JP2583532Y2 - Water heater - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater, for example, which is suitable for use in a water heater for boiling hot water for milk preparation.

[0002]

2. Description of the Related Art Conventionally, the temperature of hot water when formulating powdered milk given to an infant, that is, the optimal temperature for formulating milk, is about 40 to 60 degrees Celsius. This takes into account the temperature of breast milk at about 40 degrees Celsius and the temperature at which the breakdown of immune substances and vitamins begins at about 60 degrees Celsius.

[0003] In order to obtain this hot water, the water is not heated from the beginning to a suitable temperature for the preparation of the milk, but is used by cooling the boiling water for sterilization to a suitable temperature for the preparation of the milk. For this reason, conventionally, after boiling water in a kettle, the kettle is cooled naturally with tap water or cooled with tap water.

[0004]

[Problems to be solved by the invention] However, such a method of naturally cooling hot water boiled in a kettle or cooling with tap water takes time and cumbersome time, and There was a problem that it was difficult to maintain this temperature even if the milk was cooled to an appropriate temperature.

[0005] In order to solve such a problem, for example, a device having a heat insulating bottle structure, in which boiling water is cooled to a suitable temperature for preparation over a predetermined period of time, and maintained.
There is an electric pot having an electric pot structure in which water is once boiled so as to keep the temperature at an appropriate temperature for preparing the milk. However, in each case, the water is once boiled and cooled, so that it takes a long time to obtain hot water having a suitable temperature for the preparation of the milk, and the usability is still insufficient. When the device is configured as a milk preparation device, it is desirable that the device can be used as cleanly as possible.

The present invention has been made in consideration of the above points, and can greatly improve the usability of a user. In addition, the boiling water is cooled down to a predetermined temperature in a short time to keep the temperature of the apparatus clean so that the apparatus is kept clean. An object of the present invention is to provide a water heater that can be used.

[0007]

According to the present invention, there is provided the present invention, wherein water stored in a water container is guided to a pipe communicating with the water container, and the pipe is routed to a heating section. The pipe is heated by the heating pipe portion and boiled, and cooled again to a predetermined temperature by the cooling pipe portion of the pipe returned to the water container, and stored in the storage container. In the water heater kept at a predetermined temperature, the water outflow portion of the water container and the pipe mounting portion of the cooling pipe portion in the water container are each configured to be detachable from the water heater device body. Is achieved by

[0008]

According to the above construction, the water outflow portion of the water container and the pipe mounting portion of the cooling pipe portion in the water container are attached to, for example, the water receiving portion and the pipe receiving portion of the water heater main body, respectively. On the other hand, the water container was made removable. Thereby, it is possible to easily attach and detach the water container to draw water, clean the inside of the water container, and clean the cooling pipe itself.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. Note that the embodiments described below are
Since it is a preferred specific example of the present invention, various technically preferred limitations are added, but the scope of the present invention is limited to the following description unless otherwise specified in the following description.
It is not limited to these embodiments.

In FIG. 1, reference numeral 1 generally shows the structure of a water heater according to the present invention. The water heater 1 communicates with, for example, a water tank 2 in which water for milk preparation is stored, and a hole formed in the bottom surface of the water tank 2 and provided with a check valve. It is mainly composed of a pipe 4 drawn into the section 3 for boiling water, and a server 5 for receiving hot water jetted from the pipe 4.

In the case of this water heater 1, the pipe 4 is routed to the server 5 through the water tank 2, and the hot water heated and heated by the heating unit 3 is heated to a suitable temperature by the heat exchange using the water temperature in the water tank 2. Cool down and squirt. The pipe 4 is formed so as to have a spiral shape 4A near the bottom surface in the water tank 2, so that the heat exchange efficiency at the time of cooling can be improved.

The server 5 has a bottom surface disposed at a predetermined distance from the heating unit 3, so that the server 5 receives hot water spouted from the pipe 4 at an appropriate temperature and stores the hot water. The hot water stored by the heating of No. 3 is kept at, for example, a suitable temperature for milk preparation.

