JP2019039652A - Electric water heater - Google Patents

Abstract

To provide an electric water heater capable of appropriately selecting installation modes according to a situation of an installation place, and suppressing manufacturing costs and construction costs.SOLUTION: A storage type electric water heater 1 has a casing 24, and fixing members 26, 28 commonly used in both of a case when the casing is fixed to a wall surface W and a case when it is fixed to a floor surface F, and fixable to the wall and the floor. The casing includes fixing portions for wall 46a, 46b capable of being fixed to the wall through fixing members in a case when a rear wall 36 is fixed to the wall, the fixing portions for wall are engageable with the fixing members in a state of being fixed to the wall, the casing includes fixing portions for floor 60a, 60b, 62a, 62b capable of being fixed to the floor through the fixing members when a bottom wall 38 is fixed to the floor, and the fixing portions for floor are engageable with the fixing members in a state of being fixed to the floor.SELECTED DRAWING: Figure 2

Description

  The present invention relates to an electric water heater, and more particularly, to a hot water storage type electric water heater that can supply hot water.

2. Description of the Related Art Conventionally, as a hot water type electric water heater that can supply hot water that has been stored, one that is attached to a vertical wall surface below a wall-mounted or counter-type wash basin as described in Patent Document 1, for example. Are known.
Such a conventional hot water storage type electric water heater is installed on a standing wall surface of a limited space below the wash basin.

JP 2005-164077 A

  However, in the above-described conventional hot water storage type electric water heater, it cannot be installed on the floor surface, so depending on the site where the installation space can hardly be secured below the washbasin, etc. The necessity of providing a new wall also arises. For this reason, there exists a problem that construction burden is large.

  Therefore, the present invention has been made to solve the above-described problems of the prior art, and can appropriately select an installation form according to the situation of the installation location, thereby suppressing product costs and construction costs. The purpose is to provide a hot water storage type electric water heater.

In order to achieve the above-described problems, the present invention is a hot water storage type electric water heater that enables supply of hot water stored in a hot water, a water passage through which water supplied from a water supply source passes, and from this water passage A tank for storing supplied water, an electric heating unit for electrically heating the water in the tank, a water supply system function unit for opening and closing the water passage or the tank, the water passage, the tank, the electric The heating unit and the casing provided so as to cover the water supply system function unit from the outside, and both the case where the casing is fixed to the wall and the case where the casing is fixed to the floor can be used together. And a fixing member that can be fixed to either the floor or the floor, and the casing includes a front wall and a rear wall provided in the front-rear direction, and a bottom wall and an upper wall provided in the vertical direction, respectively. Side walls provided on both sides in the left-right direction The casing includes a wall fixing portion that can be fixed to the wall via the fixing member when the wall is subsequently fixed to the wall, and the wall fixing portion is fixed to the wall. The casing is provided with a floor fixing portion that can be fixed to the floor via the fixing member when the bottom wall is fixed to the floor. The portion can be engaged with the fixing member fixed to the floor.
In the present invention configured as described above, by using a fixing member that can be used for both the case where the casing is fixed to the wall and the case where the casing is fixed to the floor, the casing is attached to the wall or the wall via the common fixing member. Can be fixed on the floor.
When the rear wall of the casing is fixed to the wall, the wall fixing portion of the casing can be engaged with the fixing member fixed to the wall.
Further, even when the bottom wall of the casing is fixed to the floor, the floor fixing portion of the casing can be engaged with the fixing member fixed to the floor using the same fixing member.
Therefore, since the fixing member can be made common regardless of the case where the casing is fixed to the wall and the case where the casing is fixed to the floor, the product cost and the construction cost can be suppressed.
Moreover, since the installation form which fixes a casing to a wall and the installation form which fixes to a floor can be suitably selected according to the condition of the installation place of an electric water heater, the workability of an electric water heater can also be improved. .

In the present invention, preferably, the fixing member includes a first fixing member and a second fixing member that can fix the casing to each of a first fixing position and a second fixing position on the wall or the floor, respectively. The wall fixing portion is provided on the rear wall of the casing so as to be fixable to the first fixing position of the wall via the first fixing member when the rear wall of the casing is fixed to the wall. A fixing portion for one wall, and a fixing portion for a second wall that can be fixed to the second fixing position of the wall via the second fixing member, and fixing the second fixing member and the second wall. The portion restricts the disengagement of the first wall fixing portion in a state where the first wall fixing portion is engaged with the first fixing member fixed to the wall, and the floor fixing portion is When the bottom wall of the casing is fixed to the floor , A first floor fixing portion provided on the bottom wall so as to be fixable to the first fixing position of the floor via the first fixing member, and the second of the floor via the second fixing member. A second floor fixing portion fixable to a fixed position, wherein the second fixing member and the second floor fixing portion are fixed to the first fixing member in a state of being fixed to the floor. The disengagement of both is restricted in a state where the fixing portion is engaged.
In the present invention configured as above, in a state where the first wall fixing portion is engaged with the first fixing member fixed to the wall, the second fixing member and the second wall fixing portion are Fixed. As a result, the disengagement between the first fixing member and the first wall fixing portion can be reliably regulated. Therefore, the electric water heater can be stably fixed to the wall.
In addition, when the first floor fixing portion is engaged with the first fixing member fixed to the floor, the second fixing member and the second floor fixing portion are fixed. Thereby, engagement cancellation | release with a 1st fixing member and the 1st fixing part for floors can be controlled reliably. Therefore, the electric water heater can be stably fixed to the floor.

