JP2003106549A - Indoor heating device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indoor heating device of high product value that can reduce as much of vibration and noise as possible as new problems arising from the installation of indoor equipment inside a bathroom, by easily and surely preventing the transmission or resonance of vibration and noise caused by a motor during actuation of a circulating fan means which the indoor equipment has. SOLUTION: A motor unit 41 of the circulating fan means 40 is mounted on a fan plate 57 and disposed in a casing 21 of the indoor equipment 20. A mounting bracket 46 of the motor unit 41 is secured to the fan plate 57 via an elastic vibration isolating member 430. The vibration isolating member 430 is provided with an engaging protrusion 431 which can be positioned by engaging an engagement hole 59 provided on the inner peripheral edge of a through hole 58 in the fan plate 57, so that the vibration isolating member 430 can be prevented from being disconnected when it is bonded, and it can be positioned easily.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention is provided in a room,
The present invention relates to an indoor heating device that circulates indoor air while heating.

[0002]

2. Description of the Related Art Conventionally, as this type of indoor heating device, a heating / drying machine for a bathroom has been widely known, and such a heating / drying system is of a type installed on a ceiling of a bathroom of an apartment house such as an apartment building. It was the mainstream. This is a configuration in which the main body of the device is installed behind the ceiling of the bathroom, and the suction part and the discharge part provided in the main body are connected to the inside of the bathroom through the suction duct and the discharge duct that penetrate the ceiling wall. There is.

However, when the above-mentioned ceiling-installed heating / drying machine is applied to a bathroom of a general house, there is no space for installing the heating / drying machine under the ceiling, so that the entire heating / drying machine is installed in the bathroom. If it is installed, the space in the bathroom will be greatly reduced accordingly. Therefore, it was not preferable to install the entire device in the bathroom.

On the other hand, when the entire apparatus is installed outside the bathroom, it is necessary to heat the low temperature outside air and send it into the bathroom.
Furthermore, since the hot air heated on the apparatus main body side passes through the discharge duct and the like penetrating the wall, there is a problem that the heat loss in the middle is large and the heating efficiency is lowered.

In addition, even when the bathroom is installed on the ceiling of the bathroom of an apartment house, the opening provided in the wall of the bathroom is for ensuring the air volume for both sucking air into the bathroom and blowing it out into the bathroom. It requires a comparatively large area, and in the bathroom of a general house that originally does not have an opening for installing a heating dryer, there is a problem in construction, such as the construction of the opening being cumbersome and time consuming. It was

[0006] In order to eliminate such inconvenience, recently, a wall-hanging type heating / drying system which is simple in construction and has a high heating efficiency and which can meet the request for space saving without pressing the space in the bathroom Machine is proposed.
This is installed on the side wall in the bathroom and communicates with an indoor unit for heating while circulating the air in the bathroom, and communicates with this indoor unit through a duct penetrating the side wall, and the indoor unit through the indoor unit. It is composed of an outdoor unit for exhausting air to the outside of the bathroom.

[0007]

However, even in the recent wall-hanging type heating and drying machine as described above,
Although the problems of the above ceiling installation type have been solved, the following new problems have been pointed out. That is, in the indoor unit arranged in the bathroom, since a fan and a motor unit are provided as a ventilation unit for circulating the air in the bathroom,
It was revealed that not only the operating noises of these themselves but also the noises generated by the propagation of the vibrations originating from them directly reverberate in the bathroom, and there was a lack of consideration regarding the prevention of such vibrations and noises.

In particular, under recent circumstances where miniaturization of bathroom dryers is recommended, in combination with overcrowding of housing conditions, further reduction of vibration and noise of products is eagerly desired. As a result of diligent study on the above-mentioned problems relating to vibration and noise, the present inventors have found that the main causes of such problems are the following points in the specific configuration of the bathroom dryer illustrated in FIGS. 24 and 25. I found that.

First, as shown in FIG. 24, the motor unit 1 of the circulation blower is supported by the fan plate 2 in a floating manner. The fan plate 2 is provided with a circular hole into which the motor unit 1 can be inserted, and a plurality of mounting brackets 1a extending radially outward at equal angular intervals from the outer circumference of the unit bottom portion are circular while the motor unit 1 is inserted into the circular hole. It was screwed directly to the mounting portion 2a near the inner peripheral edge of the hole.

When the motor unit 1 supported in this way is driven and the fan 3 rotates, the magnetic fluctuation during motor operation (more specifically, the rotor is on the inner peripheral surface of the motor case 1) appears on the outer surface of the motor unit 1. Micro-vibration occurs due to magnetic fluctuation when rotating with respect to a fixed magnet. This slight vibration was transmitted to the fan plate 2 side from each of the mounting brackets 1a, so that relatively large vibration and noise were generated.

Further, a bearing portion 1b of the rotor protrudes in a substantially cylindrical shape on the bottom surface side of the motor unit 2. The tip of the bearing portion 1b is the casing of the indoor unit (more specifically, the base plate 4 shown in FIG. 26). Since it is arranged at a position just in contact with the inner wall of (1), the vibration is transmitted to the housing via the bearing portion 1b, which causes vibration and noise from the entire housing of the indoor unit.

Further, noise such as bearing noise and cogging noise emitted from the motor unit 1 itself is not noticeable by the motor unit 1 alone, but the fan 3 is placed so as to cover the upper surface side of the motor unit 1. It has also been found that the noise generated by the rotation of the motor unit 1 itself or the fan 3 resonates or is amplified in each gap by the support.

In particular, the fan 3 has a disk support portion 3b which extends so as to cover the entire upper surface side of the motor unit 1 from a rotary shaft portion 3a which is integrally fixed coaxially with the output shaft of the motor unit 1. With the structure of the fan 3, noise generated from the motor unit 1 and the like is trapped inside and easily resonates.

Further, as shown in FIG. 25, a rib 4a is provided on the base plate 4 which constitutes the housing of the indoor unit facing the motor unit 1 so as to project the outer shape of the motor unit 1 from its reference plane. However, it has been revealed as a result of various noise measurements and sensory evaluation by the present inventors that even the rib 4a causes noise generated from the motor unit 1 and the like to resonate.

