# US 4,391,322 A · Wire guide for use with a heat exchange unit

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- Number: US 4,391,322 A
- Document ID: US4391322A
- Status: Granted
- Kind: A
- Application number: 06/202,980
- Filed: 1980-11-03
- Granted: 1983-07-05
- Earliest claimed: 1980-11-03
- Assignees: Carrier Corporation
- Inventors: Joseph A. Ciarlei; Curtis L. Tobin; William B. Jennings
- Web page: https://patentgrep.com/patent/US4391322A

## CPC

- F24F 13/00: Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- Y10S 165/304: Axial impeller
- 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)
- Y10S: TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS

## Abstract

A wire guide assembly for use in an air conditioning system having a heat exchange unit. A wire guide assembly acts to provide a secure cavity through which wires emanating from the control area and flowing to a separately located electrical component may pass. The wire guide assembly serves to protect the wires from engagement with either a rotating fan or a heat exchanger. The wire guide assembly includes a control area member having a T-shaped opening, a retainer and a cover slidably engaged to the retainer.

## Claims

### Claim 1

A heat exchange unit comprising:
support means for supporting the unit;
a heat exchanger mounted to the support means and extending about at least a portion of the periphery of the unit;
a fan for circulating air in heat exchange relation with the heat exchanger;
means defining a control area circumferentially spaced about the fan and adjacent the heat exchanger wherein at least one electrical component of the heat exchange unit may be mounted, said means additionally defining a wire guide opening; and
a wire guide connected to extend through the wire guide opening and between the fan and the heat exchanger, said wire guide defining a wire securing cavity and including means for connecting the wire guide to the means defining the control area.

### Claim 2 (depends on 1)

The apparatus as set forth in claim 1 wherein the wire guide comprises a retainer in a U-shaped configuration and a cover adapted to be secured to the retainer to form the wire securing cavity.

### Claim 3 (depends on 2)

The apparatus as set forth in claim 2 wherein the means defining the control area comprises a fan orifice annular in configuration having a U-shaped cross section within which the control area is located, and further comprising a fan mounted to revolve within the fan orifice and wherein the wire guide extends from an opening in the fan orifice between the fan and the heat exchanger.

### Claim 4 (depends on 1)

The apparatus as set forth in claim 1 wherein the wire guide comprises a retainer having a retainer back wall, two retainer side walls attached to each edge of the retainer back wall, a fastening flange attached to the retainer back wall for securing the retainer to the means defining a control area and a cover adapted to be secured to the two retainer side walls to form the wire securing cavity between the cover and the retainer.

### Claim 5 (depends on 4)

The apparatus as set forth in claim 4 wherein each retainer side wall has extending therefrom a retainer rail which is generally planar with the retainer back wall and wherein the cover includes a cover hook flange on each edge thereof, said cover hook flanges engaging the retainer rails to slidably secure the retainer to the cover.

### Claim 6 (depends on 5)

The apparatus as set forth in claim 5 wherein the wire guide opening has a narrow portion through which the cover is inserted and connected to the narrow portion a wide portion through which the retainer with the retainer hook flanges may be inserted.