WO2016189625A1

WO2016189625A1 - Motor, and indoor unit for air conditioning device

Info

Publication number: WO2016189625A1
Application number: PCT/JP2015/064951
Authority: WO
Inventors: 晋士友井川
Original assignee: 三菱電機株式会社
Priority date: 2015-05-25
Filing date: 2015-05-25
Publication date: 2016-12-01

Abstract

The purpose of the present invention is to provide a motor (1) comprising piping for supplying cooling water for efficiently cooling the outer shell of the motor (1). The motor (1) comprises: a rotating shaft (1a); a motor section (1b) for rotationally driving a fan through the rotating shaft (1a); a casing (1c) for housing the motor section (1b); and a pipe (8) provided on the outside surface of the casing (1c) and allowing cooling fluid to flow therethrough.

Description

Indoor unit of motor and air conditioner

The present invention relates to a motor having a cooling mechanism and an indoor unit of an air conditioner.

An indoor unit of an air conditioner generally includes a fan for blowing cool air or hot air into a room and a motor for rotating the fan. For example, during the cooling operation of the air conditioner, heat is generated in the indoor unit with the rotation of the motor, so even if cold air is generated, the cooling air is warmed by the heat from the motor, and efficient cooling operation cannot be performed. was there. Also, in the indoor unit of a conventional air conditioner, the heat source of drain water generated in the evaporator during cooling operation, water supplied to the humidifier during heating operation, and exhaust water discharged from the humidifier is used for other purposes. In general, the air was discharged outside the air conditioner without being reused.

Then, the air conditioner which covers the motor with which the indoor unit of an air conditioner is equipped with a cover, dripping the drain water generated in the evaporator at the time of air conditioning operation to the outline of a motor, and cools a motor is proposed. (For example, refer to Patent Document 1).

Japanese Patent Laid-Open No. 58-175738

In the air conditioner disclosed in Patent Document 1, it is unclear whether or not the cooling cover can be removed. Therefore, after attaching the cooling cover to the outer shell of the motor, there is a possibility that maintenance of the motor housed in the cooling cover cannot be performed. Further, since Patent Document 1 does not describe the detailed shape of the outer shell of the motor and the detailed mounting method of the cooling cover, it is unclear whether the cooling of the motor can actually be performed efficiently. It was.

The present invention has been made against the background of the above problems, and an object thereof is to obtain a motor including a cooling mechanism for efficiently cooling the outer shell of the motor and an indoor unit of an air conditioner.

A motor according to the present invention includes: a rotating shaft; a motor unit that rotationally drives a fan via the rotating shaft; a casing that houses the motor unit; and a pipe that is provided on a surface of the casing and allows fluid to pass therethrough. It is provided.

According to the present invention, a motor capable of efficiently cooling the casing can be obtained by providing a pipe through which a cooling fluid is passed on the outer surface of the casing that houses the motor unit.

It is the schematic of the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is the schematic of the motor of the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is the schematic of the motor of the indoor unit of the air conditioning apparatus which concerns on Embodiment 2 of this invention. It is the schematic of the motor of the indoor unit of the air conditioning apparatus which concerns on Embodiment 3 of this invention. It is the schematic of the convex part attached to the motor of the indoor unit of the air conditioning apparatus which concerns on Embodiment 4 of this invention. It is the schematic of the connection part of the pipe attached to the motor of the indoor unit of the air conditioning apparatus which concerns on Embodiment 5 of this invention. It is the schematic of the indoor unit of the air conditioning apparatus which concerns on Embodiment 6 of this invention.

Hereinafter, embodiments of a motor and an air conditioner indoor unit according to the present invention will be described with reference to the drawings. In addition, the form of drawing is an example and does not limit this invention. Moreover, what attached | subjected the same code | symbol in each figure is the same or it corresponds, and this is common in the whole text of a specification. Furthermore, in the following drawings, the relationship between the sizes of the constituent members may be different from the actual one.

