JPH05211981A - Dish drier - Google Patents

Abstract

PURPOSE:To spread uniformly hot air in a drying room by a system wherein the hot air generated in a hot air generating apparatus is ejected from an opening being faced to this side on the inner side of the bottom of the drying room and it is sucked from a recovery path being opened on the upper part of the inner side of the drying room, and is cooled and dehumidified by means of a heat exchanger and it is heated and circulated again. CONSTITUTION:Hot air heated by means of a heater provided in a machine room 2 below a drying room 1 is fed into an ejecting opening 20 on the inner side on the bottom of the drying room 1 by means of blades 15 for circulation. The hot air is ejected from the ejecting opening 20 toward this side and is elevated between a plurality of tablewares S being arranged on tableware shelves 3 and 4 to dry the tablewares S. The hot air contg. moisture elevated to the ceiling of the drying room l is sucked from a suction hole opened on the upper part of the inner side into a recovery path constituted with the inner side wall and a cover 23 for the hot air path. The ejecting opening and the suction hole are positioned by being shifted left and right. The sucked hot air is cooled by means of a heat exchanger 10 and dehumidified by condensing moisture having been taken from the tablewares S and it is heated again and circulated again. The hot air is uniformly circulated thereby and the tablewares are efficiently dried.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tableware dryer, and more particularly, to supplying hot air generated by a hot air generator to a drying chamber and sending exhaust air from the drying chamber to a heat exchanger to cool and dehumidify the temperature. The present invention relates to a device having a circulation air passage that returns to the wind generator.

[0002]

2. Description of the Related Art Conventionally, this kind of tableware dryer is found in, for example, Japanese Examined Patent Publication (Kokoku) No. 57-26773 (A47L19 / 00), and such a dryer dries on the bottom of the drying chamber by a hot air generator. Since a supply hole for wind and a collection hole for collecting the cooled air in the warm air generator are provided, the warm air supplied to the drying chamber is collected from the collection hole without sufficiently reaching the drying chamber, There is a problem that the warm air cannot sufficiently contribute to the drying, resulting in poor drying efficiency.

[0003]

DISCLOSURE OF THE INVENTION The present invention has been made in view of the above point, and the hot air supplied to the drying chamber is sufficiently distributed in the drying chamber so that the tableware dryer can sufficiently contribute to the drying. The task is to provide.

[0004]

According to the present invention, hot air generated by a hot air generator is supplied to a drying chamber from a hot air outlet, and exhaust gas from the drying chamber is sent to a heat exchanger through a recovery passage. A tableware dryer having a circulation air path that returns to the hot air generator after feeding, cooling and dehumidifying, and the hot air discharge port is opened toward the rear at the bottom of the drying chamber, and the drying chamber of the recovery passageway is opened. The opening to is located at the upper back side of the drying chamber.

Furthermore, the hot air discharge port and the opening of the recovery passageway into the drying chamber are displaced from each other in the left-right direction when viewed from the front.

[0006]

[Function] The hot air outlet is opened toward the rear at the bottom of the drying chamber toward the front, while the opening of the recovery passage to the drying chamber is located at the upper rear side of the drying chamber. The warm air blown from the back side to the front side rises to the back side once after coming to the front side, so it is exhausted from the recovery passageway after passing through the drying chamber evenly.

If the positions of the hot air discharge port and the opening of the recovery passage in the drying chamber are shifted in the left-right direction when viewed from the front, it is possible to lengthen the time from the supply of hot air to the discharge thereof. Warm air spreads evenly throughout the drying room.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT FIG. 1 is a front vertical sectional view of a tableware dryer. The dryer is divided into a drying room 1 for storing the tableware to be dried and a machine room 2 containing a hot air generator and the like. In the drying chamber 1, there are arranged cupboards 3 and 4 on which dishes S such as plates are placed, as indicated by a chain line. The upper cupboard 4 is suspended from the ceiling surface of the drying room. The front of the drying chamber 1 is opened and opened and closed by a door 5. M is a boon.

The machine room 2 is composed of an upper case 6 and a lower case 7. An air passage 8 is formed in the machine room 2. The air passage 8 is divided into an upper air passage 11 and a lower air passage 12 by a partition plate 9 and a heat exchanger 10 described later in detail. 13 is a blower and a motor
14 has a large circulation blade 15 and a small cooling blade 16 rotated by 14, the circulation blade 15 is located in the upper air passage 11,
The cooling vanes 16 are located in the lower air passage 12. Circulation blade 11
And the cooling blade 12 are integrally formed. The motor 14 is
It is fixed to a cooling fan casing 17 mounted below the partition plate 9. The partition plate 9 is fixed to the upper air passage side wall 18 depending from the upper case 6.

A heater 19 is arranged on the discharge side of the circulation vane 15 in the upper air passage 11, and the circulation vane 15 and the heater 19 constitute a warm air generator. The air heated by passing through the heater 19 is supplied into the drying chamber 1 through the hot air outlet 20. The warm air discharge port 20 is open toward the front side on the back side of the bottom of the drying chamber (see FIG. 2). The warm air supplied to the drying chamber 1 evaporates water from the tableware S while rising, and then the drying chamber 1
The upper end of the upper air passage 11 returns to the suction side of the circulation blades 15 through the recovery passage 21 whose upper end is open at the upper part on the back side. The recovery passage 21 is
The inner wall 22 of the drying chamber 1 and an air passage cover 23 having a U-shaped cross section, the lower end of which is the upper air passage as is apparent from FIG.
It is connected to the back side of 11.