The present invention has been made by paying attention to the problems of the prior art as described above, and vibrations and noises of the motor itself generated at the time of operation of the circulation air blower provided in the indoor unit, and the transmission thereof. It is also an object of the present invention to provide an indoor heating device of high product value that can suppress vibration and noise, which are new problems by arranging the indoor unit in the bathroom, by simply and surely preventing resonance, and having high product value. I am trying.

[0016]

According to the present invention for achieving the above-mentioned object, the silent effect is remarkably confirmed after actually repeating the design based on various noise measurements and sensory evaluations by the present inventors. The present invention has been made, and the gist of the present invention resides in the following items. [1] In an indoor heating device (10) provided in the room (A) for heating while circulating the air in the room (A), a circulation blower means (40) for circulating the air in the room (A) is provided, The circulation blower means (40) has a motor unit (41) that drives the fan (50) while supporting the fan (50).
The motor unit (41) includes a fan plate (57).
Mounted on the fan plate (57) with the vibration isolating member (430) having elasticity interposed therebetween, and the mounting portion (46) of the motor unit (41) is mounted on the fan plate (57). The indoor heating device (1
0).

[2] The fan plate (57) has an insertion hole (58) through which the motor case (42) forming the outer shell of the motor unit (41) is inserted, and the inside of the insertion hole (58). A plurality of the vibration isolating members (430) are attached in the circumferential direction of the peripheral edge, and the attachment is made to extend radially outward from the outer circumference of the one end face side of the motor case (42) with respect to the vibration isolating members (430). The room heating device (10) according to [1], wherein the part (46) is fixed.

[3] A plurality of the vibration isolating members (430) are attached at equal angular intervals, and the attachment portions (46) of the motor case (42) are arranged corresponding to the arrangement of the respective vibration isolating members (430).
The indoor heating device (10) according to [2], characterized in that the same number of projections are provided as mounting brackets.

[4] The vibration-proof member (430) engages with the engaged portion (59) provided in advance on the inner peripheral edge of the fan plate (57), and the engaging portion (43) is positionable.
The indoor heating device (10) according to [1], [2], or [3], which has 1).

[5] Provided in the room (A), the room (A)
In the indoor heating device (10) for heating while circulating the air, the circulation air blower means (40) for circulating the air in the room (A) is provided, and the circulation air blower means (40) includes a fan (50). A motor unit (4
1), and a bearing portion (43b) of the rotor is provided on one end surface side of the motor case (42) forming the outer shell of the motor unit (41) so as to project in the axial direction,
Anti-vibration member (420) having elasticity for the bearing portion (43b)
An indoor heating device (10) characterized by being covered with.

[6] The indoor heating device (10) according to [5], characterized in that the vibration isolator (420) is formed in a cap shape that is fitted onto the entire bearing (43b). ).

[7] The room according to [5] or [6], wherein the bearing portion (43b) is brought into contact with the inner wall of the housing (21) with the vibration isolating member (420) interposed. Heating system (10).

[8] Provided in the room (A), the room (A)
In the indoor heating device (10) for heating while circulating the air, the circulation air blower means (40) for circulating the air in the room (A) is provided, and the circulation air blower means (40) includes a fan (50). A motor unit (4
1) and having at least one end face side of the outer wall of the motor case (42) forming the outer contour of the motor unit (41), with only the output shaft (44) protruding from the one end face side being substantially penetrated An indoor heating device (10), characterized in that the whole area is covered with a soundproof member (410).

[9] One end surface side of the motor case (42) has a flat reference surface extending over substantially the entire area thereof, and the soundproofing member (410) is a rubber sheet material having a shape covering the reference surface. The indoor heating device (10) according to [8], which is molded from.

[10] The fan (50) has a rotary shaft portion (51) integrally fixed coaxially with the output shaft (44) of the motor unit (41), and the rotary shaft portion (51). A disk support part (52) that spreads so as to cover one end surface side of the motor case (42) that forms the outer shell of the motor unit (41), and a large number in the circumferential direction on the outer peripheral edge side of the disk support part (52). A sound release opening (56) for preventing the resonance of the operating sound emitted from the motor unit (41) on the disk support (52), which is composed of wing pieces (53, 54) arranged in a row. [1], [2], [3], [4], [5], [6],
The indoor heating device according to [7], [8] or [9] (1
0).

[11] The sound release opening (56) is
The indoor heating device (10) according to [10], characterized in that a plurality of the disc heating portions (52) are arranged so as to be arranged in series at equal angular intervals along the circumferential direction of the disc supporting portion (52).

[12] The inner wall of the housing (21) is formed into a flat surface excluding the structure projecting from the reference surface in and around the area where the motor unit (41) faces [1]. , [2], [3], [4], [5],
[6], [7], [8], [9], [10] or [1
1] The indoor heating device (10).

The present invention operates as follows. According to the present invention, the motor unit (41) of the circulation blower means (40) is attached to the fan plate (57) and arranged in the housing (21).
The mounting portion (46) of 1) is attached to the vibration-proof member (4) having elasticity.
30) and is fixed to the fan plate (57). As a result, the vibration generated by the motor operation is
Since it is sufficiently damped by the vibration isolator (430) and the transmission to the fan plate (57) side is prevented as much as possible, the generation of vibration and noise can be reduced.

Specifically, for example, a plurality of the vibration isolation members (430) are attached in the circumferential direction of the inner peripheral edge of the insertion hole (58) in the fan plate (57), and each vibration isolation member (4) is attached.
It is advisable to fix the mounting portion (46) that extends radially outward from the outer periphery of the one end face side of the motor case (42) to the motor (30). Then, by inserting the motor case (42) into the insertion hole (58), it is possible to prevent the motor case (42) from being arranged on one side of the fan plate (57) to be large and bulky. 42) can be securely and firmly supported so as to surround its outer periphery,
Moreover, it is possible to reduce the generation of vibration and noise.

