JP4711567B2 - Air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner in which an indoor heat exchanger, an indoor fan, an outdoor heat exchanger, and an outdoor fan are integrally provided, and more particularly to an air conditioner having an improved bottom plate structure.
[0002]
[Prior art]
The air conditioner is integrally provided with an indoor heat exchanger, an indoor fan, an outdoor heat exchanger, and an outdoor fan, and includes an indoor side room in which the indoor heat exchanger and the indoor fan are arranged, an outdoor heat exchanger, and an outdoor fan. There is an integrated air conditioner in which an outdoor room arranged is defined by a partition plate.
[0003]
A drain pan on which the indoor heat exchanger is placed is installed in the indoor side chamber. The drain pan is disposed on the bottom plate to which the partition plate is fixed in an upright state. An outdoor heat exchanger is placed on the bottom plate.
[0004]
In such an air conditioner, drain water generated by an indoor heat exchanger that functions as an evaporator during cooling operation flows through a drain pan to a bottom plate and is stored. This drain water is scraped up by the rotation of the slinger ring of the outdoor fan and scattered to the outdoor heat exchanger functioning as a condenser, thereby improving the condensation capacity of the condenser.
[0005]
The bottom plate is provided with a dam member for storing drain water as described above. Also, in this weir member, drain water generated by an outdoor heat exchanger functioning as an evaporator during heating operation flows into the inside of the weir member, and the drain water that has entered freezes and collides with slinger ring. There is also a function to prevent this.
[0006]
[Problems to be solved by the invention]
The dam member having the above-described function is conventionally manufactured as a separate part from the bottom plate, fixed to the bottom plate by spot welding or the like, and waterproofed between them. Therefore, the manufacturing cost of the bottom plate increases.
[0007]
An object of the present invention is made in consideration of the above-described circumstances, and is to provide an air conditioner that can reduce the manufacturing cost of a bottom plate.
[0008]
[Means for Solving the Problems]
According to the first aspect of the present invention, an indoor heat exchanger, an indoor fan, an outdoor heat exchanger, and an outdoor fan are provided integrally, an indoor side chamber in which the indoor heat exchanger and the indoor fan are disposed, and the outdoor heat In the air conditioner in which the exchanger and the outdoor room in which the outdoor fan is disposed are partitioned by a partition plate, the outdoor heat exchanger is disposed on a bottom plate on which the partition plate is installed. In the vicinity of the outdoor heat exchanger, a dam member for blocking the flow of drain water is integrally formed, and the dam member has a central portion extending between the outdoor heat exchanger and the outdoor fan in the width direction of the bottom plate. And both ends are formed in a U shape extending in the direction of the indoor side chamber, and the outdoor heat exchanger is disposed in an outer region of the U-shaped weir member in the bottom plate, and the drain water is drained to the outer region. Drainage The provided the drain water produced by the outdoor heat exchanger functioning as an evaporator during heating operation is characterized in that flowed down to the outer region.
[0009]
The invention according to claim 2 is characterized in that, in the invention according to claim 1, the bottom plate is made of a highly malleable drawing material, and the weir member is integrally formed by drawing. is there.
[0011]
According to a third aspect of the present invention, in the first or second aspect of the present invention, the dam member is configured to contact a fan casing that houses an outdoor fan.
[0012]
The invention described in claim 1 has the following action.
[0013]
Since the bottom plate on which the outdoor heat exchanger is arranged is integrally formed with a weir member that blocks the flow of drain water in the vicinity of the outdoor heat exchanger, the weir member is separated from the bottom plate. The manufacturing cost of the bottom plate can be reduced as compared with the case where the separate parts are fixed to the bottom plate and a sealing process is performed between them. In addition, since the central portion of the weir member is formed in a U shape extending in the width direction of the bottom plate, when the outdoor heat exchanger functions as a condenser, drain water is stored inside the weir member, and this drain Water is scattered to the condenser by rotation of the outdoor fan's slinger ring to improve the condensation capacity, and when the outdoor heat exchanger functions as an evaporator, the drain water generated by this evaporator is a weir member It is possible to prevent the drain water that has flowed into the inside of the water from freezing and colliding with the slinger ring.
