WO2013146102A1

WO2013146102A1 - Air conditioner

Info

Publication number: WO2013146102A1
Application number: PCT/JP2013/055770
Authority: WO
Inventors: 一歩平尾; 直之伏見; 康治佐久間
Original assignee: 日立アプライアンス株式会社
Priority date: 2012-03-28
Filing date: 2013-03-04
Publication date: 2013-10-03
Also published as: JP6022182B2; JP2013204875A

Abstract

The purpose of the present invention is to provide an air conditioner that facilitates positioning of a motor-securing unit or a bearing-securing stand and enables improved centering accuracy, that minimizes position deviation of the motor-securing unit or the bearing-securing stand, and that allows for a reduction in vibration and noise. The air conditioner is partitioned internally by a partition plate part into a heat exchanging chamber that accommodates a heat exchanger and a blower chamber that accommodates a blower fan, the blower chamber being provided with a fan motor for driving the blower fan and a bearing unit for bearing a rotary shaft of the fan motor, and the fan motor being secured to a top surface side plate and the partition plate part by the motor-securing unit; wherein the air conditioner is characterized in that the top surface side plate has a cut-and-raised-up part for the motor-securing unit formed toward the fan motor, the cut-and-raised-up part for the motor-securing unit preventing the motor-securing unit from moving toward the partition plate part by making contact with the side surface of the partition plate part for the motor-securing unit.

Description

Air conditioner

The present invention relates to an air conditioner.

As background art in this technical field, there is JP-A-2005-164072 (Patent Document 1). In this publication, “when the rotating shaft of the fan motor constituting the blower is long, it is assumed that the rotating shaft is supported by the bearing portion, and the mounting and fixing of the rotating shaft is ensured. It is intended to provide an air conditioner that prevents the occurrence of bending due to rotation, provides high centering accuracy, and improves the assembly workability. "

In such a blower having a long rotating shaft on the horizontal axis, in order to reduce noise and vibration, it is important that the motor shaft and the center of the bearing coincide (centering). The accuracy of the motor shaft is determined by fixing the motor fixing portion, and the accuracy of the center of the bearing is determined by fixing the bearing portion and the bearing fixing base.

Japanese Patent Laying-Open No. 2005-164072

Patent Document 1 describes a method for fixing a bearing fixing base and a bearing portion and a method for fixing a bearing fixing base and an upper surface side plate portion as a method for performing centering of a rotating shaft with high accuracy. This fixing method is shown so that the bearing fixing base is fixed so as not to move in the forward direction of the unit, and the centering can be performed with high accuracy.

However, in Patent Document 1, since the bearing fixing base is not fixed in the rear direction of the unit, there is a possibility that the accuracy of the centering is not achieved. Further, the case where the positional relationship between the motor fixing portion and the bearing fixing base is deviated is not taken into consideration in Patent Document 1, and there is a possibility that the centering accuracy may be lowered.

Accordingly, an object of the present invention is to facilitate positioning of the motor fixing portion or the bearing fixing base and obtain high centering accuracy, and also to suppress the displacement of the motor fixing portion or the bearing fixing base, thereby reducing vibration and noise. Is to provide a simple air conditioner.

In order to solve the above problems, for example, the configuration described in the claims is adopted.
The present application includes a plurality of means for solving the above-mentioned problems. If an example is given, the interior is partitioned by a partition plate portion into a heat exchange chamber that houses a heat exchanger and a blower chamber that houses a blower fan, A fan motor that drives the blower fan, a bearing that supports a rotation shaft of the fan motor, and an air that is provided in the blower chamber and that is fixed to the upper surface side plate portion and the partition plate portion by a motor fixing portion. In the harmony device, the upper surface side plate portion is formed with a motor fixing portion cut-and-raised portion formed on the fan motor side, and the motor fixing portion cut-and-raised portion is on the side of the partition plate portion of the motor fixing portion. The motor fixing portion is prevented from moving to the partition plate portion side by contacting on the surface.

According to the present invention, it is possible to easily position the motor fixing portion or the bearing fixing base, obtain high centering accuracy, suppress the displacement of the motor fixing portion or the bearing fixing base, and reduce vibration and noise. An air conditioner can be provided.
Problems, configurations, and effects other than those described above will be clarified by the following description of embodiments.