Embodiment 1 FIG.
[Configuration of indoor unit of air conditioner]
FIG. 1 is a schematic diagram of an indoor unit of an air-conditioning apparatus according to Embodiment 1 of the present invention. As shown in FIG. 1, the indoor unit 100 of the air conditioner has a main body case 30, and the main body case 30 is partitioned into a blower unit 40 and a heat exchanger unit 50 by a fan plate 21. . The blower unit 40 is provided with a motor 1, two fan casings 2, a tube 7 and a drain port 22. The motor 1 includes a rotating shaft 1a extending horizontally with the fan casing 2, a motor portion 1b that rotates the rotating shaft 1a, and a casing 1c made of, for example, aluminum that houses the motor portion 1b. . A fan (not shown) is provided inside the fan casing 2. The motor unit 1b rotationally drives the fan via the rotating shaft 1a. The tube 7 connects the motor 1 side and the drain port 22. In the first embodiment, the casing 1c is made of aluminum. However, the casing 1c may be formed of other materials such as a steel plate or a resin. The tube 7 corresponds to the “first tube” in the present invention.

In addition, in this Embodiment 1, although the indoor unit 100 of the air conditioning apparatus showed the example provided with the fan casing 2 and two fans, this invention is not limited to this, The fan casing 2 and one fan may be sufficient. And three or more may be provided.

The heat exchanger unit 50 is provided with a heat exchanger 3, a drain pan 4 and a drain pump 5. A drain pan 4 is provided below the heat exchanger section 50, and a drain pump 5 and a heat exchanger 3 are provided above the drain pan 4. The drain pump 5 is provided with a tube 6 for sending out drain water, and is connected to the motor 1 side in the blower unit 40. An air outlet (not shown) for blowing out air is provided on the side surface (the front side of the paper surface) of the heat exchanger unit 50. The tube 6 corresponds to a “second tube” in the present invention.

[Operation of indoor unit 100]
When the motor unit 1b of the motor 1 rotates the fan via the rotary shaft 1a, the suction side of the fan casing 2 inside the blower unit 40 becomes negative pressure, and the air in the room is inside the indoor unit 100 of the air conditioner. Sucked into. Air sucked into the indoor unit 100 of the air conditioner passes through the fan casing 2 and is blown out to the heat exchanger unit 50. The air blown out to the heat exchanger section 50 passes through the heat exchanger 3, exits the indoor unit 100 of the air conditioner from the air outlet, and is blown out again into the living room. During the cooling operation, the air blown into the living room is cooled by passing through the heat exchanger 3 cooled by the refrigerant. Note that the arrows in FIG.

Here, during the cooling operation, when the refrigerant in the heat exchanger 3 exchanges heat with the air blown into the living room, the temperature of the refrigerant in the heat exchanger 3 is the water vapor contained in the air. When the temperature is lower than the dew point temperature, condensed water (condensation) is generated in the heat exchanger 3. Therefore, a drain pan 4 is provided below the heat exchanger 3 for storing and draining the condensed water.

Condensed water (drain water) generated in the heat exchanger 3 flows into the drain pan 4 installed below the heat exchanger 3 and is collected in one place by an inclination provided at the bottom of the drain pan 4. A drain pump 5 is installed at the deepest part of the drain pan 4 where the condensed water collects. Condensate water stored in the deepest part of the drain pan 4 is drained to the blower unit 40 side through the tube 6 by operation of the drain pump 5. And the condensed water drained to the air blower part 40 passes the tube 7 via the pipe 8 (refer FIG. 2) provided in the motor 1 mentioned later, and the exterior of the indoor unit 100 of the air conditioner from the drain port 22. Drained into

FIG. 2 is a schematic diagram of the motor of the indoor unit of the air-conditioning apparatus according to Embodiment 1 of the present invention. As shown in FIG. 2, the motor 1 has heat dissipating fins 9 extending parallel to the rotating shaft 1 a (see FIG. 1) on the outer surface of the casing 1 c and arranged in the circumferential direction. The radiating fin 9 has an elongated trapezoidal shape in which the top side is shorter than the bottom side and the height is high in the circumferential cross section of the casing 1c. Between the two radiating fins 9, a cylindrical pipe 8 formed of a metal such as copper is attached along the surface of the casing 1 c of the motor 1. Both ends of the pipe 8 are threaded and are configured to be fitted to the socket 10. The socket 10 is connected to a tube 6 for supplying a fluid (for example, water) or a tube 7 for draining the fluid, and the pipe 8 is configured to be detachable from the tube 6 and the tube 7 via the socket 10. Yes. As described above, the drain pump 5 supplies fluid to the pipe 8 through the tube 6 and drains the fluid from the pipe 8 to the tube 7. In FIG. 2, in order to show the shape of the pipe 8 in an easy-to-understand manner, the end portion of the pipe 8 is shown as being cut, but the actual end portion of the pipe is not cut. In the first embodiment, the example in which the radiating fins 9 are parallel to the rotating shaft 1a is shown, but it is not always necessary to be completely parallel and includes the concept of “substantially parallel”.

In the first embodiment, the shape of the pipe 8 is cylindrical, but the present invention is not limited to this, and the shape of the pipe 8 may be flat. By doing in this way, the heat exchange area of the pipe 8 and the casing 1c can be increased, and the casing 1c can be cooled more efficiently. Further, in the first embodiment, an example in which the trapezoid is formed in the circumferential cross section of the casing 1c of the radiating fin 9 is shown, but the present invention is not limited to this, and the cross section may be a triangle or a rectangular parallelepiped. The heat radiating fins 9 may be formed of a thin plate member.

Moreover, in this Embodiment 1, although the example which installed one pipe 8 in the casing 1c was shown, this invention is not limited to this, The situation of the heat generation amount of the motor 1, or the location where the motor 1 tends to generate heat, etc. A plurality of pipes 8 may be installed in accordance with the above. Moreover, in this Embodiment 1, although the example which provided the some radiation fin 9 in the casing 1c was shown, this invention is not limited to this, The pipe 8 is installed in the casing 1c which does not provide the radiation fin 9. FIG. Also good. In the first embodiment, the tube 6 and the pipe 8 are connected in a one-to-one relationship. However, the present invention is not limited to this, and the tip of the tube 6 is distributed to provide one tube. These tubes 6 may be connected to a plurality of pipes 8, and similarly, a single tube 7 may be connected to a plurality of pipes 8. The same applies to Embodiments 2 to 6 described later.

Next, the location and number of pipes 8 installed in the casing 1c will be described. The motor 1 has a portion where heat exchange is easily performed and a portion where heat exchange is difficult to occur due to the flow of ambient air. For example, as shown in FIG. 1, the main body case 30 has a fan plate 21 that partitions into a blower unit 40 and a heat exchanger unit 50. In the motor 1 between the two fan casings 2, since air easily flows on the blowing side of the fan casing 2, heat exchange between the air and the radiating fins 9 of the motor 1 is easy. However, since the blow-out side of the fan casing 2 is sandwiched between the fan plate 21 and the motor 1, air easily stagnates, and the heat radiation fins 9 and the air hardly exchange heat. Therefore, the motor 1 is efficiently cooled by placing the pipe 8 in a portion of the casing 1c of the motor 1 where heat exchange with the air is difficult to be performed and by causing a cooling fluid to flow in the pipe 8. Can do.

Further, the heat generated by the operation of the motor 1 warms the air in the main body case 30, and the warmed air tends to accumulate in the upper part of the main body case 30. Accordingly, the temperature of the upper portion of the motor unit 1b and the casing 1c is likely to rise with respect to the ground. Therefore, the motor 1 can be efficiently cooled by installing the pipe 8 mainly in the upper part of the casing 1c of the motor 1 where the temperature is likely to rise, and causing the cooling fluid to flow in the pipe 8. it can.

In addition, in a mold type DC motor or the like in which the control board is built in the motor casing, in order to suppress the control board from generating heat, a heat radiating fin is provided at the place where the control board is built in. There is. Also for such a motor, the cooling effect is promoted by providing a pipe for flowing a cooling fluid in the portion where the heat radiation fin is provided, that is, the portion where the motor generates heat most, rather than cooling the whole motor. It is possible.

[Effect of Embodiment 1]
From the above, according to the first embodiment, the motor 1 of the indoor unit 100 of the air conditioning apparatus has the motor unit 1b that rotates the fan via the rotating shaft 1a, and the casing 1c that houses the motor unit 1b. And a pipe 8 provided on the outer surface of the casing 1c and allowing fluid to pass therethrough. By doing in this way, it can concentrate efficiently on the part which should be cooled of the motor 1, can cool efficiently, and can attain energy saving at the time of air_conditionaing | cooling operation, and can suppress the lifetime reduction by heat_generation | fever of the motor 1. A simple motor 1 can be obtained.

