Outdoor unit of air-conditioning apparatus having terminal-block mounting portion with terminal-block seat

Patent metadata

Field	Value
Publication number	US-11306925-B2
Application number	US-201816975442-A
Country	US
Kind code	B2
Filing date	Apr 10, 2018
Priority date	Apr 10, 2018
Publication date	Apr 19, 2022
Grant date	Apr 19, 2022

Abstract

An outdoor unit of an air-conditioning apparatus has a structure that enables a terminal block to be added on a front side that a worker can easily contact, without greatly changing the location of an existing terminal block and the basic shape of a mounting portion. In a casing of the outdoor unit, a heat exchanger, an outdoor fan, a compressor, and an electrical component are provided. The outdoor unit includes: terminal blocks to be connected to the electrical component; and a terminal-block mounting portion facing from the inside of the casing toward the outside thereof. The terminal blocks are arranged in the height direction of the terminal-block mounting portion, and include first and second terminal blocks on a lower side and an upper side, respectively. The second terminal block is mounted on a terminal-block seat on the terminal-block mounting portion. The above seat includes a mounting portion on which the second terminal block is mounted, and a fixed portion contacting the terminal-block mounting portion. The fixed portion is smaller than the mounting portion, and the mounting portion protrudes from the fixed portion toward the first terminal block.

First claim

The invention claimed is:

1. An outdoor unit of an air-conditioning apparatus, which is provided with a heat exchanger, an outdoor fan, a compressor, and an electrical component that are provided in a casing of the outdoor unit, the outdoor unit comprising:
terminal blocks to be connected to the electrical component; and
a terminal-block mounting portion provided to face from an inside of the casing toward an outside of the casing,
wherein the terminal blocks are arranged in a height direction of the terminal-block mounting portion, and include
a first terminal block located on a lower side of the terminal-block mounting portion, and
a second terminal block located on an upper side of the terminal-block mounting portion,

wherein the second terminal block is mounted on a terminal-block seat provided on the terminal-block mounting portion,
wherein the terminal-block seat includes
a mounting portion on which the second terminal block is mounted, and
a fixed portion that is in contact with the terminal-block mounting portion,

wherein the fixed portion is smaller in area than the mounting portion,
wherein the mounting portion is formed in such a manner as to protrude from the fixed portion toward the first terminal block, and
wherein the mounting portion protrudes further toward the first terminal block than the fixed portion protrudes toward the first terminal block.

2. The outdoor unit of the air-conditioning apparatus of claim 1 , the second terminal block having a bottom facing the terminal-block mounting portion, the bottom having end portions including one end portion that is closest to the first terminal block, the first terminal block having a top on a side opposite the terminal-block mounting portion, wherein a distance from the terminal-block mounting portion to the one end portion is greater than a height of the top of the first terminal block from the terminal-block mounting portion.

3. The outdoor unit of the air-conditioning apparatus of claim 1 , wherein the fixed portion is located above the first terminal block in a height direction of the casing.

4. The outdoor unit of the air-conditioning apparatus of claim 1 , wherein a line connected to the first terminal block extends between the terminal-block seat and the first terminal block.

5. The outdoor unit of the air-conditioning apparatus of claim 4 , wherein the line connected to the first terminal block extends through a region that is surrounded by a side of the terminal-block seat that faces the first terminal block, part of the mounting portion that protrudes from the fixed portion, the terminal-block mounting portion, and a side of the first terminal block that faces the terminal-block seat.

6. The outdoor unit of the air-conditioning apparatus of claim 1 , wherein the terminal-block seat includes a guard portion configured to cover a line-fixing screw of the second terminal block.

7. The outdoor unit of the air-conditioning apparatus of claim 6 , wherein the guard portion includes a knockout portion at a side portion of the terminal-block seat.

8. The outdoor unit of the air-conditioning apparatus of claim 6 , wherein on the guard portion, a connection destination of a line to be connected to the line-fixing screw is indicated.

Assignees

• Mitsubishi Electric Corp

Inventors

• Kitabatake Yo
• Hata Shigeru

Classifications

• F24F1/22 Primary

  Arrangement or mounting thereof · CPC title

• F24F1/20

  Electric components for separate outdoor units · CPC title