JPH03156221A - Air conditioner - Google Patents

Abstract

PURPOSE:To realize both a higher heat-exchanging performance and a compacter construction, by providing a heat exchanger with a bent form, and orienting bent projected parts or bent recessed parts in the direction of an air passage. CONSTITUTION:A heat exchanger 5 comprises a multilayer stack of fin units 10, 10 at predetermined intervals. Each of the fin units 10, 10 comprises a stack of net form fins 11, 11..., electric heating tube fitting holes 17, 17... formed between the fins 11, 11..., and a plurality of flexible electric heating tubes 12, 12 fitted in the holes 17, 17.... The heat exchanger 5 is installed in the state of being bent up and down across an air passage 4 by utilizing a plurality of support rods 15, 15 arranged at a predetermined vertical spacing so that bent projected parts 5a, 5a and bent recessed parts 5b, 5b are oriented in the direction of the air passage 4. An airflow is introduced from an air suction port 2, and heat exchange between Joule heat generated according to a current flowing through a heater wire in the heating tubes 12, 12 and air passed through the tubes 12, 12 is carried out through the fins 11, 11 with extremely high efficiency.

Description

[Detailed description of the invention] (Industrial application field) The present invention relates to the structure of an air conditioner.

(Prior Art) A heat exchanger 2K for an air conditioner, which has been well known in the past, includes a cross-fin coil in which a plurality of cross fins are commonly disposed orthogonal to a plurality of heat transfer tubes. and,
In order to improve the air side heat transfer performance of the cross fin,
For example, by cutting out slits or louvers in the fin,
A device that makes use of the leading edge effect has already been proposed (for example, Publication of Utility Model Publication No. 58-49E03). It needs to be narrowed. However, in terms of manufacturing technology, there is generally a limit to narrowing the incision.

Therefore, in this method, the heat transfer performance is almost close to the upper limit.

Therefore, in an effort to obtain even higher heat transfer performance, we have tried using mesh fins (for example, wire mesh as fins), which can have the same effect as narrowing the width of the slit or louver beyond the above limit. Of... Jitsukai Showa 60-2
186) is considered to be used.

However, since the tube diameter of the heat transfer tubes conventionally used in cross-fin coils is relatively large, for example, about 8 to 1 (1+ m), the tube pitch naturally has to be large, and the high-performance mesh fins There is a problem that the advantages are not fully utilized.In other words, if the tube pitch is large because the heat transfer coefficient of the mesh fins is extremely high, the temperature change of the mesh fins will be large near the center of the two heat transfer tubes. This results in a decrease in fin efficiency.

On the other hand, if the tube pitch is reduced while the tube diameter of the heat exchanger tubes remains unchanged, there is a risk that ventilation resistance will increase and costs will increase.

Under these circumstances, for the purpose of providing a finned air heat exchanger that can make maximum use of the heat transfer performance peculiar to the above-mentioned mesh fins without reducing the original fin efficiency, for example, As shown in Japanese Patent No. 61-19218, mesh fins formed into panels through which air can flow are arranged on the outer periphery of a large number of heat transfer tubes having an outer diameter of about 1 to 4 IIlfi and arranged at a pitch of about 10 to 20 IIli, for example. Some are constructed by being fixed to a surface along the longitudinal direction.

According to the heat exchanger having such a configuration, the following effects can be obtained.

(1) By making the outer diameter of the heat transfer tube a thin tube of about 1 to 4 cm and reducing the tube pitch to about 0 to 20+*a, it is certain that the fin efficiency of the mesh fins, which have a high heat transfer coefficient, will decrease. is prevented.

(2) The heat transfer coefficient of the heat exchanger tube itself is increased, and pressure loss due to shape resistance is also suppressed.

(Problem to be solved by the invention) Recently, there has been a general trend toward downsizing of air conditioners as mentioned above, especially indoor units, and there has been a strong demand for wall-mounted units. . In this case, if a high-performance heat exchanger with the above-mentioned mesh-like fino structure 2 is used, the indoor unit can be downsized to the extent that the heat exchange efficiency is high.

However, in general, the shape of the heat exchanger 32 is flat as a whole, as shown in FIG. The cedar shape of the replacement 432 is fixed in the direction of inclination. Therefore, if heat exchange 43 as shown in L.
2: Even if the heat exchanger 32 itself were to be made into a Ni type, making the heat exchanger 32 itself thinner would not directly result in a sufficiently thinner indoor unit. First, there is the problem that its contribution is small. In the figure, reference numeral 30 indicates the main body of the air conditioner, 34 indicates an Eck type blower, and 35 indicates an air outlet.

