JP3029779B2 - Hot water tank structure of hot water flush 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 hot water tank structure of a hot water flush toilet seat which has an enhanced heating effect for cleaning water for cleaning a portion to be cleaned (a human body part) of a user.

[0002]

2. Description of the Related Art Japanese Utility Model Laid-Open Publication No. 63-86184 discloses a hot water tank structure for a hot water washing toilet seat, which is provided with a non-heating portion in a vertical direction and a horizontal heating portion extending laterally from a lower end of the non-heating portion. An L-shaped heating heater is provided, and the heating heater is provided in a tank chamber of a square box-shaped hot water tank. In this case, since the lateral heating portion of the heating heater is oriented in the horizontal direction along the bottom wall of the tank chamber, a heating distance in the heating heater can be secured.

[0003]

However, according to the technique disclosed in the above publication, the heating effect of the washing water in the hot water tank is not always sufficient. The reason for this is that, due to thermal convection and the like, the cleaning water having a low water temperature stagnates near the lower portion of the heating heater, and a low-temperature region of the cleaning water is formed. As described above, the cleaning water located in the low temperature region and having a low water temperature is used. When the cleaning water touches a part to be cleaned (local part), it causes discomfort.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and an object of claims 1 and 2 is to reduce the amount of water in a low-temperature region located below a heating heater to reduce the amount of water in a hot water tank. It is an object of the present invention to provide a hot water tank structure for a hot water flush toilet seat that can improve the heating effect of the flush water and improve the problem of user discomfort.

[0005]

The present inventors have completed the present invention to solve the above-mentioned problems. That is, the hot water tank structure of the hot water flush toilet seat according to claim 1 includes a large tank chamber having a predetermined volume and a small tank chamber having a smaller volume than the large tank chamber provided below the large tank chamber. A hot water tank with a tank chamber for storing the wash water, a vertical heating section installed in the tank chamber of the hot water tank and extending vertically in the tank small chamber, and the bottom of the tank large chamber from the vertical heating section
And a heat generating heater having a horizontal heat generating portion extending laterally along the wall .

According to a second aspect of the present invention, there is provided a hot water washing toilet seat structure having a tank chamber having a predetermined volume and a hollow chamber formed by partially projecting a bottom wall of the tank chamber below the tank. a hot water tank for containing water, is equipped to a tank chamber of the hot water tank, comprising a heater having a horizontal heating portions disposed so as face the lateral direction along the bottom surface of the recess chamber of the hot water tank, heating The top surface of the horizontal heating part of the heater is hot water
Those characterized that you have installed near the height of the inner surface of the bottom wall of the tank.

[0007]

According to the first aspect of the present invention, the vertical heating section disposed in the small tank heats the washing water in the small tank. The tank small chamber has a small volume as compared with the volume of the entire tank chamber. Therefore, the amount of cleaning water in the low-temperature region located below the vertical heating portion of the heating heater,
It can be made smaller and the cleaning water heating effect can be improved. Therefore, cleaning water having a low water temperature in a low-temperature region is used, which can prevent the user from touching a portion to be cleaned, which is advantageous in preventing discomfort.

Further, the heating heater is provided with a vertical heating portion extending in the vertical direction in the tank chamber and a horizontal heating portion extending in the horizontal direction from the vertical heating portion, so that a heating distance by the heating heater is secured. In this sense, the heating effect of the cleaning water can be improved. In addition, when the heat generating portion is arranged in the upper part of the tank chamber, the heat convection in the tank chamber is not good,
An overheated area (also referred to as a heat spot) in which cleaning water having an excessively high water temperature is locally accumulated easily occurs. If the cleaning water in such an overheated area touches a part to be cleaned (a human body part) of a user, it causes discomfort.

According to the first aspect of the present invention, since the vertical heating portion of the heating heater is disposed in the tank small chamber connected to the bottom of the large tank chamber, the vertical heating portion of the heating heater is removed from the surface of the washing water in the tank chamber. This is advantageous for keeping the vertical and horizontal heating parts away. Therefore, the cleaning water heated in the small tank chamber is easily convected easily by heat, and it is difficult to form an overheated area in the upper part of the tank chamber. Also in this sense, the heating effect of the cleaning water can be improved.

According to the second aspect, the heat-generating portion of the heat-generating heater is disposed along the bottom surface of the hollow chamber of the hot water tank. The volume of the depression chamber itself is considerably smaller than the volume of the entire tank chamber. Therefore, the amount of cleaning water in the low-temperature region located below the heat generating portion can be reduced. Therefore, it is possible to prevent the cleaning water in the low temperature region where the water temperature is low from touching the part to be cleaned by the user, which is advantageous for preventing discomfort.

