KR200351015Y1 - Circulation Structure of Hot Wind at Dish Dryer - Google Patents

Abstract

The present invention relates to a hot air recirculation structure of the dish dryer, and a supply duct 21 penetrates under the bottom surface 12 of the drying chamber 11 having an exhaust port, and intake air holes 13 are provided in the supply duct 21. In the dish dryer (2) is provided with a blowing fan (23) for sucking outside air, and having hot air supply means (20) consisting of a heater (24) for heating the sucked outside air and discharging it into the drying chamber (11). In addition, a recirculation tube 310 communicating with the blower fan 23 is installed on the bottom surface 12 of the drying chamber 11, and the top of the recirculation tube 310 is covered with the recirculation tube 310. One side is coupled to the recirculation cover 100 having a grill 112 for introducing the hot air in the drying chamber 11, the bottom surface 12 of the drying chamber 11 to which the recirculation cover 100 is coupled to the recirculation cover 100 Is formed into a protrusion 300 which is inserted into the protrusion and protrudes upward to contact the grill 112, so that the temperature of the hot air can be quickly Increased thermal efficiency is improved, and the drying and sterilization operation is quickly performed to improve the drying performance and to reduce the power consumption.

Description

Circulation Structure of Hot Wind at Dish Dryer

The present invention relates to a hot air recycling structure of the dish dryer, and more particularly, by recycling most of the hot air drying the tableware, the drying performance can be improved even when the heater capacity is small, and the power consumption is reduced. It relates to a hot air recycle structure.

In general, the dish dryer is a household appliance that performs drying and sterilization by forcibly drying the dishes after washing.

In recent years, as the level of hygiene management of the people gradually increases, the number of households with dish dryers is gradually increasing, and accordingly, the demand is gradually increasing. Accordingly, the development of a dish dryer having a more competitive function and price competitiveness is accelerating, and as a result, various kinds of dish dryers having higher functions are commercially available.

One of these dish dryers has a drying and sterilizing function at the same time, a high temperature hot air type dish dryer using high temperature hot air for drying. This high temperature hot air dish dryer automatically dries the dishes using high temperature hot air, which is more hygienic than the removal of moisture of each dish as a dishwashing dish, which is highly contaminated.

Such a conventional high temperature hot air dish dryer has already been developed and used in various forms, one example of which is shown in FIGS. 1 and 2.

As shown in the drawing, a typical high temperature hot air dish dryer 2 has a main body 10 forming an external appearance and a drying chamber 11 for storing dishes to be dried on the upper side of the main body 10.

At this time, the drying chamber 11 is provided with a drying rack (not shown) such as a shelf on which the dishes to be dried are placed, and a drip tray (not shown) is provided under the drying rack.

The drying chamber 11 is sealed by a door 15 that can be opened and closed, and a hot air supply means 20 for supplying hot air to the drying chamber 11 is installed below the drying chamber 11.

In addition, an intake hole 13 for supplying outside air to the hot air supply means 20 is drilled in the lower side of the drying chamber 11, and the upper one side of the drying chamber 11 flows into the drying chamber 11 to dry the wet dishes. An exhaust port (not shown) for discharging hot air is provided.

On the other hand, the hot air supply means 20 is provided with a supply duct 21 for sucking the outside air from the intake hole 13 and supplying it to the drying chamber 11 through the bottom surface 12 of the drying chamber 11. .

In addition, inside the supply duct 21, a blower fan 23 that is supplied with power and driven by a driving motor 22 to suck outside air and a heater 24 for heating the sucked outside air are installed.

Looking at the operating state of the conventional high temperature hot air dish dryer made as follows.

First, by operating a switch (not shown) provided in the main body 10 of the dish dryer 2 to set an operation time and the like, and then supplying power to the dish dryer 2, a blower fan may be driven by the driving motor 22. As the 23 is driven, the outside air is sucked into the supply duct 21 through the intake hole 13, and at the same time, the heater 24 is heated to heat the outside air sucked to a high temperature.

