JP6771586B2 - Air conditioner - Google Patents

Description

The present invention relates to an air conditioner having a heat exchanger and a blower in a housing, and more particularly to a structure of an outdoor unit having a protective member covering the downstream side of the blower.

The outdoor unit as an air-conditioning conditioner generally includes a housing, an air-cooled heat exchanger provided in the housing, and a blower such as a propeller fan for ventilating air (outside air) through the heat exchanger. It is equipped. Since the blower is a rotating body, a protective member that covers the downstream side (leeward side) of the blower so that a worker who installs or maintains the air conditioner or a general passerby does not accidentally contact the blower. Is provided.

For example, as this kind of conventional technique, there is one described in Japanese Patent No. 5924715 (Patent Document 1). In the case of Patent Document 1, a blower is provided in the upper part of the housing, and the blower is configured to suck air from the lower side and blow it out from the upper part. Further, a motor for driving a propeller fan (fan) is provided on the suction side of the blower, and a high-strength support member for supporting the motor is installed below the motor.

Further, a bell mouth is installed so as to cover the outer peripheral side of the propeller fan of the blower, and the upper end opening of the bell mouth is configured to be larger than the outer diameter of the upper end of the propeller fan, and a person mistakenly inserts the propeller fan into the propeller fan. A protective member is generally provided at the upper end opening of the bell mouth to prevent contact.
Conventionally, as the protective member, a protective net made of a metal wire, a protective net made of resin (grill), or the like has been used.

Japanese Patent No. 5924715

Since the protective net as the protective member has low strength, the amount of deformation increases when a large load is applied. For example, during maintenance of the air conditioner, a worker may work on the upper part of the housing of the air conditioner, but at this time, the worker falls into the protective net on the upper part of the blower for some reason. In such a case, the weight of the worker is added to the portion of the protective net. For this reason, the protective net may be significantly deformed to damage the propeller fan or the like, or the worker may be injured.

Therefore, in the conventional one, it is necessary to keep a large distance between the protective member (protective net) and the upper end of the blower. Therefore, it is necessary to increase the distance between the blower and the protective member or increase the strength of the protective member and its peripheral portion so that the protective member does not come into contact with the blower even if a large load is applied to the protective member. ..

However, if the distance between the protective member and the blower is large, the air conditioner becomes large, and if the strength of the protective net as the protective member is simply increased, the material cost increases or the diameter increases. There is a problem that the blowing resistance is increased by using a material such as a metal wire having a large diameter.

An object of the present invention is to obtain an air conditioner capable of suppressing deformation of a protective member of a blower even if a large load is applied to the protective member of the blower, while suppressing the increase in size and cost.

In order to achieve the above object, the present invention comprises a housing, a heat exchanger provided in the housing, a blower for ventilating the heat exchanger, a protective member covering the downstream side of the blower, and the blower. The support member is provided in the air conditioner, which is provided between the blower and the protective member.

According to the present invention, it is possible to obtain an air conditioner capable of suppressing deformation of a protective member of a blower even if a large load is applied to the protective member of the blower, while suppressing the increase in size and cost.

It is a perspective view of a general air conditioner. It is a perspective view which shows by breaking a part in order to explain the internal structure of the air conditioner shown in FIG. FIG. 3 is a cross-sectional view taken along the line III-III of the air conditioner shown in FIG. It is a schematic diagram explaining the schematic structure around the blower shown in FIG. It is a figure explaining Example 1 of the air conditioner of this invention, and is the perspective view of the main part explaining the structure around the blower. FIG. 5 is a perspective view of a main part of the blower shown in FIG. 5 as viewed from the A direction. It is a schematic diagram explaining the schematic structure around the blower shown in FIG. It is a schematic diagram explaining the deformation when a load F is applied to the motor support member shown in FIG. 7. It is a figure which shows the modification 1 of Example 1 of this invention, and is the figure which corresponds to FIG. It is a front view which shows the state in which the fan shown in FIG. 9 is simply stacked. It is sectional drawing which shows only the boss part of the fan shown in FIG. 10A. It is a front view which shows the state which improved the structure in the boss part of the fan shown in FIG. 9 and piled up. It is sectional drawing which shows only the boss part of the fan shown in FIG. 11A. It is a schematic diagram (cross-sectional view) explaining the example when the motor is installed in the boss part of the fan shown in FIG. 11A. It is a figure which shows the modification 2 of Example 1 of this invention, and is the figure which corresponds to FIG. It is a front view of the part of the fan shown in FIG. It is a schematic diagram (front view) of the blower which shows the modification 3 of Example 1 of this invention. It is sectional drawing explaining the internal structure of the boss part of the blower shown in FIG. It is a figure which shows the modification 4 of Example 1 of this invention, and is the figure which corresponds to FIG. It is a schematic diagram explaining the schematic structure around the blower shown in FIG. It is a perspective view explaining the appearance of a general side-blowing type air conditioner (outdoor unit). It is a front view of the air conditioner shown in FIG. It is a top view of the air conditioner shown in FIG. It is a side view of the air conditioner shown in FIG. It is a top sectional view of the air conditioner shown in FIG. It is a plan sectional view which shows Example 2 of the air conditioner of this invention. It is a plan sectional view which shows the modification of Example 2 of this invention.

