wherein the paddle wheel is located within a paddle wheel housing, which is removably coupled to a generator housing.

17. The method of claim 1, wherein the paddle wheel includes magnets embedded into the paddle wheel.

18. The method of claim 1, wherein an array of coils are situated around the paddle wheel.

19. The method of claim 18, wherein the array of coils are configured to be exposed to an alternating magnetic field when the paddle wheel rotates.

20. The method of claim 1, wherein the at least one light emitting diode is connected to the generator using at least one lead cable.

21. The method of claim 1, wherein the at least one light emitting diode includes control circuitry that controls at least one of illumination and color of the at least one light emitting diode.