JPH0646476Y2 - Dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial field of application) The present invention relates to a dryer having a structure in which exhaust air from a drying chamber is heat-exchanged with outside air by means of a double-bladed fan.

(Prior Art) In this type of dryer, an exhaust introduction chamber and an outside air introduction chamber are formed by a double-bladed fan and a partition plate located around the fan via sealing means at the rear of the machine. is doing. Then, by the air blowing action of the fan, the exhaust air from the drum, which is the drying chamber, is introduced into the exhaust gas introduction chamber and the outside air is introduced into the outside air introduction chamber, whereby the exhaust air and the outside air are circulated on both sides of the fan to both sides. Heat is exchanged between them via a fan. In this case, as the sealing means that hermetically seals between the exhaust introduction chamber and the outside air introduction chamber,
An annular slide contact member is fitted on the inner peripheral portion of the partition plate, and a seal member is attached on the outer peripheral end of the fan, and the seal member is brought into sliding contact with the slide contact member. In this case, the exhaust gas in the exhaust gas introduction chamber is dehumidified by the heat exchange described above, and the water generated by the dehumidification is discharged from the drain port formed in the exhaust gas introduction chamber.

However, in the above configuration, since the sliding contact member is fitted to the inner peripheral portion of the partition plate, a slight gap is inevitably formed between the two. For this reason, part of water may leak to the outside air introduction chamber side of the partition plate due to the pressure difference between the exhaust air introduction chamber and the outside air introduction chamber or the like, leaking through the gap, that is, from the sealing means. In this case, there is a problem that the leaked water flows down along the partition plate, wets the bottom of the machine, and then leaks to the outside of the machine to wet the floor surface and the like.

As a solution to this, the one disclosed in Japanese Utility Model Laid-Open No. Sho 63-58993 is provided. In this, a recess extending outward is formed at the lowermost portion of the inner peripheral surface of the partition plate,
The water leaked from the sealing means is guided by the concave portion and drained, and a water receiver is arranged below the partition plate. The water receiver guides the water through the concave portion to the outside air introducing chamber side of the partition plate. The water flowing down along with the water discharged from the drain port of the exhaust gas introducing chamber is received, and the water is discharged from the drain port formed in the water receiver.

(Problems to be solved by the invention) However, in the above-mentioned conventional configuration, in order to receive the water that has leaked from the sealing means and has flowed down along the outside air introduction chamber side of the partition plate, a water receiver must be provided below the partition plate. Must
There has been a problem that the cost is increased accordingly.

Therefore, an object of the present invention is to provide a dryer which can prevent the bottom portion or the floor surface inside the machine from getting wet by water leaking from the sealing means and can realize it at low cost.

[Structure of the Invention] (Means for Solving the Problems) The dryer of the present invention has an exhaust gas introduction chamber and an external air introduction inside the machine by means of a double-bladed fan and a partition plate located around the fan via sealing means. A partition is formed between the chamber and the chamber, and the exhaust air from the drying chamber is introduced into the exhaust gas introducing chamber by the air blowing action of the fan to introduce the outside air into the outside air introducing chamber so that heat is exchanged through the fan. The water leaking from the sealing means is drained by an outwardly extending recess formed at the bottom of the inner peripheral surface of the partition plate, and a hole is formed in the partition plate below the recess. It is characterized in that a ventilation blocking portion capable of passing water is provided so as to close the hole.

(Operation) According to the above means, the water leaked from the sealing means is guided by the concave portion of the inner peripheral surface portion of the partition plate, is drained, flows down along the outside air introduction chamber side of the partition plate, and then flows below the concave portion. Return to the exhaust gas introduction chamber through the hole located. For this reason, it is possible to prevent the bottom of the machine or the floor surface from getting wet with the leaked water. Then, there is no need to receive the water flowing down along the outside air introducing chamber side of the partition plate, and the water in the exhaust introducing chamber is
The conventional water receiver can be dispensed with because it is possible to discharge the condensed water during heat exchange from the existing discharge port provided on the exhaust introduction chamber side to the outside of the machine. Moreover, in this case, since the hole is closed by the ventilation block capable of passing water, it is possible to prevent the exhaust gas in the exhaust gas introducing chamber from entering the outside air introducing chamber through the hole.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings.

First, in FIG. 2, reference numeral 1 is a main body, for example, an outer box, which is composed of an outer box main part 2 and a cover 3 for closing a rear opening of the outer box main part 2. Outer box main part 2
Is composed of an upper cover portion 4 and a body portion 5 having a substantially U-shaped cross section. As shown in FIG. 4, the upper cover part 4 is formed with an entrance / exit 4a for clothes, for example, clothes. In addition, the upper cover 4 has a doorway 4a.
The lid 6 is provided so as to open and close, and an operation panel (not shown) is provided. Now, the unit 7 shown in FIG. 3 is a unit covered by the outer box 1 described above, and this unit 7 will be described below.

