JPH06137590A - Air conditioner - Google Patents

Abstract

PURPOSE:To provide an air conditioner in which performance and integration of a heat exchanger can be enhanced. CONSTITUTION:This air conditioner A1' comprises a front opening 1 formed at a front surface of a body front side, an upper opening 2 formed at an upper surface of the body, a cross flow fan 3 for sucking the airs from the front part, a front heat exchanger 4 arranged in a flow of the air directed from the opening 1 toward the fan 3, and a rear heat exchanger 5 arranged in a flow of the air mainly directed from the opening 2 toward the fan 3. The exchanger 5 is disposed substantially parallel with the exchanger 4. With this structure, the conditioner in which performance, integration of the exchangers can be enhanced can be 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, and more particularly to an internal structure of an indoor unit of a separate type air conditioner.

[0002]

2. Description of the Related Art FIG. 7 is a side sectional view showing the internal structure of a first example A ₁ of a conventional air conditioner, and FIG. 8 is a side sectional view showing the internal structure of a second example A ₂ of a conventional air conditioner. , Fig. 9
FIG. 6 is a side sectional view showing an internal structure of a third example A ₃ of a conventional air conditioner.

As shown in FIG. 7, an indoor unit of a conventional separate type air conditioner A ₁ has a blower equipped with a cross flow fan 3 and a casing 6, and a heat exchanger 4'on the suction side of the blower. This heat exchanger 4'is provided.
Were usually configured in a straight line. However, due to the recent demand for smaller size and higher performance, the air conditioner A ₂ shown in FIG.
The heat exchanger may have a bent portion as in
No. 106228, Japanese Patent Laid-Open No. 3-241243), and a heat exchanger is divided and arranged in an inverted V-shape like the air conditioner A ₃ shown in FIG. 9 (Japanese Utility Model Laid-Open No. 4-14921).
As a result, the unit has been made compact and the heat exchanger has been highly integrated.

[0004]

However, there is a limit to high integration in a heat exchanger having a bent portion as in the conventional air conditioner A ₂ as described above. Further, in the heat exchanger arranged in an inverted V shape like the air conditioner A ₃ , the air suction direction of the rear heat exchanger 5 is from the upper back surface direction of the unit as indicated by the arrow X. For this reason, when the air conditioner A ₃ is actually installed near the ceiling, the air flow is from the front, and there is much difficulty in the air flow around the unit and inside the unit, and the performance of the heat exchanger can be fully exhibited. There was a fear that there was no.

In order to solve the problems in the prior art, the present invention aims to provide an air conditioner which improves the air conditioner and can improve the performance and integration of the heat exchanger. It is a thing.

[0006]

In order to achieve the above object, the present invention provides an opening formed in a front surface portion and an upper surface portion on a front surface side of a main body, a fan for sucking air from the opening, and an opening. A first heat exchanger mainly arranged in the air flow from the front face toward the fan, and a second heat exchanger mainly arranged in the air flow in the opening from the upper face of the main body toward the fan. An air conditioner comprising a heat exchanger, wherein the second heat exchanger is arranged substantially parallel to the first heat exchanger. .

Further, there is provided an air conditioner in which one of the first heat exchanger and the second heat exchanger is provided with a notch at a predetermined position while leaving a part of the connecting portion and is bent at the connecting portion.

Further, there is provided an air conditioner in which either one of the first heat exchanger and the second heat exchanger is separated at a predetermined position and adjacently arranged at a predetermined angle.

Further, there is an air conditioner in which the tube plates of the first and second heat exchangers are integrally connected to each side surface.

Further, a drain pan is provided below each of the first and second heat exchangers, and the heat exchangers are shielded so as to close the air passage in the gap between the heat exchangers. The air conditioner is provided with a partition plate, and the drain pan for the second heat exchanger and the partition plate are integrally formed.

Further, a recess for guiding the drain water collected in the drain pan for the second heat exchanger to the drain pan for the first heat exchanger is formed in the common support portion of both heat exchangers. It is an air conditioner.

[0012]

According to the present invention, the opening formed in the front surface portion on the front surface side of the main body, the fan for sucking air from the opening, and the fan arranged in the air flow mainly from the front surface portion toward the fan among the openings. The second air conditioner, which includes a first heat exchanger provided and a second heat exchanger disposed in the flow of air mainly from the upper surface of the main body toward the fan in the opening. Heat exchangers are arranged substantially parallel to the first heat exchanger.

