JP3033427B2 - Warm water device for toilet seat - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a warm water flush toilet seat for cleaning a local part of a human body with warm water, and more particularly to a warm water flush toilet device for supplying warm water.

[0002]

2. Description of the Related Art Conventionally, as this kind of hot water apparatus, there is one as shown in FIG.
No. 0).

In FIG. 11, reference numeral 1 denotes a tank body,
2 is a heating means for heating the washing water in the tank. Reference numeral 3 denotes a thermistor for detecting the temperature of the washing water in the tank, and reference numeral 4 denotes a water amount detecting means in the tank for preventing the tank from being cooked empty. The control device 5 includes the thermistor 3 and the water amount detecting means 4
The energization of the heating means 2 based on the detection signal from
The hot water in the tank body 1 is boiled to a predetermined temperature. Reference numeral 6 denotes a cylindrical inflow pipe for allowing the water supplied from the water supply pipe 7 to flow into the bottom of the tank body 1 and is open substantially horizontally to the bottom of the tank and reduces the flow rate of the inflow water at the open end. This is a net-shaped resistance portion 8 to be formed. By providing a resistance portion 8 at the end of the inflow pipe 6 on the outlet side, the flow rate of the inflow water is reduced, the stirring of the hot water boiled in the tank and the inflow water is reduced, and a hot water layer formed on the upper side is formed. From the outlet 9 provided at the upper part of the tank.

[0004]

However, it is difficult to provide the inflow pipe in contact with the bottom of the tank in the structure of the conventional water heater for sanitary washing toilet seat, and it has not been possible to sufficiently utilize the hot water to the bottom of the tank. .

[0005] Further, there is a problem that the structure is such that the inflow water flows in both directions by the inflow pipe, and that a rectifier must be provided at the end, which makes processing of the inflow pipe difficult and costly.

Further, in order to reduce the inflow speed, the rectifying portion of the inflow pipe becomes large, and when assembling the tank,
This reduced workability.

[0007] The present invention solves the above-mentioned problems, and provides a hot-water device capable of efficiently using hot water in a tank and prolonging a tapping time by providing a resistance portion while colliding inflow water with a tank bottom surface. The primary purpose is to

Further, by reducing the flow velocity of the inflow water into the tank and setting the flow direction of the inflow water only in the longitudinal direction, the winding of the hot water by the inflow water near the tank wall on the longitudinal side of the rectangular tank. It is a second object of the present invention to provide a hot water device that can reduce the amount of hot water and extend the time of tapping at low cost.

Further, by setting the height of the straightening plate in each longitudinal direction at a predetermined ratio in accordance with the dimensional ratio from the inflow pipe to the tank wall in the longitudinal direction, the degree of freedom of the installation position of the inflow pipe is increased. A third object is to provide a hot water system that can be improved.

[0010] In addition, by providing a resistance portion in the tank bottom and a rectangular inflow passage formed in the longitudinal direction from the flow straightening plate, the effect of rectifying the inflow water is high, and the hot water supply device can extend the tapping time with a simple configuration. The fourth objective is to supply

It is a fifth object of the present invention to provide a hot water device having high assemblability while providing a uniform flow of hot water in a tank by providing a flow straightening plate together with a heating means.

[0012]

Means for Solving the Problems To achieve the first object, a hot water apparatus according to the present invention is provided with a hot water storage tank, heating means for heating water in the hot water storage tank, and an upper part of the hot water storage tank. An inlet, an inflow pipe that penetrates the inside of the hot water storage tank from the inflow to allow water to flow into the bottom of the hot water storage tank, an outlet that discharges hot water from the top of the hot water storage tank, and is joined to the bottom side of the inflow pipe and provided substantially horizontally. Rectifier plate, and is aligned with the tank bottom.
A resistance portion is provided in an inflow passage formed from a flow plate .

