JPH0921399A - Blower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of part items, and to reduce the time and the labor necessary to assemble an air blower, by composing a vibration-proof member with a soft resin, and integrally forming the vibration-proof member made of a soft resin and an impeller made of a resin. SOLUTION: A vibration-proof member 23 is composed of a soft resin of the same system with the component material of an impeller 60 made of a resin such as AS, and this vibration-proof member 23 made of a soft resin is formed unitary with the impeller 60 made of a resin. Between a rotary shaft 20 and the vibration-proof member 23 made of a soft resin, a spool 22 which consists of a soft resin of the same system is provided. The vibration-proof member 23 is integrally formed with the impeller 60 when the impeller 60 is formed. Consequently, since the number of part items is reduced, and the time and the labor necessary for installing an air blower can be also reduced, the cost can be reduced.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a blower suitable for a ceiling-embedded air conditioner.

[0002]

2. Description of the Related Art An example of a conventional ceiling-embedded air conditioner is shown in FIG. A heat exchanger 7, a drain pan 10, a motor 5, a blower 6, a baffle plate 12 and the like are built in the case main body 2 installed by being embedded in the ceiling 1, and a ceiling panel 8 is attached to the lower part of the case main body 2. Has been done.

A suction port 3 is formed in the central portion of the ceiling panel 8, and a suction port 4 is provided adjacent to the suction port 3 and outside thereof.
Are formed.

During operation of this air conditioner, refrigerant from an outdoor unit (not shown) circulates in the heat exchanger 7, and the motor 5 drives the blower 6. Then, the indoor air in the chamber 9 passes through the suction port 3, the suction grill 11 and the filter 13, is guided by the baffle plate 12, is sucked into the blower 6, and is urged.

Then, in the process of passing through the heat exchanger 7, it is cooled or heated to become conditioned air, which is blown into the chamber 9 from the air outlet 4.

The impeller 60 of the blower 6 is made of a resin such as styrene / acrylonitrile (AS), and as shown in FIG. Motor 5 via sleeve 16
Is connected to one end of a rotary shaft 20 of. In addition, 21 is a flange, 24 is a washer, and 25 is a nut.

[0007]

In the above conventional blower, in order to prevent the vibration of the rotary shaft 20 of the motor 5 from being transmitted to the impeller 60, the boss 61 of the impeller 60 and the metal sleeve 16 are provided. Since the anti-vibration member 15 made of rubber is interposed between the two parts, there is a problem that the number of parts increases and the assembly takes time and labor, resulting in an increase in cost.

[0008]

The present invention has been invented in order to solve the above-mentioned problems, and is characterized in that the vibration-proof member is made of a soft resin, and the vibration-proof member made of the soft resin is used. The vibration member and the resin impeller are integrally molded.

Another feature is that a sleeve made of hard resin is interposed between the rotary shaft and the vibration isolation member made of soft resin.

[0010]

DETAILED DESCRIPTION OF THE INVENTION One embodiment of the present invention is shown in FIG. The vibration damping member 23 is made of a soft resin similar to the constituent material of the resin impeller 60 such as AS, and the vibration damping member 23 made of the soft resin is integrally molded with the resin impeller 60.

The rotary shaft 20 and the vibration-proof member made of soft resin
A sleeve made of hard resin of the same type as this 22
Is interposed. The other configuration is the same as that of the conventional one shown in FIGS. 2 and 3, and the corresponding members are denoted by the same reference numerals and description thereof will be omitted.

However, since the vibration-damping member 23 made of the soft resin is integrally molded with the impeller 60 when it is molded, the number of parts is reduced as compared with the conventional one, and therefore the labor and time required for assembling the blower are reduced. Since it is possible to reduce the cost, the cost can be saved.

[0013]

According to the present invention, the vibration isolator is made of a soft resin, and the vibration isolator made of the soft resin is integrally molded with the resin impeller. Therefore, the number of parts is reduced as compared with the conventional one.
Therefore, the labor and time required for assembling the blower can be reduced, and the cost can be reduced.

If a sleeve made of hard resin is interposed between the rotary shaft and the vibration isolator made of soft resin, the sleeve can be made lighter in weight and the cost thereof can be reduced, and the vibration isolator is also provided. The life and durability of can be improved.

[Brief description of drawings]

FIG. 1 is a partial vertical sectional view showing an embodiment of the present invention.

FIG. 2 is a vertical sectional view of a conventional ceiling-embedded air conditioner.

FIG. 3 is a partial vertical cross-sectional view of a conventional blower.

[Explanation of symbols]

 5 Motor 20 Rotating shaft 60 Resin impeller 61 Boss 23 Soft resin vibration isolator 22 Sleeve 21 Flange 24 Washer 25 Nut

Claims (2)

[Claims] 1. A fan comprising a resin impeller connected to one end of a rotary shaft of a motor via a vibration isolating member, wherein the vibration isolating member is made of a soft resin, and the soft resin vibration isolating member is formed. A blower characterized by being integrally molded with the resin impeller. 2. The blower according to claim 1, wherein a sleeve made of hard resin is interposed between the rotary shaft and the vibration isolating member made of soft resin.