JPH07120002A - Air conditioner - Google Patents

Abstract

PURPOSE:To make it hardly possible for the closing plate for the opening in a cover to be moved out of place or come off. CONSTITUTION:A cover is formed as a separate body in relation to a supporting device 21. In this cover an opening 12 for fitting a boss and an axle together and for their disassembly is provided and this opening 12 is closed by a closing plate 20. As a result, in attaching the supporting device the closing plate 20 does not touch other parts so that it hardly occurs for the closing plate 20 to be moved out of place or come off.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner provided with a blower fan and a motor for driving the fan in a housing.

[0002]

2. Description of the Related Art As a conventional example of this type of air conditioner, there is one disclosed in Japanese Utility Model Publication No. 54-26678. The air conditioner described in this publication includes a heat exchanger, a blower fan arranged on the back side of the heat exchanger, and a motor for driving the blower fan in one housing. is there.

In such an air conditioner, the connecting portion between the blower fan and the motor is generally covered with a cover.

[0004]

In the general air conditioner described above, an opening is formed in the cover, and the opening is formed integrally with the motor support. Was covered with. Then, an opening used for attaching and detaching the boss of the blower fan and the shaft of the motor is formed in this cover, and a closing plate for closing the opening is fixed to the cover with tape or the like. . For this reason, when it is peeled off or attached several times, the adhesive force gradually becomes weak, and the blocking plate may not be attached.

Further, since the blower fan is arranged on the rear side of the heat exchanger, the cover is attached so as to be inclined from the side of the heat exchanger, so that it is easy to hit the heat exchanger and the closing plate. It was easy to slip or flip over. For this reason, the air blowing path on the side of the air blowing fan communicates with the outside of the air blowing path, causing air leakage and entry, resulting in an increase in noise.

The present invention provides an air conditioner in which the closing plate is unlikely to be displaced or turned over.

[0007]

A blower fan, a motor for driving the blower fan, and a support for supporting the motor are provided in a housing, and a boss of the blower fan and a shaft of the motor are provided. In the air conditioner in which the connecting portion between the boss and the shaft is covered with a cover, the cover is formed separately from the support, and the boss and the shaft are formed on the cover. An opening for attaching and detaching is provided, and the opening is closed with a closing plate.

Further, a positioning portion for the closing plate is formed on the peripheral portion of the opening.

Further, the opening portion is provided with a support portion of a positioning tool for determining the positions of the boss of the blower fan and the shaft of the motor.

[0010]

In this air conditioner, the cover is formed separately from the support, and the opening for attaching and detaching the boss and the shaft is provided, and the opening is closed by the closing plate. Since the closing plate does not hit any other part during installation, it is difficult for the closing plate to shift or come off.

Also, in the case where the positioning portion for the closing plate is formed in the opening, the position of the closing plate is determined by the positioning portion.

Further, in the case where the support portion of the positioning tool for determining the positions of the blower fan and the motor is provided on the peripheral portion of the opening, the positions of the boss of the blower fan and the shaft of the motor can be easily determined. .

[0013]

Embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, reference numeral 1 denotes an indoor unit that is connected to an outdoor unit (not shown) (not shown) by a refrigerant pipe, and its housing has a rear panel 2
And a front panel 3 and a suction grill 4 attached to the front panel. Inside the enclosure,
Plate fin type heat exchanger 5 for controlling indoor air temperature
A cross flow fan (blower fan) 6 for supplying indoor air to this heat exchanger, vertical blades 7, and horizontal blades 8.
And a drain pan 9 for receiving drain from the heat exchanger. As shown in FIG. 1, the fan is arranged on the back side of the heat exchanger 5.

In FIG. 2, reference numeral 10 denotes a cover provided on the rear panel 2, and this cover has an opening 12 for connecting a fan boss and a motor shaft.

Reference numeral 11 is a motor for driving the fan 6, 11A is a shaft of this motor, and 13 is an electrical equipment box (supporting equipment) which also serves as a supporting means for holding down the motor 11, and an electrical equipment substrate (not shown). A terminal plate (not shown) to which the inter-unit wiring is connected is provided. Reference numeral 30 is a cushion rubber attached to the motor 11.

In FIGS. 3 and 4, reference numeral 20 denotes a closing plate, which is made of foamed polyethylene expanded 40 times and has a thickness of 5 mm. Although the size of this closing plate is set to be 1 mm above and below the opening, and 1 mm to the left and right, it is 40 times foamed polyethylene, so it easily shrinks.
The closing plate fits in the opening. In the opening 12,
A rib 12A protruding so as to surround the periphery of the closing plate, and a support surface 12B connected to the rib and supporting the periphery of the closing plate,
And a support portion 12C of the positioning tool 21 are formed.

