JPH08278038A - Indoor unit for air conditioner and assembling method thereof - Google Patents

Abstract

PURPOSE: To permit the piping work of a refrigerant pipeline, connected to one side of a heat exchanger 3, easily and quickly upon assembling an indoor unit. CONSTITUTION: A main body case 30 is formed by dividing it into a ventilating passage side case 31 and a control room side case 32 while a heat exchanger 3 as well as a cross flow fan 4 are installed in the ventilating passage side case 31 to receive them and the driving motor 35 for the cross flow fan 4 as well as a control box 36 are installed in the control room side case 32 to receive them. The ventilating passage side case 31 and the control room side case 32 are connected and integrated to assemble the main body case 30.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit for an air conditioner and a method for assembling the indoor unit.

[0002]

2. Description of the Related Art An example of a conventional air conditioner indoor unit is shown in FIGS. As shown in FIG. 2, the fan casing 1 and a front panel 2 detachably coupled to the front side of the fan casing 1 constitute a box-shaped main body case 20. The inside of the main body case 20 is partitioned by a partition wall 21 into left and right sides. The ventilation passage 12 is limited on the left side of the partition wall 21, and the control chamber 22 is limited on the right side.

As shown in FIG. 3, a heat exchanger 3 is arranged in the ventilation passage 12 so as to face the suction grille 10, and a through-flow fan 4 is located downstream of the heat exchanger 3. It is arranged. Horizontal flaps 6a and 6b and a louver 7 are provided at the air outlet 5 formed in the lower portion of the front panel 2. A controller, a motor for driving the once-through fan 4, and the like are arranged in the control chamber 22.

Reference numeral 8 is a drain pan arranged under the heat exchanger 3, 9 is an air filter arranged on the upstream side of the heat exchanger 3, and 11 is an installation plate fixed to the upper portion of the indoor wall surface. 1
3 a and 13 b are a pair of refrigerant pipes connected to one side of the heat exchanger 3, and are covered with a heat insulating material 14. Reference numeral 15 is a drain hose whose one end is connected to the drain pan 8.
The refrigerant pipes 13a, 13b and the drain hose 15 are drawn out through a space 16 formed between the lower rear surface of the main body case 1 and the installation plate 11 as shown in the drawing.

During operation of the air conditioner, the once-through fan 4 rotates, and the refrigerant from the outdoor unit (not shown) circulates in the heat exchanger 3. Then, the indoor air is sucked into the ventilation passage 12 from the suction grill 10 and, when passing through the air filter 9, the dust contained therein is removed. And heat exchanger 3
Is cooled or heated by exchanging heat with the refrigerant in the process of flowing through,
Next, after being sucked into the once-through fan 4 and biased, the blowout direction is regulated by the louver 7 and the horizontal flaps 6a and 6b, and the blowout air is blown out into the room.

[0006]

When assembling the above-mentioned conventional indoor unit, after the flow-through fan 4, the motor, the horizontal flaps 6a and 6b, the louver 7, the drain pan 8 and the like are attached to the fan case 1, the heat exchanger 3 is attached. There is a problem that this work is troublesome and time consuming because the refrigerant pipes 13a and 13b having one end connected thereto are routed behind the fan case 1 after passing through the controller and the motor in the control chamber 22. It was

[0007]

SUMMARY OF THE INVENTION The present invention has been invented to solve the above-mentioned problems, and the gist of the first invention is that the inside of a box-shaped body case is inside the control room and inside the room. It is divided into a ventilation passage side through which air flows, and a heat exchanger in which a refrigerant pipe is connected to at least one side in the ventilation passage and a through-flow fan is installed and installed on the downstream side of the heat exchanger, and the control room side is also provided. In an indoor unit of an air conditioner in which a drive motor for a once-through fan and a control box are housed and installed, an air passage-side case for housing and installing the heat exchanger and a once-through fan in the main body case and for driving the once-through fan Separately formed into a control room side case that houses the motor and control box, and these ventilation path side case and control room side case are combined and integrated In the indoor unit of an air conditioner, characterized in that the.

