JPH0332939Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a composite water heater for a bathroom that can be installed using a through-hole in the outer wall for installing an air supply/exhaust terminal in a bathroom where a balanced full type bath kettle is used. It is something.

Balanced full bathtubs were developed with the aim of eradicating bathtub accidents caused by insufficient ventilation, and as shown in Figure 1 A and B, a through hole e is bored in the outer wall d, and the inside of the bathroom is An air supply/exhaust terminal b of a balanced full type bathtub a installed in the bathtub is made to protrude outdoors through the through hole e. In addition,
In FIG. 1, c is a bathtub.

Balanced full-type bathtubs like the one mentioned above, which only have a reheating function, have been put into practical use for 17 years.
In 2012, the bathtub with hot water supply was 12 years old, and it was already 1~2 years old.
It's time for the second replacement. On the other hand, in bathrooms equipped with balanced full type bathtubs, the bathtubs have to be small in order to take up space for the bathtub, and this is particularly difficult to do in existing high-rise housing complexes such as public housing and condominiums. It has become a fateful problem. On the other hand, in recent years, as income levels have risen, there has been an increasing desire to increase hot water supply capacity or improve bathrooms. This can be dealt with by installing the container outdoors or on the outer wall of a building, but in the case of the existing high-rise housing complexes, the installation work from the outside is extremely troublesome and dangerous.

As mentioned above, the present invention takes into consideration that it is time to replace the balanced full type bathtub, and it can be easily and easily installed from inside the bathroom by using the hole through the outer wall after the existing bathtub has been removed. It is an object of the present invention to provide a composite water heating device which has a water heating function capable of heating water (hot water) in a bathtub and at least a water heating function for supplying hot water into the bathroom.

DESCRIPTION OF THE PREFERRED EMBODIMENTS An example of the implementation of the bathroom composite water heater of the present invention will be described below with reference to the accompanying drawings.

Figure 2 is an external perspective view of the water heater body used in the device of the present invention, Figure 3 is a schematic vertical sectional view showing the water heater body installed in a through hole in the outer wall of a bathroom, and Figure 4 is a water heater body. Fig. 5 is a system diagram showing the gas/water system.

In the exterior wall through hole e, a framework made of a wooden frame or a metal frame for fixing the air supply/exhaust terminal is embedded in the exterior wall before finishing the bathroom wall, and its inner diameter is generally 350 mm in length x 230 mm in width. Standard.

In the present invention, a rectangular cylindrical case 1 having a rectangular cross-sectional shape slightly smaller than the outer wall through-hole e and a length longer than the thickness w of the outer wall is constructed. A mounting flange 22 is formed at one end of the casing 1, and when the flange 22 is fixed to the framework, at least a portion of the casing 1 protrudes outside from the outer wall d, as shown in FIG. At the same time, an exhaust port 20 is formed at the tip of the protruding portion, and an air supply port 21 is formed at the bottom surface.

A is the main body of the water heater disposed on the outdoor projecting part of the casing 1, and as described later, the heat exchanger 2 of the instant water heater for hot water supply, its burner 3, and the water in the bathtub ( Instant water heater heat exchanger 4 for circulating heating of hot water
It has a burner 5, a combustion blower 6 for both burners, a spark plug, a combustion detection element (not shown), and the like. B is an operating mechanism installed on the base side (inside the outer wall) of the case 1, which includes a gas source solenoid valve 7, a gas governor 8, a gas proportional control valve 9, a water governor and a flow switch 10, as shown in FIG. It has a circulation pump 11, a flow switch 12, a controller 13, etc.

Reference numeral 25 denotes a cover fixed together with the flange 22 and covering the end surface of the casing 1 on the bathroom side,
A bulging portion D is formed in a part of the cover, and a portion covered by the bulging portion, that is, a position slightly protruding from the flange 22, is provided with water supply and hot water leading to the water heater main body A and the operating mechanism portion B. , a connection portion 19 that includes a connection port for gas supply, an electric terminal board, etc. is provided. To describe this connection part 19 in more detail, as shown in FIG.
, the connection part 19b of the water supply pipe 15, the connection part 19c of the hot water supply pipe 16, the connection part 19d of the circulation outgoing pipe 17 and the circulation return pipe 18, etc.

As shown in FIG. 5, the heat exchanger 4 is disposed in a circulation path in which a circulation outgoing pipe 17 and a circulation return pipe 18 are communicated through a circulation port 26 attached to the bathtub c. Further, the heat exchanger 2 is disposed in the middle of the route from the water supply pipe 15 to the hot water supply pipe 16.

The connections of the piping leading to the main body A of the water heater having each of these heat exchangers, the piping leading to the operating mechanism part B, and the electrical wiring are made by expanding a part of the cover 25 covering the bathroom side of the casing 1, as described above. A connecting portion 19 that forms a protruding portion D and is provided in a portion covered by the protruding portion D.
It will be carried out at In this way, with the bathtub c temporarily evacuated, the casing 1 incorporating the water heater main body A and the operating mechanism part B is inserted into the outer wall through hole e from inside the bathroom, and the flange 22 is attached to the frame. After fixing, the pipes etc. leading to the main body A of the water heater and the operating mechanism part B can be easily connected to the flexible circulation pipes, gas supply, water supply, and hot water supply pipes leading to the bathtub at the connection part 19. When the rear cover 25 is attached and the bathtub c is placed in contact with the outer wall, the casing including the cover 25 is hidden by the bathtub c. In addition, when performing inspection or repair, etc., after shifting the bathtub c, removing the cover 25 and disconnecting each connection part 19, the water heater main body A and the operating mechanism part B are assembled. This can be done easily by pulling out the case 1 into the bathroom. In this case, the cover 25 is attached to the flange 2
2 may be tightened together, or may be attached using a screw different from the tightening screw of the flange 22.

