JP2012231579A - Motor holding structure, electric device, and blower - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a motor holding structure which sufficiently absorbs vibrations transmitted from a motor to a holding body with a vibration proofing body to reduce the vibrations and achieves good mountability, and to provide an electric device and a blower that have the motor holding structure.SOLUTION: A flange 33 is provided at a substantially center part of an outer peripheral surface of a motor body 31 of a motor 3, and a protruding part 34, having a tongue shape, is provided at the flange 33 so as to protrude. The protruding part 34 is covered by a vibration proof spacer 35 made of synthetic rubber. An angle for motor fixation 5 includes a cover part 51 covering the vibration proof spacer 35; and an adhesion part adhered to a cabinet 4. The vibration proof spacer 35 is covered by the cover part 51 and the angle for the motor fixation 5 is placed so as to contact with the cabinets 4 with the vibration proof spacer 35 fitted into a spacer fitting recessed part 411 of a flange housing part 41 of the cabinet 4 and the motor 3 fitted into a mount hole 412. The motor 3 is fixed by performing the process.

Description

  The present invention relates to a motor holding structure in which a motor is fitted and held in the mounting hole of a holding body provided with a mounting hole, and an electric apparatus and a blower provided with the motor holding structure.

For example, in an electric device such as a blower having a motor and a blower fan fixed to the output shaft of the motor, a motor that is a rotating body is a source of vibration, so that the vibration is not transmitted to the main body of the electric device. In addition, a cushion member made of, for example, synthetic rubber needs to be interposed between the motor and the main body cabinet.
When fixing a motor having a flange with screw fixing holes on its outer peripheral surface to the main body cabinet, conventionally, an anti-vibration rubber (anti-vibration spacer) is interposed between the screw and the flange so that the motor body It was the composition which suppressed the vibration transmitted to.
In Patent Document 1, a flange formed on the outer periphery of a motor, an annular fixing plate fixed to the flange, a plurality of vibration-proof rubber engaging holes formed in the fixing plate, and a screw fixing member on the motor base An invention of a fan motor support device comprising a cylindrical anti-vibration rubber having an annular groove that is fixed via an engagement and engages with the anti-vibration rubber engaging hole is disclosed.

JP-A-6-74491

However, in the case where the vibration isolating spacer is interposed between the above-described screw and the motor flange, the contact area between the screw head of the screw connected to the cabinet and the vibration isolating spacer is small. Even if it is arranged, there is a problem that vibrations from the motor cannot be sufficiently absorbed.
In the case of the invention of Patent Document 1 in which the vibration isolating spacer is interposed between the fixing plate for fixing the motor flange and the motor base, and between the screw and the fixing plate, the screw head and the vibration isolating spacer are the same as described above. Therefore, there is a problem that vibration transmitted from the motor to the motor base via the fixed plate cannot be sufficiently reduced.
In either case, since the anti-vibration spacers are arranged on both sides of the flange or the fixing plate and fixed with screws, there is a problem that the mounting of the motor is complicated.

  The present invention has been made in view of such circumstances, and the contact area between the vibration isolator and the holder that holds the motor is large, and the vibration transmitted from the motor to the holder is sufficiently absorbed by the vibration isolator. It is an object of the present invention to provide a motor holding structure that can be reduced and has a good motor mountability, and an electric device and a blower that have the motor holding structure.

  A motor holding structure according to the present invention is a motor holding structure in which a motor is fitted and held in the mounting hole of a holding body provided with a mounting hole, and the direction crossing the output shaft of the motor on the outer peripheral surface of the motor And a plurality of vibration isolators that sandwich the plurality of protrusions in a direction parallel to the output shaft, and are externally fitted to the motor. It is provided with a fixed ring that is in contact with a peripheral portion and fixes the motor to the holding body in a state where the vibration isolator is sandwiched between the peripheral portion.

