JPH06272884A - Air-conditioner - Google Patents

Abstract

PURPOSE:To obtain an air-conditioner, prominent in heat exchanging efficiency, increased in the amount of ventilation, reduced in the colliding sound of air, increased in the resistance to a pressure loss in low ventilating operation and inexpensive in cost, while improving service for a user upon heating operation additionally. CONSTITUTION:A substantially V-shaped heat exchanger 2 is arranged below a cross flow fan 8, an indoor unit 1 is provided with a back surface suction port 21 and a guide wall 6 is arranged to guide air while an up-and-down direction guide plate 31 is arranged at the end of the guide wall 6. A generally E-shaped water receiving pan 41, whose central vertical wall is inserted into a space below the apex angle section of the substantially V-shaped heat exchanger 2, is arranged below the substantially V-shaped heat exchanger 2 whereby an indoor unit 1, sucking air from the lower side thereof and sending the air out from the upper part of the same, is obtained.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner that sucks in air in an air-conditioned space, exchanges heat with the air, and blows it out. In particular, the air conditioner is composed of two units, an indoor unit and an outdoor unit. It is about.

[0002]

2. Description of the Related Art As a conventional technique relating to an air conditioner for conditioning the air in an air-conditioned space, there is a technique disclosed in Japanese Patent Laid-Open No. 2-106632.

An indoor unit in a conventional air conditioner will be described.

FIG. 8 is a side sectional view showing an indoor unit in a conventional air conditioner.

In the figure, 51 is an indoor unit of an air conditioner, 52 is a heat exchanger formed in a substantially V shape when viewed from the side in the mounted state, the front surface of the indoor unit 51 facing the heat exchanger 52 and Filter 53 and air inlet 5 on the top
4 are provided. 55 is an air outlet provided in the lower side of the indoor unit 51, 56 is an air outlet 55 that forms an air outlet 55 and guides the blown air, and 57 is a vertical guide that selects the blowing direction of the blown air up and down. It is a plate. Also,
An air blower 58 is installed on the back side of the heat exchanger 52 with a space therebetween and above the air blow guide plate 56.

In the figure, 62 is a substantially V-shaped heat exchanger 5.
It is a spacer inserted in the bent portion of 2. Further, 65 is a piping space, and 69 is a horizontal guide plate.

The operation of the indoor unit of the air conditioner configured as above will be described.

The air in the air-conditioned space is taken into the indoor unit 51 through the suction port 54 by the drive of the blower 58 and comes into contact with the plate fins 60 and the heat transfer tubes 61 when passing through the heat exchanger 52. Heat is exchanged. The heat-exchanged air is guided by the blower guide plate 56 and is sent out from the outlet 55 to the air-conditioned space.

During cooling, when the air in the air-conditioned space taken in through the suction port 54 passes through the heat exchanger 52,
The plate fins 60 and the heat transfer tubes 61 come into contact with each other to absorb heat and become cold air. At this time, water vapor in the air is condensed,
It is condensed in the heat exchanger 52. This condensed water is used in the heat exchanger 52.
Along with the water, the water is once collected in the water receiving tray 59, further flows through a drain groove (not shown), and is discharged to the outside.

The blower 58 is usually a cross-flow blower because the indoor unit 51 has a rectangular shape in the horizontal direction and the internal space and the blown air to the air-conditioned space must be diffused as much as possible.

[0011]

However, in the indoor unit 51 in the air conditioner disclosed in the above publication, the heat exchanger 52 is formed in a substantially V shape, and is incorporated in the housing of the indoor unit 51. Therefore, due to the structure of the heat exchanger 52, it is not possible to add the heat transfer tubes 61 and the plate fins 60 in the heat exchanger 52 in the same space to improve the efficiency. It had to be upsized. Further, since the air suction port 54 is provided on the front surface and the upper surface of the indoor unit 51 and the air outlet 55 is provided on the lower surface, it is provided on the front surface and the upper surface of the indoor unit 51 especially during the heating operation that requires the most air blowing amount. The air taken in through the suction inlet 54 has the air passage shape most different from the 180-degree direction change flow centered on the original eccentric flow of the cross flow fan 58, and the air flow rate is reduced. .