If a plurality of the vibration isolator members (430) are attached at equal angular intervals, it is possible to support the device in a more stable state, prevent rotation in a state where the rotary shaft is tilted, and become unstable. It is possible to reliably suppress the occurrence of large vibration that may occur due to the rotation in this state. If the same number of mounting portions (46) of the motor case (42) are provided as mounting brackets in correspondence with the arrangement of the respective vibration isolation members (430), a wasteful mounting structure may be eliminated. It will be possible.

The vibration-proof member (430) can be positioned by engaging with an engaged portion (59) previously provided on the inner peripheral edge of the insertion hole (58) in the fan plate (57). If it has a simple engagement part (431),
It is possible to prevent a situation where the vibration isolating member (430) comes off during bonding, and it is possible to easily position the vibration isolating member (430).

According to another aspect of the invention, the bearing portion (4) of the rotor protruding from the one end face side of the motor case (42).
By covering 3b) with a vibration-proof member (430) having elasticity, it is possible to reduce vibration and noise generated from the bearing portion (43b). Here, the anti-vibration member (43
If (0) is molded into a cap shape that fits over the entire bearing portion (43b), it can be easily and quickly mounted on the bearing portion (43b).

Particularly, the bearing portion (43b) is brought into contact with the inner wall of the housing (21) with the anti-vibration member (430) interposed, so that the motor case (42) can be supported more firmly. Even in the possible configuration, the bearing (4
Since the transmission of vibration from 3b) to the housing (21) is prevented as much as possible, it is possible to reduce the generation of vibration and noise.

Further, according to another invention, at least one end surface side of the outer wall of the motor case (42) is penetrated over substantially the entire area in a state where only the output shaft (44) protruding from the one end surface side is penetrated. By covering with the soundproof member (410), noise such as bearing noise and cogging noise emitted from the motor itself can be reduced to an unnoticeable level before being transmitted to the outside.

Here, when the one end surface side of the motor case (42) has a flat reference surface that spreads over substantially the entire area, the soundproof member (410) is specifically shaped, for example, to cover the reference surface. If it is molded from the rubber sheet material, it can be prepared at a low cost, and resonance of the motor itself, which is a source of noise, can be easily prevented and soundproofing can be improved.

In each of the above inventions, the fan (5
0) expands so as to cover one end face side of the motor case (42) with the rotating shaft part (51) as the center, and the disk support part (5).
2), if the disc support portion (52) is provided with a sound release opening (56) for preventing resonance of the operating sound emitted from the motor unit (41), the motor unit (41) is opened. It is possible to prevent a situation in which noise generated from () etc. is trapped in the disk support portion (52) and resonates.

If the plurality of sound release openings (56) are arranged in a row along the circumferential direction of the disk support (52) at equal angular intervals, the noise will resonate more effectively. Be released to.

Furthermore, if the inner wall of the housing (21) is formed into a flat surface excluding the structure projecting from the reference surface in the area where the motor unit (41) faces and around it, for example, a rib or the like projects. It is possible to prevent the situation where noise resonates through the structure.

[0039]

BEST MODE FOR CARRYING OUT THE INVENTION An embodiment of the present invention will be described below with reference to the drawings. 1 to 23 show an embodiment of the present invention. An indoor heating ventilation device 10 that is an indoor heating device according to the present embodiment is provided on the indoor side, and an indoor unit 20 for heating while circulating air in the room, and an indoor unit 20 via a duct 11 to the indoor unit 20. The outdoor unit 30 is provided outside in the state of being communicated with the outdoor unit 30 for exhausting indoor air to the outside through the indoor unit 20. Hereinafter, as shown in FIG. 2, an example will be described in which it is installed on the side wall C that separates the bathroom A from the outside B.

As shown in FIG. 2, the side wall C has a through hole C1.
The indoor unit 20 is fixed to the inner wall surface of the side wall C in the bathroom A, and the outdoor unit 30 is fixed to the outer wall surface of the outdoor B side at positions where both ends of the through hole C1 are closed. ing.
The indoor unit 20 and the outdoor unit 30 are opposed to each other with the side wall C sandwiched therebetween, and are connected to each other through a duct 11 arranged in the through hole C1. The through hole C1
Is made of wood or the like, and its inner circumference is covered with a heat insulating material C2.

As shown in FIGS. 3 to 7, the indoor unit 20 is
In the housing 21 that forms the outer shell, a circulation air blower 40 for circulating the air in the bathroom A and a heating heater 28 for warming the air are arranged. On the other hand, as shown in FIGS. 8 to 11, the outdoor unit 30 includes a ventilation blower 60 for sucking the air in the bathroom A to the outside B in a housing 31 forming the outer shell thereof, and the entire device. A body control means 70 for controlling the operation is provided.

The housing 21 of the indoor unit 20 is composed of a base plate 22 fixed along the side wall C and a case cover 23 mounted so as to surround the base plate 22. As shown in FIGS. 3 and 4, a suction port grill 24 for sucking the air in the bathroom A is formed on the front surface of the case cover 23 over substantially the entire area thereof.
An air outlet grill 25 is formed on the lower surface of the case cover 23 to blow the air warmed by the heating means 28 into the bathroom A as warm air. A filter 24a is provided along the inside of the inlet grill 24.

As shown in FIGS. 5 and 6, a ventilation hole 22a is formed on one end side of the base plate 22, and as shown in FIG. 2, a through hole C1 is provided near the ventilation hole 22a.
A flange 12 attached to the above is disposed, and one open end of the duct 11 is connected to the flange 12 for communication. The duct 11 is a suction port grill 2 of the case cover 23.
4 forms a ventilation ventilation path for sending the air in the bathroom A sucked from a part of the outdoor unit 30 side to the outdoor unit 30 side, and also the main body control unit 70 on the outdoor unit 30 side, the circulation blower unit 40 and the heating unit. The harnesses 13 and 14 connecting the heating means 28 are inserted.

Inside the indoor unit 20, there is disposed a housing 40a forming a ventilation passage for circulation from the inlet grill 24 to the outlet grill 25, and the circulation blower means 40 is provided in the housing 40a. The heating heating means 28 is provided near the passage where the housing 40a communicates with the outlet grill 25. Heating means for heating 28
Is composed of, for example, an electric ceramic heater having a rated voltage.

