JP7250638B2 - Air blower, indoor unit of air conditioner - Google Patents

Description

The present invention relates to a blower and an indoor unit of an air conditioner provided with the blower.

In the blower device, the blower fan and the fan motor are connected by a rotating shaft, and when performing maintenance, the blower fan, the fan motor, and the rotating shaft are attached and detached while being connected. Hereinafter, what is connected with the blower fan, the fan motor, and the rotating shaft will be referred to as a fan connection.

For example, Patent Document 1 discloses that in an air conditioner equipped with a blower device, a bearing attached to a rotating shaft is attached to a support attached to a cabinet in order to facilitate attachment and detachment of a fan connection. A temporarily fixed configuration is described. According to this, an L-shaped locking claw is provided at the lower end of the support plate that supports the bearing of the bearing, and a locking hole for locking the locking claw is provided in the supporting portion of the support. The bearing is temporarily fixed to the support by inserting the support plate of the bearing from above into the insertion hole formed in the support portion of the support and locking the locking claw in the locking hole. After that, the screw holes are aligned and the bearing and the support are screwed together.

JP 2012-97930 A

In the case of a ceiling-mounted type, the construction for attaching and detaching the fan connection from above the air blower requires work behind the ceiling. In addition, in the wall-mounted type, a space is required between the upper surface of the air conditioner and the ceiling to allow removal of the fan-connected article. If it is installed near the ceiling, it will be difficult to take it out.

In addition, if the air blower is to be attached and detached from the side, if it is a ceiling-mounted type, work behind the ceiling is required in the same way as detaching from above. In the wall-mounted type, a space is required on the side where the side plate is opened so that the fan connection can be taken out. If there is a ceiling beam or the like close to the side, it will be difficult to take out. In addition, attachment and detachment from the side is possible as long as one ventilation fan is connected to a fan motor using a cross-flow fan or the like. However, in a configuration in which a plurality of blowing fans such as a sirocco fan are connected to a fan motor, the casing provided for each blowing fan becomes an obstacle, making detachment itself impossible.

On the other hand, there is an open space below the blower regardless of whether it is a wall-mounted type or a ceiling-mounted type. Therefore, by adopting a configuration in which it is attached and detached from below, it is possible to do so without the need for work behind the ceiling, and even if there is not enough space between the ceiling and the sides.

However, when attaching and detaching from below, since there is nothing to support the fan connection, when the worker works alone, the fan connection with the bearing tool aligned with the support must be held with one hand. However, it is necessary to tighten the screws with the other hand, which is a very difficult task.

Note that the configuration described in Patent Document 1 is based on the premise that the fan connection is attached and detached from above the blower. The weight of the fan connection may cause the locking claw to fall out of the locking hole.

An object of one aspect of the present invention is to realize a blower in which a fan connection can be easily attached and detached from below the blower.

In order to solve the above problems, a blower device according to an aspect of the present invention is a blower device comprising a cabinet, a motor detachable from the cabinet, a rotating shaft for transmitting the driving force of the motor, and A fan connection that connects a blower fan fixed to the rotating shaft, a bearing attached to the rotating shaft, and a fixing portion provided in the cabinet to which the bearing is fixed, The bearing portion includes a bearing member that rotatably supports the rotating shaft, and a support member that supports the bearing member and has an engaging fixing piece. The fan connector includes an insertion portion inserted from below the device, and an engagement receiving portion that engages with the engagement fixing piece in a state in which the bearing portion is inserted into the insertion portion. The fixing piece is fixed to the cabinet by engaging with the engagement receiving portion.

ADVANTAGE OF THE INVENTION According to one aspect of the present invention, it is possible to realize a blower device in which a fan connection can be easily attached and detached from below the blower device.