[0014]
The invention according to claim 2 has the following effects.
[0015]
Since the dam member is integrally formed by drawing, the presence of the dam member can improve the strength of the bottom plate.
[0018]
The invention according to claim 3 has the following effects.
[0019]
Since the fan casing that stores the outdoor fan comes into contact with the dam member of the bottom plate, the fan casing can be supported on the bottom plate by the dam member, and the support of the fan casing can be ensured.
[0020]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0021]
FIG. 1 is an external perspective view showing an embodiment of an air conditioner according to the present invention.
[0022]
FIG. 2 is an exploded perspective view showing the air conditioner of FIG. 1 with the cabinet omitted.
[0023]
The air conditioner 10 shown in FIGS. 1 and 2 is installed through a wall (not shown) of a building, and includes an indoor heat exchanger 11, a cross flow fan 12 (FIG. 3) as an indoor fan, and an outdoor heat exchanger. 13 is an integrated air conditioner in which a propeller fan 14 as an outdoor fan, a compressor 15 and the like are integrally provided.
[0024]
The indoor heat exchanger 11, the cross flow fan 12, the outdoor heat exchanger 13, the propeller fan 14, the compressor 15, and the like described above are arranged on the bottom plate 16 to constitute an air conditioner body 17, and this air conditioner body The front side of 17 (that is, the arrangement side of the indoor heat exchanger 11 and the cross flow fan 12) is covered with the front panel 18, and the rear side (that is, the arrangement side of the outdoor heat exchanger 13, the propeller fan 14 and the compressor 15). Is covered with a cabinet 19. A front panel 18 is positioned facing the interior of the building. The cabinet 19 is installed through the wall of the building and is formed in a square tube (sleeve) shape.
[0025]
As shown in FIGS. 2 to 4, in the air conditioner body 17, a partition plate 20 is erected at a substantially central position in the front-rear direction of the bottom plate 16, and the partition plate 20 extends over the entire width direction of the bottom plate 16. Extended. With this partition plate 20, the air conditioner body 17 includes an indoor side chamber 21 in which the indoor heat exchanger 11 and the cross flow fan 12 are arranged, an outdoor heat exchanger 13, a propeller fan 14, a compressor 15, and the like. The outdoor compartment 22 is partitioned. Therefore, the front panel 18 disposed in front of the air conditioner 10 covers the indoor side chamber 21, and the cabinet 19 disposed on the rear side of the air conditioner 10 defines the periphery of the outdoor room 22. become.
[0026]
The outdoor heat exchanger 13, the outdoor fan casing 23, the support legs 24 and the compressor 15 are installed on the outdoor plate 22 side of the bottom plate 16.
[0027]
The compressor 15 is sequentially connected to the outdoor heat exchanger 13, a decompression device (not shown), and the indoor heat exchanger 11 using a refrigerant pipe (not shown), thereby constituting a refrigeration cycle. During the cooling operation of the air conditioner 10, the outdoor heat exchanger 13 functions as a condenser, and the indoor heat exchanger 11 functions as an evaporator. Further, during the heating operation of the air conditioner 10, the outdoor heat exchanger 13 functions as an evaporator and the indoor heat exchanger 11 functions as a condenser.
[0028]
The outdoor fan casing 23 is connected to the outdoor heat exchanger 13 and a propeller fan 14 is disposed therein. The propeller fan 14 is rotationally driven by an outdoor drive motor 25, and the outdoor drive motor 25 is supported by the support leg 24. The outdoor chamber 22 is partitioned by an outdoor fan casing 23 into an outdoor discharge chamber 26 inside the outdoor fan casing 23 and an outdoor suction chamber 27 outside the outdoor fan casing 23.
