JP7185825B2 - Hot water storage water heater - Google Patents

Description

TECHNICAL FIELD The present invention relates to a hot water storage and hot water supply apparatus including a heat source machine and a hot water storage tank.

Generally, a hot water storage and hot water supply apparatus, which is often installed outdoors, is protected by an exterior case so that the internal devices are protected from rainwater. The exterior case is formed by fixing flat exterior plates to the top surface and four side surfaces of a substantially rectangular parallelepiped frame member configured by combining a plurality of struts and a plurality of crosspieces, as in Patent Document 1, for example. be done. In such an exterior case, the strength of the flat exterior plate is supplemented by fastening and fixing the exterior plate in close contact with the frame member with screws or the like.

In some cases, the outer case is formed with unevenness on the outer plate in order to meet the requirements for the appearance design and to improve the strength of the outer plate. At this time, in the exterior case of Patent Document 1, for example, the end region of the exterior plate abuts against the frame member of the exterior plate. The plate cannot be recessed. In order to recess the portion of the exterior plate that contacts the frame member, it is necessary to cut the frame member so that the recessed portion of the exterior plate can be received.

JP 2014-185821 A

However, if the portion of the exterior plate that contacts the frame member is not recessed, the external design is restricted. On the other hand, when the frame member is notched, the strength of the frame member is reduced, so that the strength of the exterior case is reduced. When the recessed portion of the exterior plate is brought into contact with the frame member without notching the frame member, a gap is formed between the frame member and the portion of the exterior plate other than the recessed portion, thereby supplementing the strength of the exterior plate. Can not.

SUMMARY OF THE INVENTION An object of the present invention is to provide a hot water storage and hot water supply apparatus having a frame member that allows recessing of an exterior plate and suppresses a decrease in the strength of an exterior case.

The hot water storage and hot water supply apparatus of the invention of claim 1 comprises an exterior case in which a plurality of exterior plates are fixed to a frame member configured by combining a plurality of struts and a plurality of crosspieces, a hot water storage tank in the exterior case, and auxiliary equipment. and a hot water storage and hot water supply apparatus provided with piping, wherein at least one of the exterior plates has a projection projecting inward of the exterior case, and a plurality of the struts or crosspieces are provided at portions corresponding to the projections. It is characterized by having a recess recessed into the inside of the exterior case.

According to the above configuration, since the frame member is provided with the concave portion which is recessed inward of the exterior case so as to correspond to the convex portion of the exterior plate which protrudes inward of the exterior case, the exterior plate which protrudes inward of the exterior case is provided. The protrusion, that is, the recess of the exterior plate can be allowed, and the reduction in the strength of the exterior case can be suppressed.

In the hot water storage and hot water supply apparatus of the invention of claim 2, in the invention of claim 1, the strut or the crosspiece includes a main wall portion with which the exterior plate having the convex portion abuts, and a widthwise direction of the main wall portion. One end portion has a side wall portion extending inwardly of the exterior case over the longitudinal direction thereof, and the concave portion is located at a portion corresponding to the convex portion at the corner formed by the main wall portion and the side wall portion. A slit extending in a direction is provided, and a portion of the main wall portion having the slit is recessed into the interior of the exterior case.

According to the above configuration, the strut or crosspiece that constitutes the frame member has a main wall portion with which the exterior plate abuts, and a side wall portion that extends inward from the exterior case from one lateral end thereof. The concave portion of the frame member has a slit at a portion corresponding to the convex portion at the corner formed by the main wall portion and the side wall portion, and is formed by recessing the slit portion of the main wall portion into the interior of the exterior case. It is Therefore, since the recessed portion is composed of the main wall portion and the side wall portion that are continuous in the longitudinal direction of the strut or crosspiece and are not divided in the longitudinal direction, the strength of the recessed portion of the strut or crosspiece is ensured by the main wall portion and the side wall portion. A decrease in the strength of the exterior case can be suppressed.

In the hot water storage and hot water supply apparatus of the invention of claim 3, in the invention of claim 2, the strut or the crosspiece extends toward the inside of the exterior case over the other end of the main wall in the width direction and in the longitudinal direction. It has another side wall portion extending, and the concave portion is located at a portion corresponding to the convex portion of a pair of corners formed by the main wall portion and the pair of side wall portions at both ends in the width direction of the main wall portion. A pair of slits extending in the longitudinal direction are provided, and a portion of the main wall portion between the pair of slits is recessed into the exterior case.

According to the above configuration, the struts or crosspieces that constitute the frame member have main wall portions with which the exterior plate abuts, and a pair of side wall portions that extend inward from the exterior case from both lateral ends thereof. The concave portion of the frame member has a pair of slits at portions corresponding to the convex portions at the pair of corners formed by the main wall portion and the pair of side wall portions, and between the pair of slits in the main wall portion. is recessed into the exterior case. Therefore, since the recessed portion is composed of the main wall portion and the pair of side wall portions that are continuous in the longitudinal direction of the support or crosspiece and is not divided in the longitudinal direction, the recess of the support or crosspiece is formed by the main wall portion and the pair of side wall portions. It is possible to secure the strength in the case and suppress the deterioration of the strength of the exterior case.

According to a fourth aspect of the invention, there is provided a hot water storage and hot water supply apparatus according to the second or third aspect, wherein the slit is formed in a trapezoidal shape and has a pair of bottoms parallel to the longitudinal direction. is longer than the bottom of the side wall.

According to the above configuration, the main wall portion and the side wall portions that are gently bent by the recess ensure the strength of the recessed portion of the strut or crosspiece, thereby suppressing a decrease in the strength of the exterior case.

According to the hot water storage and hot water supply apparatus of the present invention, it is possible to allow the recess of the exterior plate and to suppress the deterioration of the strength of the exterior case.

1 is a perspective view showing a main part of a hot water storage and hot water supply apparatus according to an embodiment of the present invention; FIG. FIG. 2 is a side view of a support on the left side of an exterior case of the hot water storage and hot water supply apparatus of FIG. 1 as seen from the left side of the hot water storage and hot water supply apparatus; FIG. 3 is a cross-sectional view of the strut of FIG. 2 taken along line III-III. FIG. 3 is a cross-sectional view taken along line IV-IV of the recess of the post of FIG. 2; FIG. 3 is a view of the concave portion of the column in FIG. 2 as viewed from the front side of the hot water storage and hot water supply apparatus; FIG. 6 is an exploded view of the area containing the recess of the post of FIG. 5; FIG. 4 is a perspective view showing an example of a crosspiece provided with recesses;

EMBODIMENT OF THE INVENTION Hereinafter, the form for implementing this invention is demonstrated based on an Example.

First, the hot water storage and hot water supply device 1 will be described.
As shown in FIG. 1, a hot water storage and hot water supply apparatus 1 includes a hot water storage tank 2 for storing hot water, auxiliary equipment such as a combustion-type auxiliary heat source device 3, and piping (not shown) such as a water supply passage and a hot water supply passage. It is configured to be housed in a case 4 . In the drawing, an arrow F indicates the front of the hot water storage/heating device 1 , an arrow L indicates the left side of the hot water storage/heating device 1 , and an arrow U indicates the top of the hot water storage/heating device 1 . Auxiliary heat source 3 is arranged in the front part in exterior case 4 of this hot water storage and hot water supply apparatus 1, hot water storage tank 2 is arranged in the rear side, and the right side of hot water storage and hot water supply apparatus 1 is close to the outer wall of building B, for example. The inside of the exterior case 4 is accessible from the front side and the left side.

Next, the exterior case 4 will be described.
The exterior case 4 is composed of a frame member 5 configured by combining a plurality of struts and a plurality of crosspieces, and a plurality of exterior panel members (exterior plates) that are tightly attached to the frame member 5 and fastened and fixed with screws or the like. there is As exterior panel members, a top panel 6 on the top surface of the exterior case 4, an upper front panel 7a on the upper front, a lower front panel 7b on the lower front, an upper left panel 8a on the upper left, and a lower left on the lower left. A panel 8 b , a rear panel 9 on the rear surface, an upper right panel 10 a on the upper right surface, and a lower right panel 10 b on the lower right surface are fixed to the frame member 5 .

