Pressure sensor hub for a vacuum-insulated structure

Patent metadata

Field	Value
Publication number	US-12385797-B2
Application number	US-202318110968-A
Country	US
Kind code	B2
Filing date	Feb 17, 2023
Priority date	Feb 17, 2023
Publication date	Aug 12, 2025
Grant date	Aug 12, 2025

Abstract

A pressure sensor hub for a vacuum-insulated structure includes: (a) a pressure sensor, the pressure sensor including a sensing element and an electrical connector extending from the sensing element; (b) a printed circuit board including conductive pads that are exposed, each of the conductive pads in electrical communication with a different portion of the electrical connector of the pressure sensor; and (c) a body that supports the pressure sensor and the printed circuit board.

First claim

What is claimed is:

1. A pressure sensor hub for a vacuum-insulated structure comprising:
a pressure sensor, the pressure sensor comprising a sensing element and an electrical connector extending from the sensing element;
a printed circuit board comprising one or more conductive pads that are exposed, each of the one or more conductive pads in electrical communication with a different portion of the electrical connector of the pressure sensor; and
a body that supports the pressure sensor and the printed circuit board.

2. The pressure sensor hub of claim 1 , wherein the body comprises:
an outer flange defining a perimeter of the pressure sensor hub, a first side of the body, and a second side of the body that faces away from the first side,
an outer wall system extending from the outer flange away from the second side of the body, the outer wall system comprising (i) two outer walls that are spaced apart from each other and opposing each other, (ii) an outer wall generally orthogonal to the two outer walls and contiguous with the two outer walls, and (iii) a ledge proximate an edge of the outer wall system, wherein (i) the outer wall system defines an outer chamber further defined by a floor contiguous with the outer flange and (ii) the printed circuit board is disposed upon the ledge and opposes the floor and with the edge of the outer wall system extending around at least a portion of a perimeter of the printed circuit board,
an inner wall system extending from the floor away from the second side of the body within the outer chamber, the inner wall system comprising contiguous inner walls that define an inner chamber that extends through body,
a second inner wall system extending from the floor toward the second side of the body, the second inner wall system comprising portions that oppose each other and further define the inner chamber that extends through the body, and
a second outer wall system extending from the outer flange away from the first side of the body, the second outer wall system extending contiguously around the second inner wall system, wherein the sensing element of the pressure sensor is disposed within the inner chamber.

3. The pressure sensor hub of claim 2 , wherein
the electrical connector of the pressure sensor extends through one or more apertures of the printed circuit board, with a portion of the electrical connector being disposed outside of the inner chamber and exposed.

4. The pressure sensor hub of claim 2 , wherein
the inner wall system further comprises a ledge proximate an edge of the inner wall system, the ledge disposed toward the inner chamber,
the pressure sensor hub further comprises a seal that is disposed upon the ledge of the inner wall system and with the inner wall system extending around a perimeter of the seal, and
the seal comprises one or more apertures through which the electrical connector of the pressure sensor extends.

5. The pressure sensor hub of claim 2 , wherein
the printed circuit board comprises a glue aperture in communication with the inner chamber.

6. The pressure sensor hub of claim 2 , wherein
the inner wall system further comprises heat stake posts that extend from the edge away from the second side of the pressure sensor hub, and
the printed circuit board comprises heat stake apertures through which the heat stake posts extend.

7. The pressure sensor hub of claim 1 , wherein
the printed circuit board further comprises an edge connector.

8. The pressure sensor hub of claim 1 , wherein
one of the conductive pads is configured to provide supply voltage of the pressure sensor, and
another one of the conductive pads is configured to receive signal voltage of the pressure sensor.

9. The pressure sensor hub of claim 1 , wherein
the pressure sensor hub is a component of a structure,
the structure is configured to be a vacuum-insulated structure and comprises a first liner, a second liner opposing the first liner, and a space disposed between the first liner and the second liner, and
the pressure sensor hub is disposed on the first liner with the sensing element of the pressure sensor in fluid communication with the space between the first liner and the second liner.

10. A vacuum-insulated structure comprising:
a first liner, a second liner opposing the first liner, and a space disposed between the first liner and the second liner; and
a pressure sensor hub is disposed on the first liner, the pressure sensor hub comprising:
a pressure sensor, the pressure sensor comprising a sensing element and an electrical connector extending from the sensing element;
a printed circuit board comprising one or more conductive pads that are exposed, each of the one or more conductive pads in electrical communication with a different portion of the electrical connector of the pressure sensor; and
a body that supports the pressure sensor and the printed circuit board,

wherein, the sensing element of the pressure sensor is in fluid communication with the space between the first liner and the second liner.

11. The vacuum-insulated structure of claim 10 , wherein
the vacuum-insulated structure is a component of an appliance.

12. A refrigerator comprising:
a vacuum-insulated structure comprising a first liner, a second liner opposing the first liner, and a space disposed between the first liner and the second liner, wherein an air pressure within the space is less than atmospheric air pressure; and
a pressure sensor hub disposed on the first liner, the pressure sensor hub comprising (i) a pressure sensor in fluid communication with the space between the first liner and the second liner, (ii) a printed circuit board in electrical communication with the pressure sensor, and (iii) a body that supports the pressure sensor and the printed circuit board,
wherein, the pressure sensor is configured to generate an electrical signal that varies as a function of the air pressure within the space.

13. The refrigerator of claim 12 , wherein
the printed circuit board includes a substrate and one or more conductive pads supported by the substrate, each of the conductive pads being in electrical communication with the pressure sensor.

14. The refrigerator of claim 13 further comprising:
a cabinet that defines a refrigerable compartment; and
a door cooperating with the cabinet to provide selective access to the refrigerable compartment from an external compartment,
wherein, the door comprises the vacuum-insulated structure.

15. The refrigerator of claim 13 , wherein
the pressure sensor includes (i) a sensing element in fluid communication with the space between the first liner and the second liner and (ii) an electrical connector extending from the sensing element that transmits electrical signals from the sensing element, the electrical connector being in electrical communication with the one or more conductive pads of the printed circuit board.

16. The refrigerator of claim 15 , wherein
the body comprises:
an outer flange defining a perimeter of the pressure sensor hub, a first side of the body that faces away from the first liner of the vacuum-insulated structure, and a second side of the body that faces away from the first side and toward the first liner,
an outer wall system extending from the outer flange away from the second side of the body, the outer wall system comprising (i) two outer walls that are spaced apart from each other and opposing each other, (ii) an outer wall generally orthogonal to the two outer walls and contiguous with the two outer walls, and (iii) a ledge proximate an edge of the outer wall s

Assignees

• Whirlpool Co

Inventors

• Allard Paul Bennett
• Aurand Wesley J
• Bauman Gregory Edward
• Ekshinge Sunil S
• Phalak Sanket V

Classifications

• G01L19/0069

  from the sensor to its support · CPC title

• F25D2700/00

  Means for sensing or measuring; Sensors therefor · CPC title

• F25D2201/14

  using subatmospheric pressure · CPC title

• G01L19/148 Primary

  Details about the circuit board integration, e.g. integrated with the diaphragm surface or encapsulation · CPC title

• G01L19/147

  Details about the mounting of the sensor to support or covering means · CPC title