In FIG. 3, 8 is a base plate made of, for example, plastic, and 9 is a motor fixed to the base plate 8 via a motor support 10. At the rear end of the base plate 8, one support plate 11 is erected by screwing. At the front end of the base plate 8, the other support plate 12 is erected by screwing so as to face the support plate 11. Reference numeral 13 denotes a casing, which is supported by screwing the lower end portions of the front and rear portions thereof to support arm portions 11a and 12a provided on the support plates 11 and 12, respectively. A double-bladed fan 14 is rotatably arranged in the casing 13. Reference numeral 15 is a drum support member, and the lower ends of the front and rear portions thereof are supported by being screwed to support arm portions 11b (only one of which is shown) projecting from the support plates 11 and 12.

Reference numeral 16 is a drum having an inside as a drying chamber. This has a shaft portion 17 provided at the center of the right side surface in FIG.
It is rotatably provided between the drum support member 15 and the casing 13 by supporting the drum support member 15 through the bearing 19 and the drum support member 15 through the bearing 19. Now, in the body part of the drum 16,
An opening 16a (see FIG. 4) corresponding to and approximately the same size as the entrance / exit 4a is formed.
A drum lid 20 is provided slidably in the circumferential direction so as to open and close (see FIG. 3).

Further, as shown in FIGS. 1 and 3, the drum support member
A mounting member 21 is provided at an intermediate portion of the left end portion of 15 so as to face the body portion of the drum 16. 22 is one position sensor consisting of a Hall element, for example,
It is arranged on the back surface of 21 so as to face the body of the drum 16. Reference numeral 23 denotes one magnet, which is attached to the body of the drum 16 so as to form a pair with the one position sensor 22. Further, a mounting member 24 is provided on the upper end of the drum support member 15 so as to face the body portion of the drum 16. The other position sensor 25 is, for example, a Hall element, and is arranged on the rear surface of the mounting member 24 so as to face the body of the drum 16. 26 is the other magnet paired with the other position sensor 25, which is a drum
It is attached to 16 drum lids 20. Position sensor 22
When the magnet 26 is in close proximity, and when the doorway 4a
When the opening 16a and the opening 16a are aligned with each other, that is, when the magnet 23 approaches, an ON signal which is a detection output is output, and in other cases, an OFF signal is output. Further, the position sensor 25 is configured such that when the drum lid 20 is located at a predetermined position with respect to the mounting member 24, in this case, when the inlet / outlet 4a and the opening 16a are aligned with each other with the drum lid 20 closed, that is, the magnet 26 is provided. When approaching and when the magnet 23 approaches, an ON signal which is a detection output is output, and an OFF signal is output otherwise. Here, the magnets 23 and 26 are located on the same circle line in the body portion of the drum 16. The position sensors 22 and 25 and the magnets 23 and 26 constitute a first position detecting means 27 and a second position detecting means 28. The first position detecting means 27 detects when the magnet 26 approaches the position sensor 22 when the drum 16 rotates in one direction, for example, the direction of arrow A, that is, when the drum 16 reaches the braking reference position. It is designed to detect. Here, the braking reference position is set so that when the drum 16 is electromagnetically braked there, the drum 16 is temporarily stopped before the position where the doorway 4a and the opening 16a meet. In addition, the second position detecting means 28
Means that when the magnet 26 is close to the position sensor 25 and the magnet 23 is close to the position sensor 22,
The point where 4a and the opening 16a are aligned is detected.