Further, the same holds true for cross-fin coils as it is difficult to directly link the thinning of the heat exchanger to the thinning of the indoor unit.

Therefore, the present invention has been made to ensure compactness and quietness while ensuring a high level of heat exchange performance in an air conditioner equipped with a mesh fin type heat exchanger and a cross fin type heat exchanger.

(Technical background of the present invention) In the process of researching means for solving the above problems, each of the present inventions first discovered that when air is made to flow through a heat exchanger, the magnitude of the suction angle of the air into the heat exchanger 4 is determined by the heat exchanger. We focused on the conventionally well-known technical fact that it has almost no effect on the heat transfer performance and ventilation resistance of the heat exchanger, and based on this, we bent the heat exchanger, which was conventionally formed into a plate shape, into a mountain-shaped or wavy shape. Then, as described below, we tried to reduce ventilation resistance while securing the heat transfer area, and further developed this.
The flow of air flowing through the heat exchanger is made smooth by the arrangement of the heat exchanger in the air flow path and the selection of the blower, and the synergistic effect of these makes it possible to ensure heat exchange performance while making the device more compact or The idea was to achieve quiet operation.

That is, as shown in Fig. 23, when two heat exchangers are arranged side by side in the air flow direction (referring to (a) in the same figure), the heat exchanger is bent and its heat transfer area is When one heat exchanger is placed in the air flow direction as in case (a), its ventilation resistance (△
P), as shown in the characteristic diagrams (a) and (b) in the same figure, the ventilation resistance (i.e., the amount of reduction in wind speed) is much smaller when the heat exchanger is in a bent configuration. I understand that.

This means that when the heat exchanger has a bent configuration, the heat transfer performance decreases slightly due to the decrease in wind speed when passing through the heat exchanger, but on the other hand, the heat transfer area of the heat exchanger itself This shows that even though they are the same, the ventilation resistance ΔP is significantly reduced and it is possible to maintain a high cross-flow velocity, thereby achieving even higher heat exchange performance.

Therefore, for example, in a heat exchanger to which mesh fins are applied, in order to ensure the same heat exchange performance as that of a conventional structure, the number of laminated mesh fins must be reduced accordingly. Further, when the ventilation resistance is maintained at the same level, the heat exchange performance can be improved by increasing the number of mesh fin products WAFfA.

On the other hand, in a heat exchanger that uses cross fins, if the fin pitch is set the same, the heat transfer area can be increased; By increasing the fin pitch, ventilation resistance can be reduced, which in any case can contribute to improving heat transfer performance.

(Means for solving the problem) The present invention is based on such background art,
As a specific means to solve the above problems, (1) Claims! The described invention, as illustrated in FIG. 1, includes a blower 6 and a heat exchanger 5 disposed in and across the airflow passage 4 of the main body housing 1 housing the blower 6. In the air conditioner, the heat exchanger 5 has a bent shape of 17 L, and is arranged so that its bent convex portion 5a or bent concave portion 5b is oriented in the direction of the air flow path 4, b) In the invention as claimed in claim 2, as illustrated in FIG. 55, in which the air flow passage 4 is formed vertically in the main body housing 1, and the air outlet 3 thereof is opened downward in the main body housing 1; heat exchange'j55
a mesh fin II through which air can flow; 11. ... are laminated in multiple layers, and heat transfer tubes 1212,
(III) Claim 3, characterized in that the air conditioner is configured by arranging . The invention according to claim 4 is characterized in that, in the air conditioner according to claim 2, as illustrated in FIG. As illustrated in the figure, the air conditioner according to claim 2 is characterized in that the blower is constituted by a knick-type cross-flow fan 7, (V) In the invention according to claim 5, as illustrated in FIG. 11, In the air conditioner according to claim 1, the heat exchanger 5 is formed by laminating a plurality of layers of mesh-like fins 11 through which air can flow, and arranging heat transfer tubes 12 inside the mesh-like fins 11, which are arranged in a mountain shape or a wave shape. (Vl) In the invention according to claim 6, in the air conditioner according to claim 1, as illustrated in FIG. A plurality of thin plate-like fins having a planar shape + 3.13. ..., multiple heat exchanger tubes +
2.12. . . . characterized in that they are attached at a predetermined pitch in the axial direction so as to straddle each other, (■) In the invention set forth in claim 7, as illustrated in FIG. In the air conditioner of 12.degree. +2. ... are arranged in a direction substantially perpendicular to the ridge line Q in the bent form of the heat exchanger 5, (■) In the invention according to claim 8, as illustrated in FIGS. In the air conditioner according to claim 5, claim 6, or claim 7, the air suction port 2 of the air flow passage 4 provided in the main body housing 1 is arranged in the upper part of the main body housing 1, and the air suction port 3 is arranged in the upper part of the main body housing 1. (IX) In the invention of claim 9, as illustrated in FIGS. 18 and 19, In this air conditioner, the air inlet 2 of the air flow passage 4 formed in the main housing 1 is formed on the back of the main housing 1, and the air outlet 3 is formed on the front of the main housing 1. (X) Claims! In the invention described in 0, FIG.
As exemplified in FIG.
It is characterized in that an air outlet 3 is formed at the rear of the main body housing (2) and on the curved surface of the main body housing (2).

