JP2002318009A - Hot water supply device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the temperature of supplied hot water from lowering due to the influence of heat radiation of piping and obtain the hot water at higher temperature. SOLUTION: The hot water supply device comprises a hot water supply unit 10, which includes a water-cleaning cartridge 12 for cleaning city water in a sink cabinet 9 and a hot water heating part 13 for heating the city water, cleaned by the water cleaning cartridge 12 and supplying hot water in a downstream side and a discharge unit 11, provided on the upper surface of the sink cabinet 9 for discharging the heated or non-heated cleaned water. The length of the piping 29, for connecting the hot water supply unit 10 to the discharge unit 11, can be adjusted to be long or short. The length of the piping is minimized as required, so that the heat radiation from the surface of the piping 29 or remaining water in the piping can be reduced as much as possible and that hot water of high temperature can be obtained.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a hot water supply apparatus for supplying hot drinking and cooking hot water to be installed in a cabinet of a cabinet having a water receiving portion (hereinafter, the description of the present invention is referred to as a sink cabinet).

[0002]

2. Description of the Related Art FIG. FIG. 3 is a configuration diagram of a hot water supply device including a sink cabinet, which is called a small electric water heater with a water purification function. In FIG. 3, 1 is a water pipe for sending tap water, 2 is a water storage container, 3
Heats the water stored by the heater. The water supply is branched by a branch fitting 4 attached to the water pipe 1, and a water stop valve 5
Is opened, water is sent to the water storage container 2. At this time, the hot water in the water storage container 2 is pushed out by the tap water, and the hot water is discharged from the tap hole 6. A pipe 7 connecting the water storage container 2 and the tap 6
A water purification section 8 is provided in the middle of the process, so that purified hot water can be discharged.

[0003]

However, in the above-mentioned conventional structure, the temperature of the hot water drops due to heat radiation from the surface of the pipe 7, or the temperature of the hot water immediately after the next hot water discharge due to residual water in the pipe 7 after the hot water is discharged. It had the problem of being very low.

An object of the present invention is to solve the above-mentioned conventional problems, and an object of the present invention is to provide a hot water supply apparatus capable of preventing a decrease in temperature of discharged hot water and obtaining high-temperature hot water.

[0005]

In order to solve the above-mentioned conventional problems, a hot water supply apparatus of the present invention comprises a water purifying means for purifying tap water in a sink cabinet, and a tap water downstream of the water purifying means by the water purifying means. A hot water supply unit having a water heater for heating and discharging water and provided in a sink cabinet housing; and In the construction of the pipe connecting the unit and the discharge unit, the length of the pipe was set to a necessary minimum. With this configuration, heat radiation from the pipe surface and residual water in the pipe can be reduced as much as possible, so that hot water with a higher temperature can be obtained.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 is a hot water supply unit having a water purifying means for purifying tap water, and a water heater for heating the tap water purified by the water purifying means to supply hot water.
A hot water supply apparatus configured to include a discharge unit that discharges the heated or unheated purified water and that is provided on an upper surface of the sink cabinet, and a pipe that can adjust a length that connects the hot water supply unit and the discharge unit. To do
By minimizing the length of the pipe and providing water purification means upstream of the hot water supply unit, heat radiation from the pipe surface and residual water in the pipe can be reduced as much as possible to obtain hotter hot water. it can.

According to a second aspect of the present invention, in the configuration of the first aspect, an opening through which the pipe is passed is provided on the top surface of the sink cabinet, and the discharge unit is provided with a connecting portion detachable from the pipe. Since the piping is connected to the hot water supply unit and can be connected to the discharge unit above the sink cabinet, the work can be performed in a comfortable posture and the length can be easily adjusted.

[0008] The invention described in claim 3 is claim 1 or 2.
In the configuration described above, the discharge unit includes a discharge unit mounting base provided on the top surface of the sink cabinet for detachably fixing the discharge unit, and an opening provided on the discharge unit mounting base and passing a pipe, and the discharge unit includes the pipe In addition to being able to connect to the discharge unit above the sink cabinet, the piping length between the discharge unit and the hot water supply unit can be minimized.
Since the connection portion is not exposed to the outside, the appearance can be beautiful.