FIG. 2 is a perspective view of the blower device according to Embodiment 1 of the present invention, with the front side having a blowout opening facing forward. be. It is a perspective view which shows the state which removed the components by the side of the lower surface from the said air blower, and has turned the front side which has a blow-off opening upward. It is a front view of the fan connection thing removed from the said air blower. It is a longitudinal cross-sectional view of the said air blower. FIG. 4 is a perspective view of a bearing attached to the end of the rotating shaft of the fan connector; It is explanatory drawing which shows the state with which the said bearing part is mounted|worn with the fixing|fixed part provided in the cabinet. It is the perspective view which looked at the part with which the said bearing part is mounted|worn with the fixing|fixed part provided in the cabinet from the lower surface side. It is a longitudinal cross-sectional view which shows the state with which the said bearing part was mounted|worn with the fixing|fixed part provided in the cabinet. It is a perspective view of the bearing part of the modification attached to the end part of the rotating shaft of the said fan connection thing. It is explanatory drawing which shows the state with which the said bearing part of the modification was mounted|worn with the fixing|fixed part provided in the cabinet. FIG. 7 is a perspective view of an indoor unit of an air conditioner according to Embodiment 2; It is a cross-sectional perspective view which shows the internal structure of the said indoor unit.

[Embodiment 1]
An embodiment of the present invention will be described in detail below. In this embodiment, an air blower mounted on an indoor unit of an air conditioner is exemplified.

(Structure of blower 1)
FIG. 1 is a perspective view of the blower device 1 according to Embodiment 1, with the front side having the blowout opening 53 facing forward. FIG. 2 is a perspective view showing a state in which parts on the lower surface side are removed from the air blower 1, and the front side having the blowout opening 53 faces upward. 2, the front side having the blowout opening 53 faces upward. FIG. 3 is a front view of the fan connection 2 removed from the air blower 1. FIG. FIG. 4 is a longitudinal sectional view of the air blower 1. As shown in FIG.

As shown in FIGS. 1 and 2, the blower device 1 has a cabinet 10 and four blower fans 4 and one fan motor (motor) 3 arranged in the cabinet 10 along the longitudinal direction. The fan motor 3 is a double shaft motor, and is positioned at the center of the four blower fans 4 arranged side by side, and two blower fans 4 are connected to one motor shaft 3a.

As shown in FIG. 2, the blower fan 4 is a so-called sirocco fan having a structure in which two impellers 4a are connected by one common disk wall 4b. A joint member 5 for fixing the blower fan 4 to the rotary shaft is provided at the center of the disk wall 4b so as to protrude on both sides. The four blowing fans and the fan motor 3 are connected (integrated) via a joint member 5 and shaft members 6 and 7 forming a rotation shaft to form a fan connection 2 .

As shown in FIG. 3, the motor shafts 3a on both sides of the fan motor 3 are connected to the joint members 5 on the fan motor 3 side of the two blowing fans 4 positioned next to the fan motor 3. As shown in FIG. One end side of the shaft member 6 is connected to the joint member 5 on the side opposite to the fan motor 3 side of the two blower fans 4, and the other end side of the shaft member 6 is positioned next to each other. A joint member 5 on the fan motor 3 side of the blower fan 4 is connected. One end side of the shaft member 7 is connected to the joint member 5 of the two blower fans 4 located next to each other on the side opposite to the fan motor 3 .

The connection between the motor shaft 3a and the shaft members 6 and 7 and the joint member 5 of the blower fan 4 is screwed with the ends of the motor shaft 3a and the shaft members 6 and 7 inserted into the joint member 5. . By firmly connecting them by screwing, the rotational force of the fan motor 3 can be transmitted to the plurality of blower fans 4 without misalignment. A shaft composed of the motor shaft 3a, shaft members 6 and 7, and a plurality of joint members 5 is hereinafter referred to as a rotation shaft 8. As shown in FIG. The rotating shaft 8 transmits the driving force of the fan motor 3 .

A bearing portion 20 is attached to the other end side of each shaft member 7 corresponding to both end portions of the rotating shaft 8 . The bearing 20 rotatably receives the end of the rotating shaft 8 and allows the fan coupling 2 to be attached to the cabinet 10 of the blower 1 . The bearing portion 20 is detachably attached to a fixing portion 30 provided on the cabinet 10, as will be described later.

