JPH0937941A - Electric heater - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent foreign matter and a liquid from entering the inside of a device by disposing a shielding plate for shielding a slit where a preset temperature varying operation lever is projected in a main body case, and forming a second slit shifted in the vertical direction to the first slit where the operation lever is pierced on the shielding plate. SOLUTION: A SAKE eater comprises a liquid storing container 2 for storing SAKE, and a main body 12 for removably placing the container 2, wherein the main body 12 is provided with a heating board 15 for removably placing the container on an upper opening of a main body case 13 and heating the same. A sheath heater 16 current-carrying controlled by a temperature detecting device 17 is buried in the heating board 15. In this case, a shielding plate 38 is disposed at a designated space from the inside wall of the case 13 inside a control panel 3, and the shielding plate is provided with a second slit 39 where an operation lever 32 is passed. The first slit 40 formed on the case 13 and the second slit 39 are shifted in the vertical direction to stop entering of foreign matter or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric heater for heating a liquid container containing alcohol, milk and the like to a predetermined temperature by a heater provided at a lower portion.

[0002]

2. Description of the Related Art A conventional general electric heater is configured to heat a liquid such as liquor or milk contained in the container to a predetermined temperature by a heating body provided at the bottom of the container. To control the heating element to this predetermined temperature, a temperature detecting device made of a bimetal plate is provided below the container or the heating plate, and when the temperature of the container sensed by the temperature detecting device reaches a set value, the heating element is energized. It is designed to stop. The temperature setting of the temperature detection device is performed by a slide type operation lever, one end of the slide type operation lever is supported by the temperature detection device, the other end is exposed through a horizontally elongated slit integrally formed in the heater body, It is configured to be set by sliding in the lateral direction.

[0003]

However, in such an electric heater, since the slit through which the operating lever penetrates is always open, a wire or the like is passed through the slit by a child's mischief. There is a possibility of being inserted inside, and there is a risk of electric shock when touching the periphery of the temperature detecting device, which is a heavy electric part.

Further, since one end of the operation lever is exposed from the main body of the device, when the user accidentally overflows a liquid such as alcohol or milk near the operation lever, the liquid is transmitted to the inside of the device through the operation lever. If liquid enters the temperature detection device, insulation may be deteriorated and electric shock may occur.

The present invention has been made in view of the above problems, and provides an electric heater which prevents foreign matter or liquid from entering the inside of the device through the slit of the operation lever and prevents accidents such as electric shock. The purpose is to

[0006]

A heating plate having a heater, a main body case in which the heating plate is arranged, a liquid container placed on the heating plate, and a liquid container provided in the main body case, The operating lever includes a temperature detecting device that detects the temperature of the liquid container and operates when the temperature reaches a set temperature and stops energizing the heater, and an operating lever that changes the set temperature of the temperature detecting device. In an electric heater having a free end protruding laterally through a first lateral slit of the main body case as an operating portion and slidably operated in the lateral direction, the slit is shielded inside the main body case. A shield plate was provided, and a second slit through which the operation lever penetrates and slides was formed on the shield plate, and the shield plate was arranged at a position vertically different from that of the first slit.

Further, the second slit is arranged above the first slit. Further, the operation lever has a bent portion formed between the main body case and the shielding plate and descending from the temperature detection device side toward the main body case side.

Further, a lamp for indicating the operating state of the device is fixed to the shielding plate, and a through hole is provided in the main body case at a position facing the lamp.

Further, a hole is formed in the bottom plate of the main body case located below the gap formed by the main body case and the shielding plate.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION A sake canister according to an embodiment of the present invention shown in FIGS. 1 to 3 will be described in detail below. FIG. 1 is a side view of the alcoholic beverage dispenser of the present invention, and FIG. 2 is a cross-sectional view of a main part cut from AA of FIG. In the figure, reference numeral 1 denotes a sake container comprising a liquid storage container 2 for storing liquor and a main body 12 on which the liquid storage container 2 is detachably mounted, 3 denotes a control panel, 4 denotes a lateral slide. The temperature control knob 5 is a lamp that lights up when the heater is energized, and 37 is a power switch.

The liquid container 2 is made of pottery, porcelain or the like, and has a handle 6 integrally formed from the central portion to the lower portion, a liquid injection port 23, and a liquid supply port 7 formed on the upper portion.
And an opening 8 formed in the center of the bottom portion, and a round plate-shaped bottom plate 9 that is fixed to cover the opening 8 from below and constitutes the bottom surface of the container.

