JP2001208339A - Hot water supply apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a hot water supply apparatus having an exhaust opening and an air supply opening on the front side in which wind pressure withstanding performance is enhanced, by changing the exhausting and air supplying directions to sideways while keeping the low and slim profile as it is and good air supply and exhaust are ensured by keeping the supply and exhaust air pressures at the same level. SOLUTION: This hot water supply apparatus having an exhaust opening and an air supply opening 14 in the front face of a front cover 11 comprises an exhaust cover 20 fixed onto the front cover 11 while covering the exhaust opening and the opposite side parts thereof and introducing exhaust gas from the exhaust opening sideways, an air supply cover 30 fixed onto the front cover 11 independently from the exhaust cover 20 while covering the air supply opening 14 and the opposite side parts thereof and introducing air to the air supply opening 14 from sideways. The exhaust cover 20 and the air supply cover 30 are provided, respectively, with a ventilating direction determining means for closing any one of openings 21a, 31 provided at the opposite side end parts thereof and ventilating the other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a water heater, and more particularly, to a water heater in which an exhaust port and an air inlet are arranged on the front of a water heater main body. The present invention relates to a hot water supply device that can improve wind resistance and can easily obtain the same pressure by aligning the direction of air supply and the direction of exhaust.

[0002]

2. Description of the Related Art Conventionally, in a hot water supply apparatus having an exhaust port and an air supply port provided on a front surface of a water heater main body, it is easy to install the device on a back wall or the like. ,
Depending on the installation conditions and the like, when the wind pressure from the side is large, if the air supply port and the exhaust port are in different wind pressure zones, the wind pressure resistance may be reduced. For this reason, if necessary, the direction of exhaust gas exhaust from the exhaust port and the direction of air supply to the air supply port are guided from the front to the side, and are guided in the same direction to make the supply and exhaust air the same pressure state. There is a need. In a conventional hot water supply device, etc.
Japanese Utility Model Laid-Open Publication No. 3-128241 discloses a combustion apparatus provided with an exhaust pipe for guiding exhaust gas from an exhaust port provided on a front surface of a combustor body or the like to the side. Japanese Utility Model Laid-Open Publication No. 6-65732 discloses a water heater in which an exhaust port and an air supply port are provided on the front surface of a water heater main body, and an exhaust guide cylinder is provided at the exhaust port. There is provided a hot water supply device provided with a supply / exhaust cover in a form for covering the water supply / exhaust cover.

[0003]

SUMMARY OF THE INVENTION
The invention of JP-A-128241 is directed only to the guidance of the exhaust gas, and is not considered from the comprehensive viewpoint with the supply side, so that the same pressure state is obtained in the supply direction and the exhaust direction. I could not do it. The invention disclosed in Japanese Utility Model Laid-Open Publication No. 6-65732 can adjust both the exhaust direction and the air supply direction. However, an exhaust cover is attached to the exhaust port, and the air supply / exhaust cover is further attached from above. Since the water heater is attached, the front surface of the water heater becomes very bulky, and there is a disadvantage that the entire water heater becomes extremely thick.

Accordingly, the present invention solves the above-mentioned drawbacks of the prior art, and has a simple configuration and maintains a slim state without taking up bulk in an arrangement in which an exhaust port and an air supply port are arranged on the front surface of a water heater main body. Then, the direction of the exhaust and the air supply is changed to the side, the wind pressure resistance is improved, and the direction of the air supply and the direction of the exhaust are aligned to make the same pressure state, thereby facilitating the air supply and the exhaust. An object is to provide a hot water supply device.

[0005]