Further, as shown in FIGS. 1 and 3, each blower fan 4 is housed in a casing 11 provided for each fan. The casing 11 is provided with circular suction ports 11a on both sides in the axial direction of the cylindrical blower fan 4, and has a rectangular outlet 11c at the tip of a projecting bell mouth 11b. The outlet 11 c is connected to the outlet opening 53 .

In this embodiment, as shown in FIG. 1, the casing 11 is divided into an upper casing 11-1 covering the upper half of the blower fan 4 and a lower casing 11-2 covering the lower half of the blower fan 4. As shown in FIG. The motor cover 12 that fixes the fan motor 3 is also divided into an upper motor cover 12-1 that covers the upper half of the fan motor 3 and a lower motor cover 12-2 that covers the lower half of the fan motor 3. FIG.

Among them, the four upper casings 11-1 and the upper motor cover 12-1 are formed integrally with the cabinet 10. As shown in FIG. In other words, the four upper casings 11-1, the upper motor cover 12-1, and the cabinet 10 are made of the same resin material, and are molded by pouring the resin material into one mold. Furthermore, a part of an outer shell component 13 forming the outer shell of the blower device 1 is provided integrally with the lower casing 11-2.

(Configuration of bearing portion 20 and fixed portion 30)
FIG. 5 is a perspective view of the bearing 20 attached to the end of the rotating shaft 8 of the fan connecting member 2. As shown in FIG. 5 shows the surface of the fan motor 3 into which the end of the rotating shaft 8 is inserted. As shown in FIG. 5 , the bearing portion 20 includes a bearing member 21 that rotatably supports the rotating shaft 8 , a support member 22 that supports the bearing member 21 , and is arranged between the bearing member 21 and the support member 22 . and a rubber portion 23 for absorbing vibration. The bearing member 21 has a low-friction and low-wear sliding surface on which the rotating shaft 8 slides.

The support member 22 is divided into a first support member 24 on the side of the fan motor 3 and a second support member 25 on the opposite side to the fan motor 3 on a plane orthogonal to the rotating shaft 8 . The first support member 24 and the second support member 25 are connected by hinges 26 so as to be openable and closable. The bearing member 21 is sandwiched between the first support member 24 and the second support member 25 while being covered with the rubber portion 23 . A fitting portion (not shown) corresponding to the outer shape of the rubber portion 23 is formed on the inner side surfaces of the first support member 24 and the second support member 25 .

Further, the support member 22 has a convex portion 22a on the head corresponding to the front side in the mounting direction when the fan connecting member 2 is mounted on the cabinet 10 . The lower end of the convex portion 22a forms an inclined curved surface 22b that is rounded and inclined in the front-rear direction and is connected to the front surface 22c and the rear surface 22d. Temporary fixing hooks 27 for temporarily fixing the bearing portion 20 to the cabinet 10 are formed on the front surface 22 c and the rear surface 22 d so as to protrude outward in the direction away from the support member 22 .

The temporary fixing hook 27 is formed with an engagement fixing piece 27a projecting outward in a direction away from the support member 22 . The engaging fixing piece 27a is formed in a claw shape, and is snap-fitted to an engagement receiving portion 33 (described later) formed in the fixing portion 30 in a state in which the bearing portion 20 is inserted into the fixing portion 30 on the side of the cabinet 10. engage. In other words, the engagement fixing piece 27a and the engagement receiving portion 33 are provided at two locations facing each other across the rotation shaft 8 in a plan view.

An operating portion 27b used when releasing the engagement between the engaging and fixing piece 27a and the engagement receiving portion 33 is formed on the lower side of the engaging and fixing piece 27a of the temporary fixing hook 27. As shown in FIG. By gripping the operating portions 27b of the temporary fixing hooks 27 formed on the front surface 22c and the rear surface 22d of the support member 22 with fingers, the respective engaging fixing pieces 27a are moved inwardly toward the support member 22. Move to disengage.

