JP2004278995A - Fan motor mounting structure and air-conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a fan motor mounting structure having great vibration damping effects and positively taking vibration damping measures by preventing the auto rotation of a fan motor in the opposite direction. <P>SOLUTION: In the fan motor mounting structure using a fastening member in mounting the fan motor 10 on a device body, the fan motor 10 is mounted on a mounting plate 12 via a well nut 11 formed of a vibration damping rubber and the mounting plate 12 is mounted on the device body via a vibration damping rubber 13 formed of a vibration damping rubber. A first screw 17 and a second screw 25 and a collar 30 are provided in the well nut 11 and in the vibration damping rubber 13, respectively. The fan motor 10 and the mounting plate 12 are controlled not to be rotated around a rotating shaft 14 of the fan motor 10. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fan motor mounting structure for mounting a fan motor to an apparatus main body in an air conditioner or the like, and an air conditioner employing the fan motor mounting structure.
[0002]
[Prior art]
Generally, an air conditioner has a fan that draws in indoor air and heats it to blow it into the room (heating operation) or exhaust it to the outside of the building (ventilation operation), and a fan motor to rotate this fan. Is provided.
[0003]
Conventionally, a fan motor mounting structure as shown in FIG. 8 has been known for mounting a fan motor on an air conditioner body. In this fan motor mounting structure, a plurality of holes 1A are provided at equal intervals in a circumferential direction in a ring-shaped vibration isolating rubber 1, and a collar 2 is inserted into each hole 1A. Further, mounting holes 3A are formed at a plurality of locations in the fan motor 3, and screws 4 passed through the mounting holes 3A are inserted into the collar 2 and further screwed into the screw holes 4A of the apparatus body.
[0004]
However, in this fan motor mounting structure, the fan motor 3 is mounted on the main body of the apparatus using only the ring-shaped anti-vibration rubber 1 and using the screw 4 and the collar 2. The vibration was transmitted to the apparatus main body via the collar 2, and the anti-vibration effect could not be expected much.
[0005]
Therefore, a fan motor mounting structure as shown in FIG. 9 has been considered. In this fan motor mounting structure, circular anti-vibration rubbers 6 and 7 are provided on the upper and lower surfaces of the fan motor 5, and the fan motor 5 and the anti-vibration rubbers 6 and 7 are housed in the motor mounting cases 8A and 8B. I have. The motor mounting cases 8A and 8B have a split shape, and are integrated with the fan motor 5 and the anti-vibration rubbers 6 and 7 from right and left. Then, screws 9 are inserted into a plurality of mounting holes 8C formed in the motor mounting cases 8A and 8B, and each screw 9 is screwed into a screw hole of an apparatus main body (not shown). Various types of fan motor mounting structures of this type have been conventionally proposed (for example, see Patent Document 1).
[0006]
In the above fan motor mounting structure, the vibration isolating rubbers 6 and 7 are interposed between the fan motor 5 and the motor mounting cases 8A and 8B, so that the vibration of the fan motor 5 is not directly transmitted to the apparatus main body. The anti-vibration effect is exhibited.
[0007]
[Patent Document 1]
JP-A-8-331803
[Problems to be solved by the invention]
However, according to the above-described conventional technology, the fan motor 5 is pressed and fixed from both sides of the shaft portions 6A, 7A and the disk portions 6B, 7B of the vibration isolating rubbers 6, 7 on the inner wall surfaces of the motor mounting cases 8A, 8B. Due to the structure, the dimensional accuracy of the diameters of the shaft portions 6A and 7A of the vibration isolating rubbers 6 and 7 and the thickness of the disk portions 6B and 7B is required, and the vibration isolating rubbers 6 and 7 are worn and the fan motor 5 May rotate in the reverse direction due to its own rotational force, and the frictional resistance with the vibration isolating rubbers 6 and 7 may decrease depending on the tightening state of the screw 9, so that the position of the fan motor 5 is not stabilized. On the contrary, there is a problem that vibration and noise are generated.
[0009]
SUMMARY OF THE INVENTION It is an object of the present invention to provide a fan motor mounting structure capable of more reliably taking measures against vibrations, and an air conditioner employing the fan motor mounting structure.
[0010]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, an invention according to claim 1 is a fan motor mounting structure for mounting a fan motor to an apparatus main body via a fastening member, wherein the fan motor is connected via a first vibration isolation member. It is attached to an attachment member, and the attachment member is attached to the device main body via a second vibration isolation member.
[0011]
According to the above configuration, since the fan motor is mounted on the main body of the apparatus by the double vibration-proof structure including the first vibration-proof member and the second vibration-proof member, vibration and noise are reduced, and large vibration-proof is achieved. A vibration effect is obtained.