In the present invention, preferably, the second wall fixing portion is provided on the rear wall of the casing, and the second floor fixing portion is provided on the bottom wall of the casing.
In the present invention configured as described above, since the second wall fixing portion is provided on the rear wall of the casing, when the rear wall of the casing is fixed to the wall, the second wall fixing portion or the second fixing portion is provided. The member can be concealed between the casing and the wall. Thereby, in the electric water heater in the installed state, the second wall fixing portion and the second fixing member are not exposed, and the appearance is not impaired.
Similarly, since the second floor fixing portion is provided on the bottom wall of the casing, when the casing bottom wall is fixed to the floor, the second floor fixing portion and the second fixing member are disposed between the casing and the floor. Can be concealed. Thereby, in the electric water heater in the installed state, the second floor fixing portion and the second fixing member are not exposed, and the appearance is not impaired.

In the present invention, preferably, each of the first wall fixing portion and the second wall fixing portion is a first recess and a second recess formed to be recessed forward with respect to the rear wall surface of the casing. Each of the first fixing member and the second fixing member can be fitted into the first recess and the second recess when the rear wall of the casing is fixed to the wall. The surfaces of the first fixing member and the second fixing member in the state of being fitted in the first recess and the second recess, respectively, and the rear wall surface of the casing face each other. It is set to be one.
In the present invention configured as described above, when the casing is fixed to the wall, each of the first wall fixing portion and the second wall fixing portion of the casing replaces each of the first fixing member and the second fixing member. Fixed to the wall through. At the time of such fixing, each of the first fixing member and the second fixing member is fitted to each of the first concave portion of the first wall fixing portion and the second concave portion of the second wall fixing portion, The wall-side surfaces of the first fixing member and the second fixing member and the rear wall surface of the casing are flush with each other.
Therefore, the casing can be stably fixed to the wall with almost no gap between the rear wall surface of the casing and the wall.

In the present invention, preferably, the first floor fixing portion is provided on the most rear wall side of the bottom wall of the casing, and is on the front side with respect to the first fixing member fixed to the floor. Can be engaged.
In the present invention configured as described above, when fixing the casing to the floor, the first floor fixing portion provided on the most rear wall side of the bottom wall of the casing is used as the first fixing member fixed to the floor. Move towards. Thereby, the 1st fixing part for floors can be easily engaged from the front side of the 1st fixing member.
Therefore, the workability when fixing the electric water heater to the floor can be improved.

In the present invention, preferably, the first wall fixing portion is located above the center of gravity of the electric water heater when the tank is full.
In the present invention configured as described above, when the casing is fixed to the wall, the first wall fixing portion of the casing is located above the center of gravity of the electric water heater when the tank is full. Thereby, compared with the case where the fixing part for the first wall of the casing is located at the same height as the center of gravity of the electric water heater when the tank is full and below it, the casing is separated from the wall. Since the tilting force can be suppressed, the electric water heater can be stably installed on the wall.
Moreover, it suppresses that excessive force acts with respect to the 1st wall fixing | fixed part and 1st fixing member, and the 1st wall fixing | fixed part and 1st fixing member are damaged because a casing inclines. Can do.

  According to the hot water storage type electric water heater of the present invention, the installation form can be appropriately selected according to the situation of the installation place, and the product cost and construction cost can be suppressed.

It is a schematic block diagram of the hot water storage type electric water heater by one Embodiment of this invention. When installing the hot water storage type electric water heater by one Embodiment of this invention in a wall, it is a schematic perspective view which shows the state before the main body of an electric water heater is fixed to a wall via a fixing member. It is the perspective view seen from the slanting back lower side about the main part of the hot water storage type electric water heater by one embodiment of the present invention. It is the perspective view which looked at the main body of the hot water storage type electric water heater by one Embodiment of this invention from diagonally backward lower side, and shows the state by which the main body was fixed to the wall via the fixing member. It is a rear view of the hot water storage type electric water heater by one Embodiment of this invention, and shows the state by which the main body was fixed to the wall via the fixing member. FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5, and is a partially enlarged view of a state in which the wall fixing portion and the first solid member of the hot water storage type electric water heater according to the embodiment of the present invention are engaged. It is. When installing the hot water storage type electric water heater by one Embodiment of this invention on a floor, it is a schematic perspective view which shows the state before the main body of an electric water heater is fixed to a floor via a fixing member. It is the perspective view which looked at the main body of the hot water storage type electric water heater by one Embodiment of this invention from diagonally backward lower side, and shows the state by which the main body was fixed to the floor via the fixing member. It is the partial side sectional view of the bottom part of the hot water storage type electric water heater by one Embodiment of this invention along the IX-IX line | wire of FIG. 8, and the fixing part for floors of an electric water heater and the 1st solid member were engaged. Indicates the state.