The circulation blower means 40 is for circulating the air in the bathroom A. As shown in FIG. 1, the circulation blower means 40 is a motor unit which drives the fan 50 while being axially supported. 41. Motor unit 41
Is installed in the housing 21 of the indoor unit 20 while being attached to the fan plate 57.

As shown in FIGS. 18 and 19, the motor unit 41 includes a motor case 42 formed in a substantially bottomed cylindrical shape.
Forms an outer shell, and the upper surface portion 42a of the motor case 42 is
Bearing portions 43a and 43b are provided on the bottom portion 42b and the bottom portion 42b, respectively. These bearing parts 43a and 43b have
The output shaft 44 of the rotor is rotatably supported. The tip side of the output shaft 44 protruding from the bearing portion 43a has a key structure with a substantially D-shaped cross section, and the rotating shaft portion 51 of the fan 50 is integrally attached to the relevant portion. The motor harness 14 extends from one end of the motor case 42.

The motor case 42 is an integrally molded product made of, for example, a highly rigid synthetic resin such as ABS. The upper surface 42a of the motor case 42 is a concentric metal reinforcing bracket 45.
Are assembled together. A recess corresponding to the shape and thickness of the reinforcing bracket 45 is formed in the upper surface portion 42a, and the reinforcing bracket 45 assembled to the upper surface portion 42a does not project outside the reference surface of the upper surface portion 42a. . The reinforcing bracket 45 is formed with three mounting pieces 45a protruding from the outer peripheral edge thereof, and each mounting piece 45a is screwed into the recess of the upper surface portion 42a.

Such a top surface portion 42a is covered with a soundproof member 410 in such a state that a flat reference surface extending over substantially the entire area is penetrated only by the output shaft 44 protruding from the reference surface. The soundproof member 410 is for reducing vibration and noise generated by the motor unit 41 itself, and the soundproof member 410 is formed from a circular rubber sheet material that covers the reference surface of the upper surface portion 42a. . In addition, a round hole for penetrating the output shaft 44 is formed at the center of the soundproof member 410.

As shown in FIGS. 19 and 1, the bottom surface 4
The bearing portion 43b at 2b has the bearing portion 43b itself protruding in the axial direction in a substantially bottomed tubular shape without penetrating the output shaft 44 to the outside. The bearing 43b is covered with a vibration-proof member 420 having elasticity.

As shown in FIGS. 20 and 21, the vibration-proof member 4
The reference numeral 20 is formed of a rubber material into a cap shape that is fitted onto the entire bearing portion 43b. Specifically, a round hole 421 is formed in the center of the vibration isolating member 420, and a plurality of streak grooves 422 extending radially from the round hole 421 are formed from the inner bottom surface of the vibration isolating member 420 to the inner peripheral wall. Has been done. The bearing portion 43 is formed by the plurality of streak grooves 422.
The contact area with b is reduced to make it difficult to transmit vibration.

As shown in FIG. 1, the vibration isolator 420
Is disposed at a position where it abuts on the inner wall of the base plate 22 of the indoor unit 20, and as a result, the bearing portion 43b of the motor case 42 is disposed on the vibration isolation member 42.
It is fixed to face the base plate 22 side with 0 interposed.

Further, as shown in FIG. 18, three mounting brackets 46 are formed on the bottom surface 42b side of the motor case 42 so as to extend radially outward from the outer periphery of the motor case 42 at intervals of 120 degrees. As shown in FIG. 1, each mounting bracket 46 serves as a mounting portion for fixing to the fan plate 57 with an elastic vibration damping member 430 interposed. The motor unit 41 is attached to the fan plate 57, and is arranged at a predetermined position in the housing 21.

The fan plate 57 is formed of a metal plate in a shape as shown in FIG. 12, and an insertion hole 58 through which the motor case 42 is inserted is formed at a slightly eccentric position. The inner diameter of the insertion hole 58 is equal to that of the motor case 42.
It is set slightly larger than the outer diameter of. In the circumferential direction of the inner peripheral edge of the insertion hole 58, three vibration isolating members 430, which are the same number as the mounting brackets 46, are attached at equal intervals of 120 degrees. The mounting brackets 46 are integrally fixed by screwing.

At the inner peripheral edge of the insertion hole 58, the vibration isolation member 43 is formed.
At the position where 0 is attached, an engaged hole 59 as an engaged portion for each vibration isolating member 430 is formed. FIG.
As shown in FIG. 17, an engaging protrusion 431 is provided on one end surface side of the vibration isolating member 430 as an engaging portion that engages with the engaged hole 59. Due to the engagement relationship between the engaged hole 59 and the engagement protrusion 431, the vibration isolator 430 can be positioned with respect to the inner peripheral edge of the insertion hole 58. On the end face side, the thickness of the fan plate 57 protrudes upward,
A side edge step portion 432 that elastically abuts along the inner peripheral edge of the insertion hole 58 is also provided.

Both ends of the side edge step portion 432 are thinned by the taper 433 attached below the side edge step portion 432 so that the side edge step portion 432 can be deformed more easily than the central portion. The side edge step portion 432 is also configured to more reliably position the antivibration member 430 with respect to the inner peripheral edge of the insertion hole 58, but the antivibration member 430 has one end surface thereof. The side is flow-bonded to the fan plate 57.

At the center of the other end surface of the vibration isolator 430,
A screw hole 434 for screwing the bottom surface of the mounting bracket 46 in a superposed state is also formed in advance.
For such a vibration isolator 430, the mounting bracket 4
By screwing 6 to the circulation blower means 40,
It is fixed to the fan plate 57 with the antivibration member 430 interposed. The fan plate 57 is screwed to the base plate 22 as shown in FIG.

As shown in FIGS. 1, 22, and 23, the fan 50 includes a rotating shaft portion 51 integrally fixed coaxially with the output shaft 44 of the motor unit 41, and the rotating shaft portion 51.
A disk support part 52 that spreads so as to cover the upper surface part 42a side of the motor case 42 around the center, and the disk support part 52
Of the blades 53 and 54 arranged in a row in the circumferential direction on the outer peripheral edge side.