[0012]
A second aspect of the present invention is characterized in that, in the first aspect, a rotation regulating member that regulates rotation of the mounting member and the fan motor about a rotation axis of the fan motor is provided.
[0013]
According to the above configuration, since the rotation restricting member is provided, the position of the fan motor is stabilized, and it is possible to more reliably take measures against vibration.
[0014]
According to a third aspect of the present invention, in the first aspect, the rotation restricting member is inserted into the first vibration isolating member, and a first fastening member that fastens the fan motor and the mounting member; It is a second fastening member that is inserted into the second vibration isolation member and fastens the mounting member and the apparatus body.
[0015]
According to the above configuration, since the fan motor and the mounting member are fastened by the first fastening member, they do not rotate in opposite directions about the rotation axis of the fan motor. Since the member is inserted into the first vibration isolating member, the vibration isolating effect does not decrease. Further, since the mounting member and the apparatus main body are fastened by the second fastening member, they do not rotate in opposite directions about the rotation axis of the fan motor as described above. Is inserted into the second vibration isolating member, so that the vibration isolating effect does not decrease.
[0016]
Claim 4 is an invention of a fan motor unit. That is, the invention according to claim 4 is a fan motor unit attached to the apparatus main body using a fastening member, comprising a fan motor and an attachment member attached to the fan motor via an anti-vibration member. The vibration damping member is provided with a rotation restricting member that restricts the fan motor and the mounting member from rotating in opposite directions about the rotation axis of the fan motor. .
[0017]
By using the fan motor unit, it is sufficient to replace the fan motor when replacing the fan motor, and the maintenance performance is good.
[0018]
Claim 5 is an invention of an air conditioner. That is, an invention according to claim 5 is an air conditioner including a fan that circulates and / or exhausts indoor air and a fan motor that rotationally drives the fan, wherein the fan motor is configured as claim 1. The fan motor is attached to the apparatus main body by the fan motor attachment structure according to any one of (1) to (3).
[0019]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(Embodiment 1)
FIG. 1 shows a fan motor mounting structure according to the first embodiment. As shown in FIG. 1, the fan motor mounting structure includes a fan motor 10, three well nuts 11 as first vibration isolating members, a mounting plate 12, and a ring-shaped second vibration isolating member. And an anti-vibration rubber 13.
[0020]
The fan motor 10 has a rotating shaft 14 at the center thereof, and a circular anti-vibration rubber 15 is inserted in the middle of the rotating shaft 14. The anti-vibration rubber 15 is not fixed to the rotating shaft 14 and can rotate freely. The fan motor 10 has a cylindrical shape, and brackets 16 are provided at three places (only two places are shown in the figure) at 120 ° intervals below the outer peripheral surface, and holes 16A are formed in these brackets 16. . A small binding screw 17 is inserted into the hole 16A as a first fastening member (first screw).
[0021]
As shown in FIG. 2, the well nut 11 has a cylindrical body 18 and a circular head 19 provided on the upper surface of the body 18, and the body 18 and the head 19 are protected. It is made of vibration rubber. A nut 20 is embedded in the lower portion of the body 18, and a ring-shaped washer 21 is embedded in the head 19. The bind screw 17 is inserted through the washer 21.
[0022]
The mounting plate 12 as a mounting member is made of metal or resin, has a circular shape as shown in FIG. 1, and has a through hole 22 formed in the center thereof. The inner diameter of the through hole 22 is formed to be slightly smaller than the outer diameter of the vibration-proof rubber 15 inserted into the rotating shaft 14 of the fan motor 10.
[0023]
Further, through holes 23 are formed in the mounting plate 12 at three positions slightly inward of the periphery at intervals of 120 degrees, and the body 18 of the well nut 11 is inserted into these through holes 23. Further, substantially semicircular cuts 24 are formed in the mounting plate 12 at the peripheral edge thereof at four locations, and bind P tight screws 25 are passed through these cuts 24 as second fastening members (second screws). Is done.
[0024]
The anti-vibration rubber 13 has a ring shape substantially equal to the outer diameter of the mounting plate 12, and is entirely formed of anti-vibration rubber. In addition, four convex portions 26 are provided on the upper surface of the vibration-proof rubber 13, and these convex portions 26 are formed at positions matching the cuts 24 of the mounting plate 12. As shown in FIG. 3, the convex portion 26 has a small-diameter portion 27 and a large-diameter portion 28 provided above the small-diameter portion 27, and includes the large-diameter portion 28, the small-diameter portion 27, and the vibration-proof rubber 13 main body. , A through hole 29 is formed. A small cylindrical collar 30 is inserted into the through hole 29.
