JPH0436311B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Field of Industrial Application The present invention relates to an air conditioner incorporating two cross flow fans.

(b) Prior Art Conventionally, this type of air conditioner was constructed as shown in Figure 1. In Fig. 1, 1 is a window type air conditioner that is installed in a window using an installation device (not shown), and 2 is an S-shaped casing that connects the inside of the housing 3 to an indoor room A and an outdoor room B. It is divided into An indoor heat exchanger 4 and an indoor fan 5 are built into the indoor chamber A, and an outdoor heat exchanger 6 and an outdoor fan 7 are built into the outdoor chamber B, respectively.

8 is bored in the center of the casing, and the indoor chamber A
An opening 9 communicates with the outside room B, and 9 is this opening 8.
This is a damper that is placed in the center and rotates as shown by the broken line.

Then, during cooling or heating operation, damper 9 opens 8
, and rotate the indoor fan 5 and the outdoor fan 7. Therefore, the indoor air sucked in from the indoor air intake port 10 undergoes heat exchange with the refrigerant flowing through the indoor heat exchanger 4, and is discharged from the indoor exhaust port 11 as shown by the solid arrow. In addition, outdoor air sucked in from the outdoor intake port 12 also undergoes heat exchange with the refrigerant flowing through the outdoor heat exchanger 6, and is discharged from the outdoor exhaust port 13 as shown by the solid arrow.

On the other hand, during intake operation, the damper 9 is set to the broken line state, the opening 8 is opened, and the indoor fan 5 is rotated.

Therefore, the outdoor air taken in from the outdoor intake port 12 passes through the opening 8 as indicated by the broken line arrow and reaches the indoor exhaust port 11.
is discharged into the room.

Damper 9 of air conditioner 1 configured in this way
was arranged in the opening 8 of the casing 2. That is, the indoor surface 14 of the casing 2 protruded by the thickness of the damper 9. Also, casing 2
The outdoor surface 15 of is recessed by the depth of the opening 8. Therefore, the surface of the casing 2 did not have a smooth shape. For this reason, during cooling/heating operation, the air guided into the casing 2 hits the damper 9 or gets caught in the recess 16 of the opening 8, increasing ventilation resistance.

(c) Purpose of the invention The object of the invention is to provide a casing with a smooth surface to reduce ventilation resistance and to enable ventilation operation.

(d) Structure of the invention The casings and partition plates of the two cross flow fans are integrally formed, and the top plate provided on the partition plates has a ventilation hole connecting the indoor chamber and the outdoor chamber, and this ventilation hole. The damper opens and closes the damper.

(E) Embodiment In FIG. 2, reference numeral 20 denotes an integrated air conditioner that is installed in a window or the like, and the housing is composed of a main body 21 and a front panel 22 that covers the front of this main body 21. A suction port 23 and a discharge port 24 are formed in the front panel 22, as shown in FIG.

The main body 21 is then assembled as shown in FIG. 37 is the unit bottom plate, 38 is the main partition plate, and the rising wall 4 of the recess 39 of the unit bottom plate 37 is
It will be erected along 0. 41 is a sub-division plate, and the right piece 42 of this sub-division plate 41 is fixed to the center flange piece 43 of the main partition plate 38. The main partition plate 38 and the sub partition plate 41 partition the unit bottom plate 37 into the front and rear.

A compressor 44 is placed on the convex portion 45 of the bottom plate 37 of the unit.

A first partition plate 54 is placed on the intermediate bent piece 55 of the main partition plate 38. An indoor fan motor 58 is fitted into the first partition plate 54 via an indoor drain pan 56 and a lower cushion rubber 57. 5
Reference numeral 9 denotes an indoor heat exchanger that functions as an evaporator during cooling and as a condenser during heating, and is located above the indoor drain pan 56. Reference numeral 60 denotes a motor plate through which the shaft 61 of the indoor fan motor 58 passes, and the indoor fan motor 58 is held between an upper cushion rubber 62 and a lower cushion rubber 57. 63 is the guide trough, the first
It protrudes to the left rear of the partition plate 54 and passes through the notch 64 of the sub-division plate 41 to connect the unit bottom plate 3.
It extends to the rear of 7. Drain water dripping from the drain port 65 of the indoor drain pan 56 is made to flow into the guide gutter 63. 66 is a soundproof cover, and this cover 66 and the main partition plate 38
and the first partition plate 54 surround the compressor 44.