According to a fourth aspect of the present invention, in the configuration according to any one of the first to third aspects, since the pipe is a cuttable pipe, the length can be easily and freely adjusted.

According to a fifth aspect of the present invention, in the configuration according to the fourth aspect, the cutting range of the pipe is displayed, so that erroneous work can be prevented, the work can be performed smoothly, and the length of the pipe can be adjusted more optimally. it can.

The invention according to claim 6 is the invention according to claim 4 or 5.
In the configuration described above, the pipe is made of a resin or rubber material, so that it can be cut with a simple tool such as scissors, nippers, cutters, etc., so that the work becomes easy and the length of the pipe can be easily adjusted.

According to a seventh aspect of the present invention, in the configuration according to any one of the first to sixth aspects, the hot water supply device includes at least two non-heated water and heated water that are separately passed. The length of the piping through which hot water is passed can be adjusted even if there are multiple pipings. Therefore, hot water of higher temperature can be obtained. Further, the length adjustment work itself can be reduced.

According to an eighth aspect of the present invention, in the configuration according to any one of the first to seventh aspects, the hot water supply device includes at least two non-heated water and heated water that are separately passed. The piping through which unheated purified water is passed is connected to the discharge unit in advance, so that incorrect connection of the piping can be prevented, and the construction work becomes smoother.
The length of the pipe can be adjusted more optimally.

[0014]

(Embodiment 1) Hereinafter, Embodiment 1 of the present invention will be described with reference to the drawings.

FIG. 1 is a front sectional view when a hot water supply apparatus according to Embodiment 1 of the present invention is used in a sink cabinet. The hot water supply device installed in the sink cabinet 9 includes a hot water supply unit 10 housed in the sink cabinet 9 and a discharge unit 11 provided on the upper surface of the sink cabinet 9.
Consists of The hot water supply unit 10 includes a water purification cartridge 12 as a water purification means and a water heater 13. The water heater 13 is mainly composed of a main body 14 forming an outer shell of the water heater 13, a water storage container 15 for storing water, a heater 16 for heating water, and a water level sensor 1 for detecting the amount of water.
7 and the like.

Tap water introduced by opening a water supply valve 18 branched from the water pipe 1 passes through a raw water path 19 and reaches a water purification cartridge 12 which is a water purification means for purifying the tap water. The water purified by the water purification cartridge 12 is introduced into the main body 14 of the water heater 13 and supplied to the water supply path 2.
Water is discharged from a water supply port 21 opened above the water storage container 15 through 0 and stored in the water storage container 15. The stored water is heated by the heater 16 to become hot water.

Here, the water supply port 21 and the water purification cartridge 1
A switching valve 22 is provided on a water channel connecting
By switching, the purified water can be discharged from the water purification port 23 provided outside the main body 14. On the other hand, a water intake 24 for taking out hot water in the water storage container 15 is provided near the bottom surface of the water storage container 15, and the hot water taken out from the water intake 24 is supplied to the pump 2.
5 allows the liquid to be discharged from the tap 6 outside the main body 14. Both the water purification port 23 and the tap hole 6 are provided in the discharge unit 11 installed corresponding to the sink 26 installed on the upper surface of the sink cabinet 9. The tap 6 is open toward the sink 26, so that the tap water always enters the inside of the sink 26. Reference numeral 27 denotes a steam port for releasing steam generated in the water storage container 15.

Reference numeral 28 denotes a clean water pipe through which purified water passes, 29 denotes a hot water outlet pipe through which hot water passes, and 30 denotes a steam pipe through which steam passes. Reference numeral 31 denotes a discharge unit mounting base fixed to the upper surface of the sink cabinet 9, and the discharge unit 11 is fixed to the discharge unit mounting base 31.
Further, a water purification pipe 28, a hot water pipe 29, and a steam pipe 30
Is connected to a connecting portion 41 provided in the discharge unit 11 through an opening 40 provided in the discharge unit mounting base 31. Therefore, the pipes 28 to 30 are connected to the hot water supply unit 1.
After the connection with the discharge unit 11, the connection with the discharge unit 11 can be performed. Thereafter, the piping work is completed by fixing the discharge unit 11 to the discharge unit mounting base 31.