[0029]
As the propeller fan 14 rotates, the outside air is sucked into the outdoor suction chamber 27 from the outdoor suction ports 28 on both sides of the outdoor heat exchanger 13 as shown by an arrow A in FIG. 29 is discharged into the outdoor discharge chamber 26, passes through the outdoor heat exchanger 13, and is discharged out of the outdoor discharge port 30. The outdoor heat exchanger 13 releases heat to the outside air during the cooling operation of the air conditioner 10, and takes in heat from the outside air during the heating operation.
[0030]
Further, as shown in FIG. 3, the propeller fan 14 has a slinger ring 31 that connects these blades to the outer periphery of each blade. During the cooling operation of the air conditioner 10, drain water is generated in the indoor heat exchanger 11 that functions as an evaporator. The drain water is collected in a drain pan 33 (to be described later) and then stored in the storage portion 32 of the bottom plate 16 through a drain opening 44 formed in the lower end portion of the partition plate 20. The slinger ring 31 scoops up the drain water accumulated in the storage section 32 when the propeller fan 14 rotates, and at this time, the drain water is scattered to the outdoor heat exchanger 13 functioning as a condenser. Thereby, the condensation capability of the outdoor heat exchanger 13 is improved.
[0031]
On the other hand, a drain pan 33 is installed on the indoor side chamber 21 side of the bottom plate 16, and the indoor heat exchanger 11 is placed on the drain pan 33. The partition plate 20 is formed in a box shape having an opening on the indoor side chamber 21 side, and an indoor fan casing 34 is disposed in the partition plate 20.
[0032]
The indoor fan casing 34 is curved from a first top surface 41 (described later) of the partition plate 20 to reach the drain pan 33, and an electric heater is adjacent to the indoor heat exchanger 11 at the lower end of the indoor fan casing 34. 55 is installed. Further, the cross flow fan 12 is disposed inside the curved indoor fan casing 34. Therefore, the indoor fan casing 34 is disposed between the partition plate 20 and the cross flow fan 12.
[0033]
The cross flow fan 12 is rotationally driven by the indoor drive motor 35 shown in FIG. 4, and the cross flow fan 12 and the indoor drive motor 35 are supported by the partition plate 20. As shown in FIG. 3, the indoor fan casing 34 forms an indoor circulation chamber 36 and an outside air introduction chamber 37 on the indoor side chamber 21 side. Further, as shown in FIG. 4, an electrical room 46 that houses an electrical box 45 is formed in the indoor side chamber 21.
[0034]
As shown in FIG. 3, the indoor heat exchanger 11, the cross flow fan 12, and the electric heater 55 are disposed in the indoor circulation chamber 36. Further, an air filter 38 and a stabilizer 39 are disposed in the indoor circulation chamber 36. The air filter 38 is installed between the suction grill 40 formed on the front panel 18 and the indoor heat exchanger 11. Further, the stabilizer 39 is installed above the indoor heat exchanger 11 and is provided to bulge in the direction of the cross flow fan 12. Due to the stabilizer 39, the air in the indoor circulation chamber 36 is satisfactorily sucked into the cross flow fan 12 and discharged from the cross flow fan 12. On the front panel 18, a blow-out grill 43 that guides the discharged air into the room of the building is formed above the suction grill 40.
[0035]
The rotation of the cross flow fan 12 causes the indoor air of the building to be taken into the indoor circulation chamber 36 of the indoor side chamber 21 from the suction grill 40 as shown by an arrow B in FIG. The air is sucked into the cross flow fan 12 through the heat exchanger 11 and the electric heater 55 in order, and is discharged by the cross flow fan 12 and blown into the room from the blow grill 43. The indoor heat exchanger 11 cools the indoor air taken into the indoor circulation chamber 36 during the cooling operation of the air conditioner 10 to cool the indoor air, and also heats the indoor air during the heating operation to Heat up.
