Abstract

A heat pump system, a swimming pool comprising the heat pump system and a method of operating the heat pump system A heat pump system (1), comprising a first and a second heat exchanger 5 (11, 12), an expansion valve (13), a compressor (14) and a fan (19), wherein the second heat exchanger (12) is in the form of a U-shaped surface (21) with two opposing legs (23, 24), a first leg (23) of the two opposing legs and a second leg (24) of the two opposing legs, and a base (22) interconnecting the first (23) and the second (24) leg, wherein the U-shaped surface (21) 10 forms fan chamber walls (10) delimiting a fan chamber (25) enveloping the fan (19), the fan chamber (25) being adapted such that in operation the fan (19) creates an airflow (35, 36) between and through the base (22) and at least part of the opposing legs (23, 24).

IPC Classes  ?

• F24H 4/02 - Water heaters
• E04H 4/12 - Devices or arrangements for circulating water
• F24H 9/02 - CasingsCover lidsOrnamental panels

Abstract

A multi-cyclone sediment filter apparatus (1), comprising a cyclone cartridge (9) with a plurality of conically shaped fluid cyclones (21) and a plurality of fluid flow paths (38) through said cyclone cartridge (9) to the plurality of fluid cyclones (21); the cyclone housing (2) comprising a fluid inlet (5) for introducing an inlet stream of the liquid into the cyclone housing (2) such that the inlet stream of the liquid passes through the cyclone cartridge (9) towards the plurality of flow paths (38) to the plurality of fluid cyclones (21), wherein the fluid inlet (5) and the cyclone cartridge (9) are provided for introducing the inlet stream of the liquid subsequently along the fluid flow paths (38) of at least one group of the plurality of the fluid cyclones (21).

IPC Classes  ?

• B04C 5/04 - Tangential inlets
• B04C 5/28 - Multiple arrangement thereof for parallel flow

Abstract

The invention relates to a pool cover mechanism for winding and unwinding slats over a pool. The pool cover mechanism comprises a tube for connecting with the slats, a tube motor assembly for rotating the tube, a first holder for receiving the non-rotating motor end of the tube motor assembly, an outer shaft bearing assembly connected to the second end of the tube, a second holder for receiving the outer shaft bearing assembly, wherein the outer shaft bearing assembly and the second holder are configured such that at least part of the outer shaft bearing assembly can rotate in the second holder when the tube is tilted compared to the position of the tube wherein the motor end is in the first holder.

IPC Classes  ?

• E04H 4/08 - Coverings consisting of rigid elements

Abstract

A lighting for underwater use provides a pool lighting includes a housing with front and back portion enclosing an internal volume. At least part of the front portion is optically transparent. The lighting comprises a PCB with substrate layer, and at least one light source on a substrate layer front side. The PCB is arranged in the internal volume with the front and back side facing towards the front and back portion. The housing is provided with at least one first opening allowing water to enter the internal volume and have contact with the PCB. The at least one light source is sealed off from contact with water. The lighting comprises an optically transparent electrically insulating waterproof first seal covering at least the at least one light source for sealing it off from contact with water. The front portion of the housing is glued against the PCB by means of the first seal.

IPC Classes  ?

• F21V 31/00 - Gas-tight or water-tight arrangements
• F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
• F21V 23/06 - Arrangement of electric circuit elements in or on lighting devices the elements being coupling devices
• F21V 29/58 - Cooling arrangements using liquid coolants characterised by the coolants
• F21V 31/04 - Provision of filling media
• H05K 1/02 - Printed circuits Details
• H05K 1/03 - Use of materials for the substrate
• H05K 1/05 - Insulated metal substrate
• F21W 131/401 - Lighting for industrial, commercial, recreational or military use for swimming pools
• F21Y 115/10 - Light-emitting diodes [LED]

Abstract

Lighting for underwater use The invention provides a pool lighting (100) comprising a housing (200) with front and back portion (210, 220) enclosing an internal volume (230). At least part of the front portion (210) is optically transparent. The lighting (100) comprises a PCB (300) with substrate layer (310), and at least one light source (320) on a substrate layer (310) front side (311). The PCB (300) is arranged in the internal volume (230) with the front and back side (312) facing towards the front and back portion (210, 220). The housing (200) is provided with at least one first opening (221) allowing water to enter the internal volume (230) and have contact with the PCB (300). The at least one light source (320) is sealed off from contact with water. The lighting (100) comprises an optically transparent electrically insulating waterproof first seal (400) covering at least the at least one light source (320) for sealing it off from contact with water. The front portion (210) of the housing is glued against the PCB (300) by means of the first seal (400).

IPC Classes  ?

• F21V 23/00 - Arrangement of electric circuit elements in or on lighting devices
• F21V 29/56 - Cooling arrangements using liquid coolants
• F21V 29/83 - Cooling arrangements characterised by passive heat-dissipating elements, e.g. heat-sinks the elements having apertures, ducts or channels, e.g. heat radiation holes
• F21V 31/00 - Gas-tight or water-tight arrangements
• F21V 31/04 - Provision of filling media
• H05K 3/28 - Applying non-metallic protective coatings
• F21W 121/02 - Use or application of lighting devices or systems for decorative purposes, not provided for in groups for fountains
• F21W 131/401 - Lighting for industrial, commercial, recreational or military use for swimming pools

Abstract

The invention relates to a pool cover mechanism for winding and unwinding slats over a pool. The pool cover mechanism comprises a tube for connecting with the slats, a tube motor assembly for rotating the tube, a first holder for receiving the non-rotating motor end of the tube motor assembly, an outer shaft bearing assembly connected to the second end of the tube, a second holder for receiving the outer shaft bearing assembly, wherein the outer shaft bearing assembly and the second holder are configured such that at least part of the outer shaft bearing assembly can rotate in the second holder when the tube is tilted compared to the position of the tube wherein the motor end is in the first holder.

IPC Classes  ?

• E04H 4/08 - Coverings consisting of rigid elements
• E04H 4/10 - Coverings of flexible material