JP4462773B2 - Air conditioner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an air conditioner including a vaporizing humidifier.
[0002]
[Prior art]
In general, there is known a wall-mounted air conditioner in which a heat exchanger divided into a plurality of heat exchange units is arranged inside an exterior body, and a cross flow fan is arranged inside the heat exchanger. In this type of air conditioner, in order to suppress indoor drying, as in the invention described in Japanese Patent Application Laid-Open No. 9-26152, during the heating operation, hot water circulating between the hot water heat exchanger and the heat source machine is used. Some of them are dripped onto the surface of the hot water heat exchanger to evaporate spontaneously and humidify the room.
[0003]
[Problems to be solved by the invention]
However, in the air conditioning apparatus described in the above publication, there is a case where the chalk content in hot water evaporated on the surface of the hot water heat exchanger becomes white powder and adheres to the surface of the hot water heat exchanger. For this reason, the heat exchange efficiency of a warm water heat exchanger falls, and there exists a possibility that a warm water heat exchanger may become short life. Moreover, it is difficult to ensure a sufficient amount of humidification by the method of evaporating on the surface of the hot water heat exchanger. For this reason, a vaporizing humidifier is inserted and arranged between the heat exchange parts, and there are those that humidify with air heated by the heat exchanger, but the heat exchanger divided into a plurality of heat exchange parts and the vaporization humidification It takes a lot of time to assemble the container inside the indoor unit. Moreover, the humidified air may leak out from the gaps in the heat exchanger.
[0004]
The object of the present invention has been made in consideration of the above-described circumstances, and facilitates the assembly operation of the heat exchanger and the vaporizing humidifier to the indoor unit, and the secondary side of the heat exchanger is humidified. An object of the present invention is to provide an air conditioner in which air leakage is prevented and a vaporizing humidifier can be easily attached and detached.
[0005]
[Means for Solving the Problems]
The invention according to claim 1 is a gap in which a heat exchanger divided into a plurality of heat exchange parts is arranged inside the exterior body, and a vaporizing humidifier is inserted between the heat exchange parts constituting the heat exchanger. The vaporizing humidifier is inserted and disposed in the gap, and the heat exchange parts constituting the heat exchanger are fixed to each other by a fixed plate at a predetermined angle, and the mounting part of the fixed plate is the heat exchange part The vaporizing humidifier is fixed to the attachment portion with a screw at the end portion .
[0006]
The invention according to claim 2 is a gap in which a heat exchanger divided into a plurality of heat exchange parts is arranged inside the exterior body, and a vaporizing humidifier is inserted between the heat exchange parts constituting the heat exchanger. The vaporizing humidifier is inserted and disposed in the gap, the heat exchange parts constituting the heat exchanger are fixed to each other by a fixed plate at a predetermined angle, and the vaporizing humidifier is attached to the fixed plate. The fixing plate is fixed with a screw, and the mounting portion of the fixing plate extends to an end portion of the heat exchanging portion, and the vaporizing humidifier is fixed to the mounting portion with the screw at this end portion.
[0008]
In these inventions, the heat exchanger and the vaporizing humidifier are attached to the fixing plate and fixed to be integrated, so that the heat exchanger becomes strong and the assembling work to the indoor unit becomes easy. In addition, by fixing the vaporizing humidifier to the fixing plate with a screw and closing the gap between the heat exchange parts, leakage of the humidified air on the secondary side of the heat exchanger is prevented, and the vaporizing type can be achieved by attaching and detaching the screw. The humidifier becomes removable.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0010]
FIG. 1 is a circuit diagram showing an embodiment of an air conditioner according to the present invention.
[0011]
As shown in FIG. 1, the air conditioner 10 includes an outdoor unit 11, an indoor unit 12, and a hot water supply unit 13. An outdoor refrigerant pipe 14 of the outdoor unit 11 and an indoor refrigerant pipe 15 of the indoor unit 12 are They are connected via connecting pipes 16 and 17.
[0012]
The outdoor unit 11 is disposed outside, and a compressor 18 is disposed in the outdoor refrigerant pipe 14. An accumulator 19 and a muffler 20 are sequentially arranged from the compressor 18 side on the suction side of the compressor 18 in the outdoor refrigerant pipe 14. The outdoor heat exchanger 21 and the electric expansion valve 22 are sequentially arranged from the compressor 18 side on the discharge side of the compressor 18 in the outdoor refrigerant pipe 14.