FIG. 2 specifically shows the appearance of the water heater shown in FIG. 1, in which the same reference numerals are given to the parts corresponding to those in FIG. 2, a power switch 7A with a lamp is provided on an operation panel 7 disposed below the case 6.
A boiling heat keeping changeover switch 7B having a push switch configuration is arranged, and a boiling lamp 7C and a heat keeping lamp 7D are arranged for displaying an operation state.

In the case of the water heater 1, a lid 28 is provided so as to cover the water tank 2 and the server 5, so that intrusion of dust and the like into the water tank 2 can be prevented. At the upper end of the water tank 2, a handle 9 for use only when the water tank 2 is detached from the case 6 is arranged.

When the cover 28 is mounted, the handle 9 is shaped so as to be blocked by the corners of the cover 28 as shown in FIG. 2A, and only when the cover 28 is removed. can be moved to the positions shown in FIGS.
It can be used only in a state where it is removed. This makes it possible to prevent an accident in which the server 5 falls obliquely when the handgrip handle 9A is lifted with the server 5 set, for example.

FIG. 3 in which parts corresponding to those in FIG.
Shows an enlarged structure of the upper half of the water heater 1 of the embodiment. An upper portion of the pipe 4 is fixed by a pipe fixing member 10 locked to a locking portion 2B of an eaves portion 2A provided on an upper portion of the water tank 2, and a tip 4B of the pipe 4 has an opening 2C provided in the eaves portion 2A. Is led to. Around the opening 2C, a receiving portion 2D of a shape corresponding to the distal end portion 4B of the pipe 4 is formed with an inner diameter slightly larger than the distal end portion 4B, and steam is removed through a slight gap between the distal end portion 4B and the receiving portion 2D. Is available.

A lid 11 is provided on the glass container of the server 5, and the lid 11 is provided with a recess 11A for receiving hot water blown from the pipe 4, and an opening 11B formed in the center of the recess 11A. , The hot water is guided to the server 5. The lid 11 has a pouring hole 11
C is provided, and the spout hole 11C and the spout 5 of the server 5 are provided.
By fitting the lid 11 so that A fits, the server 5
The hot water accumulated in the bottle can be poured smoothly into a baby bottle or the like.

FIG. 4 in which parts corresponding to those in FIG.
Shows the structure of the lower half of the water heater 1 of the embodiment, and a water outlet 2E having a valve body 12 urged by a spring and a pipe mounting portion 2F are arranged on the bottom surface of the water tank 2. The water outflow portion 2E is provided in one through hole formed in the bottom of the water tank 2. This water outlet 2E
Has a cylindrical shape, and O is provided at a predetermined position around the cylinder.
The ring 13 is attached and inserted into the cylindrical water receiving portion 6A on the case 6 side.

At the center of the water receiving portion 6A of the case 6, a pin 6B extending upward is integrally provided upright.
With E inserted, the valve body 12 is pushed up by the pin 6B, and water is guided to the water inflow pipe 4C in the case 6. A lower portion of the water receiving portion 6A is formed in a cylindrical shape, and a check ring 14 having a floating structure is disposed therein.
This prevents the boiling water from flowing back to the water tank 2 side.

The water inflow pipe 4C is connected to one end of a heating pipe 4D which is attached to a lower portion of the heater 15 as the heating section 3 arranged at a position where the server 5 is placed, and which is attached close to the heater. The other end of the heating pipe 4D is connected to a hot water outflow pipe 4E which is communicated with a pipe mounting portion 6C of the case 6.

A pipe mounting portion 2F is provided facing the other through hole formed on the bottom surface of the water tank 2. The pipe mounting portion 2F has a cylindrical shape with a thread groove formed on a peripheral side surface, and a pipe mounting member 4F having a pipe 4 inserted at an end through an O-ring 16.
Is inserted into the through hole from above via an O-ring 17.

