JP3854181B2 - Air conditioner indoor unit - Google Patents

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to an indoor unit of an air conditioner, and particularly relates to simplification of assembly work and reduction of mold costs.
[0002]
[Prior art]
As shown in FIG. 5, the indoor unit of the air conditioner accommodates a heat exchanger 103, a blower fan 104, a blower motor 105, a drain pan 106, an electrical component storage box 107 and the like between a front panel 101 and a rear plate 102. It is configured. The rear plate 102 is integrally molded to cover the front panel 101, and the rear plate 102 is sequentially assembled with a blower fan 104, a blower motor 105, a heat exchanger 103, a drain pan 106, an electrical component storage box 107, and the like. 101 was assembled to cover the front.
[0003]
[Problems to be solved by the invention]
However, in order to guide the pipe 108 of the heat exchanger 103 to the rear side of the rear plate 102 during the assembly operation, the operation of passing the pipe 108 through the hole 109 provided in the rear plate 102 requires a complicated operation.
Further, since the molding die for the back plate 102 is a very large die, it is necessary to reduce the cost due to the cost of creating the die.
In addition, in order to make the indoor unit compact, it is required to efficiently store electrical components.
[0004]
[Means for solving problems]
This invention pays attention to this point and solves the above-mentioned drawbacks. In particular, in the indoor unit of an air conditioner in which the structure is housed between a front panel and a rear plate, a heat exchanger, a blower fan, etc. are stored. divided into two rear plate to the right and left, the plate to the blower motor mounting portion after the one that is the divided together comprise integrally formed integrally with the electrical equipment storage box on the plate after the other split portion, after the other When the plate is attached to one rear plate, the blower motor is pressed by a recess provided in the electrical component storage box, and the blower motor is fixed between the blower motor attachment portion and the recess .
[0005]
Further, in an indoor unit of an air conditioner that houses a heat exchanger, a blower fan, etc. between a front panel and a rear panel, a front suction port is provided at the upper front of the front panel, and a blower is provided below the front suction port. An outlet is provided, and the heat exchanger is arranged in a reverse V shape with a rear heat exchanger positioned opposite the rear plate and a front heat exchanger positioned opposite the front suction port, and the rear plate is Dividing into left and right parts, a rear dew receiving part for receiving dew condensation water generated by the rear heat exchanger and a part of the side wall of the indoor unit are integrally formed on one of the divided rear plates. A part of the side wall of the electrical component storage box and the indoor unit is integrally formed on the rear plate, and when the other rear plate is attached to one rear plate, the blower motor is pressed by a recess provided in the electrical component storage box. The blower motor is fixed between the blower motor mounting portion and the recess .
[0006]
DETAILED DESCRIPTION OF THE INVENTION
By dividing the rear plate 2 into left and right, the assembly of the heat exchanger 4 and the heat exchange pipe 9 is simplified, the assembly cost is reduced, and the size of the left and right rear plates 2a and 2b is reduced, making the mold Cost can be reduced.
Further, by integrally molding the electrical component storage box 10 with the right rear plate 2b, the number of parts is reduced and the raw material of plastic is also reduced.
[0007]
【Example】
DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes an indoor unit of a separate type air conditioner, and a housing is formed by a rear plate 2 and a front panel 3 in the front. A heat exchanger 4 and a blower fan 5 are provided.
The heat exchanger 4 is a fin tube type heat exchanger, and a rear heat exchanger 4a facing the rear plate 2 and a front heat exchanger 4b facing the front panel 3 are positioned in an inverted V shape.
[0008]
Further, the front heat exchanger 4b is provided by being bent in multiple stages along the front panel 3, and a front drain pan 6 is provided below the front heat exchanger 4b, and is generated in the front heat exchanger 4b. To receive condensed water.
A rear drain pan 7 is formed integrally with the rear plate 2 at the lower portion of the rear heat exchanger 4a.
[0009]
The rear plate 2 is provided with a blower fan 5, a heat exchanger 4 and the like, and a left rear plate 2a in which the left side, top surface, and bottom side wall 8a of the indoor unit 1 are integrally formed, and an electrical component housing in which the front side is open. The box 9 is integrally formed, and the right side plate 2b of the indoor unit 1 and the right rear plate 2b in which the side walls 8b of the top surface and the bottom surface are integrally formed are divided into right and left.
[0010]
A heat exchange pipe 10 is welded to the right end of the heat exchanger 4, and the heat exchange pipe 10 is easily led from the heat exchanger 4 attached to the front side of the left rear plate 2a to the back side of the left rear plate 2a. It will be.
[0011]
Further, a lattice-shaped upper suction port 11 is provided on the upper surface of the side wall 8a of the left rear plate 2a, and a rear drain pan 7 also serving as a stabilizer for the crossflow type blower fan 5 is provided at the center. Is provided with an air guider 12 for the blower fan 5.
[0012]
A bearing mounting portion 14 for the bearing 13 of the blower fan 5 is provided on the left side of the air guider 12, and a motor mounting portion 16 for mounting the blower motor 15 is provided on the right side of the air guider 12.
A plurality of screw holes 17 are provided at the right ends of the blower motor mounting portion 16 and the left rear plate 2a. The screw 18 attaches the right rear plate 2b to the left rear plate 2a and integrally forms the right rear plate 2b. The blower motor 15 is pressed and fixed by the concave portion 9a formed from the left side surface to the back surface of the electrical component storage box 9 thus formed.
[0013]
At the center of the front panel 3, an open panel 20 having a horizontally long slit-shaped front suction port 19 is provided. The front panel 3 is attached to the front panel 3 with a shaft 21 provided on the left and right of the panel 20 as a fulcrum. A horizontally long air outlet 22 is provided on the bottom surface of the front panel 3 from the lower side of the mouth 19, and the upper air inlet 11 is provided on the upper surface of the rear plate 2 and the front panel 3 in order to compensate for an opening area that is insufficient in the front air inlet 19. Provided.
[0014]
The air outlet 22 is provided with a horizontal blade 24 for controlling the wind direction in the vertical direction and a left and right wind direction plate 25 for controlling the wind direction in the left and right direction. The horizontal blade 24 has a rotation shaft 26 at the left and right and the center of the horizontally long flat resin plate. The louver motor 27 changes the angle of the horizontal blades 24 to direct the vertical direction of the blown wind in a preferred direction, and generally operates in the horizontal direction during cooling operation and downward in heating operation. By automatically closing the air outlet 22 in a lid shape when the operation is stopped, the appearance design of the indoor unit 1 is improved clearly.
[0015]
The left and right wind direction plate 25 is attached to the lower end of the air guider 12 and can manually direct the left and right direction of the blown wind in the desired direction.
[0016]
The assembly procedure of the indoor unit 1 will be described. First, the bearing 13 is attached to the bearing attachment portion 14 of the left rear plate 2a, the rotating shaft of the blower fan 5 is inserted into the bearing 13, and the blower motor 15 is screwed to the blower fan 5. The fan motor 15 is temporarily fixed by fitting the fan motor 15 into the motor mounting portion 16.
[0017]
Next, a set of the heat exchanger 4 in which the heat exchange pipe 8 is brazed to the heat exchanger 4 in advance is assembled on the rear heat exchanger 4a on the rear drain pan 7 on the left rear plate 2a, and the heat exchange pipe 10 is placed on the left rear. It is located on the back side of the plate 2a. At this time, since there is no frame or part that hinders the work on the right side of the left rear plate 2a, the work can be easily performed.
Next, the front drain pan 6 is attached to the lower part of the front heat exchanger 4b by screws or fittings.
[0018]
Thereafter, the rear plate 2 is completed by screwing the right rear plate 2b, in which electrical components such as a printed circuit board are incorporated in the electrical component storage box 9 in advance, to the left rear plate 2a with screws 18, and the right rear plate 2b. The blower motor 15 is securely attached to the motor attachment portion 16 by being pressed against the back surface of the electrical component storage box 9 formed integrally with the motor.
[0019]
Next, the front panel 3 covers the entire rear plate 2 to complete the assembly of the indoor unit 1. Further, the upper and bottom side walls 8a and 8b of the left rear plate 2a and the right side plate 2b are fixed so as to be flush with each other after assembly, and the appearance is not impaired.
[0020]
By dividing the rear plate 2 into left and right in this way, the assembly work can be simplified and the assembling cost can be reduced, and the left and right rear plates 2a and 2b are reduced in size, thereby creating a mold. Costs can be reduced and the mold creation period can be shortened.
Further, by integrally molding the electrical component storage box 9 with the right rear plate 2b, the number of parts can be reduced and the raw materials of the plastic can be reduced, so that the whole indoor unit 1 can be made compact.
[0021]
【The invention's effect】
As described above, according to the present invention, the concave portion formed from the left side surface to the back surface of the electrical component storage box formed integrally with the right rear plate together with the attachment of the right rear plate to the left rear plate with screws. Since the blower motor is pressed and fixed, the assembling work is simplified and the assembling cost can be reduced.
In addition, it is possible to reduce the cost for creating the back plate mold and shorten the period for creating the mold.
Also, by integrally molding the electrical component storage box with the right rear plate, the number of parts can be reduced and the raw materials of plastic can also be reduced.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view of an embodiment of the present invention.
FIG. 2 is an enlarged perspective view of the main part.
FIG. 3 is an enlarged perspective view of the main part.
FIG. 4 is an enlarged sectional view of a side surface in which the structure is simplified.
FIG. 5 is an exploded perspective view of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Indoor unit 2a Left rear board 2b Right rear board 3 Front panel 4 Heat exchanger 9 Electrical component storage box 10 Heat exchange piping 15 Blower motor 16 Motor attachment part