It is a figure which shows the perspective view of the air conditioning apparatus 1 of a present Example. Sectional drawing which looked at the air conditioning apparatus 1 of a present Example from the horizontal direction (right direction of FIG. 1) is shown. It is an example of the internal structure figure of the air conditioning apparatus 1 of a present Example. It is the figure which looked at the state which attached the motor fixing | fixed part 7 of the present Example to the upper surface side board part 5 from the rotating shaft direction. It is a perspective view of the motor fixing | fixed part of a present Example. It is the figure which looked at the state which attached the bearing fixing | fixed part 9 of the present Example to the upper surface side board part 5 from the rotating shaft direction. It is a perspective view of the bearing fixing | fixed part 9 of a present Example.

Hereinafter, examples will be described with reference to the drawings.

FIG. 1 is a perspective view of an air conditioner 1 according to this embodiment.
FIG. 2 shows a cross-sectional view of the air conditioner 1 of the present embodiment as viewed from the lateral direction (right side direction of FIG. 1). The air conditioner 1 of the present embodiment is attached in a state of being close to the ceiling. When the blower fan 4 is driven, the air conditioner 1 sucks air from the suction port 21, performs heat exchange by the heat exchanger 3, and blows out air that has undergone heat exchange from the outlet 22. The air conditioning operation is performed. Here, in the present embodiment, the space that houses the heat exchanger 3 is called a heat exchange chamber A, and the space that houses the blower fan 4 is called a blower chamber B. The heat exchange chamber A and the air blowing chamber B are partitioned by the partition plate portion 2 and are formed by the partition plate portion 2 and the upper surface side plate portion 5 (top plate).

FIG. 3 is a view showing the internal structure of the air conditioner, and shows the view of FIG. 1 as viewed from below. The blower chamber B is configured to be partitioned by the upper surface side plate portion 5 and the partition plate portion 2, and includes a motor fixing portion 7 (motor fixing base) for fixing the fan motor 6 that drives the blower fan 4 to the upper surface side plate portion 5, and a fan. A bearing portion 8 (bearing fixing base) that supports the rotating shaft of the motor 6 and a bearing fixing portion 9 that fixes the bearing portion 8 to the upper surface side plate portion 5 are provided. In FIG. 3, the upper surface side plate portion 5 is disposed on the opposite side. As described above, the air conditioner 1 according to the present embodiment partitions the interior into the heat exchange chamber A that houses the heat exchanger 3 and the blower chamber B that houses the blower fan 4 by the partition plate portion 2. The fan motor 6 that drives the fan 4, the bearing portion 8 that supports the rotation shaft of the fan motor 6, and the blower chamber B are provided in the fan chamber 6. Fixed to.

Here, the motor fixing portion 7 and the bearing fixing portion 9 are displaced forward (downward in FIG. 3) and rearward (upward in FIG. 3), or in the direction of the rotation axis (left and right in FIG. 3). If this misalignment occurs, it may cause vibration and noise due to the bending deformation and misalignment of the rotating shaft. Therefore, it is important to prevent this misalignment. Below, the structure of the present Example for solving this subject is demonstrated.

FIG. 4 is a view of the state in which the motor fixing portion 7 of this embodiment is attached to the upper surface side plate portion 5 as viewed from the direction of the rotation axis.

FIG. 5 shows a perspective view of the motor fixing portion 7 of this embodiment. In this embodiment, as shown in FIGS. 4 and 5, the upper surface side plate portion 5 is formed with a motor fixing portion cut-and-raised portion 10 formed on the fan motor 6 side, and the motor fixing portion cut-and-raised portion 10 is a motor. Contact is made at the heat exchanger chamber side movement preventing surface 15 on the side of the partition plate portion 2 of the fixed portion 7. Although not shown in FIG. 5, the partition plate portion 2 is disposed on the near side, and the upper surface side plate portion 5 is disposed on the lower side. By forming the motor fixing portion cut-and-raised portion 10 on the upper surface side plate portion 5 in this way, the motor fixing portion 7 is prevented from moving to the partition plate portion 2 side (the upper side in FIG. 4, the front side in FIG. 5). It is possible to prevent displacement of the fan motor 6 in the front direction of the unit (upper side in FIG. 3), and it is possible to perform positioning using this.