[0013] To achieve the second object, a hot water device of the present invention comprises a hot water storage tank having a rectangular horizontal section and having a longitudinal direction and a short direction, and a heating means for heating water in the hot water storage tank. An inlet provided at the top of the hot water storage tank, an inflow pipe through which the water flows into the bottom of the hot water storage tank, an outlet for discharging hot water from the top of the hot water storage tank, and a bottom of the inflow pipe. There is a flow straightening plate joined to the side and provided substantially horizontally, and the flow straightening plate is joined to the tank side wall only in the short direction.

According to a third aspect of the present invention, there is provided a water heater according to the present invention, wherein when the installation position of the inflow pipe is not at the center in the longitudinal direction, the hot water apparatus is adapted to the dimension ratio from the inflow pipe to the tank side wall in each longitudinal direction. The height of the current plate in each longitudinal direction is set at a predetermined ratio.

Further, in order to achieve a fourth object, a water heater according to the present invention is provided with a resistance portion provided in a tank bottom portion and a rectangular inflow passage formed in a longitudinal direction from a current plate.

In order to achieve a fifth object, a hot water apparatus according to the present invention comprises a current plate together with a heating means.

[0017]

With the configuration described above, the hot water apparatus according to the first object of the present invention reduces the kinetic energy of the inflow water by colliding the inflow water with the tank bottom,
A uniform flow velocity in each direction with the flow straightening plate and the resistance
And, since the incoming water and to prevent the mixing of hot water caused by flow disturbance occurring in the inlet pipe and in the vicinity of the tank wall, thereby the extension of the tapping time.

[0018] A hot water device according to a second object of the present invention comprises:
By rectifying the inflow water flowing from the inflow pipe to the short width of the tank by the flow straightening plate and flowing in the longitudinal direction of the tank, the flow velocity of the inflow water is reduced, and the turbulence of the flow occurring on the tank wall on the long side is reduced. Since the mixing of the inflow water and the warm water, which is the cause, is prevented, the extension of the tapping time is realized with a simple configuration.

Further, in the water heater according to the third object of the present invention, the height of the current plate in each longitudinal direction is set at a predetermined ratio according to the dimensional ratio from the inflow pipe to the tank wall in the longitudinal direction. By doing so, the flow velocity of the inflow water in each longitudinal direction is adjusted, so that it is possible to extend the tapping time and improve the degree of freedom of the installation position of the inflow pipe.

Further, a hot water apparatus according to a fourth object of the present invention is characterized in that a resistance portion is provided in a tank bottom portion and a rectangular inflow passage formed in a longitudinal direction from a rectifying plate, so that a short side of the tank of the inflow water is provided. Since the rectifying effect on the width is increased and the kinetic energy of the inflow water is absorbed, mixing of the inflow water and the hot water on the tank wall surface can be prevented, and the extension of the outflow time can be realized with a simple configuration.

[0021] A hot water device according to a fifth object of the present invention comprises:
By providing the current plate and the heating means together, heat can be transmitted to the hot water near the current plate, and the hot water in the tank can be quickly boiled to a uniform temperature.
Further, since the current plate and the heating means can be attached to the tank at one time, the tank assembling process is simplified.

[0022]

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

FIG. 1 is a configuration diagram of a warm water flush toilet seat according to a first embodiment of the present invention.
A water stop valve 10 that opens and closes a flow path provided in the water supply passage 9;
The water reaches a hot water storage tank 12 via a pump 11 which is a water supply means and a flow rate adjusting means. The hot water stored in the hot water storage tank 12 at a predetermined temperature is pushed out by the supply water, and is ejected from the washing nozzle 13 to a human body part.

FIG. 2 is a vertical sectional view of the hot water storage tank 12. As shown in FIG. The water supply passage 9 is an inlet 1 provided on the upper surface of the tank.
4 is connected. An inflow pipe 15 for flowing inflow water into the tank bottom is connected to the inflow port 14.
5 has a tapered shape in which the opening area on the tank bottom side is widened. A current plate 16 is provided at the end of the inflow pipe 15 on the tank bottom side.
Is installed horizontally. As shown in FIG. 3, a protrusion 17a, which is a resistance portion, is provided at the bottom of the tank within the range of the horizontal plane where the current plate 16 is provided, so that the inflow water flowing in from the inflow pipe 15 has a uniform flow velocity in each direction. I am trying to become.

If the projection 17a is formed as the same member as the bottom of the hot water storage tank 12, the number of parts can be reduced.

When the washing water in the hot water storage tank 12 is full, the float switch 18 having a floating portion 18a mounted on the upper part of the hot water storage tank is operated, and the heater 19 as a heating means provided at the lower part of the hot water storage tank 12 is operated. Can be energized. The boiling temperature of the hot water in the hot water storage tank 12 is set by temperature setting means (not shown) provided in the operation unit 20 of the hot water flush toilet seat. The control unit 21 detects the water temperature in the tank by the temperature detection unit 22 and performs feedback control of the heater 19 so as to boil the washing water to the set temperature and keep the temperature. The control unit 21 controls all operations of the hot water flush toilet seat.

Reference numeral 23 denotes an outlet provided in the upper part of the tank, which communicates with the washing nozzle 13.

The operation and operation of this embodiment in the above configuration will be described. The water in the hot water storage tank 12 is always heated to a constant temperature by the control unit 21 in advance. When the user selects to start washing after stool, the water stop valve 10 is opened, and the pump 11 operates to supply the selected amount of washing water, and the warm water in the tank is supplied from the washing nozzle 13 to the human body. Spouted towards. At this time, the unheated cleaning water is supplied from the inflow pipe 15 into the hot water storage tank 12 through the inflow port 14. The washing water that has flowed in such a way as to collide with the bottom of the tank by the inflow pipe 15 tries to wind up near the inflow pipe, but is forced to flow in each horizontal direction by the flow straightening plate 16. Although the flow rate of the inflow water in each horizontal direction is not uniform, the protrusion 17a becomes a resistance, and
Within each horizontal direction, the flow is rectified into a uniform flow, and kinetic energy is lost. Therefore, it is possible to reduce the entrapment of hot water due to the inflow water generated near the tank wall surface, thereby suppressing the mixing of the inflow water and the hot water in the tank, which reduces the tapping time (effective utilization rate of the hot water in the hot water storage tank). In addition, since the turbulence in the flow near the tank wall surface is reduced, a stable water layer is formed from the lower side in the hot water storage tank 12, and it is possible to push up the hot water layer at the upper part.

The hot water pushed out by the inflow water flows out of the outlet 23, is supplied to the washing nozzle 13, and is ejected to the human body part.

According to the structure of the present embodiment, a horizontal straightening plate 16 is provided at an end of the inflow pipe 15 on the bottom side of the tank to prevent hot water from being trapped by inflow water near the inflow pipe.
Protrusions 17a are arranged in the horizontal plane area where the current plate 16 is provided, and the flow rate of inflow water in each horizontal direction is reduced and made uniform, thereby preventing hot water from being trapped near the tank wall surface. In addition, mixing of inflow water and hot water can be reduced, and the tapping time can be extended with a simple configuration regardless of the tank shape.

If the projection 17a is formed as the same member as the bottom of the hot water storage tank 12, the number of components is reduced, the configuration of the hot water storage tank 12 can be simplified, and the cost can be reduced.

Further, since the projections 17a function as a filter when foreign matter larger than the installation interval flows into the tank, the foreign matter does not flow into the cleaning nozzle 13 and clogging in the cleaning nozzle 13 can be prevented. .

FIG. 4 shows a second embodiment of the present invention. In this embodiment, a net-like or porous plate 17b is provided as a resistance portion instead of the projection 17a. Other configurations are the same as those of the first embodiment, and the same reference numerals are given and the detailed description is omitted.

According to the structure of this embodiment, the same effects as those of the first embodiment can be obtained, and the mesh or porous plate 17b can be used even when the design of the rectifying portion such as the flow rate of the inflow water is changed.
Only the aperture ratio needs to be changed, and the time for development and design changes can be reduced.

By setting the height of the flow straightening plate from the tank bottom to the diameter of the tank outlet or the washing nozzle,
Without providing the resistance portions 17a and 17b, clogging in a water channel can be reduced, and the tapping time can be extended.