67 is an indoor cross flow fan, whose lower shaft (not shown) is connected to the shaft 61 of the indoor fan motor 58.
Connect with. Reference numeral 68 designates the indoor fan casing of this indoor cross-flow fan 67, which is placed from above the sub-compartment board 41 by placing the left part 69 against the cut-out piece 70 of the sub-compartment board 41 and the right face 71 against the right face 72 of the sub-compartment board 41. This indoor fan casing 68 is inserted.

Reference numeral 78 denotes an electrical box containing electrical components (not shown) for controlling the air conditioner, and the upper piece 79 is screwed to the front surface 80 of the first partition plate 54.

Reference numeral 81 denotes a motor stand for the outdoor fan motor 82. Cushion rubbers 83 and 84 are attached to the upper and lower sides of the outdoor fan motor 82, respectively, and the fan motor 82 is fitted into the recess 39 on the left side of the unit bottom plate 37. suppress. Then, the leg piece 85 of this motor stand 81 is fixed to the upper surface 86 of the recess 39 of the unit bottom plate 37. 87 is an outdoor fan casing; insert this outdoor casing 87 along the back side of the main partition plate 37, and insert the lower end (not shown) of the outdoor fan casing 37 into the motor stand 81.
The right piece 89 is positioned on the bent piece 90 of the sub-partition plate 41 between the cut-up piece 88 and the back surface of the main partition plate 38 . Reference numeral 93 denotes an outdoor cross flow fan whose lower shaft (not shown) is connected to the shaft 94 of the outdoor fan motor 82 .

95 is an outdoor drain pan; 96 is an outdoor heat exchanger that functions as a condenser during cooling and as an evaporator during heating; and 97 is a stabilizer fixed to the left side of this outdoor heat exchanger 96. A protrusion 98 extends from the center of the outdoor drain pan 95, and the protrusion 98 receives drain water dripping from the guide gutter 63 described above. A rear panel 99 covers the rear of the outdoor heat exchanger 96, and has a suction port 100 facing the outdoor heat exchanger 96, and a discharge port 101 facing the outdoor cross flow fan 93.

102 is a top plate, main partition board 38, sub partition board 4
1. After the indoor/outdoor fan casings 68, 87, indoor/outdoor cross flow fans 67, 93, etc. are assembled, the top plate 102 is covered from above. A first ventilation opening 103 is formed by cutting out the left front corner of the top plate 102. This first ventilation port 103 is located above the U-bend 104 of the indoor heat exchanger 59 as shown in FIG.
The upper chamber 1 of the front chamber 105 and the top plate 102 where
06 to constitute an indoor chamber a. 10
Reference numerals 7 and 108 denote bearing mounting holes, into which bearings 109 and 110 of the indoor and outdoor cross flow fans 67 and 93 are engaged. 111 is a heater mounting hole into which a heater member 112 is inserted; when this heater member 112 is inserted into the heater mounting hole 111, the heater 113
The slide piece 114 to which the slide piece 114 is attached is engaged with the guide portion 115 of the sub-compartment plate 41. 116 is a positioning hole of the indoor fan casing 68, into which a projection 117 on the upper surface of the indoor fan casing 68 is inserted. Numeral 118 is a positioning hole in the outdoor fan casing 89, into which a projection (not shown) on the upper surface 119 of the outdoor fan casing 89 is inserted in the same way as the projection 117 of the indoor fan casing 68. 120 is a damper mounting hole (second ventilation port) to which a damper member is attached.