More specifically, as shown in FIG. 5, the motor fixing portion 7 includes an upper surface side plate portion 5 (not shown, but arranged on the lower side of FIG. 5) on both sides in the rotational axis direction of the fan motor 6. It is configured to be fixed. The motor fixing portion cut-and-raised portion 10 is composed of two cut-and-raised portions formed on both sides in the rotation axis direction, and these cut-and-raised portions are respectively formed on the partition plate portions 2 (not shown) on both sides in the rotation axis direction. The motor fixing part 7 is prevented from moving to the partition plate part 2 side by making contact with the surface (heat exchanger chamber side movement preventing surface 15) on the side of (not on the front side of FIG. 5) It is. Here, the motor fixing part cut-and-raised part 10 is formed on the upper surface side plate part 5 so that a separate member is not required and the cost is reduced. However, instead of the motor fixing part cut-and-raised part 10, welding or the like is used. It is also possible to form a motor fixing portion convex portion on the fan motor 6 side and thereby achieve the same operation as the motor fixing portion cut-and-raised portion 10.

Here, the upper surface side plate portion 5 is formed with a convex portion 11 (rib shape) so as to protrude toward the partition plate portion 2, and the partition plate portion 2 has a shape of the convex portion 11 at a position where it contacts the upper surface side plate portion 5. It is bent to match. In this way, the partition plate portion 2 is configured to come into contact with the fan motor 6 on the opposite side surface, so that the partition plate portion 2 does not move to the motor fixing portion 7 side (lower side in FIG. 4).

Next, a method for preventing the displacement of the bearing fixing portion 9 will be described with reference to FIGS. Although it is important to prevent the motor fixing portion from being displaced, if the bearing fixing portion 9 is displaced, the centering accuracy is lowered, which may cause noise and vibration. In this embodiment, the configuration shown in FIGS. 6 and 7 solves this problem and suppresses the generation of noise and vibration.

FIG. 6 is a view of the state where the bearing fixing portion 9 of this embodiment is attached to the upper surface side plate portion 5 as viewed from the direction of the rotation axis.

FIG. 7 is a perspective view of the bearing fixing portion 9 of the present embodiment. The bearing portion 8 is fixed by the bearing fixing portion 9, and the bearing fixing portion 9 is fixed to the upper surface side plate portion 5 and the partition plate portion 2. Although not shown in FIG. 7, the upper surface side plate portion 5 is disposed on the lower side, and the partition plate portion 2 is disposed on the near side. The upper surface side plate portion 5 is formed with a bearing fixing portion cut-and-raised portion 12 formed on the bearing portion 8 side, and the bearing fixing portion cut-and-raised portion 12 is a partition plate portion 2 (not shown) of the bearing fixing portion 9. Is disposed on the heat exchanger chamber side movement preventing surface 13 on the near side of FIG. The opposite side surface is a surface where the heat exchanger chamber side movement preventing surface 13 of the bearing fixing portion 9 in FIG. 7 and the heat exchanger chamber side movement preventing portion 17 of the bearing fixing portion cut-and-raised portion 12 are in contact. Thereby, the bearing fixing | fixed part 9 is prevented from moving to the partition plate part 2 side.

Also, the bearing fixing portion cut and raised portion 12 is brought into contact with the bearing fixing portion 9 on the surface in the rotation axis direction so that the bearing fixing portion 9 does not move in the rotation axis direction. That is, the bearing fixing portion 9 does not move in the direction of the rotation axis due to the contact between the rotation axis direction movement preventing surface 14 of the bearing fixing portion 9 in FIG. 7 and the rotation axis direction movement preventing portion 18 of the bearing fixing portion cut-and-raised portion 12. It is what you want to do. This is because the bearing fixing portion 9 is fixed to the top surface top plate 5 by the screw 23, but the bearing fixing portion 9 moves in the rotation direction of the screw 23, that is, the rotation axis direction during this operation. Is to prevent. As a result, workability can be improved and misalignment can be prevented.