The gist of the second invention is that a box-shaped main body case is divided into a control chamber side and an air passage side through which indoor air flows, and a refrigerant pipe is provided on at least one side in the air passage. An indoor unit of an air conditioner in which a connected heat exchanger and a once-through fan are installed and installed on the downstream side of the heat exchanger, and a drive motor and a control box for the through-flow fan are installed and installed on the control room side. , The main body case is divided into a ventilation passage side case and a control chamber side case, the heat exchanger and the cross-flow fan are provided in the ventilation passage side case, and the through-flow fan drive motor and control are provided in the control chamber side case. After storing and installing each box, assemble the ventilation path side case and the control room side case by integrating them. In assembling method of the indoor unit of an air conditioner according to claim.

[0009]

In the present invention, the heat exchanger and the cross-flow fan are housed and installed in the air passage-side case, and the drive motor for the cross-flow fan and the control box are housed and installed in the control chamber-side case. Assemble the main body case by connecting and integrating the control room side case.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENT One embodiment of the present invention is shown in FIG. The main body case 30 includes a ventilation passage side case 31 and a control room side case 32. The heat exchanger 3, the cross-flow fan 4, and the drain pan 8 are provided in the ventilation path side case 31 at the right end opening 3 thereof.
It is stored and installed by inserting from 3. And
Refrigerant pipes 13a, 13b connected to the right side of the heat exchanger 3
The heat insulating material 14 that covers the drain hose 15 and the drain hose 15 connected to the drain pan 8 are disposed in a recess 34 formed in the lower portion of the back surface of the ventilation passage side case 31.

On the other hand, a motor 35 for driving the flow-through fan 4 and a control box 36 are housed in the control chamber side case 32. Thereafter, the air passage-side case 31 and the control chamber-side case 32 are integrated with each other by connecting them to each other to form the main body case 30.
Is assembled.

Reference numeral 37 is a suction port, and the heat exchanger 3 is installed so as to face the suction port. Reference numeral 38 denotes an outlet, to which the louver 7 and the horizontal flaps 6a and 6b are attached before or after the case 31 is connected. After connecting the case 31 and the case 32, the filter 9 and the suction grill 10 are assembled.

[0013]

According to the present invention, the main body case is divided into the ventilation passage side case and the control chamber side case, and the heat exchanger is inserted into the ventilation passage side case from one end opening thereof before being connected to the control chamber side case. Is stored and installed, the work of laying the refrigerant pipe connected to one side of the heat exchanger can be easily performed.

Further, in the case of repairing or replacing each part installed in the main body case, the ventilation passage side case and the control side case can be divided, so that each part can be repaired and replaced.
The replacement work can be performed easily and quickly.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is an exploded perspective view of a fan case and a front panel in a conventional indoor unit.

FIG. 3 is a vertical sectional view of a conventional indoor unit.

[Explanation of symbols]

 30 Body Case 31 Ventilation Side Case 32 Control Room Side Case 3 Heat Exchangers 13a, 13b Refrigerant Pipe 4 Throughflow Fan 35 Drive Motor 36 Control Box

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Kenichi Miyazawa Kenichi Miyazawa 1-chome, Asahi-cho, Nishibiwajima-cho, Nishikasugai-gun, Aichi Mitsubishi Heavy Industries, Ltd. Air Conditioning Factory

Claims (2)

[Claims] 1. A heat exchanger in which a box-shaped main body case is divided into a control chamber side and a ventilation passage side through which indoor air flows, and a refrigerant pipe is connected to at least one side in the ventilation passage, and a heat exchanger for the heat exchanger. An air conditioner indoor unit in which a once-through fan is housed and installed on the downstream side of the exchanger, and a drive motor and a control box for the once-through fan are housed and installed on the control room side. And a ventilation passage side case for storing and installing the once-through fan and a control chamber side case for storing and installing the above-mentioned cross-flow fan drive motor and control box, and these ventilation passage side case and control chamber side case are combined and integrated. An indoor unit for an air conditioner, which is characterized in that 2. A heat exchanger in which a box-shaped body case is divided into a control room side and an air passage side through which indoor air flows, and a refrigerant pipe is connected to at least one side in the air passage, and a heat exchanger for the heat exchanger. An air conditioner indoor unit in which a once-through fan is housed and installed on the downstream side of the exchanger, and a drive motor and a control box for the once-through fan are housed and installed on the control room side. The heat exchanger and the cross-flow fan are formed separately in the control room side case, and the drive motor and the control box for the cross-flow fan are housed and installed in the control chamber side case. An indoor unit for an air conditioner, characterized in that the ventilation passage side case and the control room side case are combined and assembled. Tsu door of the assembly method.