Hereinafter, specific examples of the air conditioner of the present invention will be described with reference to the drawings. In each figure, the parts with the same reference numerals indicate the same or corresponding parts.

Example 1 of the air conditioner of the present invention will be described with reference to FIGS. 1 to 17.
First, the structure of the outdoor unit as a general air conditioner will be described with reference to FIGS. 1 to 4. FIG. 1 is a perspective view of a general air conditioner (outdoor unit), FIG. 2 is a perspective view showing a partially broken view for explaining the internal structure of the air conditioner shown in FIG. 1, and FIG. 3 is shown in FIG. FIG. 4 is a cross-sectional view taken along the line III-III of the air conditioner shown, and FIG. 4 is a schematic view illustrating a schematic configuration near the blower shown in FIG.

As shown in FIGS. 1 to 3, the outdoor unit as a conventional general air conditioner 100 has a heat exchanger (outdoor heat exchanger) 2 and a blower 3 installed in the housing 1. When the blower 3 rotates, air is sucked from the back surface and both side surfaces of the housing 1 and ventilated to the heat exchanger 2, and the air that has passed through the heat exchanger 2 is said to be. It passes through the blower 3 and is blown upward as shown by the broken arrow.

As shown in FIGS. 2 and 3, the blower 3 is arranged on the downstream side of the air flow (see the broken line arrow) with respect to the heat exchanger 2. The blower 3 has a fan (propeller fan in this example) 3a provided with a plurality of blades on the outer periphery of the boss portion, and a motor 4 for driving the fan 3a. The motor 4 is a support member 5 for the motor. It is fixed to. The motor 4 and its support member 5 are arranged on the upstream side of the air flow with respect to the fan 3a. Further, a tubular bell mouth 3b is provided along the outer circumference of the fan 3a, and a protective member 6 of the blower 3 is screwed or the like at the upper end of the bell mouth 3b at a position higher than the upper end of the fan. It is attached by the fixing means of.

Many of the protective members 6 are formed in a net shape by a metal wire or the like, but since the protective member generally has low strength, the amount of deformation increases when a large load is applied. For example, if a worker or the like falls down on the protective member on the upper part of the blower for some reason, the protective member may be greatly deformed and the fan 3a may be damaged.

It is possible to significantly increase the strength of the protective member 6 itself by means such as thickening the metal wire, or to reduce the deformation of the protective member 6 by increasing the number of fastening points with the bell mouth, but the cost And the use of larger diameter metal wires will increase the ventilation resistance. Therefore, conventionally, as shown in FIG. 4, the amount of deformation d1 of the protective member 6 due to the assumed load is the upper end of the bell mouth 3b so that the protective member 6 does not come into contact with the fan 3a even if a large load is applied to the protective member 6 and the protective member 6 is deformed to some extent. The distance between the fan 3a and the fan 3a is smaller than d2, that is,
d1 <d2
In many cases, the distance d2 is designed to be large so as to be. However, if the distance between the protective member and the blower is large, the air conditioner becomes large.

Cost reduction can be achieved if the protective member can be simplified and the housing size can be reduced while ensuring safety. Further, if the surplus space due to miniaturization is used for other purposes, or if the housing dimensions are the same, there is a margin for arranging parts in the housing, so that the degree of freedom in product design can be increased.