Hereinafter, a hot water storage type electric water heater according to an embodiment of the present invention will be described with reference to the accompanying drawings.
FIG. 1 is a schematic configuration diagram of a hot water storage type electric water heater according to an embodiment of the present invention.
First, as shown in FIG. 1, a hot water storage type electric water heater 1 according to an embodiment of the present invention includes an electric water heater main body 2 and an operation unit 4 that allows the electric water heater main body 2 to be operated. .
Next, as shown in FIG. 1, the electric water heater main body 2 includes a water passage 6, a hot water side electromagnetic valve 8, a water side electromagnetic valve 10, a hot water storage tank 12, an electric heater 14, a hot water mixing valve 16, An intake plug 18, an intake passage 20, a control unit 22, and the like are provided.
Moreover, as shown in FIG. 1, the electric water heater main body 2 is provided with the casing 24 provided so that the outer side of these internal elements 6-22 may be covered.
Furthermore, the hot water storage type electric water heater 1 of the present embodiment includes a first fixing member 26 and a second fixing member 28 (details will be described later) that enable the electric water heater body 2 to be fixed to a wall surface or a floor surface. Yes. Thereby, the electric water heater 1 is fixed to the wall surface or fixed to the floor surface by using the common first fixing member 26 and second fixing member 28 in accordance with the installation situation of the installation place. Can be done.
In addition, using the common 1st fixing member 26 and the 2nd fixing member 28, the case where the electric water heater main body 2 is fixed to a wall surface, and the case where it fixes to a floor surface, the concrete of the electric water heater 1 in each case Details of the fixing structure will be described later.

  Furthermore, as shown in FIG. 1, the operation unit 4 enables some settings of the electric water heater 1 to be operated. Specifically, the operation unit 4 can electrically operate settings related to the operation of each unit of the electric water heater 1 using electric power supplied from a power source (not shown). Each of the hot and cold mixing valve 16 and the intake plug 18 can be operated.

As shown in FIG. 1, the upstream side of the water passage 6 is connected to a water supply source (not shown) such as a water supply, so that water supplied from this water supply source (not shown) can pass therethrough. Thus, the downstream end of the water passage 6 is an outlet 6a of hot water or water that is set to an appropriate temperature.
Moreover, as shown in FIG. 1, the water flow path 6 is provided with the hot water side water flow path 30 and the water side water flow path 32, respectively.
The hot water side water passage 30 includes a tank water passage 30a and a tank bypass water passage 30b. The tank water passage 30 a is connected to the hot water storage tank 12, and the tank bypass water passage 30 b is connected to the hot water mixing valve 16 by bypassing the hot water storage tank 12.
The water-side water passage 32 is branched so as to be branched independently from the hot water-side water passage 30 on the upstream side of the water passage 6, and then connected again to the downstream side of the hot-water side water passage 30 on the downstream side of the water-side water passage 32. Has been.
Furthermore, the hot water side solenoid valve 8 and the water side solenoid valve 10 are provided in the hot water side water passage 30 and the water side water passage 32, respectively. These electromagnetic valves 8 and 10 function as on-off valves that open and close the water passages 30 and 32, respectively, and function as a part of the water supply system function unit.

Next, as shown in FIG. 1, the hot water storage tank 12 is a tank for storing water supplied from the tank water passage 30a.
As shown in FIG. 1, the electric heater 14 is provided in the hot water storage tank 12. The electric heater 14 functions as an electric heating unit that electrically heats the water in the hot water storage tank 12.
Further, as shown in FIG. 1, the hot water / water mixing valve 16 is provided at a connecting portion between the downstream side of the tank water passage 30 a on the downstream side of the hot water storage tank 12 and the downstream side of the tank bypass water passage 30 b. The hot water mixing valve 16 is a mixing valve that opens and closes the hot water side water passage 30 on the downstream side of the hot water storage tank 12 and mixes the hot water supplied from the hot water storage tank 12 and the water supplied from the tank bypass water passage 30b. It functions and functions as part of the water supply system function.

Next, as shown in FIG. 1, the intake plug 18 and the intake passage 20 are formed by opening the intake plug 18 when the water in the hot water storage tank 12 is drained, for example, during maintenance of the electric water heater 1. 12, and serves as a part of a water supply system functional unit that opens and closes the hot water storage tank 12.
Furthermore, as shown in FIG. 1, the control unit 22 is provided in the casing 24 and functions as a control unit that controls the operation of the electric water heater 1 in accordance with the operation of the operation unit 4. .

Next, with reference to FIGS. 2 to 9, for the hot water storage type electric water heater 1 of the present embodiment, the electric water heater main body 2 is attached to the wall surface W using the common first fixing member 26 and second fixing member 28. Or the detail of the fixing structure for fixing to the floor F is demonstrated.
First, with reference to FIGS. 2-6, the fixed structure in the case of installing the hot water storage type electric water heater 1 of this embodiment fixed to a wall surface is demonstrated concretely.
FIG. 2 is a schematic perspective view showing a state before the main body of the electric water heater is fixed to the wall via the fixing member when the hot water storage type electric water heater according to the embodiment of the present invention is installed on the wall. .
FIG. 3 is a perspective view of the main body of the hot water storage type electric water heater according to the embodiment of the present invention as viewed obliquely from the lower rear side.
Further, FIG. 4 is a perspective view of the main body of the hot water storage type electric water heater according to the embodiment of the present invention as viewed obliquely from the lower rear side, and shows a state in which the main body is fixed to the wall via a fixing member.
FIG. 5 is a rear view of the hot water storage type electric water heater according to the embodiment of the present invention, showing a state in which the main body is fixed to the wall via a fixing member.
6 is a cross-sectional view taken along the line VI-VI in FIG. 5 and shows a state in which the fixing part for the wall of the hot water storage type electric water heater according to the embodiment of the present invention is engaged with the first solid member. It is the figure which expanded partially.