When the rotational speed of the cross flow fan 58 is reduced to reduce the amount of air blown, the air that has undergone heat exchange in the indoor unit 51 is guided to the air blow guide plate 56 and is blown again to the air-conditioned space. At this time, the heat-exchanged air is subjected to dynamic pressure by the cross-flow blower 58, but the static pressure recovery is insufficient due to the short length of the blow guide plate 56, and the air is weak against the pressure loss at the outlet 55. In addition, the heat exchanger 5 formed in a substantially V shape.
Since the spacer 62 to be inserted into the second bent portion and the water receiving tray 59 for storing condensed water due to dew condensation are separately installed in different places, the number of parts is increased and the cost is increased accordingly.

Further, during the heating operation, a large amount of warm air is blown out from the lower surface of the indoor unit 51, so that the blown air directly hits the user in the air-conditioned space, and the user feels uncomfortable. I had something to do.

Therefore, according to the present invention, it is possible to improve the heat exchange efficiency and increase the amount of air blow while maintaining the same size of the housing of the indoor unit in the air conditioner adopting the cross flow fan, and also to generate at the suction port. It is possible to reduce the collision noise of the generated air, increase the pressure loss resistance at the air outlet when the air volume is small, reduce the cost by reducing the number of parts, and reduce the service to users during heating operation. It is an object to provide an air conditioner that can be eliminated.

[0015]

According to a first aspect of the present invention, there is provided an air conditioner having a heat exchanger incorporated in a housing of an indoor unit, a heat transfer tube for circulating a heat exchange medium, and the heat transfer tube. This is a plurality of plate fins formed in a substantially V shape with the fan side open.

In the air conditioner according to a second aspect of the present invention, a heat transfer tube for circulating a heat exchange medium and the heat transfer tube are provided in the housing of the indoor unit, and the air conditioner is formed in a substantially V shape with the side of the cross flow fan side being open. A heat exchanger composed of a plurality of plate fins is built in, and a back surface suction port for taking in air is formed on the back surface of the housing of the indoor unit.

In the air conditioner according to a third aspect of the present invention, a heat transfer tube for circulating a heat exchange medium and the heat transfer tube are provided in the housing of the indoor unit, and the heat transfer tube is formed in a substantially V shape with the side of the cross flow fan opened. A heat exchanger composed of a plurality of plate fins, which is built into the indoor unit, and which guides the air after heat exchange to the outside of the indoor unit. A vertical guide plate is provided for guiding the air blowing direction upward and downward by its vertical movement.

In the air conditioner according to a fourth aspect of the present invention, a heat transfer tube for circulating a heat exchange medium and the heat transfer tube are provided in the housing of the indoor unit, and the air conditioner is formed in a substantially V shape with the cross-flow blower side open. A heat exchanger composed of a plurality of plate fins, which is arranged in the lower part of the heat exchanger formed in the substantially V shape, and has a substantially V-shaped apex angle portion of the heat exchanger. A water tray is arranged underneath.

According to a fifth aspect of the present invention, an air conditioner includes a heat transfer tube for taking in air from a lower suction port and passing a heat exchange medium to a housing of an indoor unit for sending out air after heat exchange from an upper blow port. , A heat exchanger having a plurality of plate fins formed in a substantially V-shape having the heat transfer pipes and having a cross-flow blower side opened, and further, the air blowing direction after the heat exchange is changed up and down. The direction guide plate guides the water to the upper side and the lower side, and a water tray is arranged below the substantially V-shaped apex of the heat exchanger.

[0020]

According to the first aspect of the present invention, the surface area of the heat exchanger is increased by incorporating the heat exchanger in a predetermined position into a substantially V-shape with the side of the cross-flow fan being open, and the heat exchanger can be installed in the indoor unit of the same size. Is possible. Further, since the substantially V-shaped heat exchanger is blown downward by the lower intake air that is required for the cross-flow blower, it should be closest to the 180-degree direction change flow centered on the eccentric flow, which is the original flow of the cross-flow blower. And increase the air flow.

According to the second aspect of the present invention, the suction port of the indoor unit is formed on the back surface, so that the area of the suction port can be increased. As a result, after the air in the air-conditioned space is dispersed, it is taken in through the suction port, the wind speed passing through the suction port becomes slower, and the noise due to the air collision generated at the suction port is reduced.

In the third aspect, since the vertical guide plate for selecting the vertical direction of the blown air is attached to the guide wall connected to the air outlet so as to be connected to the guide wall by a continuous curve, the air flow rate is increased. Even when the amount is small, the static pressure can be sufficiently recovered, and the pressure loss proof strength of the air outlet is increased.