In FIGS. 1 to 3, reference numeral 7 denotes an electric component box provided in the upper part of the front surface of the housing 1 for accommodating control devices and the like, and can be easily accessed by opening the service cover 8 on the front side of the housing. It is configured in. Further, 10 is a compressor and 11 is an accumulator, and these devices are installed on the bottom base plate 9 in the housing 1. Further, the air conditioner 100 is installed on the concrete foundation 20 via the legs 12.

Next, Example 1 of the air conditioner of the present invention will be described with reference to FIGS. 5 to 8. FIG. 5 is a view for explaining the first embodiment of the air conditioner of the present invention, and FIG. 6 is a perspective view of a main part for explaining a configuration near a blower, and FIG. 6 is a perspective view of a main part of the blower shown in FIG. 5 as viewed from the A direction. FIG. 7 is a schematic view for explaining a schematic configuration in the vicinity of the blower shown in FIG. 6, and FIG. 8 is a schematic view for explaining deformation when a load F is applied to the motor support member shown in FIG.

In the first embodiment, the deformation of the protective member 6 can be suppressed even if a large load is applied to the protective member 6 without increasing the strength of the protective member 6 itself by means such as thickening the metal wire. This makes it possible to simplify the protective member 6 and reduce the size of the housing while ensuring the safety of the outdoor unit as the air conditioner 100.

That is, in the first embodiment, by making the strong support member 5 that supports the motor 4 function as a part of the protective member 6, the burden on the protective member 6 alone is reduced and the strength of the protective member 6 alone is improved. Since the deformation of the protective member 6 can be suppressed without the need for it, the cost can be reduced. As a result, the space between the protective member 6 and the fan 3a can be reduced, and the size can be reduced and the degree of freedom in design can be increased.

Hereinafter, the configuration of the first embodiment will be described in detail with reference to FIGS. 5 and 6. 5 and 6 show the configuration of the main part of the outdoor unit as the air conditioner 100, but the overall configuration other than the parts shown in FIGS. 5 and 6 is shown in FIGS. 1 to 3. Since they are the same, the same parts will not be described.

As shown in FIGS. 5 and 6, a heat exchanger 2 is provided in the housing 1, and the heat exchanger 2 is a back portion of the housing 1 as in FIGS. 1 to 3. And are provided on both side surfaces. Further, at least a part of the fan (propeller fan) 3a of the blower 3 is provided so as to project above the upper surface of the heat exchanger 2 in the housing 1 and has a cylindrical shape so as to cover the outer peripheral side of the fan 3a. Bellmouth 3b is provided in the same manner as that shown in FIGS. 1 and 2. Further, in this embodiment, a metal cover member 13 is provided on the upper part of the housing 1 so as to cover the outside of the bell mouth 3b.

Further, in this embodiment, a motor 4 for rotating the fan 3a and a support member 5 for supporting the motor 4 are arranged on the downstream side of the fan 3a.
The support member 5 of the motor 4 is a strong beam, and can be easily supported if the load is about the weight of a worker who installs or maintains the air conditioner. In this embodiment, the protective member 6 of the blower 3 is installed at the upper end opening of the bell mouth 3b, and the support member 5 of the motor 4 is arranged in the vicinity of the lower surface (inside) of the protective member 6. The support member 5 is fixed to the upper end side of the metal cover member 13.

In the present embodiment, the support member 5 is composed of two strong beams and a motor mounting plate connecting the two beams, and the motor 4 is fixed to the motor mounting plate. There is. Further, the two beams are fixed to the front side and the back side of the cover member 13. The motor mounting plate may be integrally molded as a part of the motor 4.

Therefore, according to the present embodiment, when the protective member 6 receives a large load and tries to be deformed toward the blower, it is received by the two beams of the support member 5, and the protective member 6 is greatly deformed. Can be prevented. As described above, in this embodiment, the strong support member 5 that supports the motor 4 can function as a part of the protective member 6, and the protective member 6 can be deformed without improving the strength of the protective member 6 alone. It can be suppressed.
The bell mouth 3b shown in FIG. 6 is partially broken, and is shown so that the configuration inside the bell mouth 3b can be understood.