First, as shown in FIGS. 2 and 3, the casing 24 of the electric water heater main body 2 includes a front wall 34 and a rear wall 36 provided in the front-rear direction, and a bottom wall 38 and an upper wall provided in the vertical direction, respectively. The wall 40 and the side walls 42 and 44 provided in the both sides of the left-right direction are provided. An operation unit 4 is provided on the front wall 34 of the casing 24.
Next, as shown in FIG. 3, the rear wall 36 of the casing 24 includes a rearmost wall surface 36 a positioned closest to the rear end side, and a recess 36 b that is recessed forward with respect to the rearmost wall surface 36 a.
2 to 4, a pair of left and right wall fixing holes 46a and 46b (first wall fixing portions) are formed in the recess 36b of the rear wall 36 of the casing 24, respectively.

Next, as shown in FIG. 2, the first fixing member 26 is a metal plate-like member. In the state before the electric water heater main body 2 is fixed to the wall surface W, the first fixing member 26 is a first fixing of the wall surface W via a pair of mounting holes 26a, 26b of the first fixing member 26 with a screw 48. It is designed to be fixed at the position P1.
As shown in FIG. 2, the first fixing member 26 includes a pair of left and right engaging protrusions 26c and 26d. Each of the engagement protrusions 26c, 26d protrudes obliquely forward and upward from the lower base end to the upper end.
As shown in FIG. 6, when the electric water heater main body 2 is fixed to the first fixing member 26 fixed to the wall surface W, a pair of wall fixing holes in the rear wall 36 of the casing 24. Each of the pair of engaging protrusions 26c and 26d can be inserted into each of 46a and 46b.
Further, as shown in FIG. 6, when the engaging protrusions 26 c and 26 d of the first fixing member 26 are inserted into the wall fixing holes 46 a and 46 b, the wall fixing of the electric water heater main body 2 is performed. The holes 46a and 46b can be engaged with rear wall portions 36c on the upper side. Thereby, the electric water heater main body 2 is fixed in a state of being hung on the wall surface W via the first fixing member 26.

Next, as shown in FIGS. 4 and 5, the second fixing member 28 can fix the casing 24 of the electric water heater main body 2 at a second fixing position P <b> 2 below the first fixing position P <b> 1 of the wall surface W. It is a metal or resin plate member.
Further, as shown in FIG. 3, a second fixing member mounting recess 50 and a second wall fixing portion to which the second fixing member 28 is attached at the left and right center of the lower end portion 36 a of the casing 24. A pair of convex parts 52 and 52 are provided. Thereby, the upper part of the 2nd fixing member 28 can be fitted in these recessed parts 50 and convex parts 52,52. Further, the recess 50 is provided with a screw hole 50a.
Further, as shown in FIGS. 4 and 5, a pair of fitting holes 28 a and 28 a and a single screw hole 28 b are provided in the upper portion of the second fixing member 28. In a state before the casing 24 is fixed to the wall surface W, the upper portion of the second fixing member 28 is fitted in the recessed portion 50 for attaching the second fixing member of the casing 24 in advance, and the second fixing member of the casing 24 is fitted. A pair of fitting holes 28a, 28a of the second fixing member 28 are fitted in advance to the pair of convex portions 52, 52 for attachment.
Then, as shown in FIGS. 3 to 5, the screw 54 is attached from the rear side to the screw hole 28 b of the second fixing member 28 that coincides with the screw hole 50 a of the recess 50, whereby the second fixing member 28. The upper part is fixed to the recess 50.

Next, as shown in FIG. 6, each of the wall fixing holes 46 a and 46 b of the casing 24 is engaged with each of the engaging protrusions 26 c and 26 d of the first fixing member 26 fixed to the wall surface W. When they are combined, each of the wall fixing holes 46a and 46b of the casing 24 is fixed to the first fixing position P1 of the wall surface W.
Thereafter, as shown in FIGS. 4 and 5, the screw 48 is attached from the front side toward the wall surface W with respect to the elongated hole 28 c in the lower portion of the second fixing member 28, so that the second fixing member 28 is made of the wall surface W. It is fixed at the second fixed position P2. The casing 24 is completely fixed at each of the first fixed position P1 and the second fixed position P2 of the wall surface W.