Claims (2)

In an indoor unit of an air conditioner in which a heat exchanger, a blower fan, etc. are housed between a front panel and a rear plate, the rear plate is divided into left and right parts, and a blower motor is provided on one of the divided rear plates. The mounting part is integrally provided, and the electrical component storage box is integrally formed on the other divided rear plate, and when the other rear plate is attached to the one rear plate, the concave portion provided in the electrical component storage box An indoor unit of an air conditioner that presses a blower motor and fixes the blower motor between the blower motor mounting portion and the recess . In an indoor unit of an air conditioner in which a heat exchanger, a blower fan, etc. are housed between a front panel and a rear plate, a front suction port is provided at the upper front surface of the front panel, and a blower outlet is provided below the front suction port. The heat exchanger has a rear heat exchanger located opposite the rear plate and a front heat exchanger located opposite the front suction port in an inverted V shape, and the rear plate is A rear dew receiving part for receiving the dew condensation water generated by the rear heat exchanger and a part of the side wall of the indoor unit are integrally formed on one of the divided rear plates. The electric component storage box and a part of the side wall of the indoor unit are integrally formed on the plate, and when the other rear plate is attached to one of the rear plates, the blower motor is pressed by a recess provided in the electric component storage box. , indoor air conditioner, characterized in that for fixing the blower motor between the blower motor mounting portion and the recess Knit.

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