FIGS. 5 and 6 show a third embodiment of the present invention. In the present embodiment, a current plate 16 is provided in a rectangular hot water storage tank 12 having a longitudinal direction and a lateral direction in a horizontal section, and only different points from the first embodiment will be described.

The current plate 16 is provided with a heater 19 as a heating means.
And is fixed to the fixing portion 24 of the tank wall on the longitudinal side of the tank by screws 25, so as to be joined only to the tank wall on the longitudinal side.

As shown in FIG. 7, a projection 17 for reducing and uniformizing the flow velocity in the longitudinal direction within the horizontal plane area of the current plate 16 is provided.
a is provided.

Next, the operation of this embodiment with the above configuration will be described. When the user selects to start washing, unheated washing water is supplied from the inflow pipe 15 into the hot water storage tank 12 through the inflow port 14. The washing water that has flowed in such a way as to collide with the bottom of the tank by the inflow pipe 15 tends to wind up near the inflow pipe, but is forced to flow in each horizontal direction by the current plate 16. Further, since the current plate 16 is provided so as to be joined to the tank wall on the longitudinal side, the inflow water diffused in the lateral direction does not entrain hot water near the tank wall on the longitudinal side. Forced by the flow. At this time,
Although the flow velocity in each longitudinal direction is non-uniform, the protrusion 17 becomes a resistance, and the washing water is rectified in the protrusion 17 into a uniform flow in each longitudinal direction, and kinetic energy is lost. Therefore, the mixing of the inflow water and the hot water in the tank, which reduces the hot water supply time (effective utilization rate of the hot water in the hot water storage tank), can be reduced because the entrainment of the hot water by the inflow water occurring near the short side tank wall surface can be reduced. Suppress. In addition, since the turbulence of the flow on the tank wall surface is reduced, a stable water layer is formed from the lower side in the hot water storage tank 12, and it is possible to push up the hot water layer at the upper part.

In the hot water device of this embodiment, the protrusion 1
Even when the 7 is not provided, the height of the current plate 16 is optimized according to the shape of the tank, so that mixing of the inflow water and the warm water in the tank can be suppressed.

According to the structure of the present embodiment, the flow straightening plate 16 is provided at the end of the inflow pipe 15 on the tank bottom side and is connected only to the tank wall on the long side in the horizontal direction.
6 is provided with the projections 17a for reducing and uniforming the flow velocity in the longitudinal direction within the range of the horizontal plane 6, so that the tapping time can be extended even in the rectangular hot water storage tank 12.

Further, since the current plate 16 is screwed to the fixed portion provided on the longitudinal side of the tank, the rectangular hot water storage tank 1 is fixed.
In 2, the strength in the lateral direction can be improved.

Further, since the projection 17a is formed as the same member as the bottom of the hot water storage tank 12, the number of parts is reduced, the structure can be simplified, and the cost can be reduced.

FIG. 8 shows a fourth embodiment of the present invention. In this embodiment, a net-like or porous plate 17b is provided as a resistance portion instead of the projection 17a. Other configurations are the same as those of the third embodiment, and the same reference numerals are given and detailed description is omitted.

According to the structure of this embodiment, the same effects as those of the third embodiment can be obtained, and even when the design of the rectifying portion is changed by changing the flow rate of the inflow water, the opening ratio of only the net-like or porous plate 17b is changed. Need only be changed, and the time for development and design changes can be reduced.

By setting the height of the current plate from the bottom of the tank to be equal to or less than the diameter of the tank outlet and the cleaning nozzle,
Without providing the resistance portions 17a and 17b, clogging in a water channel can be reduced, and the tapping time can be extended.

FIG. 9 shows a fifth embodiment of the present invention. In the present embodiment, the rectifying plate 16 is provided together with the heater 19, and the other configuration is the same as that of the third embodiment, and the same reference numerals are given and the detailed description is omitted.