Next, the exterior panel member will be described.
The end portions of the exterior panel members are bent or the like in order to prevent deformation and entry of rainwater, for example. The rectangular top panel 6 is bent so that its four ends extend downward, and is fixed to the frame member 5 with fastening members such as a plurality of screws. The front upper panel 7 a is provided with an exhaust opening 7 c corresponding to the exhaust port of the combustion-type auxiliary heat source device 3 housed in the exterior case 4 . The front lower panel 7b is formed with a notch 7d through which a pipe or the like for circulating the hot water in the hot water storage tank 2 with an external heat source machine (not shown) is passed.

The upper left panel 8a and the lower left panel 8b are larger than other exterior panel members, are easily deformed, and are often seen by people. Therefore, the upper left panel 8a and the left lower panel 8b have a plurality of projections 20 protruding inwardly of the exterior case 4 by recessing them so as to extend horizontally over substantially the entire width of the hot water storage and hot water supply apparatus 1 in the front-rear direction. It is formed so as to extend, which is a feature of the exterior design and is intended to improve the strength of the exterior panel member.

The rear panel 9 is provided with a grip portion 9 a for lifting the hot water storage and hot water supply device 1 . The lower right panel 10b is formed so that its width is smaller than the width of the hot water storage and hot water supply apparatus 1 in the front-rear direction. A pipe or the like (not shown) extending to the outside of the exterior case 4 is passed through an opening 5a in the front portion of the lower right side of the hot water storage and hot water supply apparatus 1 which is not covered by the right lower panel 10b. Incidentally, the upper right panel 10a and the lower right panel 10b may also be provided with convex portions similar to those of the upper left panel 8a and the lower left panel 8b.

In the case where the hot water storage and hot water supply apparatus 1 is installed so that the left side thereof faces the outer wall of the building, and the pipes and the like are exposed from the front portion of the left side lower stage of the hot water storage and hot water supply apparatus 1, the upper right panel 10a and the lower right panel 10b are provided. If there is no convex portion, the upper left panel 8a and the lower left panel 8b are replaced with the upper right panel 10a and the lower right panel 10b, respectively, and fixed.

The upper front panel 7a, the upper left panel 8a, the rear panel 9, and the upper right panel 10a are inserted between the downwardly bent end of the top panel 6 and the frame member 5 so that the frame member 5 is assembled. fixed to An upper left panel 8 a and a left lower panel 8 b are attached and fixed to the frame member 5 so as to cover the left end of the rear panel 9 fixed to the frame member 5 . Similarly, an upper right panel 10 a and a lower right panel 10 b are attached and fixed to the frame member 5 so as to cover the right end of the rear panel 9 . The front upper panel 7a is attached between the bent front end of the upper left panel 8a and the bent front end of the upper right panel 10a and fixed to the frame member 5. As shown in FIG. Rainwater is prevented from entering the exterior case 4 by overlapping the ends of the exterior panel members and blocking the gaps between the exterior panel members with the frame member 5 .

Next, the frame member 5 will be explained.
The frame member 5 includes a first base member 11 and a second base member 12 as crosspieces extending in the front-rear direction at the left and right portions of the hot water storage and hot water supply apparatus 1, and vertically extending at the front end portion and the center portion of the first base member 11, respectively. It has a first support 13 and a second support 14 that are erected and fixed, and a third support 15 and a fourth support 16 that are vertically fixed to the front end and center of the second base member 12, respectively. Crosspieces 17a to 17c that connect the first support 13 and the third support 15 at the upper end, the middle section, and the lower section, a crosspiece 17d that connects the first support 13 and the second support 14 at the upper end and the middle section, 17e, and crosspieces 17f and 17g that connect the third support 15 and the fourth support 16 at the upper end and the middle stage. Furthermore, a plate member supporting the hot water tank connects the first base member 11 and the second base member 12 .

The first to fourth struts 13 to 16 that constitute the frame member 5 have strength that prevents them from bending when supporting the auxiliary heat source machine 3 and the hot water storage tank 2 . The first strut 13 and the second strut 14 are equivalent, and the third and fourth struts 15 and 16 are formed symmetrically with the first and second struts 13 and 14, so the first strut will be explained. Description of the second to fourth struts 14 to 16 is omitted.

