TW202223308A - Combustion apparatus - Google Patents

Abstract

Provided is a combustion apparatus including: a casing main body having an exhaust cylinder protruding surface; and a front cover; a first inner flange portion is formed on an inner peripheral edge of a front opening on an exhaust cylinder protruding surface side of the casing main body so as to extend from a first front end portion of the exhaust cylinder protruding surface toward an inner side of the front opening; a second inner flange portion is formed on the inner peripheral edge of the front opening on the exhaust cylinder protruding surface side of the casing main body so as to extend from a second front end portion of the exhaust cylinder protruding surface toward the inner side of the front opening, wherein an open portion of a cutout portion formed on the exhaust cylinder protruding surface is interposed between the first and second inner flange portions; and a bridge member is fixed to the first and second inner flange portions so as to extend across the open portion of the cutout portion.

Description

burner

The present invention relates to a combustion device having an exhaust pipe which is inserted into a notch portion formed in the protruding surface of the exhaust pipe of a casing main body.

Generally, a combustion device such as a water heater has a combustion device main body, a casing body having a front opening portion open to the front, the casing main body accommodating the combustion device main body, and a front cover covering the front opening portion of the casing main body. In this type of combustion device, in order to discharge the combustion exhaust gas to the outside, by connecting the exhaust pipe and the exhaust pipe protruding upward from the top surface of the casing main body, a U-shaped notch opening to the front is formed in the The top surface of the casing main body is inserted, and the exhaust pipe is inserted into the notch portion (for example, Patent Document 1: Japanese Patent Laid-Open Publication No. 2010-038506A).

However, if the notch portion is formed on the top surface of the casing main body, the strength of the peripheral top surface of the notch portion is reduced. Therefore, when pressure is applied to the casing body from the outside of the package during transportation, the casing body is deformed. In particular, since the front end portion of the top surface of the casing main body is divided into left and right portions by the notch portion, deformation easily occurs.

In addition, in Patent Document 1, in order to cover the gap between the exhaust pipe and the front opening portion, the exhaust pipe cover is fastened to the top surface of the casing body around the cutout portion using screws from above. Since the strength of the top surface around the notch portion is reduced, when the exhaust cap is fastened to the top surface with screws from above, the top surface is bent downward, resulting in poor workability. In addition, if the exhaust pipe cover protrudes outward from the top surface of the casing body as in Patent Document 1, there is also a problem of poor appearance.

The present invention is made in order to solve the above-mentioned problems, and an object of the present invention is to improve the resistance to external pressure, the workability, and the appearance of a combustion device having an exhaust pipe. The exhaust cylinder is inserted into a notch portion formed on the protruding surface of the exhaust cylinder of the housing main body.

[Prior Technology Literature]

[licensed literature]

[Patent Document 1] Patent Publication 2010-038506A

The invention relates to a combustion device, which is composed of a combustion device main body, a casing main body, a front cover and an exhaust pipe. The casing main body has a front opening portion that opens forward, and can accommodate the combustion device main body. The front cover covers the front opening portion from the front. The exhaust pipe discharges combustion exhaust gas from the main body of the combustion device to the outside. Wherein, the housing main body includes a protruding surface of the exhaust cylinder, the protruding surface of the exhaust cylinder has a notch portion that is open to the front, and the exhaust cylinder is inserted through the notch portion.

A first inner flange portion is formed on the inner peripheral edge of the front opening portion of the protruding surface of the exhaust cylinder of the housing body to extend from the first front end portion of the protruding surface of the exhaust cylinder to the inside of the front opening portion, the The first front end portion is located on one side of the left-right direction of the notch portion.

A second inner flange portion is formed on the inner peripheral edge of the front opening portion of the protruding surface of the exhaust pipe of the housing body to extend from the second front end portion of the protruding surface of the exhaust pipe to the inside of the front opening portion. The second front end portion is located on the other side in the left-right direction of the notch portion, wherein the opening portion of the notch portion is disposed between the first and second inner flange portions.

A mounting member is fixed to the first and second inner flange portions so as to extend across the opening portion of the notch portion.