According to the second aspect of the present invention, since the heat generating portion of the heat generating heater is arranged along the bottom surface of the hollow chamber which is the bottom of the hot water tank, the vertical heat generating portion is kept away from the surface of the washing water in the tank room. This is advantageous. Therefore, the cleaning water heated in the small tank chamber is easily convected easily by heat, and it is difficult to form an overheated area in the upper part of the tank chamber. Also in this sense, the heating effect of the cleaning water can be improved.

[0012]

The embodiments of the present invention will be specifically described below. (Embodiment 1) In FIGS. 1 and 2, the hot water tank 1 is made of resin, and is constituted by connecting an upper tank 1a and a lower tank 1b. The hot water tank 1 has a tank chamber 2 for storing cleaning water. The tank chamber 2 includes a large tank chamber 20 having a predetermined volume, and a small tank chamber 22 having a smaller volume than the large tank chamber 20 connected to the bottom of the large tank chamber 20. In FIG. 1, the lateral dimension of the large tank chamber 20 is indicated by N1, and the lateral dimension of the small tank chamber 22 is indicated by N2. When N1 related to the large tank chamber 20 is set to 100, generally N2 related to the small tank chamber 22 can be set to about 15 to 20, but is not necessarily limited to this value.

In FIG. 1, the vertical dimension of the tank large chamber 20 is H
1, the vertical dimension of the tank chamber 22 is indicated by H2. Therefore, the entire shape of the hot water tank 1 according to the present embodiment is formed in a substantially “L-shape”. As can be understood from FIG. 3 described later, the tank chamber 22 is arranged beside the ceramic 7. In this example, as shown in FIG. 1, the small tank chamber 22 is connected to one end of the large tank chamber 20, but in some cases, the small tank chamber 22 is connected to both ends of the large tank chamber 20, and hot water is supplied. The overall shape of the tank 1 may be a “gate shape”. In short, the tank small chamber 22 only needs to have a small volume.

In FIG. 1, below the tank chamber 22,
A water supply port 25 leading to a water supply source is formed. on the other hand,
A hot water outlet 27 is formed in the upper part of the tank large chamber 20. Therefore, the hot water tank 1 adopts a method of supplying water from below and taking out hot water from above. Hot water outlet 2
Numeral 7 is connected to a cleaning nozzle that jets cleaning water provided in the human body local cleaning device to a part to be cleaned (a human body part) of a user.

Above the water supply port 25 in the small tank 22, a current plate 30 made of resin is provided with a bottom wall 22 of the small tank 22.
It is held substantially parallel to c. A suitable number of water passage holes 32 penetrating in the thickness direction of the current plate 30 are formed.
A barrier plate portion 34 is integrally formed above the water passage hole 32. The water passage hole 32 and the barrier plate portion 34 have a function of orienting the cleaning water in the horizontal direction, that is, in the direction of the arrow A1. Therefore, when the washing water supplied from the water supply port 25 to the tank small chamber 22 passes through the water passage hole 32, the washing water is oriented horizontally.

The heating heater 4 is mounted on the upper wall of the hot water tank 1 by a mounting tool 4x, and as a result, is disposed in the tank chamber 2 of the hot water tank 1. 4i is a terminal of the heating heater 4. The heating heater 4 is a rod-shaped heater, and extends vertically in the tank chamber 22.
0, a horizontal heating portion 42 extending in the horizontal direction along the bottom wall of the large tank room 20, and a vertical non-heating portion 44 arranged in the height direction of the large tank room 20. Therefore, as shown in FIG. 1, the heating heater 4 has a crank shape. Note that the vertical heating section 40 is oriented substantially parallel to the tank chamber 22,
It has entered the tank compartment 22.

In FIG. 1, a hatched area is a heat generation area. Therefore, the heating area of the heating heater 4 is the hot water tank 1
Are arranged close to the tank small chamber 22 side. In the present embodiment, the current plate 30 and the vertical heating section 40 are close to each other in the vertical direction. The vertical heating section 40 of the heating heater 4
The horizontal heating section 42 is formed by a sheathed heater in which a heating material is loaded in a hollow pipe together with a conductive wire.

The cleaning water located below the vertical heating portion 40 of the heating heater 4 is hardly heated due to heat convection and the like, and the low-temperature region W3 where the water temperature is low as described above is easily formed. In this regard, according to the present embodiment, the vertical heating portion 40 extending in the vertical direction and disposed in the small tank chamber 22 enters the small tank chamber 22 and heats the washing water in the small tank chamber 22. Tank chamber 2
2 has a considerably smaller volume than the entire volume of the tank chamber 2, and therefore has a low-temperature region W located below the vertical heating portion 40.
The amount of washing water of No. 3 can be considerably reduced. for that reason,
The heating effect of the washing water can be improved. Therefore, when the user cleans the portion to be cleaned with the cleaning water, the low temperature region W where the water temperature is low.
The use of the washing water of No. 3 can be suppressed, which is advantageous for preventing discomfort.

