JP2792830B2 - 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 Unexamined Utility Model Publication No. Sho 62-3881 discloses a hot water tank structure for a hot water flush toilet seat, as shown in FIG. A water supply port 101 is formed at the bottom of 100, and a cylinder 300 that defines a small chamber 302 having a water passage hole 301 communicating with the tank chamber 102 is disposed in the tank chamber 102 so as to face the water supply port 101. Things are disclosed.

[0003]

According to this, the washing water supplied from the water supply port 101 is supplied to the tank chamber 102 from the water passage hole 301 of the cylinder 300. Therefore, the flow of the supply water can be regulated to some extent, and the temperature distribution of the cleaning water in the tank chamber 10 can be improved. However, a low-temperature region where the water temperature is low is generated below the heating heater 200, and the temperature in the tank chamber 102 is reduced. The distribution may vary. This is because the cleaning water having a low water temperature stays near the lower portion of the heater 200 due to heat convection and the like. 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 has as its object to provide a hot water tank structure of a hot water washing toilet seat which is advantageous for making the temperature distribution of the washing water in the hot water tank uniform. .

[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 the present invention is composed of a tank large chamber having a predetermined volume, and a tank small chamber provided continuously below the tank large chamber and having a smaller volume than the tank large chamber, A hot water tank having a tank chamber for accommodating wash water having a water supply port formed in the tank chamber; and a heating unit disposed in the tank chamber of the tank chamber of the hot water tank, for heating the wash water in the tank chamber. A water heater that is bridged between the heating heater and the tank chamber of the tank chamber of the hot water tank, is located above the water supply port and below the heating part of the heating heater, and horizontally orients the washing water supplied from the water supply port. And a flow straightening plate having holes.

[0006]

According to the structure of the present invention, the heating portion disposed in the small tank heats the washing water. 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 heat generating portion of the heat generating heater can be reduced, which is advantageous for making the temperature distribution of the cleaning water in the tank chamber of the hot water tank uniform. Therefore, low-temperature washing water with a low water temperature is used,
This can prevent the user from touching the portion to be cleaned, which is advantageous for preventing discomfort.

Further, according to the structure of the present invention, the washing water is supplied from the water supply port into the small tank of the tank chamber of the hot water tank. The washing water is oriented laterally when passing through the flow holes of the current plate. Therefore, the washing water supplied from the water supply port easily hits the inner wall surface of the small tank. Therefore, the flow rate of the washing water is reduced, and the washing water supplied from the water supply port and having a low temperature is prevented from running vigorously in the tank room. Also in this sense, it is advantageous for making the temperature distribution of the washing water in the tank chamber of the hot water tank uniform.

[0008] In the case where the heat generating portion is disposed in the upper portion of the tank chamber, the heat convection in the tank chamber is not good, and an overheated area where washing water having an excessively high water temperature is locally collected (also referred to as a heat spot). Is easy to occur. 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. In this respect, according to the structure according to the present invention, since the heat generating portion of the heat generating heater is arranged in the tank small chamber connected to the bottom of the large tank chamber, the heat generating portion of the heat generating heater is removed from the surface of the washing water in the tank room. This is advantageous for keeping the distance 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. In this sense as well, in this sense, it is advantageous for making the temperature distribution of the washing water in the tank chamber of the hot water tank uniform.

[0009]

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. 5 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 smaller volume than the tank large chamber 20.

In FIG. 1, the lower part of the tank chamber 22 is
A lateral water supply port 25 connected to the 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. The hot water outlet 27 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 local part) of the user.

Above the water supply port 25 in the small tank chamber 22, a resin rectifying plate 30 serving as a baffle plate is provided.
Are held substantially parallel to the bottom wall 22 c of the tank chamber 22. Water flow holes 3 penetrating in the thickness direction of the current plate 30
An appropriate number 2 are formed, and a barrier plate portion 34 is integrally formed above the water passage hole 32 via a continuous wall 34t.
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 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 and the tank small chamber 22
, And the flow velocity further decreases.

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 <b> 3
The amount of washing water can be considerably reduced. Therefore, it is advantageous in making the temperature distribution of the washing water in the tank chamber of the hot water tank uniform. Therefore, when the user cleans the portion to be cleaned with the cleaning water, it is possible to suppress the use of the cleaning water in the low-temperature region W3 where the water temperature is low, which is advantageous in preventing discomfort.

Further, the heating heater 4 includes a vertical heating portion 40 extending in the vertical direction in the tank chamber 22, 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. In this sense also, it is advantageous for making the distribution of the water temperature in the tank chamber 2 uniform.

Further, in the present embodiment, the tank small chamber 22 includes:
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. In particular, the barrier plate portion 34 that covers the water holes 32 in parallel with the current plate 30 allows
Wash water is likely to be oriented horizontally.

Since the flow rate of the washing water can be reduced in this manner, the running of the washing water with a low temperature supplied from the water supply port 25 can be suppressed. 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.

In this embodiment, as can be understood from FIG. 2, the vertical heating portion 40 of the heating heater 4 is located above the barrier plate portion 34 covering the water passage hole 32 arranged at the center of the current plate 30. Therefore, it is advantageous to secure a contact time between the cleaning water discharged in a horizontal orientation from the water passage hole 32 arranged at the center and the vertical heating portion 40 of the heating heater 4. However, the present invention is not limited to this, and the vertical heat generating portion 40 may not be disposed above the water passage hole 32 disposed at the center of the current plate 30.

(Application Example) FIG. 5 shows an application example. In this example, a pottery 7 functioning as a toilet bowl is provided as shown in FIG. 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.

In addition, the present invention is not limited to the embodiment described above and shown in the drawings, and the number of water holes can be selected as appropriate, for example, the number can be appropriately selected as needed without departing from the gist. You can do it.

[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 a hot water tank equipped with a current plate.

FIG. 3 is an enlarged cross-sectional view near a current plate.

FIG. 4 is an enlarged plan view of a main part of the current plate.

FIG. 5 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. 6 is a cross-sectional view of a hot water tank according to a conventional example.

[Explanation of symbols]

In the figure, 1 is a hot water tank, 2 is a tank room, 20 is a large tank room, 22 is a small tank room, 30 is a rectifying plate, 32 is a water hole,
34 is a barrier plate portion, 4 is a heating heater, 40 is a vertical heating portion, 4
Reference numeral 2 denotes a lateral heat generating portion.

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takahiro Ohashi 2-1-1 Asahi-cho, Kariya-shi, Aichi Aisin Seiki Co., Ltd. (72) Inventor Ken Takamata 3-6-1 Koiehoncho, Tokoname-shi, Aichi Co., Ltd. (56) References JP-A-4-140340 (JP, A) JP-A-60-39821 (JP, U) JP-A-60-187863 (JP, U) (58) Fields investigated (Int) .Cl. ⁶ , DB name) E03D 9/00-9/16

Claims (1)

(57) [Claims] 1. 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, and a water supply port formed in the tank small chamber. A hot water tank having a tank chamber for accommodating washing water having: a heating unit provided in a small tank of the tank chamber of the hot water tank, the heating heater heating the washing water in the tank chamber; A water passage hole bridged in the tank chamber of the tank room of the tank, located above the water supply port and below the heat generating portion of the heat heater, and horizontally orients the washing water supplied from the water supply port. A hot water tank structure for a hot water flush toilet seat, comprising: