JP5511771B2 - Clothes dryer - Google Patents

Description

  The present invention relates to a clothes dryer for drying clothes put in a rotating drum with heated air.

  In this type of clothes dryer, clothes are put into a rotating drum and the clothes inside are stirred by the rotation of the rotating drum. At this time, heated air is supplied into the rotating drum and moisture generated from the clothes is rotated. The clothes are dried by discharging them to the outside of the drum.

  By the way, lint etc. generate | occur | produce from the clothes stirred in a rotating drum. When this lint enters the exhaust passage for exhausting moisture from the inside of the rotating drum, it adheres to and accumulates on the inner wall of the exhaust passage and blocks the exhaust passage and inhibits the flow of heated air. Conceivable. Therefore, a waste thread filter is provided on the rear side of the rotary drum to collect the waste thread generated during drying. Generally, this type of rotating drum is provided in a posture that is horizontal to the rotation axis, and clothes are taken in and out from the opened front end, so that the waste thread filter is provided on the rear end surface of the rotating drum.

  However, since the lint filter is clogged by the collected lint, it is necessary to remove the lint filter from the rotating drum and clean it. At this time, if the lint filter is provided on the rear side of the rotary drum, it is difficult for the operator to reach, and the lint filter cannot be removed and attached smoothly. bad.

  Therefore, there has been known one in which a lint filter is disposed on an open / close door that opens and closes the front end of the rotary drum. According to this, since the lint filter can be removed and attached by hand when the open / close door is opened, the careability of the lint filter can be improved.

JP-A-6-114196

  However, although the lint filter is provided on the opening / closing door, the careability thereof is improved, but a part of the moisture drainage passage must be provided inside the opening / closing door, and the thickness of the opening / closing door increases. For this reason, there is an inconvenience that the distance from the front end of the open / close door to the rear end of the main body case (depth dimension) becomes large and the clothes dryer becomes large.

  In order to avoid such an increase in the size of the clothes dryer, it is necessary to reduce the depth dimension of the main body case by the increase in the thickness of the opening / closing door. However, even if the depth dimension of the main body case is shortened, it is necessary to secure an installation space for the air supply / exhaust fan on the rear side of the rotating drum, so that it is necessary to reduce the dimension of the rotating drum in the rotational axis direction. . As a result, the volume of the rotating drum is reduced, and there is a disadvantage that the drying efficiency is lowered because the amount of clothes that can be input is small.

  In view of the above points, an object of the present invention is to provide a clothes dryer that can be provided with a lint filter on an open / close door without reducing the volume of a rotating drum, and can achieve both drying efficiency and careability. And

In order to achieve such an object, the present invention includes a main body case, an opening / closing door provided on the front surface of the main body case, and a posture that is rotatably provided in the main body case and the rotation axis extends in the front-rear direction. A rotary drum that has a front end opened and closed by the open / close door and accommodates clothes therein, a exhaust passage that communicates with the start end of the rotary drum and exhausts moisture in the rotary drum, A waste thread filter provided at the start end, a heated air introduction path for introducing heated air into the rotating drum, and an air flow from the heated air introduction path to the exhaust passage through the rotating drum are forced in clothes dryer comprising: a forced air supply and exhaust means for generating, and heating means for heating the air introduced into the rotary drum, a gas burner provided as the heating means, the lint filter, provided on the door The exhaust Shimero via the inside of the door to extend into the interior of the main body case, the forced air supply and exhaust means, disposed radially outside the rotary drum in the interior of the main body case, wherein A moisture exhaust path is connected to the first moisture exhaust duct extending upward inside the open / close door, and to the first moisture exhaust duct with the open / close door closed, and in the front-rear direction above the rotating drum in the main body case The forced exhaust air supply means is provided in the second exhaust duct located above the rotary drum, and the downstream end of the second exhaust duct is connected to the main body case. It is characterized by being a moisture exhaust opening that opens outward .

  According to this, the forced air supply / exhaust means conventionally provided on the rear side of the rotating drum is disposed on the radially outer side of the rotating drum in the present invention. It is not necessary to provide a space for providing the. Therefore, even if the opening / closing door is provided with a part of the lint filter and the drainage passage and the thickness dimension of the opening / closing door is increased, the depth dimension of the main body case can be reduced without reducing the rotating drum. Therefore, according to the present invention, even if a lint filter is provided on the open / close door, it is possible to prevent the drying efficiency from being lowered, and it is possible to provide an easy-to-use clothes dryer that achieves both drying efficiency and care. .

Furthermore, according to the above configuration, the second moisture exhaust duct is positioned above the rotating drum, and the first moisture exhaust duct guides the airflow upward inside the opening / closing door. Thus, since the exhaust passage is configured along the upward flow of heated air, a sufficient air flow can be generated even if the supply / exhaust capacity of the forced supply / exhaust means is set relatively low, The forced air supply / exhaust means can be reduced in size. Therefore, the forced air supply / exhaust means can be installed in the second exhaust duct even in a relatively narrow space, and the forced air supply / exhaust means is arranged on the outer side in the radial direction of the rotating drum without reducing the rotating drum. Can be set.

  Moreover, it is preferable that the said forced air supply / exhaust means provided in a said 2nd exhaust_gas | exhaustion duct is a centrifugal ventilation fan, and is provided in the attitude | position in which the rotating shaft line faces a perpendicular direction. Specific examples of the centrifugal blower fan include a sirocco fan and a turbo fan. The forced air supply / exhaust means is a centrifugal blower fan, so that an air volume can be obtained even under a high static pressure, and the second exhaust moisture Airflow can be reliably generated inside the duct. In addition, since the centrifugal blower fan is provided in a posture in which the rotation axis thereof is oriented in the vertical direction, the intake direction of the centrifugal blower fan and the upward flow of the heated air match, and the supply and exhaust efficiency is improved. Thereby, supply of heated air into the rotary drum and moisture removal can be performed smoothly, and the drying efficiency of clothes can be improved.

  Further, in the present invention, when the open / close door includes a filter case that removably supports the waste thread filter and protrudes inward of the main body case, the filter case includes the rotating drum. It is preferable to cover one end of the rotating drum which is located in front of the outer side in the rotation axis direction and is opened and closed by the opening and closing door. According to this, since the filter case does not protrude into the rotary drum, the clothes being stirred in the rotating rotary drum during the drying operation are not caught by the filter case, and the clothes being dried are drained. Can be prevented.

The typical block diagram of the clothes dryer of one Embodiment of this invention.

  As shown in FIG. 1, a clothes dryer 1 according to this embodiment includes a rotating drum 3 that houses clothes S that is an object to be dried inside a main body case 2. The rotary drum 3 is rotatably supported by a part of the rotary support frame 4 shown in the figure, and has a rotational axis extending horizontally in the front-rear direction. A drive motor 6 that rotationally drives the rotary drum 3 via a belt 5 is provided inside the main body case 2 and below the rotary drum 3.

  Further, inside the main body case 2, there are a gas burner 7 (heating means), a combustion casing 8 that accommodates the gas burner 7, and a heated air introduction duct 9 (heating air introduction path) that is provided above the combustion casing 8. Is provided. On the side surface of the main body case 2, an air intake 10 is provided for taking outside air into the main body case 2.

  The fuel gas is supplied to the gas burner 7 through the valve device 12 through the gas supply path 11. Although not shown, the combustion housing 8 is provided with an ignition electrode for igniting the gas burner 7 and sensors for detecting misfire and overheating. The combustion operation is performed by a controller 13 provided inside the main body case 2. Controlled by

  A heated air outlet 9a is formed on the front side of the upper end of the heated air introduction duct 9 so as to face a part of the rear surface of the rotary drum 3, and air taken in from the air inlet 10 is supplied to the rear side. An air supply hole 9b is formed. Thereby, the heated air introduction duct 9 mixes the combustion exhaust gas of the gas burner 7 with the air taken in through the air intake 10 and the air supply hole 9b, and uses this as heated air from the heated air outlet 9a to the rotating drum 3. Supply inside.

  A large number of ventilating small holes 3 a are formed on the back surface of the rotating drum 3. Thereby, even if the rotating drum 3 is rotating, the supply of the heating air to the inside of the rotating drum 3 is maintained through the small hole 3a at a position facing the heating air outlet 9a of the heating air introduction duct 9, The heated air introduction duct 9 and the rotating drum 3 are substantially connected. The small hole 3a is formed on the back surface of the rotary drum 3 over the entire circumference. However, the small hole 3a is closed in the main body case 2 except for the position facing the heated air outlet 9a of the heated air introduction duct 9. It is closed by the plate 2a.

  The main body case 2 includes a front panel 14 that constitutes a front wall. The front panel 14 is provided with a clothing outlet 15 that opens in a circular shape corresponding to the opened front end of the rotary drum 3.

