JP2008138967A - Outdoor unit for air conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor unit capable of wiring a fan motor harness causing little damage to the fan motor harness, and allowing little water intrusion into an electrical component unit. <P>SOLUTION: The outdoor unit 3 for the air conditioner 1 is provided with a blow fan 38, an outdoor heat exchanger 30, the electrical component unit 43, the harness 46, and harness fixtures 47, 48. The outdoor heat exchanger is arranged behind the blow fan. The electrical component unit is arranged in a side of the blow fan and in front of the outdoor heat exchanger, and it houses a board. The harness is extended from the electrical component unit to the blow fan. The harness fixtures have attachment parts 47a, 48a, and support parts 47b, 48b. The attachment parts are attached to the outdoor heat exchanger. The support parts support the harness. The harness is fixed by the harness fixtures not to pass an upper side of the blow fan. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an outdoor unit for an air conditioner.

Conventionally, there exists a technique like patent document 1 as an outdoor unit of an air conditioning apparatus. In such an outdoor unit of an air conditioner, when the fan motor harness is wired to the board in the electrical component unit, the shortest distance is connected so as not to interfere with the rotating part of the blower fan up to the machine room. It corresponds. For this reason, the fan motor harness is disposed in the upper space of the blower fan. The outdoor unit is partitioned by a partition plate into a machine room in which an electrical component unit is housed and a ventilation chamber in which a blower fan is provided. Since the fan motor harness passes through the partition plate and connects the blower fan to the electrical component unit at the shortest distance, the fan motor harness passes through the vicinity of the blower fan of the partition plate.
JP 2005-69584 A

  However, there is a need to reduce the size of the outdoor unit and to reduce the noise of the blower fan by increasing the size of the blower fan, and when these are realized, the blower fan occupies the vicinity of the top plate. In this case, if the fan motor harness is disposed in the upper space of the blower fan, the fan motor harness may interfere with the blower fan and damage the fan motor harness such as disconnection. Also, when the blower fan is washed with water or when rain enters the ventilation chamber, water enters the electrical component unit through the opening of the partition plate through which the fan motor harness passes. There is a risk of electrical components being damaged by intrusion. In order to prevent this, it is necessary to take a waterproof measure for the opening of the partition plate through which the fan motor harness passes, which is costly.

  An object of the present invention is to provide an outdoor unit in which a fan motor harness can be wired so that the fan motor harness is not easily damaged and water does not easily enter the electrical component unit.

  The outdoor unit of the air conditioner according to the first aspect of the present invention includes a blower fan, an outdoor heat exchanger, an electrical component unit, a harness, and a harness fixture. The outdoor heat exchanger is disposed behind the blower fan. The electrical component unit is disposed on the side of the blower fan and in front of the outdoor heat exchanger, and stores the substrate. The harness extends from the electrical component unit to the blower fan. The harness fixture has a mounting portion and a support portion. The mounting portion is mounted on the outdoor heat exchanger. The support part supports the harness. The harness is fixed by a harness fixture so as not to pass above the blower fan.

  In the present invention, the harness connecting the electrical component unit and the blower fan is fixed by the harness fixture so as not to pass through the space above the blower fan. Thereby, since it becomes difficult for a ventilation fan and a harness to interfere, it can prevent that a harness is damaged by a ventilation fan.

  An outdoor unit of an air conditioner according to a second aspect of the present invention is the outdoor unit of the air conditioner according to the first aspect of the present invention, and the harness fixture is mounted with the mounting portion sandwiching a part of the outdoor heat exchanger.

  In the present invention, since the harness fixture is securely attached to the outdoor heat exchanger, the harness is wired along the outdoor heat exchanger. Therefore, the harness can be wired so as not to interfere with the blower fan.

  The outdoor unit of the air conditioner according to the third aspect of the invention is the outdoor unit of the air conditioner according to the second aspect of the invention, and the outdoor heat exchanger is composed of a single row heat exchanger. The harness fixture has a first surface and a second surface. The first surface is in contact with the front surface of the single row heat exchanger. The second surface is in contact with the rear surface of the single row heat exchanger.

  In the present invention, when the outdoor heat exchanger is a single-row heat exchanger, the harness fixture is mounted by sandwiching the front surface and the rear surface of the outdoor heat exchanger. Since the front and rear surfaces of the one-row heat exchanger are sandwiched and mounted, they can be easily mounted.

  An outdoor unit of an air conditioner according to a fourth aspect of the present invention is an outdoor unit of an air conditioner according to the second aspect of the present invention, and the outdoor heat exchanger is composed of a plurality of single-row heat exchangers. The harness fixture has a first surface and a second surface. The first surface is in contact with the front surface of the single row heat exchanger. The second surface is in contact with the rear surface of the single row heat exchanger. Further, the harness fixture is attached to the one-row heat exchanger on the side of the blower fan of the outdoor heat exchanger.

  In the present invention, when the outdoor heat exchanger is composed of a plurality of one-row heat exchangers, the harness fixture is mounted by sandwiching the one-row heat exchanger on the blower fan side.

  Therefore, even in the case of an outdoor heat exchanger in which there are a plurality of single-row heat exchangers, the harness fixture of the single-row heat exchanger can be diverted and mounted. For this reason, the types of parts can be reduced, and the production cost can be suppressed.