Next, the deformation when the load F is applied to the support member 5 of the motor 4 will be described with reference to the schematic views of the vicinity of the blower shown in FIGS. 7 and 8. Although the protective member 6 of the blower 3 is not shown in FIGS. 7 and 8, the protective member 6 is installed above the support member 5. That is, as shown in FIGS. 5 and 6, a protective member 6 for protecting the blower 3 is provided on the upper portion of the support member 5 of the motor 4, and is fastened to the upper surface of the cover member 13 with screws or the like. .. Therefore, the support member 5 constitutes a part of the protective member 6, and when a large load F is applied to the protective member 6, the protective member 6 is deformed in the same manner as the support member 5. That is, when a large load F is applied to the protective member 6 and the protective member 6 is deformed, the protective member 6 comes into contact with the support member 5 of the motor 4 before coming into contact with the fan 3a. Therefore, when the protective member 6 is significantly deformed, the load escapes to the support member 5, and the deformation of the protective member 6 can be suppressed.

That is, as shown in FIG. 7, in this embodiment, the motor 4 and the support member 5 of the motor 4 are arranged on the upper portion (downstream side) of the fan 3a of the blower 3, so that the support member Even if a large load such as the weight of a worker acts on the protective member 6 of the blower 3 provided on the upper portion of the 5 and the protective member 6 tries to deform downward, the support member 5 receives the load. be able to. Since the strength of the support member 5 is high, as shown in FIG. 8, even if a large load F acts on the support member 5 and the protective member 6, the amount of deformation d1'of them can be suppressed to a small size.

Further, according to the configuration of this embodiment, even if the support member 5 is deformed downward, the blower is fixed to the support member 5, so that the fan 3a is also lowered along with the deflection of the beam (support member 5). The distance between the support member 5 and the fan 3a is kept constant. That is, the distance between the support member 5 and the fan 3a before the support member 5 shown in FIG. 7 is deformed is d3, and the support member 5 and the fan 3a after the support member 5 shown in FIG. 8 is deformed. If the distance of is d3',
d3 = d3'
Will be.

As described above, according to the present embodiment, even if a large load F acts on the protective member 6, the deformation of the protective member can be suppressed, and the protective member 6, the support member 5, and the fan 3a Since the distance can be kept constant, contact between the protective member 6 and the fan 3a can be reliably prevented.

As a result, protection is performed without taking measures such as increasing the diameter of the metal wire or the like constituting the protective member, which has been conventionally implemented in order to ensure safety, or increasing the number of fastening points of the protective member 6. Deformation of the member 6 can be suppressed, the cost of the protective member 6 can be reduced, and the increase in ventilation resistance due to the protective member 6 can be suppressed. Further, since the distance between the protective member 6 and the fan 3a can be reduced, the degree of freedom in design can be increased, and further, it is possible to prevent an operator from accidentally contacting the fan 3a, and safety can be ensured.

(Modification example 1)
Next, a modification 1 of the above-mentioned Example 1 will be described with reference to FIG.
As described above, the present invention has a configuration in which the fan 3a is arranged on the upstream side of the air flow of the motor 4. The fan 3a has a boss portion 3aa on the rotation center side thereof, and a plurality of blades are provided on the outer peripheral surface of the boss portion 3aa in the circumferential direction. Therefore, in this modification 1, the upstream side of the boss portion of the fan 3a is configured as an air flow rectifying member.
That is, in this modification 1, as shown in FIG. 9, the rectifying effect is improved and the blowing resistance can be reduced by forming the upstream side of the boss portion 3aa of the fan 3a in the blower 3 into a convex shape 3ab. It is a thing. In the example shown in FIG. 9, the portion of the convex shape 3ab has a conical shape (cone shape) having a smooth spherical surface. Since the fan 3a is usually a resin molded product made of resin, it is easily possible to mold the upstream side of the boss portion 3aa into a conical shape having a smooth spherical surface.

In this modified example, when the tip (upstream side) of the boss portion 3aa of the fan 3a is simply formed into the convex shape, there is the following problem. That is, when the fans 3a are stacked and stored, as shown in FIGS. 10A and 10B, the stacked height of the fans 3a becomes high, and the stock of parts on the production line becomes a problem. Here, FIG. 10A is a front view showing a state in which the fans shown in FIG. 9 are simply stacked, and FIG. 10B is a cross-sectional view showing only the boss portion of the fan shown in FIG. 10A.