[0013]
An outdoor fan (not shown) that blows air toward the outdoor heat exchanger 21 is disposed adjacent to the outdoor heat exchanger 21.
[0014]
The indoor unit 12 is installed indoors, and an indoor refrigerant heat exchanger 23 is disposed in the indoor refrigerant pipe 15 and an indoor hot water heat exchanger 24 is provided. The indoor refrigerant heat exchanger 23 and the indoor hot water heat exchanger 24 constitute an indoor heat exchanger 25. In the indoor unit 12, a cross flow fan 26 that blows indoor air to the indoor heat exchanger 25 is disposed near the indoor heat exchanger 25 (see FIG. 2).
[0015]
The hot water supply unit 13 has a heat source unit 27, which heats the water supplied from the heat source unit water supply pipe 28 to produce hot water. This hot water can be discharged from a faucet (not shown) and can be circulated between the indoor hot water heat exchanger 24 and the heat source unit 27 of the indoor unit 12.
[0016]
In other words, the heat source unit 27 and the indoor hot water heat exchanger 24 include a warm water return pipe 29 that sends hot water from the heat source unit 27 to the indoor hot water heat exchanger 24, and a hot water return that returns the hot water from the indoor hot water heat exchanger 24 to the heat source unit 27. The pipe 30 is connected. A flow rate variable valve 31 for adjusting the flow rate of the hot water flowing in the warm water going pipe 29 is disposed in the warm water going pipe 29. When hot water is supplied from the heat source unit 27 to the indoor hot water heat exchanger 24, the indoor air passing through the indoor hot water heat exchanger 24 is heated by heat exchange.
[0017]
When a cooling operation is selected and instructed by a remote controller or the like (not shown), the control device (not shown) closes the flow rate variable valve 31, and closes the compressor 18, the outdoor fan, and the cross flow of the outdoor unit 11. The fan 26 is activated. Thereby, the indoor refrigerant heat exchanger 23 of the indoor unit 12 functions as an evaporator, and the indoor refrigerant heat exchanger 23 cools the indoor air guided into the indoor unit 12 to cool the room.
[0018]
When a heating operation is selected and commanded by a remote controller or the like, the compressor 18, the outdoor fan and the cross flow fan 26 of the outdoor unit 11 are stopped, and the flow variable valve 31 is operated to open, The hot water from the heat source device 27 is circulated between the indoor hot water heat exchanger 24. The indoor hot water heat exchanger 24 heats the indoor air guided into the indoor unit 12 by the cross flow fan 26 to heat the room.
[0019]
Here, in the above-described cooling operation or heating operation, the control device is configured so that the room temperature detected by the room temperature sensor 32 installed in the indoor unit 12 substantially matches the set temperature set by the remote controller or the like. The cooling operation or heating operation is controlled.
[0020]
The indoor unit 12 is attached to the wall of the room. As shown in FIG. 2, the indoor unit 12 mainly covers the rear side with a rear exterior body 35 and mainly covers the front side with a front exterior body 36. The rear exterior body 35 and the front exterior body 36 constitute an exterior body, and the indoor refrigerant heat exchanger 23, the indoor hot water heat exchanger 24, the cross flow fan 26, and the like are accommodated in a space surrounded by the exterior body. Is done.
[0021]
Air intake ports 37A, 37B, and 37C are formed in the front exterior body 36, and the front exterior body 36 is configured to be attachable to and detachable from the rear exterior body 35. Further, an air outlet 38 is formed between the rear exterior body 35 and the front exterior body 36.
[0022]
The indoor refrigerant heat exchanger 23 is divided into three heat exchange units 23A, 23B, and 23C. A first heat exchanging portion 23A is disposed in the front surface side space A formed inside the exterior body, and the second and third heat exchanging portions 23B and 23C are arranged in a C shape in the drawing in the upper surface side space B. Is arranged, and the indoor hot water heat exchanger 24 is arranged on the secondary side of the third heat exchanging portion 23C. A cross flow fan 26 is disposed inside the heat exchangers 23 and 24.
