JP2009019828A - Cooker - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To make water smoothly flow on a water supply pipe side when the residual amount of water inside a water storage tank becomes small to reduce failure caused by flowing of dust etc. settled on the bottom face of the water storage tank to the inside of a water supply means. <P>SOLUTION: A main body 1 of this heating cooker comprises a heating chamber 2 for storing a heating object 4; heating means 5, 6 for heating the heating object 4; a steam generating means 13 for supplying steam to the heating chamber 2; the water storage tank 14 for storing water to be sent to the steam generating means 13; and a pump 15 for sending the water in the water storage tank 14 to the steam generating means 13. The water storage tank 14 has a tank vessel 14a having an opened upper face, a cover 14b capable of closing the upper face of the tank vessel 14a and the water supply pipe 19 integrated with the cover 14b, and an inner bottom face of the tank vessel 14a is formed as an inclined bottom face inclined to become gradually deeper toward the water supply pipe side. A rib-shaped projecting part 18 is provided on the inclined bottom face, and a water inlet 19a of the water supply pipe 19 is set in the position in the vicinity of the bottom face of the tank vessel 14a. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a cooking device such as a microwave oven for cooking by supplying water vapor to an object to be cooked in a heating chamber.

In addition to high-frequency heating and oven heating, a conventional cooking device includes a steam supply mechanism that supplies superheated steam to the heating chamber, and supplies superheated steam to the heating chamber to enable cooking using high-temperature steam.
The steam supply mechanism supplies water from a water storage tank detachably attached to the heating cooker body to the steam generation means by a water supply means via a water supply path arranged in the heating cooker body. Water is heated and the generated steam is evaporated and diffused into the heating chamber.

The water supply tank of the steam supply mechanism includes a tank container that is detachably provided at the lower part of the front surface of the main body, a lid that can open the entire upper surface of the tank container, and a water supply pipe that is integrated with the lid. Yes.
The end surface of the water supply port on the tank bottom surface side of the water supply pipe has a notch, and the water supply pipe has an outlet connected to the end of the water supply pipe on the main body side.
Further, a cover is provided on the front surface of the tank container of the water storage tank, and the entire inner bottom surface of the tank container has a flat shape with no irregularities (see, for example, Patent Document 1).
Japanese Patent Laying-Open No. 2007-10162 (first page, FIG. 4)

In the conventional cooking device, since the bottom surface of the water storage tank has a flat shape with no irregularities, it is difficult for water to flow to the water supply pipe side when the remaining amount of water decreases.
In addition, there is a notch in the end face of the water supply port on the tank bottom side of the water supply pipe, and even if the pipe contacts the tank bottom surface, a water supply flow path is secured and water can be supplied even when the remaining amount of water is low There is a problem that the dust settled on the bottom surface easily flows from the water supply pipe to the pump as the water supply means, and the pump is likely to break down.

  In addition, since the cover is fixed to the front of the tank with screws, it is difficult to clean between the tank and the cover when cleaning the tank. The problem was also concerned.

  In addition, a flexible material such as silicon is used for the connection between the water supply pipe and the main body to make it difficult for water to leak. There was also the problem of getting wet with water drops.

  The present invention has been made to solve the above-described problems. When the remaining amount of water in the water storage tank decreases, the water flows smoothly to the water supply pipe side and settles on the bottom surface of the water storage tank. It is an object of the present invention to provide a heating cooker that can reduce a failure caused by waste dust flowing into the water supply means.

  A heating cooker according to the present invention includes a heating chamber for storing an object to be heated, heating means for heating the object to be heated, steam generating means for supplying steam to the heating chamber, and water to be sent to the steam generating means. In a cooking device comprising a storage tank for storing water and a supply means for sending water from the condition tank to the steam generating means, the water storage tank includes a tank container having an open top surface and a lid capable of closing the top surface of the tank container. The tank has a water supply pipe integrated with the lid, and the inner bottom surface of the tank container is formed as an inclined bottom surface that gradually increases in depth as it comes to the water supply pipe side. A convex portion is provided, and the water inlet of the water supply pipe is set to a position close to the bottom surface of the tank container when the upper surface of the tank container is closed by the lid.

  A heating cooker according to the present invention has a tank container in which a water storage tank for storing water to be sent to the steam means is opened, a lid capable of closing the upper surface of the tank container, and a water supply pipe integrated with the lid, The inner bottom surface of the tank container is formed as an inclined bottom surface that is inclined so that the depth gradually increases toward the water supply pipe side, and the inclined bottom surface is provided with a rib-like convex portion, and the upper surface of the tank container is covered with the lid. The water inlet of the water supply pipe is set so as to be close to the bottom of the tank container when it is blocked by the water. Smoothly flows and the water in the water storage tank can be used effectively to the end. Dust that settles on the inclined bottom surface of the tank container is blocked by the rib-shaped projections, and the dust enters the water supply means. Hard to let Reducing the failure of the water supply means, the effect of improving reliability.