Means for Solving the Problems In order to solve the above-mentioned problems, a water heater according to the present invention is a water heater in which an exhaust port and an air inlet are separately provided on a front surface of a front cover of a water heater main body. An exhaust cover attached to the front cover so as to cover the exhaust port and both side portions thereof, thereby guiding exhaust gas coming out of the exhaust port to the side; and Separately, an air supply cover is provided on the front cover so as to cover the air supply port and both side portions thereof, thereby providing air from the side to the air supply port, and the exhaust cover The first feature is that the air supply cover is provided with a ventilation direction determining means for closing one of the openings provided at both side ends thereof and venting the other. Further, the water heater of the present invention has an exhaust port configured to protrude forward from the front cover on the front surface of the front cover of the water heater main body, and an air supply port configured to be opened on the front surface of the front cover. A hot water supply device provided separately to the front cover so as to cover the entire surface of the front cover except for a through hole through which the exhaust port penetrates. An air supply cover that guides to the air port, and the air outlet that protrudes from the air supply cover and is mounted on the air supply cover so as to cover both sides of the air outlet; An exhaust cover for guiding gas to the side is provided, and the exhaust cover and the air supply cover are each closed by closing one of the openings provided at both ends thereof. , And that is provided with a venting direction determining means for venting the other as the second feature.
Further, the water heater of the present invention has an exhaust port configured to protrude forward from the front cover on the front surface of the front cover of the water heater main body, and an air supply port configured to be opened on the front surface of the front cover. Are separately provided, and are attached to the front cover so as to cover the entire surface of the front cover except for a through hole provided for the exhaust port, whereby air is supplied from the side. An air supply cover portion adapted to be led to the air port, and the air exhaust port protruding from the air supply cover portion and the air supply cover portion arranged on the air supply cover portion so as to cover both sides thereof, whereby the air exhaust port An exhaust cover portion that guides exhaust gas coming out from the side to an air supply and exhaust cover, and the exhaust cover portion and the air supply cover portion of the air supply and exhaust cover respectively Closing the one of the openings provided in both side portions, and a third feature in that is provided a ventilation direction determining means for venting the other. The fourth feature of the hot water supply apparatus of the present invention is that, in addition to the features 2 or 3, the air supply cover portion of the air supply cover or the air supply / exhaust cover is mounted on the water heater main body instead of the front cover. Further, the hot water supply apparatus of the present invention is a hot water supply apparatus having an exhaust port and an air supply port opened on the front surface of a front cover of a water heater main body. An exhaust port is provided on the front cover so as to cover the exhaust port and both sides thereof, thereby guiding exhaust gas coming out of the exhaust port to the side. A ventilation direction determining means for providing a cover, closing any two of the air supply ports provided at three locations on the front surface and both side surfaces of the front cover, and allowing only one other location to ventilate; A fifth feature is that ventilation direction determining means for closing one of the openings provided on both side ends of the cover and venting the other opening is provided.

According to the first feature, the exhaust port opened to the front of the front cover is covered with the exhaust port and the exhaust cover on both sides, and the exhaust cover is mounted on the front cover. Then, one of the openings at both ends is closed by the ventilation direction determining means. As a result, the exhaust gas discharged from the front surface of the front cover flows toward one opening in the exhaust cover, and is discharged to one side of the water heater main body. Similarly, the air supply opening opened in the front of the front cover has the air supply opening and both sides thereof covered by the air supply cover, and the air supply cover is attached to the front cover at both ends. Is closed by the ventilation direction determining means. Thereby, the air supply is taken into the air supply cover from one side of the water heater main body, passes through the air supply cover, and enters the water heater main body from the air supply port. As described above, the hot water supply device is installed under conditions such that wind pressure is applied from the side,
Even if the air supply and exhaust ports are located in different wind pressure zones, easily change to side exhaust and make the air supply and exhaust directions in the same The same pressure state can be ensured, and good air supply and exhaust can be performed.
The exhaust cover and the air supply cover are separately mounted on the front cover, so that they can be prevented from overlapping each other, and thus, it is possible to prevent bulkiness and protrusion from the wall from being increased. it can. Therefore, from the above, according to the first feature, even when an exhaust port and an air supply port are provided on the front surface of the water heater main body, air supply and exhaust can be performed on the same side of the water heater. It is possible to provide a hot water supply device having good wind pressure resistance even against wind pressure from the side. In particular, since the exhaust cover and the air supply cover are separately mounted, both can be mounted without overlapping, and the wind pressure resistance can be improved without increasing the volume of the hot water supply device.

