JP4699231B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner, and more particularly, to an outlet grill mounting structure provided at an outlet.

A conventional air conditioner will be described with reference to the drawings.
FIG. 4 is a perspective view illustrating the overall configuration of the air conditioner. In the figure, reference numeral 10 denotes an indoor unit, 20 denotes an outdoor unit, and 30 denotes a refrigerant pipe for circulating the refrigerant between both units.
The outdoor unit 20 includes an outdoor heat exchanger 23 that exchanges heat between a refrigerant heated or cooled by indoor air (hereinafter referred to as “indoor air”) and outdoor air (hereinafter referred to as “outside air”). The compressor is configured to include a compressor 22 for sending a refrigerant to the outdoor heat exchanger 23 or an indoor heat exchanger 13 to be described later, a propeller fan 24 for circulating outdoor air to the outdoor heat exchanger 23, and the like.

  The indoor unit 10 has a housing 11 having an external shape, and an indoor heat exchanger 13 that exchanges heat between the refrigerant cooled or heated by the outside air and the indoor air, and the indoor heat exchanger 13 passes the indoor air. A cross flow fan 14 (indoor unit fan) is provided.

  Further, the front surface of the housing 11 is formed with a front panel 12 for taking room air into the housing 11 and an outlet B through which the heat-exchanged air is blown out into the room, The air outlet B is provided with a flap 16 or the like that determines the air blowing direction.

FIG. 5 is a schematic cross-sectional view schematically showing the configuration of the indoor unit 10. The front panel 12 is a component of the housing 11, and is configured by a main front panel 12 a that forms the front surface of the indoor unit 10 and an upper panel 12 b that forms the upper surface, and takes in indoor air into the housing 11. I'm in charge.
The lower end portion of the front panel 12 is disposed so as to be continuous with a member 11 a provided with a drain pan that receives water dripped from the indoor heat exchanger 13 and a stabilizer that rectifies air to the cross flow fan 14. The blower outlet B is provided with a left and right louver 17 that defines a left and right blowing direction in addition to the flap 16 described above.

A base 19 that forms a part of the housing 11 is provided on the back and bottom of the indoor unit 10. A hood panel 21 is attached to the front surface of the base 19, and an outlet grill 18 to which the flap 16 and the left and right louvers 17 are attached is provided between the base 19 and the hood panel 21.
Japanese Patent No. 3396364

  In the indoor unit 10 configured as described above, the indoor air is taken in from the front panel 12 or the upper surface of the housing 11 by the rotational drive of the cross flow fan 14 and passes through the indoor heat exchanger 13. As a result, the indoor air is heated or cooled by the refrigerant flowing through the indoor heat exchanger 13. The conditioned air is sent from the crossflow fan 14 to the blowout port B, blown out by the flap 16 and the louver 17 and blown into the room.

6 and 7 are enlarged views of the vicinity of the outlet grill 18. FIG. 6 is an enlarged perspective view in which the hood panel 21 is omitted, and FIG. 7A is a sectional view of the outlet grill 18. FIG. 7B is a perspective view showing the base 19.
The outlet grill 18 is fixed to the base 19. A concave portion 31 is provided on the base 19 side, and the base end portion 18 a of the outlet grill 18 is fitted into the concave portion 31.

  However, as indicated by arrows in FIGS. 7A and 7B, cold air enters along the gap between the mating surfaces of the concave portion 31 and the base end portion 18a, and dew condensation occurs in the gap between the components constituting the housing. There was a case.

  This invention is made | formed in view of the said situation, and it aims at providing the air conditioning apparatus which can prevent the dew condensation in the clearance gap of a housing | casing.

The invention according to claim 1 is an air conditioner including an indoor unit that exchanges heat with indoor air, wherein the indoor unit is formed facing a housing and a front end portion of the housing , A concave portion whose edge is recessed inwardly from the front end portion; and an outlet grill having a base end portion fitted and fixed to the concave portion , the concave portion of the housing and the outlet grill the contact surface between the base end portion of the gap between the recesses及beauty proximal portion irregularities to meander along the inner and outer direction is provided, as the unevenness, and located inside the edge of the recess A step portion provided along the edge portion and a groove having a shape corresponding to the step portion provided at a base end portion of the outlet grill are provided.

According to the present invention, with respect to the gap formed between the housing and the outlet grille base end, the shape in the inner and outer directions meanders along the irregularities, so that the irregularities serve as channel resistance, and cold air enters. Is suppressed. Moreover, flow path resistance is given by the step part and groove | channel as unevenness | corrugation. By providing the stepped portion and the groove along the edge of the recess, the inflow of cold air from the surroundings can be suppressed. As a result, it is possible to prevent condensation in the gaps of the housing.

According to a second aspect of the present invention, in the air conditioner according to the first aspect of the present invention, a long hole formed in the casing and positioned below the concave portion, and a long hole formed in the base end portion. And a claw portion for restricting the movement of the outlet grill in the vertical direction by engaging with the.

  According to a third aspect of the present invention, in the air conditioner according to the second aspect, the outlet grill is moved in the front-rear direction by being positioned below the elongated hole and engaging the back surface of the claw portion. It is provided with a claw portion to be regulated.