FIG. 6 is an explanatory diagram showing a state in which the bearing 20 is attached to the fixed portion 30 provided on the cabinet 10. As shown in FIG. FIG. 7 is a perspective view of a portion where the bearing portion 20 is attached to the fixing portion 30 provided on the cabinet 10, viewed from the bottom side. FIG. 8 is a vertical cross-sectional view showing a state in which the bearing 20 is attached to the fixed portion 30 provided on the cabinet 10. As shown in FIG.

As shown in FIG. 6, a fixing portion 30 for fixing the bearing portion 20 is provided at the end portion 10a of the cabinet 10 in the longitudinal direction. The fixed portions 30 are provided at both ends 10a of the cabinet 10 in the longitudinal direction.

As shown in FIGS. 7 and 8 , the fixed portion 30 includes an insertion portion 31 into which the bearing portion 20 is inserted from below the blower 1 and an engagement fixing piece in a state in which the bearing portion 20 is inserted into the insertion portion 31 . An engagement receiving portion 33 that engages with 27a is provided. The insertion portion 31 has a hole shape with an open bottom side, and the engagement receiving portions 33 are provided on the front and rear hole walls inside the insertion portion 31 .

The inside of the insertion portion 31 has a shape corresponding to the outer shape of the bearing portion 20 . The convex portion 22a of the bearing portion 20 is accommodated in the concave portion 31a. The front and rear inclined curved surfaces 22b of the bearing portion 20 and the front and rear surfaces 22c and 22d connected thereto are accommodated in a U-shaped wall portion 31c having a recess 31a in the center in the front-rear direction. Although not shown, the insertion portion 31 is provided with a wall portion that restricts movement of the bearing portion 20 along the axial direction of the rotation shaft 8 in a direction orthogonal to the rotation shaft 8 .

An engagement receiving portion 33 with which the engagement fixing piece 27a engages is provided at a position corresponding to the temporary fixing hook 27 formed on the bearing portion 20 in the lower portion of the U-shaped wall portion 31c inside the insertion portion 31. there is The engagement receiving portion 33 is formed as a hole into which the claw-shaped engaging and fixing piece 27a is inserted, and the lower end surface of the engaging and fixing piece 27a is received by the vertically upward engaging surface 33a.

The engaging fixing piece 27a is biased in the direction of entering the inner side of the engaging receiving portion 33 in a state in which it is engaged with the engaging receiving portion 33, so that the fan connecting member 2 falls even if the hand is released. It is fixed in the state of not doing it.

Then, as shown in FIG. 7, in a state in which the bearing portion 20 is inserted into the insertion portion 31 with the lower end portion left, the operating portion 27b on the lower side of the temporary fixing hook 27 is visible. Further, a screw hole 29 for screwing the bearing portion 20 to the fixing portion 30 from the lower surface side is formed in a visible portion, and a , screw holes 35 (see FIG. 6) are formed.

(Removal and attachment of fan connecting object 2)
Next, attachment/detachment of the fan connector 2 to/from the cabinet 10 will be described with reference to FIGS. 1, 2, and 6 to 8. FIG. First, the removal of the fan connecting member 2 will be described.

When removing the fan connecting member 2, first, four lower casing parts 11-2, one motor cover lower part 12-2, and outer shell part 13 located on the lower surface side of the blower 1 (Fig. 1) is removed to put the fan connection 2 in a detachable state as shown in FIG. Since a part of the outer shell part 13 is provided integrally with the lower casing 11-2, it can be removed together by removing the lower casing 11-2.

Next, at both ends of the fan connecting member 2, screws (not shown) screwing the bearings 20 and the fixing portions 30 on the cabinet 10 side are removed. In this state, the engaging fixing piece 27a of the temporary fixing hook 27 is engaged with the engaging receiving portion 33 of the fixing portion 30 to be temporarily fixed. Therefore, even if the screw fastening on both sides of the fan connecting member 2 is released, the fan connecting member 2 does not drop due to its own weight, and there is no need for the operator's hand.

In particular, in the above configuration, the engagement fixing piece 27a and the engagement receiving portion 33 are provided at two locations (two front and rear locations) facing each other across the rotation shaft 8 in a plan view. Therefore, the load applied to the engaging fixing piece 27a and the engaging receiving portion 33 can be made smaller than the configuration in which only one engaging fixing piece 27a and one engaging receiving portion 33 are provided.