According to the fourth aspect of the present invention, a heat exchanger formed in a substantially V shape and a water tray for containing condensed water condensed in the heat exchanger are arranged below the heat exchanger. ,
The condensed water can be collected efficiently.

According to the present invention, the air is taken in from the lower suction port and the air after heat exchange is blown from the upper air outlet, so that the user in the air-conditioned space is not directly blown with air.

[0025]

EXAMPLES Examples of the air conditioner of the present invention will be described below.

<Embodiment 1> FIG. 1 is a side sectional view showing an indoor unit in an air conditioner of the first embodiment.
FIG. 2 is a side sectional view showing an indoor unit of another embodiment of the air conditioner of the first embodiment. Also,
FIG. 3 is a perspective explanatory view showing a structure of an indoor unit in another air conditioner of the first embodiment.

In the figure, 1 is an indoor unit of an air conditioner, 2 is a heat exchanger formed in a substantially V shape whose upper side is opened and whose lower end is narrowed when viewed from the side in the mounted state, 3 is dust,
A filter 4 for capturing and removing dust and the like is formed on the lower surface of the indoor unit 1, an intake port for taking in air in the air-conditioned space, and a blower port 5 for blowing the heat-exchanged air into the air-conditioned space again. It is formed on the upper part of 1. 6 is a guide wall that guides the heat-exchanged air to the air outlet 5,
It is formed in a continuous curved shape with the outlet 5. Reference numeral 7 is a direction guide portion for directing the direction of the blown air downward, 8 is a cross-flow fan, and 9 is a water pan for storing condensed water condensed in the heat exchanger 2, which has a V-shape that is opened substantially upward. Has become. Reference numeral 10 is a plate fin, 11 is a heat transfer tube through which a heat exchange medium is conducted, and the heat transfer tube 11 is attached to a plurality of plate fins 10. That is, the heat exchanger 2 has a plurality of plate fins 1 formed in a substantially V shape with the side of the cross-flow fan 8 open.
It consists of 0 and. 12 is a spacer that is inserted into the bent portion of the substantially V-shaped heat exchanger 2 and holds the heat exchanger 2, 14 is a floor-standing spacer, and 15 is a piping space, 17 is the left-right direction of the blowing air. It is a left and right direction guide plate that specifies. The heat exchanger 2 is assembled at a predetermined position in the longitudinal direction of the plate fin 10 into a substantially V shape having an acute angle. The heat transfer tube 11 of the heat exchanger 2 of this embodiment has two rows and 11 stages.

The structure of the heat exchanger 2 used in this embodiment will be described in more detail.

This type of heat exchanger 2 is composed of a plate fin 10 made of metal such as aluminum and a heat transfer tube 11 made of metal such as copper, and is generally called a plate fin type. The heat transfer tubes 11 having an outer diameter of about 10 to 15 mm and the plate fins 10 having a thickness of about 0.15 to 0.2 mm and a pitch of about 2 mm are arranged. Further, a heat exchange medium is introduced into the heat transfer tube 2, and the heat exchange medium exchanges heat with the air passing therethrough. Heat transfer tube 1
Since the degree of contact between 1 and the plate fin 10 greatly affects the heat exchange efficiency, they are fixed by applying water pressure in the heat transfer tube 11 or by mechanically expanding the tube to increase the degree of contact between them. The air to be heat-exchanged is inside the heat exchanger 2, that is, the plate fins 1 arranged in the heat transfer tube 11.
When flowing into the pitch of 0 and passing through the inside of the heat exchanger 2, it comes into contact with the plate fins 10 and the heat transfer tubes 11 to receive the heat energy of the heat exchange medium and exchange heat.

Next, the operation of this embodiment will be described.

In the indoor unit of the air conditioner configured as described above, when the cross flow fan 8 is driven, the air in the conditioned space is taken in through the suction port 4 formed in the lower part of the indoor unit 1. The air taken in is filtered by the filter 3
Then, dust, dirt, etc. are removed, and the particles flow in the direction in which the substantially V-shaped heat exchanger 2 is installed and reach the substantially V-shaped heat exchanger 2.