[0025]
In the fan motor mounting structure having the above configuration, to mount the mounting plate 12 to the fan motor 10, first, each well nut 11 is fitted into the through hole 23 of the mounting plate 12. At this time, the well nut 11 is pushed in until the nut 20 in the well nut 11 comes below the mounting plate 12.
[0026]
Next, the fan motor 10 and the mounting plate 12 are brought close to each other, the rotating shaft 14 of the fan motor 10 is inserted into the through hole 22 of the mounting plate 12, and the vibration-proof rubber 15 is fitted into the through hole 22. As a result, the rotation shaft 14 of the fan motor 10 is supported by the mounting plate 12 via the vibration-proof rubber 15.
[0027]
When the fan motor 10 and the mounting plate 12 are brought closer to each other, the bottom surface of the bracket 16 of the fan motor 10 and the upper surface of the well nut 11 are aligned. Then, the binding machine screw 17 is inserted into the washer 21 in the well nut 11 through the hole 16A of the bracket 16, and the binding machine screw 17 is further inserted into the nut in the well nut 11 as shown by a two-dot chain line in FIG. Screw into 20. Thus, the fan motor 10 and the mounting plate 12 are fastened to each other via the well nut 11, and in the present embodiment, the fastened one is referred to as a motor unit.
[0028]
When this motor unit is attached to an air conditioner or the like, the motor unit is attached to the air conditioner main body via the vibration-proof rubber 13. In this case, first, the collar 30 is inserted into the through hole 29 of each convex portion 26 of the vibration-proof rubber 13, and the convex portion 26 is further engaged with the cut 24 on the peripheral edge of the mounting plate 12. Since the anti-vibration rubber 13 is made of rubber and is stretchable, if the entire anti-vibration rubber 13 is expanded, the convex portion 26 can be easily engaged with the cut 24. Actually, as shown in FIG. 3, the convex portion 26 is provided with the small-diameter portion 27 below the large-diameter portion 28, so that when the convex portion 26 is engaged with the cut 24, the small-diameter portion 27 Will fit into the cuts 24.
[0029]
Next, the bind P tight screw 25 is inserted through the collar 30 inside the convex portion 26 of the vibration isolating rubber 13, and the bind P tight screw 25 is attached to a main body case (not shown) of the air conditioner. Thereby, the fan motor 10 (or fan unit) can be fastened to the main body case. In FIG. 1, reference numeral 25A denotes a screw hole provided in the main body case, and the screw 25 is screwed therein.
[0030]
According to the present embodiment, the fan motor 10 and the like are attached to the main body case of the air conditioner by the double anti-vibration structure including the well nut 11 and the anti-vibration rubber 13 formed of the anti-vibration rubber. A vibration effect can be expected.
[0031]
Also, since the bind nut screw 17 is inserted into the well nut 11 and the bind P tight screw 25 is inserted into the vibration isolating rubber 13, the fan motor 10 operates when the fan motor 10 operates (when the rotation shaft 14 rotates). The rotation of the (outer shell) in the reverse direction can be restricted (prevented), and the fan motor 10 can be appropriately fixed in position.
[0032]
Further, according to the present embodiment, if the position of the through hole 23 formed in the mounting plate 12 (the position along the radial direction of the mounting plate 12) is variously displaced, various fan motors 10 having different sizes can be obtained. , And the mounting plate 12 can be made compatible.
(Embodiment 2)
FIG. 4 shows the second embodiment. In the present embodiment, the positions of the mounting plate 12 and the anti-vibration rubber 13 are reversed as compared with the first embodiment. That is, the anti-vibration rubber 13 is disposed between the fan motor 10 and the mounting plate 12.
[0033]
Since the convex portion 26 of the anti-vibration rubber 13 is engaged with the notch 24 of the mounting plate 12, in the present embodiment, the anti-vibration rubber 13 is arranged so that the convex portion 26 is located on the lower side. Then, the collar 30 is inserted into the projection 26 from below, and the bind P tight screw 25 is inserted into the collar 30 from below to above (toward the fan motor 10).
[0034]
In the present embodiment, the main body case of the air conditioner is present in the direction of arrow A, and the fan motor 10 (or fan motor unit) is attached to a part of the main body case via the vibration-proof rubber 13.
[0035]
FIG. 5 is a partial cross-sectional view of the case where the fan motor 10 is attached to the main body case using the well nut 11 and the vibration isolating rubber 13. In FIG. 5, 31 is a boss of the main body case. In FIG. 5, the internal configuration (the rotor, the stator, the bearing, and the like) of the fan motor 10 is omitted.