Further, the motor 1 according to the first embodiment includes a tube 6 through which the fluid supplied to the pipe 8 circulates and a tube 7 through which the fluid discharged from the pipe 8 circulates, and one end of the pipe 8; The tube 6 is configured to be detachable, and the other end of the pipe 8 and the tube 7 are configured to be detachable. By doing so, the motor 1 can be easily replaced by removing the

tubes

6 and 7 from the pipe 8 of the motor 1 during maintenance of the motor 1.

Further, the motor 1 according to the first embodiment includes a plurality of heat radiation fins 9 parallel to the rotation shaft 1a on the outer surface of the casing 1c, and the pipe 8 is disposed between the plurality of heat radiation fins 9. . In this way, heat can be radiated not only from the heat radiating fins 9 but also from the pipes 8, and the motor 1 can be cooled more efficiently.

The indoor unit 100 of the air conditioner includes a motor 1, a heat exchanger 3, a drain pan 4 that stores condensed water generated in the heat exchanger 3, and a drain pump 5 that drains the condensed water stored in the drain pan 4. The drain pump 5 is configured to send condensed water as a fluid to the pipe 8 or a pipe 11 (see FIG. 3) described later. In this way, the condensed water generated during the cooling operation can be effectively used as the cooling water for the motor 1 before being discharged to the outside of the indoor unit 100 of the air conditioner. In addition, it is not necessary to separately provide a cooling water supply pipe or the like for cooling the motor 1, and it is possible to reduce the size and manufacturing cost of the indoor unit 100 of the air conditioner.

Embodiment 2. FIG.
Since the basic configuration of the indoor unit 100 of the air conditioning apparatus in the second embodiment is the same as that of the indoor unit 100 of the air conditioning apparatus in the first embodiment, hereinafter, the difference from the first embodiment will be mainly described. The second embodiment will be described. The difference between the first embodiment and the second embodiment is that a pipe is provided inside a radiating fin provided on the outer surface of the casing.

FIG. 3 is a schematic diagram of the motor of the indoor unit of the air-conditioning apparatus according to Embodiment 2 of the present invention. As shown in FIG. 3, a plurality of radiating fins 9 parallel to the rotating shaft 1a (see FIG. 1) are provided on the outer surface of the casing 1c. The radiating fin 9 is provided with a hole in a direction parallel to the rotating shaft 1a, and a pipe 11 is inserted into the hole of the radiating fin 9 and is formed of a metal such as copper and passes a cooling fluid. . Both ends of the pipe 11 are threaded and are configured to be fitted to the socket 10. The socket 10 is connected to a tube 6 for supplying water or a tube 7 for draining water, and the pipe 11 is configured to be detachable from the tube 6 and the tube 7 via the socket 10.

In the second embodiment, an example in which a plurality of pipes 11 are installed in the casing 1c has been shown. However, the present invention is not limited to this, and the situation is such as the amount of heat generated by the motor 1 or a location where the motor 1 easily generates heat. In combination, one pipe 11 may be provided. The same applies to Embodiments 3 and 4 described later.

[Effect of Embodiment 2]
From the above, according to the second embodiment, the motor 1 includes the heat dissipating fins 9 parallel to the rotating shaft 1a on the outer surface of the casing 1c, and the pipe 11 is provided inside the heat dissipating fins 9. And By doing in this way, in addition to the effect of Embodiment 1, the motor 1 can be efficiently cooled from both the radiation fin 9 and the pipe 11.

Embodiment 3 FIG.
Since the basic configuration of the indoor unit 100 of the air conditioning apparatus in the third embodiment is the same as that of the indoor unit 100 of the air conditioning apparatus in the first embodiment, the differences from the first embodiment will be mainly described below. The third embodiment will be described. The difference between the first embodiment and the third embodiment is that a convex portion parallel to the rotation axis is provided on the outer surface of the casing, and a pipe is provided inside the convex portion.