The plate fins 10 arranged on the heat transfer tubes 11 in the substantially V-shaped heat exchanger 2 by the driving of the cross flow fan 8.
When air flows in between the pitches of the heat transfer tubes 11 and the plate fins 1 while the air passes through the substantially V-shaped heat exchanger 2.
Heat is exchanged in contact with 0. At this time, during the cooling operation, water vapor in the heat exchanged air is condensed, and condensed water adheres to the substantially V-shaped heat exchanger 2. The condensed water collects in the water receiving tray 9 installed in the lower part of the substantially V-shaped heat exchanger 2, flows through a drainage groove (not shown), and is discharged to the outside.

The air after the heat exchange is sent to the upper part of the indoor unit 1 by the cross flow fan 8, guided by the guide wall 6, and sent out from the air outlet 5. At this time, the outlet 5
The left and right blowing directions are specified by the left-right direction guide plate 17 provided on the.

Further, since the guide wall 6 is set to be sufficiently long, the static pressure of the air after heat exchange that has been subjected to the dynamic pressure by the cross flow fan 8 can be recovered, and the dynamic pressure is lost due to the pressure loss of the outlet 5. The probability is reduced.

The indoor unit 1 having the structure of this embodiment is
The flow of air in the indoor unit 1 is significantly different from the flow in the indoor unit of the conventional example, and the flow centered on the eccentric vortex that is the original flow of the cross flow blower 8 during the downward heating operation that requires the most amount of air flow. It is possible to form and increase the blowing amount.

Here, when the height and depth of the indoor unit 1 of the conventional air conditioner are set to the structure of the conventional example and the heat exchanger 2 is incorporated therein, the heat transfer tubes 11 can be incorporated in only two rows and ten stages. Absent. That is, as in the present embodiment, the plate fin 1
By configuring the heat transfer tube 11 to have a substantially V-shape with an acute angle at a predetermined position in the longitudinal direction of 0, one extra stage of the heat transfer tube 11 can be incorporated, and as a result, the surface area of the heat exchange section 2 increases.

As described above, according to the present embodiment, the interior is constructed by housing the cross-flow blower 8 for sucking in air and blowing out air, and the heat exchanger 2 arranged under the cross-flow blower 8 in the housing. In the air conditioner including the unit 1, the heat exchanger 2 has a heat transfer pipe 11 for circulating a heat exchange medium, the heat transfer pipe 11 is arranged, and the heat exchanger 2 is formed in a substantially V shape having an opening on the side of the cross flow fan 8. It is provided with a plurality of plate fins 10 as described above, and this can be an embodiment of the invention of claim 1.

Further, the indoor unit in the air conditioner of this embodiment may be constructed as shown in FIGS. 2 and 3. In the drawings, the same reference numerals and symbols as those of the first embodiment show the same or corresponding constituent parts as those of the first embodiment, and therefore, redundant description will be omitted here.

The air conditioner of the embodiment shown in FIG. 2 is a floor-standing indoor unit in which the floor-standing spacer 14 is installed. Can be

The air conditioner of the embodiment shown in FIG. 3 constitutes the indoor unit 1 by disposing a water receiving tray 16 having a structure capable of collecting condensed water in the lower part of the cross flow fan 8 in the longitudinal direction. . Thereby, the indoor unit 1 in the air conditioner of the present embodiment can be the vertical indoor unit 1.

<Embodiment 2> FIG. 4 is a side sectional view showing an indoor unit in an air conditioner of a second embodiment of the present invention. In the drawings, the same reference numerals and symbols as those of the first embodiment show the same or corresponding constituent parts as those of the first embodiment, and therefore, redundant description will be omitted here.

In the figure, reference numeral 21 is a rear suction port for taking in the air in the conditioned space from the rear portion of the indoor unit 1.

Next, the operation of the rear suction port 21 will be described.

By configuring the indoor unit 1 as in the first embodiment, the rear inlet 21 can set the air inlet not only on the front of the indoor unit 1 but also on the rear and lower portions. The back surface suction port 21 increases the surface area of the air suction port provided in the indoor unit 1, and as a result, the flow velocity of the air passing through the suction port 4 decreases and the suction port 4 It is possible to reduce the collision noise of the air generated in the above.

As described above, in the present embodiment, the interior is formed by incorporating the cross flow fan 8 for sucking in air and blowing out air, and the heat exchanger 2 arranged below the cross flow fan 8 in the housing. In an air conditioner including the unit 1, a heat transfer tube 11 for circulating a heat exchange medium, and a plurality of plates provided with the heat transfer tube 11 and formed in a substantially V shape having an opening on the side of the cross flow fan 8 The heat exchanger 2 including the fins 10 and the back surface suction port 21 for taking in air formed on the back surface of the housing of the indoor unit 1 are provided. This can be an embodiment of the invention of claim 2.