A large number of long blades (wing pieces) 53 are erected on the outer peripheral edge side of the disk supporting portion 52 so as to extend parallel to the axial direction, and circulate so as to connect the leading edges of the respective long blades 53. Along the circumferential direction of the vertical ribs 55, a large number of short blades (wing pieces) 54 are erected so as to extend parallel to the axial direction.

The disk supporting portion 52 is provided with a sound releasing opening 56 for preventing resonance of the operating sound emitted from the motor unit 41. As shown in FIG. 22, three sound release openings 56 are opened along the circumferential direction of the disk support 52 so as to be arranged in series at equal angular intervals.

As shown in FIG. 1, the fan plate 57 is screwed to the base plate 22, and the motor unit 41 attached to the base plate 22 has a casing so that its bottom surface portion 42b faces the inner wall of the base plate 22. It is arranged at a predetermined position in the body 21. Figure 6
As shown in FIG. 6, the inner wall of the base plate 22 corresponding to the area (P in FIG. 6) where the motor unit 41 is in contact with and the periphery thereof is formed in a flat shape excluding the structure protruding from the reference surface.

That is, in the prior art, as shown in FIG. 25, the base plate 4 facing the motor unit 1 was provided with the rib 4a so as to project from the reference surface thereof so as to model the outer shape of the motor unit 1. In the present embodiment, all the structures protruding from the reference surface of the inner wall of the base plate 22 such as the rib 4a are eliminated.

As shown in FIGS. 8 to 11, the outdoor unit 30
In the casing 31 forming the outer shell thereof, ventilation ventilation means 60 for sucking the air in the bathroom A to the outside B and main body control means 70 for controlling the operation of the entire apparatus are provided. There is. The housing 31 includes a case body 32 and the case body 3
2 is combined with a lid 33 mounted so as to surround the front wall of No. 2. As shown in FIG. 9, an exhaust grill 34 is formed on the lower surface of the case body 32.

As shown in FIG. 10, inside the outdoor unit 30, a housing 60a communicating with the indoor unit 20 side via the duct 11 is provided. Housing 60a
The inside thereof has a ventilation passage for sucking the air in the bathroom A through the inlet grill 24 of the case cover 23 and the duct 11 and exhausting the air to the outside B. Ventilation blowing means 60 is arranged in the housing 60a. As shown in FIG. 11, the ventilation blower 60 is
Motor unit 6 that drives with fan 62 supported
1 comprises. The end of the housing 60a communicates with the exhaust port grill 34.

The internal space of the case body 32 is separated from the space surrounded by the lid 33 by the front wall 32a of the case body 32. Main body control means 70 stored
Is provided. The main body control means 70 includes a controller board 71 on which various electronic components are arranged, a motor unit 41 of the circulation blower means 40, and a heating means 2 for heating.
8, and the motor unit 6 of the ventilation fan 60
It is provided with a transmission unit and the like for transmitting the operation of 1 to a remote controller (not shown). The remote controller may be wirelessly installed in a proper place adjacent to the bathroom A, and the remote controller may be provided with a receiving unit that receives the operation state information from the transmitting unit and a display unit that displays the operation state information.

Further, the front wall 32a of the case main body 32 is provided with a cylindrical communication hole 36 which communicates from the internal space of the case cover 23 to the space surrounded by the lid 33, and the communication hole 36 has a bush. 37 is fitted. Although not shown, the bush 37 has the harness 13 extending from the heating means 28 for heating, the motor unit 4 and the harness 13.
The harness 14 extending from 1 penetrates so as to maintain watertightness.

Next, the operation will be described. In the indoor heating / ventilating device 10 assembled as described above, when the heating of the bathroom A is instructed by remote control operation or the like, the motor unit 41 of the circulation blower 40 in the indoor unit 20 is driven,
While the fan 50 rotates, the heater of the heating means 28 for heating is energized.

Then, the air in the bathroom A is sucked into the indoor unit 20 from the inlet grill 24 by the operation of the circulation air blowing unit 40, and the air sent again from the indoor unit 20 is heated by the heating heating unit 28. After being heated, it is blown into the bathroom A from the outlet grill 25 as warm air,
The inside is heated.

When ventilation in the bathroom A is instructed by a remote control or the like, the motor unit 61 of the ventilation fan 60 provided in the outdoor unit 30 is driven and the fan 62 rotates, whereby the bathroom A is rotated. The air inside is sucked from the inlet grill 24 of the indoor unit 20, passes through the duct 11, and is exhausted to the outside B from the exhaust grill 34 of the outdoor unit 30.

When an instruction to dry the inside of the bathroom A is given by remote control or the like, the ventilation blower 60 and the circulation blower 40 are simultaneously actuated, and the heater of the heating heating means 28 is energized, so that the bathroom A Moisture-containing air is sucked from the suction port grill 24, passes through the duct 11, is discharged to the outside B from the exhaust port grill 34, and part of the air sucked from the suction port grill 24 is heated by the heating means 28 for heating.
Is heated by the air outlet grill 25 and blown into the bathroom A as warm air. Thereby, the laundry such as clothes dried in the bathroom A can be dried.

Furthermore, if the ventilation blower 60 and the circulation blower 40 are operated without energizing the heating means 28 for heating, the air in the bathroom A is sucked from the inlet grill 24. While passing through the duct 3 and being exhausted to the outside B from the exhaust port grill 34, a part of the air sucked from the suction port grill 24 is partially discharged.
By being blown from the bathroom A into the bathroom A, you can take a cool bath even in the summer.

In the various operation modes described above,
Even when the circulating air blowing means 40 of the indoor unit 20 arranged in the bathroom A operates in a state where the user is in the bathroom A such as during heating, the operation occurs when the circulating air blowing means 40 operates. The vibration and noise of the motor itself, and their transmission or resonance can be reliably suppressed, and comfortable use becomes possible. Hereinafter, description will be made step by step.

