JP5327213B2 - Hot water storage tank unit - Google Patents

Description

  The present invention relates to a hot water storage tank unit.

  2. Description of the Related Art Conventionally, in a tank body (tank) of a hot water storage tank unit (hot water storage type hot water heater) such as Patent Document 1 (Japanese Patent Laid-Open No. 2006-250393), a tank body part and a casing (external housing) surrounding the tank body part are provided. The thing which devised the support member of between is known.

  In such a tank body, the casing is generally a front plate on the front side of the casing so that maintenance such as a tank body, piping connected to the tank body, and a temperature sensor for detecting the temperature in the tank body can be easily performed. Can be removed. However, the structure of the front plate that is frequently removed is hardly devised.

  The subject of this invention is providing the hot water storage tank unit of the structure where users, such as an operator, can attach or detach a front board easily with respect to a casing.

  The hot water storage tank unit according to the first aspect of the present invention includes a tank body, a casing, and a heat insulating member. The casing includes at least a top plate and a front plate and surrounds the tank body. The top plate has a top portion and a peripheral portion. The peripheral edge extends downward from the peripheral edge of the top. The front plate is disposed closer to the tank body than the peripheral edge. The heat insulating member has a main body portion and a pressing portion, and is attached to the top portion of the tank main body. The pressing portion protrudes from the main body portion and presses the upper end portion of the front plate against the peripheral portion of the top plate.

  Therefore, even if the front plate is not fixed to the top plate or other parts of the casing by screws or the like, the front plate is in close contact with the peripheral portion of the top plate in a state where it is disposed at a predetermined position. It can be. As a result, the casing has a structure in which front-rear positioning is easy in the vicinity of the upper end portion of the front plate, and the user can easily attach the front plate to the casing.

  The hot water storage tank unit according to the second aspect of the present invention is the hot water storage tank unit according to the first aspect, wherein the pressing portion of the heat insulating member has an elastic member at the tip. The front plate is pressed against the peripheral edge of the top plate by the elastic member.

  Therefore, the front plate is pressed against the peripheral edge of the top plate by the elastic member at the tip of the pressing portion and comes into close contact therewith. As a result, the casing has a structure in which front-rear positioning is easy in the vicinity of the upper end portion of the front plate, and the user can easily attach the front plate to the casing.

  The hot water storage tank unit according to a third aspect of the present invention is the hot water storage tank unit according to the first aspect or the second aspect, wherein the heat insulating member is made of polystyrene foam.

  Therefore, even if the pressing portion of the heat insulating member receives a reaction force from the front plate, the heat insulating member can be made of a material that is not easily deformed. For this reason, the press part of a heat insulation member can press the front board effectively with respect to the peripheral part of a top plate.

  The hot water storage tank unit according to a fourth aspect of the present invention is the hot water storage tank unit according to any one of the first aspect to the third aspect, wherein the casing is a side plate surrounding the side of the tank main body together with the front plate, or the tank main body. It further includes a bottom plate disposed below. The front plate is fixed by a side plate or a bottom plate and screws at a portion other than the upper end portion.

  Generally, the tank body of the hot water storage tank unit has a height of about 1.7 to 2.0 m, for example, and the upper end of the front plate is, for example, a portion other than the front plate of the casing, such as the peripheral edge of the top plate. If it is fixed with a screw, a step such as a stepladder is required for the user to remove the screw. For this reason, the user cannot easily attach and detach the front plate.

  In the hot water storage tank unit according to the fourth aspect, since the portion excluding the upper end of the front plate is fixed to the side plate or the bottom plate with screws, the front plate can be attached to and detached from the casing even if there is no stepladder such as a stepladder for removing the screws. can do. Moreover, since the upper end part of the front plate is pressed against the peripheral part of the top plate by the pressing part and is in close contact with it, even if it is not fixed to a part other than the front plate of the casing by screws, it is near the upper end part of the front plate. The part can be prevented from vibrating back and forth.

  The hot water storage tank unit according to the fifth aspect of the present invention is the hot water storage tank unit according to any of the first to fourth aspects, wherein the lower end of the peripheral edge of the top plate is higher than the upper end of the pressing part of the heat insulating member. Located in.