In the right part of FIG. 4 inside the machine, 29 is a partition plate, for example, an annular casing cover, which is composed of a short cylindrical tube wall portion 30 and a partition plate portion 31 which face the outer peripheral end of the fan 14. Is mounted on the casing 13 at a position around the fan 14 via a sealing means 32. This allows
An exhaust introduction chamber 33 is formed in the left side portion of the fan 14 and the casing cover 29 in FIG. 4, and an outside air introduction chamber 34 is formed in the right side portion of the fan 14 and the casing cover 29 in FIG.
Then, when the fan 14 rotates, the hot air that is the exhaust gas inside the drum 16 is sucked into the exhaust gas introduction chamber 33 through the filter set 35 and an intake port (not shown), and then passes through the connection duct 36 and the heater duct 37, and the drum support member. It is heated by the heater 38 arranged at the lower part of 15 and returned to the inside of the drum 16 again. At the same time, the air outside the outer box 1 is sucked into the outside air introduction chamber 34 from the outside air intake port 3a of the cover 3 through the intake cover 39 (see FIG. 3), and as described above, the exhaust introduction chamber 3a.
After exchanging heat with the exhaust air from the drum 16 flowing through 33 and the fan 14, it is discharged from the outside air discharge port 8a of the base plate 8. still,
A belt 42 for driving a drum is stretched between a pulley 40, a tension pulley 41, and a drum 16 which are attached to a rotation shaft of the motor 9, and the motor 9 drives the drum.
16 is rotationally driven in the direction of arrow A shown in FIG. Further, a fan driving belt 45 is stretched between a pulley 43 attached to the rotating shaft of the motor 9 and a pulley 44 of the fan 14, and the fan 9 is rotated by the motor 9. ing. 46 is drum 16
With the electrode arranged below the drum supporting member 15 facing inside,
This outputs an electric signal according to the cloth resistance.

Here, the sealing means 32 having a sealing structure between the exhaust gas introduction chamber 33 and the outside air introduction chamber 34 will be described with reference to FIG. In FIG. 1, an inner cylindrical wall portion 30a of the casing cover 29 is integrally provided with an inner cylindrical wall portion 30a having a substantially inverted L-shaped cross section over the entire inner peripheral surface thereof. An engaging groove 30b is formed at the base end of the portion 30a, and an engaging claw (not shown) is intermittently provided at the right end of the cylindrical wall portion 30 in FIG. Reference numeral 47 is an annular sliding contact member, which is made of a material having a small friction coefficient, such as stainless steel, and is formed in a substantially "F" cross section. The sliding contact member 47 is fitted between the locking groove 30b and the locking claw and is mounted on the inner peripheral surface of the cylindrical wall portion 30. On the other hand, 48 is an annular seal member formed of, for example, felt, which is fitted into an attachment groove portion 14a formed on the outer peripheral end of the fan 14 and fixed by adhesion, and the fan 14 while slidingly contacting the sliding contact member 47. And the exhaust air introduction chamber 33 and the outside air introduction chamber 34 are sealed together. Reference numeral 49 denotes a groove-shaped recess formed on the inner peripheral surface of the cylindrical wall portion 30 which is the inner peripheral surface portion of the casing cover 29. As shown in FIG. At the bottom, the cylinder wall 30 and the sliding contact member 47
It is formed so as to extend outward from the overlapping portion with and to the outside air introduction chamber 34 side and be opened.

Here, in the partition plate portion 31 of the casing cover 29, a hole 31a is formed below the recess 49. Reference numeral 50 denotes a ventilation block capable of passing water, for example, a water guide member made of felt, which has a hole on the surface of the partition plate part 31 on the outside air introduction chamber 34 side.
A receiving portion 31 protruding from the lower portion of 31a so as to cover the hole 31a.
It is inserted and fixed in b, and is arranged so as to connect between the recess 49 and the hole 31a and close the hole 31a. As shown in FIG. 3, the water guide member 50 has a predetermined width dimension in the left-right direction in the figure and is arranged along the lower left and right sides of the recess 49. Further, as shown in FIG. 4, a drainage port 36a is formed in the lower part of the connecting duct 36, and further, a drainage port 8b is formed in the base plate 8 corresponding to the drainage port 36a.

Next, the operation of the above configuration will be described.

When the drying operation is started, the heater 38 and the motor 9 are energized, and the drum 16 and the fan 14 rotate. This fan 14
Exhaust gas from the inside of the drum 16 is sucked into the exhaust gas introducing chamber 33 and returned to the inside of the drum 16 by the centrifugal air blowing action by the rotation of the heater 38, and is heated by the heater 38. At the same time, the outside air is sucked into the outside air introduction chamber 34 through the outside air suction port 3a and is discharged outside through the outside air discharge port 8a. The air that has been heated by the heater 38 and supplied into the drum 16 removes water from the material to be dried here, and is then sucked into the exhaust gas introduction chamber 33 where it exchanges heat with the outside air via the fan 14. It is then cooled and dehumidified, and thereafter, it is heated again to be heated and supplied into the drum 16, thus repeating the circulation.