In the combustion device of the present invention, the front opening of the notch portion is provided between the first and second inner flange portions, and the mounting member extending across the front opening of the notch portion straddles the first and second inner flanges between parts. Therefore, the resistance to pressure from the outside of the housing main body can be improved. In addition, since the mounting member is fixed to the first and second inner flange portions, and the flexibility of the mounting member is smaller than that of the convex surface of the exhaust pipe, the workability can be improved. In addition, when the mounting member is fixed to the first and second inner flange portions and the front cover covers the front opening portion, the mounting member is provided between the housing body and the front cover. Therefore, the mounting member is not exposed to the outside, thereby enhancing the beauty.

In a preferred embodiment of the present invention, the mounting member is fixed at the fixed position of the first and second inner flange portions. The fixing position is located near the side surface of the housing body and is far from the opening of the notch in the left-right direction.

In the combustion device of the present invention, the mounting member is fixed to the first and second inner flange portions in the vicinity of the side surface of the casing main body, so that the resistance to pressure from the outside of the casing main body can be further improved. In addition, since the bendability of the first and second inner flanges in the vicinity of the side surface of the casing body is low, the workability can be further improved.

In a preferred embodiment of the present invention, when the front cover covers the front opening of the housing body, the mounting member is engaged with the front cover.

In the combustion device of the present invention, since the front cover is joined to the mounting member fixed to the first and second inner flange portions, the mounting member is connected to the first and second internal flanges when external pressure is applied to the projection surface of the exhaust pipe. The flange portion is supported by the front cover, further improving the resistance to external pressure from the housing body.

In a preferred embodiment of the present invention, the mounting member includes a fixing member and a bending member. The fixing member is fixed on the front surface of the first and second inner flange portions. When the mounting member is fixed to the front surface of the first and second inner flange parts, the bending piece is bent from the end of the fixing piece inside the front opening part to the first and second inner flange parts. Wherein, when the protruding surface of the exhaust pipe is pressurized from the outside, the bending member supports the first and second inner flange portions.

In the combustion device of the present invention, the strength of the mounting member can be improved. Also, even if pressure from the outside is applied to the bulging surface of the exhaust cylinder, the bent pieces of the mounting member support the first and second inner flange portions. This can further improve resistance to pressure from outside the housing body.

In a preferred embodiment of the present invention, the protruding surface of the exhaust pipe has a first step portion and a second step portion. The first step portion and the second step portion are respectively recessed toward the inner side of the housing body at opposite sides of the notch portion. The mounting member includes a covering portion. The covering portion extends rearward from the rear surface of the fixing member to cover the gap between the exhaust tube and the opening portion of the notch portion. At least a part of the periphery of the covering part can be combined with the first and second level difference parts.

In the combustion device of the present invention, since the first and second step portions are formed at opposite sides of the notch portion, the resistance to pressure from the outside of the casing body can be improved. In addition, a part of the periphery of the covering part extending backward from the rear surface of the fixing member is combined with the first and second step parts, so that the protruding surface of the exhaust pipe and the covering part can be formed as an approximately flush surface . Therefore, the appearance can be further improved.

Other objects, features and advantages of the present invention will be more fully understood from the detailed description given below and the accompanying drawings, which are given by way of illustration only and should not be considered limiting of the invention.

With the embodiment of the combustion device of the present invention and the accompanying drawings, the specific description is as follows.

As shown in FIG. 1 and FIG. 2 , the combustion device of the present embodiment is a heat transfer device that heats the water in the water heater 1 by the combustion exhaust gas generated by the burner 11 , and then the water flows to the heat exchanger 21 through the water supply pipe 71 . Pipe 23, and then supply hot water to a hot water supply terminal, such as a shower or a faucet (not shown), through a hot water supply pipe 72. However, in order to avoid complications, the combustion device main body 100 is omitted in FIGS. 2 to 5 .

The water heater 1 includes a housing 200 . The case 200 includes a case body 2 and a front cover 3. The casing main body 2 includes a front opening portion 210 that opens forward. The front cover 3 closes the front opening portion 210 of the housing body 2 . In the following description, the front opening of the casing body 2 corresponds to the front. Further, when viewed from the front, the depth direction of the housing body 2 corresponds to the front-rear direction, the lateral direction orthogonal to the front-rear direction corresponds to the left-right direction, and the height direction orthogonal to the front-rear direction corresponds to the up-down direction.