In particular, the second fixing member mounting concave portion 50 and the pair of convex portions 52 and 52 as the second wall fixing portion, and the second fixing member 28 are fixed to the wall surface W. And the first wall fixing holes 46a, 46b of the casing 24 are engaged with each other so as to function to restrict the disengagement between them.
Further, as shown in FIG. 4, the second wall fixing portion A similar to the concave portion 50 for mounting the second fixing member and the pair of convex portions 52, 52 described above is also provided on the left and right sides of the last wall surface 36 a of the casing 24. The second fixing member 28 can be attached to the second wall fixing portion A.
Thereby, also about the fixed part A for 2nd walls, engagement with the 1st fixing member 26 of the state fixed to the wall surface W with the 2nd fixing member 28, and the 1st wall fixing holes 46a and 46b of the casing 24 is carried out. It functions to regulate release.

Here, as shown in FIGS. 3 to 6, the first fixing member 26 is fitted in the concave portion 36 b of the casing 24, and the second fixing member 28 is fitted in the concave portion 50 and the convex portion 52 of the casing 24. Then, the surfaces A1 and A2 on the wall surface W side of each of the first fixing member 26 and the second fixing member 28 are set to be flush with each other with respect to the last wall surface 36a of the casing 24.
Thereby, the casing 24 can be stably fixed to the wall surface W with almost no gap between the last wall surface 36a of the casing 24 and the wall surface W.

Next, as shown in FIG. 5, the wall fixing holes 46 a and 46 b of the casing 24 are located above the center of gravity G of the electric water heater 1 when the hot water storage tank 12 is full.
As a result, the casing 24 has fixed holes 46 a and 46 b for the casing 24 that are located at the same height as and below the center of gravity G of the electric water heater 1 when the hot water storage tank 24 is full. Since the force which inclines in the direction away from the wall surface W can be suppressed, the electric water heater 1 can be stably installed on the wall surface W.
Further, when the upper portion of the casing 24 is tilted forward, an excessive force acts on the wall fixing holes 46a and 46b and the first fixing member 26, and the wall fixing holes 46a and 46b and the first fixing member 26 are moved. It is possible to suppress damage.

Next, with reference to FIG. 3 and FIGS. 7 to 9, a fixing structure in the case where the hot water storage type electric water heater 1 of the present embodiment is fixed and installed on the floor surface F will be specifically described.
FIG. 7 is a schematic perspective view showing a state before the main body of the electric water heater is fixed to the floor via the fixing member when the hot water storage type electric water heater according to the embodiment of the present invention is installed on the floor. .
FIG. 8 is a perspective view of the main body of the hot water storage type electric water heater according to the embodiment of the present invention as viewed obliquely from the lower rear side, and shows a state where the main body is fixed to the floor via a fixing member.
Further, FIG. 9 is a partial side sectional view of the bottom portion of the hot water type electric water heater according to the embodiment of the present invention along the line IX-IX of FIG. 8, wherein the floor fixing part and the first solid of the electric water heater are shown. The state which engaged with the member is shown.

First, as shown in FIG. 7, the first fixing member 26 is a pair of mounting holes 26 a and 26 b of the first fixing member 26 by screws 48 in a state before the electric water heater main body 2 is fixed to the floor surface F. It is fixed to the first fixing position Q1 of the floor surface W via. Thus, the first fixing member 26 can be used both when the casing 24 is fixed to the wall surface W and when it is fixed to the floor surface F.
Further, as shown in FIG. 7, each of the engagement protrusions 26 c and 26 d of the first fixing member 26 fixed to the floor surface F is obliquely forward and upward from the base end on the rear side to the front end on the front side. Protrudes toward.

Next, as shown in FIG. 3, a plurality of legs 58, 60, 62 are provided on the bottom wall 38 of the casing 24 of the electric water heater main body 2.
As shown in FIGS. 3, 8 and 9, the leg portion 58 is provided on the bottom wall 36 of the casing 24 closest to the rear wall 36. Further, on the rear side of the leg portion 58, a floor fixing for engaging with each of the pair of engaging protrusions 26c, 26d of the first fixing member 26 fixed to the floor surface F from the front side. Engagement portions 64b and 64a (first floor fixing portions) are provided.
As shown in FIGS. 3 and 7 to 9, when the casing 24 is fixed to the floor surface F, the floor surfaces of the engaging portions 64 b and 64 a provided on the most rear wall 36 side in the bottom wall 36 of the casing 24 are described. By moving from the front side toward the rear side toward the first fixing member 26 fixed to F, the engagement protrusions 26c and 26d of the first fixing member 26 can be engaged from the front side. It has become.
In addition, when the engaging portions 64 b and 64 a and the engaging protrusions 26 c and 26 d are engaged with each other, the electric water heater main body 2 is fixed to the floor surface F via the first fixing member 26. Yes.