The positioning tool 21 is a shaft 11A of the motor 11.
Of the motor supporting portion 21A which is in contact with the outer periphery of the fan, the fan supporting portion 21B which is positioned so that the end surface of the boss 6A of the fan 6 is in contact, the grip portion 21C gripped by the operator, and the supporting surface 1
The support surface 21D which contacts 2B is provided.

The thickness T of the positioning tool 21 is determined by the rib 1
It is set to be the same as the dimension L between 2A and the rib 12C. The dimension M is set to be the same as the dimension between the ribs 12C (not shown). Therefore, the positioning tool 21
If it is attached to the opening 12 so as to be in contact with the support 12C, it will fit without a gap (see FIG. 4), and it will not wobble.

That is, the rib 12A, the support surface 12B, and the rib 1
2C constitutes the positioning portion of the closing plate 20 and the support portion of the positioning tool 21.

The air conditioner thus constructed is assembled as follows. The cushion rubber 30 is attached to the motor 11, and the motor 11 is fitted into the recess of the rear panel 3. Next, the shaft 11A of the 6A motor 11 is attached so that it fits into the boss of the fan 6. Then, a bearing is attached to the shaft (not shown) on the side opposite to the boss 6A, is attached to a bearing recess (not shown), and is held by a bearing retainer (not shown).

Then, with the positioning tool 21, the fan 6
And the motor 11 are positioned. In this work, the positioning tool is applied to the support part, the outer periphery of the motor shaft 11A is applied to the motor support part 21A, and the end of the fan boss 6A is applied to the fan support part 21B. The positions of and are set to preset positions. Therefore, it is possible to prevent an increase in noise generated when the position of the fan deviates from a predetermined position.

The boss 6A of the fan and the shaft 11A of the motor are fixed to each other by the inner hexagon bolt 40 from the opening.

Next, the closing plate 20 is fitted in the positioning portion of the opening. At this time, since the closing plate 20 is contracted and fitted in the left and right and up and down by 1 mm each, even if some component hits the closing plate, the closing plate is hard to come off. Moreover, since no adhesive tape or adhesive is used for this closing plate, it is prevented that it becomes difficult to attach the closing plate even if it is repeatedly attached and detached.

Then, the heat exchanger 5, the electrical equipment box 13, the front panel 4 and the like are attached, and the assembly of the indoor unit is completed.

[0025]

According to the present invention, the cover is provided with an opening for attaching and detaching the boss of the fan and the shaft of the motor, and the opening is closed by a closing plate formed separately from the support. Since the closing plate is provided separately from the motor support,
Hard to slip or peel off.

Further, in the case where the positioning portion of the closing plate is formed on the peripheral portion of the opening, the position of the closing plate determines the position of the closing plate, and the position of the closing plate is not particularly displaced or peeled off.

In the case where the peripheral portion of the opening is provided with the support portion of the positioning tool for determining the positions of the blower fan and the motor, the position of the boss of the blower fan and the shaft of the motor can be easily determined, and It is possible to prevent an increase in noise due to the position shift.

[Brief description of drawings]

FIG. 1 is a sectional view of an indoor unit showing an air conditioner of an embodiment of the present invention.

FIG. 2 is an exploded view of a main part of the indoor unit.

FIG. 3 is a perspective view showing a relationship among an opening of the indoor unit, a closing plate, and a positioning tool.

FIG. 4 is a perspective view showing a state in which a positioning tool is attached to an opening of the indoor unit.

[Explanation of symbols]

 6 Blower Fan 6A Boss 10 Cover 11 Motor 11A Shaft 12 Opening 12A Rib (positioning part, support part) 12B Supporting surface (positioning part, support part) 12C Rib (positioning part, support part) 13 Electrical equipment box (support tool) 20 Closure plate 21 Positioning tool

Front Page Continuation (72) Inventor Kozo Ninomiya 2-5-5 Keihan Hondori, Moriguchi City, Osaka Sanyo Electric Co., Ltd.

Claims (3)

[Claims] 1. A blower fan, a motor for driving the blower fan, and a support for supporting the motor are provided in a housing, and a boss of the blower fan and a shaft of the motor are connected to each other. In addition, in an air conditioner in which a connection portion between the boss and the shaft is covered with a cover, the cover is formed separately from the support, and the boss and the shaft are attached to and detached from the cover. An air conditioner characterized in that an opening is provided and the opening is closed by a closing plate. 2. The air conditioner according to claim 1, wherein a positioning portion for the closing plate is formed in the opening. 3. The support of a positioning tool for determining the position of the boss of the blower fan and the shaft of the motor is provided at the peripheral edge of the opening, and / or Item 2. The air conditioner according to Item 2.