JP3307835B2 - Indoor unit of air conditioner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit of an air conditioner, and more particularly to a connection between a cross flow fan and a motor.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 1, an indoor unit of an air conditioner is detachable in a ventilation passage 6 connecting an inlet 1a at an upper portion of a housing 1 and an outlet 5 at a lower portion of the housing. An air filter 2, a heat exchanger 3, a cross flow fan 4 for sending the heat-exchanged conditioned air to the outlet 5, and the like are provided. As shown in FIG. 5, the cross flow fan 4 has a shaft 4a integrally mounted on one side of the cross flow fan 4 and a bearing provided on a first side plate 7a standing upright from a predetermined casing 7. The cross flow fan 4 is fixed to a shaft 8a of a motor 8 that rotates the cross flow fan 4 in a cylindrical bearing portion 4b having a screw hole 4b1 by being rotatably supported by a shaft through a portion 7a1. And the connecting portion 10 is erected from the casing 7 to form an axial reinforcing rib 7b1.
Is surrounded by the second side plate 7b having Also,
The motor 8 is provided with a vibration isolating rubber 1 on a bearing 8 a of the motor 8.
1, the vibration-proof rubber 11 is inserted and accommodated in a vibration-proof rubber insertion portion 7c provided in the casing 7, and the casing 7 is locked to a base 1b behind the housing 1. I was trying to do it. However, in this configuration, when fixing the cross flow fan 4 to the shaft 8a of the motor 8 with the screw 9, it is necessary to visually search for a position where the cross flow fan 4 does not hit the casing 7 or the like. A problem arises in that abnormal noise is generated if fixed in place. Therefore, a structure that can surely position the crossflow fan regardless of who works is awaited.

[0003]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems, and provides an indoor unit of an air conditioner in which the positioning of the crossflow fan can be reliably performed regardless of who works. It is intended to be.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a detachable air filter and a heat filter in a ventilation passage connecting a suction port at an upper portion of a housing and an air outlet at a lower portion of the housing. An exchanger and a cross-flow fan for delivering the heat-exchanged conditioned air to the outlet are provided, and a shaft provided on one side of the cross-flow fan is rotated by a bearing provided on a first side plate standing upright from a casing. The shaft of the motor that rotates the cross flow fan is freely inserted into the bearing that is supported on the other side and screwed and connected, and the connecting part is erected from the casing to reinforce in the axial direction. Surrounded by a second side plate having ribs,
Vibration-proof rubber is inserted into the bearing part of the motor, and the vibration-proof rubber is inserted and housed in the vibration-proof rubber insertion part provided in the casing, and the casing is locked to the base at the rear of the housing. In the indoor unit of the air conditioner configured as described above, a notch that opens upward is provided at a position corresponding to the screw of the connecting portion of the reinforcing rib, and the screw is fastened by inserting a screwdriver shaft into the notch. I made it. Further, two reinforcing ribs are provided in parallel, and the notches are provided in both reinforcing ribs. In addition, by forming the notch, the width of the notch is narrow downward and wide upward, the V-shaped or U-shaped,
It is now possible to handle screwdrivers with different shaft thicknesses. Further, by providing a plurality of steps in the notch corresponding to the diameter of the driver, it is possible to cope with a driver having a different shaft thickness for fastening a screw.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS With the above construction, in the indoor unit of an air conditioner of the present invention, a notch is provided in a reinforcing rib provided on a second side plate erected on a casing, and the notch is provided in the notch. By screwing the cross flow fan to the motor shaft through the section, the positioning of the cross flow fan can be reliably performed.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An indoor unit of an air conditioner according to the present invention will be described below in detail with reference to the drawings. FIG. 1 is a side sectional view of a main part of an indoor unit of an air conditioner according to the present invention, and FIG. 2 is a perspective view of a main part showing a mounting portion of a cross flow fan of the indoor unit of the air conditioner according to the present invention. FIG. 1 has been described in the section of the related art, and a description thereof will be omitted. The cross-flow fan 4 has a shaft 4a mounted on one side thereof by integral molding, and a coaxial 4a provided on a first side plate 7a standing on the casing 7 as shown in FIG. 7a1 is rotatably supported by a shaft, and has a cylindrical bearing 4b having a screw hole 4b1 on the other side, and a shaft 8a of a motor 8 for rotating the cross flow fan 4 in the bearing 4b. And fixed with screws 9.

