JP4278571B2 - Fixed structure of hot water storage type electric water heater - Google Patents

Description

The present invention relates to a hot water storage type electric water heater having a heating element in the hot water storage tank, especially a hot water storage tank is fixed to the floor, also relates to a fixing structure of the hot-water storage type electric water heater for fixing the hot water storage tank with each other is there.

Hot water storage type electric water heaters store hot water boiled using night electricity with low electricity charges in a hot water storage tank, and use the hot water during peak hours in the daytime. As a prior art regarding the shape and arrangement of the tank, as shown in Japanese Patent Application Laid-Open No. 2004-101098 of Patent Document 1, the hot water storage tank is divided into a plurality of units so as to be parallel in either the horizontal direction or the vertical direction. In order to make it easier to install and to install, this hot water storage tank has been proposed to have a structure in which the whole is formed into a thin flat shape and heat insulating material is pasted around the tank so that about 64 liters can be stored. .
JP2004-101098

  Several units of such hot water storage tanks are arranged in parallel in the horizontal direction on the floor, or fixed in the bottom of each hot water storage tank by adhesives, screws, or welding, etc. The legs are attached.

  However, in the case where the fixed leg is attached to the bottom of the conventional hot water storage tank with adhesive, screwing or welding, etc., since the fixed leg protrudes around the hot water storage tank, the hot water storage tank can be installed in the horizontal or vertical direction. There was a problem that a large space was required when paralleling. In addition, the conventional work of attaching the fixing leg to the bottom of the hot water storage tank by an adhesive, screwing, welding or the like has a problem that the work time becomes long as well as a troublesome work.

  The present invention has been developed to solve such problems. That is, the object of the present invention is to make each opening of the hot water storage tank also use a flange for supporting a water supply pipe, a heating element, a hot water temperature sensor, or a hot water supply port for replenishing water as an attachment base of the fixed leg. Fixing a hot water storage type electric water heater that does not require a bolt hole for a separate fixing leg, and does not require welding or adhesive fixing of the fixing leg to the tank body, and further allows the hot water storage tank to be made compact. To provide a structure.

According to the present invention, the opening in the upper and lower respective sidewall surfaces of the sides of the tank which is entirely made into a flat shape (4) and (5) the hot water storage tank (2) having, toward the hot water storage tank (2) in the heating body (7), a water supply pipe to replenish the water (8), for supporting by penetrating the hot water temperature sensor and the hot water supply pipe, the flange (6) attached to each opening (5), a substantially rectangular A fixed leg (11) formed with an engaged portion detachably attached to the flange (6) on one side of the plate-like member (12) and a bent portion (14) on the other side; Hot water storage hot water characterized by connecting the hot water storage tanks (2) stacked in the vertical direction by fixing the bent portions (14) of the fixed legs (11) attached to the hot water storage tank (2). A vessel fixing structure is provided.

The fixed leg (11) has, on one side of a substantially rectangular plate-like member (12), the heating element (7) , a water supply pipe (8), a hot water temperature sensor or a hot water supply pipe penetrating the flange (6). A notch (13) is formed to further prevent interference with the bolt, and a bolt insertion hole (16) serving as an engaged portion is further provided.
A bent portion (14) is formed on the other side of the plate-like member (12).
A bolt insertion hole (16) for fastening a bolt to the bolt hole (15) of the flange (6) is formed around the notch (13) of the fixed leg (11).

  In the invention having the above-described configuration, the heating element (7), the water supply pipe (8) for replenishing water, the hot water temperature sensor, the hot water supply port, and the like are penetrated and supported in the openings (5) on both sides of the hot water storage tank (2). Since the fixed leg (11) comprising the plate-like member (12) for supporting the hot water storage tank (2) is detachably attached to (6), a bolt hole for a separate fixed leg is provided as in the prior art. No longer needed. Further, since there is no need to weld or fix the fixing leg to the hot water storage tank (2) as in the prior art, the hot water storage tank (2) can be made compact.

  Fixing the hot water storage tank (2) to the floor is completed simply by attaching the bent portions (14) of the fixing legs (11) attached to the two sides of the hot water storage tank (2) to the floor. The hot water storage tank (2) can be connected in the lateral direction only by a similar attachment.

  Moreover, the hot water storage tank (2) can be obtained simply by fixing the bent portions (14) of the fixed legs (11) in the vertical direction by attaching the fixed legs (11) to the upper and lower four places on both sides of the hot water storage tank (2). Can be stacked vertically.