[0036]
The outside air introduction chamber 37 is a component that constitutes a ventilation device 47 that takes in outside air into the indoor circulation chamber 36 of the indoor side chamber 21 through the outdoor side chamber 22 and can supply fresh air to the room interior of the building. . The ventilator 47 includes a ventilating opening 48, a ventilating shutter 49, and a ventilating vent 50A in addition to the outside air introduction chamber 37.
[0037]
In the box-shaped partition plate 20, a second top surface 42 is formed continuously with the first top surface 41 at a position lower than the first top surface 41. The second top surface 42 is disposed inside the cabinet 19 that defines the periphery of the outdoor chamber 22. Further, as shown in FIGS. 4 and 5, a plurality of the ventilation openings 48 are arranged in parallel at the same pitch in the longitudinal direction of the second top surface 42 on the second top surface 42.
[0038]
On the second top surface 42, the ventilation shutter 49 having a large number of fine holes 51 is placed. These fine holes 51 are grouped into groups, and the plurality of fine hole groups 51 </ b> A are arranged at the same pitch in the longitudinal direction of the ventilation shutter 49. The pitch of the narrow hole group 51 </ b> A is set to be approximately the same as the pitch of the ventilation openings 48 of the second top surface 42.
[0039]
Further, the ventilation shutter 49 is formed with elongated holes 52 extending in the longitudinal direction of the ventilation shutter 49 at both ends. The ventilation shutter 49 is slidably attached to the second top surface 42 of the partition plate 20 in the longitudinal direction of the second top surface 42 and the ventilation shutter 49 by screws 53 passing through the long holes 52.
[0040]
As shown in FIG. 6, by sliding the ventilation shutter 49, the ventilation opening 48 is fully opened at a position where the narrow hole group 51 </ b> A of the ventilation shutter 49 matches the ventilation opening 48, and the narrow hole group 51 </ b> A matches the ventilation opening 48. First, the ventilation opening 48 is fully closed at a position where the ventilation shutter 49 closes the ventilation opening 48. Further, the opening degree of the ventilation opening 48 is adjusted to an arbitrary position such as half open and 2/3 open according to the slide position of the ventilation shutter 49. By the opening operation of the ventilation opening 48, as shown by an arrow C in FIG. 3, the outside air that has flowed into the outdoor chamber 22 is guided to the cabinet 19, and the narrow hole 51 and the second top surface 42 of the ventilation shutter 49 are guided. The air is introduced into the outside air introduction chamber 37 through the ventilation opening 48.
[0041]
Here, the ventilation opening 48 is configured to be inclined downward toward the outdoor side chamber 22 side. Thereby, the flow area of the external air between the 2nd top surface 42 and the cabinet 19 is expanded compared with the case where the 2nd top surface 42 is horizontal. Further, the narrow hole 51 of the ventilation shutter 49 shown in FIG. 6 is formed to have a remarkably small hole diameter as compared with the opening area of the ventilation opening 48. Thereby, this fine hole 51 functions as an air filter and is set to a hole diameter that prevents, for example, insects and the like from entering.
[0042]
As shown in FIG. 5, the ventilation / ventilation portion 50 </ b> A has a plurality of ventilation holes 50 arranged in parallel at the lower portion of the indoor fan casing 34 and formed in the shape of an armored door. A plurality of ventilation ventilation portions 50 </ b> A are provided in the longitudinal direction of the indoor fan casing 34 except for the position corresponding to the drain opening 44 of the partition plate 20.
[0043]
As shown in FIG. 3, when the cross flow fan 12 rotates, the pressure below the cross flow fan 12 in the indoor circulation chamber 36, that is, in the vicinity of the ventilation vent 50 </ b> A is negative. Therefore, as shown by an arrow C in FIG. 3, the outside air introduced into the outside air introduction chamber 37 through the narrow hole 51 of the ventilation shutter 49 and the ventilation opening 48 of the second top surface 42 is curved indoor fan casing. It flows downward through the outside of 34 and is led into the indoor circulation chamber 36 through the vents 50 of the plurality of ventilation vents 50A. The outside air introduced into the indoor circulation chamber 36 is mixed with the indoor air conditioned by the indoor heat exchanger 11, and as shown by an arrow B in FIG. It is introduced into the room and fresh air is supplied into the room.