According to the second feature, the air supply cover is attached so as to cover the entire surface of the front cover, and only the exhaust port protrudes through the air supply cover. Then, one of the openings at both ends of the air supply cover is closed by the ventilation direction determining means. Thereby, the air supply is taken into the air supply cover from one side of the water heater main body, passes through the air supply cover, and enters the water heater main body from the air supply port. On the other hand, the exhaust cover is mounted on the air supply cover so as to cover the exhaust port protruding from the air supply cover and both sides thereof, and one of the openings at both ends of the exhaust cover is closed by the ventilation direction determining means. . As a result, the exhaust gas discharged from the exhaust port flows in the exhaust cover toward one opening, and is discharged to one side of the water heater main body. As described above, the hot water supply apparatus can easily supply and discharge the side air even when the air supply port and the exhaust port exist in different wind pressure zones under the installation conditions where the wind pressure or the like from the side is applied. By changing to, wind resistance can be maintained. By setting the direction of air supply and exhaust to be the same direction, the same pressure state of air supply and exhaust can be ensured, and good air supply and exhaust can be performed. The exhaust cover and the air supply cover may be configured such that an exhaust port penetrates and protrudes from an air supply cover mounted on the front cover, and the exhaust cover is attached to the penetrating and protruding exhaust port so as to cover only a necessary area. By doing
An increase in bulk due to air supply and exhaust covers further mounted on the front cover can be suppressed to a small extent, and thus the extent of protrusion from the wall can be suppressed to a relatively small extent. Therefore, from the above, according to the second feature, even when the water outlet is provided with the exhaust port and the air inlet on the front surface of the water heater main body,
Hot water supply and exhaust can be performed on the same side of the water heater, and a hot water supply device with good wind pressure resistance against wind pressure from the side can be provided. In particular, the exhaust cover and the air supply cover can be mounted low in height, and the wind pressure resistance can be improved without increasing the volume of the hot water supply device.

According to the third feature, an air supply cover portion having the same function as the air supply cover in the second feature, and an exhaust cover portion having the same function as the exhaust cover in the second feature. Are integrated into the air supply / exhaust cover, so that the air supply / exhaust cover does not need to be attached to and detached from the water heater body one by one.
It can be installed easily, easily and efficiently by simply attaching individual pieces. Of course, it can be installed in a low bulk state, ensuring wind resistance, ensuring the same pressure state of air supply and exhaust by making the air supply and exhaust directions the same direction, and performing good air supply and exhaust. Can be.

According to the fourth aspect, the air supply cover according to the second aspect is attached to the water heater body instead of the front cover, or the air supply of the air supply / exhaust cover according to the third aspect is provided. By attaching the cover part to the water heater body instead of the front cover, it is possible to supply and exhaust air from the side while sufficiently suppressing the bulk of the water heater from increasing, while ensuring wind resistance. By setting the direction of air supply and exhaust to be the same direction, the same pressure state of air supply and exhaust can be ensured, and good air supply and exhaust can be performed.

According to the fifth feature, when air supply and exhaust are performed on the side of the water heater main body, the front cover has an air supply opening provided on both sides in addition to the front surface. The air supply can be performed from one side of the water heater main body by closing the opening other than the opening on one side by the ventilation direction determining means. By closing one of the openings provided on both side ends of the exhaust cover attached to the front cover with the ventilation direction determining means, exhaust can be performed from one side of the water heater main body. Thus, from the above, according to the fifth feature, the front cover is used without being removed, and the exhaust cover is simply attached, thereby sufficiently suppressing the increase in bulk and securing the wind resistance. By setting the air supply and exhaust directions to be the same one direction, the same pressure state of the air supply and exhaust is ensured, and good air supply and exhaust can be performed.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. 1 to 7 show the first embodiment of the present invention.
It is a drawing concerning an embodiment. FIG. 1 is a water heater main body of a water heater, (A) is a front view, (B) is a left side view, and (C) is a plan view. FIG. 2 shows the exhaust cover of the hot water supply device, (A)
Is a front view, (B) is a left side view, and (C) is a plan view.
FIG. 3 is an air supply cover of the hot water supply device, (A) is a front view,
(B) is a left side view, and (C) is a plan view. FIG. 4 shows a state in which an air supply cover and an exhaust cover are attached to the water heater main body, (A) is a front view, (B) is a left side view,
(C) is a plan view. 5 is an enlarged cross-sectional view of a portion X in FIG. 4, FIG. 6 is an enlarged cross-sectional view of a portion Y in FIG. 4, and FIG. 7 is an enlarged cross-sectional view of a portion Z in FIG. 8 to 12 are drawings according to a second embodiment of the present invention. 8: is a water heater main body of a water heater, (A) is a front view, (B) is a left side view, (C) is a top view. 9A and 9B show an air supply cover of the hot water supply apparatus, wherein FIG. 9A is a front view, FIG. 9B is a left side view, and FIG. 9C is a plan view. FIG. 10 is an exhaust cover of the water heater, (A) is a front view,
(B) is a left side view, and (C) is a plan view. FIG. 11 shows a state in which an air supply cover and an exhaust cover are attached to the water heater main body, (A) is a front view, (B) is a left side view,
(C) is a plan view. FIG. 12 is an enlarged sectional view of a portion X in FIG. 11, and FIG. 13 is an enlarged sectional view of a portion Y in FIG.