  An outdoor unit of an air conditioner according to a fifth aspect of the present invention is the outdoor unit of the air conditioner according to any of the first to fourth aspects of the present invention, wherein the harness fixture further has a claw at the tip of the support part. . The claw part can bend the harness together with the support part by bending.

  In the present invention, the harness fixture has a claw portion at the tip of the support portion, and holds the harness with the bent claw portion and the support portion.

  Therefore, the harness can be gripped by the claw portion and the support portion by bending the claw portion. The harness fixture can not only support the harness but also hold it. For this reason, the harness fixture can reliably wire the harness to the side surface of the outdoor heat exchanger. Thereby, the harness can be wired so as not to pass through the upper side of the blower fan.

  An outdoor unit of an air conditioner according to a sixth aspect of the present invention is the outdoor unit of the air conditioner according to any of the first to fourth aspects of the present invention, wherein the harness fixture further includes a spring part facing the support part. The spring part is a plate-like spring and can hold the harness together with the support part.

  In the present invention, the harness fixture has a spring portion facing the support portion, and the harness is held by the spring portion and the support portion. By providing the spring portion, the harness fixture can not only support the harness but also hold it. For this reason, the harness fixture can reliably wire the harness to the side surface of the outdoor heat exchanger. Thereby, the harness can be wired so as not to pass through the upper side of the blower fan. Moreover, a harness can be hold | gripped only by inserting a harness between a spring part and a support part, and the work process of outdoor unit manufacture can be simplified.

  An outdoor unit for an air conditioner according to a seventh aspect of the present invention is the outdoor unit for an air conditioner according to any one of the first to sixth aspects, further comprising an outdoor unit casing. The outdoor unit casing has an internal space. The internal space is partitioned by a partition member into a machine room and a ventilation chamber. The ventilation chamber is provided from the first space on the side of the machine room to the second space behind the machine room. The blower fan is disposed in the first space. The outdoor heat exchanger is disposed from the rear space of the blower fan to the second space in the ventilation chamber. The electrical component unit is disposed in the machine room.

  In this invention, it has the outdoor unit casing divided by the partition member into the machine room and the ventilation chamber. In the ventilation chamber, rainwater and the like are likely to enter because air is actively taken in by the blower fan. For this reason, it is possible to prevent rainwater from entering the machine room by separating the ventilation chamber and the machine room with a partition member, and protect the compressor and electrical component units from rainwater, which is weak against rainwater in the machine room. Can do.

  An outdoor unit of an air conditioner according to an eighth aspect of the present invention is the outdoor unit of the air conditioner according to the seventh aspect of the present invention, wherein the partition member has an opening through which the harness passes in the back side portion.

  In the present invention, the harness passes through an opening provided in the rear side portion of the partition member and is connected to the electrical component unit. Since the opening is provided not in the vicinity of the blower fan of the partition member as in the prior art, but in the rear side part, the blower fan is washed with water or raining, so that water enters the ventilation chamber Even in the case of intrusion, rainwater can be made difficult to enter the electrical component unit.

  An outdoor unit of an air conditioner according to a ninth aspect is the outdoor unit of an air conditioner according to the eighth aspect, wherein the opening is provided on the back side of the substrate.

  In this invention, the opening provided in a partition plate is arrange | positioned rather than the board | substrate at the back side. As described above, since the opening is provided at a position far from the blower fan, when the blower fan is washed with water or when rain enters the ventilation chamber, the electrical component unit is opened from the opening. Water can hardly enter inside. For this reason, it is possible to prevent electrical components from being damaged due to water entering the electrical component unit even if the waterproofing is hardly applied to the opening.

  An outdoor unit for an air conditioner according to a tenth aspect of the present invention is the outdoor unit for an air conditioner according to any of the first to ninth aspects, wherein the mounting surface of the board faces the front side.

  In the present invention, the mounting surface of the board on which the electrical components in the electrical component unit are mounted faces the front. Since the mounting surface does not face the side of the partition plate where there is a risk of intrusion of moisture such as rainwater, it is possible to prevent damage to the circuit of the electrical equipment as much as possible even when there is intrusion of moisture.

  In the outdoor unit of the air conditioner according to the first aspect of the present invention, the harness connecting the electrical component unit and the blower fan is fixed by the harness fixture so as not to pass through the space above the blower fan. Thereby, since it becomes difficult for a ventilation fan and a harness to interfere, it can prevent that a harness is damaged by a ventilation fan.

  In the outdoor unit of the air conditioner according to the second aspect of the present invention, the harness fixture is securely attached to the outdoor heat exchanger, and therefore the harness is wired along the outdoor heat exchanger. Therefore, the harness can be wired so as not to interfere with the blower fan.

  In the outdoor unit for an air conditioner according to the third aspect of the invention, the harness fixture is mounted with the front and rear surfaces of the outdoor heat exchanger sandwiched between the outdoor heat exchangers when the outdoor heat exchanger is a single-row heat exchanger. Since the front and rear surfaces of the one-row heat exchanger are sandwiched and mounted, they can be easily mounted.