<Third Embodiment> FIG. 5 is a side sectional view showing an indoor unit of an air conditioner according to a third embodiment of the present invention. In the drawings, the same reference numerals and symbols as those of the second embodiment indicate the same or corresponding constituent parts as those of the second embodiment, and therefore, redundant description will be omitted here.

In the figure, numeral 31 is attached to the end of the guide wall 6 so as to be a part of the blowing path of the blowing air.
It is a vertical guide plate that guides blown air in the vertical direction.

Next, the operation of the vertical guide plate 31 provided at the end of the guide wall 6 will be described.

The vertical guide plate 31 is used for the guide wall 6
Since it is attached to the end of the air blower so that it forms part of the blowout path, the airflow path is extended, and when the airflow is small, the static pressure recovery amount is guided vertically. It can be adjusted by opening and closing the plate 31. As a result, the pressure loss proof strength at the blowout air outlet increases.

As described above, in this embodiment, the interior is formed by incorporating the cross flow blower 8 for sucking in air and blowing out air and the heat exchanger 2 arranged under the cross flow blower 8 in the housing. In an air conditioner including the unit 1, a heat transfer tube 11 for circulating a heat exchange medium, and a plurality of plates provided with the heat transfer tube 11 and formed in a substantially V shape having an opening on the side of the cross flow fan 8 The heat exchanger 2 including the fins 10 and the indoor unit 1, which is built in, is disposed at an end portion of a guide wall 6 that guides the air after heat exchange to the outside of the indoor unit 1, and the air after heat exchange is provided. And a vertical guide plate 31 that guides the blowing direction of the air flow upward or downward by its vertical movement. This can be an embodiment of the invention of claim 3.

<Fourth Embodiment> FIG. 6 is a side sectional view showing an indoor unit of an air conditioner according to a fourth embodiment of the present invention. In the drawings, the same reference numerals and symbols as those of the third embodiment indicate the same or corresponding constituent portions as those of the third embodiment, and therefore, duplicated description will be omitted here.

In the figure, reference numeral 41 is a cross section having a central vertical bar which is disposed below the substantially V-shaped heat exchanger 2 and is inserted into the space formed in the bent portion of the substantially V-shaped heat exchanger 2. It is a substantially mountain-shaped water pan that has a substantially mountain shape.

Next, the operation of the substantially mountain-shaped water receiving tray 41 will be described.

Since the central vertical bar portion is inserted into the space of the bent portion of the substantially V-shaped heat exchanger 2, the substantially mountain-shaped water receiving tray 41 serves as a spacer and, at the same time, is substantially V-shaped. It also functions as a water tray for containing condensed water adhering to the heat exchanger 2. As a result, the number of constituent parts can be reduced.

As described above, in this embodiment, the interior is formed by incorporating the cross flow fan 8 for sucking in and blowing out the air and the heat exchanger 2 arranged below the cross flow fan 8 in the housing. In an air conditioner including the unit 1, a heat transfer tube 11 for circulating a heat exchange medium, and a plurality of plates provided with the heat transfer tube 11 and formed in a substantially V shape having an opening on the side of the cross flow fan 8 The heat exchanger 2 including the fins 10 and the heat exchanger 2 formed in the substantially V shape.
And a water receiving tray made up of a downwardly convex, substantially mountain-shaped water receiving tray 41 disposed below the substantially V-shaped apex of the heat exchanger 2. An embodiment of the invention of claim 4 can be made.

By the way, the water receiving tray in the case of implementing the present invention is not limited to the substantially mountain-shaped water receiving tray 41, and it is arranged at the lower portion of the substantially V-shaped apex angle portion of the heat exchanger 2. In order to reduce the air resistance, any water tray having a downward convex shape may be used.

<Embodiment 5> FIG. 7 shows an air circulation path in an operating state of an indoor unit in an air conditioner according to a fifth embodiment of the present invention. The air conditioner of the present embodiment includes an indoor unit having a structure similar to that of the first, second, third and fourth embodiments. Also, the structural description of the indoor unit is omitted because the upper unit blows out.

In the figure, reference numeral 100 denotes an indoor unit of an air conditioner, which is constructed so that air is sucked in at the lower part and blown out at the upper part. The arrow indicates the circulation path of the blown air from the indoor unit 100, particularly during the heating operation.

