JP6578388B2 - Hairdryer - Google Patents

Description

  The present invention relates to a dryer.

  Conventionally, as a dryer, a fan, a motor, and a heater are arranged in a casing having a suction port and a discharge port, and an outer filter and an inner filter are provided in the suction port, and between the outer filter and the inner filter. There is one in which a large garbage storage chamber is formed (Patent Document 1: Japanese Patent Laid-Open No. 6-46919).

JP-A-6-46919

  However, since the conventional dryer accumulates dust, dust, hair, etc. in the large dust storage chamber between the outer filter and the inner filter, the outer filter is removed from the casing for cleaning the dust. There is a problem that it must be cleaned and the cleaning property is poor.

  In addition, even if a large amount of garbage accumulates in a large garbage storage chamber between the outer filter and the inner filter, the conventional dryer is obstructed by the outer filter, and it is difficult for the user to notice the large amount of garbage. There is a problem of poor cleanability.

  Accordingly, an object of the present invention is to provide a dryer with good cleaning properties.

In order to solve the above problems, the dryer of the present invention is
In a dryer having a fan, a motor and a heater arranged in a casing having a suction port and a discharge port, the air sucked from the suction port is heated by the heater and discharged from the discharge port,
An outer filter provided at the suction port and having an opening defining portion defining the opening;
An inner filter that is disposed inside the outer filter in proximity to the outer filter and in which the opening defining portion defines the opening;
The opening defining part of the inner filter is opposed to at least a part of the opening of the outer filter.

  Here, the opening defining portion defines an opening, and refers to, for example, a punching metal type filter bar or a mesh type filter net.

  Further, in this specification, “proximity” means being in contact or having a positional relationship with a slight gap of 2 mm or less.

  In the dryer according to the present invention, the inner filter is disposed near the outer filter at the suction port, and the opening defining portion of the inner filter is opposed to at least a part of the opening of the outer filter. Good and excellent removal performance of dust, dust and hair.

It is sectional drawing of the dryer of one Embodiment of this invention. It is an expanded sectional view of the II part of FIG. It is a disassembled perspective view of a filter unit. FIG. 4 is an enlarged exploded perspective view of a part of FIG. 3. It is a schematic diagram which shows the overlap of an outer filter and an inner filter.

(First embodiment)
Hereinafter, the present invention will be described in detail with reference to the illustrated embodiments.

  As shown in FIG. 1, the dryer of this embodiment includes a fan 20, a motor 30, and the like in order from the suction port 11 side to the discharge port 12 side in the casing 10 having the suction port 11 and the discharge port 12. A heater 40 and an ion generation unit 50 are arranged.

  The fan 20 is an axial fan and is disposed inside a cylindrical fan case 21. The cylindrical fan case 21 is fixed to the casing 10.

  The motor 30 is fixed to the fan case 21 and drives the fan 20 to rotate.

  The heater 40 is attached to a heater substrate 42 fixed to the heat insulating sleeve 41 so as not to contact the heat insulating sleeve 41. The heat insulating sleeve 41 is fixed to the casing 10.

  The ion generating unit 50 is disposed between a portion of the casing 10 near the discharge port 12 and the heat insulating sleeve 41, and the positive and negative electrodes 51, 51 protrude inside the heat insulating sleeve 41. Then, discharge is generated between the positive and negative electrodes 51 and 51 to generate ions, so that the ions join the airflow near the discharge port 12.

  A handle 15 is turnably attached to the casing 10 via a shaft 16. The handle 15 is provided with a button 17 for setting a hot air mode, a cold air mode, a static electricity removing cool air mode, and the like.

  On the other hand, in the suction port 11 of the casing 10, as shown in FIGS. 1 and 2, a substantially punched disc-like punching metal 60 as an example of an outer filter and a substantially disc-like metal as an example of an inner filter. And a mesh filter 70 made of metal. The mesh filter 70 is located inside the punching metal 60 and is close to the inner surface of the punching metal 60 over substantially the entire surface. More specifically, for example, the mesh filter 70 is in contact with the inner surface of the punching metal 60 over substantially the entire surface.