[0023]
The drains of the first heat exchange unit 23A and the second heat exchange unit 23B are received by the front drain receiver 41, and the drains of the third heat exchange unit 23C and the indoor warm water heat exchanger 24 are received by the rear drain receiver 43.
[0024]
In the present embodiment, a gap is formed between the second heat exchanging portion 23 </ b> B and the indoor hot water heat exchanger 24, which are arranged in a square shape in FIG. 2, and the gap is sucked by the cross flow fan 26. A vaporizing humidifier 45 is inserted and disposed along the air flow direction. As shown in FIG. 8, the vaporizing humidifier 45 includes a case 46 that extends to the full width of the second heat exchange portion 23 </ b> B, and a humidifying element 47 that is detachably inserted into the case 46. Composed. A fixed plate 49 is disposed on one end side 101 of the indoor refrigerant heat exchanger 23 where the second heat exchanging portion 23B and the indoor hot water heat exchanger 24 are joined, and the indoor refrigerant heat exchanger 23 and the indoor hot water heat exchanger 24 are connected to each other. A fixed plate 51 is arranged on the other end side 102.
[0025]
As shown in FIGS. 5, 6, and 7, the fixing plate 49 includes a mounting portion 71, claw portions 72, 73, 74, 75, an angle regulating portion 76, a falling portion 77, and an extending portion 78. And is configured. Claw portions 74 and 75 are connected to one side 76 </ b> A of the angle regulating portion 76. A falling portion 77 having a falling width W is connected to the other side 76B of the angle restricting portion 76, and claw portions 72 and 73 are connected to a leading edge 77A of the falling portion 77. One side 76A of the angle restricting portion 76 and the other side 76B are formed with an angle E. The attachment portion 71 is connected to an extension portion 78 extending from the falling portion 77 with the same width W as the attachment portion 71 and is formed to extend to the end portion of the upper edge of the indoor hot water heat exchanger 24. The screwing operation of the mounting portion 71 to be performed becomes easy. The attaching portion 71 is provided with a screw hole 71A, and the claw portions 72 and 73 of the fixing plate 49 are provided with screw holes 72A and 73A, respectively.
[0026]
As shown in FIG. 4, the second heat exchanging portion 23 </ b> B inserts the claw portions 74 and 75 of the fixing plate 49 inside the tube plate 33 of the second heat exchanging portion 23 </ b> B, so that the angle restricting portion 76 of the fixing plate 49. Connected to The tube plate 80 of the indoor hot water heat exchanger 24 is provided with screw holes 80A and 80B, and the claw portions 72 and 73 of the fixed plate 49 are arranged so as to overlap the tube plate 80 of the indoor hot water heat exchanger 24. Thus, the screw holes 80A and 80B of the tube plate 80 and the screw holes 72A and 73A of the claw portions 72 and 73 of the fixing plate 49 are aligned, and the indoor hot water heat exchanger 24 is fixed to the fixing plate by the screws 55A and 55B (FIG. 8). 49 is fixed. Therefore, the angle between the second heat exchange unit 23 </ b> B and the indoor warm water heat exchanger 24 is regulated by the angle E of the angle regulating unit 76 of the fixed plate 49. Since the fixed plate 49 has the falling portion 77, the falling portion 77 contacts the indoor hot water heat exchanger 24 with the falling width W, and thus the indoor hot water heat exchanger 24 is firmly fixed to the fixed plate 49. .
[0027]
The fixing plate 51 is provided with a plurality of holes (not shown) through which a U-bend (not shown) passes, and a screw hole 51B is provided above the fixing plate 51. The fixed plate 51 is arranged so that the U-bend between the indoor refrigerant heat exchanger 23 and the indoor hot water heat exchanger 24 is straddled, and the indoor refrigerant heat exchanger 23 and the indoor hot water heat exchanger 24 are fixed to the fixed plate 51. The Therefore, the heat exchangers 23A, 23B, 23C of the indoor refrigerant heat exchanger 23 divided into a plurality of parts and the indoor hot water heat exchanger 24 are firmly fixed by the fixing plate 51.