Embodiment 1 FIG.
1 is a side cross-sectional view of the cooking device of the first embodiment of the present invention as seen from the left side, FIG. 2 is a right side sectional view of the cooking device, and FIG. 3 is a soup / tank receiving member of the cooking device. FIG. 4 is a perspective view showing a state in which the water storage tank is assembled to the soup / tank receiving member of the heating cooker, and FIG. 5 is a perspective view of the heating cooker. FIG. 6 is a perspective view of the upper lid of the water storage tank of the heating cooker, FIG. 7 is a perspective view of a water storage container of the water storage tank of the heating cooker, and FIG. 8 is a water storage tank of the heating cooker. The perspective view of a cover and FIG. 9 are the principal part longitudinal cross-sectional views of the water storage tank of the heating cooker.
A main body 1 of a heating cooker according to Embodiment 1 of the present invention mounts a heating chamber 2 that houses a heated object 4 such as food to be cooked, and a heated object 4 provided on the bottom surface of the heating chamber 2. The mounting plate 3, the hot air circulating means 5 that circulates and heats the hot air that is the heating means for heating the object 4 accommodated in the heating chamber 2, the magnetron 6 that radiates and heats the microwave, and the microwave is guided. It comprises a waveguide 7, a rotating antenna 8, an antenna motor 9, and the like.

Since the magnetron 6, the waveguide 7, the rotating antenna 8, the antenna motor 9 and the like are already known, detailed description thereof will be omitted, but these components are shown in the heating chamber 2 and the main body 1 as shown in the figure. It is arrange | positioned in the machine room 30 between the bottom surfaces.
The hot air circulation means 5 used for oven cooking constitutes a hot air supply means. The fan case 5a, the air blowing means 10 such as a fan rotatably provided at substantially the center in the fan case 5a, and the air blowing means. 10, a heating means 12 such as a heater provided on the outflow side of the air flow, a heat shield plate 5b provided on the outside of the fan case 5a, and a fan attached to substantially the center of the heat shield plate 5b. The hot air circulation means 5 is arranged on the back surface of the main body 1.

The rear plate 2a of the heating chamber 2 is provided with a plurality of punching holes 2b and blowout holes 2c. The suction hole 2b faces the substantially central portion of the blower means 10, that is, the airflow suction hole 2b. The blowout hole 2 c is provided at a position facing the heating means 12.
A door 26 that can be opened and closed is provided in front of the main body 1 for taking in and out the article 4 to be heated.
The heating cooker according to the first embodiment is a so-called turntableless type microwave oven that does not have a rotating table in the center of the heating chamber 2.

Reference numeral 13 denotes steam generating means, which is composed of a container 13a to which water is supplied, a heater 13b for heating the container 13a, a temperature detector (not shown) such as a thermistor, and the like. 5 is arranged beside.
The container 13a is made of an aluminum material such as aluminum die-casting or a metal material that hardly rusts such as stainless steel, and the heater 13b is made of a sheathed heater or the like embedded in the meat part of the container 13a. However, the container 13a and the heater 13b are not necessarily limited to these configurations. The container 13a preferably has a small heat capacity in order to shorten the heating time, and the container 13a and the heater 13b are limited to this specification and numerical values. There is no need, and the container 13a and the heater 13b may each be divided into a plurality of pieces.
Moreover, if the outer wall of the steam generating means 13 is covered with a heat insulating material to suppress heat dissipation to the surroundings, the temperature rise time is shortened, leading to improvement in heating efficiency / energy saving.

The supply of water to the container 13a is performed by the first water supply line 16 connecting the water storage tank 14 and the pump 15 which is water supply means, and the second water supply line connecting the pump 15 and the steam generating means 13. The operation is carried out by operating the pump 15 via 17. The water supplied to the steam generating means 13 is preferably tap water or the like containing some chlorine components in view of hygiene.
The water supplied to the steam generating means 13 is stored in the container 13a of the steam generating means 13, heated by the heater 13b and evaporated to become steam, and the heating chamber 2 is supplied from the steam outlet 13c provided in the steam generating means 13. Supplied in.

