JPH10122594A - Indoor machine of air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent air conditioning air from leaking from a flow passage for the air conditioning air by forming a flexible deformed part on divided one member of the air conditioning air flow passage on which a connection member is disposed, and bringing the deformed part into the divided other member with resilient restoring foce. SOLUTION: A flow passage 11 for air conditioning air is divided and constructed, and a connection part A is formed between a scroll part 5 and a lower side wall part 16. In the connection part A, a flexible deformed part 14 bent drawing an R on a reverse flow passage side is provided on the lower side wall part 16. The deformed part 14 becomes the R part bent to draw an arc as a whole and is formed into a thinner wall than the other part (body part) of the lower side wall part 16. In contrast, there are formed on the scroll part 5 a lap part 12 and an abutment wall part 13 extending to the reverse flow passage side. An outer side surface of the R part is pressed against the abutment wall part 13, and the deformed part 14 is brought into abutment with the abutment wall part 13 with resilient restoring force to construct the connection part A.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indoor unit for an air conditioner.

[0002]

2. Description of the Related Art As a conventional example of an indoor unit of an air conditioner,
For example, those described in Japanese Utility Model Laid-Open No. 59-110815 can be mentioned. In this indoor unit, an indoor heat exchanger is provided in a casing having a suction port on a front surface, and a fan rotor of a cross flow fan is arranged downstream of the indoor heat exchanger. A scroll portion is provided at the back of the fan rotor, and the scroll portion and the drain pan assembly form a flow passage for conditioned air connected to the air outlet. FIG. 1 is a schematic longitudinal sectional view showing an indoor unit of an air conditioner according to the present invention. Both the indoor unit shown in FIG. 1 and the conventional indoor unit shown in FIG. The point that the air passage is formed is the same. That is, the air passage 11 for the conditioned air is divided by the scroll part 5 provided on the back of the fan rotor 3 and the drain pan assembly 4 attached downstream of the scroll part 5. Therefore, the connection portion A between the lower wall portion 16 and the scroll portion 5 of the drain pan assembly 4 is provided in the flow passage 11.
Is formed.

FIG. 3 is an enlarged sectional view showing the connection portion A in an indoor unit of a conventional air conditioner. As shown in the figure, in the connection portion A, a contact end portion 34 bent toward the counterflow passage side is provided on the lower side wall portion 16,
The scroll portion 5 is provided with a wrap portion 32 and a contact wall portion 33 extending toward the counterflow passage. The connecting portion A is configured by causing the contact end portion 34 to contact the contact wall portion 33 and covering the contact end portion 34 from the flow passage 11 side with the wrap portion 32. .

[0004]

However, the connecting portion A in the above-mentioned conventional indoor unit of the air conditioner is configured such that rigid bodies such as the contact end portion 34 and the contact wall portion 33 are brought into contact with each other. Have been. Therefore, the contact end 3
If there is a dimensional error in the contact wall portion 4 or the contact wall portion 33, the two portions 34, 33 contact in a certain portion, but the other portions 34, 33
A gap 36 is formed between the three, and there is a problem that the conditioned air leaks from the gap 36 as shown by the arrow in FIG. Further, at the end of the member where the contact end 34 or the contact wall 33 is formed, "warping" or "sink" is liable to occur at the time of molding. It was extremely difficult to reduce it.
Further, when the contact end portion 34 and the contact wall portion 33 are strongly pressed against each other in order to reduce the gap 36,
There was a problem that a squeak sound was easily generated between 4, 33. Further, in the connection portion A, the gap 36 is covered by the lap portion 32 from the flow passage 11 side, thereby reducing leakage of the conditioned air. However, the size of the wrap portion 32 is structurally limited, and it is difficult to provide the wrap portion 32 that can sufficiently reduce the leakage. On the other hand, as shown in FIG. 4, it is conceivable to adopt a measure of separately attaching a sealing material 35 between the contact end portion 34 and the contact wall portion 33. However, when such a separate member is provided, there is a problem that this causes a cost increase.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional drawbacks, and an object of the present invention is to reliably prevent conditioned air from leaking from a flow path of conditioned air by a simple structure. An object of the present invention is to provide a possible indoor unit of an air conditioner.

[0006]

Therefore, an indoor unit of an air conditioner according to the present invention is provided with an indoor heat exchanger 2, a blower fan, and a flow path 11 of conditioned air in a casing, and the drawn indoor air is supplied to the indoor unit. The conditioned air is converted into conditioned air in the indoor heat exchanger 2, and the conditioned air is pressure-fed into the room through the flow passage 11, and the flow passage 11 is divided and formed into divided members 16,5.
In an indoor unit of an air conditioner having a connection portion A between the connection portions A, a flexible deformed portion 14 is formed on one member 16 that is continuously provided, and the deformed portion 14 is connected to the other member 16. Characterized in that it is configured to abut against the member 5 by an elastic restoring force.