  In the present invention, the protrusion is sandwiched in advance by the vibration isolator, and the fixing ring is brought into contact with the peripheral edge so as to sandwich the vibration isolator with the peripheral edge of the mounting hole, thereby fixing the motor to the holding body. It is configured. Conventionally, since the vibration isolator is interposed in the part where the screw is fixed to the holding body, the size of the vibration isolator is limited, and the contact area between the screw and the vibration isolator is small, so the vibration of the motor is sufficient. However, in the present invention, since the vibration isolator is not interposed in the portion to be screwed, the degree of freedom in size is high, and the vibration isolator holding body and stationary ring The contact area can be made sufficiently large. Therefore, the vibration transmitted from the motor to the entire apparatus including the holding body through the holding body can be sufficiently absorbed and reduced by the vibration isolator. And since it is comprised as mentioned above, the attachment property of a motor is also favorable.

  The motor holding structure according to the present invention is characterized in that the vibration isolator covers the protrusion.

  In the present invention, since the contact area between the vibration isolator holder and the stationary ring can be increased, vibration transmitted from the motor to the entire apparatus can be further reduced. And since the vibration isolator is sandwiched between the fixing ring and the holding body and fixed to the holding body in a state where the vibration isolating body is slid and inserted in advance into the protruding portion, the mountability of the motor is further improved.

  The motor holding structure according to the present invention is characterized in that the stationary ring has alternately a portion in which the vibration isolator is sandwiched and a portion in close contact with the holding body in the circumferential direction.

  In the present invention, the stationary ring can be securely fixed to the holding body in a balanced manner, and the vibration isolator can also be reliably fixed to the stationary ring and the holding body.

  The motor holding structure according to the present invention is characterized in that a portion of the stationary ring sandwiching the vibration isolator is configured to cover the vibration isolator.

  In the present invention, the vibration of the motor is further reduced and the mountability is also improved.

  In the motor holding structure according to the present invention, the motor has a flange on an outer peripheral surface, the protrusion is provided on the flange, and the holding body is protruded so as to fit the vibration isolator and the flange. It has the protrusion part, It is characterized by the above-mentioned.

  In the present invention, the vibration isolator can be more securely fixed to the stationary ring and the holding body, and the vibration of the motor can be absorbed better.

  An electrical apparatus according to the present invention includes the above-described motor holding structure.

  In the present invention, the transmission of vibration from the motor to the entire electrical equipment is satisfactorily suppressed.

  A blower device according to the present invention is a blower device that sucks external air from a suction port by rotation of a blower fan, and blows the sucked air to the outside from a blowout port. A fan is attached.

  In the present invention, transmission of vibration from the motor to the entire blower is satisfactorily suppressed.

  The blower according to the present invention includes a ventilation path that guides air sucked from the suction port to the blower fan, and the holding body separates the ventilation path and the space in which the blower fan is housed. It is characterized by that.

  In the present invention, the suction side ventilation path and the space in which the blower fan is accommodated are separated by a holding body, and the holding body is made of a single thin plate to save space as the entire apparatus. In this case, since the air blower has the above-described motor holding structure, the vibration of the motor is not easily transmitted directly to the holding body, and there is no hindrance, and space saving and downsizing can be achieved.

  According to the present invention, the motor protrusion is sandwiched in advance by the vibration isolator, the fixed ring is brought into contact with the peripheral edge so as to sandwich the vibration isolator with the peripheral edge of the mounting hole, and the motor is attached to the holding body. Since it is fixed, there is a high degree of freedom in the size of the vibration isolator, the contact area between the vibration isolator stationary ring and the holder can be made sufficiently large, and vibration transmitted from the motor to the holder can be absorbed sufficiently. Can be reduced. And the attachment property with respect to the holding body of a motor is also favorable.