The casing main body 2 accommodates the combustion device main body 100. The combustion apparatus main body 100 includes a combustion chamber 10, a heat exchange chamber 20, an exhaust chamber 30, and a fan 50 provided on the left side of the exhaust chamber 30 in this order from below. The exhaust pipe 80 for discharging the combustion exhaust gas to the outside of the water heater 1 is connected to the top of the fan 50 , and the upper end of the exhaust pipe 80 is connected to an exhaust pipe (not shown).

The burner 11 is arranged below the combustion chamber 10. A gas supply pipe 70 for supplying gas is connected to the burner 11. The ignition electrode 12 and the flame rod 13 are arranged above the burner 11, and the distribution plate is arranged below the burner 11 (not shown). By means of the moving fan 50, the air in the casing 200 serving as combustion air is supplied to the burner 11 through the distribution plate. By activating the ignition electrode 12, the combustion gas is ignited to generate combustion exhaust gas. The combustion exhaust gas injected from the burner 11 is sent to the heat exchange chamber 20. Next, the exhaust gas passed through the exhaust chamber 30 and the combustion of the fan 50 is discharged from the exhaust pipe 80 to the outside of the water heater 1.

The heat exchange chamber 20 is an approximately rectangular box-shaped casing with upper and lower openings. The lower end of the heat exchange chamber 20 is connected to the upper end of the combustion chamber 10, and the upper end of the heat exchange chamber 20 is connected to the lower end of the exhaust chamber 30. The heat exchange chamber 20 accommodates the heat exchanger 21. The heat exchanger 21 recovers the heat in the combustion exhaust gas generated by the burner 11 , and heats the water supplied from the water supply pipe 71 . The heat exchanger 21 includes a plurality of heat transfer fins 22 and a plurality of heat transfer tubes 23 passing through the heat transfer fins 22. The heat transfer tubes 23 extend in the heat exchange chamber 20 in a curved or helical shape. One end of the heat transfer pipe 23 is connected to the water supply pipe 71, and the other end of the heat transfer pipe 23 is connected to the hot water supply pipe 72. In addition to water, other thermal media (eg, antifreeze) can also be used.

The fan 50 includes a fan casing 53 that accommodates the impeller 51 and a motor 52 that drives the impeller 51 to rotate. The fan casing 53 has a suction port 54 opened to one side surface. When the fan 50 is disposed in the exhaust chamber 30, the suction port 54 communicates with the discharge port 33 opened on the left side wall of the exhaust chamber 30. The upper end portion of the fan casing 53 has an exhaust port (not shown) that opens upward. When the lower end of the exhaust pipe 80 is connected to the upper end portion of the fan housing 53, the exhaust port and the exhaust pipe 80 are communicated.

The shell body 2 is a rectangular box body formed by metal plate. The housing body 2 includes a top surface 201, a rear surface 202, a left side surface 203, a right side surface 204, and a lower surface 205. The protruding surface of the exhaust pipe is the top surface 201 , the rear surface 202 extends downward from the rear end portion of the top surface 201 , the left side surface 203 extends downward from the left end portion of the top surface 201 , and the right side surface 204 extends downward from the right end portion of the top surface 201 . , the lower surface 205 is connected to the lower end of the rear surface 202 , the lower end of the left side surface 203 and the lower end of the right side surface 204 .

The U-shaped notch portion 220 is formed at almost the center portion of the top surface 201 of the casing body 2 in the left-right direction. The notch portion 220 is open to the front, and extends to an almost central portion of the top surface 201 in the front-rear direction. When the combustion device main body 100 is accommodated in the casing main body 2 , the exhaust pipe 80 is inserted into the cutout portion 220 from the front, and the upper portion of the exhaust pipe 80 protrudes upward from the top surface 201 . On the inner periphery of the front opening portion 210 of the housing body 2, and on almost the entire periphery except for the opening portion 221 of the notch portion 220, the front end portion of the top surface 201, the front end portion of the left side surface 203, and the front end portion of the right side surface 204 are divided by And the front opening part 210 of the front end part of the lower surface 205 is folded inward to form the inner flange part 230 of the upper, lower, left and right sides.

As shown in FIG. 3 , a first step portion 223 and a second step portion 224 are respectively formed at the left and right sides of the notch portion 220 of the top surface 201 opposite to each other. The first and second step portions 223 and 224 are recessed downward from the front end portion of the top surface 201 to almost the center portion of the cutout portion 220 in the front-rear direction. In addition, a first slit hole 225 and a second slit hole 226 are individually formed in the front-rear direction at an intermediate portion between the first and second level difference portions 223 and 224 . The first slit hole 225 penetrates the first level difference portion 223 , and the first slit hole 225 extends in the front-rear direction. The second slit hole 226 penetrates the second level difference portion 224 , and the second slit hole 226 extends in the front-rear direction.