Next, as shown in FIGS. 3, 8 and 9, the leg portions 60, 62 are recessed portions 60 a, 62 a (second floor fixing portions) for attaching second fixing members that are recessed upward from the lower end side. ), And the second fixing member 28 can be fitted into the recesses 60a and 62a from below.
Also, as shown in FIGS. 3 and 8, a pair of convex portions 60b, 60b and a pair of convex portions 62b, 62b for attaching the second fixing member are provided in the concave portions 60a, 62a, respectively. Screw holes 60c and 62c are provided.
Accordingly, in a state before the casing 24 is fixed to the floor surface F, a part of the second fixing member 28 is fitted in the recess 60a or 62a for attaching the second fixing member of the casing 24 in advance. The pair of fitting holes 28a, 28a (see FIG. 8) of the second fixing member 28 are fitted in advance with respect to the pair of convex portions 60b, 60b or the convex portions 62b, 62b for mounting the 24 second fixing member. It has become.
Then, as shown in FIG. 8, the screw 54 is attached from below to the screw hole 28b of the second fixing member 28 that coincides with the screw hole 60c or 62c in the recess 60a or 62a. Is fixed to the recess 60a or 62a.
In the present embodiment shown in FIG. 8, the second fixing member 28 is fixed to the recess 60 a of only the leg portion 60, but the second fixing member 28 is fixed to the recess 62 a of the leg portion 62. It may be fixed to each of the recessed parts 60a and 62a of both leg parts 60 and 62.

Next, as shown in FIG. 9, each of the engaging protrusions 26 c and 26 d of the first fixing member 26 in a state where the engaging portions 64 b and 64 a for fixing the floor of the casing 24 are fixed to the floor surface F, respectively. When engaged with each other, the floor fixing engaging portions 64b and 64a of the casing 24 are fixed to the first fixing position Q1 of the floor surface F, respectively.
Thereafter, as shown in FIGS. 8 and 9, the screws 48 are attached from the upper side to the floor surface F with respect to the elongated holes 28 c of the second fixing member 28, so that the second fixing member 28 becomes the first of the floor surface F. 2 It is designed to be fixed at a fixed position Q2. Then, the casing 24 is completely fixed at each of the first fixed position Q1 and the second fixed position Q2 of the floor surface F.

  In particular, the concave portion 60a (or 62a) for mounting the second fixing member, which is the second wall fixing portion, the pair of convex portions 60b and 60b (or 62b and 62b), and the second fixing member 28 are provided on the floor surface F. The first fixing member 26 in a fixed state and the floor fixing engaging portions 64a and 64b of the casing 24 are engaged with each other so as to restrict the disengagement of both.

Here, as shown in FIGS. 8 and 9, the engaging protrusions 26 c and 26 d of the first fixing member 26 engage with the engaging portions 64 b and 64 a for fixing the floor of the casing 24, respectively. In a state where the member 28 is fitted in the concave portion 60a and the convex portion 60b for attaching the second fixing member of the casing 24, the lower end surface of each leg portion 58, 60, 62, the first fixing member 26, and the second fixing member. The surfaces A1 and A2 on each floor surface F side of 28 are set so as to be flush with each other with respect to the floor surface F.
Thereby, the lower end surface of each leg part 58,60,62 of the casing 24, and between the floor surface F side surface A1, A2 and the floor surface F of the 1st fixing member 26 and the 2nd fixing member 28, respectively. The casing 24 can be stably fixed to the floor surface W with almost no gap.

Below, with reference to FIGS. 1-9, the effect | action of the hot water storage type electric water heater 1 by one Embodiment of this invention is demonstrated.
According to the hot water storage type electric water heater 1 according to the embodiment of the present invention described above, the fixing members 26 and 28 that can be used both when the casing 24 is fixed to the wall surface W and when it is fixed to the floor surface F are provided. By using, the casing 24 can be fixed to the wall surface W or the floor surface F via the common fixing members 26 and 28.
Further, when the rear wall 36 of the casing 24 is fixed to the wall surface W, the first wall fixing portion (wall fixing holes 46a, 46b) of the casing 24 with respect to the first fixing member 26 fixed to the wall surface W. ) Can be engaged.
Furthermore, even when the bottom wall 38 of the casing 24 is fixed to the floor surface F, the first fixing member 26 is used to fix the first wall 26 of the casing 24 to the first fixing member 26 fixed to the floor surface F. One floor fixing portion (floor fixing engaging portions 64a and 64b) can be engaged.
Therefore, regardless of whether the casing 24 is fixed to the wall surface W or the floor surface F, the first fixing member 26 can be made common, so that product costs and construction costs can be suppressed.
Moreover, since the installation form which fixes the casing 24 to the wall surface W and the installation form which fixes to the floor surface F can be selected suitably according to the condition of the installation place of the electric water heater 1, workability of the electric water heater 1 is sufficient. Can also be improved.

Further, according to the hot water storage type electric water heater 1 of the present embodiment, the first wall fixing portion (the wall fixing hole 46a) is formed on each of the engaging protrusions 26c and 26d of the first fixing member 26 fixed to the wall surface W. , 46b) are engaged with each other, the second fixing member 28 and the second wall fixing portion (the second fixing member mounting concave portion 50 and the convex portion 52) are fixed. Thereby, the engagement release of each engagement protrusion 26c, 26d of the first fixing member 26 and the first wall fixing portion (wall fixing holes 46a, 46b) can be reliably restricted. Therefore, the electric water heater 1 can be stably fixed to the wall surface W.
In the state where the first floor fixing portions (floor fixing engaging portions 64b, 64a) are engaged with the engaging protrusions 26c, 26d of the first fixing member 26 fixed to the floor F. The second fixing member 28 and the second floor fixing portion (the concave portions 60a and 62a and the convex portions 60b and 62b for attaching the second fixing member) are fixed. Accordingly, the disengagement between the engagement protrusions 26c and 26d of the first fixing member 26 and the first floor fixing portion (floor fixing engagement portions 64b and 64a) can be reliably regulated. Therefore, the electric water heater 1 can be stably fixed to the floor surface F.