It is a partially broken front view which shows the internal structure of the humidification apparatus as an air blower which concerns on Embodiment 1 of this invention. It is the II-II sectional view taken on the line of FIG. It is the III-III sectional view taken on the line of FIG. It is a disassembled perspective view which shows the motor which concerns on Embodiment 1 of this invention. It is a perspective view which shows the state which attached the anti-vibration spacer which concerns on Embodiment 1 of this invention to the projection part. It is sectional drawing which shows the state which attached the vibration proof spacer which concerns on Embodiment 1 of this invention to the projection part. It is a perspective view which shows the state before attaching the motor which concerns on Embodiment 1 of this invention to a cabinet. It is a perspective view which shows the state after attaching the motor which concerns on Embodiment 1 of this invention to the cabinet. It is sectional drawing which shows the state after attaching the motor which concerns on Embodiment 1 of this invention to the cabinet. It is a perspective view which shows the state before fixing a motor to a cabinet with the motor fixing angle which concerns on Embodiment 1 of this invention. It is a perspective view which shows the state after fixing a motor to the cabinet with the motor fixing angle which concerns on Embodiment 1 of this invention. It is sectional drawing which shows the state after fixing the motor which concerns on Embodiment 1 of this invention to a cabinet. It is a perspective view which shows the state before attaching the motor which concerns on Embodiment 2 of this invention to a cabinet. It is a perspective view which shows the state after attaching the motor which concerns on Embodiment 2 of this invention to the cabinet. It is a perspective view which shows the state before fixing a motor to a cabinet with the angle for motor fixing which concerns on Embodiment 2 of this invention. It is a perspective view which shows the state after fixing a motor to the cabinet with the motor fixing angle which concerns on Embodiment 2 of this invention.

Hereinafter, the present invention will be specifically described with reference to the drawings showing embodiments thereof.
(Embodiment 1)
FIG. 1 is a front view showing an internal configuration of a humidifying device 1 according to Embodiment 1, which is a blower as an example of an electric apparatus according to the present invention, FIG. 2 is a cross-sectional view taken along the line II-II in FIG. FIG. 3 is a sectional view taken along line III-III in FIG. 1.
The humidifier 1 includes a housing 2, a blower 20 having a motor 3 and a blower fan 7, a humidifying filter 8, a water storage tank 9, a water storage tank 10, and an ion generating element 11.

The casing 2 has a rectangular parallelepiped shape, and is erected on the floor of the room.
A plurality of air inlets 21, 21,... Are formed in a matrix on the back surface of the housing 2. In addition, you may decide to comprise so that the backplate in which the inlet port 21 was formed could be attached or detached to the back surface of the housing | casing 2. FIG.
An air outlet 22 having a rectangular shape in plan view is formed on the upper surface of the housing 2.

A water tank 9 is provided on the bottom surface of the housing 2.
A water storage tank 10 is detachably mounted on the left side of the housing 2 in front view. The water storage tank 9 stores water supplied from the water storage tank 10.

  The water storage tank 10 is configured to automatically supply water to the water storage tank 9 so as to maintain a predetermined water level in the water storage tank 9. Water is supplied from the water storage tank 10 to the water storage tank 9 so that the humidification filter 8 is sufficiently submerged and the water level is appropriately lower than the upper end of the peripheral wall of the water storage tank 9.

The humidifying filter 8 has a disk shape or a rectangular shape having an appropriate thickness, and includes a filter main body having water absorption and air permeability, and a synthetic resin frame that holds the filter main body.
The humidification filter 8 is arranged in a vertical posture from the central part in the left-right direction of the water storage tank 9 to the right side part. And the lower part of the humidification filter 8 is immersed in the water storage tank 9, and the humidification filter 8 absorbs water by this.

The blower fan 7 of the blower 20 is a sirocco fan. The motor 3 to which the blower fan 7 is attached projects into a case-like cabinet (holding body) 4 having a shape in which the upper right side of the circle is cut open so as to be continuous with the air outlet 22, and projects toward the back side of the cabinet 4. It is held in a state where it is fitted in the mounting hole 412 on the bottom surface of the provided flange housing part (projecting part) 41.
The blower fan 7 rotates when the motor 3 operates. When the blower fan 7 rotates, air is sucked from the outside of the humidifier 1 through the intake ports 21, 21,. After flowing downward along the back surface of the housing 2, the air flows in the front-rear direction so as to pass through the humidifying filter 8, flows upward from below along the front surface of the housing 2, and passes through the blower fan 7. The air is discharged from the air outlet 22 to the outside of the humidifier 1.
An ion generating element 11 is disposed in the vicinity of the air outlet 22 and is configured to add the generated positive ions and negative ions to the exhausted air.