In a general fan, as shown in FIG. 10B, a cylindrical tubular portion 3ac for connecting to the shaft of the motor 4 is provided in the center of the boss portion 3aa, and the tubular portion 3ac is provided. Ribs are provided radially to support it. Therefore, if the convex shape is provided on the boss portion 3aa of the fan 3a, when a plurality of fans 3a are stacked vertically, the upper end portion of one fan and the lower end portion of the other fan are in contact with each other, and the stacked height is increased. It gets higher. In addition, it is unstable in the stacked state, and it is necessary to support the stacked fans so that they do not collapse.

Next, an example devised so that the stacking height of the fan 3a can be lowered will be described with reference to FIGS. 11A and 11B. FIG. 11A is a front view showing a state in which the internal structure of the fan boss portion shown in FIG. 9 is improved and stacked, and FIG. 11B is a cross-sectional view showing only the fan boss portion shown in FIG. 11A.

In this example, as shown in FIG. 11B, the above-mentioned tubular portion 3ac and radial ribs are not provided in the boss portion 3aa, and the fastening portion 3ad for connecting to the shaft of the motor 4 is provided in the boss portion 3aa. It is provided at the center of the convex shape 3ab portion at the tip. The shaft of the motor 4 is coupled to the fastening portion 3ad via a metal reinforcing sleeve (not shown) provided on the fastening portion 3ad.

By manufacturing the fan 3a in this way, as shown in FIGS. 11A and 11B, when a plurality of fans 3a are stacked, the convex shape 3ab portion of the lower fan 3a is the boss portion of the fan 3a above it. Since it enters the 3aa, the stacking height of the fan 3a can be reduced by the amount of the entry. Further, since the boss portion of the fan 3a stacked on top is fitted into the convex shape 3ab portion of the lower fan 3a, it is stable even when a plurality of fans 3a are stacked, so that the support of the stacked fans is unnecessary. Can be done.

In this example, since the boss portion 3aa is formed in a conical shape including the convex shape 3ab portion, the stacking work can be performed more easily and the stability of the stacked fans 3a is also improved. it can.

Further, in the present modification 1, since the convex shape 3ab is provided at the tip (upstream side) of the boss portion 3aa of the fan 3a and the fastening portion 3ad is provided at the center of the convex shape 3ab, the air is blown by the convex shape 3ab. Not only can the resistance be reduced, but also a large space is formed inside the boss portion 3aa, so that the motor 4 of the blower 3 can be installed inside this space.

This example will be described with reference to FIG. 11C. FIG. 11C is a schematic view (cross-sectional view) illustrating an example when the motor is installed in the boss portion of the fan shown in FIG. 11A. As shown in FIG. 11C, all or at least a part of the motor 4 is installed in the boss portion 3aa, and the motor shaft 4a is connected and fixed to the fastening portion 3ad provided at the center of the convex shape 3ab at the tip of the boss portion 3aa. Has been done.

With this configuration, the blower 3 can be made smaller, so that the air conditioner (outdoor unit) can be made smaller.
The configuration other than the above in the above-described modification 1 is the same as that of the above-described first embodiment, and the same effect as that of the first embodiment can be obtained.

(Modification 2)
Next, the modification 2 of Example 1 described above will be described with reference to FIGS. 12 and 13.
The modified example 2 is an example of further improving the modified example 1 described with reference to FIGS. 9, 11A, and 11B. In the second modification, in order to further improve the stability of the fans 3a during stacking, as shown in FIGS. 12 and 13, the convex 3ab portion provided on the tip side (upstream side) of the boss portion 3aa of the fan 3a In the connection portion with the boss portion 3aa of the portion where the blades are provided, the outer diameter of the convex shape 3ab is formed smaller than the outer diameter of the boss portion 3aa, and a step portion 3ae having a width W is provided. Is.
With this configuration, when the fans 3a are stacked, the convex shape 3ab enters the inside of the boss portion 3aa of the other fan 3a, similar to that shown in FIG. 11A. Further, in the present modification 2, since the outer diameter of the convex shape 3ab is reduced to provide the step portion 3ae, the convex shape 3ab completely penetrates into the boss portion 3aa of the other fan 3a. That is, a plurality of fans 3a are superposed and stacked in a state where the lower end portion of the boss portion 3aa of the upper fan 3a is in contact with the stepped portion 3ae of the lower fan 3a.