Furthermore, according to the hot water storage type electric water heater 1 of the present embodiment, the second wall fixing portion (the concave portion 50 and the convex portion 52 for attaching the second fixing member) is provided on the rear wall 36 of the casing 24. When the rear wall 36 of the casing 24 is fixed to the wall surface W, the second wall fixing portion (the concave portion 50 and the convex portion 52 for attaching the second fixing member) and a part of the second fixing member 28 are fixed to the casing 24 and the wall surface. It can be concealed with W. Thereby, in the electric water heater 1 in the installed state, the second wall fixing portion (the concave portion 50 and the convex portion 52 for attaching the second fixing member) and a part of the second fixing member 28 are not exposed, and the appearance There is no loss of sex.
Similarly, since the second floor fixing portions (the concave portions 60 a and 62 a and the convex portions 60 b and 62 b for attaching the second fixing member) are provided on the leg portions 60 and 62 of the bottom wall 38 of the casing 24, the casing 24. When the bottom wall 38 is fixed to the floor surface F, the second floor fixing portion (the second fixing member mounting concave portions 60a and 62a and the convex portions 60b and 62b) and a part of the second fixing member 28 are part of the casing 24. And the floor surface F can be concealed. Thereby, in the electric water heater 1 in the installed state, the second floor fixing part (the concave parts 60a and 62a and the convex parts 60b and 62b for attaching the second fixing member) and a part of the second fixing member 28 are exposed. There is no loss of appearance.

Further, according to the hot water storage type electric water heater 1 of the present embodiment, when the casing 24 is fixed to the wall surface W, the first wall fixing portion (wall fixing holes 46a, 46b) and the second wall fixing of the casing 24 are performed. Each of the portions (the second fixing member mounting concave portion 50 and the convex portion 52) is fixed to the wall surface W via the first fixing member 26 and the second fixing member 28. At the time of such fixing, the first fixing member 26 and the second fixing member 28 respectively correspond to the first concave portion 36b of the first wall fixing portion and the second concave portion 50 of the second wall fixing portion. The surfaces A1 and A2 on the wall surface W side of the first fixing member 26 and the second fixing member 28 and the last wall surface 36a of the casing 24 are flush with each other.
Therefore, the casing 24 can be stably fixed to the wall surface W with almost no gap between the last wall surface 36a of the casing 24 and the wall surface W.

Furthermore, according to the hot water storage type electric water heater 1 of the present embodiment, when the casing 24 is fixed to the floor surface F, the first floor fixing portion (the first floor fixing portion provided on the most rear wall 36 side in the bottom wall 38 of the casing 24 ( The floor fixing engaging portions 64b and 64a) are moved toward the engaging protrusions 26c and 26d of the first fixing member 26 fixed to the floor surface F. Accordingly, the first floor fixing portion (floor fixing engaging portions 64b and 64a) can be easily engaged from the front side of the first fixing member 26.
Therefore, the workability in the case of fixing the electric water heater 1 to the floor surface F can be improved.

Further, according to the hot water storage type electric water heater 1 of the present embodiment, when the casing 24 is fixed to the wall surface W, the first wall fixing portions (wall fixing holes 46a and 46b) of the casing 24 are filled with water in the hot water storage tank 12. It is located above the center of gravity G of the electric water heater 1 at the time. Accordingly, the first wall fixing portion (wall fixing holes 46a, 46b) of the casing 24 is positioned at the same height as the gravity center G of the electric water heater when the hot water storage tank 12 is full and below it. Compared with the case, since the force which inclines the casing 24 in the direction away from the wall surface W can be suppressed, the electric water heater 1 can be stably installed on the wall surface W.
Further, when the casing 24 is inclined, an excessive force acts on the first wall fixing portions (wall fixing holes 46a and 46b) and the engagement protrusions 26c and 26d of the first fixing member 26, and the first wall. It can suppress that the fixing part (wall fixing holes 46a, 46b) and the first fixing member 26 are damaged.

In the hot water storage type electric water heater 1 according to one embodiment of the present invention and the hot water storage type electric water heater 100 according to the second embodiment described above, the hot water side solenoid valve 8 on the upstream side (primary side) of the hot water storage tank 12 is operated. Although the form which employ | adopted what is called "original stop type" which can stop water by doing was demonstrated, it is employable also about another form.
That is, as another form, a so-called “first stop type” that can stop water by operating an on-off valve or the like on the downstream side (secondary side) of the hot water storage tank 12 may be adopted. When such a “first stop type” is adopted, for example, a relief valve may be provided in the hot water storage tank 12 and a relief valve lever for manually operating the relief valve may be provided in the operation unit 4. As a result, in the event of malfunction of the relief valve due to sticking of the valve body of the relief valve, the relief valve lever is opened by operating the relief valve lever so that the malfunction of the relief valve can be resolved. Also good.