As shown in FIGS. 2 and 3, the first column 13 has a first main wall portion 13a with which the upper left panel 8a and the left lower panel 8b abut. At both ends of the first main wall portion 13a in the short direction, there are provided a first side wall portion 13b and a first side wall portion 13b extending longitudinally toward the inside of the exterior case 4 on the side opposite to the upper left panel 8a and the left lower panel 8b. It has two side wall portions 13c (a pair of side wall portions).

Further, the first post 13 is bent in the longitudinal direction of the first side wall portion 13b to the side opposite to the second side wall portion 13c at the end portion opposite to the first main wall portion 13a and substantially parallel to the first main wall portion 13a. It has a second main wall portion 13d extending to. At the end portion of the second main wall portion 13d opposite to the first side wall portion 13b, the first and second side wall portions 13b and 13c are bent in the longitudinal direction to the side opposite to the first main wall portion 13a side. It has a third side wall portion 13e extending substantially in parallel. In addition, the second side wall 13c has a wall portion 13f extending in the longitudinal direction opposite to the first side wall portion 13b at the end opposite to the first main wall portion 13a. The corners extending in the longitudinal direction are formed at both ends of the first and second main wall portions 13a and 13d in the width direction, and the corner portions extending in the longitudinal direction are formed by the second side wall portion 13c and the wall portion 13f. 1 Support column 13 is made difficult to bend.

As shown in FIGS. 1, 2, and 4 to 6, the first strut 13 can receive the protrusions 20 at portions corresponding to the plurality of protrusions 20 of the upper left panel 8a and the lower left panel 8b. A plurality of recesses 21 are recessed inside the exterior case 4 as shown. Each concave portion 21 has a pair of slits extending in the longitudinal direction at portions corresponding to the convex portions 20 at a pair of corners formed by the first main wall portion 13a and the first and second side wall portions 13b and 13c. 13g and 13h.

The first strut 13 is a long plate-like member having a pair of slits 13g and 13h formed in a portion corresponding to the convex portion 20 as shown in FIG. The portion between 13h is recessed and formed by press working to bend into a columnar shape. The dashed-dotted line and broken line in the drawing indicate the bending lines that are bent in the shape of mountains and valleys, respectively.

The pair of slits 13g and 13h are each formed in a trapezoidal shape. The parallel opposite sides of the trapezoid are called the bottom or the bottom side, respectively, and the other non-parallel opposite sides are called the legs, respectively. It is long, and the bottom S3 of the slit 13h on the side of the first main wall 13a is longer than the bottom S4 on the side of the second side wall 13c to form an isosceles trapezoid.

In each recess 21, slits are formed at the corners of both ends in the short direction of the first main wall portion 13a. Therefore, the decrease in strength of the first support 13 is suppressed as compared with the case where the first support 13 is notched so as to correspond to the recess 21 . In addition, since the strength of the first support 13 does not decrease as the number of recesses decreases, it is preferable that the ratio of the plurality of recesses 21 in the longitudinal direction of the first support 13 is as small as possible, and in this embodiment, the ratio is less than 25%. . Similarly to the first column 13, the second to fourth columns 14 to 16 also have a main wall portion (first main wall portion 14a, etc.) corresponding to the first main wall portion 13a, first and second side wall portions 13b, A pair of side wall portions (first and second side wall portions 14b, 14c, etc.) corresponding to 13c and a plurality of recesses 21 having a pair of slits are provided.

The first strut 13 has the first and second main wall portions 13a and 13d facing leftward in the left portion of the hot water storage and hot water supply apparatus 1, and the first and third side wall portions 13b and 13e facing the front side of the hot water storage and hot water supply apparatus 1. In addition, the second side wall portion is fixed to the first base member 11 so that it faces the rear side, and the second strut 14 is also fixed in the same manner. Similarly, in the right portion of the hot water storage and hot water supply device 1, the first and second main wall portions of the third support 15 and the fourth support 16 face rightward, and the first and third side walls of the hot water storage and hot water supply device 1 It is fixed to the second base member 12 on the front side with the second side wall portion on the rear side. These first to fourth struts 13 to 16 are connected by crosspieces 17a to 17g and the like to form a frame member 5 having supporting strength for supporting the auxiliary heat source machine 3, the hot water storage tank 2 and the like which are heavy. there is