[0044]
Further, as shown in FIG. 5, an operation lever 54 is integrally coupled to one end of the ventilation shutter 49. As shown in FIGS. 2 and 6, the operation lever 54 is disposed so as to extend toward the indoor heat exchanger 11 and can be operated when the front panel 18 is removed. By operating the operation lever 54 in the horizontal direction, the ventilation shutter 49 is directly slid without a wire or the like, and the opening of the ventilation opening 48 is fully opened or closed, and the ventilation opening is opened like a half-opening operation. The opening degree of 48 can be arbitrarily adjusted.
[0045]
By the way, as shown in FIG. 3, the outdoor heat exchanger 13 is placed in the outdoor side chamber 22 on the bottom plate 16 on which the partition plate 20 is erected. The bottom plate 16 is made of a drawn material that is highly malleable and easily stretched. As shown in FIG. 8, a dam member 56 for blocking the drain water flow is integrally formed near the outdoor heat exchanger 13 of the bottom plate 16 by drawing.
[0046]
As shown in FIG. 7, the dam member 56 is formed in a U shape in which the center portion 56 </ b> A extends in the width W direction of the bottom plate 16 and both end portions 56 </ b> B extend in the direction of the indoor side chamber 21. The dam member 56 forms the reservoir 32 capable of storing drain water inside the dam member 56.
[0047]
As shown in FIG. 3, during the cooling operation of the air conditioner 10, the indoor heat exchanger 11 functions as an evaporator, and the outdoor heat exchanger 13 functions as a condenser. The drain water generated in the indoor heat exchanger 11 flows down to the outdoor side chamber 22 side of the bottom plate 16 through the drain pan 33 and the drain opening 44 of the partition plate 20 and is stored in the storage portion 32. Excess drain water overflowing from the reservoir 32 is discharged from a drain drain 57 (FIG. 7). As described above, the drain water stored in the storage unit 32 is scraped up and scattered by the rotation of the slinger ring 31 in the propeller fan 14 and adheres to the outdoor heat exchanger 13. The drain water adhering to the outdoor heat exchanger 13 evaporates, and the condensation capacity of the outdoor heat exchanger 13 is improved.
[0048]
Further, during the heating operation of the air conditioner 10, the indoor heat exchanger 11 functions as a condenser, and the outdoor heat exchanger 13 functions as an evaporator. As shown in FIG. 8, the drain water generated in the outdoor heat exchanger 13 is stored in the outer region 58 of the weir member 56 on which the outdoor heat exchanger 13 is placed on the bottom plate 16, The dam member 56 prevents the storage portion 32 that is on the inside from flowing into the storage portion 32. When the drain water generated by the outdoor heat exchanger 13 flows into the reservoir 32, the drain water freezes, and the slinger ring 31 of the propeller fan 14 collides with the frozen drain water to generate noise. There is a fear. The dam member 56 prevents the drain water generated in the outdoor heat exchanger 13 from flowing into the reservoir 32 in order to prevent the generation of this abnormal noise.
[0049]
As shown in FIGS. 3 and 6, the outdoor fan casing 23 is disposed in contact with the dam member 56, particularly both end portions 56 </ b> B of the dam member 56. Thereby, the outdoor fan casing 23 is favorably supported by the bottom plate 16 via the weir member 56.
[0050]
Therefore, according to the above embodiment, the following effects (1) to (4) are obtained.
[0051]
(1) Since the bottom plate 16 on which the outdoor heat exchanger 13 is disposed is integrally formed with a weir member 56 for blocking the flow of drain water in the vicinity of the outdoor heat exchanger 13. Can be manufactured as a separate part from the bottom plate 16, and the separate part can be fixed to the bottom plate 16, and the sealing process can be performed between them.