DESCRIPTION OF SYMBOLS 1 Hot water storage type electric water heater 2 Electric water heater body 4 Operation part 6 Water passage 6a Outlet 8 Hot water side solenoid valve (water supply system function part)
10 Water side solenoid valve (water supply system function part)
12 Hot water storage tank (tank)
14 Electric heater (electric heating unit)
16 Hot and cold water mixing valve (water supply system function unit, mixing valve)
18 Intake tap (water supply system function part)
20 Intake channel (water supply system function unit)
22 Control unit (control unit)
24 Casing 26 First fixing member 26a Mounting hole 26b Mounting hole 26c Engaging protrusion 26d Engaging protrusion 28 Second fixing member 28a Fitting hole 28b Screw hole 28c Long hole 30 Hot water side water passage 30a Tank water passage 30b Tank bypass Water passage 32 Water side water passage 34 Front wall of casing 36 Rear wall of casing 36a Last wall surface 36b Recessed portion (first recessed portion of first wall fixing portion)
36c Rear wall portion 38 Bottom wall of casing 40 Upper wall of casing 42 Side wall of casing 44 Side wall of casing 46a Wall fixing hole (first wall fixing portion, first recess)
46b Wall fixing hole (first wall fixing portion, first recess)
48 Screw 50 Recess for mounting second fixing member (second wall fixing portion, second recess)
50a Screw hole 52 Convex part for attaching the second fixing member (second wall fixing part)
54 Screws 58 Legs 60 Legs 60a Recesses for mounting the second fixing members (second floor fixing parts)
60b Convex part for attaching the second fixing member (second floor fixing part)
60c Screw hole 62 Leg 62a Recess for attaching second fixing member (second floor fixing)
62b Convex part for attaching the second fixing member (second floor fixing part)
62c Screw hole 64a Engaging portion for floor fixing (first floor fixing portion)
64b engaging portion for fixing the floor (first floor fixing portion)
A 2nd wall fixing part A1 wall side surface of first fixing member A2 wall side surface of second fixing member P1 first fixing position P2 second fixing position Q1 first fixing position Q2 second fixing position W wall surface F Floor

Claims (6)

A hot water storage type electric water heater that can supply hot water
A water passage through which water supplied from a water supply source passes,
A tank for storing water supplied from this water passage,
An electric heating unit for electrically heating the water in the tank;
A water supply system function unit for opening and closing the water passage or the tank;
A casing provided to cover the water passage, the tank, the electric heating unit, and the water supply system function unit from the outside;
A fixing member that can be used for both the case where the casing is fixed to the wall and the case where the casing is fixed to the floor, and which can be fixed to both the wall and the floor,
The casing includes a front wall and a rear wall provided in the front-rear direction, a bottom wall and an upper wall provided in the up-down direction, and side walls provided on both sides in the left-right direction,
The casing includes a wall fixing portion that can be fixed to the wall via the fixing member when the wall is subsequently fixed to the wall, and the wall fixing portion is fixed to the wall. Engageable with the member,
The casing includes a floor fixing portion that can be fixed to the floor via the fixing member when the bottom wall is fixed to the floor, and the floor fixing portion is fixed to the floor. An electric water heater characterized by being engageable with a fixing member. The fixing member includes a first fixing member and a second fixing member, respectively, capable of fixing the casing to each of a first fixing position and a second fixing position on the wall or the floor,
The fixing portion for the wall is provided on the rear wall of the casing so as to be fixable to the first fixing position of the wall via the first fixing member when the rear wall of the casing is fixed to the wall. A first wall fixing portion; and a second wall fixing portion that can be fixed to the second fixing position of the wall via the second fixing member, the second fixing member and the second wall The fixing portion regulates the disengagement between the first fixing member in a state fixed to the wall and the first wall fixing portion engaged with the first fixing member.
The floor fixing portion is provided on the bottom wall so as to be fixable to the first fixing position of the floor via the first fixing member when the bottom wall of the casing is fixed to the floor. A floor fixing portion; and a second floor fixing portion that can be fixed to the second fixing position of the floor via the second fixing member, the second fixing member and the second floor fixing portion. The electric water heater according to claim 1, wherein the disengagement of the first floor is restricted in a state in which the first floor fixing portion is engaged with the first fixing member fixed to the floor.   The electric water heater according to claim 2, wherein the second wall fixing portion is provided on a rear wall of the casing, and the second floor fixing portion is provided on a bottom wall of the casing. Each of the first wall fixing portion and the second wall fixing portion is provided in a first recess and a second recess formed to be recessed forward with respect to the rear wall surface of the casing, respectively. Each of the first fixing member and the second fixing member can be fitted to each of the first recess and the second recess when the rear wall of the casing is fixed to the wall.
The wall surface of each of the first fixing member and the second fixing member in a state fitted in each of the first recess and the second recess is flush with the rear wall surface of the casing. The electric water heater according to claim 3, which is set as follows.   The first floor fixing portion is provided on the most rear wall side of the bottom wall of the casing, and is engageable with the first fixing member fixed to the floor from the front side. Item 5. The electric water heater according to any one of Items 2 to 4.   The electric water heater according to any one of claims 2 to 4, wherein the first wall fixing portion is positioned above the center of gravity of the electric water heater when the tank is full.

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