  The present invention includes a hot water storage tank having an opening on each side wall surface on both sides of the tank, the entire shape of which is flat, and a heating element, a water supply pipe for supplying water, a hot water temperature sensor, A flange that supports a hot water supply port and the like, and a fixed leg that is detachably attached to the flange and includes a plate-like member for supporting the hot water storage tank.

Hereinafter, preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front sectional view showing an internal structure of a hot water storage tank of a hot water storage type electric water heater constituting the fixing structure of the present invention.
The hot water storage tank 2 of the hot water storage type electric water heater 1 of the present invention is formed in a thin and flat shape so that, for example, about 120 liters of hot water can be stored, and a heat insulating material 3 is pasted around it. . The hot water storage tank 2 is manufactured by blow molding made of synthetic resin. For example, a synthetic resin material such as PPE (polyphenol ethylene) is used. In the present invention, the hot water storage tank 2 is lightened in order to reduce the burden on the building structure. However, as long as the tank is a synthetic resin material that always has a pressure resistance of 0.1 MPa and a heat resistance performance of about 85 ° C. to a maximum of about 100 ° C., the tank is not limited to this PPE and can be variously changed to other synthetic resin materials.

  The hot water storage tank 2 of the present invention has an opening 5 in each of the side wall surfaces 4 on both sides thereof, and is detachably attached to a flange 6 in the opening 5. The flange 6 has a rod-like heating element 7, a water supply pipe 8, a hot water temperature sensor, an overheat prevention thermostat, and the like attached so as to pass through like a bowl. The hot water storage type electric water heater 1 of the present invention uses the heating element 7, the water supply pipe 8, the hot water temperature sensor, the overheating prevention thermo, and the like arranged as described above, and uses hot night electricity with a low electricity bill. It's about to boil.

  Outside the hot water storage tank 2, a heat insulating material 3 such as a vacuum heat insulating material is wrapped around a substantially flat wall surface 9. The heat insulating material 3 is required to be a material that satisfies a temperature drop of less than 20 degrees after being left for 13 hours. The internal structure of the hot water storage tank 2 is not limited to the structure of the illustrated example in the arrangement of the heating element 7 and the water supply pipe 8.

FIG. 2 is an enlarged sectional view showing the fixing structure of the present invention. FIG. 3 shows a fixed leg, (a) is a side view and (b) is a front view.
Fixed legs 11 were detachably attached to the flanges 6 of the openings 5 in the side wall surface 4 on both sides of the hot water storage tank 2. In the present invention, the flange 6 is also used as the mounting base of the fixed leg 11. The fixed leg 11 is a plate-like member 12 formed by bending a substantially rectangular metal plate or the like. The plate width of the fixed leg 11 is the same as or shorter than the width of the side wall 4 of the hot water storage tank 2. A notch 13 is formed on one side of the plate-like member 12 constituting the fixed leg 11 in order to avoid interference with the heating element 7, the water supply pipe 8, the hot water temperature sensor, or the hot water supply port. is there. Further, a bent portion 14 that is bent in a substantially L shape is formed on the other side of the plate-like member 12. The bent portion 14 is a portion to be grounded when the hot water storage tank 2 is placed on the floor. A bolt insertion hole 15 is opened so that the bent portion 14 can be easily bolted. Moreover, as shown in FIG. 2, when the hot water storage tanks 2 are juxtaposed in the lateral direction, the bent portions 14 (L1) do not interfere with each other, and the sides are more than the thickness (L2) including the heat insulating material 3. The shape does not protrude.

  The fixed leg 11 having such a shape is detachably bolted to the flange 6. For example, as shown in the side view of FIG. 3A, a plurality of bolts that are engaged portions are inserted around the notch portion 13 of the fixed leg 11 in order to stop the bolt in the bolt hole 15 of the flange 6. The hole 16 is opened and a bolt is tightened here. Alternatively, it is possible to fix the fixing leg itself with a bolt (not shown) that fixes the heating element 7 or the shaft portion of the water supply pipe 8 to the flange 6.

  As described above, the fixed leg 11 of the present invention can be attached to the flange 6 attached to the opening 5 of the hot water storage tank 2 by detachably attaching the fixed leg 11 made of a plate-like member for supporting the hot water storage tank 2. Is also used as the mounting base of the fixed leg 11, so that it is no longer necessary to provide a separate bolt hole for the fixed leg as in the prior art. Further, since there is no need to weld or fix the fixing leg to the hot water storage tank 2 as in the prior art, the hot water storage tank 2 can be made compact.