First, in FIG. 1, the motor unit 41 of the circulation air blower 40 is installed in the housing 21 of the indoor unit 20 in a state of being attached to the fan plate 57. The mounting bracket 46 is fixed to the fan plate 57 with a vibration-proof member 430 having elasticity interposed therebetween. Thereby, the vibration generated by the motor operation is sufficiently damped by the vibration isolating member 430, and the transmission to the fan plate 57 side is prevented as much as possible, so that the generation of vibration and noise can be reduced.

More specifically, as shown in FIG. 12, a plurality of vibration damping members 430 are attached along the inner peripheral edge of the insertion hole 58 in the fan plate 57, and each vibration damping member 430 is
The mounting bracket 46 extending outward in the radial direction of the motor case 42 is fixed by screws. Insertion hole 5 here
By inserting the motor case 42 into the housing 8, it is possible to prevent the motor case 42 from being arranged on one side of the fan plate 57 to be large and bulky. In addition, the motor case 42 can be reliably and firmly supported so as to surround the outer periphery thereof, and the generation of vibration and noise can be reduced.

In particular, since the three vibration isolator members 430 are attached at equal angular intervals of 120 degrees, it becomes possible to support them in a more stable state, so that it is possible to prevent rotation when the rotor is tilted. Therefore, it is possible to reliably suppress the occurrence of large vibration that may occur due to the rotation in the unstable state.
Corresponding to the arrangement of each of the vibration isolating members 430, the mounting portions of the motor case 42 may be protruded by the same number as the mounting brackets 46, and a wasteful mounting structure such as a flange extending over the entire circumference is provided. It can be abolished.

As shown in FIGS. 13 to 16, the vibration-proof member 4
Reference numeral 30 denotes an engagement protrusion 4 that engages with and is positioned in an engaged hole 59 provided in advance in the inner peripheral edge of the fan plate 57.
31 is provided, it is possible to prevent a situation in which the vibration isolation member 430 comes off during the flow-bonding to the vibration-proof member 430, and it is possible to position the device reliably and easily.

More specifically, after the adhesive is applied to the fan plate 57 and the mounting bracket 46, the vibration isolating member 430 is flow-bonded. At this time, the side edge step portion 432 of the vibration isolating member 430 also elastically contacts the inner peripheral edge of the insertion hole 58, and the vibration isolating member 430 is reliably held by its own configuration until it is bonded. be able to.

Further, as shown in FIG. 19, the bearing portion 43b of the rotor protruding from the one end face side of the motor case 42 is
By covering with the vibration-proof member 430 having elasticity, vibration and noise generated from the bearing portion 43b can be reduced. Here, the vibration isolator 430 is
As shown in FIG. 5, since it is formed in a cap shape that fits over the entire bearing portion 43b, it can be easily and surely mounted on the bearing portion 43b.

As shown in FIG. 1, the bearing portion 43b is
Since the anti-vibration member 430 is interposed and is in contact with the inner wall of the base plate 22 that forms the housing 21 of the indoor unit 20, the motor case 42 can be more firmly supported. Even in such a contact structure, the transmission of vibration from the bearing portion 43b to the housing 21 is prevented as much as possible by interposing the vibration isolating member 430, so that the generation of vibration and noise can be reduced.

Further, not only with respect to the mounting structure of the motor unit 41, but also with respect to the configuration of the motor unit 41 itself, as shown in FIGS. 18 and 19, the bearing is arranged immediately inside the outer wall of the motor case 42. Upper surface 42a
It is advisable to cover the entire side with the soundproof member 410 in a state where only the output shaft 44 projecting from the upper surface portion 42a is penetrated. As a result, noises such as bearing noises and cogging noises emitted from the motor itself can be reduced to such an extent that they do not bother before being transmitted to the outside.

Here, a metal reinforcing bracket 45 is recessed on the upper surface 42a of the motor case 42.
The reinforcing bracket 45 does not project outward from the reference surface of the upper surface portion 42a. Therefore, the soundproof member 410
Can be easily and inexpensively made from a circular rubber sheet material that covers the reference surface of the upper surface portion 42a, and can cover the upper surface portion 42a so as to enclose the reinforcing bracket 45. . As a result, resonance of the motor itself, which is the source of noise, can be easily prevented, and sound insulation can be improved.

Further, as shown in FIG. 22, with respect to the disk supporting portion 52 that extends so as to cover the upper surface portion 42a side of the motor case 42 with the rotating shaft portion 51 of the fan 50 as the center, the disk supporting portion 52 is It is advisable to open a sound release opening 56 for preventing resonance of the operating sound emitted from the motor unit 41. Such a sound release opening 56
It is possible to prevent the noise generated from the motor unit 41 or the like from being trapped in the disk supporting portion 52 and resonating only by opening the above. Especially the sound release opening 56,
If a plurality of disc supporting portions 52 are arranged so as to be aligned and continuous at equal angular intervals along the circumferential direction of the disc supporting portion 52, the noise is released more effectively so as not to resonate.

Further, in the prior art, as shown in FIG. 25, the base plate 4 with which the motor unit 1 is in contact has a rib 4a protruding from the reference surface so as to model the outer shape of the motor unit 1. As a result of various noise measurements and sensory evaluation by the present inventors, it was revealed that even the ribs 4a resonate the noise generated from the motor unit 1 and the like.

Therefore, as shown in FIG. 6, the inner wall of the base plate 22 corresponding to the area (P in FIG. 6) in which the motor unit 41 is in contact with and around the motor unit 41 has no ribs or the like protruding from the reference surface. If it is molded into a flat surface, it is possible to prevent noise from resonating through the protruding structure such as the rib. In addition to removing all the ribs, partially removing the rib 4a shown in FIG. 25 can reduce noise resonance.

Although the embodiments of the present invention have been described above with reference to the drawings, the specific configuration is not limited to these embodiments, and there are changes and additions within the scope not departing from the gist of the present invention. However, it is included in the present invention. For example, the installation place of the indoor heating / ventilation device 10 is not limited to the bathroom A, but may be applied to a dry room for ski equipment or clothes.