Although not shown, the lower surface 205 of the casing body 2 has screw holes. The function of the screw hole is to fasten the lower part 305 of the outer peripheral side plate 310 of the front cover 3 and the casing body 2 by screws when the front cover 3 closes the front opening part 210 . The front cover 3 will be explained later.

The upper inner flange part 230 extending downward from the front end part of the top surface 201 is divided into an upper left inner flange part 231 (hereinafter referred to as the first inner flange part 231) located on the left side of the opening part 221 of the notch part 220; The upper right inner flange portion 232 (hereinafter referred to as the second inner flange portion 232) on the right side of the opening portion 221 of the notch portion 220 is formed. That is, the opening portion 221 of the notch portion 220 is provided between the first inner flange portion 231 and the second inner flange portion 232 . The first inner flange portion 231 extends downward from the left front end portion of the top surface 201 (the left front end portion of the top surface 201 is the first front end portion, which is also the curved portion between the first inner flange portion 231 and the top surface 201 ) . The second inner flange portion 232 extends downward from the right front end portion of the top surface 201 (the right front end portion of the top surface 201 is the second front end portion, which is also the curved portion between the second inner flange portion 232 and the top surface 201 ) . The first inner flange portion 231 has a first screw hole 241 for fixing the mounting member 400 . The predetermined first fixing position is located close to the left side surface 203 of the housing main body 2 and away from the opening portion 221 of the notch portion 220 . The mounting member 400 will be described later. In addition, the second inner flange portion 232 has a second screw hole 242 for fixing the mounting member 400 at a predetermined second fixing position. The predetermined second fixing position is located close to the right side surface 204 of the housing main body 2 and away from the opening portion 221 of the notch portion 220 . The first inner flange portion 231 has a first cutout portion 243 . The first cutout portion 243 is located at the inner side of the first screw hole 241 in the left-right direction, and the lower end of the first cutout portion 243 is cut shallowly upward. Also, the second inner flange portion 232 has a second cutout portion 244 . The second cutout portion 244 is located at the inner side of the second screw hole 242 in the left-right direction, and the lower end of the second cutout portion 244 is cut shallowly upward.

As shown in FIGS. 2 to 6 , the mounting member 400 is detachable and mounted on the front surfaces of the first and second inner flange portions 231 and 232 . The mounting member 400 is formed by molding a metal plate. The mounting member 400 includes a fixing member 410, a holding member 440, and a covering portion 470. The fixing member 410 is extended in the left-right direction, the holder 440 is extended in the left-right direction, and the holder 440 extends obliquely forward and upward from the slightly inner side of the lower end of the fixing member 410 in the left-right direction, and the covering portion 470 extends from the fixing member 470 The central part in the left-right direction of the upper end of the member 410 extends rearward approximately horizontally. The fixing member 410 has a first screw insertion hole 411 and a second screw insertion hole 412 at both ends in the left and right direction. The positions of the first and second screw insertion holes 411 and 412 respectively correspond to the positions of the first and second screw holes 241 and 242 of the first and second inner flange portions 231 and 232 . The length in the left-right direction of the fixing member 410 is set to be almost equal to the length from the left end of the first inner flange portion 231 to the right end of the second inner flange portion 232. Further, the height of the fixing member 410 is set to be almost equal to the height of the first and second inner flange portions 231, 232. Therefore, when the fixing member 410 is fixed to the first and second inner flange portions 231, 232, the fixing member 410 is disposed on almost the entire front surface of the first and second inner flange portions 231, 232, so that the fixing member 410 may extend across the opening portion 221 of the notch portion 220 .