The heating heater 4 further includes a vertical heating portion 40 extending in the tank chamber 22 in the vertical direction and a horizontal heating portion 42 extending in the horizontal direction from the vertical heating portion 40. As a result, the amount of heat generated by the heating heater 4 is also ensured. In this sense, the heating effect of the cleaning water can be improved. In addition, when the heat generating area is arranged in the upper part of the tank chamber 2, the heat convection in the tank chamber 2 is not good, so that an overheat area in which the washing water having an excessively high water temperature is locally collected occurs. easy. If the cleaning water in the overheated area touches the part to be cleaned by the user, it causes discomfort.
In this regard, according to the present embodiment, the vertical heating portion 40 of the heating heater 4
Is a tank chamber 22 connected to the bottom of the tank chamber 20.
, It is advantageous to keep the vertical heating section 40 and the horizontal heating section 42 away from the surface of the washing water in the tank chamber 2. Therefore, the washing water in the tank chamber 2 can be heated as close to the bottom as possible. Therefore, the cleaning water heated in the small tank chamber 22 is favorably thermally convected, and it is difficult to form an overheated area in the upper part of the tank chamber 2. Also in this sense, the heating effect of the cleaning water can be improved, which is advantageous for making the distribution of the water temperature in the tank chamber 2 uniform.

Further, in this embodiment, the tank chamber 22 is
Since the rectifying plate 30 functioning as a baffle plate is disposed, the cleaning water supplied from the water supply port 25 to the tank chamber 2 is
The flow velocity falls on the current plate 30. Further, the current plate 3
After passing through the zero water passage hole 32, it is oriented sideways, that is, in the direction of the arrow A1 (see FIG. 2), and hits the wall portion 22e that divides the small tank chamber 22, so that the flow velocity further decreases.

Since the flow rate of the washing water can be reduced in this way, it is possible to prevent the water supplied from the water supply port 25 having a low temperature from running vigorously. Further, the contact time between the cleaning water having the reduced flow velocity and the vertical heating portion 40 of the heating heater 4 is ensured, and the cleaning water is easily heated. Also in this sense, the heating effect of the cleaning water in the tank chamber 2 can be enhanced, and the water temperature in the tank chamber 2 can be made uniform.

(Application Example) FIG. 3 shows an application example. In this example, as shown in FIG. 3, a pottery 7 functioning as a toilet bowl is provided. The hot water tank 1 is installed on the pottery 7 while being covered with a cover 61 together with the plate 60. The large tank chamber 20 of the hot water tank 1 is located above the pottery 7, and the small tank chamber 22 is located beside the pottery 7.

(Embodiment 2) Next, Embodiment 2 will be described with reference to FIGS. Also in this example, hot water tank 1
Is installed on the pottery 7 while being covered by the cover 6 together with the plate 60. This hot water tank 1 is the same as that of the first embodiment.
Unlike this, it is not an "inverted L-shaped" tank. It has the shape of a regular square box. Therefore, although the tank small chamber 22 is not formed, a space can be secured beside the ceramic 7, but the amount of water in a low-temperature region where the water temperature is lower than the heating heater 4 tends to increase. This example is an improvement on this point.

That is, the hot water tank 1 has a tank chamber 2 having a predetermined volume and a substantially central area of a bottom wall 1y of the tank chamber 2 partially protruding below the tank, ie, a projecting wall protruding downward. And a depression chamber 19 formed of 2x.
As shown in FIG. 5, the amount of depression in the depression chamber 19 is indicated by H3. The depression chamber 19 may be formed not only in the vicinity of the central area of the hot water tank 1 but also in the vicinity of an end thereof, and the position thereof can be appropriately selected.

The projected area of the entire bottom wall of the tank chamber 2 is 100
, The projected area of the cavity 19 is generally 1
It can be about 5 to 20, but is not necessarily limited to this value. The heating heater 4 is provided in the tank chamber 2 of the hot water tank 1. The heating heater 4 includes a lateral heating section 4 arranged along the bottom surface of the hollow chamber 19 of the hot water tank 1.
2 is provided. The horizontal heat generating portion 42 may extend linearly in its planar form, or may be bent into a “C shape” or an “O shape”. In addition, the width (diameter) of the horizontal heating part 42 is
Is denoted by T. Here, the upper surface of the horizontal heating portion 42 is installed near the height of the inner surface of the bottom wall 1y of the hot water tank 1.

