JPWO2016063596A1 - Air conditioner - Google Patents

Abstract

The air conditioner includes a main body having a suction port and an air outlet, and the main body includes a front surface, a back surface, an upper surface, a lower surface, and a pair of side surfaces, and the suction port is formed on any of the front surface, the upper surface, and the side surfaces. The blower outlet is formed at least on the lower surface, the upstream of the blower outlet is a blowout air passage, the front side of the blowout air passage is formed by a diffuser, and the diffuser is in a side view, The downstream side of the diffuser has a portion away from an imaginary straight line that is an extension direction of the upstream portion of the diffuser.

Description

  The present invention relates to an air conditioner.

  Patent Document 1 discloses an air conditioner that includes a blower fan in a main body, and has a blowout air passage defined by a wall surface downstream of the blower fan. An outlet is provided in the downstream portion of the blowout air passage. The blower outlet is provided in the lower surface and front surface of the main body of an air conditioner.

Japanese Patent No. 3872012 (see FIG. 3)

  The air conditioner arranged in the target space as an indoor unit is conditioned air by providing a blower outlet across the lower surface of the main body of the air conditioner or the lower surface and the front surface of the main body. Can be blown over a wide area of the target space.

  However, the blowout load of the air conditioner may change due to, for example, the passage of the usage period. For example, when the air conditioner is shipped from the factory (the initial period of use), the blowout load is relatively low, and the conditioned air is a part of the lower surface of the main body or a part of the lower surface and the front surface of the main body. From a blowout port that occupies a large area, it is stably and widely blown out.

  On the other hand, when a certain period of use elapses, accumulation of dust and the like increases the ventilation resistance, and the blowing load becomes a relatively high load. When the blowout load becomes relatively high, the wind speed distribution of the air blown out from the blower fan becomes unstable, causing a back flow from the blowout port to the blower fan, which may eventually lead to condensation. obtain. In particular, when the air outlet is spread over the lower surface and the front surface of the main body, the wind speed distribution of the air blown from the blower fan becomes more unstable.

  The present invention has been made in view of the above, and it is possible to reduce the occurrence of condensation while having a blowout port that occupies a part of the lower surface of the main body or a part of the lower surface and the front surface of the main body. An object is to provide an air conditioner that can.

  In order to achieve the above-described object, an air conditioner according to the present invention includes a main body having a suction port and an outlet, a blower provided in the main body, and a heat exchange unit provided in the main body. The main body includes a front surface, a back surface, an upper surface, a lower surface, and a pair of side surfaces, and the suction port is formed on any of the front surface, the upper surface, and the side surfaces, and the air outlet includes at least the air outlet Formed on the lower surface, upstream of the outlet is a blowout air passage, and the front side of the blowout air passage is defined by a diffuser, and the diffuser is downstream of the diffuser as viewed from the side. The side has a portion away from the upstream imaginary straight line which is the extension direction of the upstream portion of the diffuser.

  According to the air conditioner of the present invention, it is possible to reduce the occurrence of condensation while having a blowout port that occupies a part of the lower surface of the main body or a part of the lower surface and the front surface of the main body.

It is a figure which shows the installation state when the air conditioner which shows Embodiment 1 of this invention is seen from the inside of a room. It is a figure which shows the internal structure of the air conditioner of this Embodiment 1 from the side. It is a figure which expands and shows the vicinity part of a diffuser and the downstream part of a guide wall regarding this Embodiment 1. FIG. The relationship between the angle α formed by the upstream virtual line S1 and the downstream virtual line S2 and ΔSPL (the difference in noise value when the angle α formed by the virtual lines S1 and S2 is linearly connected to 0 °) is shown. It is a graph. It is a figure of the same aspect as FIG. 2 regarding Embodiment 2 of this invention. It is a figure of the same aspect as FIG. 3 regarding Embodiment 3 of this invention. It is a figure of the same aspect as FIG. 3 regarding Embodiment 3 of this invention. It is a figure of the same aspect as FIG. 2 regarding Embodiment 4 of this invention.

  Hereinafter, an embodiment of an air conditioner (indoor unit) according to the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts. Moreover, about an outdoor unit, the existing thing can be used.