Therefore, even when the air conditioner is arranged near the ceiling, the air flow smoothly flows into the inside of the air conditioner from the front, so that the performance of the heat exchanger can be sufficiently exhibited (that is, the wall, etc.). There is no risk of failure due to).

As a result, it is possible to obtain an air conditioner capable of achieving high performance and high integration of the heat exchanger.

Further, one of the first and second heat exchangers has a structure in which a cut is provided at a predetermined position while leaving a partial connection part and the structure is bent at the connection part, or at a predetermined position. The structure is such that they are separated and adjacent to each other at a predetermined angle.

As a result, higher performance and higher integration of the heat exchanger can be further promoted.

Further, the tube plates of the first and second heat exchangers are integrally connected to each side surface.

As a result, the tube sheet is used as a part of the blower casing, so that the casing structure can be simplified and the assembling performance can be improved.

Further, a drain pan is provided in the lower part of each of the first and second heat exchangers, and the heat exchangers are shielded so as to close the air passage in the gap between the heat exchangers. A partition plate is provided, and the drain pan for the second heat exchanger and the partition plate are integrally molded.

As a result, the drain water generated by each heat exchanger can be reliably recovered in each drain pan and the heat exchange efficiency of the heat exchanger can be improved.

Furthermore, a recess for guiding the drain water collected in the drain pan for the second heat exchanger to the drain pan for the first heat exchanger is formed in the common support portion of both heat exchangers.

As a result, the drain water from the upper drain pan can be reliably guided to the lower drain pan with a simple structure.

[0023]

Embodiments of the present invention will be described below with reference to the accompanying drawings for the understanding of the present invention. The following embodiments are examples of embodying the present invention and are not intended to limit the technical scope of the present invention.

FIG. 1 is a side sectional view showing the internal structure of an air conditioner A ₁ ′ according to the _first embodiment of the present invention, and FIG. 2 is an air conditioner according to the second embodiment of the present invention. 3 is a side sectional view showing the internal structure of A ₂ ′, FIG. 3 is a side sectional view showing the internal structure of an air conditioner A ₃ ′ according to the _third embodiment of the present invention, and FIG. 4 is a fourth embodiment of the present invention. FIG. 5 is a side sectional view showing the internal structure of an air conditioner A ₄ ′ according to an example, FIG. 5 is an explanatory view (a) to (d) showing the shape of the heat exchanger during manufacturing, and FIG. 6 is a structure around the drain pan. It is sectional drawing (a)-(c). In addition, the first example A ₁ and the second example A _{2 of} the conventional air conditioner shown in FIGS.
The same reference numerals are used for the elements common to the side sectional view showing the internal structure in the third example A ₃ .

As shown in FIG. 1, an air conditioner A ₁ ′ according to the first embodiment has a front opening 1 formed in a front plate (corresponding to the front surface of the main body) on the front side of the main body and an upper end of the front plate. Upper opening 2 formed in a ceiling plate (corresponding to the upper surface of the main body) mounted in a substantially right-angled direction to the section, and a crossflow fan 3 (corresponding to a fan) that sucks air from the front and upper openings 1 and 2.
And a front heat exchanger 4 (corresponding to a first heat exchanger) arranged mainly in the air flow from the front opening 1 toward the crossflow fan 3, and mainly from the upper opening 2 to the crossflow fan 3 The rear heat exchanger 5 (corresponding to a second heat exchanger) arranged in the flow of air toward is similar to the conventional example. However, the present embodiment is different from the conventional example in that the rear heat exchanger 5 is arranged substantially parallel to the front heat exchanger 4.

The operation of the air conditioner A ₁ ′ will be described below.

That is, a blower casing 6, a lower drain pan 7, a stabilizer 8, an upper drain pan 9, and a partition plate 10 are arranged around the cross flow fan 3.
With these, the air suction port 11 of the cross flow fan 3,
12 and an outlet 13 are formed. A front heat exchanger 4 is arranged between the air suction port 11 and the front opening 1, and a rear heat exchanger 5 is arranged between the air suction port 12 and the upper opening 2. , If the cross flow fan 3 is driven, the air will be stored indoors → front opening 1 → front heat exchanger 4 →
Air inlet 11 → Cross flow fan 3 → Outlet 13 →
Flow in the order of indoors and indoors → upper opening 2 → rear heat exchanger 5 → air inlet 12 → cross flow fan 3 → blowout 13 → indoors.