The bottom plate 9 is made of a thin plate made of a good heat conductive metal such as aluminum and having a substantially disk shape, and is formed in a substantially U-shaped cross section having a rib 10 on the outer circumference. Then, the rib 10 is inserted into an annular groove 11 formed in a concave shape from the outside in the peripheral portion of the opening 8 of the liquid storage container 2, and the annular groove 11 is formed with an adhesive (C) such as silicon. It is filled and sealed so that the liquid inside the liquid container 2 does not leak outside.

The body 12 is provided in a substantially cylindrical body case 13 having upper and lower openings, a bottom cover 14 that closes the lower opening of the body case 13, and an upper opening of the body case 13. A heating plate 15 on which the liquid storage container 2 is detachably mounted and heated, a sheath heater 16 embedded in the heating plate 15, and the temperature of the liquid in the liquid storage container 2 are detected, and the detected temperature is set. Heater 1 to the value
The temperature detection device 17 controls the energization of the control panel 6 and the shield plate 38 provided inside the control panel.

FIG. 3 is an enlarged view for explaining the temperature detecting device 17 and shows a state in which the liquid container is removed from the heating plate.

The temperature detecting device 17 has the following structure. That is, 19 is a heat-sensitive body having a substantially cylindrical shape made of stainless steel or aluminum, and the top surface 36 of which is a flat surface.
Reference numeral 4 is a sealing member 26 made of a ring of silicon rubber or the like fitted in an annular groove 25 formed on the side wall of the heat sensitive body 19. The heat sensitive body 19 is provided in the center of the heating plate 15 and is transparent. The top surface 36 is projected upward from the hole 20, and is vertically slidably provided on the inner side surface of the through hole 20 via the sealing member 26. The upper surface 26a of the member 26 is arranged above the upper end portion 21b of the rib.

One end of 27 is fixed to the heat sensitive body 19,
A bimetal plate having the other end opposed to the lower surface of the heating plate and provided with an insulating protrusion 28 protruding downward from the other end,
Mainly heated by heat conduction from the heat sensitive body 19,
It is configured to bend downward at a set temperature.

Reference numeral 29 denotes a contact fitting for controlling the energization of the heater 16 by opening and closing the contacts 29a and 29b by the vertical movement of the protrusion 28 caused by the bending of the bimetal plate 27.
0 is an adjusting shaft for adjusting the operating position of the contact fitting 29, 3
Reference numeral 1 is a lever fixed to the adjusting shaft 30, 32 is an end portion provided with the temperature adjusting knob 4, and the body case 13 is provided.
The operating lever for actuating the lever 31 by operating the temperature control knob 4 from the outside to change the set temperature, 33 is the whole of the temperature detecting device 17 so that the heat sensitive body is projected from the through hole of the heating plate. A coil spring 34 for constantly urging the temperature detector 34, one end of which is fixed to the heating plate with a screw, and a slide shaft 35 of the temperature detecting device is inserted into the other end of the coil spring 34 to support the temperature detecting device 17 so as to be vertically movable. It is a plate.

Next, referring to FIG. 2, the heating plate 15 is
A flange 18 is integrally formed on the outer peripheral portion of the flange 1.
8 is fixed to the upper opening peripheral edge of the main body case 13 so as to be in close contact with the elastic member 22 from below. A through hole 20 for inserting the heat sensitive body 19 is formed in the center, and an annular rib 21 which is raised upward by one step is integrally provided on the peripheral edge of the through hole 20.

The shield plate 38 is made of a metal plate and is disposed inside the control panel 3 with a predetermined distance from the inner side wall of the body case 13, and the operation lever 32 penetrates and slides. A second slit 39 in the lateral direction and a lamp 5 configured to turn on when the heater 16 is energized are provided. The control unit 3 of the main body case 13 is disposed below the second slit 39 and has a lateral first slit 40 having substantially the same shape as the second slit 39, and faces the lamp 5. And a hole 43 provided at the position.
When the lamp 5 is turned on, the user is lit up and displayed through the hole 43 that the heater 16 is in the energized state.

A water drain hole 41 is formed in the bottom cover 14 located below the gap between the main body case 13 and the shield plate 38. In addition, in the gap formed by the body case 13 and the shielding plate 38, the operation lever 3
2 is the main body case 13 from the temperature detecting device 17 side.
A bent portion 42 that descends one step toward the side is integrally provided.