Embodiment 1 FIG.
FIG. 1 is an installation schematic diagram when viewed from a room of an air conditioner according to Embodiment 1 of the present invention. FIG. 2 is a view showing the internal structure of the air conditioner of Embodiment 1 from the side. In addition, FIG. 2 shows the state at the time of horizontal blowing operation (at the time of side blowing) of the air conditioner.

  As shown in FIG. 1, an air conditioner (indoor unit) 100 includes a main body 1 as a case. The air conditioner 100 is an example of a wall-hanging type, and is supported by a wall 11a of a room 11 that is an air-conditioning target space. In addition, the air conditioner of this invention is not limited to being installed in a room of a general household, For example, you may install in one room of a building of a facility, a warehouse, etc.

  The air conditioner of the present invention is a so-called ceiling-embedded air conditioner, and the back surface of the main body is in contact with the wall surface (the wall excluding the ceiling and floor) that defines the air-conditioning target space. Or it is an air conditioner which is approaching and the front surface of the main body faces the air conditioning target space side. In other words, the air conditioner of the present invention does not have the suction port and the air outlet on the same surface as in the ceiling-embedded type, and deviates from the central portion of the air conditioning target space. What is necessary is just to be arranged near the wall surface which demarcates.

  The main body 1 is a substantially rectangular parallelepiped casing. Specifically, the main body 1 includes a back surface 1c facing the wall 11a of the room 11, a front surface 1a opposite to the back surface 1c, an upper surface 1b, a lower surface 1d, and a pair of left and right side surfaces 1e. .

  In the air conditioner of the present invention, at least one suction port is formed on any one of the front surface, the upper surface, and the side surface of the main body, and the air outlet extends over at least a part of the front surface of the main body and at least a part of the lower surface. Is formed. A specific example of this embodiment will be further described.

  A front grill 6 is attached to the front surface 1 a of the main body 1. The front grill 6 is formed in a flat flat surface in the vertical direction (height direction) and the horizontal direction (lateral width direction). In addition, a first suction port 2 a for sucking room air into the air conditioner 100 is opened at the center portion of the front grille 6 in the main body height direction. The suction port 2a extends through the front grill 6 in the lateral width direction, and opens to a length corresponding to at least the length in the lateral width direction of the heat exchanger 7 described later. The opening of the suction port 2a may be longer than the length of the heat exchanger 7 in the width direction. An air guide wall 6a is provided on the downstream side of the suction port 2a. The front side of the flow path on the downstream side of the suction port 2a is formed by the back surface of the front grill 6, and the back side of the flow path on the downstream side of the suction port 2a is formed by the air guide wall 6a. The air guide wall 6a extends horizontally from the front grill 6 above the suction port 2a to the back side, bends in the middle, and extends downward. That is, the air guide wall 6 a has an L-shaped cross section having a horizontal surface 6 a 1 extending perpendicularly to the flat surface of the front grill 6 and a downward surface 6 a 2 extending parallel to the flat surface of the front grill 6. Is formed. Further, the suction port 2a is disposed in a range H below the upper end of the cross-flow fan 8 described later and above the upper end of the stabilizer 9 described later in the main body height direction.

  On the upper surface 1 b of the main body 1, a grill-type second suction port 2 b for sucking room air into the air conditioner 100 is formed.

  A blower outlet 3 for supplying adjusted air into the room is formed in the lower surface 1d and the front surface 1a of the main body 1. The blower outlet 3 is formed over the lower surface 1d and the front surface 1a of the main body 1. In other words, the air outlet 3 continuously extends so as to occupy a front area of the lower surface 1d of the main body 1 and a lower area of the front surface 1a of the main body 1. The blower outlet 3 opens only on the lower surface 1d and the front surface 1a of the main body 1, and does not open on the upper surface 1b, the back surface 1c, and the left and right side surfaces 1e.

  Inside the main body 1, a cross-flow fan (air blowing part) 8 having an impeller 8 a and a guide wall 10 are arranged. The cross-flow fan 8 is disposed between the suction side flow path E1 and the blowout side flow path E2, sucks air from the suction ports 2a and 2b, and blows air out to the blowout port 3. The guide wall 10 extends from the rear of the cross-flow fan 8 to the lower side, and guides the air discharged from the cross-flow fan 8 to the air outlet 3.