For comparison, FIG. 9 shows an air circulation path during the heating operation in the operating state of the indoor unit in the conventional air conditioner. In the figure, reference numeral 51 indicates the same indoor unit as that of the conventional example, and arrows indicate the path of the air blown from the indoor unit 51.

Further, each rectangular frame in the figure indicates an air-conditioned space.

Next, the air circulation path of the indoor unit 100 of this embodiment will be described.

The heat-exchanged air blown horizontally from the outlet provided in the upper part of the indoor unit 100 flows in the upper layer of the air-conditioned space, hits the wall facing the indoor unit 100, and changes its course downward. . Next, the blown wind whose course is changed downward hits the floor of the air-conditioned space, flows through the bottom layer of the air-conditioned space, and travels in the direction of the indoor unit 100. Then, it returns to the indoor unit 100 again via the suction port at the lower part of the indoor unit 100. This is the air circulation path of the indoor unit of this embodiment.

By constructing the indoor unit 100 as in this embodiment, a large circulating flow can be formed in the air-conditioned space.

On the other hand, the indoor unit 51 of the conventional example
Has an air outlet in the lower part of the indoor unit 51 and an inlet in the upper part and the front face, the air circulation path is such that the air blown out from the lower part of the indoor unit 51 is an air-conditioned space. Flow downwards, hit the wall of the indoor unit 51 and turn upwards, and the upward airflow hits the ceiling of the indoor unit, flows in the upper layer of the air-conditioned space, and returns to the indoor unit 51 again through the intake port. become. In the indoor unit of this conventional example, the air after heat exchange is blown out downward, and directly hits an object or user placed on the floor of the air-conditioned space, causing a pressure loss of the blown air, and the air in the air-conditioned space is blown. Circulation tends to be smaller.

Therefore, since the indoor unit 100 of the air conditioner in the present embodiment blows out the heat-exchanged air in the horizontal direction from above the front surface of the indoor unit 100 and inhales it from the lower surface of the indoor unit 100, The circulation becomes large, and particularly during the heating operation, the air after heat exchange is not directly blown out downward, but is temporarily radiated to warm the air-conditioned space against the wall facing the indoor unit 100. It is possible to heat the people in the space without directly applying wind.

In the air conditioner of this embodiment, the heat transfer tube 11 for conducting the heat exchange medium, the plurality of plate fins 10 fitted with the heat transfer tube 11, and the plurality of plate fins fitted with the heat transfer tube 11 are fitted. A heat exchanger 2 having plate fins 10 formed in a substantially V shape, a cross-flow fan 8 that sucks in and blows out air in an air-conditioned space, and the heat exchanger 2 arranged below the cross-flow fan 8. , The indoor unit 100 having the cross-flow blower 8 built-in, the suction port 4 which is added to the rear portion of the indoor unit 100 and takes in the air of the air-conditioned space, and the indoor unit 100 which is built in to remove air after heat exchange. A guide wall 6 that guides the outside of the indoor unit 100 and an end portion of the guide wall 6 that is movable up and down to select the blowing direction of the air after heat exchange between upper and lower sides and that of the air after heat exchange. Of the transmission route Vertical guide plate 31 constituting the part
And a mountain having a central vertical bar disposed in the lower part of the heat exchanger 2 formed in the substantially V shape and inserted in the space of the substantially V-shaped apex angle portion of the heat exchanger 2. A letter-shaped water tray 41, a suction port 4 set at the bottom of the indoor unit 100,
The indoor unit 100 is provided with a blowout port 5 set above.

As described above, in this embodiment, the cross flow fan 8 for sucking in air and blowing out air, the heat transfer pipe 11 for circulating the heat exchange medium, and the heat transfer pipe 11 are arranged, and the cross flow fan 8 is provided. A heat exchanger 2 including a plurality of plate fins 10 formed in a substantially V shape that opens to the side, an indoor unit 1 in which the cross flow fan 8 and the heat exchanger 2 are built in a housing. An inlet 4 provided at a lower portion of the indoor unit 1 for taking in air, an outlet 5 provided at an upper portion of the indoor unit 1 for delivering air after heat exchange, and an outlet of the indoor unit 1. And a vertical guide plate 31 which is disposed on the fifth side and guides the direction of air blown out after heat exchange upward or downward by its vertical movement. This can be an embodiment of the invention of claim 5.