In addition, as shown in FIG. 4, in the illustrated embodiment,
Separately from the casing, an operating section E is provided on the inner wall of the bathroom, and a hot water pipe 16, a hot water tap 32 to a bathtub, etc., and a shower 33 are connected to the operating section E.
In the operation part E, there is a switching mechanism between hot water supply and circulation heating.
A control mechanism 23 including a hot water temperature setting mechanism, power on/off and display means, and a hot water supply/shower switching means 24 are provided. In addition, in the figure, 27 is an earth leakage breaker installed outside the bathroom;
8 is a gas main valve, 29 is a water tap, and 30 and 31 are electrical connections. The hot water supply faucet 32 is rotatably attached to the operation part E, and can be rotated toward the bathtub side to pour hot water directly into the bathtub C, or rotated toward the washing area side to provide hot water as hot water. Make it usable.

As mentioned above, the composite water heater of the present invention has a longitudinal section or a rectangular shape whose dimension is slightly smaller than the inner dimension of the outer wall through hole for the air supply/exhaust terminal of a balanced full type bathtub, and the length is the width of the outer wall. A horizontally rectangular cylindrical casing with a longer dimension is constructed, and an air supply/exhaust port is formed at one end of the casing, and a mounting flange is formed at the other end. A main body of an instantaneous water heater for circulation heating of water (hot water) and hot water supply and its operating mechanism are disposed, and the main body of the water heater and the operating mechanism are located at a position slightly protruding from the flange of the casing. Connecting parts for various types of piping and electrical wiring are provided all at once, and instead of the supply/exhaust terminal of the balanced full type bathtub, the casing is inserted into the through hole with its supply/exhaust port side protruding outdoors. Fit and install the flange until it contacts the framework,
and the casing is fixed to the frame via the flange, the connection portions of the various piping and electrical wiring are connected to required members, and the connection portion is covered by a bulge of a cover fixed on the flange. Therefore, by using the hole through the outer wall of the supply/exhaust terminal of a balanced full type bathtub, it is possible to heat the water supply, which can be used for circulating and heating the water (hot water) in the bathtub, and for supplying hot water to the bathtub, hot water, etc. It is possible to install a composite water heater that has both functions, and thereby a bathtub that is as wide as the installation space of a balanced full type bathtub can be used. This makes it extremely safe and easy to install and inspect/repair complex water heaters from inside the bathroom, making it possible to increase the hot water supply capacity in existing high-rise housing such as public housing and condominiums, which was previously considered extremely difficult. It has the effect of satisfying the desire to improve the bathroom.

[Brief explanation of the drawing]

Figures 1A and 2B are explanatory diagrams of a bathroom using a balanced full type bath pot, Figure 2 is an external perspective view showing an example of the water heater body used in the present invention, and Figure 3 is an illustration of the water heater body. A schematic vertical sectional view showing the state in which it is attached to an outer wall through-hole, FIG. 4 is an explanatory diagram of the piping, and FIG. 5 is a system diagram of the gas/water system. a... Balanced full bathtub, b... Supply/exhaust terminal, c... Bathtub, d... Outer wall, e...
Outer wall through hole, 1... casing, 2, 4... heat exchanger,
3, 5... Burner, 6... Combustion blower, 7...
Gas source solenoid valve, 8...Gas burner, 9...Gas proportional control valve, 10...Water governor/flow switch,
11...Circulation pump, 12...Flow switch,
13...Controller, 14...Gas supply pipe, 1
5...Water supply pipe, 16...Hot water supply pipe, 17...Circulation outgoing pipe, 18...Circulation return pipe, 19...Connection part, 20
...exhaust port, 21 ... air supply port, 22 ... flange, 23 ... control mechanism, 21 ... switching means, 2
5...Cover, 26...Circulation port, 28...Gas main valve, 29...Water faucet, 30, 31...Electric wiring.

Claims (1)

[Scope of utility model registration request] A horizontally oblong rectangular cylindrical case having a vertical cross section slightly smaller than the inner diameter of the outer wall through hole for the air supply/exhaust terminal of a balanced full type bathtub, and a length longer than the width of the outer wall. A supply/exhaust port is formed on one end of the casing, and a mounting flange is formed on the other end, and a flange for circulating and heating the water (hot water) in the bathtub and for hot water supply are provided inside the casing. The main body of the instantaneous water heater and its operating mechanism are arranged, and the connection parts of various piping and electrical wiring leading to the main body of the water heater and the operating mechanism are collectively arranged at a position slightly protruding from the flange of the casing. The casing is fitted into the through hole until its air supply and exhaust port protrudes outdoors and the flange contacts the framework, and the casing is fixed to the framework via the flange. 1. A composite water heater for a bathroom, characterized in that connection parts of various piping and electric wiring are connected to required members, and the connection parts are covered by an expanding part of a cover fixed on the flange.