JPH05738Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to the structure of a heat exchange unit to which an air filter is attached.

(b) Prior Art Conventionally, as a mounting structure for an air filter in a heat exchange unit, there has been one shown in Japanese Utility Model Publication No. 60-38096.

This content consists of an air filter consisting of a synthetic resin net and a frame that reinforces this net, and when the air filter is inserted into the insertion opening of the heat exchange unit, the air filter is inserted along the front of the drain pan inside the heat exchange unit. It slides and is guided to the filter guide.

(c) Problems to be solved by the invention If the size of the air filter is large, it will easily deform because it is made of synthetic resin, and this deformation may make it difficult to insert the air filter into the insertion slot, for example. Even if the air filter could be inserted, there was a risk that the air filter would not be placed in the designated location. Furthermore, when the air filter is removed from the insertion port, there is a risk that dust from the air filter net may easily adhere to the heat exchanger or drain pan in the heat exchange unit due to the deformation of the air filter.

Even if the size of the air filter is large, this invention
The purpose of this invention is to suppress the deformation of the air filter to a small extent and to enable easy installation and removal of the air filter.

(d) Means for Solving the Problems In order to achieve this object, the present invention provides the air filter with a reinforcing piece along the insertion direction of the air filter, and on the other hand, the air filter is provided on the front side of the drain pan on which the air filter slides. A protruding piece is provided on which the reinforcing piece touches. or,
A plurality of reinforcing pieces and a plurality of protruding pieces are provided.

(E) Operation When the air filter is slid on the front surface of the drain pan, the reinforcing piece of the air filter slides over the protruding piece of the drain pan and is housed in a predetermined location within the heat exchange unit.

(F) Embodiment Figure 1 is an exploded perspective view of an indoor heat exchange unit for a separate air conditioner showing an embodiment of the present invention. It is composed of a front cover 3 that is The main body 2 has edges 5 of both left and right side surfaces 4 projecting forward beyond an edge 7 of the top surface 6 so that the cross section has a substantially U-shape. The side surface 4 of the main body 2 is provided with a stepped portion 8 extending in the vertical direction, and the width A of the rear portion 9 is larger than the width B of the front portion 10.

11 is a cross flow fan housed in this main body 2, 12 is a motor that drives this fan,
The rotating shaft 13 is the mounting part 1 of the cross flow fan 11
Combined with 4. The rotating shaft 15 of this fan 11 is connected to the left rising piece 1 of the main body 2 via a bearing 16.
7, while the motor 12 is fitted into the recess 19 of the main body 2. 20 is an indoor heat exchanger, and both ends thereof are fixed to the left rising piece 17 and the right rising piece 21 of the main body 2. 22 is the electrical box,
Main body 2 with electrical parts (not shown) stored.
It is installed in the electrical equipment room 23 of. 24 is a drain pan placed below the indoor heat exchanger 20.

The exterior cover 4 covers the above-mentioned equipment,
It has a rounded shape from the front to both sides. The upper surface 25 of this cover 4 projects further rearward than the rear edges 27 of both side surfaces 26 thereof.
The shape of the upper surface is an ellipse as a whole, and a large number of first suction ports 28 are provided in the lateral direction of the ellipse. Further, on the right side of the first suction port, a second suction port 29 and a heat radiation port 30 are provided side by side. Reference numerals 31 and 32 are wind guide plates installed on the back side of the front cover, which connect the front cover 4 to the main body 2.
When the wind guide plates 31 and 32 are attached to the U-shaped tube 33 of the heat exchanger 20, the rear edges of the wind guide plates 31 and 32 come into contact with the U-shaped tube 33 of the heat exchanger 20, so that the air sucked in from the first suction port 28 is guided to the heat exchanger 20. . 34 is a ventilation hole provided in the upper part of the right wind guide plate 32, so that the air above the electrical equipment box 22 is guided to the heat exchanger 20 through this ventilation hole 34 (described later). .

Reference numeral 35 denotes a discharge port provided at the lower part of the front cover 4, to which a wind direction changing blade (not shown) is attached. 36 is an air filter, which is inserted through the insertion port 43 above the discharge port 35.

When the heat exchange unit 1 with such a configuration is assembled, the depth dimension C of the first suction port 28 should be approximately half the depth dimension D of the heat exchange unit 1 on the top surface, as shown in FIG. I can do it. Therefore, the opening area of the suction port 28 can be made relatively large, and the ventilation resistance of the suction port 28 can be reduced. 37
38 is a refrigerant pipe, and 38 is a drain pipe which is raised along the stepped portion 8 of the side surface 4 of the main body 2 when the heat exchange unit 1 is packed. The depth D of the heat exchange unit 1 is prevented from increasing due to the refrigerant pipe 37 and the drain pipe 38.