The operation of water heating and water supply will now be described. Hot water heated in the water storage container 15, for example, 90 to 95
Hot water heated to ° C. is discharged from tap hole 6 by pump 25, and the water level in water storage container 15 decreases. This is detected by a water level sensor 17 provided in the water storage container 15, and based on the result, the switching valve 22 is opened to the water supply 21 side and the water supply valve 18 is opened to start water supply. The water discharged from the water supply port 21 is first temporarily stored in a water supply tray 32 provided in the water storage container 15. The stored water is guided to the vicinity of the bottom of the water storage container 15 by a drip pipe 33 provided on the bottom surface of the water supply tray 32. The introduced water does not mix with the existing hot water in the water storage container 15 due to a difference in specific gravity, and stays near the bottom of the water storage container 15 in a separated state. The temperature of this water is measured by a temperature sensor 3
4 is detected and heated by the heater until it becomes hot water. At this time, the water intake port 24 is installed at a position corresponding to the amount of water supplied to the water storage container 15 at one time, that is, above the upper limit position of water staying near the bottom of the water storage container 15,
Only hot water is taken from the water intake 24 at any time.

The water in the water storage container 15 is heated in a space open to the atmosphere, and is usually controlled so that the maximum temperature does not exceed 95 ° C. Because the steam sensor 35 detects this and controls the heater 16, the pressure in the water storage container 15 hardly increases, and hot water does not blow out from the tap hole 6.
Reference numeral 36 denotes a general faucet for discharging tap water.
Is a drain pipe.

When the hot water supply apparatus having the above-described configuration is used, particularly when the tapping pipe 29 is long, heat radiation from the pipe surface increases, and the tapping temperature decreases. Similarly, if the tapping pipe 29 is long and a downward sag occurs in the middle of the tapping pipe 29, residual water after tapping is generated in the sagging portion, and low temperature occurs in the initial portion at the next tapping. Hot water comes out. The present embodiment is characterized in that a decrease in hot water temperature due to such causes is prevented, and hot water is discharged. That is, the configuration is such that the length of the tapping pipe 29 can be minimized.

In FIG. 1, the discharge unit 11 and the discharge unit mounting base 31 are configured to be detachable. Hot water piping 2
9, the discharge pipe 11 is first connected to the hot water supply unit 10 with the discharge unit 11 and the discharge unit mounting base 31 separated from each other.
After being pulled out above the sink cabinet 9 through the opening 40 of the sink cabinet 9, cutting is performed with the length of the tapping pipe 29 in the sink cabinet 9 being kept to a minimum length. After the cutting, the tapping pipe 29 is connected to the predetermined connecting portion 4 provided in the discharge unit 11.
Connect to 1. After this connection, the discharge unit 11 is fixed to the discharge unit mounting base 31. By performing the piping work in this manner, the tapping pipe 29 can be made the minimum length, and hot water can be discharged. here,
The length adjustment of the hot water supply pipe 29 can be performed easily because it can be performed outside the sink cabinet 9 instead of working inside the sink cabinet 9, and the pipe can be accurately adjusted. If the tapping pipe 29 is made of a resin material or a rubber material so that it can be cut with a simple tool, the length can be adjusted more easily, and the length can be easily adjusted to an arbitrary length.

By adjusting the length of the steam pipe 30 with the same configuration as that of the hot water pipe 29, slack does not occur in the middle of the pipe, and no accumulated water such as dew condensation water is generated inside. Therefore, it is possible to prevent the propagation of various germs and the like, and to improve the hygiene.

The length of the water purification pipe 28 is adjusted in the same configuration as that of the hot water supply pipe 29, so that the amount of residual water in the pipe is reduced. Can be reduced. However, if there is no need to worry about the amount of water to be discarded, it is not necessary to adjust the length. Therefore, if the water purification pipe 28 is connected to the discharge unit 11 in advance, other pipes can be connected to the discharge unit 11. Can be prevented from being erroneously connected.