The mounting member 400 has a first engagement hole 413 and a second engagement hole 414. The first and second engagement holes 413, 414 are respectively located near both ends of the joint portion between the fixing member 410 and the holding member 440 in the left and right directions, and at the inner side of the first and second screw insertion holes 411, 412 in the left and right directions. Moreover, the mounting member 400 has a first bending piece 415 and a second bending piece 416 . The first and second bending pieces 415, 416 are formed by cutting and lifting a part of the holding piece 440 from the lower end of the fixing piece 410 to the rear. The first and second bending pieces 415 and 416 are respectively formed at the inner side in the left-right direction of the first and second engaging holes 413 and 414 . Therefore, the holder 440 has the first machining hole 441 and the second machining hole 442 . The first and second processing holes 441 and 442 are opened from the base ends of the first and second bending pieces 415 and 416 to almost the center of the holder 440 in the up-down direction. When the retainer 440 is fixed to the first and second inner flange parts 231 and 232 , the upper surfaces of the first and second bending parts 415 and 416 are almost close to the first and second parts near the front edge of the notch part 220 from below. The lower ends of the inner flange parts 231 and 232.

When the covering part 470 is inserted into the notch part 220, a part of the peripheral edge of the covering part 470 is joined to the first and second step parts 223 and 224 from above. The rear end of the covering portion 470 is cut forward into an approximately semicircular shape. In addition, the covering part 470 has a pair of first inserts 471 and second inserts 472 at the left and right rear ends of the covering part 470 . The first and second inserts 471 and 472 are inserted into the first and second slit holes 225 and 226 of the first and second level difference portions 223 and 224 . It can be seen from the above-mentioned structures of the fixing member 410 and the covering portion 470 that when the first and second inserting members 471 and 472 are respectively inserted into the first and second slit holes 225 and 226, the rear surface of the fixing member 410 will almost touch the first and second interiors. The front surfaces of the flange parts 231 and 232.

The front cover 3 is a tray body, which is formed by molding a metal plate. The front cover 3 is opened to the rear. The front cover 3 includes a cover body 300 having a substantially rectangular shape, and an outer peripheral side plate 310 extending from the entire periphery of the cover body 300 to the rear. The outer peripheral side plate 310 of the front cover 3 is coupled to the outer periphery of the front end of the housing main body 2 . The front opening portion 210 is closed by the front cover 3 .

On the slightly inner side in the left-right direction of both end portions of the upper portion 301 of the outer peripheral side plate 310 of the front cover 3, the upper portion 301 is cut forward. Moreover, the front cover 3 has the attachment 330 . The attachment 330 is elongated in the left-right direction, and extends from the upper portion 301 to the front and rear of the notch, to the rear end portion, and downward. In addition, the front cover 3 has a first engaging member 331 and a second engaging member 332 near both ends of the attachment member 330 in the left-right direction. The first and second engaging members 331 and 332 extend obliquely downward and rearward from the lower end of the attachment member 330 . When the front cover 3 is installed on the housing body 2 , the first and second engaging members 331 and 332 are respectively inserted into the aforementioned first and second engaging holes 413 and 414 located near both ends of the mounting member 400 in the left-right direction from the front. It can be seen from the structure of the front cover 3 that when the first and second engaging members 331 and 332 are respectively inserted into the first and second engaging holes 413 and 414 , the rear surface of the attachment member 330 will almost contact the front surface of the fixing member 410 of the mounting member 400 . And the first and second joint members 331 and 332 are located below the first and second cutout portions 243 and 244 of the first and second inner flange portions 231 and 232 .

Although not shown, the front cover 3 has lower screw insertion holes at both end portions in the left and right direction of the lower portion 305 of the outer peripheral side plate 310 . The positions formed by the lower screw insertion holes correspond to the positions of the aforementioned screw holes on the lower surface 205 of the housing main body 2.

Next, the installation member 400 of the water heater 1 and the installation method of the front cover 3 according to the embodiment of the present invention will be described. As shown in Figs. 2 and 3 , the combustion apparatus main body 100 is accommodated in the casing main body 2 through the opening portion 210. In a state where the upper portion of the exhaust pipe 80 protrudes upward from the cutout portion 220 of the top surface 201 , the cover portion 470 of the attachment member 400 is inserted into the cutout portion 220 from the front. Then, the first and second inserts 471 and 472 located at the left and right rear ends of the covering portion 470 are respectively inserted into the first and second slit holes 225 and 226 located at the first and second level difference portions 223 and 224 . As shown in FIG. 4 , this causes a part of the periphery of the covering part 470 to be combined with the first and second step parts 223 and 224 . Also, the first and second inserts 471 , 472 abut against the inner surface (ie, the lower surface) of the top surface 201 , and the mounting member 400 is temporarily fixed to the top surface 201 . In addition, the rear surface of the fixing member 410 of the mounting member 400 almost touches the front surfaces of the first and second inner flange portions 231 and 232.