  In the outdoor unit of the air conditioner according to the fourth aspect of the invention, the harness fixture of the single-row heat exchanger can be used even when the outdoor heat exchanger has a plurality of single-row heat exchangers. . For this reason, the types of parts can be reduced, and the production cost can be suppressed.

  In the outdoor unit of the air conditioner according to the fifth aspect of the invention, the harness can be gripped by the claw portion and the support portion by bending the claw portion. The harness fixture can not only support the harness but also hold it. For this reason, the harness fixture can reliably wire the harness to the side surface of the outdoor heat exchanger. Thereby, the harness can be wired so as not to pass through the upper side of the blower fan.

  In the outdoor unit of the air conditioner according to the sixth aspect of the present invention, the harness fixture has a spring portion facing the support portion, and the harness is held by the spring portion and the support portion. By providing the spring portion, the harness fixture can not only support the harness but also hold it. For this reason, the harness fixture can reliably wire the harness to the side surface of the outdoor heat exchanger. Thereby, the harness can be wired so as not to pass through the upper side of the blower fan. Moreover, a harness can be hold | gripped only by inserting a harness between a spring part and a support part, and the work process of outdoor unit manufacture can be simplified.

  The outdoor unit of the air conditioner according to the seventh aspect of the invention has an outdoor unit casing that is partitioned into a machine room and a ventilation chamber by a partition member. In the ventilation chamber, rainwater and the like are likely to enter because air is actively taken in by the blower fan. For this reason, it is possible to prevent rainwater from entering the machine room by separating the ventilation chamber and the machine room with a partition member, and protect the compressor and the electrical component unit from rainwater, which is vulnerable to rainwater in the machine room. Can do.

  In the outdoor unit for an air-conditioning apparatus according to the eighth aspect of the present invention, the harness passes through an opening provided in the back side portion of the partition member and is connected to the electrical component unit. Since the opening is provided not in the vicinity of the blower fan of the partition member as in the prior art, but in the rear side part, the blower fan is washed with water or raining, so that water enters the ventilation chamber Even in the case of intrusion, rainwater can be made difficult to enter the electrical component unit.

  In the outdoor unit for an air conditioner according to the ninth aspect of the invention, the opening provided in the partition plate is disposed on the back side of the substrate. As described above, since the opening is provided at a position far from the blower fan, when the blower fan is washed with water or when rain enters the ventilation chamber, the electrical component unit is opened from the opening. Water can hardly enter inside. For this reason, it is possible to prevent electrical components from being damaged due to water entering the electrical component unit even if the waterproofing is hardly applied to the opening.

  In the outdoor unit for an air conditioner according to the tenth aspect of the invention, the mounting surface of the board on which the electrical components in the electrical component unit are mounted faces the front. Since the mounting surface does not face the side of the partition plate where there is a risk of intrusion of moisture such as rainwater, it is possible to prevent damage to the circuit of the electrical equipment as much as possible even when there is intrusion of moisture.

<Overall configuration of air conditioner>
An appearance of an air conditioner 1 in which an embodiment of the present invention is employed is shown in FIG.

  The air conditioner 1 includes an indoor unit 2 attached to an indoor wall surface and the like, and an outdoor unit 3 installed outside the room.

  An indoor heat exchanger 70 is accommodated in the indoor unit 2, and an outdoor heat exchanger 30 is accommodated in the outdoor unit 3, and each heat exchanger 30, 70 is connected by the refrigerant pipe 4 to thereby generate a refrigerant. A circuit is configured (see FIG. 2).

<Outline of configuration of refrigerant circuit of air conditioner>
The structure of the refrigerant circuit of the air conditioning apparatus 1 is shown in FIG. This refrigerant circuit mainly includes an indoor heat exchanger 70, an accumulator 31, a compressor 32, a four-way switching valve 33, an outdoor heat exchanger 30, and an electric expansion valve 34.

  The indoor heat exchanger 70 provided in the indoor unit 2 exchanges heat with the air that comes into contact therewith. Further, the indoor unit 2 is provided with a cross flow fan 71 for sucking indoor air, passing the air through the indoor heat exchanger 70, and discharging the air after being exchanged into the room. The cross flow fan 71 is formed in a long and thin cylindrical shape, and is arranged so that the central axis is parallel to the horizontal direction. The cross flow fan 71 is rotationally driven by an indoor fan motor 72 provided in the indoor unit 2.

  The outdoor unit 3 is connected to a compressor 32, a four-way switching valve 33 connected to the discharge side of the compressor 32, an accumulator 31 connected to the suction side of the compressor 32, and a four-way switching valve 33. An outdoor heat exchanger 30 and an electric expansion valve 34 connected to the outdoor heat exchanger 30 are provided. The electric expansion valve 34 is connected to the liquid refrigerant communication pipe 41 via the filter 35 and the liquid closing valve 36, and is connected to one end of the indoor heat exchanger 70 via the liquid refrigerant communication pipe 41. The four-way switching valve 33 is connected to the gas refrigerant communication pipe 42 via the gas closing valve 37, and is connected to the other end of the indoor heat exchanger 70 via the gas refrigerant communication pipe 42. The liquid refrigerant communication pipe 41 and the gas refrigerant communication pipe 42 correspond to the refrigerant pipe 4 in FIG. Further, the outdoor unit 3 is provided with a blower fan 38 for discharging the air after heat exchange in the outdoor heat exchanger 30 to the outside. The blower fan 38 is rotationally driven by a fan motor 39.

