JPH0116986Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a heat exchange unit in an air conditioner that performs cooling and heating.

(Prior Art) Conventionally, air conditioners as shown in FIGS. 2 and 3 are known. That is, the outdoor heat exchange unit 10
and an indoor heat exchange unit 20 disposed in a non-residential area of the building, such as the ceiling, are connected by a cooling/heat medium pipe 30, and the indoor heat exchange unit 20 and the air blowing grill 30 are connected to each other by an air duct 50a. ,50
b, 50c, and 50d. Furthermore, the indoor heat exchange unit 20 includes a rectangular box-shaped chamber 21, a pair of air duct connection ports 22a, 22b and 22c, 22d provided on one side wall 21a and the other side wall 21b of the chamber 21, respectively;
One side wall 21a and the other side wall 2 in the chamber 21
1b, and a pair of air duct connection ports 2 on one side wall 21a on the side of the indoor heat exchanger 24.
It consists of a damper 25 that opens and closes the air duct connection ports 22a, 22b provided at the intermediate portions of the air ducts 2a, 22b. Note that 26 is a motor connected to the upper end of the rotation shaft 25a of the damper 25.

According to this air conditioner, the Sirotskov fan 2
3, the air ducts 50a, 50b
through the air duct connection ports 22a, 22b,
Indoor air is introduced into the chamber 21, and the introduced air passes through the indoor heat exchanger 24 for heat exchange. The heat exchange air is transferred to another air duct connection port 22.
The air ducts 50c, 50 through c, 22d
d, and is further sent into the room from the air blowing grill 40. As a result, each room facing the air blowing grill 40 is cooled and heated. At this time, when the damper 25 is operated by the motor 26 and one of the air duct connection ports 22a or 22b is closed, one of the rooms can be cooled or heated.

(Problems to be Solved by the Invention) In the conventional heat exchange unit 20, the air sent by the Sirotskov fan 23 is diffused into the chamber 21, and the pair of air duct connection ports 22b, 22c
It is difficult to distribute the damper 25 evenly, and the rotation angle of the damper 25 must be 180 degrees at the maximum.

(Purpose of the invention) In view of the above-mentioned problems, the present invention provides a heat exchange unit that can evenly distribute air to a pair of air duct connection ports and that can also reduce the rotation angle of the damper.

(Means for Solving the Problems) In order to achieve the above object, the present invention provides a pair of air duct connection ports 22a, 22b on one side wall 21a of the rectangular box-shaped chamber 21 and the other side wall 21b opposite thereto. , 22c, 22d are arranged in parallel, and the one side wall 21a and the other side wall 2 in the chamber 21
In the heat exchange unit in which a blower 23 and a heat exchanger 24 are arranged between the side walls 21a and 1b, the one side wall 21a
and the other side wall 21b is the intermediate portion 21 of the pair of air duct connection ports 22a, 22b, 22c, and 22d.
c, 21d are bent or curved so as to protrude outward, and the air duct connection port 22 is provided in the intermediate portions 21c, 21d of the one side wall 21a or the other side wall 21b.
A, 22b, 22c, 22d are characterized by being provided with a damper 26 for opening and closing.

(Function) According to the present invention, since the one side wall and the other side wall are bent or curved so that the middle part of the pair of air duct connecting ports protrudes outward, air is gradually narrowed down and connected to the pair of air duct connecting ports. will be introduced in Furthermore, the distance between the damper and the pair of air duct connection ports becomes smaller.

(Embodiment) FIG. 1 shows an embodiment of the present invention, and the same components as in the conventional example will be described with the same reference numerals.
That is, 20 is a heat exchange unit, 21 is a rectangular box-shaped chamber, 21a and 21b are both longitudinal side walls of the chamber 21, and 22a to 22d are each side wall 21.
air duct communication ports provided near the center of the chambers 21a and 21b, 23 a sirotsko fan arranged near the other side wall 21b within the chamber 21, and 24 arranged near the one side wall 21a within the chamber 21. An indoor heat exchanger, 25 is a rotatable damper that controls opening and closing of each air duct communication port 22a, 22b, and 26 is a rotatable damper that controls the opening and closing of each air duct communication port 22a, 22b;
The motors 50a to 50d rotationally drive the air ducts connected to the respective air duct communication ports 22a to 22d.