From the lower side of the pipe mounting member 4F, a pipe fixing member 19 having a cylindrical shape with a thread groove formed on the inner peripheral surface and an O-ring 18 disposed at a predetermined position on the peripheral side surface is flat packing 20. It is mounted by being screwed through. In this way, the pipe 4 is detachably mounted in the water tank 2. The pipe fixing member 19 is inserted into the pipe receiving portion 6C of the case 6.

In this way, the water tank 2 is
8 can be easily removed by lifting it up with the handle 9A for hand lifting, for example, it is possible to easily draw milk for preparation from a tap or the like, and to easily wash the inside as necessary. it can. In particular, at this time, if the pipe 4 in the water tank 2 becomes dirty due to, for example, adhesion of water residue, the pipe 4 can be removed by removing the pipe fixing members 10 and 19, and the pipe 4 can be cleaned cleanly. The device can be used more cleanly.

Further, by disposing the O-ring in the mounting portion, when the removed water tank 2 is mounted on the case 6 again, the water tank 2 can be securely pressed without water leakage only by lightly pressing along the guide wall 21 of the case 6. 2 to case 6
, So that the usability of the user can be remarkably improved.

FIG. 5 shows another embodiment 32 of the pipe mounting portion.
F is shown. In this embodiment, a cylindrical portion 2a extending downward from another through hole of the water tank 2 is provided integrally, and a pipe 4 is inserted through the cylindrical portion 2a. And
A hot water outflow pipe 4E is fitted into the pipe 4 and the cylindrical portion 2a from below in the figure. In this case, the hot water outflow pipe 4E is preferably formed of a silicon material.

Therefore, also in this embodiment, not only can the water tank 2 and the pipe be easily cleaned, but also the structure for attaching and detaching the water tank 2 and the pipe 4 can be further simplified.

FIG. 6 shows still another embodiment of the pipe mounting portion. In this embodiment, the cylindrical portion 2a extending downward from the other through hole of the water tank 2 and the hot water outflow pipe 4E are connected to each other by a silicon tube 43 formed separately therefrom. Therefore, the attachment / detachment structure between the water tank 2 and the pipe 4 is simple, and the sealing property is improved.

FIG. 7 is an enlarged view showing another embodiment of the lid of the server 5. In this embodiment, at the center of the lid 111,
A projecting portion 110 having a mountain-shaped cross section is provided near the center of the concave portion 110C.
A is formed. A plurality of openings 110B are formed along the inner circumferential direction of the recess 110C.
As a result, the hot water dropped from above is
At A, it is guided smoothly to the bottom of the recess 110C, and falls into the server 5 through the opening 110B.

Incidentally, in the case of the water heater 1 actually,
The water tank 2 is designed to be able to hold about 700 CC, that is, about four times as much as a baby bottle, and this water is affected by the remaining amount in the water tank 2 for about 5 to 6 minutes. It is cooled to around 35 ° C at first and finally 80
It is stored in the server 5 at a temperature around ° C. In addition, when all the water in the water tank is exhausted, the temperature is maintained at a temperature of about 50 ° C., which is a suitable temperature for preparing the milk.

In order to control the temperature in this manner, the water heater 1 includes, for example, two types of temperature sensors (not shown).
Is arranged. The first temperature sensor is provided near the outlet of the heating pipe 4D disposed below the heater 15, detects the temperature of the pipe 4D that rises when all the water is sent, and turns off the power supply to the heater 15. It has been made like that. Also, the second temperature sensor is, for example, a heating pipe 4.
The heater 15 is provided in the vicinity of the outlet of D, so that the heater 15 is turned on and off at a temperature of about 50 ° C.