On the suction side of the circulation vanes 15 of the upper air passage 11,
The heat exchanger 10 is arranged so as to partition the upper air passage 11 and the lower air passage 12. As is clear from the drawing, the heat exchanger 10 has a single plate-like shape and a corrugated transverse cross section, and a number of corrugated streaks are formed from the back side to the front side as is apparent from FIG. After extending, it bends toward the circulation blade 15. The back side of the wave streak faces the lower end of the recovery passage 21, and the wind discharged from the lower end of the recovery passage 21 is guided to the flow circulation blade 15 along the wave streak. The upper air passage 11, the warm air outlet 20, the drying chamber 1, and the recovery passage 21 described above constitute a circulation air passage.

The heat exchanger 10 is detachably inserted into and removed from the air passage 8 from the back side of the machine room 2. The partition plate 9 has a lower air passage.
The trough-shaped recess 24 that constitutes 12 is integrally formed, and this recess
The side edges of the heat exchanger 10 are guided by a plurality of guide pieces 25 provided at the upper end of 24 and inserted into the air passage 8 through the opening 26 on the back side of the machine room. By this insertion, the air passage 8 and the upper air passage 11 are formed. Lower wind path 12
Is divided into The heat exchanger 10 is made of a metal material having excellent thermal conductivity, but may be a resin material. 27 is a handle provided on the heat exchanger 10.

The recess 24 is communicated with the inside of the cooling fan casing 17 through a communication port 28 formed in the side wall thereof. By the rotation of the cooling vanes 16, the outside air is taken into the fan casing 17 through the outside air intake hole 29 opened in the lower case 7, and this outside air is discharged into the recess 24 through the communication port 28 and is on the recess 24. The heat exchanger 10 is cooled and exhausted to the outside of the machine through the discharge hole 30 provided in the lower surface of the recess 24 and the discharge hole 31 provided in the lower case 7.

Moisture taken from the tableware is condensed on the upper surface of the heat exchanger 10 due to the above cooling, but a water collecting channel 32 for collecting this water is formed, and the water is drained from a drain port 33 provided in the water collecting channel 32. This drainage is guided by a gutter 34 to a water receiving container 35 detachably provided in the lower case 7 and stored therein. The upper case 6 is also formed with a water collecting passage 36 for collecting water drops falling from the tableware, and water is guided to a water receiving container 35 from a drain port (not shown) provided in the water collecting passage 36.

Next, the operation will be described.

When the motor 14 is rotated, the both blades 15 and 16 are rotated, and the rotation of the circulation blade 15 causes the heater 19 to generate warm air, and the warm air discharge port 20 causes the hot air to be discharged as shown by arrows in FIGS. Hot air is discharged into the drying chamber 1 to evaporate water from the dishes while rising, and then passes through the recovery passage 21 and the upper surface of the heat exchanger 10. Here, the outside of the heat exchanger 10 passes through the outside air as described above, so the heat exchanger is cooled, and the damp exhaust gas that has passed through this is dried and cooled to condense moisture to dry it. The cycle of making air, sending it to the circulation vanes 15 and warming it with the heater 19 again is repeated. The condensed water passes through the drainage port 33 and the gutter 34 and is collected in the water receiving container 35.

Here, the hot air outlet 20 is opened at the bottom of the drying chamber 1 toward the rear side toward the front, while the upper end of the recovery passage 21 is opened at the upper side of the drying chamber 1 at the rear side. The warm air blown toward the front from the bottom of the bottom comes to the front as shown by the arrows in Fig. 1 to 3, then rises to the back, so it passes through the drying chamber evenly and then the recovery passageway. It will be exhaled from 21, and it will fully contact the tableware and contribute to drying.

Particularly in this embodiment, as is clear from FIG.
The positions of the hot air discharge port 20 and the opening at the upper end of the recovery passage 21 are offset in the left-right direction when viewed from the front, so
It is possible to lengthen the time from the supply from 20 to the discharge from the recovery passage 21, and the warm air is evenly distributed throughout the drying chamber.

Further, if the heat exchanger 10 is used for a long period of time, water stains adhere to it, and if it is used without cleaning, the heat exchange efficiency may be reduced or a bad odor may be generated. Can be taken out from the back side of the machine room 2 by holding the handle 27, so it can be removed and cleaned,
It is possible to prevent a decrease in heat exchange efficiency and generation of a bad odor. Since the heat exchanger 10 can be taken out from the back side of the machine room 2, there is little risk that a child, for example, accidentally removes the heat exchanger by mischief.

[0020]

According to the present invention, the hot air discharge port and the recovery passage opening position to the drying chamber are devised, so that the warm air discharged into the drying chamber is sufficiently distributed in the drying chamber for drying. It is possible to contribute and improve the drying efficiency.

[Brief description of drawings]

FIG. 1 is a front vertical sectional view of a tableware dryer of the present invention.

FIG. 2 is a cross-sectional view taken along the line AA in FIG.

FIG. 3 is a sectional view taken along line BB in FIG.

FIG. 4 is a front view of the heat exchanger of the present invention.

[Explanation of symbols]

 15 Circulation blade (warm air generator) 19 Heater (warm air generator) 1 Drying chamber 10 Heat exchanger 16 Cooling blade 11 Upper air passage (circulation air passage) 20 Warm air discharge port (circulation air passage) 21 Recovery Passage (circulating air passage)

Claims (2)

[Claims] 1. Hot air generated by a hot air generator is supplied from a hot air outlet to a drying chamber, and exhaust gas from the drying chamber is sent to a heat exchanger through a recovery passage to cool and dehumidify the hot air. In the one having a circulation air passage returned to the generator, the warm air outlet is opened toward the front on the back side of the bottom of the drying chamber,
A tableware dryer in which the opening of the recovery passageway into the drying chamber is located at the upper rear side of the drying chamber. 2. The tableware dryer according to claim 1, wherein the hot air discharge port and the opening of the recovery passageway into the drying chamber are offset from each other in the left-right direction when viewed from the front.