The heated outside air is discharged to the inside of the drying chamber 11 through the supply duct 21 to dry the dishes which are to be dried.

The hot air drying the dishes in the drying chamber 11 is discharged to the outside through the exhaust port of the main body 10.

However, in the conventional dish dryer 2 made as described above, the hot air blown into the drying chamber 11 is blown to the drying chamber 11 even though a predetermined time is required to increase the temperature of the hot air supplied in accordance with the capacity of the drying chamber 11 to an appropriate temperature. After drying the dishes, all the outside air must be newly heated by being discharged through the exhaust port, so that the temperature inside the drying chamber 11 reaches a set temperature is relatively long, and the drying and sterilizing effect is lowered. There was a wasteful issue.

Therefore, it was not possible to meet the consumer's desire for rapid drying and sterilization, there was a problem that the reliability of the consumer rather deteriorated due to unnecessary power waste.

Accordingly, the present invention was devised to solve the problems of the prior art as described above, by removing some of the hot air blown into the drying chamber of the dish dryer to dry the dishes, and recycles most of the remaining hot air to the heater The purpose of the present invention is to provide a hot air recirculation structure of a dish dryer that can improve drying performance even if the capacity of the battery is small and power consumption is reduced.

1 is an external perspective view showing a general dish dryer.

2 is a view showing a conventional drying means configured in a general dish dryer.

3 is a view illustrating a dish dryer to which a recirculation cover and a discharge cover according to the present invention are applied.

Figure 4 is a perspective view of the recirculation cover and the discharge cover according to the present invention, Figure 4a is a bottom perspective view of the recirculation cover, Figure 4b is a top perspective view of the discharge cover.

5 is a cross-sectional view of the recycling cover and the discharge cover according to the present invention.

<Description of the symbols for the main parts of the drawings>

2: dish dryer 10: main body

11: drying chamber 12: bottom surface

13: intake 14: door

20: hot air supply means 21: supply duct

22: drive motor 23: blowing fan

24: heater

100: recirculation cover 110: cover plate

111: flange 112: grill

120: coupling protrusion 121: incision

122: locking jaw 123: support rib

130: support protrusion 200: discharge cover

210: mounting portion 211: flange portion

220: discharge portion 221: grill

300: protrusion 302: fastening hole

310: recycle tube

In the hot air recirculation structure of the dish dryer of the present invention for achieving the above object, a supply duct is installed through a bottom of a bottom of a drying chamber having an exhaust port, and a blowing fan for sucking outside air from the intake hole is installed in the supply duct. In the dish dryer having a hot air supply means consisting of a heater for heating the sucked outside air and discharged into the drying chamber, a recirculation tube communicating with the blower fan is installed on the bottom surface of the drying chamber, and the recirculation tube is disposed above the recirculation tube. In addition to covering the tube, a recycling cover having a grill into which hot air flows into the drying chamber is coupled to one side thereof, and a bottom surface of the drying chamber to which the recycling cover is coupled is inserted into the recycling cover and protrudes upward to contact the grill. Characterized in that formed.

In addition, the recirculation cover is formed with a plurality of coupling protrusions detachably coupled to the fastening hole of the protrusion, the coupling protrusion is formed with a cutout for dividing the coupling protrusion in the axial direction, the outer peripheral surface on one side of the fastening hole A locking jaw is formed to be elastically inserted and locked, and the other side of the support rib is formed to protrude in contact with the protrusion.

In addition, the discharge duct is coupled to the supply duct protruding to the bottom surface of the drying chamber, the discharge cover is characterized in that the grill is discharged higher than the bottom surface of the drying chamber.

Hereinafter, with reference to the accompanying drawings, preferred embodiments of the present invention in detail as follows.

Prior to describing the present invention, the same reference numerals are given to the same parts as in the prior art, and redundant descriptions are omitted.

1 to 5 are views illustrating a hot air recirculation structure of the dish dryer according to the present invention.