[0036]
In the present embodiment, the same operation and effect as in the first embodiment can be obtained.
(Embodiment 3)
6 and 7 show an air conditioner according to the third embodiment. This air conditioner is installed on a ceiling or a wall of a bathroom or the like, and performs at least one air conditioning function such as ventilation, drying, heating, and cool air. Have.
[0037]
In the air conditioner of the present embodiment, as shown in FIG. 6, the fan motor unit 40 is attached to the main body case 41 via the vibration-proof rubber 13. The fan motor unit 40 is the same as that shown in FIG. 1. For example, the fan motor 10 and the mounting plate 12 are fastened via a well nut 11 and are unitized.
[0038]
The main body case 41 is provided with a damper attachment portion 42 and a heater attachment portion 43, and the damper 44 is attached to the damper attachment portion 42, and the heater unit 45 is attached to the heater attachment portion 43, respectively. Further, a fan 47 housed in a fan case 46 is connected to the rotating shaft 14 of the motor unit 40, and the fan 47 is driven to rotate by a fan motor in the motor unit 40. The opening of the fan case 46 is covered with a fan case lid 48.
[0039]
The main body case 41 is covered with a non-combustible cover 49. FIG. 7 is a view of the main body case 41 and the non-combustible cover 49 as viewed from a direction opposite to FIG. The air conditioner of the present embodiment switches the damper 44 attached to the damper attachment part 42 to exhaust the room air sucked by the fan 47 to the outside of the building or to warm the room air by the heater unit 45. It can be blown into the room.
[0040]
【The invention's effect】
As described above, according to the present invention, the fan motor is attached to the apparatus main body by the double vibration-proof structure including the first vibration-proof member and the second vibration-proof member. The effect can be obtained.
[0041]
In addition, since the first vibration damping member and the second vibration damping member are provided with the rotation regulating members, the rotation of the fan motor is prevented from rotating in the reverse direction when the fan motor rotates. Therefore, anti-vibration measures can be taken more reliably.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing a fan motor mounting structure according to a first embodiment.
FIG. 2 is an internal configuration diagram of a well nut.
FIG. 3 is an internal configuration diagram of a convex portion of a vibration-proof rubber.
FIG. 4 is an exploded perspective view showing a fan motor mounting structure according to a second embodiment.
FIG. 5 is a partial cross-sectional view when the fan motor is attached to a main body case using a well nut and a vibration isolating rubber.
FIG. 6 is an exploded perspective view of an air conditioner according to a third embodiment.
FIG. 7 is an exploded perspective view of the air conditioner of FIG. 6 when viewed from a different viewpoint.
FIG. 8 is an exploded perspective view showing a conventional fan motor mounting structure.
FIG. 9 is an exploded perspective view showing a fan motor mounting structure according to another example of the related art.
[Explanation of symbols]
10 Fan motor 11 Well nut (first vibration isolating member)
12 Mounting plate 13 Anti-vibration rubber (second anti-vibration member)
14 Rotary shaft 15 Anti-vibration rubber 17 Bind small screw (first fastening member)
25 Bind P tight screw (second fastening member)
30 color 40 fan motor unit 41 body case 46 fan case 47 fan 48 fan case lid

Claims (5)

A fan motor mounting structure for mounting the fan motor to the device body via a fastening member,
The fan motor mounting structure, wherein the fan motor is mounted on a mounting member via a first vibration isolating member, and the mounting member is mounted on the apparatus main body via a second vibration isolating member. . The fan motor mounting structure according to claim 1, further comprising a rotation restricting member that restricts the mounting member and the fan motor from rotating about a rotation axis of the fan motor. The rotation restricting member is inserted into the first vibration isolating member to fasten the fan motor and the mounting member, and is inserted into the second vibration isolating member to mount the rotation restricting member. 2. The fan motor mounting structure according to claim 1, wherein the fan motor mounting structure is a second fastening member for fastening the member and the apparatus main body. A fan motor unit attached to the apparatus body using a fastening member,
Having a fan motor and an attachment member attached to the fan motor via a vibration isolation member,
A fan motor, wherein the vibration isolating member is provided with a rotation restricting member that restricts the fan motor and the mounting member from rotating in opposite directions about a rotation axis of the fan motor. unit. An air conditioner including a fan that circulates or / and exhausts indoor air, and a fan motor that rotationally drives the fan,
An air conditioner, wherein the fan motor is mounted on the apparatus main body by the fan motor mounting structure according to claim 1.

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