According to the present invention, since the unevenness is provided in the gap between the base end portion of the outlet grille and the casing, the unevenness serves as a flow path resistance, and cold air is prevented from entering the gap. Therefore, it is possible to prevent dew condensation in the gaps of the housing. Further, the movement of the outlet grill in the vertical direction and the front-rear direction with respect to the housing can be restricted.

Next, an embodiment of an air conditioner according to the present invention will be described. In addition, the whole structure is the same as that of the said conventional air conditioning apparatus, About the same structure, the same code | symbol is used and the description is abbreviate | omitted. In the following, only the features characteristic of the present invention will be described.
FIG. 1 is a perspective view showing a part of the vicinity of an outlet grill 50 provided in the air conditioner according to the present embodiment, with a part thereof broken.
The outlet grill 50 is fixed to a base 51 that forms a part of the housing 11. A recess 55 is formed in the base 51, and a base end portion 56 of the outlet grill 50 is fitted in the recess 55. In use, the base end portion 56 is fixed in a state of being sandwiched between the base 51 and a hood panel (not shown).

FIG. 2 shows the recess 55 before the outlet grill 50 is attached. The concave portion 55 is formed to face the front end portion 51a of the base 51, and the edge portion 55a has a shape that is recessed inward from the end portion 51a in a U shape.
The inner wall 55b of the recess 55 is provided with a rib 55c protruding toward the center of the recess 55 in a U-shape along the edge 55a, whereby a stepped portion (unevenness) 58 is formed.

  FIG. 3 is a cross-sectional view showing a fitting state of the concave portion 55 and the base end portion 56. As shown in the figure, the rib 55c has a predetermined width in the vertical direction, and a groove 56a having a shape corresponding to the rib 55c is formed on the base end portion 56 on the surface in contact with the recess 55. By fitting the rib 55c into the groove 56a, the base end portion 56 of the outlet grill 50 is fixed to the recess 55. As a result, the gap 60 formed between the inner surface of the recess 55 and the side surface of the base end portion 56 facing the recess 55 has a shape meandering along the inner and outer directions (vertical direction in FIG. 3) of the recess 55. Yes.

  A lower portion of the base end portion 56 extends below the front end portion 51a of the base 51, a claw portion 56b is formed at the lower end thereof, and engages with a long hole 55a provided below the recess portion 55. Thus, the vertical movement of the outlet grill 50 is restricted. Further, the base 51 is provided with a claw portion 51b that is positioned below the elongated hole 55a and extends forward in the substantially horizontal direction, and the claw portion 51b engages with the back surface of the claw portion 56b, so Movement is regulated. Further, the movement of the outlet grill 50 is also regulated by fitting the rib 55c and the groove 56a.

In the air conditioner of this embodiment formed as described above, the groove 56a of the outlet grill 50 is fitted to the rib 55c during assembly, and the claw portion 56b is engaged with the elongated hole 55a. A slight gap 60 is formed between the base end portion 56 and the recess 55.
During the cooling operation, cool air flows over the base 51. Although the upper end of the gap 60 faces the flow path of the cold air, since the gap 60 is provided with a stepped portion 58, the stepped portion 58 serves as a flow path resistance, and the cold air is prevented from entering the gap 60. Is done.

  As described above, according to the air conditioning apparatus of the present embodiment, it is possible to prevent cold air from entering the gap 60 between the outlet grill 50 and the base 51, thereby preventing condensation inside the housing. it can.

It is the expansion perspective view which fractured | ruptured and showed one part about the base end part of the outlet grill with which the indoor unit of the air conditioning apparatus which concerns on one Embodiment of this invention is provided. It is the perspective view which showed the recessed part of the base where an outlet grille is attached. It is sectional drawing which showed the fitting state of the recessed part and the base end part of an outlet grill. It is the schematic which showed the whole structure of the general air conditioning apparatus. It is the schematic sectional drawing which showed the structure of the indoor unit typically. It is an expansion perspective view of an outlet grill. It is a sectional side view of an outlet grill.

Explanation of symbols

11 Housing 50 Outlet grill 51 Base 56 Base end 58 Stepped portion (Roughness)
60 gap

Claims (3)

In an air conditioner equipped with an indoor unit that exchanges heat with indoor air,
The indoor unit is formed to face a housing, a front end portion of the housing, and an edge portion of which is recessed inward from the front end portion, and a base end portion of the recess portion. And an outlet grille that is fitted and fixed,
Wherein the abutment surface of the recess of the housing and said proximal end portion of the outlet grille, irregularities to meander is provided a gap between the recess及beauty proximal portion along the inner and outer direction,
As the irregularities, there are provided a stepped portion located inside the edge of the recess and provided along the edge, and a groove provided in the base end portion of the outlet grill and having a shape corresponding to the stepped portion. An air conditioner characterized by that. A long hole formed in the housing and positioned below the recess; and a claw portion formed in the base end portion for engaging the long hole to restrict the vertical movement of the outlet grille. The air conditioning apparatus according to claim 1, comprising:   3. The air according to claim 2, further comprising a claw portion that is positioned below the elongated hole and engages a back surface of the claw portion to restrict movement of the outlet grill in the front-rear direction. Harmony device.

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