[0028]
The case 46 includes flanges 52 and 53 that are locked to the upper edges of the second replacement portion 23B and the indoor warm water heat exchanger 24. As shown in FIG. 53B is provided. The flanges 52 and 53 are made of, for example, a soft resin. The gap between the second heat exchanging portion 23B and the indoor hot water heat exchanger 24 is sealed by the flanges 52 and 53. Further, the screw holes 53A and 53B on both sides of the flange 53, the screw hole 71A of the mounting portion 71 of the fixing plate 49, and the screw hole 51B of the fixing plate 51 are aligned and fixed by screws 54A and 54B. Therefore, there is no air leakage from the gap between the second heat exchanging portion 23B and the indoor hot water heat exchanger 24, and the vaporizing humidifier 45 is attached and fixed to the fixing plates 49 and 51.
[0029]
As shown in FIGS. 2 and 3, the case 46 is formed with a dome-shaped head portion 46A, and a water spray pipe 46B is disposed in the dome-shaped head portion 46A. As shown in FIG. 5, the watering pipe 46 </ b> B is connected to a humidified water supply pipe 40 (FIG. 1) that leads a part of the water supplied to the heat source unit 27 via a pipe 56. Is connected to a thermal valve 44.
[0030]
The humidified water supply pipe 40 is in contact with at least one of a hot water return pipe 29 that sends hot water from the heat source unit 27 to the hot water heat exchanger 24 and a hot water return pipe 30 that returns hot water from the hot water heat exchanger 24 to the heat source unit 27. It is desirable to be arranged.
[0031]
The hot water from the sprinkling pipe 46B collides with the dome-shaped inner wall of the dome-shaped head portion 46A, then flows out along the dome shape, and is dropped onto the humidifying element 47 arranged in an inclined manner. Thereby, the reliable dripping to the humidification element 47 is ensured. The hot water dropped here humidifies the warm air passing through the heat exchangers 23 and 24, and the residual water is received by the residual water receiving portion 46C. The residual water collected in the residual water receiving part 46C is collected in the back drain receiver 43 of the third heat exchange part 23C through the residual water channel 46D. As is apparent from FIG. 8, the residual water channel 46D is formed at both ends of the case 46 so as not to protrude into the air channel.
[0032]
The humidifying element 47 is accommodated in an element holder 48, and a handle 48A is formed in the element holder 48. As shown in FIG. 3, when the front exterior body 36 is opened, the humidifying element 47 faces the front surface of the exterior body so that the element holder 48 can be taken out.
[0033]
The humidifying element 47 is made of a material that easily contains moisture, such as sponge. When air passes through the humidifying element 47, the water in the humidifying element 47 is naturally evaporated, and the air blown into the room from the air outlet 38 is humidified. This humidification is mainly performed during the heating operation of the air conditioner 10.
[0034]
As shown in FIG. 1, the humidifying water supply pipe 40 for supplying water to the humidifying element 47 is branched from the heat source machine water supply pipe 28 and humidifies clean water before being supplied to the heat source machine water supply pipe 28. Lead to element 47. Further, the humidification water supply pipe 40 is provided with a thermal valve 44 for adjusting the flow rate of water flowing in the humidification water supply pipe 40. The amount of water supplied to the humidifying element 47 is controlled by adjusting the opening of the thermal valve 44.
[0035]
A control device (not shown) opens the thermal valve 44 when a humidification operation is selected and commanded by a remote controller (not shown). Then, the control device adjusts the opening degree of the thermal valve 44 so that the indoor humidity detected by the humidity sensor 42 installed in the indoor unit 12 substantially matches the set humidity set in the remote controller or the like. To do.
[0036]
Since it is configured as described above, the following effects (1) to (3) are achieved according to the above embodiment.
[0037]
(1) The second heat exchanging portion 23B of the indoor refrigerant heat exchanger 23, the indoor hot water heat exchanger 24, and the vaporizing humidifier 45 are fixedly attached to a fixed plate 49, and each heat exchange of the indoor refrigerant heat exchanger 23 is performed. The parts 23A, 23B, and 23C and the indoor hot water heat exchanger 24 are attached to the fixing plate 51 and fixed to be integrated, so that the parts 23A, 23B, and 23C become strong and easy to assemble to the indoor unit.