In the indoor unit of the air conditioner according to the first aspect,
The deformed portion 14 provided on one of the members 16 that divides the flow passage 11 is brought into contact with the other member 5 by elastic restoring force to connect the two members 16 and 5. Therefore, both members 16,
Even if there is a dimensional error between the five, it is possible to reliably prevent the leakage of the conditioned air from the flow passage 11 without using a separate member by absorbing the dimensional error in the deformation portion 14. Become.

In the indoor unit of the air conditioner according to the present invention, the deformable portion is provided with a radius at one end of the one member, and the outer surface of the radius is connected to the other member. 5 is characterized in that it is brought into contact with the contact wall portion 13 provided in the fifth embodiment.

[0009] In the indoor unit of the air conditioner according to the second aspect,
Since the outer surface of the round portion is brought into contact with the contact wall portion 13, the contact area between the deformable portion 14 and the contact wall portion 13 can be reduced.

The indoor unit of the air conditioner according to claim 3 is
The deformed portion 14 is formed by bending a round portion toward the counterflow passage, and the contact wall portion 13 is provided so as to protrude toward the counterflow passage.

[0011] In the indoor unit of the air conditioner according to the third aspect,
Since the deforming portion 14 and the contact wall portion 13 are provided on the counterflow passage side, it is possible to ensure smooth circulation of the conditioned air.

The indoor unit of the air conditioner according to the fourth aspect is characterized in that the deformed portion is formed to be thinner than the main body of the member 16 on which the deformed portion is formed.

[0013] In the indoor unit of the air conditioner according to the fourth aspect,
Since the deformed portion 14 is formed to be thin, the connection portion A can be sealed with a small force.

In the indoor unit of an air conditioner according to a fifth aspect, the deformable portion is made of a different material that is more flexible than the body of the member 16 on which the deformed portion is formed.
6 and is integrally formed.

In the indoor unit of the air conditioner according to the fifth aspect,
It has a simple configuration, and the connection portion A can be made with even smaller force.
Can be sealed.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of the indoor unit of the air conditioner of the present invention will be described in detail with reference to the drawings.

FIG. 1 is a schematic longitudinal sectional view showing the configuration of the indoor unit. In this indoor unit, the front suction port 6
Is provided, and an upper surface grill 9 having an upper surface suction port 7 is provided on the upper surface side of the main body, and the front grill 8, the upper surface grill 9 and the bottom frame 1 constitute a casing. I have. Inside the casing, an inverted V-shaped indoor heat exchanger 2 is provided behind the front grille 8, and a drain pan 15 for receiving drain generated in the indoor heat exchanger 2 is arranged below the inverted V-shaped indoor heat exchanger 2. I have. A fan rotor 3 of a cross flow fan (blowing fan) extending in a direction substantially perpendicular to the plane of the drawing is provided inside the V-shape of the indoor heat exchanger 2, and blown from the back side of the fan rotor 3. The scroll portion 5 is formed so as to smoothly extend toward the outlet 10. A lower wall portion 16 is connected to the scroll portion 5, and the drain pan 15, the scroll portion 5 and the lower wall portion 16 form a flow path 11 for conditioned air. That is, the flow passage 11 is divided and the connection portion A is formed between the scroll portion 5 and the lower wall portion 16. Although the drawing is a longitudinal sectional view and is not shown, the lower side wall portion 16 is formed integrally with the drain pan 15, and the drain pan assembly 4 is constituted by the both 16 and 15.

FIG. 2 is an enlarged sectional view showing the connecting portion A. As shown in the figure, in this connection portion A, a flexible deformed portion 1 which is bent in a round
4 is provided on the lower wall portion 16. The deformed portion 14 is made of a rubber-based material, and a so-called 2
It is integrally formed by color molding. Further, the deformed portion 14 is a radius portion which is curved so as to draw an arc as a whole, and is made thinner than the other portion (main body portion) of the lower wall portion 16. On the other hand, the scroll portion 5 is provided with a wrap portion 12 and a contact wall portion 13 extending toward the counterflow passage. Then, the outer side surface of the above-mentioned round portion is brought into contact wall portion 1.
3, the deformed portion 14 is brought into contact with the contact wall portion 13 by an elastic restoring force. Further, the connection portion A is configured by covering the contact portion with the wrap portion 12 from the flow passage 11 side.

When the cross-flow fan 3 shown in FIG. 1 is operated in the indoor unit having the above-described structure, a vortex is generated by the action of the cross-flow fan 3, and the vortex causes the front suction port 6 and the top suction. The room air is sucked through the mouth 7. The drawn indoor air is further heat-exchanged by the indoor heat exchanger 2 to become conditioned air. The conditioned air is blown out from the outlet 10 to the room again through the flow passage 11 while changing the flow direction to the front side along the scroll portion 5.