  Hereinafter, the configuration of the outdoor unit 3 will be described in detail.

<Configuration of outdoor unit>
As shown in FIG. 3, the outdoor unit 3 includes an outdoor unit casing 5 (see FIG. 1), a compressor 32, a four-way switching valve 33, an electric expansion valve 34 (see FIG. 2), closing valves 36 and 37, and a reactor 40. , An electrical component unit 43, an outdoor heat exchanger 30, a blower fan 38, a fan motor 39, a fan motor base 44, a bell mouth 45, and the like.

  The outdoor unit casing 5 mainly includes a top plate 50, a bottom plate 51, a front plate 52, a left side plate 53, a right side plate 54, a closing valve cover 55, and a partition plate 56.

  The top plate 50 is disposed on the upper surface of the outdoor unit 3 and covers the upper surface of the internal space of the outdoor unit 3. The top plate 50 is made of sheet metal. Further, the edge of the top plate 50 is bent downward in the vertical direction, and a screw hole is provided as a fixing means for fixing the front plate 52 in the front plate front portion 58 located on the front side among the bent portions. ing.

  The bottom plate 51 is disposed on the lower surface of the outdoor unit 3 and covers the lower part of the internal space of the outdoor unit 3. The bottom plate 51 is made of sheet metal. Further, the edge of the bottom plate 51 is bent upward in the vertical direction, and a screw hole is provided as a fixing means for fixing the front plate 52 in the bottom plate front portion 57 located on the front side among the bent portions. Yes.

  The front plate 52 is made of a resin such as polypropylene and is provided on the front surface of the outdoor unit 3. The front plate 52 is disposed on the front side of the bell mouth 45 and the fan motor base 44. A screw hole is provided in each of the upper end and the lower end of the front plate 52, and the screw is passed through the screw hole in the front plate 52 and the screw holes provided in the top plate front portion 58 and the bottom plate front portion 57. The front plate 52 and the top plate 50 are screwed, and the front plate 52 and the bottom plate 51 are screwed. The front plate 52 is provided with a plurality of slit-shaped blowout holes 59. The air flow generated by the blower fan 38 and sucked into the ventilation chamber S <b> 2 from the back surface of the outdoor unit 3 is discharged to the outside of the outdoor unit 3 through the blowout hole 59. Also, a circular solid portion 61 without the blow hole 59 is provided near the center of the portion where the blow hole 59 is provided, and this solid portion 61 overlaps the fan motor 39 in a front view. Placed in position.

  The left side plate 53 is disposed on the left side surface of the outdoor unit 3 and covers the left side of the internal space of the outdoor unit 3. The left side plate 53 is formed of sheet metal.

  The right side plate 54 covers the right side of the internal space of the outdoor unit 3. The right side plate 54 is made of sheet metal. Further, a resin-made closing valve cover 55 is attached to the right side of the right side plate 54, that is, on the outer side.

  The partition plate 56 is provided perpendicular to the bottom plate 51. The partition plate 56 has a shape bent in a substantially L shape when viewed from above, and includes a first partition portion 56a substantially parallel to the front-rear direction of the outdoor unit 3, and a right side plate from the rear end of the first partition portion 56a. And a second partitioning portion 56 b extending toward 54. The first partition 56 a is a flat plate member that extends from the front surface to the back surface of the outdoor unit 3. As shown in FIG. 4, the front end of the first partition 56 a reaches the front surface of the outdoor unit 3, but the rear end does not reach the back surface of the outdoor unit 3 and is positioned in front of the back surface. The second partition 56b is a flat plate-like member that continuously extends from the rear end of the first partition 56a toward the right side plate 54. The second partition part 56b is located in front of the back surface of the outdoor unit 3, and the left end thereof is continuous with the rear end of the first partition part 56a, and the right end thereof reaches the rear part of the right plate 54. . The partition plate 56 partitions the interior of the outdoor unit casing 5 into a machine room S1 and a ventilation room S2. The machine room S <b> 1 is a space surrounded by the partition plate 56, the right side plate 54, and a part of the right side of the front plate 52, and intrusion of rain wind is suppressed. Therefore, as shown in FIGS. 4 and 5, the machine room S1 accommodates many machine parts that need to be protected from wind and rain such as the electrical component unit 43 and the compressor 32. The other space of the outdoor unit casing 5 is a ventilation chamber S2 through which air taken in from the outside of the outdoor unit 3 and discharged to the outside through the outdoor heat exchanger 30 passes. As shown in FIG. 6, the ventilation chamber S2 has a first space S3 and a second space S4, and extends from the first space S3 on the side of the machine room S1 to the second space S4 behind the machine room S1. Is provided. The first space S3 is located on the left side of the first partition part 56a, and is surrounded by the front and back surfaces of the outdoor unit 3, the left side plate 53, and the first partition part 56a. The second space S4 is located behind the second partition 56b, and is surrounded by the second partition 56b, the back surface of the outdoor unit 3, and the right side plate 54. In addition, a heat radiating fin projecting hole 56c including an opening communicating from the machine chamber S1 to the second space S4 of the ventilation chamber S2 is provided in the upper portion of the second partition portion 56b (see FIGS. 3 and 4). Furthermore, a notch 56d through which a fan motor harness 46 described later passes is provided at the upper end on the right end side of the second partition 56b (see FIG. 4).