In such a drying operation, the exhaust air from the drum 16 is cooled by the outside air in the fan 14 and its moisture is condensed, and water droplets adhere to the surface of the fan 14 on the exhaust introduction chamber 33 side.
This water droplet is shaken off by the centrifugal force accompanying the rotation of the fan 14, passes through the inside of the exhaust gas introducing chamber 33, and enters the connecting duct 36.
Finally, the water is discharged from the drainage port 36a to the outside. In this case, a part of the water penetrates into the slight gap generated between the cylindrical wall portion 30 and the sliding contact member 47 in the sealing means 32, and travels through the cylindrical wall portion 30 or the sliding contact member 47 to reach the cylindrical wall portion. Flow towards the bottom of 30. Since the concave portion 49 extending outward is formed at the lowermost portion of the cylindrical wall portion 30, the water is promptly removed from the concave portion 49.
Is discharged to the outside air introduction chamber 34 side. Then, this water is sucked into the water guide member 50 from the recess 49, flows further downward in the water guide member 50, and returns to the inside of the exhaust gas introduction chamber 33 through the hole 31a formed below the recess 49. After this, the water is exhausted
It goes through the inside of 33 to the connecting duct 36, and finally the drainage port 36
It is discharged from the outside. In this case, since the water guide member 50 that closes the hole 31a is a ventilation block that allows water to pass, the exhaust gas in the exhaust gas introduction chamber 33 is prevented from entering the outside air introduction chamber 34 through the hole 31a.

According to the present embodiment having such a configuration, the water leaked from the sealing means 32 is guided by the recess 49 of the inner peripheral surface of the cylindrical wall portion 30 and drained, and the water is introduced to the outside air introduction chamber 34 side of the partition plate portion 31. Element
Since it flows down through 50 and returns to the exhaust gas introduction chamber 33 through the hole 31a located below the recess 49, it is possible to prevent the inside bottom portion or the floor surface from getting wet due to the leaked water. Then, it is not necessary to receive the water flowing down the outside air introducing chamber 34 side of the partition plate portion 31, and the water in the exhaust introducing chamber 33 can be discharged to the outside of the machine through its drain port 36a. The container can be eliminated and the cost can be reduced accordingly. Moreover, in this case, since the hole 31a is closed by the water guiding member 50 which is a ventilation block capable of passing water, the exhaust gas in the exhaust gas introducing chamber 33 can enter the outside air introducing chamber 34 through the hole 31a. Can be stopped.

FIG. 5 shows a second embodiment of the present invention.
Differences from the embodiment will be described. In FIG. 5, reference numeral 51 is a ventilation blocking cover which replaces the water guide member 50 which is a ventilation blocking portion, and this is a hole 31a on the exhaust introduction chamber 33 side of the partition plate portion 31.
Is provided so as to cover the lower part, and the lower part thereof opens downward. In this case, the exhaust gas in the exhaust gas introduction chamber 33 flows along the ventilation block cover 51, so
Flow to the outside air introducing chamber 34 through 31a is prevented.

Therefore, also in the second embodiment, it is possible to obtain substantially the same operational effects as in the first embodiment.

[Advantages of the Invention] As is apparent from the above description, the present invention forms a hole in the partition plate below an outwardly extending recess formed in the lowermost portion of the inner peripheral surface of the partition plate and closes the hole. As described above, since the ventilation block capable of passing water is provided, it is possible to prevent the inside bottom portion or the floor surface of the aircraft from being wet by the water leaking from the sealing means, and it is possible to realize the excellent effect that the cost can be reduced. Play.

[Brief description of drawings]

1 to 4 show a first embodiment of the present invention, in which FIG. 1 is a longitudinal sectional view of an essential part, and FIG. 2 is an overall perspective view.
FIG. 3 is a perspective view showing a state in which the outer box is removed, and FIG. 4 is an overall vertical rear view. FIG. 5 is a view corresponding to FIG. 1 showing a second embodiment of the present invention. In the drawing, 1 is an outer box (main body), 14 is a fan, 16 is a drum (drying chamber), 29 is a casing cover (partition plate), 31a is a hole, 32 is a sealing means, 33 is an exhaust introduction chamber, and 34 is outside air. An introduction chamber, 49 is a concave portion, 50 is a water guide member (a ventilation block capable of passing water), and 51 is a ventilation block (a ventilation block capable of passing water).

Claims (1)

[Scope of utility model registration request] 1. An exhaust gas introducing chamber and an outside air introducing chamber are formed in the machine by a fan having a double-blade shape and a partition plate located around the fan via a sealing means, and the air is blown from the drying chamber by a blowing action of the fan. The exhaust gas is introduced into the exhaust gas introduction chamber to introduce the outside air into the outside air introduction chamber so that heat is exchanged through the fan, and the recess is formed at the lowermost portion of the inner peripheral surface of the partition plate and extends outward. The water leaking from the sealing means is drained, and a hole is formed in the partition plate below the recess, and a ventilation block capable of passing water is provided so as to close the hole. A dryer characterized by being provided.