According to the configuration of the present embodiment described above, positioning can be performed so that the center of the bearing portion 8 coincides with the rotation axis of the fan motor 6, and misalignment can be prevented. This makes it possible to reduce the vibration and noise caused by misalignment. Further, since the cut-and-raised portions for the motor fixing portion 7 and the bearing fixing portion 9 are formed by the upper surface side plate portion 5 which is the same component, it is easy to perform dimensional control during manufacturing.

DESCRIPTION OF SYMBOLS 1 Air conditioning apparatus 2 Partition plate part 3 Heat exchanger 4 Blower fan 5 Upper surface side plate part 6 Fan motor 7 Motor fixing part 8 Bearing part 9 Bearing fixing part 10 Motor fixing part cut-and-raising part 11 Convex part 12 Bearing fixing part cutting Raising part 13 Heat exchanger chamber side movement prevention surface (bearing fixing part)
14 Rotation axis direction movement prevention surface 15 Heat exchanger chamber side movement prevention surface (motor fixing part)
16 Surface of partition plate 17 Heat exchanger chamber side movement prevention part (bearing fixing part cut-and-raised part)
18 Rotation axis direction movement prevention part A Heat exchange chamber B Blower chamber

Claims

The interior is partitioned by a partition plate portion into a heat exchange chamber that houses the heat exchanger and a blower chamber that houses the blower fan,
A fan motor for driving the blower fan, a bearing portion for supporting a rotation shaft of the fan motor, and the fan chamber;
In the air conditioner in which the fan motor is fixed to the upper surface side plate portion and the partition plate portion by a motor fixing portion,
The upper surface side plate portion is formed with a motor fixing portion cut-and-raised portion formed on the fan motor side, and the motor fixing portion cut-and-raised portion contacts the surface of the motor fixing portion on the side of the partition plate portion. By doing so, the motor fixing portion is prevented from moving toward the partition plate portion.
In the air conditioning apparatus according to claim 1,
The motor fixing portion is configured to be fixed to the upper surface side plate portion on both sides of the rotation axis direction of the fan motor,
The cut-and-raised portion for the motor fixing portion is constituted by cut-and-raised portions formed on both sides in the rotational axis direction,
These cut-and-raised portions are respectively brought into contact with the surfaces on the side of the partition plate portion on both sides in the rotation axis direction, so that the motor fixing portion does not move toward the partition plate portion side. Air conditioner.
In the air conditioning apparatus according to claim 1,
The bearing portion is fixed by a bearing fixing portion, and the bearing fixing portion is fixed to the upper surface side plate portion and the partition plate portion,
The upper surface side plate portion is formed with a bearing fixing portion cut-and-raised portion formed on the bearing portion side, and the bearing fixing portion cut-and-raised portion contacts the surface of the bearing fixing portion on the partition plate portion side. By doing so, the said bearing fixing | fixed part is prevented from moving to the said partition plate part side, The air conditioning apparatus characterized by the above-mentioned.
In the air conditioning apparatus according to claim 3,
The air conditioning apparatus characterized in that the bearing fixing part cut-and-raised part makes contact with the bearing fixing part on the surface in the rotation axis direction so that the bearing fixing part does not move in the rotation axis direction. .
The interior is partitioned by a partition plate portion into a heat exchange chamber that houses the heat exchanger and a blower chamber that houses the blower fan,
A fan motor for driving the blower fan, a bearing portion for supporting a rotation shaft of the fan motor, and the fan chamber;
In the air conditioner in which the fan motor is fixed to the upper surface side plate portion and the partition plate portion by a motor fixing portion,
The upper surface side plate portion is formed with a motor fixing portion convex portion formed on the fan motor side, and the motor fixing portion convex portion is in contact with the surface of the motor fixing portion on the side of the partition plate portion. Thus, the air conditioner prevents the motor fixing portion from moving toward the partition plate portion.
The air conditioner according to any one of claims 1 to 5,
The upper surface side plate portion is formed with a convex portion so as to be convex toward the partition plate portion side,
The air conditioner characterized in that the partition plate portion is configured to come into contact with the side surface of the convex portion opposite to the fan motor, so that the partition plate portion does not move toward the motor fixing portion side. .