  In this specification, “adjacent” means being in contact or having a positional relationship with a slight gap of 2 mm or less.

  As shown in FIGS. 2, 3 and 4, the punching metal 60 and the metal mesh filter 70 are sandwiched and fixed between a first resin ring 80 and a second resin ring 90. The first ring 80 includes a cylindrical portion 82 having a substantially cylindrical shape, a flange portion 83 that is curved from the cylindrical portion 82 and extends radially inward, and a plurality of engagement members provided at equal intervals in the circumferential direction on the cylindrical portion 82. And a mating hole 81 (see FIGS. 3 and 4). As shown in FIG. 4, the second ring 90 has a substantially cylindrical cylindrical portion 92 and a flange portion 93 extending radially inward from the cylindrical portion 92. A plurality of hook-like engaging claws 91 that are provided at equal intervals in the direction and project in the axial direction are provided. The plurality of engaging claws 91 of the second ring 90 are engaged with the plurality of engaging holes 81 of the first ring 80, respectively, and the second ring 90 and the first ring 80 are made of the punching metal 60 and the metal. Are fixed to each other with the mesh filter 70 interposed therebetween. Thus, the punching metal 60, the metal mesh filter 70, the first ring 80, and the second ring 90 are integrated to form the filter unit 100.

  As shown in FIG. 2, the first ring 80 of the filter unit 100 is detachably fitted to the support member 18 fixed to the casing 10, and the filter unit 100 is detachably attached to the casing 10. ing.

  However, although not shown, the second ring 90 of the filter unit 100 may be detachably fitted to the casing 10.

  On the other hand, as shown in FIG. 4 in which FIG. 3 is enlarged, the punching metal 60 includes a plurality of hexagonal openings 61 arranged in an orderly manner and a bar as an example of an opening demarcating portion that delimits the hexagonal openings 61. 62. The metal mesh filter 70 has a plurality of rectangular openings 71 arranged in an orderly manner, and a mesh line 72 as an example of an opening defining portion that defines the rectangular openings 71. The area of each hexagonal opening 61 of the punching metal 60 as the outer filter is larger than the area of each rectangular opening 71 of the metal mesh filter 70 as the inner filter.

  Further, the punching metal 60 and the metal mesh filter 70 are sandwiched between the flange portion 93 of the second ring 90 and the flange portion 83 of the first ring 80, and fixed to each other. The mesh line 72 of the metal mesh filter 70 is opposed to, in other words, overlaps with a partial region of the opening 61. The width of the hexagonal opening 61 of the punching metal 60 is larger than the diameter of the mesh wire 72. When the hexagonal opening 61 is viewed from the outside, the mesh wire 72 divides the hexagonal opening 61. looks like. Of the plurality of rectangular openings 71 of the metal mesh filter 70, the punching metal 60 and the metal mesh filter 70 are fixed to each other by the second ring 90 and the first ring 80. At least a part of the rectangular opening 71 overlaps the crosspiece 62 of the punching metal 60, and when viewed from the outside, the rectangular opening 71 appears smaller than the actual area.

  The metal mesh filter 70 as the inner filter is, for example, 20 mesh and the aperture ratio is 60%. On the other hand, the punching metal 60 as the outer filter is equivalent to, for example, 10 mesh of a metal mesh filter, but the opening defining portion is wide, so the opening ratio is 51.5%. Therefore, the aperture ratio of the metal mesh filter 70 is larger than the aperture ratio of the punching metal 60, and the flow loss is reduced so that the intake efficiency is not lowered.

  The metal mesh filter 70 may be, for example, 22 meshes and an aperture ratio of 56%, or 24 meshes and an aperture ratio of 52%.

  As shown in FIG. 1, a safety grill 14 is provided at the discharge port 12 of the casing 10.

In the dryer configured as described above, when the hot air mode is selected by operating the button 17 of the handle 15 and the motor 30 and the heater 40 are driven, the fan 20 rotates and the air passes through the outer filter 60 and the inner filter 70. And sucked into the fan 20 side. Then, the air is heated by the heater 40, and the heated air is discharged from the discharge port 12.

