JPS6312216B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a protection device for a blower during transportation of a window type air conditioner.

Conventional configuration and its problems Conventionally, this type of air conditioner was
As shown in the figure, the air conditioner main body 1 is composed of an indoor unit 2 and an outdoor unit 3, and inside the indoor unit 2, an indoor heat exchanger 4, a ventilation circuit 5, an indoor fan 6, and a blow-off guider 7 are installed. It is being
Further, inside the outdoor unit 3, there are an outdoor heat exchanger 8, a compressor 9 and a motor 10 that constitute a refrigeration cycle together with the indoor heat exchanger 4 and the outdoor heat exchanger 8. A propeller fan 11 and an air guider 12 are provided between the outer heat exchanger 8.

Conventionally, in the air conditioner having the above configuration, the positions of the air guider 12 and the propeller fan 11 attached to the shaft 13 of the motor 10 were not regulated during transportation. 12 and the shaft 13 of the motor 10 were misaligned, causing contact between the propeller fan 11 and the air guider 12. As a result, the propeller fan 11 and air guider 12 are deformed, the shaft 13 of the motor 10 is eccentric, the life of the propeller fan 11 is shortened, and large noise is generated during operation.
Various problems such as vibration occurred, and some kind of countermeasure was desired.

Purpose of the Invention The present invention completely eliminates the contact between the propeller fan and the air guider during transportation, which is seen in the above-mentioned conventional example, and eliminates the shortening of the life of the fan, excessive noise during operation, and The purpose is to prevent various problems such as vibration and to facilitate the installation and removal of the blower protection device.

Composition of the Invention The present invention provides that, in the circumference of the air guider opening,
The blower protection device is composed of a left and right regulating section that regulates the position of the motor shaft in the diametrical direction and in the horizontal direction, and a lower regulating section that regulates the position of the motor shaft in the diametrical direction and in the downward direction,
The left and right regulating portions and the lower regulating portion are connected near the motor shaft, and the mounting brackets are fixed outside the air guide opening at positions opposite to each other in the diametrical and left-right directions with respect to the center of the opening. The left and right restricting portions and the lower restricting portion are configured to penetrate between the propeller fan blades and rotate around the motor shaft so as to fit therein.

DESCRIPTION OF EMBODIMENTS FIGS. 5 to 8 show embodiments of the present invention.
This will be explained with reference to the diagram. Here, Figures 1 to 4
The same parts shown in the figures are given the same reference numerals and the description thereof will be omitted.

Reference numeral 17 denotes a blower protection device according to an embodiment of the present invention, which includes a left-right regulating portion 15 for regulating the position of the motor shaft 13 in the left-right direction (direction A in the figure) and a lower direction (direction A in the figure) with respect to the opening 14 of the air guider 12. B in the diagram
The opening 14 of the air guider 12 is formed at the intersection of the left and right regulating parts 15 and the lower regulating part 16.
The bearing part 1 of the motor shaft 13 corresponds to the axis of the motor shaft 13.
8 is provided. In addition, the protection device 17
are formed by stacking the plywood 19, cardboard c20, and cardboard paper d21, respectively, and the plywood 19 and the cardboard paper c2 located next to it are
0 has the same shape, the longitudinal dimension of the left and right regulating portions 15 is the diameter of the opening 14 of the air guider 12, and the longitudinal dimension of the lower regulating portion is the same as that of the opening 1.
It is made according to the radius of 4.

Sandwich the cardboard paper c20 and insert the plywood 19
The longitudinal dimension of the left-right restricting portion 15 of the cardboard paper d21 located on the opposite side of the paper is symmetrical about the bearing portion 18 for fixation to the air guider 12 by an arbitrary length longer than the cardboard paper c20 or the plywood 19. It is formed. In addition, cutouts 23 are provided in the center of the protection device 17 at positions that are symmetrical in the left-right direction with the bearing 18 at the center. The device 17 and propeller fan 16 can be attached more closely together.

The protective device 17 is connected to the opening 1 of the air guider 12.
The protective device 17 is attached to an L-shaped fixture 22 with one side facing upward and the other side facing downward, which is fixed at a position opposite to the center of the opening 14 in the diametrical and left-right directions on the outside of the opening 14. Left and right regulation part 1
5. The air guider is always maintained by passing the lower regulating part 16 through each blade and rotating it counterclockwise (direction E in the figure) around the motor shaft 13 to fit and fix it. 12 can be made to coincide with the axis of the motor shaft 13, that is, the axis of the propeller fan 11.