FIG. 4 is a schematic diagram of the motor of the indoor unit of the air-conditioning apparatus according to Embodiment 3 of the present invention. As shown in FIG. 4, a plurality of convex portions 12 parallel to the rotating shaft 1a (see FIG. 1) are provided on the outer surface of the casing 1c. And the convex part 12 is provided with the hole in the direction parallel to the rotating shaft 1a, The pipe 11 which shape | molds with metals, such as copper, and lets the fluid for cooling pass in the said hole. Both ends of the pipe 11 are threaded and are configured to be fitted to the socket 10 (see FIG. 2). The socket 10 is connected to a tube 6 for supplying water or a tube 7 for draining water, and the pipe 11 is configured to be detachable from the tube 6 and the tube 7 via the socket 10.

The radiating fin 9 is provided for the purpose of exchanging heat with air, but the convex portion 12 is not provided for the purpose of exchanging heat with air, and the pipe 11 is provided inside the convex portion 12. The purpose is to exchange heat between the fluid flowing through the pipe 11 and the motor 1. For this reason, since the convex part 12 does not need to make a surface area large, the height of the convex part 12 is made into the height equivalent to the height of the radiation fin 9 (refer FIG. 2), or lower than the radiation fin 9. FIG.

[Effect of Embodiment 3]
From the above, according to the third embodiment, the motor 1 is provided with the convex portion 12 parallel to the rotating shaft 1a on the outer surface of the casing 1c, and the pipe 11 is provided inside the convex portion 12. And By doing in this way, in addition to the effect of Embodiment 1, the motor 1 can be efficiently cooled from both the radiation fin 9 and the pipe 11.

Embodiment 4 FIG.
Since the basic configuration of the motor 1 according to the fourth embodiment is the same as that of the motor 1 according to the third embodiment, the fourth embodiment will be described below with a focus on differences from the third embodiment. The difference between the third embodiment and the fourth embodiment is that a convex portion provided with a pipe is detachable from the casing.

FIG. 5 is a schematic diagram of a convex portion attached to the motor of the indoor unit of the air-conditioning apparatus according to Embodiment 4 of the present invention. As shown in FIG. 5, the motor cooling component 13 includes a convex portion 12 extending in the longitudinal direction. A hole is provided in the convex portion 12, and a pipe 11 that is molded from a metal such as copper and passes a cooling fluid is inserted into the hole. Both ends of the pipe 11 are threaded and are configured to be fitted to the socket 10 (see FIG. 2). The socket 10 is connected to a tube 6 for supplying water or a tube 7 for draining water, and the pipe 11 is configured to be detachable from the tube 6 and the tube 7 via the socket 10.

Screw holes 14a for fitting screws 14 are provided at both ends of the motor cooling component 13. The motor cooling component fixing bracket 15 is formed of a U-shaped flat plate, and screw holes 14a for fitting screws 14 are provided at both ends of the flat plate.

By sandwiching the casing 1c between the motor cooling component 13 and the motor cooling component fixing bracket 15, and fitting the screw 14 into the screw hole 14a, the motor cooling component 13 and the motor cooling component fixing bracket 15 are connected. Mount on the casing 1c. Thus, the convex part 12 provided with the pipe 11 can be attached or detached with respect to the casing 1c.

[Effect of Embodiment 4]
From the above, according to the fourth embodiment, the convex portion 12 is configured to be detachably provided on the casing 1c. In this way, in addition to the effects of the third embodiment, even if the motor 1 is not provided with the convex portion 12 in advance, the motor cooling component 13 having the convex portion 12 and the motor cooling component fixing bracket 15 are provided. The convex part 12 can be provided in the casing 1c later by fixing the casing 1c with When the convex portion 12 is no longer needed, the convex portion 12 can be removed from the casing 1c by removing the motor cooling component 13 and the motor cooling component fixing bracket 15. Further, even when it becomes necessary to remove the motor 1 from the indoor unit 100 of the air conditioner for maintenance or the like, the motor cooling component with the

tubes

6 and 7 still attached to the pipe 11 provided on the convex portion 12 13 and the motor cooling component fixing bracket 15 are removed from the motor 1. By doing in this way, the effect that the fluid which exists in the inside of the

tubes

6 and 7 and the pipe 11 does not leak at the time of the maintenance of the motor 1 can be acquired.

Embodiment 5 FIG.
Since the basic configuration of the indoor unit 100 of the air conditioner in Embodiment 5 is the same as that of the indoor unit 100 of the air conditioner in Embodiment 1, the differences from Embodiment 1 will be mainly described below. The fifth embodiment will be described. The difference between the first embodiment and the fifth embodiment is that the pipes are connected by a connecting member.