  When the button 17 is operated to select the cold air mode, only the motor 30 and the fan 20 are driven to discharge the cold air from the discharge port 12, and when the static elimination cold air mode is selected, The motor 30, the fan 20, and the ion generation unit 50 are driven to discharge between the positive and negative electrodes 51, 51 to generate ions, and the ions join the cold air near the discharge port 12.

  As described above, when the hot air mode, the cold air mode, the neutralizing cold air mode, or the like is selected and the fan 20 is driven, when the air passes through the punching metal 60 and the metal mesh filter 70, the punching metal 60 Also, dust, dust, hair and the like are removed by the metal mesh filter 70, and almost no air is sent to the fan 20 side.

  At this time, dust, dust, hair, and the like are captured by the punching metal 60 and the metal mesh filter 70, but the metal mesh filter 70 is in contact with the entire inner surface of the punching metal 60. In addition, since there is substantially no large space in which dust or the like accumulates between the punching metal 60 and the metal mesh filter 70, the captured dust or the like can be easily visually recognized from the outside of the punching metal 60. Can do.

  Further, since dust, dust, hair, and the like captured by the punching metal 60 and the metal mesh filter 70 are located in the vicinity of the punching metal 60, the punching metal 60 and the metal mesh filter 70 are removed. Without removal, it can be easily cleaned from the outside of the punching metal 60 with a vacuum cleaner or a brush.

  Therefore, the dryer of this embodiment is extremely clean because the captured dust and the like can be surely seen from the outside of the punching metal 60 and can be easily removed from the outside of the punching metal 60 with an electric vacuum cleaner or a brush. The property is excellent.

  Further, the mesh wire 72 of the metal mesh filter 70 is opposed to a partial region of the opening 61 of the punching metal 60, and when viewed from the outside, the opening 61 of the punching metal 60 is formed with the metal mesh filter. 70, and the area of each opening 71 of the metal mesh filter 70 located on the downstream side is smaller than the area of each opening 61 of the punching metal 60 located on the upstream side. This means that, for all the openings 61 of the punching metal 60, the mesh line 72 of the metal mesh filter 70 is opposed to a partial region of each opening 61 of the punching metal 60. The removal performance for dust, dust, hair, and the like is improved, and suction to the fan 20 side can be reliably prevented. In particular, it is possible to reliably prevent the hair from being sucked into the fan 20 side. An enlarged view of this structure is schematically shown in FIG.

  Further, although the area of each opening 71 of the metal mesh filter 70 is smaller than the area of each opening 61 of the punching metal 60, the opening ratio of the metal mesh filter 70 is larger than the opening ratio of the punching metal 60. Therefore, the metal mesh filter 70 in the total area of each opening is larger than the punching metal 60, the flow resistance is reduced, and the intake efficiency can be increased.

In this embodiment, the plurality of engagement claws 91 of the second ring 90 are respectively engaged with the plurality of engagement holes 81 of the first ring 80, and the second ring 90 and the first ring 80 are punched. The metal 60 and the metal mesh filter 70 are sandwiched and fixed to each other. The punching metal 60, the metal mesh filter 70, the first ring 80 and the second ring 90 are integrated to form the filter unit 100. The first ring 80 of the filter unit 100 is detachably fitted to a support member fixed to the casing 10 so that the filter unit 100 is detachably attached to the casing 10.

  Therefore, the filter unit 100 can be removed from the casing 10 and maintenance such as replacement of the punching metal 60 and the metal mesh filter 70 can be simplified.

(Second Embodiment)
In the above embodiment, the punching metal 60 having the hexagonal opening 61 is used as the outer filter, and the metal mesh filter 70 having the rectangular opening 71 is used as the inner filter. However, the shape of the outer filter and the inner filter opening is used. May have any shape such as a rectangle, a circle, a hexagon, and the like.

  In the first embodiment, the outer filter is a punching metal and the inner filter is a mesh filter. However, both may be a punching metal or a mesh filter.