In the above configuration, when hot water for milk preparation is prepared using the water heater 1 of this embodiment, FIG.
As shown in FIG. 8A, for example, after transferring a predetermined amount of water to the server 5 to the water tank 2, the power switch 7A is turned on as shown in FIG. As a result, FIG.
As shown in (C), the water stored in the water tank 2 boils sequentially in a relatively short time, and is also cooled in the water tank 2 and stored in the server 5 as hot water having a suitable temperature for milk preparation.

As shown in FIG. 8 (D), the hot water stored in the server 5 at a suitable temperature can be immediately transferred to the baby bottle 8 containing the milk powder to prepare the milk. Further, when there is excess hot water for milk preparation, the server 5 may be set on the water heater 1 again. As a result, the hot water in the server 5 is kept at an appropriate temperature for the milk preparation by the heater 15, so that the optimum hot water for the milk preparation can always be obtained.

Further, according to the above-described configuration, the cooling pipe portion 4A in the water tank 2 is connected to the pipe fixing members 10 and 1.
The water heater 9 that can be cleaned more easily can be realized by removing it 9 easily.

In the embodiment described above, the water heater according to the present invention is applied to a device for boiling hot water for milk preparation, but the present invention is not limited to this, and a device for boiling hot water for dissolving powdered juice for infants and children may be used. It can be widely applied to various water heaters, such as a device for boiling hot water for putting tea such as gyokuro, and is suitable.

[0035]

As described above, in the water heater of the present invention, the temperature of the hot water dropped as the water accumulates in the storage container becomes higher as it accumulates, even if the temperature of the water is low at first. When all of the hot water has been dropped into the container, hot water having a suitable temperature for the preparation can be obtained as a whole. This makes it possible to quickly obtain hot water having an appropriate temperature for preparing the milk, and to easily detach and attach the container and the cooling pipe to draw water or wash the water.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a mechanism of a water heater according to the present invention.

FIG. 2 is a schematic side view showing an embodiment of the water heater according to the present invention.

FIG. 3 is a schematic sectional view showing the structure of the upper half of the water heater of FIG. 2;

FIG. 4 is a schematic sectional view showing the structure of the lower half of the water heater of FIG. 2;

FIG. 5 is an enlarged view showing another embodiment of the attachment / detachment structure of the cooling pipe of the water heater of FIG. 2;

FIG. 6 is an enlarged view showing still another embodiment of the attachment / detachment structure of the cooling pipe of the water heater of FIG. 2;

FIG. 7 is an enlarged view showing another embodiment of the lid of the server of the water heater of FIG. 2;

FIG. 8 is a schematic view showing a method of using the water heater of FIG. 2;

[Explanation of symbols]

 Reference Signs List 1 water heater 2 water tank 3 heating unit 4 pipe 5 server 6 case 7 operation panel 8 baby bottle 28 lid 9 handle 10, 19 pipe fixing member 12 valve body 13, 16, 18, 19 O-ring 14 check valve 15 heater 17 Flat packing

Claims (3)

(57) [Scope of request for utility model registration] 1. A water container for storing water, a pipe having one end connected to the water container and routed to a heating unit, and returned to the water container again; and And a storage container for receiving the warm water.Water in the water container is guided into the pipe, heated by the heating pipe portion of the pipe, boiled, and returned to the water container again. The pipe is cooled to a predetermined temperature in a cooling pipe portion and is stored in a storage container, and is kept at a predetermined temperature by the heating unit in the storage container, and a water outflow portion of the water container. A water heater, wherein a pipe mounting portion of the cooling pipe portion in the water container is detachably mounted to the water heater main body. 2. A heating means is disposed inside a pedestal-shaped case on which a storage container is placed, a water container is disposed on an upper portion of the pedestal-shaped case adjacent to the storage container, and a check valve is provided on the water container. Connecting the interposed heating pipes, disposing the heating pipes in the interior of the pedestal in the vicinity of the heating means, connecting the cooling pipes to the heating pipes, storing them in the water container, A water heater, wherein an end portion is arranged right above a storage container. 3. The water heater according to claim 2, wherein the cooling pipe is removably provided.