JPH07145994A - Blower for air-conditioning device - Google Patents

Abstract

PURPOSE:To provide a blower for an air-conditioning device which is designed to reduce the generation of noise. CONSTITUTION:In a blower for an air-conditioning device, a fixing plate 41 by means of which a motor is fixed to a case base part 32 is also fixed to a surface 46, in which blowoff holes 39a and 39b are formed, and other surfaces 42 and 43 positioned adjacently thereto. Thus, since the fixing plate 41 for the motor is fixed on not only the surface 46, in which the blowoff holes 39a and 39b are formed, but also other surfaces 42 and 43 having no blowoff holes 39a and 39b, the motor can be stably fixed to the case base part 32, whereby vibration owing to drive of the motor is prevented from generation and the generation of noise can be reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a blower for an air conditioner, and more particularly to a blower used for a ceiling-embedded air conditioner mounted on a ceiling.

[0002]

2. Description of the Related Art Generally, an air conditioner is equipped with a blower and a heat exchanger, and the air blown from the blower is heat-exchanged by the heat exchanger and then blown indoors. .

The inside of the main body (unit main body) of the air conditioner is divided into a blower side ventilation chamber and a suction side ventilation chamber by a partition plate, and a heat exchanger is provided in the blowout side ventilation chamber and a suction side ventilation chamber. Each is equipped with a centrifugal blower.

Such a conventional air conditioner blower is disclosed in, for example, Japanese Patent Laid-Open No. 233914/1990, and the blower disclosed in this publication is a cylindrical fan 50a, 50b as shown in FIG. The motor 51 and the fans 50a and 50b and the case for housing the motor 51. Furthermore, the cases are fans 50a, 5
0b and the motor 51 and a case base 54, and a case portion 50 that covers only a part of the fans 50a and 50b and guides the blown air. The case base 54 is formed with blowout holes 56a and 56b, and the motor 51 is fixed to a portion 55 between the blowout holes 56a and 56b.

[0005]

However, in the blower of the conventional air conditioner, the motor 51 has the following relationship due to the centering of the fans 50a and 50b in the blowout holes 56a and 56b.
In the case base portion 54, it is fixed only on the same surface as the surface on which the blowout holes 56a and 56b are formed. However,
The surface on which the blowout holes 56a and 56b are formed is weak in strength, and there is a problem in that the surface is vibrated by driving the motor and causes noise.

Therefore, an object of the present invention is to provide an air conditioner blower capable of reducing noise.

[0007]

To achieve the above object, the present invention provides a blade, a motor for driving the blade, and a motor for driving the blade.
An air conditioner that has a case base that fixes the motor and divides the inside of the main body into an outlet side passage and an intake side passage, and an outlet hole is formed at a position where the blade is arranged in the case base. In the blower, a fixing plate for fixing the motor to the case base is fixed to a surface on which the blowout hole is formed and another surface adjacent to the same.

[0008]

According to the present invention, in the case base, the fixing plate of the motor is fixed not only to the surface on which the blowout holes are formed but also to the other surface on which the blowout holes are not formed. Therefore,
Since the motor can be stably fixed to the case base, it is possible to prevent vibration caused by driving the motor and reduce noise.

[0009]

Embodiments of the present invention will be described below with reference to the accompanying drawings.

As shown in FIGS. 1 and 2, an air conditioner 1 used in the embodiment of the present invention is a ceiling-embedded air conditioner suspended and fixed in a ceiling space. A suction port 3 in the center, and a pair of air outlets 4a on both sides thereof,
4b is opened, the air sucked from the suction port 3 is heat-exchanged, and then blown out from the blowout ports 4a, 4b.

The decorative plate 2 is detachably provided. When the decorative plate 2 is removed, the inside of the main body 6 is exposed.

In the main body 6, a blower 5, a heat exchanger 7a,
7b and an electrical equipment box 9 for controlling the operation are stored.
In addition, at a position corresponding to the outlets 4 a and 4 b of the decorative plate 2, a pair of outlet passages 11 are provided along the longitudinal direction of the main body 6.
a and 11b are formed, and these outlet passages 11 are formed.
a and 11b are support plates 13a and 13 arranged in the longitudinal direction.
b and the longitudinal side walls 6a, 6b of the body 6 are defined.

As the blower 5, a twin type in which cylindrical fans (blades) 19a and 19b are attached to both sides of a rotation shaft of a motor 17 is used.

As shown in FIGS. 2 and 3, the inside of the main body 6 is
The partition plate 31 and the case base 32 partition into a suction side ventilation chamber 33 and a blowing side ventilation chamber 34.
Heat exchangers 7a and 7b are arranged on the side, and a centrifugal blower is arranged on the suction side ventilation chamber 33. The blower 5 includes a motor 17 and a case that houses the fans 19a and 19b. Furthermore, the case is a fan 19a, 1
9b and the case base 32 for housing the motor 17
And case portions 38a and 38b which cover only a part of the fans 19a and 19b and guide the blown air. The case base 32 has outlet holes 39a and 39b.
Is formed, and the blowout holes 39a, 39b thereof are formed.
The motor 17 is fixed to the intermediate portion 40 via a fixing plate 41.