Therefore, according to the present modification 2, even in a production line having a large stock of fans 3a, the stacking height can be set to the same level as that of the fans 3a (see FIG. 6) without the convex shape 3ab. it can. Further, by reducing the outer diameter of the convex shape 3ab, the stacking work can be performed more easily and the productivity can be improved. Further, similarly to the above-described first modification, the portion of the convex shape 3ab functions as a rectifying member provided in the central portion of the blower 3, so that the blowing resistance can be reduced.
Other configurations are the same as those of the first embodiment and the first modification described above, and the same effect can be obtained.

(Modification 3)
Next, a modification 3 of the above-mentioned Example 1 will be described with reference to FIGS. 14 and 15. FIG. 14 is a schematic view (front view) of the blower showing the third modification of the first embodiment of the present invention, and FIG. 15 is a cross-sectional view illustrating the internal structure of the boss portion of the blower shown in FIG.
In this modification 3, the motor 4 of the blower 3 is provided not only as a general inner motor but also as shown in FIGS. 14 and 15, a central stator 4b and an outer that is provided on the outer periphery of the stator 4b and rotates. It has an outer rotor motor structure composed of a rotor 4c. The outer peripheral portion of the outer rotor 4c is fixed to the boss portion 3aa of the fan 3a, and when the motor 4 is driven, the outer rotor 4c rotates and the fan 3a also rotates.

By using the motor 4 as an outer rotor motor in this way, it is possible to make the magnet of the motor 4 larger, so that the coil winding work can be facilitated and the cost of the motor 4 can be reduced. Further, since the motor 4 can be installed inside the boss portion 3aa of the fan 3a, the blower 3 can be miniaturized, which further improves the degree of freedom in designing the air conditioner (outdoor unit). Therefore, the surplus space created by the miniaturization of the blower 3 can be diverted to the arrangement and expansion of other functional parts.
Other configurations are the same as those of Examples 1 and 1 and 2 described above, and the same effects can be obtained.

(Modification example 4)
Next, a modification 3 of the above-mentioned Example 1 will be described with reference to FIGS. 16 and 17. FIG. 16 is a diagram showing a modified example 4 of the first embodiment of the present invention, and FIG. 17 is a diagram corresponding to FIG. 6, and FIG. 17 is a schematic diagram illustrating a schematic configuration in the vicinity of the blower shown in FIG.
In the first embodiment shown in FIG. 6 and the first modification shown in FIG. 9 described above, the blower 3 is configured to provide a bell mouth 3b on the outer peripheral side of the fan 3a and fix the bell mouth 3b to the upper part of the housing 1. .. On the other hand, in the present modification 4, the bell mouth 3b'is a ring fan 31 integrally fixed to the outer circumference of the fan 3a. Such a ring fan 31 can be easily manufactured by integrally molding the fan 3a and the bell mouth 3b'with a resin.

In this way, the blower is formed by forming a ring-shaped fan having a plurality of blades arranged in the circumferential direction and a bell mouth (ring portion) for connecting the outer peripheral end portions of the plurality of blades in the circumferential direction. It is not necessary to install 3 and the bell mouth 3b separately. Further, there is no possibility that the central axis of the bell mouth 3b'provided integrally on the outer periphery of the fan 3a and the fan 3a is displaced, and the assembling property can be improved.
Other configurations are the same as those of Example 1 and Modifications 1 to 3 described above, and the same effect can be obtained.

Next, Example 2 of the air conditioner of the present invention will be described with reference to FIGS. 18 to 22.
In the first embodiment of the present invention described above, the present invention is applied to a top-blown outdoor unit as an air conditioner, but the present invention can be similarly applied to a side-blown outdoor unit. Hereinafter, an example in which the present invention is applied to a horizontal blowing type outdoor unit as an air conditioner will be described.

First, a general horizontal blowing type air conditioner (outdoor unit) 200 will be described with reference to FIGS. 18 to 20. FIG. 18 is a perspective view illustrating the appearance of a general horizontal blowing type air conditioner (outdoor unit) 200, FIG. 19A is a front view of the air conditioner shown in FIG. 18, and FIG. 19B is an air conditioner shown in FIG. 19C is a side view of the air conditioner shown in FIG. 18, and FIG. 20 is a plan sectional view of the air conditioner shown in FIG.