  Furthermore, inside the main body 1, a filter (ventilation resistor) 5 that removes dust and the like in the air sucked from the suction ports 2a and 2b, and the conditioned air is generated by transmitting the hot or cold heat of the refrigerant to the air. A heat exchanger (heat exchange unit, ventilation resistor) 7 and a stabilizer 9 that partitions the suction side flow path E1 and the blowout side flow path E2 are arranged.

  The guide wall 10 constitutes an outlet side flow path E2 that is an outlet air passage 3b in cooperation with the diffuser 3a formed on the lower surface of the stabilizer 9. That is, the front surface 1a side of the main body 1 in the blowing air path 3b is defined by the diffuser 3a, and the back surface 1c side of the main body 1 in the blowing air path 3b is defined by the guide wall 10, and the blowing air path is It is comprised by the diffuser 3a and the said guide wall 10 which oppose. The guide wall 10 forms a spiral surface from the cross-flow fan 8 to the outlet 3.

  The filter 5 is formed, for example, in a mesh shape, and removes dust in the air sucked from the suction ports 2a and 2b. The filter 5 is provided on the downstream side of the suction ports 2 a and 2 b and the upstream side of the heat exchanger 7 in the air path from the suction ports 2 a and 2 b to the blower outlet 3. The filter 5 extends from above the heat exchanger 7 to the front.

  The heat exchanger 7 (indoor heat exchanger) functions as an evaporator during cooling operation to cool air, and functions as a condenser (heat radiator) during heating operation to heat the air. is there. The heat exchanger 7 is provided on the downstream side of the filter 5 and on the upstream side of the cross-flow fan 8 in the air path from the suction ports 2 a and 2 b to the blower outlet 3 (center portion inside the main body 1). . In FIG. 2, the shape of the heat exchanger 7 is such that it surrounds the front portion and the upper portion of the cross-flow fan 8, but is merely an example and is not particularly limited.

  It is assumed that the heat exchanger 7 is connected to an outdoor unit that may be a well-known mode including a compressor, an outdoor heat exchanger, a throttling device, and the like, and constitutes a refrigeration cycle. Further, as the heat exchanger 7, for example, a cross fin type fin-and-tube heat exchanger composed of a heat transfer tube and a large number of fins is used.

  The blowout air passage 3b is provided with an up / down air direction vane 4a and a left / right air direction vane 4b. The left and right wind direction vanes 4 b are rotatably provided between the up and down wind direction vanes 4 a and the cross-flow fan 8. The up / down wind direction vane 4a adjusts the up / down direction of the direction of the air blown from the cross-flow fan 8, and the left / right wind direction vane 4b adjusts the left / right direction of the direction of the air blown out of the cross-flow fan 8. To be adjusted. The vertical wind direction vane 4a and the horizontal wind direction vane 4b are driven to rotate independently of each other.

  The vertical wind direction vane 4a has a convex shape in which both the upper surface and the lower surface of the vertical wind direction vane 4a protrude downward when viewed in the horizontal blowing operation.

  The stabilizer 9 divides the suction side flow path E1 and the blowout side flow path E2 as described above, and is provided below the heat exchanger 7 as shown in FIG. The suction side flow path E <b> 1 is located above the stabilizer 9, and the blowout side flow path E <b> 2 is located below the stabilizer 9.

  The stabilizer 9 includes a tongue 9a that separates the suction side flow path E1 and the blowout side flow path E2, a drain pan 9b that temporarily stores water droplets dropped from the heat exchanger 7, and a diffuser 3a. The diffuser 3 a is formed on the lower surface of the stabilizer 9 as described above, and functions as the upper wall surface (front side wall surface) of the air outlet 3 b of the outlet 3.

  FIG. 3 is an enlarged view showing the vicinity of the diffuser and the downstream portion of the guide wall in the first embodiment. 2 and 3, the upstream portion 3a1 of the diffuser 3a extends in the same direction as the direction in which the downstream portion 10a of the guide wall 10 extends, and the upstream portion 3a1 of the diffuser 3a is viewed from the side. The guide wall 10 is arranged in parallel with the downstream portion 10a.