Embodiment of the present invention The air conditioner body shown in FIGS. 1, 2 and 3 has a ceiling plate which is attached to the upper end of a substantially vertical front plate in a substantially right angle direction, and a lower end of the front plate. Describes a body casing having a substantially curved rectangular cross section consisting of a bottom plate attached in a substantially curved direction at a large curve.

However, in the body casing of an actual air conditioner, the front plate is not limited to the vertical one, but it has a curve, and there are some cases where the upper end of the front plate is also a large curve. An extreme example is that the cross section is almost semicircular.

Further, the front opening 1 of the front plate and the upper opening 2 of the ceiling plate may be combined to form one opening. Especially, in the case of the main body casing whose cross section is almost semi-circular, the opening becomes one, the front opening 1 and the upper opening 2
The definition of is vague.

Further, as shown in FIGS. 1, 2 and 3, all of the air sucked from the front opening 1 of the front plate passes through the first (front) heat exchanger 4, and the It is apt to be illusion that all of the air drawn in through the upper opening 2 passes through the second (rear) heat exchanger 5. However, in reality, the above flow does not always occur due to the shape of the main body casing, the relative positional relationship of each opening with respect to each heat exchanger, and the gap (positional relationship) between each heat exchanger and the main body casing, First even for air sucked from the upper opening 2
Even though the air that has passed through the (front) heat exchanger and the air sucked in through the front opening 1 partially passes through the second (rear) heat exchanger 5. However, in any case, the effect of the present invention can be exhibited without change.

Therefore, even when the air conditioner A ₁ ′ is installed near the ceiling, the air flow smoothly flows into the air conditioner from the front as shown by the arrow W in FIG. The effective area of the vessel 5 can be increased and its performance can be sufficiently exerted (that is, there is no risk of occurrence of obstacles such as deterioration of the performance of the heat exchanger due to restriction of the air flow direction due to walls or the like).

That is, according to the first embodiment, regardless of the installation state of the air conditioner A ₁ ′, each of the heat exchangers 4 and 5 always has a large effective area with respect to the air flow. The heat exchange efficiency can be improved by arranging the above.

As a result, it is possible to obtain an air conditioner A ₁ ′ capable of achieving high performance and high integration of the heat exchanger.

The drain water generated in each heat exchanger 4, 5 is collected in the lower drain pan 7 and the upper drain pan 9.

Other embodiments based on the air conditioner A ₁ ′ will be briefly described below.

First, the air conditioner A according to the second embodiment.
_{In 2} ', as shown in FIG. 2, the front heat exchanger is provided with a notch at a predetermined position while leaving a part of the connecting portion, and the front lower heat exchanger _4a and the front upper heat exchanger _4b are connected to each other. It is bent at a predetermined angle around the connecting portion so as to form it.

Therefore, according to the second embodiment, since the heat exchanger has a larger effective area with respect to the flow of air, the heat exchange efficiency is improved and its performance and integration are improved. Can be further promoted.

Next, the air conditioner A according to the third embodiment
In ₃ ', adjacent at a predetermined angle so as the front heat exchanger 3 is disconnected at a predetermined position, and to form the front lower heat exchanger 4 _a and the front upper heat exchanger 4 _b arranged To be done.

Therefore, also in the third embodiment, similarly to the second embodiment, it is possible to further promote the high performance and high integration of the heat exchanger.

Next, the air conditioner A according to the fourth embodiment
_{In 4} ′, as shown in FIG. 4, tube plates 14 are provided on both sides of the front heat exchanger 4, and tube plates 15 are provided on both sides of the rear heat exchanger 5.
Is provided. Then, the respective tube plates 14 and 15 can be united by a screw or the like, and after the tube plates 14 and 15 are assembled, one piece is provided on each side of the front heat exchanger 4 and the rear heat exchanger 5. It is designed to form a wall surface. When this heat exchanger assembly is incorporated in the air conditioner body, the wall surface of this tube sheet forms a part of the side surface of the blower casing 6.

Therefore, according to the fourth embodiment, the casing structure can be simplified and the assembly workability can be improved accordingly.

The heat exchangers 4 (4 _a , 4 _b ) and 5 in the first to third embodiments are manufactured from one heat exchanger as follows, for example.

In other words, the fins of the heat exchanger as shown in FIG.
And the central connection 17 is cut to separate the front heat exchanger 4 and the rear heat exchanger 5 into the heat exchangers 4 and 5 in the first embodiment as shown in FIG. Can be done.