  In the hot water storage tank unit according to the fifth aspect, since the lower end of the peripheral portion of the top plate is located at a position higher than the upper end of the pressing portion of the heat insulating member, it is between the peripheral portion of the top plate and the pressing portion of the heat insulating member. There is a gap. Thus, the user inserts the upper end portion of the front plate obliquely upward with respect to the gap between the peripheral portion of the top plate and the pressing portion of the heat insulating member, while placing the portion other than the upper end portion of the front plate in front of the casing. By pressing against a portion other than the plate and the top plate, the front plate can be arranged at a predetermined position. For this reason, the user can easily attach the front plate to a portion other than the front plate and the top plate.

  The hot water storage tank unit according to a sixth aspect of the present invention is the hot water storage tank unit according to the first aspect to the fifth aspect, wherein the heat insulating member has a plurality of pressing portions.

  Thus, in the hot water storage tank unit according to the sixth aspect, since there are a plurality of pressing portions of the heat insulating member, the pressing portion of the heat insulating member can more reliably press the front plate against the peripheral portion of the top plate.

  In the hot water storage tank unit according to the first aspect of the present invention, even if the front plate is not fixed to the top plate or other parts of the casing with screws or the like, the front plate is in a state of being arranged at a predetermined position. Can be brought into close contact with the peripheral edge of the top plate. As a result, the casing has a structure in which front-rear positioning is easy in the vicinity of the upper end portion of the front plate, and the user can easily attach the front plate to the casing.

  In the hot water storage tank unit according to the second aspect of the present invention, the front plate is pressed and adhered to the peripheral edge of the top plate by the elastic member at the tip of the pressing portion. As a result, the casing has a structure in which front-rear positioning is easy in the vicinity of the upper end portion of the front plate, and the user can easily attach the front plate to the casing.

  In the hot water storage tank unit according to the third aspect of the present invention, even if the pressing portion of the heat insulating member receives the reaction force from the front plate, the heat insulating member can be made of a material that is not easily deformed. For this reason, the press part of a heat insulation member can press the front board effectively with respect to the peripheral part of a top plate.

  In the hot water storage tank unit according to the fourth aspect of the present invention, since the portion excluding the upper end portion of the front plate is fixed with the side plate and the screw, the front plate is attached to the casing even if there is no stepladder such as a stepladder for removing the screw. Detachable. Moreover, since the upper end part of the front plate is pressed against the peripheral part of the top plate by the pressing part and is in close contact with it, even if it is not fixed to a part other than the front plate of the casing by screws, it is near the upper end part of the front plate. The part can be prevented from vibrating back and forth.

  In the hot water storage tank unit according to the fifth aspect of the present invention, since the lower end of the peripheral portion of the top plate is positioned higher than the upper end of the press portion of the heat insulating member, the peripheral portion of the top plate and the press portion of the heat insulating member There is a gap between them. Thus, the user inserts the upper end portion of the front plate obliquely upward with respect to the gap between the peripheral portion of the top plate and the pressing portion of the heat insulating member, while placing the portion other than the upper end portion of the front plate in front of the casing. By pressing against a portion other than the plate and the top plate, the front plate can be arranged at a predetermined position. For this reason, the user can easily attach the front plate to a portion other than the front plate and the top plate.

  In the hot water storage tank unit according to the sixth aspect of the present invention, since there are a plurality of pressing portions of the heat insulating member, the pressing portion of the heat insulating member can more reliably press the front plate against the peripheral portion of the top plate.

It is an external appearance perspective view of the tank main body of a hot water storage tank unit. It is an external appearance perspective view of the state which removed the front board of the casing of the tank main part of a hot water storage tank unit. It is a perspective view of a top heat insulation member. It is a top view of the state which removed the top plate of the casing of the tank main part of a hot water storage tank unit. It is a schematic sectional drawing which shows the positional relationship before and behind a top plate, a front board, and a heat insulation member. It is a figure which shows the procedure at the time of arrange | positioning a front board to a top plate. It is a figure which shows the procedure at the time of arrange | positioning a front board to a top plate.