  Moreover, the upstream part 3a1 of the diffuser 3a has a linear part in side view. In the side view of FIG. 2, when the extension direction of the straight portion of the upstream portion 3a1 of the diffuser 3a is an upstream virtual straight line S1, the front portion of the upstream virtual straight line S1 is a virtual straight line F extending the front surface 1a of the main body 1. It extends to intersect. Further, the downstream portion 3a2 of the diffuser 3a extends toward the lower side from the upstream virtual line S1 toward the downstream side of the downstream portion 3a2. That is, in the side view, the diffuser 3a has a portion farther from the upstream virtual straight line S1 that is the extension direction of the upstream portion 3a1 of the diffuser 3a toward the downstream side of the diffuser 3a. In particular, in the illustrated example of FIG. 2, the diffuser 3 a is configured not to have a portion that is positioned above the upstream virtual line S <b> 1 of the upstream portion 3 a 1 of the diffuser 3 a.

  Further, the downstream portion 3a2 of the diffuser 3a has a straight portion when viewed from the side. Assuming that the extension direction of the straight line portion of the downstream portion 3a2 of the diffuser 3a is a downstream virtual line S2, the downstream virtual line S2 is below the upstream virtual line S1. The diffuser 3a is bent or curved at a portion 3a3 located between the upstream portion 3a1 and the downstream portion 3a2 of the diffuser 3a.

  Further, the length A of the straight portion of the downstream portion 3a2 of the diffuser 3a shown in FIG. 3 is more than half the length B of the chord line connecting the upstream end 4a1 and the downstream end 4a2 of the up-and-down airflow vane 4a. Yes.

  Moreover, the angle α formed by the upstream virtual line S1 and the downstream virtual line S2 is preferably 5 ° to 40 °. FIG. 4 is a graph showing the relationship between the angle α formed by the upstream virtual line S1 and the downstream virtual line S2 and ΔSPL. ΔSPL is a difference in noise value with respect to a case where the angle α formed by the upstream imaginary line S1 and the downstream imaginary straight line S2 is connected in a straight line having 0 °. As can be seen from the graph of FIG. 4, it is clear that the effect is low noise and effective when the angle α formed by the upstream virtual line S1 and the downstream virtual line S2 is in the range of 5 ° to 40 °. On the other hand, if the angle α formed by the upstream imaginary straight line S1 and the downstream imaginary straight line S2 is less than 5 °, the sound insulation effect at the downstream portion 3a2 of the diffuser 3a cannot be expected, and if the angle α exceeds 40 °, Although the sound insulation effect is enhanced, the demerit of the increase in noise due to the narrowing of the outlet and the increase in ventilation resistance is more conspicuous, and the noise worsens as an overall evaluation of the sound. Therefore, the angle α formed by the upstream imaginary straight line S1 and the downstream imaginary straight line S2 is preferably 5 ° to 40 °, and the noise reflected from the fan to the guide wall by the wall surface on the downstream side of the diffuser is directed downward in the unit. The noise can be reflected to suppress noise emission to the front side of the air conditioner, thereby reducing the noise.

  In the air conditioner of the first embodiment configured as described above, the diffuser has a portion farther from the upstream imaginary straight line, which is the extension direction of the upstream portion of the diffuser, on the downstream side. The flow along the wall surface of the blown air (downstream portion of the diffuser) can be increased in the downstream portion. For this reason, backflow from the outlet to the blower fan can be reduced even at a relatively high load of the blowing load, for example, dust accumulates on the filter provided on the suction port side and the ventilation resistance increases. it can. In other words, it is possible to blow out the air conditioned by the air outlet across the front and lower surfaces of the main body over a wide range of the target space, but also at the air outlet at a relatively high load where the air blowing load is higher than that at the time of factory shipment. The backflow from the fan to the blower fan can be reduced, and the occurrence of condensation can be reduced.