As described above, the horizontal heating portion 42 of the heating heater 4 is
The hot water tank 1 is arranged along the bottom surface of the hollow chamber 19. Here, since the volume of the depression chamber 19 is considerably smaller than the entire volume of the tank chamber 2, the amount of the cleaning water located below the horizontal heat generating portion 42 is considerably reduced. Therefore, the amount of water in the low temperature region W3 located below the heating heater 4 can be made as small as possible, and the heating effect of the cleaning water can be improved. Therefore, when the user cleans the part to be cleaned (local part) with hot water, it is possible to suppress the use of the cleaning water in the low-temperature region W3.

Further, since the horizontal heating section 42 of the heating heater 4 is disposed along the bottom of the depression chamber 19 which is the bottom of the hot water tank 1, the washing water in the tank chamber 2 is provided in the same manner as in the above embodiment. This is advantageous in keeping the heat-generating portion, that is, the horizontal heat-generating portion 42, away from the water surface. Therefore, the cleaning water heated in the small tank chamber 22 satisfactorily conducts heat convection, and it is difficult to form an overheated area in the upper part of the tank chamber 2. Also in this sense, the heating effect of the cleaning water can be improved, which is advantageous for making the water temperature distribution in the tank chamber 2 uniform.

In this example, the hot water tank 1 can be made smaller when the same effective hot water amount is viewed. The number of the hollow chambers 19 is not limited to one, but may be plural, and the lateral heat generating portion 42 of the heating heater 4 may be arranged along each hollow chamber 19. Third Embodiment Next, a third embodiment will be described with reference to FIG. This example has basically the same configuration as that of the second embodiment, and has the same operation and effect.

In this example, the planar shape of the hollow chamber 19 is circular, and the lateral heat generating portion 42 is bent in an arc shape (C shape) along the hollow chamber 19. In this example, it is advantageous to secure a heat generation distance in the hollow chamber 19. In addition, the present invention is not limited to only the embodiments described above and shown in the drawings, and can be appropriately selected as needed without departing from the gist.

(Supplementary Note) The following technical idea can be understood from the above-described embodiment. The heating heater has a crank shape including a vertical heating portion extending in the vertical direction, a horizontal heating portion connected to the vertical heating portion and extending in the horizontal direction, and a non-heating portion connected to the horizontal heating portion and extending in the vertical direction. The structure of claim 1, wherein said structure is provided.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a hot water tank including a heating heater according to a first embodiment.

FIG. 2 is a sectional view of a main part of the hot water tank.

FIG. 3 is a cross-sectional view showing a state in which a pottery is equipped with a hot water tank according to an application example.

FIG. 4 is a cross-sectional view showing a state in which a pottery is equipped with a hot water tank according to the second embodiment.

FIG. 5 is a sectional view of a main part of the hot water tank.

FIG. 6 is a cross-sectional view showing a plane configuration of a main part of a hot water tank according to the third embodiment.

[Explanation of symbols]

In the figure, 1 is a hot water tank, 2 is a tank room, 19 is a hollow room,
Reference numeral 20 denotes a large tank, 22 denotes a small tank, 4 denotes a heating heater, 40 denotes a vertical heating unit, and 42 denotes a horizontal heating unit.

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Takahiro Ohashi 2-1-1 Asahi-cho, Kariya-shi, Aichi Aisin Seiki Co., Ltd. (72) Inventor Koichi Hayashi 2-1-1 Asahi-cho, Kariya-shi, Aichi Aisin Seiki (72) Inventor Shinji Kawai 2-1-1 Asahi-cho, Kariya-shi, Aichi Aisin Seiki Co., Ltd. (72) Inventor Ikuya Ioda 3--6, Koiehonmachi, Tokoname-shi, Aichi Pref. 56) References JP-A 4-140340 (JP, A) JP-A 1-165836 (JP, A) JP-A 4-61171 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , (DB name) E03D 9/00-9/16

Claims (2)

(57) [Claims] 1. A hot water tank having a tank chamber for storing washing water, comprising: a tank large chamber having a predetermined volume; and a tank small chamber provided below the tank large chamber and having a smaller volume than the tank large chamber. is equipped with the tank, the tank chamber of hot water tank, a vertical heating portion extending in the vertical direction in the tank chamber, wherein the data from the vertical heat-generating unit
A hot water tank structure for a hot water flush toilet seat, comprising: a heating heater having a horizontal heating portion extending laterally along a bottom wall of the large ink chamber. 2. A hot water tank for storing washing water having a tank chamber having a predetermined volume, a hollow chamber formed by partially projecting a bottom wall of the tank chamber below the tank, and a hot water tank. A heating heater provided in the tank chamber of the hot water tank, the heating heater having a horizontal heating portion arranged so as to face in the horizontal direction along the bottom surface of the hollow chamber of the hot water tank. Of the bottom wall of the hot water tank
Hot water tank construction of bidet characterized that you have installed near the height of the inner surface.