FIG. 6 is a schematic diagram of a connecting part of a pipe attached to the motor of the indoor unit of the air-conditioning apparatus according to Embodiment 5 of the present invention. As shown in FIG. 6, the pipe connection tube 16 is formed in a U shape, and sockets 10 are provided at both ends. The pipe connection tube 16 can connect the two pipes 8 or the two pipes 11 via the sockets 10 at both ends. The pipe connection tube 16 corresponds to a “connection member” in the present invention.

[Effect of Embodiment 5]
From the above, according to the fifth embodiment, the two

pipes

8 or 11 and the pipe connection tube 16 that connects the two

pipes

8 or 11 are provided with the two pipes 8. Alternatively, the pipes 11 are connected to each other via a pipe connecting tube 16. By doing in this way, in addition to the effect of the first embodiment, when the cooling effect cannot be sufficiently obtained with one

pipe

8, 11, the two

pipes

8, 11 are connected, It is possible to increase the heat exchange area and obtain a higher cooling effect.

Embodiment 6 FIG.
Since the basic configuration of the indoor unit 100 of the air conditioner in the sixth embodiment is the same as that of the indoor unit 100 of the air conditioner in the first embodiment, the differences from the first embodiment are mainly described below. The sixth embodiment will be described. The difference between the first embodiment and the sixth embodiment is that a humidifier is provided in the indoor unit, and the motor is cooled using water supplied to the humidifier.

The fluid supplied to the pipe provided in the motor shown in the first embodiment is condensed water sucked up by the drain pump. Since the condensed water is generated only during the cooling operation, the condensed water is supplied to the motor during the heating operation. Cannot be used as a cooling fluid. Therefore, this method is possible only in the case of an air conditioner equipped with a humidifier. Before supplying water to the humidifier, the water is circulated through a pipe provided in the motor casing, so that the motor Cool down.

[Configuration of indoor unit of air conditioner]
FIG. 7 is a schematic diagram of an indoor unit of an air-conditioning apparatus according to Embodiment 6 of the present invention. As shown in FIG. 7, the indoor unit 100a of the air conditioner is configured by adding a humidifier 19, a tube 17, a tube 18, a tube 20, and a water supply port 24 to the indoor unit 100 of the air conditioner according to Embodiment 1. Is. The tube 17 connects the water supply port 24 and a pipe (pipe 8 or pipe 11) provided on the outer surface of the casing 1c. The tube 18 allows a pipe (pipe 8 or pipe 11) provided on the outer surface of the casing 1 c to communicate with the humidifier 19 provided in the heat exchanger unit 50. The tube 20 is provided from the humidifier 19 toward the drain pan 4.

The water supplied from the water supply port 24 passes through the tube 17 and the pipe (pipe 8 or pipe 11) provided on the outer surface of the casing 1c to cool the motor 1. Thereafter, the water passes through the tube 18 and is supplied to the humidifier 19. Excess discharged water generated in the humidifier 19 is drained to the drain pan 4 through the tube 20. The drainage water stored in a certain amount in the drain pan 4 is sucked up by the drain pump 5, passes through the tube 6 and the pipe (pipe 8 or pipe 11) provided on the outer surface of the casing 1c, cools the motor 1, Then, it passes through the tube 7 and is discharged from the drain port 22 to the outside of the indoor unit 100a of the air conditioner.

Here, when humidifying by the humidifier 19, since the higher water temperature is more likely to evaporate, it is preferable that the temperature of the water supplied to the humidifier 19 is higher, but most of the heating operation is in the winter season, In many cases, the temperature of water supplied from the water supply port 24 is low. Therefore, the water can be supplied to the humidifier 19 at a higher water temperature than usual by cooling the motor 1 and increasing the water temperature via the motor 1 before supplying water to the humidifier 19. For this reason, indoor humidification is facilitated.

In the sixth embodiment, as the fluid supplied to the pipe provided on the outer surface of the casing 1c, both water supplied from the water supply port 24 and discharged water generated in the humidifier are supplied. showed that. However, the present invention is not limited to this, for example, when the indoor unit naturally drains condensed water or discharged water without mounting a drain pump, or a pipe provided on the outer surface of the motor casing. If it is not necessary to supply the air to the interior, the discharged water may be discharged from the drain pan to the outside of the indoor unit without using it as a fluid for cooling the motor.