  In addition, since the blowout air path is composed of the opposing diffuser and guide wall, the flow is stabilized by securing the flow path as a duct, the change in ventilation resistance due to the movement of the upper and lower flaps, and the dust on the filter It can blow air stably against environmental changes such as changes in ventilation resistance due to clogging.

  Furthermore, the noise reflected from the fan to the guide wall is actively reflected to the lower side of the main body of the air conditioner by the downstream part of the diffuser, so that noise emission to the front side of the air conditioner is suppressed and silenced. There are also advantages.

  Further, the length A of the straight portion of the downstream portion 3a2 of the diffuser 3a is set to be more than half of the length B of the chord line extending between the upstream end 4a1 and the downstream end 4a2 of the up-and-down wind direction vane 4a. The flow between the upper and lower wind direction vanes 4a is stabilized, and the wind direction controllability can be improved.

  Furthermore, by forming the front grill 6 flat in the vertical direction, the surface of the front grill 6 is less likely to become dusty and can be kept clean. In addition, by forming the front grill 6 flat in the left-right direction, the air path depth is the same in the width direction of the main body 1, and the cross-flow fan 8 and the heat exchanger 7 can be mounted in the main body 1 with high density. Performance and heat exchanger performance can be improved.

  Further, by making the air guide wall 6a L-shaped in cross section, only the downward surface 6a2 can be seen in the air inlet 2a in a front view, and a flat surface is formed at the innermost position in the depth direction, so that the design is good. Further, since a suction flow buffering area is formed at the corners of the horizontal surface 6a1 and the downward surface 6a2, the suction air does not follow the wall surface and is difficult to dust. Further, when noise such as the cross-flow fan 8 generated in the main body 1 is discharged to the outside from the suction port 2a, the upper surface (horizontal plane 6a1) of the air guide wall 6a is formed horizontally, so that it reflects toward the outside. Sound is reduced and low noise can be secured.

  Furthermore, by providing the opening of the suction port 2a with a length corresponding to the length of the heat exchanger 7 in the width direction, the heat sucked from the suction port 2a can be effectively exchanged with the heat exchanger 7. Moreover, when the opening of the suction port 2a is made longer than the length in the width direction of the heat exchanger 7, the suction pressure loss can be reduced by increasing the opening area of the suction port 2a.

  Moreover, since air is sucked in from the position close | similar to the crossflow fan 8 by arrange | positioning the suction inlet 2a in the range H in the main body height direction mentioned above, ventilation resistance reduces and ventilation efficiency improves. In addition, the air sucked from the suction port 2a is supplied to the fan circulation flow to stabilize the flow through, and even if dust accumulates on the filter or changes in load occur during heating and cooling, the variation in air flow is small and quality. I can keep. Further, it is unnecessary and compact to drive the front grill 6 and open the suction port 2a, and the change in form during operation is small, and the resident's uncomfortable feeling can be suppressed. Further, the front grill 6 has a shape that is vertically divided at the center in the height direction of the main body, has the same height dimension on the upper side and the lower side of the front grill 6, and has the same strength on the upper side and the lower side. Therefore, it is difficult to warp and quality can be maintained.

Embodiment 2. FIG.
Next, Embodiment 2 of the present invention will be described with reference to FIG. FIG. 5 is a diagram of the same mode as FIG. 2 regarding the second embodiment of the present invention. The second embodiment is the same as the first embodiment except for the parts described below.

  In the illustrated example of FIG. 2 related to the first embodiment described above, the diffuser 3a is configured not to have a portion located above the upstream virtual line S1 of the upstream portion 3a1 of the diffuser 3a. However, the present invention is not limited to this. That is, in the present invention, in the diffuser 3a, the portion between the upstream portion 3a1 of the diffuser 3a that determines the upstream virtual line S1 and the downstream portion 3a2 of the diffuser 3a that determines the downstream virtual line S2 has various modes. Can be formed. FIG. 5 is an example.

  As shown in FIG. 5, in the diffuser 3a, there is an intermediate portion between the upstream portion 3a1 of the diffuser 3a that determines the upstream virtual line S1 and the downstream portion 3a2 of the diffuser 3a that determines the downstream virtual line S2. There is 3a4. The intermediate portion 3a4 is located above the upstream imaginary straight line S1.