Next, with one hand, put a finger on the front and rear operation portions 27b of the temporary fixing hook 27 of the bearing portion 20 on one side and bend it inward, so that the engagement fixing piece 27a and the engagement receiving portion 33 are engaged. Similarly, the other hand releases the engagement between the engaging fixing piece 27a and the engaging receiving portion 33 on the other side. Then, in the disengaged state, the bearing portion 20 is extracted from the insertion portion 31 of the fixing portion 30 .

Since the operation portion 27b is provided, the operation of releasing the engagement between the engagement fixing piece 27a and the engagement receiving portion 33 can be easily performed. Further, since the operation portion 27b is visible when the bearing portion 20 is inserted into the insertion portion 31, the operator can easily recognize the operation portion 27b when removing. As a result, the fan connecting member 2 can be easily removed from below the blower device 1 by one person.

On the other hand, at the time of mounting, first, both ends of the fan connecting member 2 are grasped, and the bearing portion 20 is inserted into the insertion portion 31 of the fixing portion 30 from the head side having the convex portion 22a. At this time, the bearing portion 20 is pushed deep into the insertion portion 31 until the engagement fixing piece 27a of the bearing portion 20 enters and engages with the engagement receiving portion 33 of the fixing portion 30 and a "click" sound is generated. Plug in. Since the engaging fixing piece 27a and the engaging receiving portion 33 are snap-fitted, the engagement is completed only by inserting the bearing portion 20 into the inserting portion 31 of the fixing portion 30. FIG.

After confirming the engagement between the engagement fixing piece 27a and the engagement receiving portion 33, the screw hole 29 of the bearing portion 20 is aligned with the screw hole 35 of the fixing portion 30, and the bearing portion 20 is screwed to the fixing portion 30. do. As a result, the fan connecting member 2 can be easily attached from below the blower device 1 by one person.

After that, four lower casing parts 11-2, one motor cover lower part 12-2, outer shell parts 13, and other lower surface parts (see FIG. 1) are attached to the lower surface side of the blower device 1. FIG. Since a part of the outer shell part 13 is provided integrally with the lower casing 11-2, they can be attached together by attaching the lower casing 11-2.

(Modification)
In the blower device 1 of the above-described embodiment, the fan connection 2 is attached to the cabinet 10 by engaging the engagement fixing piece 27a with the engagement receiving portion 33, even if the hand is released from the fan connection 2. It is temporarily fixed in a state where it does not fall. After that, the bearing portion 20 is screw-fastened to the fixing portion 30 using the screw holes 35 and the screw holes 29 so as to be permanently fixed. Therefore, the fixation by the engagement between the engagement fixation piece 27a and the engagement receiving portion 33 is called temporary fixation. However, even if the bearing portion 20 is not separately screwed to the fixed portion 30, if it is possible to prevent disengagement due to vibration of the fan connecting member 2 during rotation and to absorb rattling caused by the vibration, it is possible to engage the bearing portion 20. Fixation by engagement between the fixing piece 27a and the engagement receiving portion 33 may be defined as the permanent fixation.

Further, the engagement between the engagement fixing piece 27a and the engagement receiving portion 33 is a snap fit. Therefore, the bearing portion 20 can be engaged only by inserting it into the insertion portion 31 of the fixed portion 30 . However, it is not limited to snap fit.

Moreover, the structure which provides the engagement fixed piece 27a and the engagement receiving part 33 in two locations (two front and rear locations) facing each other across the rotation shaft 8 in a plan view is illustrated. On the other hand, as shown in FIGS. 9 and 10, the engagement fixing piece 27a and the engagement receiving portion 33 may be provided at positions overlapping the rotating shaft 8 in plan view.