(Function) With such a configuration, the following effects can be obtained in each invention of the present application.

(i) In the air conditioner according to claim 1, the heat exchanger 5
has a bent shape and is arranged with its bent convex portion 5a or bent concave portion 5b oriented in the four directions of the air flow passages, for example, when the heat exchanger has a rectangular shape. Compared to the above, the heat transfer area per cross-sectional area of the same air flow path is effectively increased due to the bent shape of the heat exchanger 5, and the heat exchange efficiency can be greatly improved. When is kept constant, it is possible to increase the interval between each fin to reduce ventilation resistance.

(11) In the air conditioner according to claim 2, the mesh fin I generally has high viscosity exchange performance. 1.11. . The heat transfer area is further increased.

Further, since the air flow passage 4 is formed vertically and one air outlet 3 is opened downward, the operation noise is suppressed from coming out to the front side of the air conditioner.

(111) In the air conditioner according to claim 3, the Kester-type cross-flow fan 6, which is most suitable for linear flow, is adopted as the blower, so that the air flow is formed in the vertical direction within the main body housing i. The air flows through the flow path 4 in a more natural manner, and ventilation noise is suppressed as much as possible.

(iv) In the air conditioner according to claim 4, since the blower employs a nick cedar crossflow fan 7 that is most suitable for blowing air in a right angle direction, the air conditioner from the blower to the air outlet 3 in the vertical direction This makes it possible to further shorten the interval.

(V) In the air conditioner according to claim 5, the mesh fins l 1,1 +, . , the increase in heat transfer area is further promoted.

(vi) In the air conditioner according to claim 6, thin plate-like fins l3. +3. In an air conditioner using..., the same effect as described in Section 2 (v) can be obtained.

(vII) In the air conditioner according to claim 7, the above (V)
In addition to the described actions, each heat exchanger tube + 2.12. ... are arranged in a direction substantially perpendicular to the direction of the ridge line Q in the bent form of the heat exchanger 5, so that the fan generally has a cross-flow characteristic in which the wind speed distribution differs in the depth direction of the air flow passage 4. Even when a fan is used, it is possible to suppress the influence of the wind speed distribution on heat exchange performance as much as possible.

(vi) In the air conditioner according to claim 8, the heat exchanger 5 bent in a mountain shape or a wave shape is disposed in the air flow passage 4 formed vertically so as to cross the same. Since the air is made to flow from the air suction port 2 formed in a part of the air flow passage 4 toward the air suita port 3 formed in the lower part, for example, the heat exchanger 5 is arranged in a rectangular shape. Compared to the case where the JF three-fold structure is formed, it is possible to secure the same heat transfer area within a smaller depth dimension.

(ix) In the air conditioner according to claim 9, the air flow passage 4 of the main body housing 1 is provided with an air suction port 2 on the front side thereof.
Since it is bent into a mountain shape or a wave shape so as to cross the air flow flowing from the air outlet 3 toward the air outlet 3 on the back side, it is possible to reduce the size of the device in the vertical direction or the horizontal direction.

(x) In the air conditioner according to claim IO, the air flow passage 4 of the main body housing 1 is connected to the air suction port 2 on the rear side thereof.
Since it is bent into a mountain shape or a wave shape so as to cross the air flow flowing from the air outlet 3 toward the air outlet 3 on the front side, it is possible to reduce the size of the device in the vertical direction.

(Effects of the Invention) Therefore, according to each invention of the present application, the following effects can be obtained.

(2) In the air conditioner according to the first aspect, by making the heat exchanger 5 have a bent structure, there is an effect that both improvement in heat exchange performance and miniaturization of the device can be achieved.

(2) In the air conditioner according to claim 2, the heat exchanger 5 includes mesh fins 11.11. Due to the bending structure using..., high heat exchange performance and compactness of the device can be obtained, as well as quiet operation of the device.

(2) In the air conditioner according to the third aspect, by employing the Kester type cross-flow fan 6, there is an effect that a higher level of quietness is achieved than in the case (2) above.