FIG. 3 is a longitudinal sectional view of this heat exchange unit 1.
Due to the rotation of the cross flow fan 11, indoor air flows as indicated by the solid line arrow. 39 is drain pan 2
A heat insulating material attached to the lower part of the cross flow fan 11 serves as a tongue part of the cross flow fan 11. Note that this heat insulating material 39 is omitted in FIG. This drain pan 2
Two protruding pieces 40 are provided on the front surface of 4 (see FIG. 1). 41 is a filter guide rail, which is placed on the left and right wind guide plates 31 and 32;
Its lower end 42 is connected to a protruding piece 40 of the drain pan 24. Then, the air filter 36 is inserted through the insertion opening 43 of the front cover 3. This air filter 36 is connected to a net 44 as shown in FIG.
, a frame 45 for reinforcing the net 44, and two reinforcing pieces 46 extending vertically (in the direction in which the air filter 36 is inserted). Here this 2
The dimension E between the reinforcing pieces 46 of the book substantially matches the dimension F between the protruding pieces 40 of the drain pan 24 (see FIG. 1). Therefore, this air filter 36 is inserted into the insertion port 4.
When inserted from 3, each of the two reinforcing pieces 46
The reinforcing piece 46 coincides with the two protruding pieces 40, and the reinforcing piece 46 coincides with the protruding piece 40.
The air filter 36 is guided to the guide rail 41 while sliding on the front surface of the air filter 36. Therefore, the risk of the net 44 touching the front surface 47 of the drain pan 24 is reduced. 48 is a vertical blade erected at the lower part of the casing wall 49 of the cross flow fan 11, and 50 is a support column, which projects forward of the discharge port 35. 5
Reference numeral 1 denotes a horizontal blade supported by the support column 50, which rotates about the support shaft 52 as shown by the broken line arrow to open the discharge port 3.
This is to change the vertical direction of the air discharged from 5. In addition, in FIG. 1, these horizontal blades 51 and vertical blades 4
8 was omitted.

Figure 4 is a left side view of this heat exchange unit 1.
The above-mentioned drain pipe 38 and refrigerant pipe 37 are connected to the notch 5.
It is extended from 3. FIG. 5 is a front view of this heat exchange unit 1, in which the drain pipe 38 is exposed from the left side surface 4. Here, heat exchange unit 1
When packing, the drain pipe 38 and refrigerant pipe 37 are arranged along the left side surface 4 of the heat exchange unit 1 as shown in FIGS. 4 and 5, and the refrigerant pipe 37 and drain pipe 38 are It is made not to protrude backward from the back surface (see Figure 2). Therefore, the depth dimension when packaging the heat exchange unit 1 can be reduced.

FIG. 6 is a perspective view of the electrical equipment box 22, in which a transformer (not shown) is housed on the back side 53 of the box 22, and a printed circuit board (not shown) is placed on the front side 54. Here, the upper surface of this electrical equipment box 22 is a rising piece 5.
5 is provided, and the upper surface is divided into a wind guide section 56 and a heat radiation section 57 by this rising piece 55. The heat radiation portion 57 is provided with an opening 58 through which heat radiation from a transformer or the like is released. On the other hand, the wind guide portion 56 has a guide piece 59 extending on its side, and this guide piece 59 is provided with a mounting hole 60. A detector 61 for detecting indoor temperature is inserted into this mounting hole 60, and by fitting a lead wire 62 connected to this detector 61 into a groove 63 of the hole 60, the detector 61 is hooked into the groove 63. This prevents the detector 61 from slipping out from the mounting hole 60. This lead wire 62 passes below the guide piece 59 and is connected to a printed circuit board (not shown) in the electrical equipment box 22.

The relationship between the electrical equipment box 22 and the heat exchange unit 1 is as shown in FIG. . Therefore, heat from the transformer and the like is radiated from the opening 58 of the electrical equipment box 22 to the outside of the heat exchange unit 1 through the heat radiating port 30. on the other hand,
Due to the rotation of the cross flow fan 11 described above, room air is drawn from the first suction port 28 to this unit 1.
However, some of the indoor air is guided to the second suction port 29 and then flows along the guide piece 59. Here, the indoor temperature is detected by the detector 61. After that, this air is transferred to the right wind guide plate 32.
of the heat exchanger 2 through the ventilation holes 34 (see Fig. 1).
I am led to 0. In this way, the rising piece 55 provided on the upper surface of the electrical equipment box 22 separates the ventilation passage through which indoor air is guided to the guide piece 59 from the ventilation passage for heat radiation air.

(g) Effects of the invention As described above, in the present invention, when installing or removing an air filter, the reinforcing piece of the air filter along the installation or removal direction slides on the protruding piece on the front side of the drain pan. Therefore, this work can be done smoothly. In particular, when removing the air filter, there is little risk that the net of the air filter will directly touch the front surface of the drain pan, so it is possible to prevent dust from the net from adhering to the front surface of the drain pan.

Furthermore, by providing a plurality of protruding pieces and a plurality of reinforcing pieces on each of the drain pan and air filter, and setting the distance between these protruding pieces and the distance between these reinforcing pieces to be the same, even if the air filter becomes larger, This allows the air filter to be installed and removed smoothly.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is an exploded perspective view of a heat exchange unit, Fig. 2 is a top view of the same unit, Fig. 3 is a longitudinal cross-sectional view of the same unit, and Fig. 4 is the same FIG. 5 is a left side view of the unit, FIG. 5 is a front view of the unit, and FIG. 6 is a perspective view of an electrical equipment box housed in the unit. 20...Heat exchanger, 24...Drain pan, 28
...(Air) suction port, 36...Air filter, 4
0... Protruding piece, 44... Net, 46... Reinforcing piece, E... Distance between a plurality of reinforcing pieces, F... Distance between a plurality of protruding pieces.

Claims (1)

[Claims for Utility Model Registration] 1. An air suction port, a heat exchanger located on the leeward side of this suction port, a drain pan located below this heat exchanger, and a device that slides along the front surface of this drain pan. and an air filter disposed between the suction port and the heat exchanger, the air filter comprising a net and a reinforcing piece provided along the insertion direction of the air filter and reinforcing the net. A heat exchange unit characterized in that a protruding piece corresponding to a reinforcing piece of the air filter is provided on the front surface of the drain pan. 2. The heat exchange unit according to claim 1, wherein the drain pan and the air filter are each provided with a plurality of protruding pieces and a plurality of reinforcing pieces.