  FIG. 5 is a schematic perspective view showing a part of the configuration of the outdoor unit 3. FIG. 6 is a top view illustrating a part of the configuration of the outdoor unit 3. In FIGS. 5 and 6, a part of the configuration is omitted for easy understanding.

  The compressor 32 is disposed in the machine room S <b> 1 and is fixed to the bottom plate 51. The four-way switching valve 33 is disposed on the side of the compressor 32. The electric expansion valve 34 (see FIG. 2) is disposed in the machine room S <b> 1 similarly to the compressor 32, and is disposed on the side of the compressor 32. The closing valves 36 and 37 are disposed below the right side plate 54. The reactor 40 is disposed on the side wall of the first partition 56a on the machine room S1 side.

  The electrical component unit 43 is disposed in the upper part of the machine room S1. The electrical component unit 43 includes a control circuit such as a microcomputer chip for controlling various devices, a memory for storing a control program, and other control components, and includes a compressor 32, a four-way switching valve 33, The electric expansion valve 34, the fan motor 39, and the reactor 40 are connected. The electrical component unit 43 will be described in detail later.

  The outdoor heat exchanger 30 is disposed in the ventilation chamber S2 and exchanges heat with the air passing therethrough. The outdoor heat exchanger 30 includes two cross fin type single row heat exchangers (a front side first outdoor heat exchanger 30a and a back side second outdoor heat exchanger 30b) arranged in two rows. (See FIGS. 3 and 6). In the outdoor heat exchanger 30, a first outdoor heat exchanger 30 a and a second outdoor heat exchanger 30 b are provided along the back surface and the left side plate 53 of the outdoor unit 3. The first outdoor heat exchanger 30a has a substantially L-shape having a first heat exchange part 30c substantially parallel to the back surface and a second heat exchange part 30d parallel to the left side plate 53. Similarly to the first outdoor heat exchanger 30a, the second outdoor heat exchanger 30b also has a third heat exchange portion 30e substantially parallel to the back surface and a fourth heat exchange portion 30f parallel to the left side plate 53. It has an L shape. As shown in FIG. 6, the first heat exchange unit 30c and the third heat exchange unit 30e are located in the rear space of the blower fan 38 and the second space S4 in the first space S3, and the first heat exchange unit 30c. The right end of the third heat exchange part 30e reaches the vicinity of the right side plate 54 behind the machine room S1. That is, the first heat exchange unit 30c and the third heat exchange unit 30e are disposed over the first space S3 and the second space S4. The second heat exchange part 30d and the fourth heat exchange part 30f are located on the left side of the blower fan 38 in the first space S3 and are arranged close to the left side plate 53.

  The blower fan 38 is a propeller fan having a plurality of wings, and is disposed in the first space S3 of the ventilation chamber S2. The blower fan 38 is located downstream of the outdoor heat exchanger 30 in the first space S3 of the ventilation chamber S2, and is located in front of the first heat exchange unit 30c and the third heat exchange unit 30e. As shown in FIG. 6, the blower fan 38 is disposed substantially at the center of the first space S <b> 3 of the ventilation chamber S <b> 2 in a top view, and is located on the left side of the first partition portion 56 a. The blower fan 38 is fixed to the rotation shaft of the fan motor 39 and is driven to rotate about an axis parallel to the front-rear direction by the fan motor 39. The air flow generated by the blower fan 38 is taken into the ventilation chamber S2 from the back side of the outdoor unit 3, passes through the outdoor heat exchanger 30, the bell mouth 45, and the blowout holes 59 of the front plate 52, and then the outdoor unit 3. It is discharged outside.

  The bell mouth 45 is made of a resin such as polypropylene, and forms an air path that guides an air flow generated by the blower fan 38 and blown out of the room. The bell mouth 45 is fixed to the inner surface of the front plate 52 along the inner surface of the front plate 52 and is disposed so as to cover the periphery of the blower fan 38. The air flow generated by the blower fan 38 is taken from the outside through the back side of the outdoor unit 3 into the ventilation chamber S2, passes through the outdoor heat exchanger 30, passes through the opening of the bell mouth 45, and the blowout hole 59 of the front plate 52. It blows out to the exterior of the outdoor unit 3 through.

  The fan motor 39 is attached to the blower fan 38 from the rear side. The fan motor 39 is disposed such that the rotation shaft is positioned in parallel with the front-rear direction of the outdoor unit 3. The rotation axis of the fan motor 39 is fixed to the rotation center of the blower fan 38, and the fan motor 39 rotates the blower fan 38.