[Effect of Embodiment 6]
As described above, according to the sixth embodiment, the indoor unit 100a of the air conditioner includes the motor 1 and the humidifier 19 that receives the supply of water and humidifies the air. The pipe 8 or the pipe 11 passes water as a fluid, and the humidifier 19 is configured to receive the water passed through the pipe 8 or the pipe 11. By doing in this way, the temperature of water can be raised so that it may become easy to humidify with the humidifier 19, cooling the motor 1. FIG.

Further, the indoor unit 100a of the air conditioner further includes a drain pan 4 that stores the discharged water that has flowed out of the humidifier 19, and a drain pump 5 that drains the discharged water stored in the drain pan 4. The drain pump 5 sends the discharged water as a fluid to the pipe 8 or the pipe 11, and the pipe 8 or the pipe 11 passes the discharged water as the fluid. By doing in this way, since the excess discharge water from the humidifier 19 can be reused as the fluid for cooling the motor 1, water can be effectively utilized and saved.

In the first to sixth embodiments, the pipe for passing the cooling fluid is provided on the outer surface of the casing in order to cool the motor. However, the method described above is not applied to the motor. It is also possible to cool these by applying to the control board and its components. A heat radiation fin is attached so as to come into contact with the control board or a component of the control board, and a pipe through which a cooling fluid is passed is provided to flow the fluid, whereby heat generation of the control board or the like can be suppressed. Thereby, it is possible to suppress a decrease in the life of the component and a decrease in the performance of the component due to the temperature rise of the control board and the like.

1 motor, 1a rotating shaft, 1b motor unit, 1c casing, 2 fan casing, 3 heat exchanger, 4 drain pan, 5 drain pump, 6 tube, 7 tube, 8 pipe, 9 heat dissipation fin, 10 socket, 11 pipe, 12 Convex part, 13 Motor cooling parts, 14 screws, 14a screw holes, 15 Motor cooling parts fixing brackets, 16 pipe connection tubes, 17 tubes, 18 tubes, 19 humidifiers, 20 tubes, 21 fan plates, 22 drains, 24 water supply port, 25 air flow, 30 body case, 40 blower part, 50 heat exchanger part, 100 air conditioner indoor unit, 100a air conditioner indoor unit.

Claims

A rotation axis;
A motor unit that rotationally drives the fan via the rotating shaft;
A casing for housing the motor unit;
A motor provided on a surface of the casing and through which a fluid passes.
A first tube detachably connected to one end of the pipe;
The motor according to claim 1, further comprising a second tube detachably connected to the other end of the pipe.
A plurality of heat dissipating fins parallel to the rotating shaft are provided on the surface of the casing,
The motor according to claim 1, wherein the pipe is disposed between the plurality of heat radiation fins.
Provided on the surface of the casing with radiating fins parallel to the rotating shaft,
The motor according to claim 1, wherein the pipe is provided inside the radiating fin.
Providing a convex portion parallel to the rotation axis on the surface of the casing,
The motor according to claim 1, wherein the pipe is provided inside the convex portion.
The motor according to claim 5, wherein the convex portion is detachably provided on the casing.
Two pipes,
A connecting member for connecting the two pipes,
The motor according to any one of claims 1 to 6, wherein the two pipes are connected to each other via the connecting member.
A motor according to any one of claims 1 to 7;
A heat exchanger,
A drain pan for storing condensed water generated in the heat exchanger;
A drain pump for draining the condensed water stored in the drain pan,
The drain pump sends out the condensed water to the pipe.
A motor according to any one of claims 1 to 7;
A humidifier that is provided on the downstream side of the motor and humidifies the air by receiving water supply;
The pipe passes the water,
The humidifier receives the water that has passed through the pipe.
A drain pan for storing excess drainage water flowing out of the humidifier;
A drain pump for draining the discharged water stored in the drain pan,
The drain pump sends the discharged water to the pipe,
The indoor unit of the air conditioning apparatus according to claim 9, wherein the pipe passes the discharged water as the fluid.