Next, the operation of the drinking can configured as described above will be described. The liquid storage container 2
2 is placed on the heating plate 15 of the main body 12,
As shown in, the bottom plate 9 of the liquid container 2 contacts the top surface 36 of the heat sensitive body 19 of the temperature detecting device 17, and the coil spring 33 is compressed to move the temperature detecting device 17 downward. When the heater is energized in this state, the heating plate 1
5 is heated, the heat is transferred to the liquid in the container through the bottom plate 9, and the hot water is boiled. Then, when the hot water in the container reaches a predetermined temperature set by the operation lever, the bimetal plate 27 senses it by heat conduction from the heat sensitive body 19, and operates the contact fitting 29. The energization of the heater 16 is cut off. After that, when the temperature of the liquid in the container becomes equal to or lower than the predetermined temperature, the bimetal plate 27 returns and the heater 16 is energized again.

According to the electric heater thus constructed, the first slit 40 formed in the main body case 13 and the second slit 39 formed in the shield plate 38 are vertically aligned with each other. The first slits 40 are arranged in a different position to prevent mischief of a child or the like.
Even when a wire or the like is inserted in the wire, the position of the first and second slits 40 and 39 is different from each other in the vertical direction, so that the wire or the like cannot pass through the second slit 39 and the shield The body case 13 is formed by the plate 38.
Access to the inside is stopped. As a result, it is possible to prevent an accident in which the wire or the like inserted by mischief touches the peripheral portion of the temperature detecting device 17, which is a heavy electric portion in the main body case 13, to get an electric shock.

Further, the second slit 39 is connected to the first slit.
Is disposed above the slit 40, and the operation lever 32 has a bent portion 42 which is lowered in the gap between the body case 13 and the shielding plate 38 from the temperature detection device 17 side toward the body case 13 side. By forming the liquid, even if the user accidentally overflows a liquid such as alcohol around the operation lever 32, the liquid transmitted to the operation lever 32 drops downward at the bent portion 42, so that the liquid is operated as described above. Since the temperature does not reach the temperature detecting device 17 through the lever 32, there is no problem such as electric shock due to poor insulation. Further, the main body case 13 and the shielding plate 3
Since the bottom cover 14 located in the gap 8 is provided with the water drainage hole 41, the body case 1 is inserted through the first slit 40.
The liquid that has entered the inside 3 or the liquid that has entered through the operation lever 32 and dropped at the bent portion 42 is the drain hole 4
1 can be discharged to the outside of the main body case 13.

[0024]

According to the present invention, when a wire or the like is inserted into the main body by the mischief of a child or the like through the slit of the main body case, or the liquid overflows around the operation lever due to the carelessness of the user. However, it is possible to provide an electric heater that can prevent electric shock.

[Brief description of drawings]

FIG. 1 is a side view of a drinking can according to the present invention.

FIG. 2 is a cross-sectional view of the sake canister of FIG.

FIG. 3 is an enlarged partial sectional view of a temperature detection device.

[Explanation of symbols]

 2 Liquid Storage Container 13 Body Case 15 Heating Plate 16 Heater 17 Temperature Detection Device 32 Operation Lever 38 Shielding Plate 39 Second Slit 40 First Slit

Claims (5)

[Claims] 1. A heating plate having a heater, a main body case in which the heating plate is arranged, a liquid storage container placed on the heating plate, and a liquid storage container provided in the main body case. A temperature detecting device that operates when the temperature is detected and reaches a set temperature and stops energizing the heater; and an operating lever that changes the set temperature of the temperature detecting device,
In the electric heater, the free end portion of which is free to protrude laterally through the first lateral slit of the main body case as an operating portion and is slidably operated in the lateral direction, the slit is provided inside the main body case. And a second slit through which the operation lever penetrates and slides is formed on the shielding plate, and the second slit is arranged at a position vertically different from the first slit. And an electric heater. 2. The electric heater according to claim 1, wherein the second slit is arranged above the first slit. 3. The operation lever has a bent portion formed between the main body case and the shield plate and descending from the temperature detection device side toward the main body case side. The described electric heater. 4. A lamp for indicating an operating state of a device is fixed to the shielding plate, and a through hole is provided at a position facing the lamp of the main body case.
The described electric heater. 5. The electric heater according to claim 1, wherein a hole is formed in a bottom plate of the main body case located below a gap formed by the main body case and the shield plate.