Hereinafter, the holding structure of the motor 3 according to the present embodiment will be described in detail.
4 is an exploded perspective view showing the motor 3, FIG. 5 is a perspective view showing a state in which the anti-vibration spacer 35 is attached to the protrusion 34, and FIG. 6 is a cross-sectional view showing a state in which the anti-vibration spacer 35 is attached to the protrusion 34. It is.
The motor 3 is provided with a motor body 31, an output shaft 32, a flange 33 provided at a substantially central portion of the outer peripheral surface of the motor body 31, and a tongue-like shape in the radial direction of the flange 33, Four protrusions 34 provided at equal intervals in the circumferential direction and an anti-vibration spacer 35 made of, for example, synthetic rubber that covers the protrusions 34 are provided. The anti-vibration spacer 35 has a bag shape in which the surface facing the protrusion 34 is open, and is attached to the protrusion 34 by being slid and inserted into the protrusion 34. A notch for forming a gap through which the harness of the motor 3 is passed is formed on one side of the lower part of the anti-vibration spacer 35.
The material of the vibration isolation spacer 35 is not limited to synthetic rubber, and may be made of other synthetic resins.

7 is a perspective view showing a state before the motor 3 is attached to the cabinet 4, FIG. 8 is a perspective view showing a state after the motor 3 is attached to the cabinet 4, and FIG. 9 is a view after the motor 3 is attached to the cabinet 4. It is sectional drawing which shows a state.
As described above, the flange housing portion 41 protrudes from the back side of the cabinet 4, and the motor 3 is fitted into the mounting hole 412 formed on the bottom surface of the flange housing portion 41. The flange storage portion 41 has substantially the same shape as the vibration-proof spacer 35, and includes a spacer fitting recess 411 having a depth that covers most of the vibration-proof spacer 35 in the thickness direction as shown in FIG. Portions other than the spacer fitting concave portion 411 of the flange accommodating portion 41 are configured so as to be slightly outside the outer edge portion of the flange 33. Screw fixing holes 42 are provided in the circumferential portion of the flange housing portion 41 of the cabinet 4 in four equal parts in the circumferential direction.

FIG. 10 is a perspective view showing a state before the motor 3 is fixed to the cabinet 4 by the motor fixing angle (fixed ring) 5, and FIG. 11 is a state after the motor 3 is fixed to the cabinet 4 by the motor fixing angle 5. FIG. 12 is a cross-sectional view showing a state after the motor 3 is fixed to the cabinet 4.
The motor fixing angle 5 made of synthetic resin includes a covering portion 51 that covers the anti-vibration spacer 35 fitted in the spacer fitting concave portion 411, and a close contact portion 52 that is in close contact with the cabinet 4 and in which a screw insertion hole 52a is formed. Are alternately formed in the circumferential direction. The surface of the close contact portion 52 is provided with an outer edge portion, an inner edge portion, and a plurality of ribs that bridge the outer edge portion and the inner edge portion, a central portion projects radially outward, and a screw insertion hole 52a is formed in the central portion. Is provided.
The motor fixing angle 5 is fitted to the motor body 31 and is slid to the cabinet 4 side, the anti-vibration spacer 35 is covered with the covering portion 51, and the close contact portion 52 is brought into contact with the peripheral portion of the mounting hole 412 of the cabinet 4. The motor 3 is fixed to the cabinet 4 by screwing screws (not shown) through the screw insertion holes 52a and the screw fixing holes 42 of the close contact portion 52 and bringing the close contact portion 52 into close contact with the peripheral edge portion.

  As shown in FIG. 12, there is a gap between the outer periphery of the motor body 31 and the hole through which the motor body 31 of the motor fixing angle 5 is inserted. A gap is also opened between the outer periphery of the motor body 31 and the mounting hole 412 of the cabinet 4. By providing this gap, the motor 3 is prevented from coming into contact with the motor fixing angle 5 and the cabinet 4 when the vibration-proof spacer 35 is bent by the vibration of the motor 3.