As a result, the axes of the shaft 13 and air guider 12 may shift due to drops or vibrations during transportation, causing the propeller fan 11 to hit the air guider 12, resulting in deformation of the propeller fan 11 and air guider 12, and eccentricity of the motor shaft 13. can be prevented. In addition, the left and right regulating portions 15 of the protection device 17,
By fixing the lower regulating portions 16 through each blade, the air guider 1
The protection device 17 and the propeller fan 16 can be attached more closely in the depth direction of the opening 14 of No. 2. Further, the protection device 17 is attached to a pair of fixing fittings 22 provided outside the opening 14 of the air guider 12 at positions opposite to each other in the left and right direction with respect to the center of the opening 14 in a counterclockwise direction around the motor shaft 13. Rotate and fix, clockwise (direction F in the diagram)
It can be easily removed by rotating it.
The workability of attaching and detaching is improved, and the force in the axial direction of the motor shaft 13 acting on the protective device 17 can be received by the fixing metal fittings 22, so that the protective device 17 is prevented from being damaged by impact caused by dropping or vibration. It won't fall off.

In this embodiment, plywood 19 and corrugated paper 20, 21 are used to construct the protection device 17, but it is also possible to mold this from resin.

In addition, in this embodiment, steps are provided at both ends of the left and right regulating portions 15 of the protection device 17 for fixing to the air guider 12, but as shown in FIG. A fixing fitting 25 having a surface 24 in a diametrical direction with respect to the center of 14.
By using , this level difference can be eliminated. Furthermore, as shown in FIG. 8, the elastic force of the protective device 26 molded with resin is used to
6 is bent in the axial center direction of the motor shaft (direction H in the figure), and its restoring force is used to abut and fix the left and right regulating parts 15 against the diametrical surface 24 of the fixing fitting 25. You can also do that.

As is clear from the embodiments described above, the present invention positions the protective device in the diametrical direction of the air guider with respect to the air guider opening, and in the lower direction with the left and right regulating portions that regulate the position of the motor shaft in the left and right direction. Since the left and right regulating parts and the lower regulating part are connected near the motor shaft, the axis of the motor shaft is always kept at a constant position with respect to the air guider opening during transportation. can do. Therefore, it is possible to completely eliminate problems such as when the axis of the motor shaft shifts due to drops or vibrations during transportation, causing the propeller fan to hit the air guider, resulting in deformation of the propeller fan or air guider, or eccentricity of the motor shaft. Can be done. Furthermore, by eliminating the above-mentioned problems, the life of the propeller fan will be reduced, and the loud noise during operation will be reduced.
Problems caused by vibration can also be prevented. In addition, the above-mentioned protection device has the left and right regulating portions and the lower regulating portion of the protection device attached to fixing fittings that are fixed at positions opposite to each other in the diametrical and left-right directions with respect to the center of the opening on the outside of the air guider opening. The protective device and propeller fan are inserted in the depth direction of the air guider opening because the structure is such that the protector and the propeller fan are inserted through the air guider opening and fixed by rotating counterclockwise or clockwise around the motor shaft. can be installed more closely together. Furthermore, work efficiency is improved because the protective device can be installed and removed by rotating it, and the fixing metal fittings can absorb the force in the axial direction of the motor shaft that acts on the protective device, preventing it from falling or vibrating. This has various advantages, such as the protection device not coming off due to impact.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway plan view showing the structure of a conventional air conditioner, Fig. 2 is a partially cutaway side view of the same air conditioner, and Fig. 3 is a partially cutaway side view of the same air conditioner. 4 is a partially cutaway front view of FIG. 3, FIG. 5 is a perspective view of essential parts of a blower protection device according to an embodiment of the present invention, and FIG. 6 is an installation of the same protection device. A partially cutaway perspective view of an air conditioner showing its condition;
FIG. 7 is a detailed view showing section G in FIG. 6, and FIG. 8 is a partial perspective view showing another embodiment of the present invention. 1...Air conditioner body, 10...Motor, 11
...Propeller fan, 12...Air guider, 13
...Motor shaft, 14...Air guider opening, 15...Left and right regulating section, 16...Lower regulating section,
17...protective device, 18...bearing section, 22...fixing metal fittings.

Claims (1)

[Claims] 1 At the circumference of the opening of the air guider constituting the blower, a protective device is provided that connects the circumference of the air guider opening and the motor shaft, and a lower part that regulates the position of this protective device in the diametrical and lateral directions with respect to the motor shaft is provided. Further, the left and right regulating parts and the lower regulating part are connected near the motor shaft, and there is also provided a central part on the outside of the air guide opening at a position opposite to the center of the opening in the diametrical direction and the left and right directions. A blower protection device for an air conditioner, wherein a fixing fitting having an insertion opening in the direction is provided, and the left and right regulating portions and the lower regulating portion are fitted to the fixing fitting by passing between the blades.