(1) Tank Body of Hot Water Storage Tank Unit Hereinafter, an embodiment of the hot water storage tank unit 10 according to the present invention will be described based on the drawings. FIG. 1 is an external perspective view of the hot water storage tank unit 10. FIG. 2 is an external perspective view of the hot water storage tank unit 10 with the front plate 22 of the casing 20 removed.

  The hot water storage tank unit 10 in which an embodiment of the present invention is employed is a unit that stores hot water produced by heating tap water by performing a vapor compression refrigeration cycle operation using, for example, CO 2 refrigerant. Although a method of heating tap water by performing a vapor compression refrigeration cycle operation is taken as an example, the heating method of tap water is not limited to this, and a method of heating with an electric heating coil may be used. A method of heating using sunlight may be used.

  As shown in FIGS. 1 and 2, the hot water storage tank unit 10 mainly includes a casing 20 and a tank body 30. The casing 20 includes a top plate 21, a front plate 22, a right side plate 23, a left side plate 24, and a bottom plate 25, and surrounds the tank body 30.

  The top plate 21 includes a top portion 21a that forms an upper surface portion of the casing 20, and a peripheral portion 21b that extends downward from the periphery of the top portion 21a. The top part 21a is substantially rectangular.

  The front plate 22, the right side plate 23, and the left side plate 24 have their upper ends disposed inside the peripheral edge 21 b of the top plate 21. The front plate 22 is fixed at two locations in the vicinity of the center in the height direction with the center support member 26 and screws, and at the two lower ends thereof with the lower support member 27 and screws. The center support member 26 is fixed at two positions near the center in the height direction over the front side portion of the right side plate 23 and the left side plate 24, and the lower support member 27 is the right side plate 23, the left side plate 24, and the bottom plate 25. It is fixed against. That is, the front plate 22 is fixed to the right side plate 23, the left side plate 24, and the bottom plate 25 via the center support member 26 and the lower support member 27. In the present embodiment, only one central support member 26 is provided in the height direction of the casing 20. However, the central support member 26 is not limited to this, and a plurality of central support members 26 are provided except for the upper end portion and the lower end portion of the front plate 22. However, a plurality of locations may be fixed with screws at positions in the height direction. Further, in the present embodiment, the lower support member 27 is fixed to all of the right side plate 23, the left side plate 24, and the bottom plate 25, but not limited thereto, only the right side plate 23 and the left side plate 24 are provided. And may be fixed only to the bottom plate 25. Further, the front plate 22 may be fixed to the right plate 23 and the left plate 24 or the bottom plate 25 directly without the central support member 26 and / or the lower support member 27. Also good. The right side plate 23 has a right side plate rear portion 23 a that faces the front plate 22 with the tank body 30 interposed therebetween. Similarly to the right side plate 23, the left side plate 24 also has a left side plate rear portion 24 a that faces the front plate 22 and the tank body 30. That is, the right side plate 23 and the left side plate 24 are L-shaped when viewed from above. The right side plate 23 and the left side plate 24 are fixed with screws in a state in which a portion near the end side of the right side plate rear portion 23a and a portion near the end side of the left side plate rear portion 24a are overlapped, so that the tank body 30 is viewed in top view. It is formed in a U-shape so as to cover from the three directions of the right side, the left side, and the rear side (see FIG. 4). In addition, the member (namely, member except the top plate 21 and the bottom plate 25) which comprises the side surface of the casing 20 is comprised by three members, the front board 22, the right side board 23, and the left side board 24 in this embodiment. However, the present invention is not limited to this, and the right side plate and the left side plate may be flat plates, and a rear plate may be provided, and the front plate, the right side plate, the left side plate, and the rear plate may be configured. . In this case, the rear plate is formed of a single flat plate disposed at a position corresponding to the right side plate rear portion 23a and the left side plate rear portion 24a in the present embodiment.