First, a first embodiment will be described with reference to FIGS. In FIG. 1, a water heater main body 10 is provided therein with at least a combustion unit such as a burner and a heat exchanger for heat-exchanging and heating water passed through. A front cover 11 is attached to the front surface of the water heater main body 10, and a heating exhaust port 12 and a hot water supply exhaust port 13 are provided side by side in an upper portion of the front surface 11 a of the front cover 11. The heating and exhaust port 12 is connected to the water heater main body 1.
In the case of having a combustion unit used to circulate and heat the warm water for heating within 0, this is a port for exhausting exhaust gas generated by the combustion. The hot water supply / exhaust port 13 is a port for exhausting combustion exhaust gas generated in a combustion unit used for supplying water such as water supply by heat exchange heating. When the heating combustion section is not provided, the heating exhaust port 12 is not provided.
Further, the heating exhaust port 12 and the hot water supply exhaust port 13 may be one exhaust port. An air supply port 14 is provided in a portion of the front cover 11 slightly below the center of the front surface 11a. The air supply port 14 has a plurality of small holes.
The front cover 11 has a frame surface including left and right side surfaces 11b and 11c, an upper surface 11d, and a lower surface 11e in addition to the front surface 11a, and a flange portion 11f formed at an end of the frame surface.
Then, it is connected to the water heater main body 10 side with screws or the like.

Referring to FIG. 2, an exhaust cover 20 covers the heating exhaust port 12 and the hot water supply exhaust port 13 and has a substantially U-shaped cross section covering both sides thereof. Openings 21 provided at both ends of main body 21
a, 21a. The exhaust cover main body 21 has a length approximately equal to the width of the water heater main body 10. The vent direction determining means includes an open mouth 21 provided with a mesh-like vent hole.
b and a closure 21c for closing the opening 21a.
The mouthpieces 21b and 21c are used in pairs, one of which is connected to one opening 21a and the other of which is connected to the other opening 21a. Note that the closing member 21c may be a mere plate, and in short, the opening may be closed. The exhaust cover main body 21 has a fitting 2 attached to the water heater main body 10.
2, 23 are provided.

Referring to FIG. 3, air supply cover 30 covers air supply port 14 on front surface 11a of front cover 11 and also covers both side portions thereof, and has a width substantially equal to the width of water heater main body 10. The dimensions of The air supply cover 30 has a left side surface 30b, a right side surface 30c, an upper surface 30d, and a lower surface 30e as a frame, in addition to the front surface 30a that covers the air supply port 14 of the front cover 11 and the entire area below the air supply opening 14. The left side surface 30b and the right side surface 30c which are both end portions of the air supply cover 30
Are provided with openings 31, 31 each formed in a mesh shape. And, for this opening 31, there is provided a ventilation direction determining means for determining the ventilation direction. In the case of this embodiment, the ventilation direction determining means is attached to the inside of the right side surface 30c of the air supply cover 30, and is connected to the right side surface 30c.
And a closing member 32 for closing the opening 31 of the opening. The lower surface 3
0e is provided with a flange portion 30f that overlaps with the flange portion 11f of the front cover 11 and is screwed. In addition, the left side surface 30b and the right side surface 30c are respectively provided with mounting brackets 33, 33 for the water heater main body 10 from the upper position.

Since the exhaust cover 20 and the air supply cover 30 are mounted on the front cover 11 of the water heater main body 10, the air supply and exhaust air are supplied to one side of the water heater main body 10 as shown in FIG. The device to be performed is completed. The exhaust cover 20 and the air supply cover 30, for example, the left side opening 21a, 31 of the exhaust cover 20 and the air supply cover 30 is opened, and the right side opening 21a, 31 is closed, respectively, the water heater body 10 Attach to As a result, both exhaust and air supply can be performed on the same one side of the water heater main body 10, and good air supply and exhaust can be achieved by performing the exhaust and air supply in the same pressure zone. As shown in FIG. 5, the exhaust cover 20 is attached to the exhaust cover 2.
0 from the flange 11f on the upper surface 11d of the front cover 11.
Hooked on the flange 10f side of
As shown in FIG. 6, the side mounting bracket 23 of the exhaust cover 20 is hooked in a hook shape to the front end fitting portions of the left and right side surfaces 11 b and 11 c of the front cover 11 fitted to the water heater main body 10. This is done by fixing. To attach the air supply cover 30, the flange portion 30f on the lower surface of the air supply cover 30 is matched with the flange portion 11f of the front cover 11, and as shown in FIG. Left and right side surfaces 11b, 1 of the front cover 11 fitted to
Hook the tip fitting portion of 1c in a hook shape,
Further, the front cover 11 is provided at the flange portion 30f.
By using screws 34 or the like for the flange portion 11f.