  Such a second embodiment can provide the same effects as those of the first embodiment, and in particular, has a blowout opening that occupies a part of the lower surface and a part of the front surface of the main body. , The occurrence of condensation can be reduced.

Embodiment 3 FIG.
Next, Embodiment 3 of the present invention will be described with reference to FIGS. 6 and FIG. 7 are diagrams of the same mode as FIG. 3 regarding the third embodiment of the present invention. The third embodiment is the same as the first or second embodiment except for the parts described below. 6 and 7 are examples in the case where the parts other than those described below are configured in the same manner as in the first embodiment.

  In the illustrated example of FIG. 2 relating to the first embodiment described above, the upstream portion of the diffuser 3a and the downstream portion of the guide wall 10 are substantially parallel to each other, but the present invention is not limited to this. . In other words, in the present invention, the distance between the upstream portion of the diffuser and the downstream portion of the guide wall may gradually increase toward the downstream side. 6 and 7 are examples thereof.

  First, in the mode shown in FIG. 6, the direction in which the upstream portion 303a1 of the diffuser extends is directed toward the downstream side from the direction in which the upstream portion 3a1 of the diffuser in the mode of FIG. It is set so as to be separated from the downstream portion 10 a of the wall 10. That is, the blowout air passage in FIG. 6 is enlarged on the upstream portion 303a1 side of the diffuser than the blowout air passage in FIG.

  Further, in the aspect shown in FIG. 7, the extending direction of the downstream portion 310 a of the guide wall is directed toward the downstream side from the extending direction of the downstream portion 10 a of the guide wall in the aspect of FIG. 2 of the first embodiment described above. , The distance from the upstream portion 3a1 of the diffuser 3a is set. That is, the blowout air passage in FIG. 7 is enlarged more than the blowout air passage in FIG. 2 on the downstream portion 310a side of the guide wall.

  Such a third embodiment can provide the same effects as those of the first embodiment, and in particular, has a blowout opening that occupies a part of the lower surface and a part of the front surface of the main body. , The occurrence of condensation can be reduced. In addition, since the distance between the upstream portion of the diffuser and the downstream portion of the guide wall increases toward the downstream side, the fan outlet flow is enlarged near the fan outlet region 8b and is uniform in the height direction of the outlet. It becomes. As a result, the flow is stabilized, and more stable ventilation can be performed against the increase in ventilation resistance due to dust clogging of the filter, thereby improving the quality.

Embodiment 4 FIG.
Next, Embodiment 4 of the present invention will be described with reference to FIG. FIG. 8 is a diagram of the same mode as FIG. 2 regarding the fourth embodiment of the present invention. In addition, this Embodiment 4 shall be the same as that of Embodiment 1 except the part demonstrated below.

  In the illustrated example of FIG. 2 relating to the first embodiment described above, the air conditioner 100 in which the air outlet 3 is formed across at least a part of the front surface 1a and the lower surface 1d of the main body 1 is shown. The invention is not limited to this. In other words, the present invention can be applied to an air conditioner in which the air outlet 3 is formed only on the lower surface 1d of the main body 1, and the same operational effects can be obtained. FIG. 8 shows an example.

  As shown in FIG. 8, the lower surface 1d of the main body 1 is formed with an air outlet 3 for supplying adjusted air into the room. The blower outlet 3 opens only on the lower surface 1d of the main body 1, and does not open on the front surface 1a, the upper surface 1b, the back surface 1c, and the left and right side surfaces 1e. A front grill 6 having the same height as the main body height direction is attached to the front surface 1 a of the main body 1. In addition, although the example which comprised the up-and-down wind direction vane 4a with two members was shown in FIG. 8, you may comprise with one member similarly to Embodiment 1. FIG.

  Also according to the fourth embodiment, the same effect as that of the first embodiment can be obtained.

  Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.

  1 Main body, 1a front surface, 1b upper surface, 1c back surface, 1d lower surface, 1c back surface, 2a, 2b inlet, 3a diffuser, 3a1, 303a1 upstream portion of diffuser, 3a2 downstream portion of diffuser, 7 heat exchanger ( (Heat exchange part), 8 cross-flow fan (blower part), 10a, 310a Downstream part of guide wall, 100 air conditioner, S1 upstream imaginary straight line, S2 downstream imaginary straight line.