(2) In the air conditioner according to claim 4, by employing the nick-type cross-flow fan 7, in addition to the effect described in (2) above, there is an effect that the device can be made more compact.

(2) In the air conditioner according to claims 5 and 6, the mesh fins 11.11. ...or thin plate-like fins 13, 13.
The heat transfer area is increased by forming the .

(2) In addition to the effect described in (1) above, the air conditioner according to claim 7 has the advantage that the influence of the wind speed distribution of the air flowing through the heat exchanger 5 on the heat exchange performance is suppressed as much as possible. Another effect is that it is possible to ensure a high level of heat exchange performance.

(2) In the air conditioner according to the eighth aspect, since the required heat transfer area can be secured within a smaller depth dimension, it is possible to further promote the thinning of the device.

(2) The air conditioner according to claim 9 has the advantage of promoting thinning of the outdoor unit of the air conditioner.

(2) The air conditioner according to claim 10 has the effect of promoting compactness in the vertical direction, especially in an air conditioner suspended from a ceiling surface.

(Embodiments) Hereinafter, air conditioners according to embodiments of each invention of the present application will be described with reference to the accompanying drawings.

First Embodiment (See FIGS. 1 to 9) FIGS. 1 to 3 show the overall configuration of an air conditioner according to a first embodiment of the present invention. This air conditioner is
The invention according to Claims I, 2 and 3 of the present application is applied to an indoor unit, and in each of the above figures, reference numeral 1 indicates a main body housing of the air conditioner (indoor unit), and 2 indicates the main body housing. 1 is an air suction port formed on one side of the main body 1, and 3 is an air outlet opened on the bottom side of the main body 1.

Further, this air outlet 3 is provided with one wind direction control plate.

The main body housing l is configured as a wall-mounted piece as flat as possible, and inside thereof there is a substantially flat wall extending from the upper side to the lower side from the air inlet 2 to the air outlet 3. A straight air flow path 4 is formed.

In this air flow passage 4, a heat exchanger 5 and a Kester cedar crossflow fan 6 (corresponding to the blower in the claims), which will be described later, are installed in order from the most upstream position to the downstream side, as shown in the figure. has been done.

The heat exchanger 5 is constructed by laminating mesh fins II, I+, . 1
7. Multiple flexible electric heating tubes inside + 2.
12. ... (corresponding to the heat exchanger tubes in the claims) are inserted through the fin units IO, 10, etc., which are stacked in multiple layers at predetermined intervals. The heat exchanger 5 utilizes a plurality of support rods 15, 15, etc. provided vertically at a predetermined interval to construct the air flow passage 4.
and each bent convex portion 5 a, 5 a, ... and each bent concave m 5 b,
5 b.

... are mounted in such a manner that they are oriented in the four directions of the airflow passages.

Then, in the vertical zigzag bent state, the electric heating tubes I2, 12. When a current of a predetermined value is passed through the heater wires in .
．． As shown in Fig. 4, the air flow introduced from the air suction port 2 is passed through in the direction of the slope, and the current flows through the heater wires in each of the electric heating tubes l2.12°. The mesh fins I between the Joule heat generated depending on the value and the throughflow air 1. +1. Extremely efficient heat exchange takes place through...

Further, as shown in the figure, the Kester type cross-flow fan 6 has a casing structure that sucks in air from above and blows out air substantially linearly downward, and its outflow axis on the differential user side is It is installed so as to match the air blowing direction of the air flow passage 4.

Therefore, the air flow sucked in from the air suction port 2 by the drive of the Kester type cross-flow fan 6 is as shown in FIGS. 1 and 3.
As shown in FIG. 4 and FIG. 4, each fin unit io of the heat exchanger 5 is in a bent state.

10, . . ., the water flows in the direction of the slope and flows out from the direction of the slope. In this case, the amount of intake air sucked through the bipedal air suction port 2 is basically determined by the diameter of the air suction port 2, the cross-sectional area of the air flow passage 4, and the blowing capacity of the Kester type cross-flow fan 6. However, the contact area (heat transfer area) of the heat exchanger 1jj 5 that comes into contact with the predetermined amount of air is smaller than the above when compared to the case where the body is simply installed horizontally (flat) (conventional). By bending it in this way, it can be made much wider (for example, when the bending angle is θ-50 to 60° as shown in the figure, it can be expanded to about twice the size).

Therefore, the heat exchange performance can be greatly improved or decreased by increasing the heat transfer area.

