JPH08145419A - Water boiler - Google Patents

Abstract

PURPOSE: To provide a water boiler which enables the shortening of boiling time up to startup while facilitating cleaning in a water tank. CONSTITUTION: A heater 9 is provided in an outer case 1 to heat the inside of an outer water tank 2 and an inner water tank 11 is provided with a heating area 13 formed between the tank and the outer water tank 2 to heat water in the heating area 13 with the heater 9 thereby enabling the shortening of rising-time in heating water up to a usable temperature. Moreover, the inner water tank 11 is made free to load on or unload from a broad mouthed outer water tank to facilitate the cleaning of the outer and inner water tanks by taking out the inner water tank.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater such as a jar pot for heating water, a water heater, a humidifier for heating water to generate steam.

[0002]

2. Description of the Related Art The structure of a conventional water heater of this type is shown in FIGS. 5 and 6, wherein FIG. 5 shows a conventional jar pot, and FIG. 6 shows a humidifier, both of which are water. Is to heat.

In the jar pot 50 shown in FIG. 5,
A water tank (outer water tank) 53 provided in the outer case 51 is filled with water, an electric heater 55 provided in the water tank 53 is energized to boil the water in the water tank 53, and a lid 57 that closes the wide mouth opening. It is configured to open and supply water.

On the other hand, the conventional humidifier 60 shown in FIG. 6 is of the storage type, in which the water supplied to the heating tank 61 is heated by the electric heater 63, and the water supply tank 6 is used.
The water supplied to the heating tank 61 from the water supply tank 66 in which 5 is set is heated by the heater 63 and evaporated from the humidifying cylinder 67.

In the above-mentioned water heater such as the jar pot 50 and the warmer 60, the water tank 53 and the warmer tank 61 generate steam by heating. It needs to be cleaned from time to time as the ingredients are left behind or sticky.

[0006]

However, the conventional jar pot 50 is excellent in terms of cleaning because the whole volume of the water tank 53 is wide and it is easy to clean through the wide mouth opening, but the entire stored water is heated. Since the hot water is boiled from the water in the tank, it takes a certain amount of time for the hot water to boil, and there is a problem that it takes time before the hot water can be used.

On the other hand, in the case of the warming device shown in FIG. 4, in which the volume of the heating tank 61 is reduced to replenish the water evaporated in the water supply tank 65, the volume of water to be heated in the initial stage Although it takes less time to generate steam, there is a problem that it is difficult to clean residual components such as chlorine adhered to the inner surface of the tank because the inside of the tank is narrow.

[0008] Therefore, an object of the present invention is to provide a water heater in which the water heating time before rising is short and the inside of the water tank can be easily cleaned.

[0009]

The present invention according to claim 1 is an outer case, an outer water tank provided in the outer case and having a wide mouth opening at an upper portion, and a heater for heating the outer water tank. An inner water tank that is detachably provided inside the outer water tank and forms a heating region between the outer water tank and the outer water tank, and an openable and closable canopy that covers the wide opening of the outer case.

According to a second aspect of the present invention, an outer case, an outer water tank provided in the outer case and having a wide mouth opening at the upper portion, a heater for heating the inside of the outer water tank, and an inside of the outer water tank are provided. An inner water tank that is detachably provided and has a communication hole that forms a heating area with the outer water tank and that communicates with the heating area; and an openable and closable canopy that covers the wide opening of the outer case, the communication hole Are communicated at a position lower than the heater.

According to a third aspect of the present invention, an outer case, an outer water tank provided in the outer case and having a wide mouth opening at the top, a heater for heating the inside of the outer water tank, and an inside of the outer water tank. The inner water tank is detachably provided with an inner water tank that forms a heating region between the outer water tank and the outer water tank and has a communication hole that communicates with the heating region, and an openable / closable canopy that covers a wide opening of the outer case. The lower part thereof is provided with a sliding plate slidable on the inner peripheral surface of the outer water tank when pulled out from the wide mouth opening.

[0012]

According to the first aspect of the invention, the water is stored inside the inner water tank, and the water in the heating region between the inner water tank and the outer water tank is heated by the heater. When the heated hot water is consumed (hot water supply) or emitted as steam, water is replenished from the inner water tank to the heating area through the communication hole. Therefore, since the heater does not heat the entire water tank but only the heating region which is a part of the water tank, the rise time for heating the water to the required temperature is short. Moreover, since the inner water tank can be attached to and detached from the wide-mouthed outer water tank, the outer water tank and the inner water tank can be easily cleaned by removing the inner water tank.

According to a second aspect of the invention, in the first aspect of the invention, since the communication hole is arranged below the heater, the hot water heated by the heater moves upward while the inner water tank The water having a low temperature inside is supplied to the heating region from below through the communication hole. Therefore, the hot water in the heating area is less likely to mix with the water inside the inner water tank through the communication hole, and the temperature drop of the hot water in the heating area is prevented.