Further, as shown in FIG. 5 (b), partial cuts 16, 16 ', 18, 1 are made from the left and right of two predetermined positions.
8'is put in, the central connecting portion 17 is cut off, and the other central connecting portion 19 is cut while leaving a partial connecting portion 20 and bent at a predetermined angle. In the second embodiment as shown in FIG. The heat exchangers 4 _a , 4 _b and 5 can be used.
Further, as shown in FIG. 5 (c), some notches 16, 16 ', 18, 18' are made from the left and right of two predetermined positions to cut the central connecting portion 17 and the other central connecting portion 1
When 9 is also cut and separated and arranged so as to be adjacent to each other at a predetermined angle, the heat exchangers _4a , _4b and 5 in the third embodiment as shown in FIG. 3 can be obtained.

If the partial cuts 16 and 18, 16 'and 18' shown in FIGS. 5 (b) and 5 (c) are made to have the same shape, they can be manufactured by the same press die.

As shown in FIGS. 5 (b) and 5 (c), after making partial cuts 16, 16'18 and 18 ', as shown in FIG. By doing so, the lower front heat exchanger 4 _a in the second and third embodiments
The lower inclined cutting part 21 and the upper inclined cutting part 22 of the rear heat exchanger 5 can be provided.

Next, the air conditioner A according to the fifth embodiment
_{In 5} ′, as shown in FIGS. 1 to 4, an upper drain pan 9 for collecting drain water generated in this heat exchanger is provided below the rear heat exchanger 5, and a front edge of this upper drain pan 9 is extended upward. Then, it is brought into contact with the upper end of the front (upper) heat exchanger 4 (4 _b ). That is, the partition plate 10 and the upper drain pan 9 are integrally molded to shield the gap between the front (upper) heat exchanger 4 (4 _b ) and the rear heat exchanger 5. Therefore, according to the fifth embodiment, the drain water generated in the heat exchangers 4 (4 _a , 4 _b ) and 5 can be reliably collected in the drain pans 7 and 9 and the strength of the casing structure can be increased. I can.

Next, the air conditioner A according to the sixth embodiment
In ₆ ', the bottom drain pan 6 the drain water collected in the upper drain pan 9 for the rear heat exchanger 5 (a), the front lower heat exchanger 4 _a and the front upper heat exchanger 4 for _b 7
A concave portion 23 for guiding the heat exchanger is formed in the common support portion 24 of each heat exchanger _4a , _4b , 5.

The method of collecting drain water in this air conditioner A ₆ ′ will be described below.

Now, the drain water generated from the rear heat exchanger 5 is dripped into the upper drain pan 9. Then, this drain water is left and right recessed portions 2 formed in the common support portions 24, 24.
From the respective drain outlets 25, 25 provided in the recesses 3, 23,
It is dripped in 23 and is collected in the lower drain pan 7 through the flow path shown by the arrow in FIG. In this case, FIG.
As shown in (c), the recesses 23, 23 are formed in the heat exchangers 4 _a ,
Since the structure is closed when 4 _b and 5 are attached, there is a possibility that the drain water is discharged from the upper drain pan 9 and that the drain water vertically falling in the recesses 23 and 23 may be scattered to other parts. Without, it can be surely guided to the lower drain pan 7.

Therefore, according to the sixth embodiment, the recesses 23, 2 for draining drain water from the upper drain pan 9 are used.
Since 3 is integrally formed with the common support portions 24, 24 of the heat exchangers 4 _a , 4 _b , 5, there is no need for a connecting member for draining the upper drain pan 9.

Thus, the drain water from the upper drain pan 9 can be reliably guided to the lower drain pan 7 and recovered with a simple structure.

In the sixth embodiment, the recess 2 for drainage is used.
3, 23 and the drainage ports 25, 25 to the heat exchangers 4 _a , 4
_Although they are provided on both sides of the common support portions 24 and 24 of _b and 5, they may be provided only on one side of the common support portions 24 and 24 in actual use without any problem.

In the sixth embodiment, the heat exchanger in the third embodiment is illustrated, but in actual use, the heat exchanger in other embodiments will not cause any problems.

Although the first to sixth embodiments are applied to the indoor unit of the separate type air conditioner, they may be applied to the outdoor unit or the integrated air conditioner without any problem in actual use. There is no.

[0057]

EFFECTS OF THE INVENTION Since the air conditioner according to the present invention is configured as described above, even if the air conditioner is installed in the vicinity of the ceiling, the air flow smoothly flows into the inside of the air conditioner from the front. In particular, the performance of the second heat exchanger can be sufficiently exerted (that is, there is no fear of occurrence of a trouble such as a decrease in the performance of the heat exchanger due to the restriction of the air flow direction due to the wall or the like).