Further, in the above embodiment, only with respect to the circulation blower means 40 of the indoor unit 20 arranged in the bathroom A,
Although various structures for preventing vibration and noise are adopted as described above, the invention can be applied to the ventilation blower means 60 of the outdoor unit 30 arranged in the outdoor B.

Further, inside the indoor unit 20, a dehumidifying means may be provided in addition to the circulation air blowing means 40 and the heating heating means 28, and the inside of the bathroom A sucked from the suction port grill 24. Actively dehumidify the air by the dehumidifying means,
The outlet grille 2 is further heated by the heating means 28 for heating.
By blowing out from 5, it is possible to more efficiently dehumidify the inside of the bathroom A.

Furthermore, the specific shape and the number of the vibration isolator 430, and the mounting structure thereof are not limited to those shown in the drawings. The same applies to the vibration-proof member 420 and the sound-proof member 410. Further, the specific shape and number of the sound releasing openings 56 formed in the disc supporting portion 52 of the fan 50, and the arrangement thereof are not limited to those shown in the drawings.

[0088]

According to the indoor heating apparatus of the present invention, the motor unit of the ventilation means for circulation is mounted on the fan plate and arranged in the housing of the indoor unit. Since the vibration isolating member having elasticity is interposed and fixed to the fan plate, the vibration generated by the motor operation is sufficiently attenuated by the vibration isolating member,
Since transmission to the fan plate side is prevented as much as possible, vibration and noise can be reduced.

Further, by covering the bearing portion of the rotor protruding from the one end face side of the motor case with a vibration-proof member having elasticity, vibration and noise generated from the bearing portion can be reduced. Here, the motor case can be further firmly supported by contacting the bearing portion with the inner wall of the housing of the indoor unit with the vibration isolating member interposed therebetween, and moreover, the bearing portion can be connected to the housing. Since the transmission of vibration is prevented as much as possible, it is possible to reduce the generation of vibration and noise.

Further, by covering at least one end face side of the outer wall of the motor case with a soundproof member over substantially the entire area in a state where only the output shaft protruding from the one end face side is penetrated, the bearing noise generated from the motor itself is reduced. It is possible to reduce noise such as noise and cogging noise to the extent that it does not bother you before it is transmitted to the outside.

Further, in the fan, if a disk support portion that extends so as to cover the one end surface side of the motor case is provided with a sound release opening portion for preventing resonance of the operation sound emitted from the motor unit, It is possible to prevent the noise generated from the motor unit or the like from being trapped in the disc supporting portion and resonating.

Furthermore, if the inner wall of the housing of the indoor unit is formed into a flat surface excluding the structure projecting from the reference surface in the area where the motor unit is in contact with and around it, for example, a projecting structure such as a rib is formed. It is possible to prevent a situation in which noise resonates through.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view showing an indoor unit of an indoor heating / ventilation device according to an embodiment of the present invention.

FIG. 2 is a schematic view showing an installation state of an indoor heating / ventilation device according to an embodiment of the present invention.

FIG. 3 is a front view showing an indoor unit of the indoor heating / ventilating device according to the embodiment of the present invention with a part thereof cut away.

FIG. 4 is a bottom view showing the indoor unit of the indoor heating / ventilating device according to the embodiment of the present invention.

FIG. 5 is a front view showing the internal configuration of the indoor unit of the indoor heating / ventilation device according to the embodiment of the present invention.

FIG. 6 is a front view showing a base plate that constitutes an indoor unit housing of the indoor heating / ventilation device according to the embodiment of the present invention.

FIG. 7 is a vertical cross-sectional view showing an indoor unit of an indoor heating / ventilation device according to an embodiment of the present invention.

FIG. 8 is a front view showing the outdoor unit of the indoor heating / ventilation device according to the embodiment of the present invention.

FIG. 9 is a bottom view showing the outdoor unit of the indoor heating / ventilation device according to the embodiment of the present invention.

FIG. 10 is a front view showing the internal configuration of the outdoor unit of the indoor heating / ventilation device according to the embodiment of the present invention.

FIG. 11 is a transverse cross-sectional view showing the outdoor unit of the indoor heating / ventilation device according to the embodiment of the present invention.

FIG. 12 is a front view showing a fan plate arranged in the indoor unit of the indoor heating / ventilation device according to the embodiment of the present invention.

FIG. 13 is an enlarged view showing a state in which a vibration isolation member is attached to a fan plate arranged in the indoor unit of the indoor heating / ventilation device according to the embodiment of the present invention.

14 is a view on arrow XIV of FIG. 13. FIG.

FIG. 15 is a view on arrow XV in FIG. 13.

16 is an enlarged view of a portion A of FIG.

17 is a sectional view taken along line XVII-XVII in FIG.

FIG. 18 is a front view showing a motor unit arranged in the indoor unit of the indoor heating / ventilation device according to the embodiment of the present invention.

FIG. 19 is a side view showing a motor unit arranged in the indoor unit of the indoor heating / ventilation device according to the embodiment of the present invention.

FIG. 20 is a plan view showing a vibration damping member to be mounted on a bearing portion protruding from a bottom surface portion of a motor case that constitutes a motor unit.

FIG. 21 is a vertical cross-sectional view showing a vibration isolator mounted on a bearing portion protruding from a bottom surface portion of a motor case that constitutes a motor unit.

FIG. 22 is a front view showing a fan arranged in the indoor unit of the indoor heating / ventilation device according to the embodiment of the present invention.

FIG. 23 is a vertical cross-sectional view showing a fan provided in the indoor unit of the indoor heating / ventilation device according to the embodiment of the present invention.

FIG. 24 is a plan view showing a main part of a fan plate in an indoor unit of a conventional indoor heating / ventilating device.

FIG. 25 is a cross-sectional view showing a mounting structure of a motor unit in an indoor unit of a conventional indoor heating / ventilation device.