(2) Thermal insulation member The tank body 30 is entirely covered with a thermal insulation member 40 made of polystyrene foam. The heat insulating member 40 includes a side heat insulating member 41 that covers the side surface of the tank main body 30, and a top heat insulating member 42 that is attached to the top of the tank main body 30 (see FIG. 2). As shown in FIG. 3, the top heat insulating member 42 includes a main body 43, and a first protrusion 44 and a second protrusion 45 that protrude from the main body 43. The first protrusion 44 is formed integrally with the main body 43. The second protrusion 45 is a separate member from the main body 43 and is a member that can be detached from the main body 43. The user can maintain a temperature sensor that detects the temperature of the tank main body 30 by removing the second protrusion 45 from the main body 43. FIG. 3 is a perspective view of the top heat insulating member.

(3) Positional relationship between top heat insulating member and casing The front end surfaces 44a and 45a of the first protrusion 44 and the second protrusion 45 are in close contact with the front plate 22, as shown in FIGS. FIG. 4 is a plan view of the hot water storage tank unit 10 with the top plate 21 of the casing 20 removed. FIG. 5 is a schematic cross-sectional view showing the positional relationship before and after the top plate 21, the front plate 22, and the top heat insulating member 42. The front end surfaces 44a and 45a of the first protrusion 44 and the second protrusion 45 are made of a seal member having a thickness of 5 mm. That is, the tips of the first projecting portion 44 and the second projecting portion 45 are elastic members made of a seal member. Further, the front end surfaces 44a and 45a of the first projecting portion 44 and the second projecting portion 45 are located on the inner surface of the front plate 22 in a state where the upper end portion of the front plate 22 is in close contact with the peripheral edge portion 21b of the top plate 21. Also protrudes a few mm (less than 5 mm). For this reason, the front plate 22 is in a state of being pressed inside the peripheral edge portion 21 b of the top plate 21 by the front side end faces 44 a and 45 a of the first protruding portion 44 and the second protruding portion 45.

(4) Front plate attachment method The lower end of the peripheral edge portion 21b of the top plate 21 is 30 to 100 mm (about 50 mm in this embodiment) than the upper ends of the first protrusion 44 and the second protrusion 45 of the top heat insulating member 42. Located at a high position. Therefore, as shown in FIG. 6, the user has a gap between the peripheral edge portion 21 b of the top plate 21 and the upper ends of the first protruding portion 44 and the second protruding portion 45 of the top heat insulating member 42 as shown in FIG. 6. Insert into (space). Then, the user rotates toward the tank body 30 with the upper end portion of the front plate 22 as a starting point, with the upper end portion of the front plate 22 abutting against the lower surface of the top portion 21a of the top plate 21, as shown in FIG. The portion excluding the upper end portion of the front plate 22 is pressed against the right side plate 23, the left side plate 24, and the bottom plate 25, and the four positions of the front plate 22 are fixed with screws. Thereby, the front plate 22 can be brought into a state of being pressed and adhered to the inner side of the peripheral edge portion 21 b of the top plate 21 by the first protruding portion 44 and the second protruding portion 45 of the top heat insulating member 42.

(4) Features (4-1)
In the hot water storage tank unit 10 according to the present embodiment, the upper end portion of the front plate 22 is pressed and closely adhered to the inner side of the peripheral portion 21b of the top plate 21 by the first projecting portion 44 and the second projecting portion 45 of the top heat insulating member 42. State.

  Therefore, the front plate 22 is arranged at a predetermined position of the casing 20 even if it is not fixed to a portion other than the front plate 22 of the casing 20 such as the top plate 21, the right side plate 23, or the left side plate by screws. In this state, the upper end portion of the front plate 22 can be fixed in the front-rear direction. As a result, the casing 20 has a structure that facilitates front-rear positioning in the vicinity of the upper end of the front plate, and the user can easily attach the front plate 22 to the casing 20. In the hot water storage tank unit 10, the member that presses the front plate 22 against the peripheral edge 21 b of the top plate 21 is a plurality of members including the first protruding portion 44 and the second protruding portion 45. The top plate 21 can be pressed inside the peripheral edge portion 21b.