Moreover, as described in the above section [Technical background of the present invention], under a certain heat exchange performance, the above-mentioned mesh fin + 1.11. It also means that ventilation resistance can be reduced by reducing the number of layers. Therefore, in the case of the configuration of this embodiment, the heat transfer performance is slightly reduced due to the decrease in wind speed when passing through the heat exchanger, but on the other hand, although the heat transfer area of the heat exchanger itself is the same, However, since the ventilation resistance is significantly reduced, the cross-flow air velocity can be maintained high, and as a result, the heat exchange performance can be further improved. Conversely, the heat exchange performance can be similarly improved by simply increasing the number of laminated layers until a predetermined ventilation resistance is reached.

That is, according to the configuration of this embodiment, the main body unit of the air conditioner can be made compact, and the heat exchange performance can be improved, which is an obvious advantage.

Furthermore, in the above configuration, the air inlet 2 and the air outlet 3
The airflow passage 4 leading to the main body I
This is advantageous for making it thinner, and since no opening is formed on the front side, it is also advantageous in terms of noise reduction.

By the way, as is clear from the above points, the above heat exchange'? The heat exchange performance of 55 parts is greatly influenced not only by the heat transfer area but also by the magnitude of ventilation resistance. Therefore,
Although it is better for the ventilation resistance to be as small as possible, there is generally a trade-off between increasing the heat transfer area and reducing the ventilation resistance. In this sense, the portion that would normally cause ventilation resistance should be brought into contact with the air flow as a heat transfer surface as effectively as possible.

Therefore, as a means to further improve heat transfer performance, it is possible to overcome the turbulence of airflow and simultaneously improve the performance of the tubes themselves by changing the tube arrangement. Rather than arranging them in different positions, it is preferable to arrange them in mutually different positions as shown in FIGS. 7 to 9.

In this embodiment, an electric heating tube is used as the heat transfer tube, but it goes without saying that the heat transfer tube may be a refrigerant tube without passing liquid refrigerant, for example.

In this case, since drain is generated by making the heat exchanger 5 act as an evaporator, drain pans are arranged below each of the bent surfaces on the lower end side of the heat exchanger 5, and each of these drain pans is A conceivable solution would be to receive the drain, collect it in common, and discharge it to the outside via, for example, a drain pump.

Second Embodiment (See FIG. 10) FIG. 1O shows an air conditioner according to a second embodiment of the present invention. This embodiment has an indoor unit as claimed in claim 1. The invention is an application of the inventions described in 2 and 3,
Specifically, in the air conditioner of the first embodiment, the Kester-type cross-flow fan 6 is changed to a knick-type cross-flow fan 7 having a configuration suitable for flowing air in a right angle direction.

Therefore, when the knick-type cross-flow fan 7 is used, it goes without saying that the heat exchange performance can be improved as in the case of the first embodiment. Since the vertical distance between the nick-shaped cross-flow fan 7 and the air outlet 3 can be made as short as possible, it is possible to particularly promote the compactness of the air conditioner in the vertical direction.

Third Embodiment (See FIGS. 1I to 13) FIG. 11 shows an air conditioner according to a third embodiment of the present invention. This air conditioner is provided in claim 1. Same 2. Same 3. Same 5. The inventions described in 7 and 8 are applied to an indoor unit, and the aim is to improve heat exchange performance, make the indoor unit more compact in the thickness direction (in the rear direction), and achieve quieter operation. It is in. Specifically, a Kester-type cross-flow fan 6 is used as a blower to smooth the air flow in the air flow passage 4 to make it quieter, while the heat exchanger 5 is equipped with mesh fins + 1. 11. ...The heat exchange performance is improved by binding and making the NR structure bent into a mountain shape.

That is, as shown in FIG. 12, the heat exchanger 5 includes mesh fins l 1,1 +, . . . and heat transfer tubes 12, 12, . The fin unit IO described above is bent into a mountain shape extending in the width direction thereof, and a plurality of fin units IO are laminated.

The heat exchanger 5 is disposed within the main body housing I so that its slope direction coincides with the front-rear direction of the main body housing I. Therefore, in this embodiment, compared to the case where the heat exchanger 5 is rectangular,
The heat transfer area per cross-sectional area of the same air flow path is effectively increased due to the bent shape of the heat exchanger 5, and the efficiency of heat exchange can be greatly improved.

Further, since the heat exchanger 5 is bent in the front-rear direction of the main body housing I, the indoor unit can be particularly compact in the front-rear direction.

Furthermore, 3 electric heating tubes + 2.12. when configuring the fin unit IO. The arrangement direction of... is the 12th
As shown in the figure, the electric heating tubes +2.12, . 12, . This is also the 12th
(It is bent into a mountain shape similar to the one shown in the figure).