As shown in these figures, a general horizontal blowing type air conditioner (outdoor unit) 200 has a suction port 1a provided on the back side and one side surface of the housing 1 and a front side of the housing 1. It is provided with an air outlet 1b provided in the housing 1 and a heat exchanger 2 provided from the back surface side to one side surface of the housing 1 and configured in an L shape so as to cover the air outlet 1b. The suction port 1a is provided on the back side and one side surface of the housing 1 according to the shape of the L-shaped heat exchanger 2.

Further, the blower 3 is arranged between the heat exchanger 2 and the air outlet 1b so as to suck air from the suction port 1a, ventilate the heat exchanger 2 and then blow out the air from the air outlet 1b. It is configured in.

Further, as shown in FIG. 20, a support member 5 of the motor 4 is provided on the downstream side of the heat exchanger 2, a motor 4 is attached to the support member 5, and a fan 3a is provided on the downstream side of the motor 4 to provide a motor shaft. It is fixed to 4a to form a blower 3.

The configuration of the air conditioner 200 of the second embodiment will be described with reference to FIG. FIG. 21 is a plan sectional view showing a second embodiment of the air conditioner of the present invention. Also in the second embodiment, the overall configuration of the air conditioner (outdoor unit) 200 is substantially the same as that shown in FIGS. 18 and 19A to 19C, and the description of the same part will be omitted. Further, the point that the blower 3 is arranged on the downstream side of the heat exchanger 2 is the same, but in this embodiment, as shown in FIG. 21, the support member 5 of the motor 4 is the protective member 6 of the blower 3. It is installed close to the upstream side, and the motor 4 is fixed to the support member 5. Further, a fan 3a is arranged on the upstream side of the motor 4, and a boss portion 3aa thereof is connected to the motor 4.

The support member 5 and the protective member 6 are arranged outside the housing 1 and fixed to the housing 1. With this configuration, when a large load acts on the outermost protective member 6 to cause a large deformation, the deformation of the protective member 6 is received by the support member 5, and the protective member 6 The blower 3 can be protected while suppressing deformation.

Further, as in the case of the first embodiment described above, the distance between the protective member 6 and the fan 3a can be reduced, so that a larger space can be secured in the housing 1 and the air conditioner 200 can be miniaturized. Further, the same effect as that of the first embodiment can be obtained, for example, the surplus space can be diverted to the arrangement and expansion of other functional parts.

Further, in the conventional one shown in FIG. 20 described above, since the support member 5 is provided near the heat exchanger 2, there is a possibility that snow or ice blocks may be generated in the vicinity of the support member 5. If snow or ice blocks adhere to the vicinity of the support member 5, the heat of the heat exchanger 2 due to the defrosting operation is difficult to be transferred to the support member 5, so that the snow or ice blocks accumulated on the support member 5 can be easily removed. Can not.

Therefore, in the conventional one, it is necessary to take a certain amount of space between the support member 5 and the heat exchanger 2. On the other hand, in the second embodiment, as shown in FIG. 21, the support member 5 of the motor 4 is not provided in the vicinity of the heat exchanger 2. Therefore, the risk of snow or ice blocks sticking to the support member 5 can be significantly reduced, so that the reliability of the air conditioner (outdoor unit) can be improved.

FIG. 22 is a plan sectional view showing a modification of the above-described second embodiment. The modified example shown in FIG. 22 has a convex shape 3ab on the upstream side of the boss portion 3aa of the fan 3a, similarly to the modified example 1 of the first embodiment described with reference to FIG. Since the suction air can be rectified by the convex shape 3ab, the ventilation resistance can be further reduced.

Further, similarly to the one shown in FIG. 11C, it is possible to install all or at least a part of the motor 4 in the boss portion 3aa of the fan 3a, and if it is configured in this way, the blower 3 can be further miniaturized. Can be planned.
In the air conditioner 200 shown in FIG. 22, other configurations are the same as those in the second embodiment described above, and the same effect can be obtained.