That is, regardless of the installation state of the air conditioner, both the first and second heat exchangers are arranged so that the effective area is always large with respect to the air flow, and their heat exchange efficiency is improved. Can be improved.

As a result, it is possible to obtain an air conditioner capable of achieving high performance and high integration of the heat exchanger.

Further, if either one of the first and second heat exchangers is bent or divided so that the effective area of the heat exchanger is further increased with respect to the flow of air, the heat exchange is performed. It is possible to improve efficiency and further promote higher performance and higher integration.

Furthermore, by integrally connecting the tube plates of the first and second heat exchangers on each side, the casing structure can be simplified and the assembly workability can be improved accordingly. Further, by providing a drain pan under the first and second heat exchangers and integrally molding a drain pan for the second heat exchanger and a partition plate that shields the gap between the two heat exchangers, The drain water generated in the exchanger can be reliably collected in each drain pan, and the strength of the casing structure can be increased.

Further, a recess for guiding the drain water collected in the drain pan for the second heat exchanger to the drain pan for the first heat exchanger is formed in the common support portion of both the heat exchangers. The connection member for draining the drain pan for the heat exchanger 2 is not required. This makes it possible to reliably guide the drain water from the upper drain pan to the lower drain pan for recovery with a simple structure.

[Brief description of drawings]

FIG. 1 is an air conditioner A according to a first embodiment of the present invention.
_The sectional side view which shows the internal structure of ₁ '.

FIG. 2 is an air conditioner A according to a second embodiment of the present invention.
_The sectional side view which shows the internal structure of ₂ '.

FIG. 3 is an air conditioner A according to a third embodiment of the present invention.
_The sectional side view which shows the internal structure of ₃ '.

FIG. 4 is an air conditioner A according to a fourth embodiment of the present invention.
FIG. ₄ is a side sectional view showing the internal structure of ₄ ′.

FIG. 5 is an explanatory view showing the shape of the heat exchanger during manufacturing (a).
~ (D).

FIG. 6 is a cross-sectional view (a) showing the structure around the drain pan.
(C).

FIG. 7 is a side sectional view showing the internal structure of a first example A ₁ of a conventional air conditioner.

FIG. 8 is a side sectional view showing the internal structure of a second example A ₂ of a conventional air conditioner.

FIG. 9 is a side sectional view showing the internal structure of a third example A ₃ of a conventional air conditioner.

[Explanation of symbols]

A ₁ ′ to A ₆ ′ ... Air conditioner 1 ... Front opening 2 ... Top opening 3 ... Cross flow fan (corresponding to fan) 4 ... Front heat exchanger (corresponding to first heat exchanger) 4 _a ... Lower front heat exchanger (corresponding to first heat exchanger) 4 _b Front upper heat exchanger (corresponding to first heat exchanger) 5 Rear heat exchanger (corresponding to second heat exchanger) 7 ... Lower drain pan 9 ... Upper drain pan 10 ... Partition plates 14, 15 ... Tube plate 23 ... Recessed portion 24 ... Common support portion

Claims (6)

[Claims] 1. An opening formed in a front surface portion and an upper surface portion on a front surface side of a main body, a fan for sucking air from the opening, and a fan among the openings mainly arranged in a flow of air from the front surface portion of the main body toward the fan. An air conditioner comprising a first heat exchanger provided and a second heat exchanger arranged in the flow of air mainly from the upper surface of the main body toward the fan in the opening, An air conditioner in which the second heat exchanger is arranged substantially parallel to the first heat exchanger. 2. The air conditioner according to claim 1, wherein one of the first heat exchanger and the second heat exchanger is provided with a notch at a predetermined position while leaving a connection part, and is bent at the connection part. Machine. 3. The air conditioner according to claim 1, wherein either one of the first and second heat exchangers is separated at a predetermined position and adjacently arranged at a predetermined angle. 4. The air conditioner according to claim 1, wherein the tube plates of the first and second heat exchangers are integrally connected to each side surface. 5. A drain pan is provided at a lower portion of each of the first and second heat exchangers, and the heat exchangers are shielded from each other so as to close an air passage in a gap between the heat exchangers. A partition plate is provided, and the drain pan for the second heat exchanger and the partition plate are integrally formed.
Air conditioner described. 6. A recess for guiding the drain water collected in the drain pan for the second heat exchanger to the drain pan for the first heat exchanger is formed in a common support portion of both heat exchangers. The air conditioner according to claim 1, 2, 3, 4 or 5.