  On the front surface of the main body case 2, an opening / closing door 16 that overlaps with a part of the front panel 14 and an operation panel 17 that is integrally fixed to the other part of the front panel 14 below the opening / closing door 16 are provided. . The operation panel 17 is provided with an operation switch and a display unit (not shown) so that the user can set various modes of desired drying operation and check the operation state such as the remaining timer time.

  One side edge side of the open / close door 16 is connected to the front panel 14 of the main body case 2 through a hinge (not shown) so as to be opened and closed. In addition, a first moisture exhaust duct 18 for deriving moisture from the inside of the rotary drum 3 is provided inside the open / close door 16. When the open / close door 16 is closed (the state shown in FIG. 1), the first moisture exhaust duct 18 communicates with the rotary drum 3 via the clothing entrance 15 and extends upward from the upstream end to the downstream end. Yes.

  A waste thread filter 19 is provided at the upstream end of the first moisture exhaust duct 18. The lint filter 19 is detachably held by a filter case 20 that is provided on the inner surface side (main body case 2 side) of the open / close door 16 and protrudes into the clothes insertion / removal port 15. Thus, when the open / close door 16 is opened, the filter case 20 is exposed, and the lint filter 19 can be attached and detached at hand, so that the lint filter 19 can be cleaned and replaced very easily.

  The filter case 20 protrudes into the clothing entrance 15, but the front end surface 20 a in the protruding direction is outside the substantial front end 3 b (the front end of the space where the clothing S can be stored) in the rotating drum 3. (Front). As a result, the filter case 20 does not protrude into the rotary drum 3, and a situation in which the clothing S is caught on the filter case 20 and blocks the first moisture exhaust duct 18 can be prevented.

  Furthermore, it is preferable that the filter case 20 is formed to have an outer diameter slightly smaller than the inner diameter of the clothes taking-in / out opening 15. According to this, the clearance gap formed between the outer peripheral surface of the filter case 20 and the inner peripheral surface of the clothing entrance / exit 15 can be made small, and the situation where the clothing S invades into this clearance gap and is caught is avoided. Can do.

  A second moisture exhaust duct 21 extending in the front-rear direction is provided inside the main body case 2. The second moisture exhaust duct 21 is disposed in the space above the rotating drum 3 inside the main body case 2. When the open / close door 16 is closed, the downstream end of the first exhaust duct 18 and the upstream end of the second exhaust duct 21 are connected to each other via a connecting hole 22 formed through the front panel 14. The The 1st moisture exhaust duct 18 and the 2nd moisture exhaust duct 21 comprise the moisture exhaust path of this invention.

  The downstream end of the second moisture exhaust duct 21 is a moisture exhaust port 23 that opens upward outside the main body case 2, and an exhaust cylinder (not shown) extending outdoors is provided in the moisture exhaust port 23. Connected.

  The second exhaust duct 21 is provided with a supply / exhaust fan 24 (forced supply / exhaust means). The air supply / exhaust fan 24 is a centrifugal blower fan such as a sirocco fan or a turbo fan that is rotationally driven by a fan motor 25, and is provided in a posture in which the rotation axis is directed in the vertical direction.

  The second exhaust duct 21 and the air supply / exhaust fan 24 are shown in the position immediately above the rotating drum 3 in FIG. 1 for convenience of explanation, but in actuality, they are formed at the upper corners of the main body case 2. Arranged in space. This space is formed when the cylindrical rotary drum 3 is accommodated in the rectangular parallelepiped main body case 2. By housing the second exhaust duct 21 and the air supply / exhaust fan 24 in this space, the second exhaust duct 21 and the air supply / exhaust fan 24 can be positioned above the rotary drum 3, and the rotary drum 3 is made smaller. Without this, the height dimension of the main body case 2 can be kept low.

  The clothes dryer 1 having the above configuration rotates the rotating drum 3 by the drive motor 6, operates the air supply / exhaust fan 24 by the fan motor 25, and burns the gas burner 7, whereby the clothes housed in the rotating drum 3. A drying process of S is performed.

  That is, when the supply / exhaust fan 24 of the second exhaust duct 21 is operated, an air flow is generated in the first exhaust duct 18, the rotary drum 3, and the heated air introduction duct 9 communicating with the second exhaust duct 21. . Thus, first, in the heated air introduction duct 9, the combustion exhaust gas from the gas burner 7 and the air supplied from the air supply hole 9b are mixed to generate heated air, and this heated air is introduced into the heated air guide. It is led out toward the rotary drum 3 from the outlet 9a. Then, heated air is introduced into the rotary drum 3 through a small hole 3 a formed on the back side of the rotary drum 3. Inside the rotating drum 3, the clothing S is exposed to flowing heated air (warm air), and the clothing S is dried.