Particularly in the latter case, as shown in this embodiment, each heat exchanger tube + 2.12. ... are independently branched from each other, and a higher level of heat exchange performance is achieved with almost no influence from the wind speed distribution of the air flowing through the heat exchanger 5. In other words, when using a loss-flow type fan 6 as shown in Fig. 1, in the cross-flow type fan, the wind speed generally differs in the depth direction of the airflow passage 4, and
There is a characteristic that the wind speed is fast in the area and slows down in the back. Therefore, in such a case, each heat exchanger tube + 2
．． 12. ... are arranged in a direction perpendicular to the direction of the ridge line a in the bent form of the heat exchanger 5, each of these heat exchanger tubes + 2.12. Despite the configuration in which ... are separated from each other independently, the wind speed distribution for each pass and the distribution of heat load (temperature change) in the wind direction are almost the same, so there is no influence from these. to each heat exchanger tube 12, 12. ... is supplied with a uniform amount of heat. For this reason, for example, in a flow divider (not shown), each heat exchanger tube +2.12. As long as the distribution of refrigerant to... is set evenly, it is possible to prevent refrigerant drift due to changes in heat load caused by air drift, etc., and ensure a higher level of heat exchange performance. It is possible.

Further, in this embodiment, the heat exchanger 5 is bent into a substantially F-shaped chevron shape, but the bent shape is not limited to this, and for example, a 7-shape or a W-shape chevron shape. To,
Alternatively, it can be colored in a smoothly curved wave shape.

Fourth Embodiment (See FIG. 14) FIG. 14 shows an air conditioner according to a fourth embodiment of the present invention. This air conditioner is claimed in claim 1 of the present application.
．． Same 2. Same 4. Same 5. Same 7. The invention described in the eighth embodiment is applied to an indoor unit, and specifically, in the third embodiment, the custard cross-flow fan 6 is changed to a knick-type cross-flow fan 7.

By adopting such a configuration, in addition to the effect of improving heat exchange performance due to the bent configuration of the heat exchanger 45, it is possible to promote compactness in the upper F direction of the air conditioner as a unique effect of the knick-type cross-flow fan 7. It happens.

Fifth Embodiment (See FIGS. 15 and 16) FIG. 15 shows an air conditioner according to a fifth embodiment of the present invention. This air conditioner is defined in claim 1 of the present application. Same 6. The invention described in 8 is applied to an indoor unit, in which a custard cross-flow fan 6 is disposed within the airflow passage 4 of the main body housing l, and a heat source described below is placed above the custard cross-flow fan 6. It is configured by arranging an exchanger 5.

As shown in FIGS. 15 and 16, the heat exchanger 5 includes a plurality of thin plate-like fins formed by punching out a thin plate in an F-shape.
3. +3. ... are several heat transfer tubes 12, 12 . . . arranged in parallel at predetermined intervals. It is constructed by being attached at predetermined intervals in a direction perpendicular to ..., and has an overall mountain-shaped configuration.

The heat exchanger 5 is attached to the main body housing l with its inclined surface facing in the front-rear direction of the main body housing l. located within. Therefore, the air flow flowing through the air flow passage 4 from above toward the air outlet 3 below flows into the heat exchanger 5 from the sloped portion thereof and flows out from the sloped portion thereof. While passing through the heat exchanger 5, each heat transfer tube 12. +2. ...exchanges heat with the refrigerant inside.

In this air conditioner, the heat exchanger 5 has thin plate-like fins 13.13. ..., the following advantages can be obtained compared to, for example, a case where the fin is formed of a rectangular thin plate-like fin (conventional structure). That is, since the heat transfer area per thin plate fin 13-4 is large, for example, all thin plate fins I3.
+3. When the number of sheets is the same, the heat transfer area increases, thereby improving heat transfer performance.

In addition, when the ventilation resistance in the heat exchanger 5 is set to the same level as in the case of the conventional structure, since the heat transfer area per thin plate fin 13 is large, the thin plate fin 13.
．． By reducing the number of fins and increasing the fin pitch, it is possible to reduce ventilation resistance.

Sixth Embodiment (See FIG. 17) FIG. 17 shows an air conditioner according to a sixth embodiment of the present invention. This air conditioner is the claim of this application! ,
Same 6. The invention described in 8 is applied to an indoor unit, and specifically, the Kester type cross-flow fan 6 of the fifth embodiment
The configuration is such that the fan 7 is changed to a nick-type cross-flow fan 7.

Therefore, in the air conditioner of this embodiment, the fifth
In addition to the functions and effects obtained in the embodiment, a unique effect of adopting the knick-type cross-flow fan 7 is that the device can be made more compact in the vertical direction.