In the indoor unit, the deformable portion 14 is brought into contact with the contact wall portion 13 by the elastic restoring force at the connection portion A constituting the air-conditioned air flow passage 11. Therefore, even if there is a dimensional error between the deforming portion 14 and the contact wall portion 13, this can be absorbed by the deformation amount of the deforming portion 14. Then, the deforming portion 14 is brought into contact with the contact wall portion 13 by the elastic restoring force.
Therefore, the sealing of the connecting portion A and the prevention of the leakage of the conditioned air can be reliably performed. Further, the contact between the deforming portion 14 and the contact wall portion 13 is performed by pressing the outer surface of the round portion of the deforming portion 14 against the contact wall portion 13. Accordingly, the contact area between the deformed portion 14 and the contact wall portion 13 is reduced, and therefore, even if there is a portion that is strongly pressed due to a dimensional error or the like, generation of squeak noise can be reduced. Further, the deformed portion 14 and the contact wall portion 13 are provided on the counterflow passage side to ensure smooth flow of the conditioned air. The deformed portion 14 is formed to be thin and the lower wall portion 1 is formed.
It is formed of a material that is more flexible than the six main bodies. Therefore, the connection portion A can be sealed with a small force, and the assemblability and the assembling accuracy can be improved. And the deformed part 1
Numeral 4 is formed integrally with the lower wall portion 16 and does not require a separate member, so that the configuration can be simplified and the cost can be reduced.

Although the specific embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and can be implemented with various modifications within the scope of the present invention. For example, the shape and material of the deforming portion 14 are not limited to the above, and any shape may be used as long as it has flexibility and can be brought into contact with the contact wall portion 13 by elastic restoring force. In the above description, the present invention is applied to the connection portion A between the scroll portion 5 and the lower side wall portion 16. However, the present invention may be applied to other portions as long as it is between members constituting the air-conditioning air flow passage 11 separately. The effect of can be obtained.

[0022]

According to the indoor unit of the air conditioner of the first aspect, a simple structure without using any separate member is provided.
Leakage of conditioned air from the flow passage can be reliably prevented, and costs can be reduced.

In the indoor unit of the air conditioner according to the second aspect,
Since the contact area between the deformed part and the contact wall is reduced,
It is possible to reduce the generation of squeak noise.

Further, in the indoor unit of the air conditioner according to the third aspect, it is possible to secure a smooth flow of the conditioned air and maintain good use comfort.

In the indoor unit of the air conditioner according to the fourth aspect, since the connection portion can be sealed with a small force, it is possible to improve the assemblability and the assembling accuracy.

In the indoor unit of the air conditioner according to the fifth aspect, it is possible to further reduce costs and improve assemblability and assembling accuracy.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view of one embodiment of an indoor unit of an air conditioner of the present invention.

FIG. 2 is an enlarged sectional view of a connecting portion provided in the indoor unit.

FIG. 3 is an enlarged cross-sectional view of a connection portion provided in an indoor unit of a conventional air conditioner.

FIG. 4 is an enlarged cross-sectional view of a connection portion provided in an indoor unit of a conventional air conditioner.

[Explanation of symbols]

 Reference Signs List 2 indoor heat exchanger 3 fan rotor 5 scroll part 11 flow passage 13 contact wall part 14 deformation part 16 lower wall part A connection part

Claims (5)

[Claims] An indoor heat exchanger (2), a blower fan, and a flow path (11) for conditioned air are provided in a casing, and the drawn indoor air is converted to conditioned air in the indoor heat exchanger (2).
The conditioned air is pressure-fed into the room through the flow passage (11), and the flow passage (11) is divided and has a connection portion (A) between the divided members (16) and (5). In the indoor unit of the air conditioner, the connection portion (A) is:
One of the members (16) connected continuously has a flexible deformed portion (1).
4), and this deformed portion (14) is connected to the other member (5).
An indoor unit for an air conditioner, wherein the indoor unit is configured to be brought into contact with an elastic restoring force. 2. The deformation part (14) includes one member (1).
6) is protruded from the end thereof with a rounded portion, and the outer surface of the rounded portion is contacted with a contact wall (1) provided on the other member (5).
2. The method according to claim 1, wherein the contact is made to abut on (3).
Air conditioner indoor unit. 3. The device according to claim 1, wherein the deformed portion is formed by bending a round portion toward the counter-flow passage, and the contact wall portion protrudes toward the counter-flow passage. 2 indoor units of air conditioner. 4. The deforming portion (14) is provided with the deforming portion (1).
The indoor unit for an air conditioner according to any one of claims 1 to 3, wherein the member (16) is formed thinner than a main body portion of the member (4). 5. The deformed portion (1) is provided with the deformed portion (1).
The member (16) according to claim 1, wherein the member (16) is formed integrally with another member having a higher flexibility than the main body of the member (16) on which the member (4) is formed. An indoor unit of one of the air conditioners.