As shown in FIG. 3, an upper surface having a tank receiving portion 21 for receiving condensed water from the main body 1 on the right side and a tank receiving portion 22 larger than the soot receiving portion 21 on the left side, as shown in FIG. An open soup / tank receiving member 20 is detachably provided.
A water storage tank 14 is detachably provided in a tank receiving portion 22 of the soup / tank receiving member 20. The water storage tank 14 includes a long and narrow tank container 14a and an upper cover 14b that covers the entire upper surface of the tank container 14a.

The inner bottom surface of the tank container 14a is formed as an inclined bottom surface that is inclined so that the depth gradually increases toward the water supply pipe. A rib-like convex portion 18 extending in the width direction is provided over the entire width on the water supply pipe side of the inclined bottom surface of the tank container 14a. It is desirable that the height of the rib-shaped convex portion 18 is at a high position slightly beyond a position where a water supply port 19a of a water supply pipe 19 described later is close to the bottom surface of the tank container 14a.
In this way, the inner bottom surface of the tank container 14a is formed as an inclined bottom surface that is inclined so that the depth gradually increases as it comes to the water supply pipe side, so that the water in the water storage tank 14 can be used effectively to the end. .
Moreover, since the rib-shaped convex part 18 extended in the width direction is provided in the width direction in the water supply pipe side of the inclined bottom face, the dust etc. which settled on the inclined bottom face of the tank container 14a are the rib-shaped convex part 18. It is possible to provide a heating cooker that is blocked and that makes it difficult for dust to enter the pump 15 as water supply means, reduces the failure of the pump 15, and improves reliability.

A water supply port 14c for replenishing water is provided on one end side of the upper lid 14b of the water storage tank 14, and a lid 14d that slides to close the water supply port 14c is provided. On the other end side of the upper lid 14b, a water supply pipe 19 is provided integrally with the lid 14b.
The water inlet 19a at one end of the water supply pipe 19 facing the water storage tank 14 is located close to the bottom surface of the tank container 14a when the upper cover 14b is covered with the tank container 14a, and the pump 15 sucks water in the tank container 14a. To be able to.
Further, since the water inlet 19a of the water supply pipe 19 has a notch 19c having a step as shown in FIG. 9, when the water in the tank container 14a is sucked out by the pump 15, the water inlet 19a contacts the bottom surface of the tank 14. Even in the case of contact, the water inlet 19a is not blocked and water cannot be sucked out.

Further, when the water storage tank 14 is attached to the tank receiving portion 22, the outlet 19 b at one end of the water supply pipe 19 and the end of the first water supply pipe 16 are connected in a watertight state at the joint portion 29. A concave water receiving portion 23 connected to the soup / tank receiving member 20 is provided below the joint portion 29.
Considering that water in the first water supply pipe 16 leaks out when the first water supply pipe 16 is detached from the joint part 29, in order to discharge this water leak to the water receiving part 23, The bottom plate of the main body 1 on the lower side of the portion 29 has a channel-shaped channel 24, and the end of the channel-shaped channel 24 is provided with a hole 25 as shown in FIG. It can be stored in the concave water receiving portion 23 connected to the receiving member 20, and water leakage to the floor surface can be prevented.

Further, the water storage tank 14 is detachably provided by being inserted into a tank receiving portion 22 of a soup / tank receiving member 20 detachably provided at the lower front of the main body 1 so that it can be easily taken out from the front of the main body 1. Yes.
When the water storage tank 14 is attached to the tank receiving portion 22 of the soup / tank receiving member 20 and attached to the main body 1, the front of the water storage tank 14 is designed so that there is no sense of incongruity in design when viewed from the front of the main body 1. A cover 27a is provided. A cover 27b is also provided on the front surface of the soup receiving portion 21 of the soup / tank receiving member 20 so that the design 1 does not cause a sense of incongruity when viewed from the front of the main body 1.

A water level confirmation window 28 is provided at the left end of the cover 27 of the water storage tank 14 when viewed from the front of the main body 1 so that the water level can be easily confirmed when viewed from the front of the main body 1. Since the water storage tank 14 is formed of a transparent material, the water level of the water storage tank 14 can be easily seen through the water level confirmation window 28 from the outside when water is poured into the water storage tank 14.
Further, the lid 14b of the water storage tank 14 is provided with an air hole 14f in the vicinity of the water supply pipe 19, and when the water in the water storage tank 14 is sucked out by the operation of the pump 15, the air hole 14f enters the tank 14 from the air hole 14f. Air is flowing in.

