JP2605809B2 - Electric water heater - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to an electric water heater used in ordinary households.

2. Description of the Related Art In a conventional electric water heater, a turntable attached to a lower portion of a turntable for rotating the turntable is formed by dividing a turntable fixed to a turntable support into a bottom portion and a peripheral ring-shaped portion. Was composed. Further, it has an intermediate terminal for supplying commercial power to a control device and the like.

Problems to be Solved by the Invention In the configuration of such a conventional electric water heater, since a terminal block for connecting a lead wire to a turntable fixed to a turntable support from below is provided, first, the lead wire is connected to the turntable. It must be connected to the terminal block of the turntable, and this turntable must be fixed to the turntable support. In this case, it is very difficult to fix the turntable to the turntable support due to the presence of the lead wire. Conventionally, this turntable is divided into a bottom portion and a peripheral ring-shaped portion, and the length of the lead wire is long. Therefore, since the number of parts increases, the cost increases and the number of man-hours for the assembling work also increases. As a result, the rate of occurrence of defects increases, and the reliability is not very good.

An object of the present invention is to provide an electric water heater that has solved such problems.

Means for Solving the Problems In order to solve the above problems, the present invention provides a hot water temperature control device located below a container, and a substantially circular shape located below the hot water temperature control device and covering a lower end opening of a container. A plate-shaped cover, a substantially disk-shaped turntable receiver located below the cover, and a turntable attached to the turntable receiver from below, wherein the turntable receiver is a disc-shaped holding plate. And the ends of the lead wires of the heater and the hot water temperature control device are connected to the terminal plate of the terminal block, and the terminal block and the turntable receiver are fitted together. An electric water heater in which the terminal block and the rotary table are fitted.

According to the above configuration, the ends of the lead wires of the heater and the hot water temperature control device coming out of the inner space of the housing are mounted near the outer periphery of the turntable support and the terminal of the terminal block to which the terminal rod is fixed. Because it is connected to the board, it is not necessary to divide the turntable fixed to the turntable receiver into a bottom part and a peripheral ring-shaped part as in the past, and no lead wire is wired to the turntable. Since the turntable can be used in a substantially dish-like shape, and the wiring of lead wires does not require an intermediate terminal as in the related art, it is possible to improve the assembly workability. At the same time, the cost can be reduced and the reliability can be improved.

Embodiment Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

In the figure, reference numeral 1 denotes a cylindrical container formed of a thin plate such as stainless steel, and the container 1 is supported by being suspended in a cylindrical container 2. Further, a stepped projection is formed in the bottom of the container 1 in a concentric circle shape, and a donut-shaped flat heater 3 is provided at an intermediate portion thereof by a holding metal fitting 3a. Container 1 located nearby
A plurality of U-shaped container support plates 4 are attached to the outer surface of the bottom of the container. Reference numeral 5 denotes a substantially disk-shaped cover for covering the lower end opening of the vessel 2, and this cover 5 is a ring-shaped portion 6 protruding from the lower surface.
A disk-shaped holding plate 7 is fitted into the inside of the container, and the substantially disk-shaped cover 5 is fixed together with the disk-shaped holding plate 7 to the container support plate 4 with screws 8 to thereby mount the container 1. It is pulled down and fixed. A hot water temperature controller 10 is provided in a space 9 substantially at the center between the cover 5 and the bottom of the container 1. Also, on the lower surface near the outer periphery of the cover 5,
A plurality of protrusions 11 each having a spherical end are provided so as to protrude downward, and a ring-shaped groove 12 having a semicircular cross section to be fitted with the protrusions 11 is provided on the upper surface of the turntable support 13. .

The turntable support 13 is provided with a cap-shaped support frame 15 with a flange fixed to the center of the holding plate 7 from below by screws 14.
To be rotatably fitted to. In addition, a projection 16 is integrally formed on a part of the lower surface of the turntable support 13 so as to protrude downward.
A terminal block 19 is fitted to the projection 16, and the terminal block 19 has a terminal rod 17 facing outward of the body 2 and a terminal plate located inward.
18 is provided, and the terminal rod 17 and the terminal plate 18 are electrically connected.

The lead wire 20 led out from the heater 3 or the hot water temperature control device 10 penetrates a part of the support frame 15, and the middle thereof is held by the holding portion 21 of the support frame 15. Further, the end of the lead wire 20 is connected to the terminal plate 18.

As described above, after the connection of the lead wires 20 is completed, the substantially dish-shaped turntable 22 is fixed to the turntable support 13 with screws 23 from below, so that the turntable 22 allows the lead wires 20 and the terminal plate to be fixed. 18 is covered.

As is clear from the above configuration, in one embodiment of the present invention, based on the container 2, the container 2 is provided with a substantially disk-shaped cover 5, a disk-shaped holding plate 7, Carousel support
13, a terminal block 19, a support frame 15, and a turntable 22 are sequentially stacked and assembled. Further, the lead wire 20 is pulled out from the support frame 15, the middle thereof is held by the holding portion 21, and the end thereof is simply connected to the terminal plate 18, and no intermediate terminal as in the related art is interposed.

Therefore, in one embodiment of the present invention, the assembling work and the wiring of the lead wire 20 can be easily performed.

In the above embodiment, the substantially disk-shaped cover 5 is used.
A plurality of projections 11 are provided on the lower surface near the outer periphery of the base, and a ring-shaped groove 12 that fits with the projections 11 is provided in a substantially disk-shaped turntable support.
The description has been made with respect to the one provided on the upper surface of the cover 13. On the contrary, a ring-shaped groove is provided on the lower surface of the substantially disk-shaped cover 5, and a plurality of Even if the projection is provided, the same operation and effect as those of the above-described embodiment can be obtained.

According to the present invention, as is clear from the description of the above embodiment, the end of the lead wire of the heater or hot water temperature control device coming out of the inner space of the housing is mounted near the outer periphery of the turntable support. ,
In addition, since the terminal bar is connected to the terminal plate of the fixed terminal block, it is no longer necessary to divide the turntable fixed to the turntable support into a bottom part and a peripheral ring-shaped part as in the past. Since there is no lead wire wired on the base, the turntable can be used in a generally dish-shaped unit.Also, in the wiring of the lead wires, the intermediate terminal as in the conventional case is unnecessary. Thus, assembling workability can be improved, cost can be reduced, and reliability can be improved.

[Brief description of the drawings]

FIG. 1 is a partially cutaway sectional view of an electric water heater showing one embodiment of the present invention. DESCRIPTION OF SYMBOLS 1 ... container, 2 ... body, 3 ... heater, 4 ... container support plate, 5 ... cover, 7 ... holding plate, 9 ... space, 10 ...
... Hot water temperature control device, 13 ... Rotating table support, 15 ... Support frame, 17
…… Terminal rod, 18… Terminal board, 19… Terminal block, 20… Lead wire, 22… Turn table.

Claims (1)

(57) [Claims] 1. A hot water temperature control device located below a container, a substantially disc-shaped cover located below the hot water temperature control device and covering a lower end opening of a container, and located below the cover. A rotating base support having a substantially disk shape, and a rotary base mounted on the rotary base support from below, wherein the rotary base support is fitted to a support frame fixed to the lower surface of the disk-shaped holding plate; ,
The ends of the lead wires of the heater and the hot water temperature control device were connected to the terminal plate of the terminal block, and the terminal block and the turntable receiver were fitted, and the terminal block and the turntable were fitted. Electric water heater.