The connecting portion 41 can be provided on the external portion of the discharge unit 11. In this case, the opening 40 is not provided on the discharge unit mounting base 31, but the discharge unit mounting base 31 is provided on the top surface of the sink cabinet 9. It is preferable to provide it separately from the hole for fixing. By doing so, after the discharge unit 11 is fixed to the discharge unit mounting base 31, the connection work between the pipes 28 to 30 and the discharge unit 11 can be performed. That is, restrictions on the construction procedure are reduced, and the work is facilitated. However, if the connecting portion 41 is provided on the external portion of the discharge unit 11, the pipes 28 to 30 will be exposed outside the sink cabinet 9, so that the connecting portion 41 is included in the discharge unit 11 as shown in FIG. 1. The more aesthetic appearance is preferable.

FIG. 3 is an explanatory view of a pipe in the first embodiment of the present invention, and shows an external appearance of any one of a water purification pipe 28, a hot water supply pipe 29, and a steam pipe 30 of the hot water supply apparatus. A cutting range 39 for adjusting the length is displayed on the pipe 38. The display method may be any display method such as coloring, printing, pasting of display material, and packaging. By doing so, it is possible to urge the operator to adjust the length of the pipe at the time of piping work, and at the same time, it is possible to prevent erroneous work such as cutting an unnecessary portion.

It should be noted that the work of adjusting the length of the pipe may be naturally performed inside the sink cabinet. In this case, the pipe is connected to the discharge unit 11 in advance, and the discharge unit 11 and the discharge unit mounting base 31 are fixed.
If the length of the piping connected to the hot water supply unit 10 is adjusted using a method such as cutting, the length of the piping can be minimized.

[0028]

As described above, according to the present invention, the water purification means is provided at the most upstream side, and the length of the pipe can be minimized. And connection work of the discharge unit is facilitated.

[Brief description of the drawings]

FIG. 1 is a front sectional view when a hot water supply device according to a first embodiment of the present invention is used for a sink cabinet;

FIG. 2 is an explanatory view showing the piping of the hot water supply apparatus according to the first embodiment of the present invention.

FIG. 3 is a configuration diagram of a hot water supply device according to a conventional technique.

[Explanation of symbols]

 Reference Signs List 9 sink cabinet 10 hot water supply unit 11 discharge unit 12 water purification cartridge (water purification means) 13 water heater 28 water purification pipe (pipe) 29 hot water supply pipe (pipe) 31 discharge unit mounting base 38 pipe 39 cutting range 40 opening 41 connection part

Continued on the front page (72) Inventor Masahiro Yokono 1006 Kazuma Kadoma, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. Reference) 4D024 AA02 BA02 BB01 BC01 CA13 DB06

Claims (8)

[Claims] 1. A hot water supply unit having a water purifying means for purifying tap water in a cabinet having a water receiving section, and a water heater for heating tap water purified by said water purifying means and discharging hot water on a downstream side thereof. Alternatively, a hot water supply apparatus configured to include a discharge unit provided on an upper surface of a cabinet that discharges the unheated purified water and has the water receiving unit, and a pipe that can adjust a length for connecting the hot water supply unit and the discharge unit. . 2. The hot water supply apparatus according to claim 1, wherein an opening through which the pipe is passed is provided on the top surface of the cabinet having the water receiving section, and the discharge unit is provided with a connection portion detachably connected to the pipe. 3. A discharge unit mounting base provided on a cabinet top surface having a water receiving portion for detachably fixing a discharge unit, and an opening provided on the discharge unit mounting base and passing a pipe, The hot water supply apparatus according to claim 1, wherein the discharge unit includes a connection portion detachable from the pipe. 4. The hot water supply apparatus according to claim 1, wherein the pipe is formed of a cuttable pipe. 5. The hot water supply apparatus according to claim 4, wherein the piping has a configuration in which a cutting range is displayed. 6. The hot water supply apparatus according to claim 4, wherein the pipe is made of a resin or a rubber material. 7. The hot water supply device includes at least unheated purified water;
7. The apparatus according to claim 1, further comprising two or more pipes for separately passing the heated purified water, wherein at least a pipe for passing the heated purified water can be adjusted in length. A hot water supply device according to item 1. 8. The hot water supply device includes at least non-heated purified water,
8. A structure according to claim 1, comprising two or more pipes for separately passing heated purified water, and a pipe for passing unheated purified water to the discharge unit in advance. A hot water supply device according to item 1.