Next, a second embodiment will be described with reference to FIGS. In FIG. 8, the water heater main body 50 is provided therein with at least a combustion unit such as a burner and a heat exchanger that heat-exchanges and heats water passing therethrough. A front cover 51 is attached to a front surface of the water heater main body 50, and an exhaust port 53 is provided in an upper part of a front surface 51a of the front cover 51 so as to protrude considerably. An air supply port 54 is provided at a portion slightly below the center of the front surface 51a of the front cover 51. The air supply port 5
Reference numeral 4 has a plurality of small holes. The front cover 51 includes left and right side surfaces 51b in addition to the front surface 51a.
51c, an upper surface 51d, and a lower surface 51e.
The flange portion 51f formed at the end of the frame surface is connected to the water heater main body 50 side with screws or the like.

First, referring to FIG. 9, in the present embodiment, the air supply cover 70 is formed so as to cover the entire front surface 51a of the front cover 51 including the air supply port 54 except for the exhaust port 53. I have. And the front surface 70a of the air supply cover 70
Is provided with a through hole 76 at a portion corresponding to the exhaust port 53. The air supply cover 70 includes a front surface 70a covering the front surface 51a of the front cover 51, a left side surface 70b, a right side surface 70c, an upper surface 70d, and a lower surface 70e as a frame.
Having. The left side surface 70b and the right side surface 70c, which are both end portions of the air supply cover 70, are provided with openings 71, 71 formed in a mesh shape, respectively. And this opening 71
For this, there is provided a ventilation direction determining means for determining the ventilation direction. In the case of this embodiment, the ventilation direction determining means
A closing member 7 attached to and coupled to the inside of the right side surface 70c of the air supply cover 70 to close the opening 71 of the right side surface 70c.
Consists of two. The lower surface 70e is provided with a flange portion 70f which is screwed by overlapping with the flange portion 51f of the front cover 51. An upper mounting bracket 73 for the water heater main body 50 is provided on the upper surface 70d,
The left side surface 70b and the right side surface 70c are provided with side mounting members 74, 74, respectively.

Referring to FIG. 10, an exhaust cover 60 covers the exhaust port 53 and has a substantially U-shaped cross section covering both sides thereof.
Has ventilation direction fixing means attached to the openings 61a provided at both side end portions. A connecting cylinder portion 62 that fits with the exhaust port 53 is provided on the substantially central rear surface of the exhaust cover main body 61. The exhaust cover main body 61 has a length substantially equal to the width of the water heater main body 50. The ventilation direction determining means includes an opening member 61b provided with a mesh-like ventilation hole, and a closing member 61c for closing the opening 61a. The mouthpieces 61b and 61c are used as a pair, one of which is connected to one opening 61a and the other of which is connected to the other opening 61a. In addition, closing mouthpiece 61
c may be a mere plate, and in short, the opening may be closed. The exhaust cover main body 61 is provided with a fitting 63 for attaching to the water heater main body 50.

Since the exhaust cover 60 and the air supply cover 70 are mounted on the front cover 51 of the water heater main body 50, the air supply and exhaust air are supplied to one side of the water heater main body 50 as shown in FIG. The device to be performed is completed. The exhaust cover 60 and the air supply cover 70 are, for example, in a state in which the left openings 61a and 71 of the exhaust cover 60 and the air supply cover 70 are opened, and the right openings 61a and 71 are closed, respectively. Attach to As a result, both exhaust and air supply can be performed on the same side of the water heater main body 50, and good air supply and exhaust can be achieved by performing the exhaust and air supply in the same wind pressure zone. First, the air supply cover 70 is attached. Air supply cover 7
0, the air supply cover 70 is attached to the front cover 51.
The exhaust port 53 is projected from the through hole 76, and the flange 70f of the lower surface 70e is aligned with the flange 51f of the front cover 51.
As shown in FIG. 2, the upper mounting bracket 7 of the air supply cover 70
3 is hooked on the front end fitting portion of the flange portion 51f of the upper surface 51d of the front cover 51 fitted to the water heater main body 50, and the side mounting bracket 74 of the air supply cover 70 is attached to the water heater main body. The front cover 51 is fitted to the flanges 51f of the left and right side surfaces 51b and 51c of the front cover 51, and the flange 5f of the front cover 51 at the flange 70f.
This is performed by bonding to 1f with a screw 77 or the like. Attachment of the exhaust cover 60
The connection cylinder 62 is fitted to the exhaust port 53, and the fitting 63 of the exhaust cover 60 is attached to the front cover 51 fitted to the water heater main body 50 as shown in FIG. Left and right side surfaces 51b, 51c
This is done by hooking and fixing to the fitting portion at the tip of. The mounting bracket 63 is directly engaged with the flange portion 51f of the front cover 51 through a cutout hole 74a provided in a part of the side mounting bracket 74 of the air supply cover 70, so that the coupling force is reduced. I'm trying to increase.