According to the third aspect of the invention, when the inner water tank is taken out from the wide opening of the outer water tank, the sliding plate slides on the inner peripheral surface of the outer water tank and adheres to the inner wall of the outer water tank. Scrape off water stains. Therefore, cleaning is easy.

[0015]

Embodiments of the present invention will be described below with reference to FIGS.

The heater humidifier according to the embodiment of the present invention is provided with an outer case 1 and an outer water tank 2 having an upper opening inside the outer case 1. One end of the outer case 1 is pivotally supported. It has a canopy 3 that can be opened and closed.

The outer case 1 is formed of a resin material in a cylindrical shape, and an outer water tank 2 is housed inside the outer case 1 with a heat retaining space 4 interposed therebetween. The outer water tank 2 has a wide opening 2a, and water is poured into the tank through the wide opening 2a. By thus configuring the external water tank 2 in which water is stored to have a wide opening, the inside of the external water tank can be easily washed. In particular, the vicinity of the bottom surface of the outer water tank where water stains and scaly are likely to accumulate is easily accessible and easy to clean.

The outer water tank 2 is formed of a stainless material or the like into a cylindrical shape. The bottom portion 2b of the outer water tank 2 is formed in a step shape so that the center portion 2c of the bottom surface is the lowest.
Water stains and scaly are gathering in the center.

A heater 9 is wound around the outer water tank 2, and when energized, heats the entire water in the outer water tank 2 to generate steam.

Inside the outer water tank 2, an inner water tank 11 having a substantially cylindrical shape is arranged like the outer water tank. This inner water tank 11
Is made of a heat-resistant resin or a stainless steel material, and its bottom 11b is also formed in a stepwise manner so that the center thereof is the same as the outer water tank 2.

The inner water tank 11 and the outer water tank 2 define a heating region 13 in which water is heated, and the water in the heating region 13 is directly heated by the heater 9. Therefore, the heater 9 does not heat the whole of the outer water tank 2, but positively heats only a part of the outer water tank 2. Therefore, the temperature of the part rises quickly, and the desired temperature is heated in a short time. be able to. Therefore, it is possible to shorten the rise time until the state becomes the usable state.

A communication hole 17 is formed in the bottom portion 11b of the inner water tank 11.
Is formed, the inside of the inner water tank 11 and the heating region 13 are communicated with each other, and the water consumed (evaporated) in the heating region 13 is supplemented.

The communication hole 17 is located below the heater 9 in the heating region 13, the heated water moves upward, and the water in the inner water tank 11 is supplied to the heating region 13 from the communication hole 17. It is like this. By providing the communication hole 17 below the heater 9, the hot water heated in the heating region 13 rises, so that it is difficult to mix with the water inside the inner water tank 11 via the communication hole 17 below. Therefore, it is possible to prevent the temperature from decreasing due to mixing with the water in the inner water tank.

A sliding plate 21 is attached to the bottom portion 11b to slide on the inner peripheral wall of the outer water tank 2 to scrape off water stains and the like adhering to the inner peripheral surface. This sliding plate 21 is shown in FIGS.
As shown in FIG. 3, a disc is press-molded into a step shape.

The bottom portion of the inner water tank 11 is fixed to the central portion 21a of the sliding plate 21, and the communication hole 17 is located so as to face it. The fixing to the inner water tank 11 may be performed by welding or meshed with a screw. Further, the peripheral portion 21b of the sliding plate 21 is made of an elastic member such as rubber or resin material or is coated so that the inner surface is not easily scratched when the outer water tank 2 is rubbed off.

As will be described with reference to FIG. 1 again, the canopy 3 is provided with an upper cover 3a and an inner cover 3b.
A large number of holes 25 for taking in the steam generated in the humidifying tank 2 are formed in b, and packing (not shown) is provided in the peripheral portion.

A steam outlet 27 is formed in the center of the upper cover 3a of the canopy 3 so that the steam generated in the heating area 13 is discharged.

Next, the operation of the heater type humidifier according to this embodiment will be described.

Before use, first, the canopy 3 is opened, water is directly poured into the outer water tank 2 through the wide opening 2a, water is supplied to a predetermined position, and the canopy 3 is closed. in this way,
Since water is poured directly into the outer water tank 2 through the wide opening 2a, the water can be easily supplied.

At the time of use, the switch is turned on to energize the heater 9. As a result, the water in the humidifying tank 2 is heated and steam is generated in the humidifying tank 2. The heater 9 does not heat the entire water in the outer water tank 2, but only heats the water in the heating area 13 between the inner water tank 11 and the outer water tank 2, so that the water in the heating area is boiled. It takes a short time to get into the state. That is, the rise time from the input of the switch to the start of humidification by blowing out steam is extremely short.

Moreover, the water heated by the heater 9 rises, and the water having a high temperature moves sequentially upward to generate steam. The water reduced by evaporation is replenished from the inside of the inner water tank 2 through the communication hole 17.