FIG. 9 is a perspective view of a modified bearing 20A attached to the end of the rotary shaft 8 of the fan connecting member 2. As shown in FIG. Note that FIG. 9 shows the surface on the side opposite to the fan motor 3 . As shown in FIG. 9, in the bearing portion 20A, a cantilever-shaped hook 37 is formed on the surface of the support member 22A facing away from the fan motor 3 when fixed to the fixing portion 30A. An engaging fixing piece 27a is formed on the corresponding upper portion.

As shown in FIG. 10, the fixing portion 30A provided at the end portion 10a of the cabinet 10 is formed with an engagement receiving portion 33 with which the engaging fixing piece 27a of the bearing portion 20A inserted into the insertion portion 31A engages. It is

In such a configuration, when removing, the cantilever type hook 37 is closed against the biasing force to release the engagement between the engaging fixing piece 27a and the engaging receiving portion 33, thereby releasing the bearing portion 20A. is extracted from the insertion portion 31A. At the time of attachment, the bearing portion 20A is inserted into the insertion portion 31A by closing the cantilever type hook 37 against the urging force, and the engagement fixing piece 27a enters the engagement receiving portion 33 to engage. Insert it all the way in until you hear a clicking sound.

[Embodiment 2]
Other embodiments of the invention are described below. For convenience of description, members having the same functions as those of the members described in the above embodiments are denoted by the same reference numerals, and description thereof will not be repeated.

In this embodiment, an indoor unit of an air conditioner provided with the blower device 1 described in Embodiment 1 will be described. 11 is a perspective view of the indoor unit 50 of the air conditioner according to Embodiment 2. FIG. FIG. 12 is a cross-sectional perspective view showing the internal structure of the indoor unit 50. As shown in FIG.

As shown in FIGS. 11 and 12, the indoor unit 50 has the cabinet 10 and the fan connection 2 that constitute the air blower 1 described above, and has a heat exchanger 51 in front of the fan connection 2. . A suction opening 52 is provided in the upper surface of the cabinet 10 and a filter 54 is installed in the suction opening 52 .

An opening on the front surface of the cabinet 10 serves as a blowout opening 53 . A plurality of air outlets 11 c of the casing 11 corresponding to the plurality of blower fans 4 are connected to the air outlet 53 . The heat exchanger 51 is arranged between the outlet 11 c and the outlet 53 .

The heat exchanger 51 is arranged in an inclined state such that the upper portion thereof is positioned forwardly of the lower portion thereof, and the lower portion thereof is arranged in a state in which it is adjacent to the blower fan 4 . By arranging the heat exchanger 51 in an inclined state, it is possible to widen the surface area while suppressing the height of the indoor unit 50 compared to the case where it is arranged in a vertical state. A drain pan 55 for receiving water (drain water) generated by heat exchange in the heat exchanger 51 is provided below the heat exchanger 51 .

A main panel 56 for opening and closing the blowout opening 53 is provided on the front surface of the cabinet 10 . The main panel 56 is formed in a plate shape gently curved between the upper edge and the lower edge. The direction of curvature of the main panel 56 is the direction in which it becomes concave when viewed from the front. The main panel 56 is driven by, for example, a drive mechanism (not shown) having two left and right arms for supporting the main panel 56 and a motor. The main panel 56 closes the blowout opening 53 when the indoor unit 50 is stopped, and opens it during operation.

In the drawing, a member denoted by reference numeral 57 is a sub-panel, and the sub-panel 57 is also opened during operation. The main panel 56 is normally in a state in which the upper side is opened with the lower end side as a rotation axis during cooling (the state shown in FIGS. 1 and 2), and in the heating mode, the lower side is normally opened with the upper end side as the rotation axis. becomes.

In the first and second embodiments, the example of the sirocco fan has been described as the blower fan of the blower device 1, but the invention is not limited to this, and the present invention can also be applied to a cross-flow fan. can be done.