Seventh Embodiment (See FIG. 18) FIG. 18 shows an air conditioner according to a seventh embodiment of the present invention. The air conditioner of this embodiment is defined in claim 1 of the present application. The inventions described in 5 and 9 are applied to an outdoor unit, and the air flow passage 4 of the main body housing 1 is provided with an air inlet 2 on the front side and an air outlet 3 on the back side. A heat exchanger 5, which will be described later, is disposed across the airflow passage 4, and an axial fan 8 (corresponding to the blower in the claims) is disposed downstream thereof.

The heat exchanger 5 has a fin unit +0.10. consisting of mesh fins l 1,1 +, . . . similar to those used in the first embodiment. It is constructed by laminating a plurality of sheets and bending them into a W-shaped mountain shape.

The heat exchanger FIA device 5 is arranged within the main body housing 1 so that its bending direction coincides with the vertical direction.

In the air conditioner configured in this way, the first
- Effects specific to the heat exchanger 5 in which the mesh fins 11, 11, etc. are bent as in the fourth embodiment (i.e., improvement in heat transfer performance due to increase in heat transfer area or decrease in ventilation resistance) In addition to this, since the heat exchanger 5 is bent in the vertical direction, the device can be made more compact in the vertical direction.

Eighth Embodiment (See FIGS. 19 and 20) FIG. 19 shows an air conditioner according to an eighth embodiment of the present invention. This air conditioner is defined in claim 1 of the present application. Same 6. The invention described in 9 above is applied to an outdoor unit, and specifically, the seventh embodiment uses mesh fins II, 11, etc. types as the heat exchanger 5. However, the heat exchanger? Laminar fin + 3.1 as 55
3. ... type was used. As shown in FIG. 20, the heat exchanger 5 of this embodiment has a plurality of thin plate-like fins formed by punching out a thin plate in a substantially W-shape!
3.13. 2.12. They are attached at predetermined intervals in a direction perpendicular to...

Therefore, in the air conditioner of this embodiment, thin plate fins + 3.13. The same effects as the air conditioners of the fifth and sixth embodiments using ... (i.e., the effect of improving heat transfer performance or energy efficiency) can be obtained, and at the same time, the effects unique to the seventh embodiment can be obtained. Effects (namely, vertical compactness of the device) can also be obtained.

Ninth Embodiment (See FIG. 21) FIG. 21 shows an air conditioning machine according to a ninth embodiment of the present invention. This air conditioner is based on claim 1 of this morning.
Same 5. The invention described in 10 above is applied to a ceiling-mounted indoor unit, and the air is stored in the main body housing 1, which has an air suction port 3 on the front surface and an air suction port 2 on the rear lower surface of the main body housing 1. A heat exchanger 5, which will be described later and bent into a mountain shape so as to cross the flow path 4, is disposed, and a centrifugal fan 9 is disposed upstream of the heat exchanger 5.

This heat exchanger 5 has mesh fins similar to those applied in the third and fourth embodiments + 1.11. It is constructed by stacking fin units I0, 10, etc. in a multi-layered manner and bending them into a mountain shape. The heat exchanger 5 is arranged inside the main body in a vertically bent state.

Therefore, in the air conditioner of this embodiment, the mesh [1-shaped fin l 1. +1. ...Special for heat exchanger 5 of type (
At the same time, since the heat exchanger 5 is bent downward, the air conditioner can be made more compact in the vertical direction.

In addition to forming the air suction port 2 on the rear lower surface of the main body casing 1 as in this embodiment, it can also be formed, for example, on the rear back surface.

10th Embodiment (See FIG. 22) FIG. 22 shows an air conditioner according to a 10th embodiment of the present invention. This air conditioner is claimed in claim 1 of the present application.
．． Same 6. The invention described in the tenth embodiment is applied to a ceiling-mounted indoor unit, and specifically, in the air conditioner of the ninth embodiment, the heat exchanger 5 is connected to the mesh fins 11.
11. ... type of thin plate fin + 3.13
．． ...The configuration has been changed from the type. Therefore, the air conditioner of this embodiment can provide the same effects as the air conditioner of the ninth embodiment.