In order to achieve the above-described object, an air conditioner according to the present invention includes a main body having a suction port and an outlet, a blower provided in the main body, and a heat exchange unit provided in the main body. The main body includes a front surface, a back surface, an upper surface, a lower surface, and a pair of side surfaces, and the suction port is formed on any of the front surface, the upper surface, and the side surfaces, and the air outlet includes at least the air outlet Formed on the lower surface, upstream of the outlet is a blowout air passage, and the front side of the blowout air passage is defined by a diffuser, and the diffuser is downstream of the diffuser as viewed from the side. more sides, have a portion away from the upstream portion virtual line is an extension direction of the upstream portion of the diffuser, is arranged below the heat exchanger unit, the diffuser in the lower surface is formed Sutabira The suction port formed on the front surface of the main body is disposed in a range below the upper end of the air blowing unit and above the upper end of the stabilizer in the height direction of the main body. And a cross section having a horizontal surface extending horizontally toward the back side of the main body and a downward surface extending downward. It is L-shaped .

DESCRIPTION OF SYMBOLS 1 Main body, 1a front surface, 1b upper surface, 1c back surface, 1d lower surface, 1e side surface, 2a, 2b inlet port, 3a diffuser, 3a1, 303a1 upstream portion of diffuser, 3a2 downstream portion of diffuser, 7 heat exchanger ( (Heat exchange part), 8 cross-flow fan (blower part), 10a, 310a Downstream part of guide wall, 100 air conditioner, S1 upstream imaginary straight line, S2 downstream imaginary straight line.

Claims (9)

A main body having an inlet and an outlet;
A blower provided in the main body;
A heat exchange part provided in the main body,
The main body includes a front surface, a back surface, an upper surface, a lower surface and a pair of side surfaces,
The suction port is formed in any of the front surface, the upper surface and the side surface,
The air outlet is formed at least on the lower surface,
Upstream of the outlet is an outlet air passage,
The front side of the blowing air passage is defined by a diffuser,
When viewed from the side, the diffuser has a portion away from an imaginary straight line that is an extension direction of the upstream portion of the diffuser toward the downstream side of the diffuser.
Air conditioner. The air conditioner according to claim 1, wherein the air outlet is formed across the front surface and the lower surface. Up and down wind direction vanes that adjust the up and down direction of the blowing direction of the air blown out from the blowing section are arranged in the blowing air path,
When viewed from the side, the length of the straight portion of the downstream portion of the diffuser is a length of more than half of the length of the chord line connecting the upstream end and the downstream end of the up-and-down wind direction vane.
The air conditioner according to claim 1 or 2. The back side of the blowing air passage is defined by a guide wall, and the blowing air passage is constituted by the opposing diffuser and the guide wall.
The air conditioner according to any one of claims 1 to 3. The distance between the upstream portion of the diffuser and the downstream portion of the guide wall increases toward the downstream side,
The air conditioner according to claim 4. When viewed from the side, when the extension direction of the straight portion of the upstream portion of the diffuser is the upstream virtual straight line S1, and the extension direction of the straight portion of the downstream portion of the diffuser is the downstream virtual straight line S2, the upstream virtual straight line The angle α formed between S1 and the downstream virtual line S2 is 5 ° to 40 °.
The air conditioner according to any one of claims 1 to 5. The stabilizer is disposed below the heat exchanging portion, and the diffuser is formed on the lower surface.
The suction port formed on the front surface of the main body is disposed in a range below the upper end of the air blowing unit and above the upper end of the stabilizer in the height direction of the main body.
The air conditioner according to any one of claims 1 to 6. The suction port formed in the front surface of the main body is open to at least a length corresponding to the length in the width direction of the heat exchange unit,
The air conditioner according to claim 7. A wind guide wall is provided on the downstream side of the suction port,
The air guide wall has an L-shaped cross section having a horizontal surface extending horizontally toward the back side of the main body and a downward surface extending downward.
The air conditioner according to claim 7 or 8.

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