Next, the fixing screws S1 and S2 are respectively inserted into the first and second screw insertion holes 411 and 412 located in the vicinity of both ends of the fixing member 410 in the left-right direction from the front. Further, the fixing screws S1 and S2 are respectively tightened to the first and second screw holes 241 and 242 located near both ends of the first and second inner flange parts 231 and 232 in the left and right directions. This results in that the mounting member 400 extending across the opening portion 221 of the notch portion 220 is fixed to the first and second inner flange portions 231 , 232 . At this time, the first and second bending pieces 415, 416 bent backward extend from the lower end of the fixing piece 410 to the first and second inner flange portions 231, 232. Therefore, the first and second bending members 415, 416 are respectively almost abutted from below, and the lower ends of the first and second inner flange portions 231, 232 near the left and right front edges of the notch portion 220 (refer to FIG. 5).

As described above, in a state where the mounting member 400 is fixed to the first and second inner flange portions 231 and 232, the first and second joints 331 and 332 are slightly inserted into the first and second portions of the mounting member 400 from above and from the front. engaging holes 413 and 414 , and the first and second engaging members 331 and 332 are engaged with the first and second engaging holes 413 and 414 . The first and second engaging members 331 and 332 are formed at the attachment member 330 extending downward from the upper portion 301 of the outer peripheral side plate 310 of the front cover 3 . However, since the first and second engaging members 331 and 332 extending backward are inserted into the first and second engaging holes 413 and 414 , the first and second engaging members 331 and 332 are respectively disposed in the first and second cutout portions 243 and 414 , respectively. 244 (see Figure 5).

Next, the outer peripheral side plate 310 of the front cover 3 is coupled to the outer periphery of the front end of the housing main body 2 . Although not shown, fixing screws are inserted into the lower screw insertion holes located at the lower side portion 305 of the outer peripheral side plate 310 of the front cover 3 from below. And the fixing screw is fastened to the screw hole located on the lower surface 205 of the casing main body 2, so as to fix the front cover 3 to the casing main body 2.

According to the present embodiment, the opening portion 221 of the cutout portion 220 is disposed between the first and second inner flange portions 231, 232, and the mounting member 400 extending across the opening portion 221 of the cutout portion 220 spans the first and second interior portions Between the flange parts 231 and 232 . Therefore, the top surface 201 near the front edge of the notch portion 220 is reinforced by the mounting member 400, and the resistance to pressure from above can be improved. Also, the fixing member 410 of the mounting member 400 is fixed to the front surfaces of the first and second inner flange portions 231 and 232 of the left and right side surfaces 203 and 204 of the housing body 2 near the opening portion 221 of the notch portion 220 and farther away. Since the left and right side surfaces 203, 204 have high resistance to pressure from above, even if the top surface 201 is pressed downward, the downward displacement of the mounting member 400 can be suppressed, and the resistance to pressure from above can be further improved . The attachment member 400 is arranged in front of the opening portion 221 of the cutout portion 220, and the attachment 330 of the front cover 3 is arranged in front of the front surface of the fixing member 410 of the attachment member 400. Therefore, the resistance to pressure from the front can also be improved. With this configuration, deformation of the housing main body 2 can be prevented.

Also according to the present embodiment, the attachment member 400 is fixed from the front to the first and second inner flange portions 231 and 232, which are less flexible in the front-rear direction. Therefore, compared with the related art in which the exhaust pipe cover is fixed from above to the top surface 201 which is greatly curved in the up-down direction, the present invention has more workability.

Also according to the present embodiment, in a state where the mounting member 400 is fixed to the front surfaces of the first and second inner flange portions 231 and 232 , the front opening portion 210 is covered by the front cover 3 . Therefore, the holding member 440 and the fixing member 410 provided between the casing main body 2 and the front cover 3 are not exposed to the outside. This can enhance the aesthetics. In addition, a part of the periphery of the covering part 470 of the mounting member 400 is joined to the first and second step parts 223 and 224 formed at the side of the notch part 220 . Therefore, the top surface 201 and the outer surface of the covering portion 470 can be formed to be approximately flush. With this configuration, the appearance can be further improved. Note that the exhaust pipe protrusion may be changed according to the position of the exhaust pipe of the main body of the combustion device. For example, the lower surface of the housing main body may be formed with a protruding surface of the exhaust pipe having a notch portion. In addition, the position of the notch portion 220 may be formed at a center portion in the left-right direction that is deviated from the left-right direction of the protruding surface of the exhaust pipe.

