# US 11,112,131 B2 · Heat source unit with corrugated bottom plate

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- Number: US 11,112,131 B2
- Document ID: US11112131B2
- Status: Granted
- Kind: B2
- Application number: 16/095,310
- Filed: 2017-04-17
- Published: 2019-05-09
- Granted: 2021-09-07
- Earliest claimed: 2016-04-21
- Assignees: Daikin Industries, Ltd.
- Applicants: Daikin Industries, Ltd.
- Inventors: Fumiaki Koike; Shigeki Kamitani; Daiki Hirawa
- Web page: https://patentgrep.com/patent/US11112131B2

## CPC

- F24F 1/36: Drip trays for outdoor units
- F24F 1/46: Component arrangements in separate outdoor units
- F24F 1/56: Casing or covers of separate outdoor units, e.g. fan guards
- F24F 13/22: Means for preventing condensation or evacuating condensate
- F24F 13/222: {for evacuating condensate}
- 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 source unit includes: a corrugated plate-like bottom frame in which ridges and furrows extend across the front and rear direction or across the right and left direction; and mounting feet. The mounting feet include: supports that support, from below, the furrows of supported ends of the bottom frame on sides that the ridges and the furrows can be seen; and walls disposed on outer sides of the supported ends and that extend upward from the supports. Water drainage passages, that drain water sticking to tops of the ridges of the supported ends to the supports, are disposed above the supports.

## Claims

### Claim 1

A heat source unit comprising:
a corrugated plate forming a bottom frame in which ridges and furrows extend across a front and rear direction or across a right and left direction; and
mounting feet comprising:
supports that are in direct contact with and that support, from below, the furrows at supported ends of the bottom frame on sides that the ridges and the furrows can be seen; and
walls disposed on outer sides of the supported ends and that extend from the supports in an upward direction from a level of the furrows toward the ridges, wherein
water drainage passages that drain water sticking to tops of the ridges at the supported ends to the supports are disposed above the supports, and
the water drainage passages include clearances formed, in the direction that the ridges and furrows extend, between outermost edges of the ridges at the supported ends and the walls.

### Claim 2 (depends on 1)

The heat source unit according to claim 1, wherein the clearances are 2 mm or greater.

### Claim 3 (depends on 1)

The heat source unit according to claim 1, wherein
the walls have abutting wall portions that abut against the supported ends and non-abutting wall portions that do not abut against the supported ends, and
the clearances are disposed between the supported ends and the non-abutting wall portions.

### Claim 4 (depends on 1)

The heat source unit according to claim 1, wherein the water drainage passages further comprise openings formed in the ridges at the supported ends, and the openings oppose the supports from above.

### Claim 5 (depends on 1)

The heat source unit according to claim 1, wherein the walls extend to a position higher than upper ends of the ridges at the supported ends.

### Claim 6 (depends on 1)

The heat source unit according to claim 1, wherein downward slopes heading toward the water drainage passages are formed in the supported ends.

### Claim 7

A heat source unit comprising:
a corrugated plate forming a bottom frame in which ridges and furrows extend across a front and rear direction or across a right and left direction; and
mounting feet comprising:
supports that are in direct contact with and that support, from below, the furrows at supported ends of the bottom frame on sides that the ridges and the furrows can be seen; and
walls disposed on outer sides of the supported ends and that extend from the supports in an upward direction from a level of the furrows toward the ridges, wherein
each wall and each support on the same side of the bottom frame are directly and continuously connected at the level of the furrows,
water drainage passages that drain water sticking to tops of the ridges at the supported ends to the supports are disposed above the supports, and
the water drainage passages include openings formed in the ridges at the supported ends, and the openings oppose the supports from above.