When the upper left panel 8a and the lower left panel 8b are fixed to the frame member 5, the first main wall portions 13a and 14a of the first and second struts 13 and 14 come into contact with flat portions of the exterior panel member other than the convex portion 20. , each recess 21 receives a corresponding protrusion 20 . As a result, even if the exterior panel member has the protrusions 20, the frame member 5 abuts against the flat portion of the exterior panel member, so that the strength of the exterior panel member can be supplemented. If the concave portion 21 is formed so as to fit the convex portion 20 just right, it is possible to compensate for the decrease in strength of the pillar due to the concave portion 21 and to further suppress the decrease in strength of the exterior case 4 . Depending on the size, material, etc., it is possible to secure the required strength even with a post that does not have the second side wall portion 13c and the wall portion 13f. A recess 21 is formed by recessing a portion of the first main wall portion 13a where the slit is located.

FIG. 7 shows a crosspiece 23 with a plurality of recesses 24 similar to recess 21 with main wall 23a and a pair of side walls 23b, 23c. An exterior panel member having projections projecting inward of the exterior case is fixed to a frame member having a plurality of crosspieces having a plurality of recesses 24 and a plurality of struts to form the exterior case of the hot water storage and hot water supply apparatus. You can also Further, an exterior panel member having projections projecting inward of the exterior case is fixed to a frame member having a plurality of posts having a plurality of recesses 21 and a plurality of crosspieces having a plurality of recesses 24, thereby storing and supplying hot water. It can also constitute an exterior case for the device.

If the main wall and the side wall at one end in the width direction of the crosspiece can secure the necessary strength, the corner of the main wall and the side wall has a base corresponding to the same protrusion as above. It may have a shaped slit, and the recess may be formed by recessing a portion of the main wall having the slit. Further, the direction in which the protrusions of the exterior panel member extend is not limited to the horizontal direction, and the protrusions may extend in a polygonal line or a curved line, or may be formed in an island shape. Concave portions are formed in the struts and crosspieces at portions corresponding to the convex portions.

The action and effects of the hot water storage and hot water supply apparatus 1 of the present invention will be described.
The hot water storage and hot water supply apparatus 1 includes a frame member 5 configured by combining first to fourth struts 13 to 16, first and second base members 11 and 12 as a plurality of crosspieces, and a plurality of crosspieces 17a to 17g. It has an exterior case 4 formed by fixing an exterior panel member. The exterior case 4 accommodates the hot water storage tank 2, auxiliary equipment such as the auxiliary heat source equipment 3, piping, and the like.

The upper left panel 8a and the lower left panel 8b of the exterior panel members are provided with a plurality of projections 20 protruding inward from the exterior case 4, and the first and second columns 13 and 14 to which they are fixed are each A concave portion 21 is recessed inward of the outer case 4 so as to receive the convex portion 20 at a portion corresponding to the convex portion 20 . Therefore, it is possible to allow the convex portion 20 projecting inward of the exterior case 4 , that is, the recess of the exterior panel member, and to suppress the reduction in the strength of the exterior case 4 .

The first strut 13 has a first main wall portion 13a with which the exterior panel member having the convex portion 20 abuts, and one end portion in the short side direction of the first main wall portion 13a extending inwardly of the exterior case 4 in the longitudinal direction. In the case of having the first side wall portion 13b extending toward, the corner portion formed by the first main wall portion 13a and the first side wall portion 13b has a slit 13g extending in the longitudinal direction at a portion corresponding to the convex portion 20. As shown in FIG. At this time, the recessed portion 21 is formed by recessing the portion of the first main wall portion 13a having the slit 13g inside the exterior case 4 . Therefore, the recessed portion 21 is not divided in the longitudinal direction by being composed of the first main wall portion 13a and the first side wall portion 13b that are continuous in the longitudinal direction of the column, and the other second to fourth columns 14 to 16 are the same. Therefore, the main wall portion and the side wall portion can ensure the strength of the recessed portion of each support, thereby suppressing a decrease in the strength of the exterior case 4 .