According to each embodiment of the air conditioner of the present invention described above, by providing the motor 4 and its support member 5 on the air blowing side of the fans 3a and 31, the strong support member 5 is provided to the blower 3. Since it is also used as a part of the protective member of the blower that suppresses the deformation of the protective member 6, it is not necessary to prevent the protective member 6 from being significantly deformed and to improve the strength of the protective member 6 itself. Sufficient safety can be ensured while reducing costs.

Further, since the resin molded fan is arranged on the air suction side and the motor for driving the fan is arranged on the downstream side of the fan, the tip of the boss portion of the fan can be convex toward the suction side. it can. As a result, it is possible to obtain an air conditioner that can improve the rectifying effect, reduce the air resistance, and further save energy by reducing the power of the blower.

The present invention is not limited to the above-described examples, and includes various modifications. Further, it is possible to replace a part of the configuration of a certain embodiment with the configuration of another embodiment, and it is also possible to add the configuration of another embodiment to the configuration of a certain embodiment.
Furthermore, the above-described examples have been described in detail in order to explain the present invention in an easy-to-understand manner, and are not necessarily limited to those having all the described configurations.

1 ... Housing, 1a ... Suction port, 1b ... Blowout port, 2 ... Heat exchanger, 3 ... Blower, 3a ... Fan, 3aa ... Boss part, 3ab ... Convex shape (rectifying member), 3ac ... Cylinder part, 3ad ... Fastening part, 3ae ... Step part, 3b, 3b'... Bellmouth, 31 ... Ring fan, 4 ... Motor, 4a ... Motor shaft, 4b ... stator, 4c ... Outer rotor, 5 ... Support member, 6 ... Protective member, 7 ... Electrical box, 8 ... Service cover, 9 ... Bottom base plate, 10 ... Compressor, 11 ... Accumulator, 12 ... Legs, 13 ... Cover member, 20 ... Concrete foundation, 100, 200 ... Air conditioner.

Claims (6)

A housing, a heat exchanger provided in the housing, a blower for ventilating the heat exchanger, a protective member covering the downstream side of the blower, and a support member for fixing the blower to the housing. Prepare,
Wherein the support member, Rutotomoni provided between the protective member and the blower, comprising a beam and motor mounting portion,
The blower includes a fan composed of a plurality of blades and a motor for driving the fan, and the motor is fixed to the support member.
It acts load to the protective member to also suppress the deformation of the entire protective member, the beam of the supporting member supporting the motor, inside the intersecting and the protective member in protective net of the protective member a configuration to function by near Sehhai location so as to suppress the deformation of the entire protective member,
The fan is a ring-type fan driven by the motor, which has a plurality of blades arranged in the circumferential direction and a ring portion for connecting the outer peripheral end portions of the plurality of blades in the circumferential direction. An air conditioner characterized by that. The air conditioner according to claim 1, wherein the fan has a boss portion on the rotation center side thereof, and the upstream side of the boss portion has a convex shape. The air conditioner according to claim 2 , wherein a space is formed inside the boss portion, and at least a part of the motor is installed inside the space. The air conditioner according to claim 2 , wherein a plurality of blades are provided on the outer periphery of the boss portion of the fan, and the convex portion provided on the upstream side of the boss portion and the blades are provided. An air conditioner characterized in that the convex outer diameter is formed smaller than the outer diameter of the boss portion to provide a stepped portion at a connection portion with the boss portion of the portion. The air conditioner according to claim 3 , wherein the motor has an outer rotor motor structure composed of a stator and an outer rotor that is provided on the outer periphery of the stator and rotates, and the motor is installed inside the boss portion. The air conditioner is arranged so that the outer peripheral portion of the outer rotor is fixed to the boss portion, and when the motor is driven, the outer rotor rotates and the fan also rotates. .. The air conditioner according to claim 1 , wherein a suction port provided at least on the back side of the housing, an air outlet provided on the front side of the housing, and at least the back side of the housing. Equipped with the heat exchanger provided
The blower is arranged between the heat exchanger and the air outlet, and is configured to suck air from the suction port, ventilate the heat exchanger, and then blow out the air from the air outlet.
The blower includes a fan composed of a plurality of blades and a motor for driving the fan, the motor is fixed to the support member, and the support member is arranged close to the inside of the protective member. Moreover, the fan has a boss portion on the rotation center side thereof, and the upstream side of the boss portion has a convex shape.

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