If the rectifying plate 16 is provided together with the heater 19,
The heat conductivity through the current plate is improved, and the hot water at the lower portion of the current plate can be quickly boiled, so that the boiling water can be heated in a short time and the tapping time can be extended. In addition, since the current plate 16 and the heater 19 can be attached at the same time when assembling the hot water storage tank 12, the assembling process of the hot water storage tank 12 can be simplified.

FIG. 10 shows a sixth embodiment. In the hot water apparatus of the present embodiment, the inflow port 14 and the inflow pipe 15 are provided at positions that are not substantially at the center in the longitudinal direction in the rectangular hot water storage tank 12 having the longitudinal direction and the transverse direction in the horizontal cross section. Only differences from the third embodiment will be described.

Due to the installation positions of the float switch 18, the heater 19, the outlet 23, and the like, and the design of the main body, the inlet 14 and the inlet pipe 15 are not substantially at the center in the longitudinal direction. If the longer distance is L and the shorter distance is l),
The height of the current plate 16 in the longitudinal direction is set to H (L side in the longitudinal direction) and h (l side in the longitudinal direction) at a predetermined ratio in accordance with the dimensional ratio between L and l. .

Next, the operation of this embodiment with the above configuration will be described. The washing water that has flowed in such a way as to collide with the bottom of the tank by the inflow pipe 15 tries to wind up near the inflow pipe, but is forced to flow in each horizontal direction by the flow straightening plate 16. In addition, since the current plate 16 is provided so as to be joined to the longitudinal tank wall, the inflow water diffused in the lateral direction does not generate hot water entrainment near the longitudinal tank wall, and the water flows in the longitudinal direction. Forced by the flow. The opening area of the rectangular inflow path in the longitudinal direction formed by the tank bottom and the flow straightening plate 16 is substantially in the ratio of H: h, and the inflow water flows in each longitudinal direction at a flow ratio according to the opening area ratio. Distributed in the direction. Therefore, entrapment of warm water in the vicinity of the tank wall on the l side where the distance to the tank wall surface is short can be reduced. At this time, the inflow water on the L side, which has a long distance to the tank wall surface, has a long reaching distance to the wall surface, so that the flow velocity is attenuated. Therefore, entrainment of warm water near the L side tank wall surface can be reduced.

In the hot water system according to the configuration of the present embodiment, the height of each straightening plate 16 in the longitudinal direction is set to a predetermined value according to the dimensional ratio of the installation positions of the inflow port 14 and the inflow pipe 15 from the tank wall on each longitudinal side. Since the ratio is changed by the ratio, it is possible to improve the degree of freedom of the installation position of the inflow pipe while extending the tapping time with a simple configuration.

When l = 0, that is, when the inflow pipe 15 is in contact with the tank wall, the rectifying plate 16 may be provided on only one side.

[0054]

As described above in detail, the hot water device for a hot water flush toilet seat according to the present invention has an inflow pipe for flowing water into the bottom of a hot water storage tank, and a substantially horizontal direction joining to the tank bottom end of the inflow pipe. Since the current plate is provided, the following effects are obtained.

(1) The inflow water is caused to collide with the bottom surface of the tank, and the kinetic energy of the inflow water is reduced by providing a resistance portion, and the flow velocity of diffusion into the tank is reduced. As a result, mixing of the inflow water and the warm water is prevented, so that the tapping time can be extended.

(2) In a hot water storage tank having a rectangular horizontal cross section and having a longitudinal direction and a lateral direction, the flow straightening plate is joined only to the tank side wall in the longitudinal direction, so that the inflow water flowing from the inflow pipe is prevented. By rectifying the flow to the short width of the tank by the flow straightening plate and flowing in the longitudinal direction of the tank, the flow velocity of the inflow water is reduced, and the inflow water and hot water caused by the turbulence of the flow that occurs on the short side of the tank wall Therefore, the mixing time can be prevented, and the tapping time can be extended with a simple configuration.

(3) By setting the height of the current plate in each longitudinal direction at a predetermined ratio in accordance with the dimensional ratio from the inflow pipe to the tank wall in the longitudinal direction, the inflow water in each longitudinal direction is set. Since the flow velocity is adjusted, the degree of freedom of the installation position of the inflow pipe can be improved with the extension of the tapping time.