The first post 13 further has a second side wall portion 13c extending inwardly of the exterior case 4 along the longitudinal direction of the other end portion of the first main wall portion 13a in the short direction. The concave portion 21 has a pair of slits 13g and 13h extending in the longitudinal direction at portions corresponding to the convex portion 20 at a pair of corners formed by the first main wall portion 13a and the first and second side wall portions 13b and 13c. It is formed by recessing the portion between the pair of slits 13g and 13h of the first main wall portion 13a into the exterior case 4. As shown in FIG. Therefore, the recessed portion 21 is not divided in the longitudinal direction by the first main wall portion 13a and the first and second side wall portions 13b and 13c that are continuous in the longitudinal direction of the support, and the other second to fourth support columns are connected to each other. Since 14 to 16 are the same, the main wall and the pair of side walls secure the strength of the concave portion of each support, thereby suppressing the deterioration of the strength of the exterior case 4 .

The slit 13g is formed in a trapezoidal shape and has a pair of bottoms parallel to each other in the longitudinal direction. ing. The slit 13h is also formed in a trapezoidal shape, and the bottom S3 on the side of the first main wall portion 13a is formed longer than the bottom S4 on the side of the second side wall portion 13c. Therefore, the first main wall portion 13a and the first side wall portion 13b at one end in the width direction, or the first main wall portion 13a and the first and second side walls at both ends in the width direction are formed. The two side walls 13b and 13c ensure the strength of the recesses 21 of the first support 13, and the second to fourth supports 14 to 16 are the same.

Similarly, the plurality of crosspieces constituting the frame member 5 are formed so as to have a main wall portion with which the exterior panel member abuts and a side wall portion at one end in the width direction or a pair of side wall portions at both ends in the width direction. By providing the recess, it is possible to allow the exterior panel member to be recessed, and to suppress a decrease in the strength of the exterior case. In addition, those skilled in the art can implement various modifications to the above-described embodiments without departing from the scope of the present invention, and the present invention includes such modifications.

1: Hot water storage hot water supply device 2: Hot water storage tank 3: Auxiliary heat source equipment (auxiliary equipment)
4: Exterior case 5: Frame member 8a: Upper left panel (exterior plate)
8b: Lower left panel (exterior board)
11, 12: first and second base members (crosspieces)
13 to 16: 1st to 4th struts (struts)
13a, 14a: first main wall portion (main wall portion)
13b, 13c, 14b, 14c: second and third side wall portions (side wall portions)
13f, 13g: slits 17a to 17g: crosspiece 20: convex portion 21: concave portion 23: crosspiece 23a: main wall portions 23b, 23c: side wall portions (a pair of side wall portions)
24: recesses S1 to S4: bottom

Claims (4)

A hot water storage and hot water supply device comprising: an exterior case in which a plurality of exterior plates are fixed to a frame member configured by combining a plurality of struts and a plurality of crosspieces; and a hot water storage tank, auxiliary equipment, and piping in the exterior case ,
at least one of the exterior plates has a protrusion projecting inward of the exterior case,
A hot water storage and hot water supply apparatus, wherein the plurality of pillars or crosspieces are provided with recesses recessed into the interior of the exterior case at portions corresponding to the projections. The strut or crosspiece includes a main wall portion with which the exterior plate having the convex portion abuts, and a side wall portion extending inward of the exterior case along the longitudinal direction at one end of the main wall portion in the width direction. has
The concave portion has a slit extending in the longitudinal direction at a portion corresponding to the convex portion at the corner formed by the main wall portion and the side wall portion, and the portion of the main wall portion having the slit is the exterior case. 2. The hot water storage and hot water supply apparatus according to claim 1, wherein the hot water supply device is recessed inward. The strut or crosspiece has another side wall portion extending inward of the exterior case over the longitudinal direction at the other end portion of the main wall portion in the short direction,
The concave portion has a pair of slits extending in the longitudinal direction at a pair of corners formed by the main wall portion and the pair of side wall portions at both ends thereof in the width direction corresponding to the convex portions. 3. The hot water storage and hot water supply apparatus according to claim 2, wherein a portion of said main wall portion between said pair of slits is recessed into said exterior case. 2. The slit is formed in a trapezoidal shape and has a pair of bottoms parallel to the longitudinal direction, and the bottom on the side of the main wall is longer than the bottom on the side of the side wall. 3. The hot water storage hot water supply device according to 3.

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