As shown in the dish dryer 2 according to the present invention, a supply duct 21 penetrates under the bottom surface 12 of a drying chamber 11 having an exhaust port (not shown), and the supply duct 21 is provided. In the inside, a blower fan 23 for sucking outside air from the intake hole 13 is installed by the driving motor 22, and a hot air supply including a heater 24 that heats the sucked outside air and discharges it into the drying chamber 11. Means 20.

On the bottom surface 12 of the drying chamber 11 provided with the hot air supply means 20 as described above, a hollow recirculation tube 310 communicating with the blowing fan 23 is provided, and the upper portion of the recirculation tube 310 is provided. The recirculation cover 100 covering the recirculation tube 310 is detachably coupled to the bottom surface 12 of the drying chamber 11.

The recirculation cover 100 is a flange portion which is integrally extended downwardly to the outer periphery of the cover plate 110 and the cover plate 110 in contact with the bottom surface 12 of the drying chamber 11, the finely curved plate 111 and a plurality of grilles 112 integrally formed on the cover plate 110 are formed on one side of the flange portion 111 to have a length shorter than that of the flange portion 111.

On the other hand, the bottom surface 12 of the drying chamber 11 in which the recirculation cover 100 is installed, is formed with a protrusion 300 protruding upward in a shape corresponding to the recirculation cover 100 of the recirculation cover 100 It is inserted into the flange portion 111 and abuts on the lower surface of the grill 112, a plurality of fastening holes 302 are perforated in the protrusion (300).

Accordingly, the grill 112 of the recirculation cover 100 into which the hot air flows into the drying chamber 11 is formed at a position higher than the bottom surface 12 of the drying chamber 11 by the height of the protrusion 300 to dry the dishes. Water flows from the tableware to the drip tray (not shown) below the drying rack (not shown) and overflows into the recirculation pipe 310 even when falling to the bottom surface 12 of the drying chamber 11.

In addition, a plurality of coupling protrusions detachably coupled to the fastening hole 302 of the bottom surface 12 of the drying chamber 11 on the bottom surface of the recirculation cover 100 facing the bottom surface 12 of the drying chamber 11 ( 120) is formed.

At the end of the coupling protrusion 120, a cutout 121 for dividing the coupling protrusion 120 in both sides is formed in the axial direction, and the locking jaw is elastically inserted into the fastening hole 302 and caught on the outer circumferential surface thereof. 122 is formed.

In addition, a support rib 123 contacting the bottom surface 12 of the drying chamber 11 protrudes from the outer circumferential surface of the coupling protrusion 120 to prevent excessive insertion of the coupling protrusion 120 into the fastening hole 302. And also supports the recirculation cover (100).

In addition, the support ribs 123 and a plurality of support protrusions 130 contacting the bottom surface 12 of the drying chamber 11 are formed at the center of the bottom surface of the recirculation cover 100 to protrude into the fastening hole 302. In addition to preventing excessive insertion of the coupling protrusion 120, the recirculation cover 100 is more firmly supported.

On the other hand, the discharge cover 200 is coupled to the supply duct 21 protruding to the bottom surface 12 of the drying chamber (11).

The discharge cover 200 has a mounting portion 210 formed on the outer circumference of the flange portion 211 detachably coupled to the supply duct 21, and protrudes on the mounting portion 210 and a plurality of sides. The discharge part 220 is formed with the grill 221.

Therefore, the grill 221 of the discharge cover 200 is also formed at a position higher than the bottom surface 12 of the drying chamber 11, to prevent the inflow of water.

Hereinafter, the hot air recycle structure of the dish dryer according to the present invention configured as described above.

First, the washed dishes are arranged on a drying rack (not shown) in the drying chamber 11, and then, operating a switch (not shown) provided in the main body 10 of the dish dryer 2 to set an operating time and the like. When power is supplied to (2), the blower fan 23 is driven by the drive motor 22 to suck outside air into the supply duct 21 through the intake hole 13, and at the same time the heater 24 ) Is heated to heat the outside air sucked while heating.