The damper member 121 is composed of parts shown in FIGS. 6 and 7. A frame body 122 has a V-shaped cross section, and a flange piece 138 that is screwed onto the outer periphery of the damper mounting hole 120 is formed around the frame body. An opening 125 is bored in the left slope 124 of the recess 123 of the frame 122. A damper 126 has a sealing material 127 attached to its lower surface, and its lower surface is positioned in the opening 125. Protrusions 128 are formed on the left and right sides of this damper 126.
are engaged with the holes 130 in the left and right side surfaces 129 of the frame body 122. In addition, there is a mounting hole 1 in the center of the damper 126.
A flange piece 132 with holes 31 is formed. 133 is a slide shaft, 134 is a solenoid for moving this slide shaft 133, and this solenoid 134 is fixed to the right slope 135 of the frame 122. 136 is an interlocking shaft that is inserted into the mounting hole 131 of the damper 126 and the insertion hole 137 of the slide shaft 133. As shown in FIGS. 8 and 9, the damper member assembled in this way has the mounting hole 13 of the damper 126 located at the position of dimension R centering on the protrusion 128.
1 and the center of the interlocking shaft 136 are located. From the outer diameter dimension of this interlocking shaft 136, the damper 1
The inner diameter dimension of the mounting hole 131 of No. 26 is set larger by a clearance C. Therefore, when the solenoid 134 is energized, the slide shaft 133 first moves to the upper right. At this time, even if the slide shaft 133 moves, the damper 126 remains stationary by the clearance C. When the slide shaft 133 moves upward and to the right by more than the clearance C, the damper 126 rotates about the protrusion 128 for the first time, and the opening 1
25 is in an open state (the state indicated by the dashed-dotted line in FIG. 7 and FIG. 9). On the other hand, solenoid 134
When the power to the damper 126 is stopped and the force that holds the slide shaft 133 in the shaft hole 139 of the solenoid 134 is cut off, the weight of the damper 126 causes the damper 12
6 rotates to the left about the protrusion 128, and the opening 125 is closed (solid line state in FIG. 7 and FIG. 8).

When the indoor cross-flow fan 67 and the outdoor cross-flow fan 93 are rotated to perform indoor cooling/heating operation, the indoor air sucked in from the indoor suction port 23 flows through the main partition plate 38 as shown by the solid line arrow in FIG. The air is smoothly guided by the indoor fan casing 68 and discharged from the indoor discharge port 24. In addition, outdoor air sucked in from the outdoor suction port 100 is also smoothly guided by the outdoor fan casing 87 and discharged from the outdoor discharge port 101 as indicated by the solid line arrow in FIG.

If the indoor air becomes contaminated during such cooling/heating operation, the solenoid 134 is energized to move the damper 126 and open the opening 125. Then, as shown in Fig. 2, the indoor suction port 2
The indoor air sucked in to the left of 3 is transferred to the indoor heat exchanger 5.
The top plate 102 passes through the vicinity of the U-bend part 104 of 9.
The air is guided above the top plate 102 through the ventilation opening 103 . Thereafter, it is discharged from the opening 125 to the outside through the outdoor chamber b. In this way, ventilation can be performed while performing cooling and heating operations.
At this time, the indoor air discharged outdoors only passes near the U-bend portion 104 of the indoor heat exchanger 59, so the amount of heat exchanged between this indoor air and the refrigerant flowing inside the indoor heat exchanger 59 is small. .

Of course, only ventilation operation can be performed by rotating only the outdoor cross flow fan 93 and opening the opening 125.

(f) Effects of the invention A cross flow fan is used as an indoor fan and an outdoor fan, and the casing and partition plate of these cross flow fans are integrally formed. The casing has a smooth shape that quickly guides the air sucked in by the crossflow fan. It can be sent. Furthermore, there is no need to form a damper in this casing, and the casing can be constructed integrally to keep heat loss to a minimum.

Furthermore, since a damper is provided on the top plate, this damper can be operated even during cooling or heating operation to provide ventilation.

[Brief explanation of drawings]

Fig. 1 is a cross-sectional view showing a conventional air conditioner, Figs. 2 to 9 show an air conditioner according to an embodiment of the present invention, and Fig. 2 shows the internal structure with the front panel partially cut away. Fig. 3 is a perspective view showing -' of Fig. 2.
4 is an exploded perspective view, FIG. 5 is a -' sectional view of FIG. 2, FIG. 6 is an exploded perspective view of the damper member, FIG. 7 is a vertical sectional view of the damper member, and FIG.
9 are enlarged sectional views of main parts of the damper member showing different states. 67...Indoor cross flow fan, 68...Indoor fan casing, 87...Outdoor fan casing, 93...Outdoor cross flow fan, 102
...Top plate, 123...Recess, 126...Damper.

Claims (1)

[Claims] 1. Two cross-flow fans provided at the diagonal corners of the main body, a partition plate and a top plate that partition the two cross-flow fans into an indoor chamber and an outdoor chamber that accommodate the two cross-flow fans, respectively, and a top plate on both sides of the interior and exterior. 1. An air conditioner comprising a heat exchanger placed in each chamber, and the top plate is provided with a ventilation opening that communicates both the indoor and outdoor chambers, and a ventilation damper.