# US 2019/0170373 A1 · Foam substructure for a heat exchanger

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- Number: US 2019/0170373 A1
- Document ID: US20190170373A1
- Status: Published application
- Kind: A1
- Application number: 16/267,081
- Filed: 2019-02-04
- Published: 2019-06-06
- Earliest claimed: 2016-01-15
- Assignees: Johnson Controls Technology Company
- Applicants: Johnson Controls Technology Company
- Inventors: Robert L. Eskew; Frank D. Ashby; Jeremiah M. Horn; Cody J. Kaiser
- Web page: https://patentgrep.com/patent/US20190170373A1

## CPC

- F24F 1/16: Arrangement or mounting thereof
- F24F 1/50: with outlet air in upward direction
- F24F 1/56: Casing or covers of separate outdoor units, e.g. fan guards
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)

## Abstract

A heat exchanger system includes a heat exchanger coil, a base of a foam structure including a clamp with a first arm and a second arm, where the first arm and the second arm are configured to exert a clamping force against the heat exchanger coil, and a vertical member of the foam substructure coupled to the base and abutting a cover of the heat exchanger system, where the base and the vertical member are configured to block air flowing through the heat exchanger from flowing into a void between the heat exchanger coil and the cover.

## Claims

### Claim 1

A heat exchanger system, comprising:
a heat exchanger coil;
a base of a foam substructure comprising a clamp having a first arm and a second arm, wherein the first arm and the second arm are configured to exert a clamping force against the heat exchanger coil; and
a vertical member of the foam substructure coupled to the base and abutting a cover of the heat exchanger system, wherein the base and the vertical member are configured to block air flowing through the heat exchanger from flowing into a void between the heat exchanger coil and the cover.

### Claim 2 (depends on 1)

The heat exchanger system of claim 1, wherein the vertical member and the base are integrated into a single piece.

### Claim 3 (depends on 2)

The heat exchanger system of claim 2, wherein the base is configured to receive the heat exchanger coil.

### Claim 4 (depends on 2)

The heat exchanger system of claim 2, wherein the base and the vertical member comprise a first cross sectional shape configured to conform to a second cross sectional shape of the void between the heat exchanger and the cover.

### Claim 5 (depends on 1)

The heat exchanger system of claim 1, wherein an angle between the vertical member and the base is between 80 degrees and 110 degrees.

### Claim 6 (depends on 1)

The heat exchanger system of claim 1, wherein an angle between the vertical member and the base is less than 90 degrees.

### Claim 7 (depends on 1)

The heat exchanger system of claim 1, wherein the first arm is configured to exert a first biasing force against a first surface of the heat exchanger coil and the second arm is configured to exert a second biasing force against a second surface of the heat exchanger coil.

### Claim 8 (depends on 1)

The heat exchanger system of claim 1, wherein the vertical member is coupled to the cover via a fastener.

### Claim 9

A heat exchanger, comprising:
a heat exchanger coil;
a cover disposed above the heat exchanger coil and comprising a venturi orifice configured to direct air through a center of the heat exchanger coil; and
a foam substructure disposed between the heat exchanger coil and the cover, wherein the foam substructure comprises a base adjacent to the heat exchanger coil and a vertical member adjacent to the cover, and wherein the foam substructure is configured to block air from flowing through a void between the heat exchanger coil and the cover.

### Claim 10 (depends on 9)

The heat exchanger of claim 9, wherein the base of the foam substructure comprises a first arm and a second arm, and wherein the first and second arms are configured to cooperatively apply a clamping force to the heat exchanger coil.

### Claim 11 (depends on 9)

The heat exchanger of claim 9, wherein the foam substructure is coupled to the cover via an interference fit.