According to this embodiment, when the front opening 210 of the housing body 2 is covered by the front cover 3 , the first and second engaging members 331 and 332 are respectively engaged with the first and second engaging holes 413 and 414 of the mounting member 400 . The first and second joint members 331 and 332 extend downward from the lower end of the attachment member 330 formed at the upper end of the front cover 3 , and the mounting member 400 is fixed to the first and second inner flange portions 231 and 232 . Therefore, even when pressure is applied to the top surface 201 from above, the first and second engaging pieces 331, 332 of the front cover 3 support the fixing pieces 410 of the mounting member 400 from below. In addition, because the fixing member 410 is supported by the front cover 3 and the fixing member 410 is fixed to the first and second inner flange parts 231 and 232 , the first and second inner flange parts 231 and 232 are also supported by the front cover 3 . The first and second engaging pieces 331, 332 are supported from below. This further increases the resistance to pressure from above. In addition, when the front cover 3 is joined to the attachment member 400 , the holder 440 of the attachment member 400 is arranged in front of the attachment 330 of the front cover 3 . Therefore, the resistance to pressure from the front can be further improved. With this configuration, deformation of the housing main body 2 can be further prevented.

Also according to this embodiment, the mounting member 400 includes a fixing member 410, a holding member 440, and first and second bending members 415 and 416. The holder 440 extends obliquely upward and forward from the lower end of the fixing member 410, and the first and second bending members 415 and 416 are bent rearward from the joint portion between the fixing member 410 and the holder 440, so the mounting member 400 has high strength. Then, the first and second bent pieces 415, 416 of the mounting member 400 are supported from below, and the lower ends of the first and second inner flange portions 231, 232 near the front edge of the notch portion 220 are supported. Therefore, even when pressure is applied to the top surface 201 from above, the first and second bending pieces 415, 416 inhibit downward displacement of the first and second inner flange portions 231, 232. With this configuration, the resistance to pressure from above can be further improved, and the deformation of the housing main body 2 can be further prevented.

Also according to the present embodiment, on the top surface 201 of the housing main body 2 , first and second step portions 223 and 224 recessed downward are formed on the sides of the notch portion 220 . This can increase the strength of the top surface 201 . Also, when the fixing member 410 of the mounting member 400 is fixed on the front surfaces of the first and second inner flange parts 231 and 232 , the first and second inserts 471 and 472 located at the rear end of the covering part 470 abut against the top surface 201 . The inner surface. With this configuration, deformation of the housing main body 2 can be further prevented.

As described above, according to the present embodiment, the combustion device of the present invention has better resistance to external pressure, and has better workability and aesthetics.

According to the present embodiment described above, the mounting member is fixed to the front surface of the first and second inner flange portions. However, according to the present invention, the mounting member may also be fixed to the rear surface of the first and second inner flange portions. At this time, the cover portion extending rearward from the fixing member is arranged below the notch portion, and the lower ends of the first and second inner flange portions are supported from below by the connecting portion between the fixing member and the holder.

According to the present embodiment described above, the front cover has the engaging member, and the mounting member has the engaging hole. However, according to the present invention, as long as the front cover can be engaged with the mounting member, the engaging structure is not limited to this. For example, the front cover may have engagement holes, and the mounting member may have engagement pieces.

The present invention has been disclosed above with preferred embodiments, however, those skilled in the art should understand that the embodiments are only used to describe the present invention, and should not be construed as limiting the scope of the present invention. It should be noted that all changes and modifications equivalent to this embodiment should be considered to be covered within the scope of the present invention.

