|
(11) | EP 3 006 856 A2 |
(12) | EUROPEAN PATENT APPLICATION |
|
|
|
|
|||||||||||||||||||||||||||
(54) | INDOOR UNIT AND AIR CONDITIONER |
(57) Provided is an indoor unit (20) that has a shaft-portion air shielding structure
of a cross-flow fan which does not adversely affect the vibration-isolating performance
of a vibration-isolating member. In an indoor unit, a ring-shaped protruding portion
(74) that is provided at a side-wall surface (73) of the motor-installing portion
(70) so as to protrude therefrom in a motor-installing direction and a vibration-isolating-member
receiving portion (44) in which an end portion of the motor bracket (40) is bent in
a direction of a motor-shaft center are provided. Between an outer-circumferential
surface (74a) of the ring-shaped protruding portion (74) and a distal-end surface
(44a) of the vibration-isolating-member receiving portion (44), a minute gap (S) is
formed, and a protruding height (h) of the ring-shaped protruding portion (74) is
set so as not to be in contact with a vibration-isolating member (32).
|
{Technical Field}
{Background Art}
{Citation List}
{Patent Literature}
{Summary of Invention}
{Technical Problem}
{Solution to Problem}
{Advantageous Effects of Invention}
{Brief Description of Drawings}
{Fig. 1} Fig. 1 is a diagram showing an embodiment of an indoor unit and an air conditioner of the present invention, in which (a) is an enlarged sectional view of relevant portions, showing a first aspect related to a shaft-portion air shielding structure of a cross-flow fan and (b) is a diagram showing, in enlargement, a portion A in (a).
{Fig. 2} Fig. 2 is a diagram showing a state in which a motor is attached to a base main unit of the indoor unit.
{Fig. 3} Fig. 3 is a side view showing the base main unit viewed from the motor-attaching direction.
{Fig. 4} Fig. 4 is a diagram showing another embodiment (second aspect) related to the shaft-portion air shielding structure of the cross-flow fan shown in Fig. 1(b).
{Fig. 5} Fig. 5 is a perspective view showing an example configuration of the air conditioner.
{Description of Embodiments}
{Reference Signs List}
a casing (21);
a base main unit (22) provided in the casing (21);
a cylindrically-shaped motor-shaft pathway (60) that is provided at a side wall (22a) of the base main unit (22) on a motor-installing side thereof so as to protrude therefrom;
a heat exchanger (26) that is installed in the base main unit (22);
a motor-driven cross-flow fan (28) that is supported by the base main unit (22) in a rotatable manner, and that blows conditioned air, which is air introduced from an indoor space and made to pass through the heat exchanger (26), into the indoor space;
a motor (30) that is mounted to a motor-installing portion (70) provided in the base main unit (22) via a motor bracket (40) and which comprises an output shaft (31) which passes through the motor-shaft pathway (60), and which is coupled with the cross-flow fan (28); and
a vibration-isolating-member receiving portion (44) in which an end portion of the motor bracket (40) is bent in a direction of a motor-shaft center,
wherein, between an outer-circumferential surface (60a) of the motor-shaft pathway (60) and a distal-end surface (44a) of the vibration-isolating-member receiving portion (44), a minute gap (S) in which the outer-circumferential surface can be fitted to an inner side of the distal-end surface (44a) is formed, and
a distal-end surface (60b) of the motor-shaft pathway (60) is set so as not be in contact with a vibration-isolating member (32) of the motor (30).
a casing (21);
a base main unit (22) provided in the casing (21);
a cylindrically-shaped motor-shaft pathway (60) that is provided at a side wall (22a) of the base main unit (22) on a motor-installing side thereof so as to protrude therefrom;
a motor-installing portion (70) that is provided at a motor-side end portion of the motor-shaft pathway (60);
a heat exchanger (26) that is installed in the base main unit (22);
a motor-driven cross-flow fan (28) that is supported by the base main unit (22) in a rotatable manner, and that blows conditioned air, which is air introduced from an indoor space and made to pass through the heat exchanger (26), into the indoor space;
a motor (30) that is mounted to the motor-installing portion (70) via a motor bracket (40) and which comprises an output shaft (31) that passes through the motor-shaft pathway (60) and which is coupled with the cross-flow fan (28);
a ring-shaped protruding portion (74) that is provided so as to protrude from a side-wall surface (73) of the motor-installing portion (70) in a motor-installing direction; and
a vibration-isolating-member receiving portion (44) in which an end portion of the motor bracket (40) on a base-main-unit side is bent in a direction of a motor-shaft (31) center,
wherein, between an outer-circumferential surface (74a) of the ring-shaped protruding portion (74) and a distal-end surface (44a) of the vibration-isolating-member receiving portion (44), a minute gap (S) in which the outer-circumferential surface (74a) can be fitted to an inner side of the distal-end surface (44a) is formed, and
a protruding height (h) of the ring-shaped protruding (74) portion is set so as not to be in contact with a vibration-isolating member (32) of the motor (30).
an indoor unit (20) according to any one of Claims 1 to 3;
an outdoor unit (10) that has a compressor (12) for compressing refrigerant and an outdoor heat exchanger (13) that performs heat exchange between the refrigerant and outdoor air; and
a refrigerant pipe (50) that connects the indoor unit (20) and the outdoor unit (10) and that circulates the refrigerant between the indoor unit (20) and the outdoor unit (10).
REFERENCES CITED IN THE DESCRIPTION
Patent documents cited in the description