Embodiment 2. FIG.
FIG. 10 is a longitudinal sectional view of an essential part of the water storage tank of the heating cooker according to the second embodiment of the present invention.
In the second embodiment, a plurality of rib-shaped convex portions 18 are provided in a stepped manner on the inclined bottom surface of the tank container 14a of the water storage tank 14 of the first embodiment.
In this way, by providing a plurality of rib-like convex portions 18 in a stepped manner on the inclined bottom surface of the tank container 14a, dust or the like that has settled in the tank container 1 is caused by each rib-like convex portion 18. Therefore, it is possible to prevent the pump 15 from being broken, and to prevent the dust from entering the pump 15 which is the water supply means.

Embodiment 3 FIG.
FIG. 11 is a longitudinal sectional view of a main part of the water storage tank of the heating cooker according to the third embodiment of the present invention.
The third embodiment should be referred to as a modification of the second embodiment, and a groove 31 is provided on each upstream side of a plurality of rib-shaped convex portions 18 provided in a stepped manner on the inclined bottom surface of the tank container 14a. Is provided.
Thus, by providing a plurality of rib-like convex portions 18 in a stepped shape on the inclined bottom surface of the tank container 14a and providing the grooves 31 on the upstream side of the respective rib-like convex portions 18, the tank Dust and the like settled in the container 1 are likely to collect in each groove 31 and the settled dust and the like are less likely to get over the rib-like convex portion 18, so that the dust can be more reliably caught and the dust and the like are collected by the water supply means. It is possible to make it difficult for dust to enter a certain pump 15, and to reduce the failure of the pump 15.

Embodiment 4 FIG.
FIG. 12 is a longitudinal sectional view of a main part of the water storage tank of the heating cooker according to the fourth embodiment of the present invention.
In the fourth embodiment, a rib-like convex portion 32 is provided in a substantially ring shape around the water supply pipe on the inclined bottom surface of the tank container 14a of the water storage tank 14.
As described above, since the rib-like convex portion 32 is provided in the ring shape around the water supply pipe on the inclined bottom surface of the tank container 14a, the dust or the like that has settled in the tank container 1 is substantially reduced around the water supply pipe. Since the ring-shaped and rib-shaped projections 18 are dammed outside, the water in the tank container 14a can be used up to a state where the remaining water amount is small, and the dust settled in the tank container 14a can be more reliably captured. It is easy to make it difficult for dust to enter the pump 15 which is a water supply means, and to reduce the failure of the pump 15.

Embodiment 5 FIG.
FIG. 13: is a principal part longitudinal cross-sectional view of the water storage tank of the heating cooker of Embodiment 5 of this invention.
In the fifth embodiment, as in the fourth embodiment, a rib-shaped convex portion 32 is provided in a substantially ring shape around the water supply pipe on the inclined bottom surface of the tank container 14a of the water storage tank 14, and the tank The end surface of the water supply port 19a of the water supply pipe 19 adjacent to the bottom surface of the container 14a is set to be lower than the height of the convex portion 32.
As described above, the rib-like convex portion 32 is provided in a ring shape around the water supply pipe on the inclined bottom surface of the tank container 14a of the water storage tank 14, and the water supply port 19a of the water supply pipe 19 close to the bottom surface of the tank container 14a. By setting the end surface to be lower than the height of the convex portion 32, even if the amount of remaining water in the tank container 14a is small, the ring-shaped convex portion 32 is formed in a substantially ring shape around the water supply port 19a. Therefore, it is possible to make it difficult to inhale dust.
The fifth embodiment is most effective when rib-shaped convex portions 32 are provided in a substantially ring shape around the water supply pipe on the inclined bottom surface of the tank container 14a as in the fourth embodiment. However, the rib-shaped convex portion 18 of the first to third embodiments is also set so that the end surface of the water supply port 19a of the water supply pipe 19 adjacent to the bottom surface of the tank container 14a is lower than the height of the convex portion 18. The same effect is exhibited.

Embodiment 6 FIG.
FIG. 14 is a perspective view of the upper lid of the water storage tank of the heating cooker according to the sixth embodiment of the present invention.
In the sixth embodiment, the upper lid 14b of the water storage tank 14 is provided with a water supply port 14c and a slide lid 14d that closes the water supply port 14c, and an outlet 19b of the water supply pipe 19 arranged on the left end side of the upper lid 14b. .
In this way, by providing the water supply port 14c and the outlet 19b of the water supply pipe 19 on the left end side of the water storage tank 14, the left end side where the water supply port 14c and the like are provided is slightly up and water is supplied or carried. Therefore, it is possible to prevent the water storage tank 14 from being tilted by mistake and water from leaking from the water supply port 14 c, the outlet 19 b of the water supply pipe 19, the air hole 14 f, and the like, thereby improving usability. There is.
In the sixth embodiment, the water supply port 14c and the slide cover 14d and the outlet 19b of the water supply pipe 19 are arranged on the left end side of the upper cover 14b in the upper cover 14b. Even if the outlet 19b of the water supply pipe 19 is disposed on the right end side of the upper lid 14b, the same effect as that provided on the left end side can be obtained.