Then, the heated outside air is discharged to the inside of the drying chamber 11 through the supply duct 21 by the blowing fan 23 through the discharge cover 200 to dry the dishes.

As described above, some of the hot hot air drying the wet dishes in the drying chamber 11 is discharged to the outside through the exhaust port of the main body 10, and most of the remaining hot air is recirculated by the suction input of the blower fan 23. 310 is reintroduced into feed duct 21.

On the other hand, the hot air re-introduced into the recirculation pipe 310 is made through the grill 112 of the recirculation cover 100, wherein the water flowing from the drip tray flowing through the bottom surface 12 of the drying chamber 11 is the grill 112 It is formed at a high position from the bottom surface 12 by the height of the protruding portion 300, thereby preventing the inflow into the recirculation pipe 310.

The inflow of water as described above is prevented in the discharge cover 200 because the grill 221 on the discharge part 220 is formed at a position higher from the bottom surface 12 of the drying chamber 11 by the height of the mounting part 210. In particular, the grill 221 of the discharge cover 200 is a discharge port through which hot air is discharged, and the effect of preventing the inflow of water is greater than that of the recirculation cover 100.

On the other hand, the hot air re-introduced through the recirculation cover 100 and the recirculation tube 310 is mixed with the outside air introduced into the intake hole 13 and reheated through the heater 24 by the compensation temperature according to the temperature difference with the outside air. In addition, it is redistributed into the drying chamber 11 again through the discharge cover 200 to dry the dishes.

Therefore, the temperature of the hot air is quickly reached to the set temperature to improve the thermal efficiency, and the rapid drying and sterilization operation is performed to improve the drying performance and to reduce the power consumption.

As described above, according to the hot air recirculation structure of the dish dryer of the present invention, the temperature of the hot air blown into the drying chamber of the dish dryer to dry the dishes is rapidly increased even if the heater capacity is small, thereby improving the thermal efficiency, Sterilization works to improve drying performance and reduce power consumption.

In addition, it is possible to prevent malfunction of the hot air supply means due to the inflow of water by recirculating the hot air while preventing the inflow of water away from the drip tray into the recirculation pipe during the hot air recirculation process.

Claims (3)

A supply duct 21 penetrates under the bottom 12 of the drying chamber 11 having an exhaust port, and a blower fan 23 that sucks outside air from the intake hole 13 is installed in the supply duct 21. In the dish dryer 2 having a hot air supply means 20 consisting of a heater 24 for heating the sucked outside air and discharged into the drying chamber 11, A recirculation tube 310 communicating with the blower fan 23 is installed on the bottom surface 12 of the drying chamber 11, and an upper portion of the recirculation tube 310 covers the recirculation tube 310 and one side thereof. Recirculation cover 100 having a grill 112 for introducing hot air in the drying chamber 11 is coupled to the bottom surface 12 of the drying chamber 11 to which the recirculation cover 100 is coupled to the recirculation cover 100. Hot air recirculation structure of the dish dryer, characterized in that formed into a protrusion 300 protruded upwards to be in contact with the grill 112. The method of claim 1, wherein the recirculation cover 100, A plurality of coupling protrusions 120 detachably coupled to the fastening hole 302 of the protrusion 300 are formed, and the coupling protrusion 120 divides the coupling protrusion 120 in the axial direction. ) Is formed, and one side of the outer circumferential surface is formed with a latching jaw 122 is elastically inserted into the fastening hole 302, the other side of the support rib 123 is formed in contact with the protrusion 300 is projected Hot air recirculation structure of the dish dryer. The method according to claim 1 or 2, A discharge cover 200 is coupled to a supply duct 21 protruding from the bottom surface 12 of the drying chamber 11, and a grill 221 for discharging hot air is provided at the discharge cover 200. Hot air recycle structure of the dish dryer, characterized in that formed higher than the bottom surface (12).