[Explanation of symbols]

A ... Bathroom B ... Outdoor C ... Side wall 10… Indoor heating ventilation system 11 ... Duct 12 ... Flange 20 ... Indoor unit 21 ... Case 22 ... Base plate 22a ... Ventilation hole 23 ... Case cover 24 ... Inlet grill 24a ... filter 25 ... Outlet grill 28 ... Heating means for heating 30 ... Outdoor unit 31 ... Case 32 ... Case body 33 ... Lid 34 ... Exhaust grill 35 ... Controller case 40 ... Blower for circulation 40a ... housing 41 ... Motor unit 42 ... Motor case 42a ... upper surface 42b ... bottom part 43a ... Bearing part 43b ... Bearing part 44 ... Output shaft 45 ... Reinforcing bracket 46 ... Mounting bracket 50 ... fan 51 ... Rotating shaft 52 ... Disk support 53 ... Long wings 54 ... Short wings 55 ... Vertical rib 56 ... Sound release opening 57 ... Fan plate 58 ... insertion hole 59 ... Engaged hole 60 ... Ventilation means for ventilation 60a ... Housing 61 ... Motor unit 62 ... fan 70 ... Main body control means 71 ... Controller board 410 ... Soundproof member 420 ... Anti-vibration member 421 ... Round hole 422 ... streak 430 ... Anti-vibration member 431 ... Engaging protrusion 432 ... Side edge step 433 ... taper 434 ... Screw hole

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[Procedure amendment]

[Submission date] April 24, 2002 (2002.4.2)
4)

[Procedure Amendment 1]

[Document name to be corrected] Drawing

[Correction target item name] All drawings

[Correction method] Change

[Correction content]

FIG. 14

FIG. 17

FIG. 21

[Figure 1]

[Fig. 2]

[Figure 3]

[Figure 7]

[Fig. 13]

[Figure 4]

[Figure 5]

[Figure 6]

FIG. 15

FIG. 16

FIG. 18

[Figure 8]

[Figure 9]

FIG. 11

[Fig. 12]

FIG. 19

FIG. 20

[Figure 10]

FIG. 22

FIG. 23

FIG. 24

FIG. 25

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Toru Hirose             2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture             No. Totoki Equipment Co., Ltd. (72) Inventor Yoshihiro Ogami             2-1-1 Nakajima, Kokurakita-ku, Kitakyushu City, Fukuoka Prefecture             No. Totoki Equipment Co., Ltd. (72) Inventor Kuniyuki Sekine             100, Maeda-cho, Totsuka-ku, Yokohama-shi, Kanagawa             Inside Thread Industry Co., Ltd. (72) Inventor Kiyoshi Iwamatsu             100, Maeda-cho, Totsuka-ku, Yokohama-shi, Kanagawa             Inside Thread Industry Co., Ltd. F-term (reference) 3L028 BA00 BB01 BD01                 3L050 BA02                 3L071 AA02 AB02 AC02                 3L072 AA05 AB06 AD17 AD19

Claims (12)

[Claims] 1. An indoor heating device provided in a room for heating while circulating air in the room, wherein a ventilation device for circulating the air in the room is provided, and the ventilation device for circulation has a fan axially supported. A motor unit that is driven by the motor unit, and the motor unit is mounted on a fan plate and disposed in the housing, and the mounting portion of the motor unit is fixed to the fan plate with an elastic vibration isolating member interposed. An indoor heating device characterized by the above. 2. The fan plate has an insertion hole for penetrating a motor case forming an outer shell of the motor unit, and a plurality of the vibration isolating members are attached in a circumferential direction of an inner peripheral edge of the insertion hole, and each of the anti-vibration members is attached. The indoor heating device according to claim 1, wherein the mounting portion that extends radially outward from the outer periphery of the one end surface side of the motor case is fixed to the vibration member. 3. A plurality of the vibration isolating members are attached at equal angular intervals, and the same number of mounting portions of the motor case are provided as mounting brackets corresponding to the arrangement of the respective vibration isolating members. The indoor heating device described in 2. 4. The anti-vibration member has an engaging portion which is engageable with an engaged portion provided in advance on an inner peripheral edge of the fan plate and which can be positioned. Or the indoor heating device according to 3. 5. An indoor heating device provided in a room for heating while circulating the air in the room, wherein a ventilation device for circulating the air in the room is provided, and the ventilation device for circulation has a fan axially supported. A motor unit that is driven by a motor unit, and a bearing portion of the rotor is provided so as to project in the axial direction on one end surface side of a motor case that forms the outer shell of the motor unit. An indoor heating device characterized by being covered with a member. 6. The indoor heating device according to claim 5, wherein the vibration isolator is formed in a cap shape that is fitted onto the entire bearing portion. 7. The indoor heating apparatus according to claim 5, wherein the bearing portion is brought into contact with the inner wall of the housing with the vibration isolating member interposed. 8. An indoor heating device provided in a room for heating while circulating the air in the room, wherein a ventilation device for circulating the indoor air is provided, and the ventilation device for the circulation has a fan axially supported. A motor unit that is driven by the motor unit, and at least one end face side of the outer wall of the motor case forming the outer contour of the motor unit is covered with a soundproof member over substantially the entire area in a state where only the output shaft protruding from the one end face side is penetrated An indoor heating device characterized by the above. 9. The one end surface side of the motor case has a flat reference surface extending over substantially the entire area thereof, and the soundproof member is molded from a rubber sheet material having a shape covering the reference surface. The indoor heating device according to claim 8, wherein: 10. The fan includes a rotating shaft portion integrally fixed coaxially with an output shaft of the motor unit, and one end surface side of a motor case forming an outer shell of the motor unit with the rotating shaft portion as a center. And a wing piece that is arranged in multiple rows in the circumferential direction on the outer peripheral side of the disk support part, and prevents the resonance of the operating sound emitted from the motor unit on the disk support part. A sound release opening for opening is provided.
The indoor heating device according to 5, 6, 7, 8 or 9. 11. The indoor heating device according to claim 10, wherein a plurality of the sound releasing openings are formed so as to be arranged in a row and arranged at equal angular intervals along the circumferential direction of the disk support. 12. A housing inner wall is formed into a flat surface excluding a structure projecting from a reference surface in and around a region where the motor units face each other.
Indoor heating device according to 3, 4, 5, 6, 7, 8, 9, 10 or 11.