Particularly, in the case where the water receiving tray is constructed as a substantially mountain-shaped water receiving tray 41 having a vertical bar in the central portion thereof, in the space of the bent portion of the substantially V-shaped heat exchanger 2, the central portion thereof is formed. By inserting the vertical bar, it still functions as a conventional spacer. Therefore, if the water tray is formed in a substantially mountain shape like in this embodiment, two parts of the water tray and the spacer are not required, and the number of constituent parts can be reduced, and the cost can be reduced. Become.

Further, in each of the above-described embodiments, the acute angle of the bent portion of the heat exchanger affects the depth dimension of the indoor unit, and the plate fins 10 of the heat exchanger 2 and the heat transfer tube 1 are also included.
Although it affects the number of 1's, it is usually preferable to set it within 90 degrees.

[0070]

As described above, in the indoor unit of the air conditioner according to the first aspect of the present invention, the heat exchanger is formed in a substantially V shape having the side opening on the side of the cross flow fan so that the heat exchanger has a size smaller than that of the same size. It becomes possible to incorporate many plate fins and heat transfer tubes, and as a result, heat exchange efficiency can be improved. In addition, by disposing a substantially V-shaped heat exchanger in the lower part of the cross flow fan, the shape of the air passage can be taken in from below the housing and blown downward from above the housing. Since it is possible to approach the 180-degree direction change flow, which is a flow, it is possible to increase the air flow rate.

In the indoor unit of the air conditioner according to the second aspect of the present invention, since the substantially V-shaped heat exchanger is arranged at the lower part of the cross flow fan, the air in the air-conditioned space is collected at the back of the indoor unit. It is possible to increase the number of inlets to be put in, the area of the inlets is increased, and the air velocity of the sucked air can be reduced, so that noise generation due to air collision can be reduced.

In the indoor unit of the air conditioner of the third aspect of the present invention, since the vertical guide plate attached to the end of the guide wall is configured as a part of the air passage in the indoor unit, It plays a role of extending the air passage, and when the air flow rate is small, it is possible to recover the static pressure sufficiently by adjusting the vertical guide plate, and the pressure loss proof strength at the outlet increases.

In the indoor unit of the air conditioner according to the fourth aspect of the present invention, a heat transfer tube for circulating a heat exchange medium and the heat transfer tube are arranged and formed in a substantially V shape having an opening on the side of the cross flow fan. A heat exchanger composed of a plurality of plate fins, and a downwardly convex water tray disposed below the substantially V-shaped apex of the heat exchanger, and formed into a substantially V-shape Since the heat exchanger and the water tray for storing the condensed water condensed in the heat exchanger are arranged in the lower part of the heat exchanger, the condensed water can be efficiently collected.

In the indoor unit of the air conditioner according to the fifth aspect of the present invention, the air intake and delivery modes are configured to be lower intake and upper air output of the indoor unit, which is larger than the air conditioner of the conventional example. The air circulation can be formed, and the temperature of the air-conditioned space can be radiatively controlled during operation, without directly applying heat-exchanged air to the occupants of the air-conditioned space, providing a comfortable space for users. it can.

[Brief description of drawings]

FIG. 1 is a side sectional view showing an indoor unit in an air conditioner of a first embodiment of the present invention.

FIG. 2 is a side sectional view showing an indoor unit of an air conditioner according to another embodiment of the first embodiment of the present invention.

FIG. 3 is a perspective view showing an indoor unit of an air conditioner according to another embodiment of the first embodiment of the present invention.

FIG. 4 is a side sectional view showing an indoor unit in an air conditioner of a second embodiment of the present invention.

FIG. 5 is a side sectional view showing an indoor unit in an air conditioner of a third embodiment of the present invention.

FIG. 6 is a cross-sectional view of an indoor unit of an air conditioner according to a fourth embodiment of the present invention, as viewed from the side.

FIG. 7 is a flow diagram showing a circulation route in the air-conditioned space of the air sent out from the indoor unit in the air conditioner of the fifth embodiment of the present invention.

FIG. 8 is a cross-sectional view of an indoor unit in a conventional air conditioner as seen from the side.