  The fan motor 39 is connected to the electrical component unit 43 by a fan motor harness 46 that can transmit a control signal with the control circuit. The fan motor harness 46 is connected to the back side of the fan motor 39 and extends to the upper end of the fan motor base 44 along the fan motor base 44. Then, it extends from the upper end of the fan motor base 44 along the upper end of the outdoor heat exchanger 30 to the right end side of the outdoor unit 3 of the outdoor heat exchanger 30 and from the right end side of the outdoor unit 3 to the right side of the electrical component unit 43 described later. It is connected to the second control board 86 (see later) from the front side of the electrical component unit 43 through the surface. At this time, the fan motor harness 46 is fixed to the upper part of the outdoor heat exchanger 30 by a harness fixture 47 provided on the back side of the electrical component unit 43 and at the upper end of the outdoor heat exchanger 30. FIG. 7 shows a mounting state diagram of the harness fixture 47. The harness fixture 47 includes a mounting portion 47a that can be attached to the outdoor heat exchanger 30, a support portion 47b that supports the fan motor harness 46, and a claw portion 47c that can fix the fan motor harness 46 together with the support portion 47b. is doing. The mounting portion 47a has a first surface 47d and a second surface 47e that are in contact with the front surface and the rear surface of the first outdoor heat exchanger 30a (see hatched portions in FIGS. 7 and 8). The mounting portion 47a has a first surface 47d that is in contact with the front surface of the first heat exchange portion 30c of the first outdoor heat exchanger 30a, and a second surface 47e that is the first heat exchange portion 30c of the first outdoor heat exchanger 30a. It is in contact with the rear surface and is securely attached (see FIG. 7). The support part 47b and the claw part 47c fix the fan motor harness 46 by sandwiching the fan motor harness 46 by bending the claw part 47c after the fan motor harness 46 is placed on the support part 47b (see FIG. 8). . As described above, the harness fixture 47 is attached to the outdoor heat exchanger 30 by the attachment portion 47a, and the fan motor harness 46 is fixed to the harness fixture 47 by the support portion 47b and the claw portion 47c. 46 can be wired along the outdoor heat exchanger 30.

  The fan motor base 44 is a member that supports the fan motor 39 to which the fan motor 39 is fixed, and is made of sheet metal. As shown in FIGS. 5 and 6, the fan motor base 44 is disposed on the rear side of the blower fan 38 and the fan motor 39. The fan motor base 44 extends from the bottom plate 51 along the front surface side of the outdoor heat exchanger 30 and is fixed over the upper portion of the front plate and the upper portion of the outdoor heat exchanger 30. Therefore, the fan motor base 44 is positioned with reference to the front plate 52.

<Configuration of electrical component unit>
The electrical component unit 43 is accommodated in the upper part of the machine room S1, as shown in FIG. As shown in FIG. 9, the electrical component unit 43 includes an electrical component unit main body 81, a control board 82, and a radiation fin 83.

(1) Electrical component unit main body The electrical component unit main body 81 accommodates the control board 82 therein. The electrical component unit main body 81 has a box shape integrally molded from an elastic resin material, and a first opening 84 is provided on the front surface. The “front surface” in the description of the configuration of the electrical component unit refers to the surface of the electrical component unit main body 81 located on the front side of the outdoor unit 3 in a state where the electrical component unit 43 is attached to the machine room S1. The first opening 84 is provided over the entire front surface of the electric component unit main body 81, and the control board 82 is attached to the inside of the electric component unit main body 81 through the first opening 84. In addition, the back portion of the electrical component unit main body 81 has a shape in which a part is raised rearward. That is, as shown in FIG. 10, the electrical component unit main body 81 has a shape that matches the shape of the first control board 85 and the second control board 86 accommodated therein, and 2 parts 88. The first part 87 is a part that accommodates the first control board 85 inside, and is a part that protrudes rearwardly located on the back side of the electrical component unit main body 81. The second part 88 is a part that accommodates the second control board 86 therein, and is located between the first opening 84 and the first part 87 and is adjacent to the first opening 84. The “back side” here is the opposite side of the first opening 84 of the electrical component unit main body 81 and the rear side of the electrical component unit main body 81. The first portion 87 is formed in a shape smaller than the second portion 88 when viewed from the first opening 84. Further, as shown in FIG. 9, a second opening 89 is provided in the rear portion of the electrical component unit main body 81 adjacent to the first portion 87. The second opening 89 is provided on the back side of the electrical component unit main body 81 so as to face the first opening 84, and as shown in FIG. 10, the radiating fins 83 projecting to the outside of the electrical component unit main body 81 are provided. Pass through. FIG. 10 is a top view of the electrical component unit 43 in a state where it is attached to the outdoor unit 3.

(2) Control Board The control board 82 includes a first control board 85 and a second control board 86, which are arranged in parallel with each other with their non-mounting surfaces facing each other, as shown in FIGS. The first control board 85 is disposed on the back side of the electrical component unit main body 81, and the second control board 86 is disposed on the first opening 84 side of the electrical component unit main body 81.

  The first control board 85 is attached in the electrical component unit main body 81 through the first opening 84 and substantially parallel to the first opening 84. Therefore, when the first control board 85 is attached to the electrical component unit main body 81, the first control board 85 is attached in parallel to the vertical direction and is in a state parallel to the front surface of the outdoor unit 3. The mounting direction of the first control board 85 to the electrical component unit main body 81 is a direction perpendicular to the first control board 85, that is, a direction perpendicular to the first opening 84, and the electrical equipment with the mounting surface facing the back side. It is attached to the unit main body 81.

