Coil support pad having condensate drainage functionality

Patent metadata

Field	Value
Publication number	US-10215507-B2
Application number	US-201514687572-A
Country	US
Kind code	B2
Filing date	Apr 15, 2015
Priority date	Apr 15, 2014
Publication date	Feb 26, 2019
Grant date	Feb 26, 2019

Abstract

The embodiments described herein are directed to a coil support pad for condensate drainage and a method of manufacturing the coil support pad. The coil support pad generally functions to provide support for outdoor coils and facilitate the drainage of condensate away from the coils.

First claim

What is claimed is:

1. A coil support pad for use in an outdoor unit that includes a bottom pan and an outdoor coil, comprising
a base including
a central portion having a first end and a second end,
a first arm portion that extends outwardly in the direction of a first axis from the first end of the central portion to a first terminal end of the first arm portion,
a second arm portion that extends outwardly in the direction of a second axis from the second end of the central portion to a second terminal end of the second arm portion, wherein the base is L-shaped and is curved at the central portion as viewed in top view such that the first and second axes form a relative angle α,
a top principal surface having a vertex and is sloped relative to the vertex, the top principal surface being patterned with a plurality of support protrusions, and the top principal surface having first and second support features that protrude upwardly from the top principal surface such that the first and second support features are disposed a greater distance from the bottom principal surface than the plurality of support protrusions, and
a bottom principal surface having a mating feature,
wherein the first and second support features are provided on the top principal surface of the first and second terminal ends, respectively, wherein each of the support features has a shape as viewed in top view that follows an outline of a cross-section of a coil header so that the support features are configured to fix a location of each of the respective coil headers, and
wherein the base is shaped so that the base as viewed in top view follows the outline of the outdoor coil and wherein the support protrusions on the top principal surface are configured to provide continuous support for the outdoor coil so as to allow a compressive force to maintain continuous contact between the outdoor coil and the coil support pad along a length of the outdoor coil.

2. The coil support pad of claim 1 , wherein the first and second axes are on the same plane and perpendicular to one another.

3. The coil support pad of claim 1 , wherein the coil support pad is substantially continuous.

4. The coil support pad of claim 1 , wherein the one or more support features are configured to localize and/or secure the outdoor coil.

5. The coil support pad of claim 1 , wherein the one or more support features is U-shaped as viewed in top view.

6. The coil support pad of claim 1 , wherein the mating feature of the bottom principal surface is configured to mate with a corresponding mating feature on a bottom pan.

7. The coil support pad of claim 1 , wherein the bottom principal surface further comprises a slotted feature that is configured to allow debris and/or liquid to pass through.

8. The coil support pad of claim 1 , wherein the top principal surface is sloped at an angle of between about 2 to about 30 degrees relative to a horizontal axis that passes through the vertex.

9. The coil support pad of claim 1 , wherein each of the support protrusions has a cylindrical shape and is substantially circular as viewed in top view.

10. The coil support pad of claim 1 , wherein the coil support pad is modular.

11. The coil support pad of claim 1 , wherein the mating feature of the bottom principal surface is a deboss or emboss feature.

12. The coil support pad of claim 1 , wherein the support protrusions form a pattern.

13. The coil support pad of claim 12 , wherein the pattern of the support protrusions is uniform.

14. The coil support pad of claim 1 , wherein the coil support pad is made of Styrofoam and/or expanded polypropylene.

15. An outdoor air conditioning unit, comprising
a top cover,
a bottom plate,
a microchannel coil, and
a coil support pad in accordance with claim 1 , the coil support pad being physically separate from the microchannel coil.

16. A method of assembling an outdoor unit, comprising
assembling the coil support pad of claim 1 on a base pan by mating the mating feature on the coil support pad with a corresponding mating feature on the base pan,
securing an outdoor coil on the coil support pad by securing the outdoor coil to the support feature of the coil support pad,
applying a gasket on a top end of the outdoor coil, and
installing a top cover on the outdoor coil so that a compressive force maintains continuous contact between the outdoor coil and the coil support pad along a length of the outdoor coil.

17. The coil support pad of claim 1 , wherein the top principal surface is substantially continuous and extends from the first terminal end to the second terminal end across the first arm portion, the central portion and the second arm portion.

18. The coil support pad of claim 1 , wherein the shape as viewed in top view of each of the support features is U-shaped.

19. The coil support pad of claim 1 , wherein the top principal surface is sloped downward from the vertex such that drainage of liquid is facilitated through the plurality of support protrusions.

Assignees

• Trane Int Inc

Inventors

• Mastroianni Scott A
• Menhennett Chris

Classifications

• F28D2021/0068

  for refrigerant cycles · CPC title

• F24F1/36

  Drip trays for outdoor units · CPC title

• F28F9/013 Primary

  for tubes or tube-assemblies · CPC title

• F28F9/001

  Casings in the form of plate-like arrangements; Frames enclosing a heat exchange core · CPC title

• F28F17/005

  Means for draining condensates from heat exchangers, e.g. from evaporators (F28B9/08 takes precedence) · CPC title