The one side wall 21a of the chamber 21 is an intermediate portion 21c of the air duct communication ports 22a, 22b.
, the one side wall 21b is connected to the air duct communication port 2.
The intermediate portions 21d of 2c and 22d are each bent at an acute angle so as to protrude outward, and the intermediate portions 21c
is provided with the damper 25.

According to the present invention, when the Shirotzko fan 23 operates, indoor air is introduced into the chamber 21 from the air ducts 50a, 50b through the air duct connection ports 22a, 22b. Since the intermediate portion 21c is bent at an acute angle so as to protrude outward, the introduced air flows through the chamber 21 so as to be diffused from the central portion of the one side wall 21a to the entire indoor heat exchanger 24. do. Thereby, heat exchange of the introduced air is effectively performed in the indoor heat exchanger 24.

Furthermore, the air that has undergone heat exchange is sent to the air duct connection ports 22c and 22d, since the intermediate portion 21d of the air duct communication ports 22c and 22d is bent at an acute angle so as to protrude outward. The air is guided by the other side wall 21b toward the air duct connection ports 22c, 22d near the center while being narrowed down, and smoothly flows into the air duct connection ports 22c, 22d.

Further, the damper 25 is connected to the air duct communication ports 22a, 22 which are bent at an acute angle in the one side wall 21a.
Since the damper 25 is provided at the intermediate portion 21d of the damper 25, the rotation angle of the damper 25 is small, and the driving time of the motor 26 when the damper 25 is operated is shortened, resulting in less power consumption.

In addition, in the embodiment, each of the side walls 21a, 21b
Although it is formed by bending it, the same effect can be obtained when it is formed by bending it.

(Effects of the Invention) As explained above, the present invention provides a pair of air duct connection ports in parallel on one side wall of a rectangular box-shaped chamber and the other side wall opposite thereto, and and a heat exchange unit in which a blower and a heat exchanger are disposed between the other side walls, wherein the one side wall and the other side wall are bent or curved so that an intermediate portion of the pair of air duct connection ports protrudes outward; In addition, since a damper for opening and closing the air duct connection port is provided in the middle of one side wall or the other side wall, the suction side air is diffused throughout the heat exchanger even during single-room operation, and heat exchange is prevented. The finished air is gradually narrowed down and introduced into the air duct connection port on the other side wall of the pair, reducing ventilation resistance.
It has the advantage of being evenly distributed to each air duct connection port. Furthermore, since the distance between the damper and the pair of air duct connection ports is reduced, the opening/closing operation of the damper is also reduced, and the energy consumption of the drive source is also advantageously reduced.

[Brief explanation of drawings]

Fig. 1 is an end view of the heat exchange unit according to the present invention seen from above, Figs. 2 and 3 show conventional examples, Fig. 2 is a perspective view of the air conditioner, and Fig. 3 is a heat exchange unit. FIG. 3 is a perspective view of the unit with the upper part opened. In the figure, 20...heat exchange unit, 21...chamber, 21a...one side wall, 21b...other side wall, 2
1c, 21d... middle part, 22a, 22b, 22
c, 22d...Air duct connection port, 23...Blower, 24...Heat exchanger, 25...Damper.

Claims (1)

[Scope of utility model registration request] A pair of air duct connection ports are arranged in parallel on one side wall of a rectangular box-shaped chamber and the other side wall opposite thereto, and a blower and a heat exchanger are arranged between the one side wall and the other side wall in the chamber. In the heat exchange unit, the one side wall and the other side wall are bent or curved so that the middle part of the pair of air duct connection ports protrudes outward, and the middle part of the one side wall or the other side wall has a corresponding part. A heat exchange unit characterized by being equipped with a damper that opens and closes an air duct connection port.