  The second control board 86 is attached substantially in parallel to the first control board 85 between the first control board 85 and the first opening 84 through the first opening 84. Therefore, the second control board 86 is attached in parallel to the vertical direction and is in a state parallel to the front surface of the outdoor unit 3. The mounting direction of the second control board 86 to the electrical component unit main body 81 is also a direction perpendicular to the first control board 85, that is, a direction perpendicular to the second control board 86, and the mounting surface is on the front side, that is, the first opening 84 side. Attached facing.

(3) Radiation fin The radiation fin 83 is provided in contact with the heat-generating component mounted on the second control board 86 as shown in FIG. The tips of the radiation fins 83 protrude from the second opening 89 of the electrical component unit main body 81. In a state where the electrical component unit 43 is attached to the machine room S1, the heat radiating fins 83 pass through the heat radiating fin protruding holes 56c (see FIG. 3) of the partition plate 56 as shown in FIGS. Project from the second space S4 of the ventilation chamber S2. The tips of the radiating fins 83 are opposed to the first heat exchanging portion 30c of the outdoor heat exchanger 30 in the second space S4, and the radiating fins 83 are located at the most extreme position on the blower fan 38 side of the partition plate 56, that is, from the left end. It is arranged on the machine room S1 side.

<Features>
(1)
In the present invention, the fan motor harness 46 that connects the electrical component unit 43 and the blower fan 38 is fixed by the harness fixture 47 so as not to pass through the space above the blower fan 38. Further, since the harness fixture 47 is attached to the outdoor heat exchanger 30, the fan motor harness 46 is wired along the outdoor heat exchanger 30.

  With such a configuration, the blower fan 38 and the fan motor harness 46 are less likely to interfere with each other, so that the fan motor harness 46 can be prevented from being damaged by the blower fan 38. Further, the fan motor harness 46 can be wired so as not to interfere with the blower fan 38.

(2)
In the present invention, the harness fixture 47 has a claw portion 47c at the tip of the support portion 47b, and the fan motor harness 46 is gripped by the bent claw portion 47c and the support portion 47b.

  Therefore, the fan motor harness 46 can be gripped by the claw portion 47c and the support portion 47b by bending the claw portion 47c. The harness fixture 47 not only simply supports the fan motor harness 46 but also can be gripped. For this reason, the harness fixture 47 can wire the fan motor harness 46 to the side surface of the outdoor heat exchanger 30. Thereby, the fan motor harness 46 can be wired so as not to pass the upper side of the blower fan 38.

(3)
In the present invention, the fan motor harness 46 is connected to the electrical component unit 43 through the notch 56 d provided in the second partition 56 b on the back side portion of the partition plate 56. Since the notch 56d is provided in the second partition 56b instead of the first partition 56a of the blower fan side portion of the partition plate 56 as in the prior art, the blower fan 38 is washed with water, Even if it is a case where water intrudes into the ventilation chamber S2 due to rain or the like, rainwater can be prevented from entering the electrical component unit 43.

<Modification>
(1)
In the present embodiment, the outdoor heat exchanger 30 is configured by arranging two rows of heat exchangers in a row, but not limited to this, for example, the row of heat exchangers may be one row, The row heat exchangers may be arranged in 3 rows or 4 rows or more. When the outdoor heat exchanger is a single-row heat exchanger with only one row, the harness fixture 47 is attached to the single-row heat exchanger and the single-row heat exchanger has three or more rows. Is mounted on a one-row heat exchanger located closest to the blower side.

  Therefore, even when the outdoor heat exchangers are arranged in a single row or in three or more rows, the harness fixtures 47 used in the present embodiment can be diverted and mounted. For this reason, the types of parts can be reduced, and the production cost can be suppressed.

(2)
In the present embodiment, the harness fixture 47 fixes the fan motor harness 46 by the support portion 47b and the claw portion 47c. However, the present invention is not limited to this, and like the harness fixture 48 of FIG. You may make it fix the fan motor harness 46 with 48b and the spring part 48c. The harness fixture 48 includes a mounting portion 48a, a support portion 48b, and a spring portion 48c. The spring portion 48c is provided at a position facing the support portion 48b, and the fan motor harness 46 is gripped by the spring portion 48c and the support portion 48b. The mounting portion 48a of the harness fixture 48 also has a first surface 48d and a second surface 48e, similar to the mounting portion 47a of the harness fixture 47 in the present embodiment.

  By providing the spring portion 48c, the harness fixture 48 can hold the harness as well as simply support the harness. For this reason, the harness fixture 48 can wire the fan motor harness 46 to the side surface of the outdoor heat exchanger 30. Thereby, the fan motor harness 46 can be wired so as not to pass the upper side of the blower fan. Further, the fan motor harness 46 can be gripped only by inserting the fan motor harness 46 between the support portion 48b and the spring portion 48c, and the work process for manufacturing the outdoor unit can be simplified.