〔summary〕
A blower device 1 according to aspect 1 of the present invention is a blower device 1 comprising: a cabinet 10; a motor (fan motor 3) detachable from the cabinet 10; and a fan connection 2 formed by connecting a blower fan 4 fixed to the rotating shaft 8; a bearing portion 20 attached to the rotating shaft 8; The bearing portion 20 includes a bearing member 21 that rotatably supports the rotating shaft 8, and a support member 22 that supports the bearing member 21 and has an engaging fixing piece 27a. , the fixing portion 30 includes an insertion portion 31 into which the bearing portion 20 is inserted from below the blower device 1, and the engagement fixing piece in a state in which the bearing portion 20 is inserted into the insertion portion 31. and an engagement receiving portion 33 that engages with the fan connection 27a. Characterized by

In the blower device 1 according to aspect 2 of the present invention, in aspect 1, the engagement between the engaging fixing piece 27a and the engaging receiving portion 33 may be snap fit.

In the blower device 1 according to aspect 3 of the present invention, in aspect 1 or 2, the engaging fixing piece 27a and the engaging receiving portion 33 are arranged to face each other across the rotating shaft 8 in a plan view. It can also be configured to be provided at a location.

In the blower device 1 according to aspect 4 of the present invention, in any one of aspects 1 to 3, the engaging fixing piece 27a and the engaging receiving portion 33 are engaged with each other on the lower end side of the supporting member 22. It is also possible to adopt a configuration in which an operation portion 27b for releasing is provided.

In the blower 1 according to the fifth aspect of the present invention, in the fourth aspect, the operation portion 27b may be configured to be visible from below the blower 1 when the fan connecting member 2 is attached or detached.

The blower device 1 according to aspect 6 of the present invention, in any one of aspects 1 to 5, may be configured such that the blower fan 4 is a sirocco fan and the fan connection 2 is provided with a plurality of sirocco fans. can.

An indoor unit 50 for an air conditioner according to aspect 7 of the present invention is characterized by including the blower device 1 according to any one of aspects 1 to 6.

The present invention is not limited to the above-described embodiments, but can be modified in various ways within the scope of the claims, and can be obtained by appropriately combining technical means disclosed in different embodiments. is also included in the technical scope of the present invention. Furthermore, new technical features can be formed by combining the technical means disclosed in each embodiment.

1 Blower 2 Fan connection 3 Fan motor (motor)
3a Motor shaft 4 Blower fan 8 Rotating shaft 10 Cabinet 10a End 11 Casing 20, 20A Bearing 21 Bearing member 22 Supporting member 23 Rubber part 27 Temporary fixing hook 27a Engagement fixing piece 27b Operation part 30, 30A Fixing part 31, 31A Insertion portion 33 Engagement receiving portion 33a Engagement surface 50 Indoor unit 51 Heat exchanger 52 Suction opening 53 Blow-out opening

Claims (7)

A blower,
a cabinet, a fan connector that is detachable from the cabinet and includes a motor, a rotary shaft that transmits the driving force of the motor, and a blower fan that is fixed to the rotary shaft;
a bearing attached to the rotating shaft;
a fixing portion provided in the cabinet to which the bearing portion is fixed;
The bearing portion
a bearing member that rotatably supports the rotating shaft;
a support member that supports the bearing member and has an engaging fixing piece,
The fixed part is
an insertion portion into which the bearing portion is inserted from below the blower;
an engagement receiving portion that engages with the engagement fixing piece in a state in which the bearing portion is inserted into the insertion portion;
A blower device, wherein the fan connecting member is fixed to the cabinet by engaging the engaging fixing piece with the engaging receiving portion. 2. The blower device according to claim 1, wherein the engagement between the engaging fixing piece and the engaging receiving portion is a snap fit. 3. The blower device according to claim 1, wherein the engaging fixed piece and the engaging receiving portion are provided at two locations facing each other across the rotating shaft in a plan view. 4. The apparatus according to any one of claims 1 to 3, wherein an operation portion for releasing the engagement between the engagement fixing piece and the engagement receiving portion is provided on the lower end side of the support member. blower. 5. The blower device according to claim 4, wherein the operation portion is visible from below the blower device when the fan connecting member is attached or detached. The blower fan is a sirocco fan,
6. A blower device as claimed in any preceding claim, wherein the fan connection comprises a plurality of sirocco fans. An indoor unit of an air conditioner comprising the air blower according to any one of claims 1 to 6.

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