(4) By providing a resistance portion in the tank bottom portion and a rectangular inflow passage formed in the longitudinal direction from the straightening plate, the effect of straightening the inflow of the inflow water into the short side of the tank is increased, and the inflow water is increased. Since it absorbs kinetic energy, mixing of inflow water and warm water on the tank wall surface can be prevented, and further extension of tapping time can be realized.

(5) By providing the current plate and the heating means together, heat can be transmitted to the hot water near the current plate and the hot water in the tank can be quickly boiled to a uniform temperature. . Further, since the current plate and the heating means can be attached to the tank at one time, the tank assembling process is simplified.

[Brief description of the drawings]

FIG. 1 is a configuration diagram of a warm water flush toilet seat according to a first embodiment of the present invention.

FIG. 2 is a vertical sectional view of a hot water storage tank of the same flush toilet seat.

FIG. 3 is a horizontal sectional view of the hot water storage tank.

FIG. 4 is a horizontal sectional view of a hot water storage tank according to a second embodiment of the present invention.

FIG. 5 is a longitudinal sectional view of a hot water storage tank according to a third embodiment of the present invention.

FIG. 6 is a transverse sectional view of the hot water storage tank.

FIG. 7 is a horizontal sectional view of the hot water storage tank.

FIG. 8 is a horizontal sectional view of a hot water storage tank according to a fourth embodiment of the present invention.

FIG. 9 is a transverse sectional view of a hot water storage tank according to a fifth embodiment of the present invention.

FIG. 10 is a longitudinal sectional view of a hot water storage tank according to a sixth embodiment of the present invention.

FIG. 11 is a sectional view of a hot water storage tank of a conventional hot water flush toilet seat.

[Explanation of symbols]

 12 Hot water storage tank 14 Inflow port 15 Inflow pipe 16 Rectifier plate 19 Heater (heating means) 23 Outflow port

──────────────────────────────────────────────────の Continued on the front page (72) Inventor Motoko Toshima 1006 Kadoma Kadoma, Osaka Prefecture Inside Matsushita Electric Industrial Co., Ltd. (56) References JP-A 60-53874 (JP, U) JP-A 63-136070 (JP, U) JP-A 64-681 (JP, U) (58) Fields surveyed (Int. Cl. ⁷ , DB name) E03D 9/00-9/16

Claims (5)

(57) [Claims] 1. A hot water storage tank, heating means for heating water in the hot water storage tank, an inflow port provided at an upper portion of the hot water storage tank, and a bottom portion of the hot water storage tank penetrating through the hot water storage tank from the inflow port. an inlet tube for flowing water, the hot water storage and flow outlet top performing hot water from the tank, and bonded to the bottom side of the inlet pipe, have a substantially disposed horizontally current plate capacitor
A resistance section is provided in the inflow passage formed from the bottom of the link and the current plate.
Water heater of warm water washing toilet seat. 2. A hot water storage tank having a rectangular horizontal section and having a longitudinal direction and a short direction, heating means for heating water in the hot water storage tank, and an inflow port provided at an upper portion of the hot water storage tank. An inflow pipe through which water flows from the inflow port into the bottom of the hot water storage tank to flow into the bottom of the hot water storage tank; an outflow port for discharging hot water from the top of the hot water storage tank; A rectifying plate provided in the
The hot water device for a hot water flush toilet seat, wherein the current plate is joined to the tank side wall only in the short direction. 3. When the installation position of the inflow pipe is not at the center in the longitudinal direction, the height of the current plate in each longitudinal direction is set to a predetermined value according to the dimensional ratio from the inflow pipe to the tank side wall in each longitudinal direction. The hot water device for a hot water flush toilet seat according to claim 2, wherein the hot water is set by a ratio. 4. The hot water device for a hot water flush toilet seat according to claim 2, wherein a resistance portion is provided in a tank bottom portion and a rectangular inflow passage formed in each longitudinal direction from the current plate. 5. A rectifying plate provided in combination with a heating means.
Or the warm water device of the warm water flush toilet seat according to 3 or 4.