As described above, in the present embodiment, the anti-vibration spacer 35 having a shape corresponding to the protrusion 34 is attached to the protrusion 34, and the anti-vibration spacer 35 is further attached to the cabinet 4 with the motor fixing angle 5 as a separate member. The motor 3 is fixed to the cabinet 4 by pressing down. Therefore, the mounting property is good.
The vibration generated by the motor 3 is transmitted to the cabinet 4 through a vibration isolation spacer 35 attached to the protrusion 34.
At this time, the anti-vibration spacer 35 attached to the protrusion 34 is in contact with the motor fixing angle 5 and the cabinet 4 in a sufficiently large area, that is, the anti-vibration spacer 35 and the anti-vibration spacer 35 on the fixing side of the anti-vibration spacer 35 are Since the contact area with the member is large, it is possible to absorb the vibration of the motor 3 and sufficiently reduce the amount of vibration transmitted from the motor 3 to the entire humidifier 1 via the cabinet 4.

  In the present embodiment, the motor fixing angle 5 is provided with a portion where the vibration isolating spacer 35 is sandwiched and a portion which is in close contact with the cabinet 4, so that the vibration isolating spacer 35 is balanced with the cabinet 4. The anti-vibration spacer 35 can be fixed to the motor fixing angle 5 and the cabinet 4 with certainty.

  Furthermore, in this Embodiment, as shown in FIG. 2, it is set as the structure which separates the ventilation path by the side of suction, and the space in which the air blower 20 is accommodated by the cabinet 4, and the cabinet 4 is made into one sheet. Although space saving is achieved as the entire apparatus, since the motor holding structure is provided, the vibration of the motor is prevented from being directly transmitted to the cabinet 4, and the humidifier 1 can be downsized without hindrance.

  The anti-vibration spacer 35 has a bag shape in which the surface facing the protrusion 34 is open, and is not limited to the case where the protrusion 34 is completely covered. The protrusion 34 is connected to the output shaft 32. What is necessary is just to be an integrated type which has a shape that can be fixed to the cabinet 4 by the motor fixing angle 5 after being sandwiched in parallel directions. However, when the anti-vibration spacer 35 is formed in a bag shape, as described above, the anti-vibration spacer 35 can contact the motor fixing angle 5 and the cabinet 4 in a sufficiently large area, which is preferable.

(Embodiment 2)
In the motor holding structure according to the second embodiment of the present invention, the shapes of the motor storage portion and the motor fixing angle are different from the shapes of the flange storage portion 41 and the motor fixing angle 5 according to the first embodiment. It has the same configuration as the motor holding structure according to the first embodiment.

  13 is a perspective view showing a state before the motor 3 is attached to the cabinet 4, FIG. 14 is a perspective view showing a state after the motor 3 is attached to the cabinet 4, and FIG. FIG. 16 is a perspective view showing a state after the motor 3 is fixed to the cabinet 4 by the fixed angle 6. In the figure, the same parts as those in FIGS. 7, 8, 10, and 11 are denoted by the same reference numerals and detailed description thereof is omitted.

  In the motor holding structure according to the present embodiment, a flange housing part 43 projects from the back side of the cabinet 4, and the motor 3 is fitted into a mounting hole 432 formed on the bottom surface of the flange housing part 43. . The flange housing portion 43 includes a spacer fitting recess 431 having substantially the same shape as the vibration isolating spacer 35, and a portion other than the spacer fitting recess 431 of the flange housing portion 43 is slightly outside the outer edge portion of the flange 33. It is configured to be along. A rib 433 extending in the radial direction of the mounting hole 432 is provided on the bottom surface of the spacer fitting recess 431, and two ribs 434 extending in the thickness direction of the spacer fitting recess 431 are provided on the side surface of the spacer fitting recess 431. Are provided so as to face each other.