FIG. 9 is a flow diagram showing a circulation route in the air-conditioned space of air sent from an indoor unit in a conventional air conditioner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Indoor unit 2 Heat exchanger 4 Suction port 5 Outlet 6 Guide wall 8 Cross-flow blower 9 Water pan 10 Plate fin 11 Heat transfer tube 12 Spacer 16 Water pan 17 Left-right guide plate 21 Rear suction port 31 Vertical guide plate 41 Water Sauce 100 Lower suction, upper discharge type indoor unit

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[Procedure amendment]

[Submission date] September 30, 1993

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] 0029

[Correction method] Change

[Correction content]

This type of heat exchanger 2 is composed of a plate fin 10 made of metal such as aluminum and a heat transfer tube 11 made of metal such as copper, and is generally called a plate fin type. Heat transfer tube 11 with outer diameter 3-10 mm
Thickness 0.08-0.15 mm, pitch 1.0-2.0
The plate fins 10 are arranged in mm. Further, a heat exchange medium is introduced into the heat transfer tube 2, and the heat exchange medium exchanges heat with the air passing therethrough. Heat transfer tube 1
Since the degree of contact between 1 and the plate fin 10 greatly affects the heat exchange efficiency, they are fixed by applying water pressure in the heat transfer tube 11 or by mechanically expanding the tube to increase the degree of contact between them. The air to be heat-exchanged is inside the heat exchanger 2, that is, the plate fins 1 arranged in the heat transfer tube 11.
When flowing into the pitch of 0 and passing through the inside of the heat exchanger 2, it comes into contact with the plate fins 10 and the heat transfer tubes 11 to receive the heat energy of the heat exchange medium and exchange heat.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Katsuhisa Otatsu 8-1-1 Tsukaguchihonmachi, Amagasaki City, Hyogo Prefecture Sanryo Electric Co., Ltd. Central Research Laboratory (72) Inventor Kenji Matsuda 3-chome, 18 Ogashi, Shizuoka City, Shizuoka Prefecture No. 1 Mitsubishi Electric Corporation Shizuoka Factory

Claims (5)

[Claims] 1. An air conditioner comprising an indoor unit in which a housing includes a cross-flow fan that sucks in air and blows out air, and a heat exchanger that is disposed below the cross-flow fan. The heat exchanger includes a heat transfer tube for circulating a heat exchange medium, and a plurality of plate fins formed in a substantially V shape in which the heat transfer tube is disposed and the side of the cross flow fan is opened. And an air conditioner. 2. An air conditioner comprising an indoor unit in which a housing is provided with a cross-flow fan for sucking in air and blowing out air, and a heat exchanger arranged under the cross-flow fan. A heat exchanger including a heat transfer tube through which an exchange medium flows, a plurality of plate fins provided with the heat transfer tube and formed in a substantially V shape having an opening on the side of the cross flow fan, and a housing of the indoor unit An air conditioner, comprising: a back surface suction port for taking in air formed on the back surface. 3. An air conditioner comprising an indoor unit in which a housing is provided with a cross-flow blower for sucking in air and blowing out air, and a heat exchanger arranged under the cross-flow blower. A heat exchanger including a heat transfer tube through which an exchange medium is circulated, a plurality of plate fins provided with the heat transfer tube and formed in a substantially V shape having an opening on the side of the cross flow fan, and a heat exchanger incorporated in the indoor unit A vertical guide plate that is disposed at an end of a guide wall that guides the air after heat exchange to the outside of the indoor unit, and that guides the blowing direction of the air after heat exchange upward or downward by its vertical movement. An air conditioner characterized by being provided. 4. An air conditioner comprising an indoor unit in which a housing is provided with a cross-flow fan that sucks in air and blows out air, and a heat exchanger that is disposed below the cross-flow fan. A heat exchanger including a heat transfer tube through which an exchange medium is circulated, and a plurality of plate fins that are arranged in the heat transfer tube and that are formed in a substantially V shape having an opening on the side of the cross flow fan; An air conditioner comprising: a downwardly convex water receiving plate disposed below the substantially V-shaped apex. 5. A cross-flow fan for sucking in air and blowing out air, a heat transfer tube for circulating a heat exchange medium, and the heat transfer tube are provided, and are formed in a substantially V-shape opening to the side of the cross-flow fan. A heat exchanger including a plurality of plate fins, an indoor unit having the cross flow fan and the heat exchanger housed in a housing, and an air intake port provided at a lower portion of the indoor unit for taking in air. A blower outlet provided above the indoor unit for delivering air after heat exchange; and a blower outlet arranged on the blower outlet side of the indoor unit for moving the air blown after heat exchange upward or downward by its vertical movement. And an up-down direction guide plate that guides the air conditioner.