  Further, the outer filter and the inner filter are not limited to metal, and may be formed of resin, fiber, or the like.

  Further, the outer filter 60 may be made of a resin integrally formed with the second ring 90 made of resin.

(Third embodiment)
Moreover, in the said embodiment, although the metal mesh filter 70 as an inner filter was made to contact substantially the whole inner surface of the punching metal 60 as an outer filter, an inner filter adjoins with an outer filter with a clearance gap. It may be allowed. This gap can be appropriately adjusted with shims, spacers, etc. in consideration of dust cleaning properties and reduction of flow resistance.

  The gap between the outer filter and the inner filter is preferably smaller than the average opening diameter of the outer filter in consideration of usability. For example, in the case of the punching metal 60 of the first embodiment, it is 2 mm. Furthermore, considering practicality, the accumulation of dust can be reduced, and the range in which a commercially available cleaning brush can be used is preferable, and 5 mm or less is preferable.

(Fourth embodiment)
Moreover, in the said embodiment, although the area of each opening 71 of the metal mesh filter 70 as an inner filter was made smaller than the area of each opening 61 of the punching metal 60 as an outer filter, The area of each opening 71 may be equal to the area of each opening 61 of the outer filter 60.

(Fifth embodiment)
In the above embodiment, the punching metal 60 as the outer filter, the metal mesh filter 70 as the inner filter, the first ring 80 and the second ring 90 are integrated to constitute the filter unit 100, and this filter unit 100 Although the filter unit 100 is not configured, the outer filter and the inner filter may be separately attached to the casing.

  The present invention and the embodiment are summarized as follows.

The dryer of this invention is
In a dryer in which a fan 20, a motor 30 and a heater 40 are arranged in a casing 10 having a suction port 11 and a discharge port 12, and the air sucked from the suction port 11 is heated by the heater 40 and discharged from the discharge port 12. ,
An outer filter 60 provided in the suction port 11 and having an opening defining portion 62 defining an opening 61;
The inner filter 70 is disposed inside the outer filter 60 in proximity to the outer filter 60, and the opening defining portion 72 defines the opening 71.
The opening defining portion 72 of the inner filter 70 is opposed to at least a part of the opening 61 of the outer filter 60.

  In the dryer configured as described above, when the fan 20 is driven, dust, dust, hair, and the like are removed by the outer filter 60 and the inner filter 70 when air passes through the outer filter 60 and the inner filter 70. Thus, almost no air is sent to the fan 20 side.

  At this time, dust, dust, hair, and the like are captured by the outer filter 60 and the inner filter 70. However, since the inner filter 70 is disposed close to the inner side of the outer filter 60, There is substantially no large space in which dust or the like accumulates between the inner filter 70 and the captured dust or the like is located in the vicinity of the outer filter 60 and can be easily visually recognized from the outside of the outer filter 60. .

  In addition, since dust or the like captured by the outer filter 60 and the inner filter 70 is located in the vicinity of the outer filter 60, the outer filter 60 and the inner filter 70 can be removed from the casing 10 without removing the outer filter 60 and the inner filter 70. From the outside, it can be easily cleaned with a vacuum cleaner or a brush.

  Therefore, the dryer of the present invention is capable of reliably seeing captured dust, dust, hair, and the like from the outside of the outer filter 60 and easily removing from the outside of the outer filter 60 with a vacuum cleaner or a brush. Excellent cleaning properties.

  Further, the opening defining portion 72 of the inner filter 70 is opposed to a partial region of the opening 61 of the outer filter 60, and when viewed from the outside, the opening 61 of the outer filter is defined as the opening defining portion 72 of the inner filter 70. Therefore, dust, dust, hair, and the like can be effectively removed, and suction to the fan 20 side can be reliably prevented. In particular, it is possible to reliably prevent the hair from being sucked into the fan 20 side.

In one embodiment,
The area of each opening 71 of the inner filter 70 is smaller than the area of each opening 61 of the outer filter 60.