In the second embodiment, the air supply cover 70
Is provided with a through-hole 76 so that the exhaust port 53 protruding from the water heater main body 50 is further exposed to the outside of the air supply cover 70 and is covered with the exhaust cover 60, so that the bulk as a whole is high. Air supply and exhaust can be performed on the side without any problem. If you put the exhaust cover over the exhaust port,
Further, when the air supply cover is configured to cover the air supply cover from above, the overall volume becomes very high, and the protrusion from the wall surface becomes very large.

In the second embodiment, the air supply cover 70 and the exhaust cover 60 are formed separately and are attached to the water heater main body 50 by separate operations. As an embodiment, an air supply / exhaust cover in which the air supply cover 70 and the exhaust cover 60 are integrated in advance may be used.
The integration is performed, for example, by mounting the exhaust cover 60 on the front surface 70a of the air supply cover 70 in a state where the connection tubular portion 62 is inserted into the through hole 76 of the air supply cover 70, and fixing both of them by screwing or caulking, or It may be connected by spot welding or the like. In the air supply / exhaust cover configured in advance, the air supply cover 70 serves as an air supply cover, and the exhaust cover 60 serves as an exhaust cover. The functions of the air supply cover and the exhaust cover are the same as those of the air supply cover 70 and the exhaust cover 60 described above. In the third embodiment, it is difficult to hook the upper part in a hook shape when fixing the same.
What is necessary is just to couple with the 1st flange part 51f with the screw 78 etc. (refer FIG. 11).

In the second and third embodiments, the air supply cover of the air supply cover or the air supply / exhaust cover is attached from above the front cover of the water heater main body. Instead, an air supply cover or an air supply cover may be directly attached to the water heater main body. Such a configuration is also within the scope of the present invention.

Further, in the above embodiment, the air supply cover is provided separately from the front cover.
Using a front cover with air supply ports provided not only on the front but also on both sides, this front cover closes any two of the three places on the front and both sides, and only covers the other one. The air supply direction may be freely changed by combining ventilation direction determining means for ventilation. By combining such a front cover with the exhaust covers 20 and 60 used in the first and second embodiments, the volume is low and air supply and exhaust can be easily changed to the side. And a hot water supply device that can perform the hot water supply. The ventilation direction determining means of the front cover may be any means that can be closed, such as a closing plate that closes the opening. Further, the ventilation direction determining means is not necessarily limited to the configuration in which the closing plate is replaced, and for example, a part having a limited supply / exhaust direction such as right supply / exhaust and left supply / exhaust is prepared as an optional part. It may be used properly. Such a configuration is also within the scope of the present invention.

[0024]