FIG. 4 is a front sectional view showing a state in which hot water storage tanks having the fixing structure of the present invention are juxtaposed in the lateral direction.
A plurality of hot water storage tanks 2 can be connected in a lateral direction by simply attaching fixed legs 11 to two flanges 6 on both sides of the hot water storage tank 2 and attaching bent portions 14 of the fixed legs 11 to the floor. Although two pieces are shown in parallel in the drawing, three or more hot water storage tanks 2 can be arranged in parallel. Of course, the hot water storage tanks 2 are not limited to the state where they are juxtaposed in the horizontal direction, but can be fixed in a column.

FIG. 5 is a front sectional view showing a state in which hot water storage tanks having the fixing structure of the present invention are arranged in the vertical direction.
In the fixing structure of the first embodiment, an example in which the fixing legs 11 are attached only to the lower side of the hot water storage tank 2 is shown. However, these fixing legs 11 can be attached if they are flanges 6. Therefore, in Example 2, the fixed legs 11 were attached to one hot water storage tank 2 at four locations on the side wall surface 4. Thus, the hot water storage tank 2 can be stacked up and down by attaching the four fixed legs 11. For example, in addition to the fixed legs 11 attached to the floor to the first-stage hot water storage tank 2, the fixed legs 11 are also attached to the upper flange 6 of the hot-water tank 2 in order to fix the second-stage hot water storage tank 2. The upper fixed leg 11 and the fixed legs 11 of the second-stage hot water storage tank 2 are connected to each other. That is, the hot water storage tank 2 can be connected in the vertical direction by simply fixing the bent portions 14 of the fixed legs 11 connected in the vertical direction. In the drawing, since two are shown in a stacked state, the upper fixed leg 11 of the second-stage hot water storage tank 2 is not attached. However, when three or more machines are stacked, an upward fixed leg 11 is also attached to the upper flange 6 of the second-stage hot water storage tank 2.

  Note that the present invention is not limited to the above-described embodiment of the present invention as long as the fixing leg 11 can be easily attached to the flange 6 constituting the hot water storage tank 2, and does not depart from the gist of the present invention. Of course, various changes can be made.

  The fixing structure of the hot water storage type electric water heater of the present invention can be mainly used for the flat and thin hot water storage tank 2 as a whole, but if the hot water storage tank has a structure in which the flange 6 is attached to the hot water storage tank 2, It can also be used for a conventional vertical cylindrical hot water storage tank.

It is a front sectional view showing the internal structure of the hot water storage tank of the hot water storage type electric water heater that constitutes the fixing structure of the present invention. It is an expanded sectional view showing the fixed structure of the present invention. A fixed leg is shown, (a) is a side view, (b) is a front view. It is a front sectional view showing a state in which hot water storage tanks equipped with the fixing structure of the present invention are juxtaposed in the horizontal direction. It is a front sectional view showing a state in which hot water storage tanks equipped with the fixing structure of the present invention are arranged in the vertical direction.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hot water storage type electric water heater 2 Hot water storage tank 4 Tank side wall surface 5 Opening part 6 Flange 7 Heating element 8 Water supply pipe 11 Fixed leg 12 Plate-shaped member 13 Notch part 14 Bending part 15 Bolt hole (flange side)
16 Bolt insertion hole (engaged part)

Claims (3)

Whole hot water storage tank having an opening (5) above and below each of the sides of the side wall surface of the tank comprising a flat shape (4) (2),
The hot water storage tank (2) heating elements towards the (7), a water supply pipe to replenish the water (8), for supporting by penetrating the hot water temperature sensor and the hot water supply tube, attached to the each opening (5) Flange (6),
A fixed leg (11) having an engaged portion that is detachably attached to the flange (6) on one side of a substantially rectangular plate-like member (12) and a bent portion (14) on the other side; , And
By fixing the bent portions (14) of the fixed legs (11) attached to the hot water storage tank (2), the hot water storage tanks (2) stacked in the vertical direction are connected.
This is a fixed structure for hot water storage type electric water heaters. The fixed leg (11) has, on one side of a substantially rectangular plate-like member (12), the heating element (7) , a water supply pipe (8), a hot water temperature sensor or a hot water supply pipe penetrating the flange (6). A notch (13) is formed to further prevent interference with the bolt, and a bolt insertion hole (16) serving as an engaged portion is further provided.
The fixing structure of the hot water storage type electric water heater according to claim 1, wherein a bent portion (14) is formed on the other side of the plate-like member (12). A bolt insertion hole (16) for fastening a bolt to the bolt hole (15) of the flange (6) is formed around the notch (13) of the fixed leg (11). The fixing structure of the hot water storage type electric water heater according to claim 2 .

Images