[0038]
(2) The vaporizing humidifier 45 is inserted and disposed in the gap between the second heat exchanging portion 23B and the indoor hot water heat exchanger 24, the gap is closed by the flanges 52 and 53 of the vaporizing humidifier 45, and the flange 53 is screwed into the screw 54A. , 54B prevents leakage of humidified air on the secondary side of the indoor heat exchanger 25.
[0039]
(3) By attaching / detaching the screws 54A, 54B, the vaporizing humidifier 45 becomes detachable and can be easily replaced.
[0040]
As mentioned above, although this invention was demonstrated based on the said embodiment, this invention is not limited to this.
[0041]
For example, a gap may be formed between the first heat exchange unit 23A and the second heat exchange unit 23B, and the vaporizing humidifier 45 may be inserted and disposed there.
[0042]
Although the case where the second heat exchanging part 23B and the indoor hot water heat exchanger 24 are fixed by the fixing plate 49 has been described, the indoor hot water heat exchanger 24 is arranged on the primary side of the third heat exchanging part 23C, and the second The heat exchange part 23B and the third heat exchange part 23C may be fixed by a fixing plate 49.
[0043]
Although the humidified water supply pipe 40 has been described as being in contact with both the warm water return pipe 29 and the warm water return pipe 30, it may be in contact with either the warm water return pipe 29 or the warm water return pipe 30. In the air conditioner 10, the hot water supply unit 13 is described as being installed separately from the outdoor unit 11, but may be disposed in the outdoor unit 11. Further, the thermal valve 44 may be a normal control valve whose opening degree is adjusted by a control device.
[0044]
【The invention's effect】
In these inventions, the assembly work of the heat exchanger and the vaporizing humidifier to the indoor unit is facilitated, leakage of the humidified air on the secondary side of the heat exchanger is prevented, and the vaporizing humidifier can be attached and detached. It becomes easy.
[Brief description of the drawings]
FIG. 1 is a circuit diagram showing an embodiment of an air conditioner according to the present invention.
FIG. 2 is a cross-sectional view showing an indoor unit of the air conditioner of FIG.
3 is a cross-sectional view showing an indoor unit of the air conditioner of FIG. 1. FIG.
FIG. 4 is an enlarged view of a mounting portion of a fixed plate.
FIG. 5 is a front view of a fixed plate.
6 is a side view of the fixing plate as viewed from an arrow C in FIG. 5. FIG.
7 is an end view of the fixing plate as viewed from an arrow D in FIG. 5. FIG.
FIG. 8 is an exploded perspective view showing a vaporizing humidifier.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Air conditioning apparatus 12 Indoor unit 23 Indoor refrigerant | coolant heat exchanger 23A, 23B, 23C Heat exchange part 24 Indoor hot water heat exchanger 25 Indoor heat exchanger 35 Rear exterior body 36 Front exterior body 45 Evaporative humidifier 46 Case 47 Humidification element 49 fixed plate 51 fixed plate 54A, 54B screw 55A, 55B screw 71 mounting portion 72, 73, 74, 75 claw portion 78 extended portion 80 tube plate

Claims (2)

A heat exchanger divided into a plurality of heat exchanging parts is arranged inside the exterior body, and a gap for inserting a vaporizing humidifier is formed between the heat exchanging parts constituting the heat exchanger. A vaporizing humidifier is inserted and arranged, heat exchange parts constituting the heat exchanger are fixed to each other by a fixed plate at a predetermined angle, and an attachment part of the fixed plate extends to an end of the heat exchange part. An air conditioner characterized in that the vaporizing humidifier is fixed to the mounting portion with a screw at an end. A heat exchanger divided into a plurality of heat exchanging parts is arranged inside the exterior body, and a gap for inserting a vaporizing humidifier is formed between the heat exchanging parts constituting the heat exchanger. The vaporizing humidifier is inserted and arranged, the heat exchange parts constituting the heat exchanger are fixed to each other by a fixing plate at a predetermined angle, the vaporizing humidifier is fixed to the mounting part of the fixing plate with a screw, An air conditioner, wherein the fixing plate has a claw portion, the claw portion overlaps with the tube plate of the heat exchanging portion, and the tube plate and the claw portion are fixed with screws.

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