According to the first aspect of the present invention, an exhaust port and an air supply port are separately opened on the front surface of a front cover of a water heater main body. An exhaust cover provided on the front cover so as to cover the exhaust port and both side portions thereof, thereby guiding exhaust gas coming out of the exhaust port to the side. Attached to the front cover separately from the exhaust cover to cover the air supply port and both sides thereof, thereby providing an air supply cover that guides air from the side to the air supply port, In addition, the exhaust cover and the air supply cover are each provided with a ventilation direction determining means for closing one of the openings provided on both side ends thereof and for venting the other, so that the water heater body Exhaust in front Even those provided with the air supply port and,
Hot water supply and exhaust can be performed on the same side of the water heater, and a hot water supply device with good wind pressure resistance can be provided according to installation conditions.
In particular, since the exhaust cover and the air supply cover are separately mounted, both can be mounted without overlapping, and the wind pressure resistance can be improved without increasing the volume of the hot water supply device. According to the hot water supply apparatus of the second aspect, an exhaust port configured to protrude forward from the front cover on the front surface of the front cover of the water heater main body, and an opening formed on the front surface of the front cover. A hot water supply device provided separately with an air supply port, which is attached to the front cover so as to cover the entire surface of the front cover except for a through hole through which the exhaust port penetrates. An air supply cover configured to guide the air supply port from the side, the exhaust port protruding from the air supply cover, and an air supply cover mounted on the air supply cover so as to cover both sides of the air supply port; An exhaust cover that guides exhaust gas coming out of the exhaust pipe to the side, and the exhaust cover and the air supply cover each have one of openings provided at both end portions thereof. Since the ventilating direction determining means for closing and venting the other air is provided, even if an exhaust port and an air supply port are provided on the front surface of the water heater main body, the air supply and exhaust is performed on the same side of the water heater. Can be performed, and a hot water supply device having good wind pressure resistance can be provided according to installation conditions. In particular, the exhaust cover and the air supply cover can be mounted low in height, and the wind pressure resistance can be improved without increasing the volume of the hot water supply device. According to the hot water supply apparatus of the third aspect, an exhaust port configured to protrude forward from the front cover on the front surface of the front cover of the water heater body, and an opening formed on the front surface of the front cover. A hot water supply device provided separately with an air supply port, which is attached to the front cover so as to cover the entire surface of the front cover except for a through hole provided for the exhaust port, thereby allowing air to flow. An air supply cover portion adapted to be guided to the air supply port from the side, and disposed on the air supply cover portion so as to cover the exhaust port protruding from the air supply cover portion and both side portions thereof, An exhaust cover unit that guides exhaust gas coming out of the exhaust port to the side by this is provided with an integrated supply / exhaust cover, and the exhaust cover unit and the air supply cover unit of the supply / exhaust cover Is The air supply cover has the same function and function as the air supply cover according to claim 2, since one of the openings provided at both side ends thereof is closed and ventilation direction determining means for ventilating the other is provided. And an exhaust cover that performs the same function as the exhaust cover according to claim 2 is formed as an integrated air supply and exhaust cover.
The air supply cover and the exhaust cover need not be attached to and detached from the water heater body one by one, and can be easily, easily, and efficiently attached by simply attaching one air supply / exhaust cover. Of course, it can be installed in a low bulk state, ensuring wind resistance, ensuring the same pressure state of air supply and exhaust by making the air supply and exhaust directions the same direction, and performing good air supply and exhaust. Can be. According to the hot water supply device of the fourth aspect, in addition to the effect of the configuration of the second or third aspect, the water supply unit of the air supply cover or the air supply / exhaust cover is replaced with a front cover, and the water heater main body. Since it is installed in the hot water supply device, in a state where the bulk of the whole hot water supply device is sufficiently suppressed,
By enabling air supply and exhaust from the side, wind resistance is ensured, and by setting the air supply and exhaust directions to the same direction, the same pressure state of air supply and exhaust is ensured, and good air supply and exhaust can be performed. it can. According to the hot water supply apparatus of the fifth aspect, the hot water supply apparatus is provided with an exhaust port and an air supply port opened on the front surface of the front cover of the water heater main body. Air supply ports are also formed on both sides, and on the other hand, they are mounted on the front cover so as to cover the exhaust port and both sides thereof, thereby exhaust gas coming out of the exhaust port is directed to the side. Provide an exhaust cover to guide,
Ventilation direction determining means for closing any two of the air supply ports provided at the three positions of the front surface and both side surfaces of the front cover and for ventilating only the other one position; The ventilation direction determining means for closing one of the openings provided in the portion and venting the other opening is provided, so that the exhaust cover is simply attached without removing the front cover. Therefore, it is possible to sufficiently suppress the increase in the volume, to secure the wind resistance, and to ensure the same pressure state of the air supply and exhaust by making the air supply and exhaust directions the same one direction. Exhaust can be performed.

[Brief description of the drawings]

FIG. 1 is a water heater main body of a water heater according to a first embodiment of the present invention, wherein (A) is a front view, (B) is a left side view, and (C).
Is a plan view.

FIG. 2 is an exhaust cover of the water heater according to the first embodiment, wherein (A) is a front view, (B) is a left side view, and (C) is a plan view.

FIG. 3 is an air supply cover of the water heater according to the first embodiment, wherein (A) is a front view, (B) is a left side view, and (C) is a plan view.

FIG. 4 shows a state in which an air supply cover and an exhaust cover are attached to a water heater main body in the water heater according to the first embodiment, (A) is a front view, (B) is a left side view,
(C) is a plan view.

FIG. 5 is an enlarged sectional view of a portion X in FIG. 4;

FIG. 6 is an enlarged sectional view of a Y part in FIG. 4;

FIG. 7 is an enlarged sectional view of a portion Z in FIG. 4;

8A is a front view, FIG. 8B is a left side view, and FIG. 8C is a plan view of the water heater main body of the water heater according to the second embodiment.