[Brief explanation of the drawing]

FIG. 1 is a sectional view showing the configuration of an air conditioner according to a first embodiment of the present invention, FIG. 2 is a partially cutaway plan view of FIG. 1, and FIG.
The figure is a partially cutaway front view of Figure 1, Figure 4 is a perspective view of a part of the heat exchanger which is the main part of the air conditioner, Figure 5 is an enlarged perspective view of the fin part of the exchanger, Figures 6 to 9 are schematic cross-sectional views showing the arrangement form of electric heating tubes of the same exchanger;
0 is a sectional view showing the configuration of an air conditioner according to a second embodiment of the present invention, FIG. 11 is a sectional view showing the configuration of an air conditioner according to a third embodiment of the present invention, and FIG. 12 is a sectional view thereof. A perspective view of a fin unit constituting a heat exchanger, FIG. 13 is a plan view showing another embodiment of the fin unit, and FIG. 14 is a cross section showing the configuration of an air conditioner according to a fourth embodiment of the present invention. 15 is a sectional view showing the configuration of an air conditioner according to a fifth embodiment of the present invention, FIG. 16 is a perspective view showing the configuration of a heat exchanger thereof, and FIG. 17 is a sixth embodiment of the present invention. FIG. 18 is a sectional view showing the configuration of an air conditioner according to the seventh embodiment of the present invention, and FIG. 19 is an air conditioner according to the eighth embodiment of the present invention. FIG. 20 is a cross-sectional view showing the structure of a conditioner; FIG. 20 is a perspective view showing the structure of its heat exchanger; FIG. 21 is a cross-sectional view showing the structure of an air conditioner according to a ninth embodiment of the present invention; FIG. 23 is a graph showing the ventilation resistance characteristics of the heat exchanger, and FIG. 24 is a cross-sectional view showing the structure of a conventional air conditioner according to the tenth embodiment of the present invention. It is a diagram. l...Body housing 2...Air inlet 3...Air outlet 4...Air flow path 5...Heat exchanger 6... Kester type cross flow fan 7... Nick type cross flow fan 8 ・ ・ 9 ・ ・ 10 ・ 1 l ・ l 2 ・ l 4 ・ l 5 ・ Axial flow fan, centrifugal fan, fin unit, mesh fin, heat transfer tube (Electric heating duplex) ・Drain water receiver/support rod upper side -130-

Claims (1)

[Claims] 1. A blower (6 to 9) and a heat exchanger disposed in and across the airflow passage (4) of the main body housing (1) that houses the blower (6 to 9). An air conditioner comprising an exchanger (5), wherein the heat exchanger (5) has a bent shape and has a bent protrusion (5a) or a bent recess (5b).
) are arranged and formed to be oriented in the direction of the air flow path (4). 2. A blower (6 to 9) and a heat exchanger (5) disposed in and across the airflow passageway (4) of the main body housing (1) housing the blower (6 to 9); An air conditioner comprising: the air flow passage (4) is formed vertically within the main body housing (1), and the air outlet (3) is formed in the main body housing (1). The heat exchanger (5) is opened downward, and the heat exchanger (5
) is a mesh fin (11.11, ・) that allows air to flow through.
・) are laminated in multiple layers, and heat transfer tubes (1
2.12,...) and bent, and the bent convex part (5a) or bent concave part (5b)
An air conditioner characterized in that the air conditioner is arranged so as to be oriented in the direction of the air flow passage (4). 3. The air conditioner according to claim 2, wherein the blower is comprised of a Kester-type cross-flow fan (6). 4. In claim 2, the blower is an Eck type cross-flow fan (
7) An air conditioner characterized by comprising: 5. In claim 1, the heat exchanger (5) has a plurality of layered mesh fins (11.11, . . . ) through which air can flow, and heat transfer tubes (12.12, . . . ) and are formed by forming them into a mountain shape or a wave shape. 6. In claim 1, the heat exchanger (5) comprises a plurality of thin plate-like fins (1) having a mountain-like or wavy planar shape.
3.13,...) and multiple heat exchanger tubes (12.12,...
) An air conditioner characterized in that the air conditioners are installed at a predetermined pitch in the axial direction so as to straddle each other. 7. In claim 5, a plurality of heat exchanger tubes (12.12, .
・) is the ridge line (l) in the bent form of the heat exchanger (5)
An air conditioner characterized by being arranged in a direction substantially perpendicular to the direction. 8. Claim 5 or 6 or 7, wherein the air intake port of the air flow passage provided in the main body housing is formed in the upper part of the main body housing, and the air outlet is formed in the lower part of the main body housing. An air conditioner characterized by: 9. In claim 5, claim 6, or claim 7, the air suction port (2) of the air flow passage (4) formed in the main body housing (1) is located at the back of the main body housing, and the air outlet (3) ) are formed on the front surface of the main body housing (1). 10. In claim 5 or 6 or 7, the air suction port (2) of the air flow passage (4) formed in the main body housing (1) is located at the rear of the main body housing (1), and An air conditioner characterized in that the outlets (3) are respectively formed on the front surface of the main body housing (1).