The motor-fixing angle 6 made of synthetic resin is in close contact with the cabinet 4, and is clamped to extend in the circumferential direction so as to sandwich the base portion of the vibration-proof spacer 35 with the close-contact portion 61 in which the screw insertion hole 61 a is formed. Part 62. The motor fixing angle 6 has a thin ring shape, the close contact portion 61 is provided on the cabinet 4 side in the thickness direction, and the screw insertion hole 61a is provided in the central portion protruding radially outward. The clamping part 62 is provided on the outer side in the thickness direction of the motor fixing angle 6. As shown in FIG. 16, when the close contact portion 61 is fixed to the cabinet 4 with screws, the vibration isolation spacer 35 is sandwiched between the sandwiching portion 62 and the close contact portions 61 on both sides of the vibration isolation spacer 35, and Fixed.
In the present embodiment, since the rib 433 and the rib 434 are provided in the spacer fitting recess 431, the vibration isolating spacer 35 is locked to the rib 433 and the rib 434 and more firmly fixed to the cabinet 4. .

  Also in the present embodiment, as in the first embodiment, the vibration isolating spacer 35 attached to the protrusion 34 is in contact with the motor fixing angle 6 and the cabinet 4 in a sufficiently large area, so that the vibration of the motor 3 The amount of vibration transmitted from the motor 3 through the cabinet 4 to the entire humidifier 1 can be sufficiently reduced.

  In the first and second embodiments described above, the humidifier is described as an example of the air blower of the electric device, but the humidifier is not limited to the humidifier, and the attachment hole of the holding body provided with the attachment hole is not limited to the humidifier. Any electric device may be used as long as it has a motor holding structure for fitting and holding the motor. For example, the present invention can be applied to electric devices such as an air conditioner, a fan, a dehumidifier, and an air cleaner.

  The embodiment disclosed this time is to be considered as illustrative in all points and not restrictive. The scope of the present invention is not intended to include the above-described meanings, but is intended to include meanings equivalent to the claims and all modifications within the scope of the claims.

DESCRIPTION OF SYMBOLS 1 Humidifier 2 Housing | casing 21 Intake port 22 Outlet 3 Motor 31 Motor main body 32 Output shaft 33 Flange 34 Protrusion 35 Anti-vibration spacer 4 Cabinet 41, 43 Flange storage part 411, 431 Spacer fitting recessed part 412, 432 Mounting hole 42 Screw fixing hole 433, 434 Rib 5, 6 Motor fixing angle 51 Covering part 52, 61 Adhering part 52a, 61a Screw insertion hole 62 Clamping part 7 Blower fan 8 Humidification filter 9 Water tank 10 Water storage tank 11 Ion generating element 20 Blower

Claims (8)

In the motor holding structure for fitting and holding the motor in the mounting hole of the holding body provided with the mounting hole,
A plurality of protrusions extending in a direction crossing the output shaft of the motor are provided on the outer peripheral surface of the motor,
A plurality of vibration isolator made of a material having elasticity, and sandwiching the plurality of protrusions in a direction parallel to the output shaft;
A fixing ring that is externally fitted to the motor, is in contact with a peripheral edge of the mounting hole, and fixes the motor to the holding body in a state of sandwiching the vibration isolator with the peripheral edge. Motor holding structure.   The motor holding structure according to claim 1, wherein the vibration isolator covers the protrusion.   3. The motor holding structure according to claim 1, wherein the stationary ring has alternately a portion in which the vibration isolator is sandwiched and a portion in close contact with the holding body in the circumferential direction.   The motor holding structure according to any one of claims 1 to 3, wherein a portion of the stationary ring that sandwiches the vibration isolator is configured to cover the vibration isolator. The motor has a flange on the outer peripheral surface,
The protrusion is provided on the flange;
The motor holding structure according to any one of claims 1 to 4, wherein the holding body has a protruding portion protruding so as to fit the vibration isolator and the flange.   An electric device comprising the motor holding structure according to any one of claims 1 to 5. In the air blower that sucks outside air from the suction port by rotation of the blower fan and blows out the sucked air to the outside from the air outlet,
The motor holding structure according to any one of claims 1 to 5,
The blower characterized in that the blower fan is attached to the output shaft. A ventilation path for guiding the air sucked from the suction port to the blower fan;
The blower according to claim 7, wherein the holding body separates the ventilation path and the space in which the blower fan is housed.

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