(4-2)
In the hot water storage tank unit 10 according to the present embodiment, since the upper end portion of the front plate 22 is not fixed to the portion excluding the front plate 22 of the casing 20 by screws, the front plate 22 even if there is no stepladder or the like for removing the screws. Can be detached from the casing 20. Further, the upper end portion of the front plate 22 is pressed against and closely adhered to the peripheral edge portion 21b of the top plate 21 by the first protruding portion 44 and the second protruding portion 45 of the top heat insulating member 42. Even if it is not fixed to a portion other than the plate 22 and the top plate 21, it is possible to prevent the portion near the upper end of the front plate from vibrating back and forth.

(4-3)
In the hot water storage tank unit 10 according to the present embodiment, the lower end of the peripheral edge portion 21 b of the top plate 21 is positioned higher than the upper ends of the first protrusions 44 and the second protrusions 45 of the top heat insulating member 42. For this reason, a gap is generated between the peripheral edge 21 b of the top plate 21 and the first protrusion 44 and the second protrusion 45 of the top heat insulating member 42. Thus, the user inserts the upper end portion of the front plate 22 obliquely upward with respect to the gap between the peripheral edge portion 21b of the top plate 21 and the first protruding portion 44 and the second protruding portion 45 of the top heat insulating member 42. On the other hand, the front plate 22 can be placed at a predetermined position by pressing portions other than the upper end portion of the front plate 22 against the right side plate 23, the left side plate 24, and the bottom plate 25 of the casing 20. For this reason, the user can easily attach the front plate 22 to the casing 20.

(5) Modification In the hot water storage tank unit 10 according to the above embodiment, the upper end portion of the front plate 22 is not fixed to the top plate 21 with screws, but the upper end portion of the front plate 22 is not limited to this. The plate 21 may be fixed with screws.

  In this case, the front plate 22 is pressed against the top plate 21 by the first projecting portion 44 and the second projecting portion 45 of the top heat insulating member 42. For this reason, when the user tries to fix the upper end of the front plate 22 with screws, the front plate 22 will not bend toward the tank main body 30 side, so the user can easily hold the upper end of the front plate 22. The top plate 21 can be fixed to the peripheral edge 21b with screws.

DESCRIPTION OF SYMBOLS 10 Hot water storage tank unit 20 Casing 21 Top plate 21a Top part 21b Peripheral part 22 Front plate 23 Right side plate (side plate)
24 Left side plate (side plate)
25 Bottom plate 30 Tank body 42 Top heat insulating member (heat insulating member)
43 Main body 44 First protrusion (pressing portion)
45 Second protrusion (pressing part)
44a, 45a Front end face (elastic member)

JP 2006-250393 A

Claims (6)

A tank body (30);
It includes at least a top plate (21) having a top portion (21a) and a peripheral portion (21b) extending downward from the peripheral portion thereof, and a front plate (22) disposed closer to the tank body than the peripheral portion. A casing (20) surrounding the tank body;
A main body portion (43), and a pressing portion (44, 45) that protrudes from the main body portion and presses the upper end portion of the front plate against the peripheral edge portion of the top plate; A heat insulating member (42) to be attached to,
A hot water storage tank unit (10). The pressing part of the heat insulating member has a tip made of an elastic member (44a, 45a),
The front plate is pressed against the peripheral edge of the top plate by the elastic member.
The hot water storage tank unit (10) according to claim 1. The heat insulating member is made of polystyrene foam,
The hot water storage tank unit (10) according to claim 1 or 2. The casing further includes a side plate (23, 24) surrounding the hot water storage tank along with the front plate, or a bottom plate (25) disposed below the hot water storage tank,
The front plate is fixed by the side plate or the bottom plate and screws in a portion excluding the upper end portion,
The hot water storage tank unit (10) according to any one of claims 1 to 3. The lower end of the peripheral part of the top plate is positioned higher than the upper end of the pressing part of the heat insulating member,
The hot water storage tank unit (10) according to any one of claims 1 to 4. The heat insulating member has a plurality of the pressing portions.
The hot water storage tank unit (10) according to any one of claims 1 to 5.

Images