JP2001017322A - Electric pot - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely heat treat a content liquid, to simplify an internal structure and to decrease the number of parts by directly closing a boiling thermoswitch by manipulation of a manipulation part disposed at a mouth part. SOLUTION: When heat treating a chemical included in the content liquid A, a user presses the manipulation part 28 with the finger and resets the switch part 31a of the boiling thermoswitch 31 to a break state by manual on manipulation and, therefore, a main heater 6a is energized and the content liquid A is heated and boiled. The content liquid A is kept heated and boiled to a prescribed temperature before the boiling thermoswitch 31 operates and, therefore, the chemical included in the content liquid A is heat treated. When the temperature of the steam S propagated to the boiling thermoswitch 31 attains the prescribed temperature, the boiling thermoswitch 31 is made open to de-energize the heater 6 and, therefore, the heating and boiling are interrupted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric pot capable of removing an odor or a taste generated by a medicine (for example, kalki) contained in a liquid content such as tap water.

[0002]

2. Description of the Related Art Conventionally, the above-mentioned electric pot has a function of, for example, when a content liquid stored in a pot body is heated to a predetermined temperature by a heater, a hot water thermo switch is opened and the heating by the heater is stopped. I have.

[0003]

However, the above-mentioned water heater thermoswitch has a temperature at which it is reliably opened (for example, about 95 ° C.).
(Approximately 97 ° C.), the content liquid is not boiled, and it is not possible to completely remove the drug (for example, calcium) contained in the content liquid.

Therefore, by providing a boiling thermo switch which opens when the content liquid boils in addition to the hot water thermo switch, the content liquid can be heated until the boiling thermo switch is operated. An operating means for closing the thermoswitch must be provided.

Further, in order to prevent the steam generated at the time of boiling from coming into contact with the hand, the air is exhausted to the atmosphere through a steam passage provided on the rear side of the lid, but is provided on the front side of the pot body. The operating part and the boiling thermo switch provided on the rear side must be connected by a transmission member (for example, lever, arm), which not only complicates the internal structure but also increases the number of parts. It takes time and effort to attach. In addition, the transmission member is liable to bend or deform, and it is difficult to reliably close the boiling thermoswitch.

As another method, for example, there is a method of controlling the temperature by a control means such as a microcomputer. However, since the circuit configuration is more complicated and more expensive than the above-mentioned thermoswitch,
There is a problem that the manufacturing cost increases.

In view of the above problems, the present invention operates the operation unit provided at the mouth to directly close the boiling thermoswitch, so that the content liquid can be reliably heat-treated at any time. Another object of the present invention is to provide an electric pot that has a simple structure and a simple circuit, and can reduce the manufacturing cost.

[0008]

According to the first aspect of the present invention,
An electric pot for opening a boiling thermo switch incorporated in the pot body to stop heating by a heater when the content liquid stored in the pot body boils, wherein the lid is fitted to a mouth of the pot body. A steam passage communicating between the inside and the outside of the pot main body, a hole is provided in the fitting surface of the lid, in communication with the steam passage, and a hole of the mouth opposed to the hole is formed. An electric pot provided with a boiling thermoswitch on the fitting surface so as to be exposed in the steam passage through the hole, and an operation unit for closing the boiling thermoswitch on the outer surface of the mouth. It is characterized by.

According to a second aspect of the present invention, there is provided an electric pot for stopping heating by a heater by opening a boiling thermo switch incorporated in the pot body when the content liquid stored in the pot body boils. A steam passage communicating between the inside and the outside of the pot body is formed in the lid fitted to the mouth of the pot body, and a hole is formed in the fitting surface of the lid in communication with the steam passage. A heat-sensing body inserted into the fitting surface of the mouth opposed to the hole so as to be exposed to the inside of the steam passage through the hole; And an electric pot provided with an operation section for closing the boiling thermoswitch on the outer surface of the mouth portion.

According to a third aspect of the present invention, in addition to the configuration of the second aspect, the hole and the heat sensitive body are provided on a front-side fitting surface between the mouth and the lid, and the mouth is provided. Is an electric pot having a built-in boiling thermoswitch inside a front side thereof facing an operation unit provided on a front upper surface of the mouth.

[0011]

In the electric pot according to the first aspect, the mouth and the lid are fitted to each other, and the boiling thermoswitch provided in the mouth is exposed in the steam passage through the hole formed in the lid. As a result, the heat of the steam introduced into the steam passage and the atmosphere heated by the steam is directly transmitted to the boiling thermoswitch, and the boiling thermoswitch is opened to stop heating by the heater. A liquid is obtained. By operating the operation unit (for example, pressing with a finger), the boiling thermoswitch is closed, and based on the closing, the content liquid is heated and boiled by the heater, and the medicine (for example, calcium) contained in the content liquid is heat-treated.