  Next, the moisture generated inside the rotary drum 3 as the clothes S are dried moves together with the warm air to the first moisture exhaust duct 18. At this time, lint, dust and the like that have come out of the clothing S are captured by the lint filter 19. The moisture led out from the rotary drum 3 to the first exhaust duct 18 further moves to the second exhaust duct 21 and is discharged from the exhaust port 23.

  As described above, the clothes dryer 1 is provided with the air supply / exhaust fan 24 above the rotary drum 3, so that an accommodation space for a supply / exhaust fan, a motor, and the like is provided on the back side of the rotary drum 3 in the main body case 2. It becomes unnecessary. Therefore, if this space is eliminated and the depth dimension of the main body case 2 is reduced, the main body case 2 can be made compact without reducing the volume of the rotary drum 3. For this reason, even if the thickness dimension of the door 16 is increased by providing the first exhaust duct 18 inside, the rotary drum 3 having a sufficient capacity is provided without increasing the depth dimension of the clothes dryer 1. be able to.

  Further, the first moisture exhaust duct 18 guides the air from the rotary drum 3 upward, and in the second moisture exhaust duct 21 above the rotary drum 3, an air supply / exhaust fan 24 having a posture in which the rotation axis is in the vertical direction is provided. Since air is sucked upward, the air supply / exhaust fan 24 can form an air flow along the upward flow of heated air. Thereby, the supply / exhaust by the supply / exhaust fan 24 can be performed very efficiently. Alternatively, for example, a small air supply / exhaust fan 24 having a relatively small air supply / exhaust capacity can be used to provide an empty space in the main body case 2, and a large capacity rotating drum 3 can be provided using the empty space, The drying efficiency of S can be improved.

  In the present embodiment, the supply / exhaust efficiency is improved by arranging the supply / exhaust fan 24 above the rotary drum 3, but the supply / exhaust fan 24 is not limited to this, and the supply / exhaust fan 24 is not limited to this. What is necessary is just to provide in a radial direction outer side.

DESCRIPTION OF SYMBOLS S ... Clothing, 1 ... Clothes dryer, 2 ... Main body case, 3 ... Rotating drum, 7 ... Gas burner (heating means), 9 ... Heated air introduction duct (heated air introduction path), 16 ... Opening / closing door, 18 ... 1st Humidity exhaust duct (humidity exhaust path), 19 ... lint filter, 20 ... filter case, 21 ... second moisture exhaust duct (humidity exhaust path ), 23 ... moisture exhaust port, 24 ... air supply / exhaust fan (forced air supply / exhaust means) .

Claims (3)

A main body case, an opening / closing door provided on a front surface of the main body case, and a posture that is rotatably provided in the main body case so that a rotation axis extends in the front-rear direction, and a front end is opened / closed by the opening / closing door; A rotary drum for storing clothes, a drainage path for communicating the start end in the rotary drum to discharge moisture in the rotary drum, a waste thread filter provided at the start end of the drainage path, and the rotation A heated air introduction path for introducing heated air into the drum, a forced supply / exhaust means for forcibly generating an air flow from the heated air introduction path to the exhaust passage through the rotary drum, and the rotary drum In a clothes dryer comprising heating means for heating air introduced into
A gas burner is provided as the heating means,
The lint filter is provided on the open / close door,
The moisture drainage path is extended inside the main body case via the inside of the open / close door,
The forced air supply / exhaust means is disposed on the radially outer side of the rotating drum inside the main body case ,
The exhaust passage is connected to the first exhaust duct extending upward inside the open / close door and the first exhaust duct in a state where the open / close door is closed. A second exhaust duct extending in the direction,
The forced air supply / exhaust means is provided in the second exhaust duct located above the rotary drum,
A clothes dryer, wherein a downstream end of the second moisture exhaust duct is a moisture exhaust opening that opens outward from the main body case . A clothes dryer according to claim 1,
The forced air supply / exhaust means is a centrifugal blower fan, and is provided in a posture in which a rotation axis is directed in a vertical direction . The clothes dryer according to claim 1 or 2, wherein the open / close door includes a filter case that removably supports the lint filter and protrudes inward of the main body case.
The clothes drier according to claim 1, wherein the filter case covers one end of the rotating drum that is positioned forward of the rotating drum in the rotation axis direction and is opened and closed by the opening / closing door .

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