As shown in FIG. 4, the fixing plate 41 of the motor 17 extends to the surface 46 on which the blowout holes 39a and 39b are formed and the surfaces 42 and 43 on both sides adjacent to the surface 46,
These are fixed on a total of three sides. That is, the fixing plate 41 is formed with an auxiliary portion 41a to be fixed to the surface 42 and an auxiliary portion 41b to be fixed to the surface 43.

As described above, the fixed plate 41 of the motor has the surface 46 on which the blowing holes 39a and 39b are formed and the other surfaces 42 and 43.
The case base portion 32 can reliably support the motor 17 by extending to and. Therefore, the vibration caused by driving the motor 17 is also reduced.

By disposing the fixing plate 41 over such a wide range, the strength of the case base 32 itself can be increased.

The fixed plate 41 is provided with a support piece 44 from there.
a and 44b are extended to support the motor 17 at an appropriate centering position.

Referring again to FIGS. 1 and 2,
The heat exchangers 7a and 7b are respectively provided with outlet passages 11a and 1a.
1b is arranged in the longitudinal direction thereof, and the blower 5
The air blown by is passed through here for heat exchange. The heat exchangers 7a and 7b are connected to a refrigerant introduction pipe 21a and a refrigerant discharge pipe 21b for introducing a refrigerant therein, so that the refrigerant is introduced from an outdoor unit (not shown).

The electrical equipment box 9 is rotatably provided on the side of the short wall 6c. By making the electrical component box 9 rotatable, the work posture during maintenance of the electrical component box becomes easier and workability is improved. Further, by disposing the electrical equipment box 9 on the side wall 6c side in the lateral direction, the refrigerant inlet / outlet pipe 21
It will be arranged collectively with a, 21b, etc.,
Workability is improved.

Next, the operation of this embodiment will be described.

When the air conditioner 1 is in operation, as shown in FIG. 3, the air sucked from the suction port 3 in the center of the decorative plate 2 by driving the blower 5 heats the heat exchangers 7a and 7b.
Through the blower passages 11 on both sides of the main body 6 in the longitudinal direction.
The air after heat exchange is blown out from the air outlets 4a and 4b of the decorative plate 2 through a and 11b.

At the time of assembling the air conditioner 1, the main body 6
The partition plate 31 and the blower 5 are mounted inside. Blower 5
The motor 1 is attached to the fixed plate 41 attached to the case base 32.
7 is fixed, fans 19a and 19b are attached to both shafts thereof, and case portions 38a and 38b are covered. At this time, the fans 19a and 19b are centered in the same manner as in the conventional case, with the blowout holes 39
It can be performed on the surface 40 on which a and 39b are formed.

The fixed plate 41 is provided with blow-out holes 39a, 39
It extends to the surface 40 where b is formed and the other surfaces 42 and 43, and reliably supports the motor 17. Therefore, the motor 1
The vibration caused by driving 7 is reduced.

The present invention is not limited to the above-described embodiments, but can be variously modified without departing from the gist of the present invention.

For example, the case base 32 has a blowout hole 39a,
Even if the surface on which 39b is formed is not limited to a flat shape, the same effect as that of the above-described embodiment can be obtained even if the surface has a curved shape. In this case, the surface adjacent to the surface in which the blowout holes are formed means a curved surface portion that continuously extends from the position corresponding to the blowout holes.

The other surface to which the fixing plate 41 is fixed is
It is not limited to the surfaces 42 and 43 on both sides adjacent to the surface on which the blowout holes 39a and 39b are formed, but may be only the one surface 42 or 43.

[0028]

According to the present invention, in the case base,
Since the fixing plate of the motor is fixed not only to the surface where the blowout holes are formed but also to the other surface where the blowout holes are not formed, the motor can be stably fixed to the case base. Vibration due to driving can be prevented, and noise can be reduced. Further, since the fixing plate is provided on the case base over a wide range, the strength of the case base itself can be increased.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a sectional view of the air conditioner shown in FIG.

FIG. 3 is an exploded perspective view of a blower of the air conditioner.

FIG. 4 is a perspective view showing a case base portion shown in FIG.

FIG. 5 is an exploded perspective view of a conventional blower.

[Explanation of symbols]

 1 Air Conditioner 6 Main Body 17 Motor 19a, 19b Fan (Blade) 32 Case Base 39a, 39b Blowout Hole 41 Fixing Plate 42 Other Surface 43 Other Surface 46 Surface with Blowout Hole

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuhiro Hinata 2-5-5 Keihan Hon-dori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Masazumi Makino 2-chome 5-chome, Keihan-hondori, Moriguchi-shi, Osaka No. 5 Sanyo Electric Co., Ltd. (72) Inventor Kazuo Abe 2-5 Keihan Hondori, Moriguchi City, Osaka Prefecture No. 5 Sanyo Denki Co., Ltd. (72) Yukito Nawata 2-5 Keihan Hondori, Moriguchi City, Osaka Prefecture No. 5 within Sanyo Electric Co., Ltd.

Claims (1)

[Claims] 1. A blade and a motor for driving the blade,
An air conditioner that has a case base that fixes the motor and divides the inside of the main body into an outlet side passage and an intake side passage, and an outlet hole is formed at a position where the blade is arranged in the case base. In the blower, the fixing plate that fixes the motor to the case base is fixed to a surface on which the blowout hole is formed and another surface adjacent to the same.