[0052]
(2) Since the weir member 56 is integrally formed by drawing, the presence of the weir member 56 can improve the strength of the bottom plate 16.
[0053]
(3) Since the central portion 56A of the weir member 56 is formed in a U-shape extending in the width W direction of the bottom plate 16, when the outdoor heat exchanger 13 functions as a condenser, a storage inside the weir member 56 is provided. When the drain water is stored in the section 32 and the drain water is scattered to the condenser by the rotation of the slinger ring 31 of the propeller fan 14 to improve the condensing capacity, and when the outdoor heat exchanger 13 functions as an evaporator. It is possible to prevent the drain water generated by this evaporator from flowing into the reservoir 32 inside the weir member 56 and freezing the drain water that has flown into the slinger ring 31.
[0054]
(4) Since the outdoor fan casing 23 that houses the propeller fan 14 contacts the dam member 56 of the bottom plate 16, the outdoor fan casing 23 can be supported on the bottom plate 16 by the dam member 56, and the bottom plate 16 is supported. Can be assured.
[0055]
As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to this.
[0056]
【The invention's effect】
As described above, according to the air conditioner of the present invention, the manufacturing cost of the bottom plate can be reduced.
[Brief description of the drawings]
FIG. 1 is an external perspective view showing an embodiment of an air conditioner according to the present invention.
2 is an exploded perspective view showing the air conditioner of FIG. 1 with a cabinet omitted. FIG.
FIG. 3 is a longitudinal sectional view of the air conditioner of FIG.
4 is a plan view showing the air conditioner of FIG. 1 with a cabinet omitted. FIG.
5 is an exploded perspective view illustrating the partition plate, the cross flow fan, the ventilation device, and the like of FIG. 2;
6 is a plan view corresponding to FIG. 4 showing a state in which the ventilation device of FIG. 5 is assembled.
7 is an exploded perspective view of the bottom plate, drain pan, and partition plate of FIG. 2;
8 is a perspective view showing an assembled state of the bottom plate, drain pan, indoor heat exchanger, and outdoor heat exchanger of FIG. 2;
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Air conditioning apparatus 11 Indoor heat exchanger 12 Cross flow fan (indoor fan)
13 Outdoor heat exchanger 14 Propeller fan (outdoor fan)
16 Bottom plate 19 Cabinet 20 Partition plate 21 Indoor side chamber 22 Outdoor side chamber 23 Outdoor fan casing 31 Slinger ring 56 Weir member 56A Center portion 56B of weir member End portion 58 of weir member

Claims (3)

An indoor heat exchanger, an indoor fan, an outdoor heat exchanger, and an outdoor fan are integrally provided, and an indoor side chamber in which the indoor heat exchanger and the indoor fan are disposed, and the outdoor heat exchanger and the outdoor fan are disposed. In the air conditioner in which the outdoor room is partitioned by a partition plate,
The outdoor heat exchanger is disposed on a bottom plate on which the partition plate is installed, and a dam member for blocking the flow of drain water is integrally formed on the bottom plate in the vicinity of the outdoor heat exchanger, and the dam member The central portion is formed in a U shape extending between the outdoor heat exchanger and the outdoor fan in the width direction of the bottom plate and both end portions extend in the indoor side chamber direction. The drain water generated by the outdoor heat exchanger that functions as an evaporator during heating operation is provided with the outdoor heat exchanger disposed in the outer region and a drain drain port for draining the drain water in the outer region. An air conditioner characterized in that it flows down to the outer region .   The air conditioner according to claim 1, wherein the bottom plate is made of a drawn material having high malleability, and the weir member is integrally formed by drawing. The air conditioner according to claim 1 or 2 , wherein the dam member is configured to contact a fan casing that houses an outdoor fan.

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