FIG. 9 is an air supply cover of the water heater according to the second embodiment, in which (A) is a front view, (B) is a left side view, and (C) is a plan view.

FIG. 10 is an exhaust cover of the water heater according to the second embodiment, wherein (A) is a front view, (B) is a left side view, and (C) is a plan view.

11 shows a state in which an air supply cover and an exhaust cover are attached to a water heater main body in the water heater according to the second embodiment, (A) is a front view, (B) is a left side view,
(C) is a plan view.

FIG. 12 is an enlarged sectional view of a portion X in FIG. 11;

FIG. 13 is an enlarged sectional view of a portion Y in FIG. 11;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Hot water supply main body 11 Front cover 12 Heating / exhaust port 13 Hot water supply / exhaust port 14 Air supply port 20 Exhaust cover 21 Exhaust cover main body 22 Upper mounting bracket 23 Side mounting bracket 30 Air supply cover 31 Opening 32 Closing fixture 33 Mounting bracket 34 Screw 50 Water heater main unit 51 Front cover 53 Exhaust port 54 Air supply port 60 Exhaust cover 61 Exhaust cover main body 62 Connection cylinder 63 Mounting bracket 70 Air supply cover 71 Opening 72 Closing member 73 Upper mounting bracket 74 Side mounting bracket 76 Through hole 77 Screw

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoshi Yamashita 93 Edo-cho, Chuo-ku, Kobe-shi, Hyogo F-term in Noritz Co., Ltd. 3L037 AC01

Claims (5)

[Claims] 1. A water heater in which an exhaust port and an air supply port are separately opened on a front surface of a front cover of a water heater main body, wherein the front cover covers the exhaust port and both side portions thereof. An exhaust cover which is mounted on the upper portion and thereby guides exhaust gas coming out of the exhaust port to the side, and a front cover which covers the air supply port and both sides separately from the exhaust cover. An air supply cover which is mounted on the upper surface and thereby guides air from the side to the air supply port, and wherein the exhaust cover and the air supply cover each have an opening provided at both end portions thereof. And a ventilating direction determining means for ventilating the other while closing one of them. 2. An exhaust port configured to protrude forward from the front cover on the front surface of the front cover of the water heater main body, and an air supply port configured to be opened on the front surface of the front cover separately. A hot water supply device provided, wherein the hot water supply device is attached to the front cover so as to cover the entire surface of the front cover except for a through hole through which the exhaust port penetrates, whereby air is supplied from the side to the air supply port. An air supply cover adapted to be guided, and an exhaust port protruding from the air supply cover and mounted on the air supply cover so as to cover both sides thereof, whereby exhaust gas coming out of the exhaust port is And an exhaust cover that leads to the
The exhaust cover and the air supply cover are each provided with a vent direction determining means for closing one of the openings provided at both side ends thereof and venting the other. . 3. An exhaust port configured to protrude forward from the front cover on the front face of the front cover of the water heater main body, and an air supply port configured to be opened on the front face of the front cover separately. A hot water supply device provided, wherein the hot water supply device is attached to the front cover so as to cover the entire surface of the front cover except for a through hole provided for the exhaust port, whereby air is supplied from the side to the air supply port. An air supply cover portion adapted to be guided, the exhaust port protruding from the air supply cover portion, and disposed on the air supply cover portion so as to cover both side portions thereof, thereby allowing the air outlet to come out of the exhaust port. An exhaust cover portion for guiding incoming exhaust gas to the side, an integrated air supply / exhaust cover is provided, and the exhaust cover portion and the air supply cover portion of the air supply / exhaust cover are respectively provided at both end portions thereof. A hot water supply device comprising: a ventilating direction determining means for closing one of the provided openings and venting the other. 4. The hot water supply apparatus according to claim 2, wherein the air supply cover portion of the air supply cover or the air supply / exhaust cover is attached to the water heater main body instead of the front cover. 5. A water heater in which an exhaust port and an air inlet are provided in front of a front cover of a water heater main body, and the front cover has air inlets on both sides in addition to the front. On the other hand, an exhaust cover is provided on the front cover so as to cover the exhaust port and both side portions thereof, thereby guiding exhaust gas coming out of the exhaust port to the side. And a ventilation direction determining means for closing any two of the air supply ports provided at three places on the front surface and both side surfaces of the front cover and allowing only the other one to vent, and both sides of the exhaust cover. A hot water supply device comprising: a ventilating direction determining unit that closes one of the openings provided at the end and vents the other opening.