Embodiment 7. FIG.
In the seventh embodiment, the cover 27a is provided on the front surface of the water storage tank 14 of the first to sixth embodiments. The cover 27a can be engaged with the front surface of the water storage tank 14, for example. In addition, when the tank container 14a is cleaned, even if water droplets are collected between the tank container 14a and the cover 27a, the cover 27a can be easily wiped off when the tank container 14a is cleaned. It is possible to reduce the drop of water droplets on the surface, and it can be used cleanly and hygienically for a long time.

The left side sectional view of the cooking-by-heating machine of Embodiment 1 of the present invention. The right side sectional view of the heating cooker. The cross-sectional view which shows the arrangement | positioning state of soup and a tank receiving member of the same heating cooker, a water storage tank, and a channel-shaped flow path. The perspective view which shows the assembly | attachment state to the soup and tank receiving member of the water storage tank of the heating cooker. The perspective view of the water storage tank of the heating cooker. The perspective view of the upper cover of the water storage tank of the heating cooker. The perspective view of the water storage container of the water storage tank of the heating cooker. The perspective view of the cover of the water storage tank of the heating cooker. The principal part longitudinal cross-sectional view of the water storage tank of the same heating cooker. The principal part longitudinal cross-sectional view of the water storage tank of the heating cooker of Embodiment 2 of this invention. The principal part longitudinal cross-sectional view of the water storage tank of the heating cooker of Embodiment 3 of this invention. The principal part longitudinal cross-sectional view of the water storage tank of the heating cooker of Embodiment 4 of this invention. The principal part expanded sectional view of the water storage tank of the heating cooker of Embodiment 5 of this invention. The perspective view of the upper cover of the water storage tank of the heating cooker of Embodiment 6 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Main body, 2 Heating chamber, 3 Mounting plate, 4 To-be-heated object, 5 Hot-air circulation means (heating means), 6 Magnetron (heating means), 13 Steam generation means, 14 Water storage tank, 14a Water storage container, 14b Top cover, 15 Pump, 16 1st water supply line, 17 2nd water supply line, 18 convex part, 19 water supply pipe, 20 soup / tank receiving member, 21 soup receiving part, 22 tank receiving part, 23 water receiving part, 29 joint part.

Claims (7)

A heating chamber for containing an object to be heated, a heating means for heating the object to be heated, a steam generating means for supplying steam to the heating chamber, a water storage tank for storing water to be sent to the steam means, and water in the water storage tank A heating cooker provided in a main body with supply means for sending the steam generation means to the steam generation means,
The water storage tank has a tank container having an open upper surface, a lid capable of closing the upper surface of the tank container, and a water supply pipe integrated with the cover, and the inner bottom surface of the tank container gradually becomes closer to the water supply pipe side. It is formed as an inclined bottom surface that is inclined so as to have a deep depth, and a rib-like convex portion is provided on the inclined bottom surface, and when the upper surface of the tank container is closed by the lid, the water inlet of the water supply pipe serves as a tank. A cooking device characterized by being set so as to be in a position close to the bottom surface of the container.   2. The heating according to claim 1, wherein a plurality of the rib-shaped convex portions provided on the inclined bottom surface of the tank container extend in the width direction over the entire width and are stepped on the inclined bottom surface. Cooking device.   The cooking device according to claim 2, wherein a groove is provided on each upstream side of the plurality of rib-like convex portions provided in a stepped manner on the inclined bottom surface of the tank container.   The cooking device according to claim 1, wherein the rib-shaped convex portion provided on the inclined bottom surface of the tank container is formed in a substantially ring shape around a water supply pipe.   The end surface of the water supply pipe close to the inclined bottom surface of the tank container is set to be lower than the height of the rib-like convex portion provided on the inclined bottom surface. The cooking device described.   6. The cooking device according to claim 1, wherein the water storage tank is detachably provided at a lower front portion of the main body, and a cover is detachably provided on a front surface of the water storage tank.   The water storage tank is provided at a lower part of the front surface of the main body, and is detachably provided on a soot / tank receiving member having a soot receiving portion for receiving condensed water from the main body, and an outlet of a water supply pipe of the water storage tank and the main body The cooking device according to claim 1, wherein a concave water receiving portion integral with the soup / tank receiving member is provided at a lower portion of a joint portion connecting to a water supply pipe receiving port provided in the water.

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