1: Combustion device 2: shell body 3: Front cover 10: Combustion chamber 11: Burner 12: Ignition electrode 13: Flame Rod 20: Heat Exchange Room 21: Heat Exchanger 22: heat transfer sheet 23: Heat transfer tube 30: Exhaust Chamber 33: release port 50: Fan 51: Impeller 52: Motor 53: Fan housing 54: Suction port 70: Air supply pipe 71: Water supply pipe 72: Hot water supply pipe 80: Exhaust tube 100: Main body of combustion device 200: Shell 201: Exhaust tube convex surface, top surface 202: Back Surface 203: Left side 204: Right side 205: lower side 210: Front opening 220: Gap 221: Opening part 223: The first stage difference 224: Second stage difference 225: First crack hole 226: Second crack hole 230: Internal flange part 231: The first inner flange part 232: Second inner flange part 241: The first screw hole 242: Second screw hole 243: First incision site 244: Second incision site 300: Cover body 301: Upper part 305: Lower part 310: Peripheral side plate 330: Accessories 331: The first joint 332: Second joint 400: Installation components 410: Fixtures 411: The first screw insertion hole 412: Second screw insertion hole 413: first engagement hole 414: Second engagement hole 415: First Bending Piece 416: Second bending piece 440: Holder 441: The first machined hole 442: Second machining hole 470: Covering parts 471: First Insert 472: Second Insert S1, S2: fixing screws

FIG. 1 is a schematic structural diagram according to an embodiment of the present invention. 2 is a schematic perspective view of the combustion device after removing the front cover of the combustion device according to an embodiment of the present invention. FIG. 3 is a schematic partial perspective view of the combustion device before installing the mounting member to the housing body according to the embodiment of the present invention. 4 is a schematic partial perspective view of the combustion device after installing the mounting member to the casing body according to the embodiment of the present invention. 5 is a schematic partial cross-sectional perspective view of a combustion apparatus depicted in accordance with an embodiment of the present invention. 6 is a schematic perspective view of a mounting member of a combustion device according to an embodiment of the present invention.

2: shell body

3: Front cover

80: Exhaust tube

200: Shell

201: Exhaust tube convex surface, top surface

203: Left side

204: Right side

205: lower side

210: Front opening

220: Gap

221: Opening part

230: Internal flange part

231: The first inner flange part

232: Second inner flange part

300: Cover body

301: Upper part

305: Lower part

310: Peripheral side plate

330: Accessories

331: The first joint

332: Second joint

Claims (5)

A combustion device, comprising: a main body of a combustion device; a housing main body, which has a front opening part open to the front, and can accommodate the main body of the combustion device; a front cover covering the front opening from the front; an exhaust pipe, which discharges the combustion exhaust gas in the main body of the combustion device to the outside, wherein the casing main body includes an exhaust pipe protruding surface with a notch part, the notch part is open to the front, and the exhaust pipe passes through the notch site insertion; a first inner flange portion formed on the inner peripheral edge of the front opening portion of the protruding surface of the exhaust pipe of the housing body to extend from the first front end portion of the protruding surface of the exhaust pipe to the inside of the front opening portion, The first front end portion is located on one side of the left-right direction of the notch portion; A second inner flange portion is formed on the inner peripheral edge of the front opening portion of the protruding surface of the exhaust cylinder of the housing body to extend from the second front end portion of the protruding surface of the exhaust cylinder to the inside of the front opening portion, The second front end portion is located on the other side in the left-right direction of the notch portion, wherein the opening portion of the notch portion is disposed between the first and second inner flange portions; and A mounting member is secured to the first and second inner flange portions to extend across the opening portion of the notch portion. The combustion device of claim 1, wherein the mounting member is fixed at a fixed position of the first and second inner flange portions; the fixed position is located near the side surface of the casing body and away from the notch in the left-right direction part of the opening. The combustion device of claim 1, wherein the mounting member and the front cover are engaged with the front cover when the front opening portion of the casing body is covered by the front cover. The combustion device of claim 1, wherein the mounting member includes: a fixing member fixed to the front surface of the first and second inner flange parts; and a bending piece, when the mounting member is fixed on the front surface of the first and second inner flange parts, the bending piece is bent from the end of the fixing piece inside the front opening part to the first and second inner flange parts, Wherein, when the protruding surface of the exhaust pipe is pressed from the outside, the bending member supports the first and second inner flange parts. The combustion device according to claim 4, wherein the protruding surface of the exhaust pipe has a first step portion and a second step portion recessed toward the inner side of the casing body at the opposite sides of the notch portion; the mounting member comprises: , the cover part of the rear surface of the fixing piece that extends backward to cover the gap between the exhaust pipe and the opening part of the notch part; the first and second step difference parts and the covering part, at least a part of the covering part The peripheral edge is combined with the first and second level difference parts.

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