During use, scaly and scales such as calcium salts in tap water are likely to adhere to or settle in the humidifying tank 2. In particular, in the heater-type humidifier, moisture evaporates, so that chlorine or the like tends to adhere to the inside of the humidifying tank. That is, when the water in the water tank, particularly tap water is used during steam generation, scaly water and scales in the water gradually precipitate, or adhere to the wall surfaces of the outer water tank 2 and the inner water tank 11. Such water stains lower the heat conductor rate or are not preferable from the viewpoint of hygiene, so they must be removed by cleaning.

When cleaning the inside of the outer water tank 2 and the inner water tank 11, the canopy 3 is opened and the inner water tank 11 is pulled out from the wide opening 2a as shown in FIG. When the inner water tank 11 is pulled out, the outer peripheral edge portion 21b of the sliding plate 21 fixed to the lower portion slides on the inner surface of the outer water tank 2 to scrape off water stains, scaly, and the like.

Further, scaly or the like settled at the bottom in the heating region 13 between the outer water tank 2 and the inner water tank 11 is deposited on the disk of the sliding plate 21. Therefore, it is possible to easily remove the slide plate 21 that has been pulled out by cleaning it together with the inner water tank 11. Moreover, since the inner water tank 11 is pulled out from the outer water tank 2, the inner water tank 11 and the sliding plate 21 can be removed from the outer water tank 2 at a time, and the tap can be washed with a tap of a tap.

The outer water tank 2 is normally washed by putting a hand into the wide mouth opening 2a, but since the inner peripheral surface of the outer water tank 2 has already been rubbed with water stains or the like, it can be easily cleaned.

The present invention is not limited to the above-mentioned embodiments, but can be variously modified without departing from the gist of the present invention.

For example, the sliding plate 21 is, as shown in FIG.
Even if it is formed in a ring shape, the same effect can be obtained.

Further, although the present invention has been described by using the humidifier as an example, the present invention is not limited to this, and the same effect can be obtained by using it in a jar pot for boiling hot water or a water heater such as a water heater. it can.

[0039]

According to the first aspect of the present invention, water is stored inside the inner water tank, and the water in the heating area defined between the inner water tank and the outer water tank is heated by the heater. Therefore, since the heater does not heat the entire water tank but only the heating region, the rise time for heating water to a usable temperature can be shortened. Moreover, since the inner water tank can be attached to and detached from the wide-mouthed outer water tank, the outer water tank and the inner water tank can be easily cleaned by removing the inner water tank.

According to a second aspect of the invention, in the first aspect of the invention, since the communication hole is arranged below the heater, the hot water heated by the heater moves upward and is in the heating region. It is possible to prevent the hot water from mixing with the water inside the inner water tank through the communication hole located below. Therefore, the temperature drop of the hot water in the heating region is prevented.

According to the third aspect of the present invention, when the inner water tank is taken out from the wide opening of the outer water tank, the sliding plate slides on the inner peripheral surface of the outer water tank and adheres to the inner wall of the outer water tank. Scrape off water stains. Therefore, cleaning is easy.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a heater-type humidifier according to an embodiment of the present invention.

FIG. 2 is a vertical cross-sectional view showing a state in which an inner water tank is taken out from the heater type humidifier shown in FIG.

FIG. 3 is a plan view showing a sliding plate attached to an inner water tank.

FIG. 4 is a plan view showing a modified example of a sliding plate.

FIG. 5 is a vertical sectional view of a conventional jar pot.

FIG. 6 is a vertical sectional view of a conventional heater-type humidifier.

[Explanation of symbols]

 1 Exterior Case 2 External Water Tank 3 Canopy 9 Heater 11 Inner Water Tank 17 Communication Hole 21 Sliding Plate

Front page continuation (72) Inventor Kyoko Yoshida 2-5-5 Keihan Hondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd. (72) Inventor Katsumi Morito 2-5-5 Keihan-hondori, Moriguchi-shi, Osaka Sanyo Electric Co., Ltd.

Claims (3)

[Claims] 1. An outer case, an outer water tank provided in the outer case and having a wide mouth opening at an upper portion, a heater for heating the outer water tank, and the outer water tank detachably provided inside the outer water tank. An inner water tank that forms a heating region between
A water heater provided with a canopy that can be opened and closed to cover a wide-mouth opening of the outer case. 2. An outer case, an outer water tank provided in the outer case and having a wide opening at the top, a heater for heating the outer water tank, and the outer water tank detachably provided inside the outer water tank. An inner water tank having a communication hole that forms a heating area between the heating area and the heating area, and an openable and closable canopy that covers the wide opening of the outer case, the communication hole communicating at a position lower than the heater. A water heater characterized by being used. 3. An outer case, an outer water tank provided in the outer case and having a wide opening at the top, a heater for heating the inside of the outer water tank, and the outer water tank detachably provided inside the outer water tank. An inner water tank having a communication hole that forms a heating region between the inner water tank and the heating region, and an openable and closable canopy that covers the wide mouth opening of the outer case, and the inner water tank has the wide mouth opening at the bottom thereof. A water heater comprising a sliding plate that is slidable on the inner peripheral surface of the outer water tank when pulled out from the water heater.