Refrigeration appliance door-sealing arrangement
View Patent ↗A throat assembly ( 14 ) for forming the peripheral front face of the compartment opening of a refrigeration appliance ( 1 ). The throat assembly spanning the gap between respective front edges of a refrigerator cabinet ( 3 ) outer wrapper ( 2 ) and the compartment inner liner ( 13 ). The throat assembly includes at least one elongate plastics injection moulded component having a panel ( 15 ) including a planar front face ( 21 ) for contact with a door gasket seal ( 16 ) and an elongate magnet arrangement at its rear face ( 22 ) for magnetic coupling with a door gasket magnet ( 20 ). The throat assembly may comprise plural such interconnected elongate members providing a monolithic frame, formed in a single injection moulding operation, surrounding the compartment opening.
1. A throat assembly for a refrigeration appliance comprising:
a member having at least one elongate component, the elongate component having a lateral width and a longitudinal extent, the at least one elongate component including an elongate panel having a front face with a planar region, the planar region of the front face separated, in a direction perpendicular to the planar region, from a rear face of the panel, and
an elongate magnet arrangement in contact with or attached to the rear face of the panel, the magnet arrangement including two elongate magnet elements, both in contact with or attached to the rear face of the panel and extending in parallel, in the direction of the longitudinal extent of the at least one elongate component, the elongate magnet elements having lateral sides spaced apart in a direction substantially parallel to the planar region, and each magnet element magnetised to have two laterally-spaced opposite poles with magnetic field lines entering or exiting the magnet element on its respective lateral sides.
2. The throat assembly as claimed in claim 1 , wherein the longitudinal extent of the elongate component is at least 1.5 m.
3. The throat assembly as claimed in claim 1 , wherein at least one of the elongate magnet elements comprises at least one elongate flexible ferrite-based magnet which extends substantially the entire longitudinal extent of the elongate component.
4. The throat assembly as claimed in claim 1 , wherein the member includes plural, interconnected elongate components that together form a monolithic frame surrounding at least one opening.
5. The throat assembly as claimed in claim 1 , wherein the panel is free of any post-forming magnet-arrangement-accommodating reduced thickness regions.
6. The throat assembly as claimed in claim 1 , wherein the panel thickness between the front and rear faces is between about 2.0 mm and about 4.0 mm.
7. The throat assembly as claimed in claim 1 , wherein the elongate magnet elements are separated laterally by a gap of between about 2.0 mm and about 5.0 mm.
8. A refrigeration appliance including the throat assembly as claimed in claim 1 .
9. The refrigeration appliance as claimed in claim 8 , further comprising:
a cabinet body enclosing a cabinet space and having an open side surrounded by an opening periphery, the opening periphery including at least one longitudinal extent,
a compartment within the cabinet body, the compartment provided by a liner nested within the cabinet body and having an open side accessible via the open side of the cabinet body, the compartment open side having a periphery with at least one longitudinal extent spaced apart from the at least one longitudinal extent of the cabinet body by an insulating gap, and
a door operatively associated with the cabinet body to selectively close the compartment by covering the compartment's open side,
wherein the elongate component of the member spans the insulating gap with its opposed lateral sides attached to the longitudinal extents of the cabinet and compartment peripheries, respectively, and
wherein the door includes a magnetic seal aligned with the throat assembly elongate magnet arrangement when the door is in a closed position.
10. The refrigeration appliance as claimed in claim 9 , wherein the magnetic seal comprises an elongate magnet element that is positioned so that in the closed position of the door, it is overlapped with the throat assembly elongate magnet arrangement, between the lateral extents of the throat assembly elongate magnet arrangement.
11. The refrigeration appliance as claimed in claim 10 , wherein the elongate magnet element of the door magnetic seal has front and rear sides spaced apart in a direction substantially perpendicular to the planar region, and is magnetised to have two opposite poles with magnetic field lines entering the magnet element substantially perpendicularly to either one of its front or rear sides and exiting the magnet element substantially perpendicularly to the other one of its front or rear sides.
12. The refrigeration appliance as claimed in claim 9 , wherein the throat assembly elongate magnet arrangement has a door-facing pole located between its lateral extents, with magnetic field lines entering or exiting the door-facing pole substantially perpendicularly to the front face of the panel.
13. The refrigeration appliance as claimed in claim 12 , wherein the pole of the magnet element of the door magnetic seal nearest to the cabinet when the door is in its closed position is opposite in polarity to the door-facing pole of the throat assembly elongate magnet arrangement.
14. A throat assembly for a refrigeration appliance comprising:
a member having at least one elongate plastics component, the elongate component having a lateral width and a longitudinal extent, the at least one elongate component including an elongate panel having a front face with a planar region, the planar region of the front face separated, in a direction perpendicular to the planar region, from a rear face of the panel, and
an elongate magnet arrangement in contact with or attached to the rear face of the panel,
wherein the magnet arrangement includes two elongate magnet elements, both having front faces in contact with or attached to the rear face of the panel and extending in parallel, in the direction of the longitudinal extent of the at least one elongate component,
wherein the elongate magnet elements each have lateral sides and are each magnetised to have two laterally-spaced opposite poles with magnetic field lines entering and exiting the magnet elements on their respective lateral sides, and
wherein each elongate magnet element has a proximal pole facing towards the other elongate magnet element, and wherein the proximal poles are of the same magnetic polarity.
15. A throat assembly for a refrigeration appliance comprising:
a member having at least one elongate component, the elongate component having a lateral width and a longitudinal extent, the elongate component including an elongate panel having a front face with a planar region, the planar region of the front face separated, in a direction perpendicular to the planar region, from a rear face of the panel by a panel thickness, and
an elongate magnet arrangement in contact with or attached to the rear face of the panel and extending in the direction of the longitudinal extent of the elongate component, the elongate magnet arrangement having two laterally spaced-apart magnet elements, wherein the poles of the magnet elements are arranged so that the magnets experience a repulsion force therebetween.
16. The throat assembly as claimed in claim 15 , wherein the magnet elements are separated laterally by a gap of between about 2.0 mm and about 5.0 mm.
17. The throat assembly as claimed in claim 15 , wherein the magnet elements have lateral sides and are each magnetised to have two laterally-spaced opposite poles with magnetic field lines entering and exiting the magnet elements on their respective lateral sides.
18. The throat assembly as claimed in claim 17 , wherein each magnet element has a proximal pole facing towards the other magnet element, and wherein the proximal poles are of the same magnetic polarity.