Then, the second side plate 7 is
b, surrounding the connecting portion 4b, the second side plate 7b is provided with two reinforcing ribs 7b1, 7b2 parallel to the axial direction, and the screw holes 4b1 of the reinforcing ribs 7b1, 7b2 are provided.
Is provided with a notch 7d opening upward. FIG. 3 is a plan view showing an embodiment of the shape of the notch 7d. As shown in FIG. 3A, the width of the notch 7d is substantially V-shaped or U-shaped. It is formed into a shape or, as shown in FIG.
By providing a plurality of steps 7d1 corresponding to the diameter of the driver, it is possible to cope with different diameters of the shaft of the driver 12 for fastening the screw.

Next, a method of screwing the cross flow fan 4 to the motor 8 in the above configuration will be described. After the shaft 8a of the motor 8 is inserted into the bearing 4b of the cross flow fan 4, a screw 9 is temporarily inserted into a screw hole 4b1 provided in the bearing 4b, and as shown in FIG. Apply the driver 12 and slide the cross-flow fan in the axial direction, and adjust the axis of the driver 12 to the reinforcing rib 7b.
1, 7b2 is inserted into the notch 7d from the upper opening of the notch 7d, and the driver 12 is turned and screwed. The notch 7d is previously provided at a position where the cross flow fan 4 does not hit the casing 7 or the like and is screwed at a regular position.
Is reliably positioned.

[0009]

As described above, according to the indoor unit of the air conditioner according to the present invention, the notch is provided in the reinforcing rib provided on the second side plate erected on the casing, and the notch is passed through the notch through the shaft of the driver. By screwing the flow fan to the motor shaft, the positioning of the cross flow fan can be ensured, so the indoor unit of the air conditioner can reliably determine the position of the cross flow fan regardless of who works. Can be provided.

[Brief description of the drawings]

FIG. 1 is a side sectional view showing a main part of an embodiment of an indoor unit of an air conditioner according to the present invention.

FIG. 2 is a perspective view of a main part showing a mounting portion of a cross flow fan of the indoor unit of the air conditioner according to the present invention.

FIG. 3 is a plan view showing a shape example of a notch 7d of the indoor unit of the air conditioner according to the present invention.

FIG. 4 is an explanatory diagram for explaining a method of screwing a cross flow fan of an indoor unit of an air conditioner according to the present invention.

FIG. 5 is a perspective view of a main part showing a mounting part of a cross flow fan of an indoor unit of a conventional air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Housing 1a Suction port 2 Air filter 3 Heat exchanger 4 Cross flow fan 4a Shaft 4b Bearing part 4b1 Screw hole 5 Outlet 6 Ventilation path 7 Casing 7a First side plate 7a1 Bearing part 7b Second side plate 7b1, 7b2 Reinforcement rib 7d Notch 7d1 Step 8 Motor 8a Shaft 9 Screw 10 Connecting part 12 Driver

Claims (4)

(57) [Claims] 1. A removable air filter, a heat exchanger, and heat-exchanged conditioned air are supplied to the air outlet in an air passage connecting an air inlet at an upper portion of the housing and an air outlet at a lower portion of the housing. A cross-flow fan or the like for sending out is provided, and a shaft provided on one side of the cross-flow fan is rotatably supported on a bearing provided on a first side plate erected from a casing, and a shaft provided on the other side. The shaft of the motor that rotates the cross flow fan is inserted and screwed and connected, the connecting portion is erected from the casing, and is surrounded by a second side plate having an axial reinforcing rib,
Vibration-proof rubber is inserted into the bearing part of the motor, and the vibration-proof rubber is inserted and housed in the vibration-proof rubber insertion part provided in the casing, and the casing is locked to the base at the rear of the housing. In the indoor unit of the air conditioner configured as described above, a notch that opens upward is provided at a position corresponding to the screw of the connecting portion of the reinforcing rib, and the screw is fastened by inserting a screwdriver shaft into the notch. An indoor unit of an air conditioner, characterized in that: 2. The indoor unit of an air conditioner according to claim 1, wherein two reinforcing ribs are provided in parallel, and the notches are provided in both reinforcing ribs. 3. The air conditioner room according to claim 1, wherein the notch is formed in a substantially V-shape or a U-shape, wherein the notch width is narrow downward and wide upward. unit. 4. The indoor unit of an air conditioner according to claim 1, wherein a plurality of steps are provided in the notch corresponding to a diameter of a driver.