  According to the above embodiment, since the area of each opening 71 of the inner filter 70 located on the downstream side is smaller than the area of each opening 61 of the outer filter 60 located on the upstream side, dust, dust, hair, etc. are effective. Therefore, the suction to the fan 20 side can be surely prevented.

In one embodiment,
The aperture ratio of the inner filter 70 is larger than the aperture ratio of the outer filter 60.

  Further, even if the area of each opening 71 of the inner filter 70 is smaller than the area of each opening 61 of the outer filter 60, the opening ratio of the inner filter 70 is larger than the opening ratio of the outer filter 60. The metal mesh filter 70 in the total area of the openings is larger than the punching metal 60, the flow resistance is reduced, and the intake efficiency can be increased.

In one embodiment,
For all the openings 61 of the outer filter 60, the opening defining portion 72 of the inner filter 70 is opposed to a partial region of each opening 61 of the outer filter 60.

  According to the above embodiment, the opening defining portion 72 of the inner filter 70 is opposed to a partial region of each opening 61 of the outer filter 60 with respect to all the openings 61 of the outer filter 60. All the openings 61 of the 60 can be finely divided by the opening defining portion 72 of the inner filter 70 to effectively remove dust, dust, hair and the like.

In one embodiment,
The outer filter 60 and the inner filter 70 are sandwiched and fixed between the first ring 80 and the second ring 90,
The outer filter 60, the inner filter 70, the first ring 80 and the second ring 90 constitute the filter unit 100,
The filter unit 100 is detachably attached to the casing 10.

  According to the embodiment, the outer filter 60, the inner filter 70, the first ring 80, and the second ring 90 constitute the filter unit 100, and the filter unit 100 is detachably attached to the casing 10. .

  Therefore, the filter unit 100 can be removed from the casing 10 and maintenance of the outer filter 60 and the inner filter 70 can be easily performed.

  It goes without saying that the constituent elements described in the above embodiments and modifications may be combined as appropriate, and may be selected, replaced, or deleted.

DESCRIPTION OF SYMBOLS 10 Casing 11 Suction inlet 12 Discharge outlet 20 Fan 30 Motor 40 Heater 60 Outer filter 70 Inner filter 61, 71 Opening 62, 72 Opening demarcation part 80 1st ring 90 2nd ring 100 Filter unit

Claims (5)

In a dryer having a fan, a motor and a heater arranged in a casing having a suction port and a discharge port, the air sucked from the suction port is heated by the heater and discharged from the discharge port,
An outer filter provided at the suction port and having an opening defining portion defining the opening;
An inner filter that is disposed inside the outer filter in proximity to the outer filter and in which the opening defining portion defines the opening;
The opening defining portion of the inner filter is opposed to at least a part of the opening of the outer filter,
The outer filter and the inner filter are sandwiched and fixed between the first ring and the second ring,
The outer filter, the inner filter, the first ring and the second ring constitute a filter unit,
The dryer , wherein the filter unit is detachably attached to the casing . The dryer according to claim 1,
The area of each opening of the inner filter is smaller than the area of each opening of the outer filter. The dryer according to claim 1 or 2,
The dryer characterized in that the opening ratio of the inner filter is larger than the opening ratio of the outer filter. The dryer according to any one of claims 1 to 3,
The dryer characterized in that the opening defining portion of the inner filter is opposed to a partial region of each opening of the outer filter for all the openings of the outer filter. In a dryer having a fan, a motor and a heater arranged in a casing having a suction port and a discharge port, the air sucked from the suction port is heated by the heater and discharged from the discharge port,
An outer filter provided at the suction port and having an opening defining portion defining the opening;
An inner filter that is disposed in the vicinity of the outer filter and is adjacent to the outer filter, and the opening defining portion defines the opening;
The opening defining portion of the inner filter is opposed to at least a part of the opening of the outer filter,
The inner filter is sandwiched and fixed between the first ring and the second ring,
The outer filter is integrally formed with the second ring,
The outer filter, the inner filter, the first ring and the second ring constitute a filter unit,
The dryer, wherein the filter unit is detachably attached to the casing.

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