JPH0354659Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an electric water heater that heats and keeps a stored liquid warm.

2. Description of the Related Art In a conventional electric water heater of this type, a rotary lever 101 for operating a manual return type steam detection thermostat is mounted as shown in FIG. That is, the lever 101
A rotation shaft 102 is provided above the operating portion 103 of the lever 101.
When operating lever 10, apply force in the direction of arrow a.
By rotating the lever 101, a force is applied to a vapor detection thermostat (not shown). Under normal conditions, the lever 101 is biased in the direction of arrow b by a spring or the like, and the window 105 of the display board 104 is biased. The operating portion 103 of the lever 101 comes into contact with the upper end of the lever 101 and stops.

Problems to be Solved by the Invention However, in such a conventional configuration, a gap is created between the lower part of the window 105 of the display board 104 and the lever 101, so if water is accidentally spilled on the display board 104. As shown by the arrow c, water may enter the inside of the display panel 104 and further reach electrical components such as a thermostat inside the body, causing a risk of deteriorating the insulation, posing a safety problem. In addition, in order to prevent this, it is necessary to
It would be possible to change the position of the container by a large amount, but in this case, there were significant design constraints, and if the vessel became larger, it would also pose a big problem in terms of cost.

The purpose of this invention is to solve these conventional problems, and to provide an electric water heater that is safer, has fewer design restrictions, and is inexpensive. It is something.

Means for Solving the Problems In order to solve the above problems, the present invention provides a bottomed cylindrical container containing a liquid, a heating device provided at the lower part of the container, and an upper part of the container. and a manually reset steam detection thermostat provided at a position opposite to a corner of a substantially rectangular cylindrical container outer shell that covers the container; and a lever-mounted thermostat forming a part of the front surface of the container outer shell. a display board having a window;
Place the operation unit facing the lever mounting window on this display board.
and a lever for operating the thermostat that is rotatably mounted inside the display board, with the operating part of the lever being located below the axis of the lever, and the operating part being arranged in the direction of extension of the operating part. a point of action that operates the switch portion of the thermostat at a predetermined angle and laterally away from the thermostat;
In addition, when the lever is not operated, the front surface of the lever is in contact with the inner surface of the display board.

Effect: According to this configuration, there is no gap between the lever and the lever mounting window on the display board, so water will not enter the body of the device, and as a result, safety can be improved. Furthermore, since there is no need to increase the number of parts, the cost can be reduced.

Embodiment Hereinafter, an embodiment of the present invention will be described based on the accompanying drawings. In Figures 1 to 3, reference numeral 1 denotes a substantially rectangular cylindrical outer container body, and a spout 2 is fixed to the upper opening of the outer container body 1, and a bottom plate 3 is integrally attached to the lower end. ing. Reference numeral 4 denotes an upper lid that is attached to the spout 2 so as to be freely openable and closable. Further, a shielding plate 6 made of a stainless steel plate or the like is fixed to the lower surface of the upper lid 4 with screws or the like, and a ventilation hole 7 having an L-shaped passage is provided at the bottom of the shielding plate 6. .

Reference numeral 8 denotes a cylindrical container with a bottom that is installed inside the container outer body 1 and contains a liquid. There is. Reference numeral 11 denotes a mounting tube provided at the upper part of the container 8 and at a position facing the corner of the container outer shell 1, and to which a manually reset type vapor detection thermostat 19 is attached.
1 is configured to communicate with the ventilation hole 7.
Further, a heating device 18 is provided at the bottom of the container 8.

12 is a shaft 13 inserted into the hole of the mounting rib 2a of the spout 2.
This lever 12 is for operating the thermostat 19, and is rotatably mounted by setting the lever 12.
The operation part 14 is located in the lever mounting window 16 of the display board 15.
It protrudes more outward. Furthermore, this lever 12
The front surface of the display board 1 is fixed by a spring (not shown) in the normal state, that is, when the lever 12 is not operated.
It is made to come into contact with the inner surface of 5. Further, the operating portion 14 of the lever 12 is located below the shaft 13. Reference numeral 17 indicates a point of action of the lever 12, and this point of action 17 is spaced laterally from the extending direction of the operating portion 14.
The thermostat 19 is set at a predetermined angle by pressing the switch portion 19a of the thermostat 19.

The operation in the above configuration will be explained. After pouring water into the container 8, operate the lever 12 in the direction of arrow A to set the steam detection thermostat 19 to ON and start energizing, which will supply power to the heating device 18 and heat the water in the container 8. be done. When the water temperature reaches the boiling point, a large amount of steam is generated and this steam enters the mounting tube 11 to raise the temperature of the thermostat 19 and turn it off. If you want to boil the water again, just operate the lever 12 again in the direction of arrow A in FIG. Further, since the lever 12 is normally urged in the direction of arrow B by a spring (not shown) and is in contact with the inner surface of the display board 15, there is a gap between the lower part of the lever mounting window 16 of the display board 15 and the lever 12. will disappear.

Effects of the invention As described above, according to the invention, the operating part of the lever is positioned downward by the shaft of the lever, and when the lever is not operated, the front surface of the lever comes into contact with the inner surface of the display board. Because of this structure, there is no gap between the lever mounting windows on the display board, and as a result, water will not infiltrate into the body, improving safety. Even if the thermostat gets wet, the thermostat will not get wet because the thermostat is placed at a predetermined angle to the window and apart from the lever mounting window. Furthermore, since the thermostat is provided at the corner of the outer body of the container, sufficient space for installation can be secured. As described above, the present invention does not require special parts and can be achieved by modifying existing parts, so there are no design restrictions and it can be provided at low cost.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of essential parts of an electric water heater showing an embodiment of the present invention, Fig. 2 is a partially cutaway perspective view of the water heater, Fig. 3 is a vertical sectional view of the water heater, and Fig. 4 1 is a sectional view of a main part of a conventional electric water heater. DESCRIPTION OF SYMBOLS 1... Container outer body, 8... Container, 12... Lever, 13... Shaft, 14... Operating unit, 15... Display board, 16... Lever mounting window, 18... Heating device, 19... ...vapor detection thermostat.

Claims (1)

[Scope of utility model registration request] A cylindrical container with a bottom for containing a liquid, a heating device provided at the bottom of the container, and a position located above the container and facing a corner of a substantially rectangular cylindrical outer body of the container that covers the container. a manual return steam detection thermostat installed in the container, a display board forming a part of the front surface of the outer shell of the container and having a lever mounting window, and an operating section in the lever mounting window of the display board. and a lever for operating the thermostat which is rotatably mounted on the inside of the display board, with an operating part of the lever located below the axis of the lever, and a lever for operating the thermostat. has a point of action that operates the switch part of the thermostat at a predetermined angle and is laterally away from the extension direction of the part, and when the lever is not operated,
The electric water heater is configured such that the front surface of the lever comes into contact with the inner surface of the display board.