Angled baffles for a heat exchanger

Patent metadata

Field	Value
Publication number	US-12007184-B2
Application number	US-202117377066-A
Country	US
Kind code	B2
Filing date	Jul 15, 2021
Priority date	Jul 15, 2021
Publication date	Jun 11, 2024
Grant date	Jun 11, 2024

Abstract

A baffle for a furnace of a heating, ventilation, and air conditioning (HVAC) system includes a mounting flange configured to be secured to a housing of the furnace. The baffle also includes a first panel extending from the mounting flange into an air flow path extending through the furnace and a second panel extending from the first panel toward the housing.

First claim

The invention claimed is:

1. A baffle for a furnace of a heating, ventilation, and air conditioning (HVAC) system, comprising:
a mounting flange configured to be secured to a housing panel of a housing of the furnace;
a first panel extending from the mounting flange and away from the housing panel into an air flow path extending through the furnace; and
a second panel extending from the first panel and converging toward the housing panel in an upstream direction, relative to a direction of air flow along the air flow path, wherein the first panel is a first planar member extending linearly from the mounting flange to the second panel, and wherein the second panel is a second planar member extending linearly from the first planar member.

2. The baffle of claim 1 , wherein the first panel is configured to extend generally perpendicularly from the housing panel in an installed configuration of the baffle.

3. The baffle of claim 1 , wherein the mounting flange is a first flange, and the baffle comprises a second flange extending from the second panel, wherein the second flange is configured to abut the housing in an installed configuration of the baffle.

4. The baffle of claim 3 , wherein the second flange is configured to abut an insulation layer of the housing in the installed configuration of the baffle.

5. The baffle of claim 1 , wherein the baffle is configured to be secured to the housing panel at a location aligned with a heat exchanger of the furnace along the direction of air flow along the air flow path.

6. The baffle of claim 1 , wherein the first panel and the second panel are disposed at an angle between 40 and 50 degrees relative to one another.

7. The baffle of claim 1 , wherein the mounting flange, the first panel, and the second panel are integrally formed as a single piece.

8. A furnace of a heating, ventilation, and air conditioning (HVAC) system, comprising:
a housing defining an air flow path therethrough; and
a baffle mounted to a housing panel of the housing, comprising:
a flange secured to the housing panel;
a first panel extending from the flange and away from the housing panel into the air flow path; and
a second panel extending from the first panel and converging toward the housing panel in an upstream direction, relative to a direction of air flow along the air flow path, wherein the first panel is a first planar member extending linearly from the flange to the second panel, and wherein the second panel is a second planar member extending linearly from the first planar member.

9. The furnace of claim 8 , comprising a heat exchanger disposed within the housing and along the air flow path, wherein the baffle and the heat exchanger overlap one another along an axis of the air flow path through the housing.

10. The furnace of claim 9 , wherein the heat exchanger comprises a plurality of tubes defining a first pass, a second pass, and a third pass of the heat exchanger, wherein the second panel overlaps the second pass, the third pass, or both along the axis of the air flow path through the housing.

11. The furnace of claim 8 , wherein the second panel extends linearly and at an oblique angle relative to the housing panel.

12. The furnace of claim 11 , wherein the first panel extends linearly and generally perpendicularly from the housing panel.

13. The furnace of claim 8 , wherein the first panel and the second panel are disposed at an angle between 40 and 50 degrees relative to one another.

14. The furnace of claim 8 , wherein the flange, the first panel, and the second panel are formed from a single piece of material.

15. A furnace, comprising:
a housing comprising a plurality of housing panels coupled to one another to define an air flow path extending through the housing;
a heat exchanger disposed within the air flow path of the housing; and
a baffle secured to a housing panel of the plurality of housing panels, wherein the baffle comprises:
a flange mounted to the housing panel;
a first baffle panel extending from the flange and away from the housing panel into the air flow path, wherein the first baffle panel extends toward the heat exchanger; and
a second baffle panel extending from the first baffle panel and converging toward the housing panel in an upstream direction, relative to a direction of air flow along the air flow path, wherein the first baffle panel is a first planar member extending linearly from the flange to the second baffle panel, and wherein the second baffle panel is a second planar member extending linearly from the first planar member.

16. The furnace of claim 15 , wherein the housing panel is a first housing panel of the plurality of housing panels, the baffle is a first baffle, and the furnace comprises a second baffle secured to a second housing panel of the plurality of housing panels, wherein the first housing panel is disposed opposite the second housing panel relative to the air flow path of the housing.

17. The furnace of claim 16 , wherein the flange is a first flange, and wherein the second baffle comprises:
a second flange mounted to the second housing panel;
a third baffle panel extending from the second flange into the air flow path and toward the heat exchanger; and
a fourth baffle panel extending from the third baffle panel toward the second housing panel.

18. The furnace of claim 17 , wherein the first baffle panel and the second baffle panel are disposed at a first angle between 40 and 50 degrees relative to one another, and wherein the third baffle panel and the fourth baffle panel are disposed at a second angle between 40 and 50 degrees relative to one another.

19. The furnace of claim 15 , wherein the heat exchanger comprises a plurality of tubes defining a first pass, a second pass, and a third pass of the plurality of tubes, wherein the second baffle panel overlaps the second pass, the third pass, or both along an axis of the air flow path through the housing to direct an air flow toward the second pass, the third pass, or both.

20. The furnace of claim 15 , wherein the flange, the first baffle panel, and the second baffle panel are integrally formed from a single piece of material.

Assignees

• Johnson Controls Tyco IP Holdings LLP
• Tyco Fire & Security Gmbh

Inventors

• Mathew Rakesh
• Sherrow Lester Dale
• Davis Ii Daniel William
• Hoyt Bennie Dale

Classifications

• F24H9/02

  Casings; Cover lids; Ornamental panels · CPC title

• F24H9/06

  Arrangement of mountings or supports · CPC title

• F28F2235/00

  Means for filling gaps between elements, e.g. between conduits within casings · CPC title

• F28D2021/0024

  for combustion apparatus, e.g. for boilers · CPC title

• F28D1/0477

  the conduits being bent in a serpentine or zig-zag · CPC title