(3)
In this embodiment, the partition plate 56 has a notch 56d at the upper end of the second partition 56b, and the fan motor harness 46 penetrates the notch 56d and is provided in the machine room S1. Is connected to the electrical component unit 48 provided in the ventilation chamber S2, but the opening through which the fan motor harness 46 penetrates the partition plate 56 is not limited to the notch 56d as in the present embodiment. The through-hole 56d in which the partition plate 60 is provided may be used (see FIG. 12). Similarly to the partition plate 56 of the present embodiment, the partition plate 60 also includes a first partition portion 60a and a second partition portion 60b, and the first partition portion 60a has a radiating fin protrusion hole 60c.
Is provided.

(4)
In the present embodiment, there are two control boards 82 and the second control board 86 to which the fan motor harness 46 is connected faces the front side, but the control board to which the fan motor harness 46 is connected is the front side. You may face the other side. However, it is preferable to face the front side from the viewpoint of protecting the mounted electrical components from rainwater or the like.

(5)
In the present embodiment, the fan motor harness 46 is wired by one harness fixture 47 along the outdoor heat exchanger 30. However, the present invention is not limited to this, and two or more harness fixtures 47 may be used. I do not care.

  The outdoor unit of the air conditioning apparatus according to the present invention can prevent the fan motor harness from being damaged, and is useful as an outdoor unit of the air conditioning apparatus.

The external view of an air conditioning apparatus. The block diagram of a refrigerant circuit. The exploded perspective view of an outdoor unit. The expansion perspective view of a partition plate. The perspective view which shows a part of structure of an outdoor unit. The top view which shows a part of structure of an outdoor unit. The attachment state figure of a harness fixture. The detail figure of the bending state of the nail | claw part of a harness fixture. The disassembled perspective view of an electrical component unit. The top view of an electrical component unit. The perspective view of the harness fixing tool which concerns on a modification (2). The expansion perspective view of the partition plate which concerns on a modification (3).

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Air conditioning apparatus 3 Outdoor unit 5 Outdoor unit casing 30 Outdoor heat exchanger 38 Blower fan 43 Electrical component unit 46 Fan motor harness (harness)
47 harness fixing tool 47a mounting part 47b support part 47c claw part 47d first surface 47e second surface 48 harness fixing tool 48a mounting part 48b support part 48c spring part 48d first surface 48e second surface 56 partition plate (partition member)
56d Notch (opening)
60 Partition plate (partition member)
60e Through hole (opening)
86 Second control board (board)
S1 Machine room S2 Ventilation room S3 First space S4 Second space

Claims (10)

A blower fan (38);
An outdoor heat exchanger (30) disposed behind the blower fan (38);
An electrical component unit (43) that is disposed on the side of the blower fan and in front of the outdoor heat exchanger and houses the substrate (86);
A harness (46) extending from the electrical component unit to the blower fan;
A harness fixture (47, 48) having a mounting portion (47a, 48a) to be mounted on the outdoor heat exchanger and a support portion (47b, 48b) for supporting the harness;
With
The harness is fixed by the harness fixture so as not to pass above the blower fan.
The outdoor unit (3) of the air conditioner (1). The harness fixture is mounted with the mounting portion sandwiching a part of the outdoor heat exchanger,
The outdoor unit (3) of the air conditioning apparatus (1) according to claim 1. The outdoor heat exchanger consists of a single row heat exchanger,
The harness fixture has a first surface (47d, 48d) that contacts the front surface of the first row heat exchanger, and a second surface (47e, 48e) that contacts the rear surface of the one row heat exchanger.
The outdoor unit of the air conditioning apparatus of Claim 2. The outdoor heat exchanger is composed of a plurality of one-row heat exchangers,
The harness fixture has a first surface in contact with the front surface of the one-row heat exchanger, and a second surface in contact with a rear surface of the one-row heat exchanger, and the mounting portion is the first surface of the outdoor heat exchanger. Attached to the one-row heat exchanger on the blower fan side,
The outdoor unit (3) of the air conditioning apparatus (1) according to claim 2. The harness fixture further includes a claw portion (48c) at a tip of the support portion,
The claw part is capable of gripping the harness together with the support part by bending.
The outdoor unit (3) of the air conditioning apparatus (1) according to any one of claims 1 to 4. The harness fixture (48) further includes a spring portion (48c) facing the support portion (48b),
The spring part is a plate-like spring and can hold the harness together with the support part.
The outdoor unit of the air conditioning apparatus in any one of Claim 1 to 4. Partition members (56, S1) and a ventilation chamber (S2) provided from a first space (S3) on the side of the machine chamber to a second space (S4) behind the machine chamber are provided. 60) an outdoor unit casing (5) having an internal space partitioned by
Further comprising
The blower fan is disposed in the first space,
The outdoor heat exchanger is disposed from the rear space of the blower fan to the second space in the ventilation chamber,
The electrical component unit is disposed in the machine room.
The outdoor unit (3) of the air conditioning apparatus (1) according to any one of claims 1 to 6. The partition member has an opening (56d, 60d) through which the harness passes in a back side portion thereof.
The outdoor unit (3) of the air conditioning apparatus (1) according to claim 7. The opening is provided on the back side of the substrate.
The outdoor unit (3) of the air conditioning apparatus (1) according to claim 8. The mounting surface of the substrate faces the front side,
The outdoor unit (3) of the air conditioner (1) according to claim 1.

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