In the electric pot according to the second aspect, the mouth and the lid are fitted to each other to expose the heat-sensitive body protruding from the mouth to the steam passage through the hole provided in the lid. By doing so, the heat of the steam introduced into the steam passage and the atmosphere heated by the steam is conducted or propagated to the boiling thermoswitch via the heat sensitive body, the boiling thermoswitch is opened, and the heating by the heater is performed. Since the operation is stopped, a boiling liquid is obtained. By operating the operation unit (for example, pressing with a finger), the boiling thermoswitch is closed, and based on the closing, the content liquid is heated and boiled by the heater, and the medicine (for example, calcium) contained in the content liquid is heat-treated.

According to the third aspect of the present invention, in addition to the function of the second aspect, by providing a thermosensitive body and a boiling thermoswitch inside the front side of the mouth, the distance between the thermosensitive body and the boiling thermoswitch is shortened, and the atmosphere is reduced. Heat is efficiently transmitted.

[0014]

According to the present invention, the boiling thermo switch is directly closed by operating the operating portion provided at the mouth, so that the content liquid can be reliably heat-treated at any time. Since the internal structure is simplified and the number of parts is reduced, the assembling work can be performed easily and easily, and the workability is improved.

Moreover, since a thermoswitch that is less expensive than the control means as in the conventional example is used, the circuit configuration is simplified, and the manufacturing cost can be reduced. In addition, since boiling is performed at an arbitrary time, power consumption is reduced compared to automatic boiling, which is economical.

Further, by providing the boiling thermoswitch in a state where the boiling thermoswitch is exposed to the inside of the steam passage or by providing the thermosensitive member and the boiling thermoswitch in close proximity, heat loss is reduced, and the heat of the atmosphere is efficiently reduced. Propagated. In addition, since the propagation time is shortened, the heating by the heater is immediately stopped almost immediately when the boiling temperature is reached, so that over-boiling can be prevented.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below in detail with reference to the drawings. The drawings show a boiling type electric pot. In FIGS. 1, 2 and 3, the electric pot 1 houses an inner container 3 having an open upper surface inside a pot body 2, The mouth part 4 is fitted and fixed to the opening side peripheral part of the inner container 3,
The lid 5 is attached to the opening on the upper surface side of the mouth 4 so as to be openable and closable.

A main heater 6 is provided on the outer peripheral surface on the bottom side of the inner container 3.
a and a boiling heater 6b are mounted, and the heater 6 heats and boiles the content liquid A (for example, tap water) stored in the inner container 3. The boiling content liquid A is
The inner container 3 is operated by a pump operation of an air pump 19 described later.
The liquid is discharged from a spout 8 provided on the lower surface on the front side of the mouth 4 through a communication pipe 7 connected to the bottom of the opening 4.

The above-mentioned mouth 4 is pivotally connected to a pivot 9 formed on the rear side edge so that the rear end side of the lid 5 can be opened and closed up and down by a support shaft 10 and formed on the front side edge. The stopper 5 has a lid 5
The cover 5 is fixed in a state (closed state) in which the cover 5 is fitted to the opening on the upper surface side of the mouth 4 by locking the lock lever 12 pivotally attached to the front end of the cover 5.

The inner lid 13 fixed to the lower surface side of the lid 5 is formed in a size and shape substantially corresponding to the inner peripheral edge of the inner container 3, and is made of synthetic rubber fitted to the outer peripheral edge of the inner lid 13. The seal ring 14 is pressed against the inner peripheral edge of the inner container 3 in an airtight state.

A steam passage 15 formed between the opposing surfaces of the lid 5 and the inner cover 13 guides the steam S discharged into the inner container 3 toward the rear side (the pivot portion 9). 15a,
The front passage 15b is guided toward the front side (the spout 8).

An opening 15c formed substantially at the center of the steam passage 15 has holes 13a formed substantially at the center of the inner lid 13.
The spherical body 16 is opposed to and held on the lower surface side of the opening 15c, and a valve body 21 to be described later is arranged on the upper surface side.

The rear passage 15a communicates with an exhaust hole 17 formed on the rear upper surface of the lid 5, and the front passage 15b faces a mounting hole 24, which will be described later, and has a front fitting surface of the lid 5. Is formed in communication with the insertion hole 18 formed in the second hole.

The bellows type air pump 19 built in the lid 5 has a well-known configuration, and a detailed description thereof will be omitted. The operating unit 20 inserted in the center part on the upper surface side of the lid part 5 is pressed down, and the synthetic rubber valve body 21 attached to the center part on the lower end side of the pump body 19a is moved against the upper peripheral part of the opening part 15c. The liquid content A is discharged in an airtight state by pressure of air supplied by the compression operation of the pump body 19a.

On the other hand, by depressing the operation section 20, the pump main body 19a is restored to the state before compression, and an arbitrary amount of the content liquid A is poured out by repeating the compression and restoration. On the other hand, when the opening 15c is opened, the steam S in the inner container 3 is introduced into the rear passage 15a and the front passage 15b.

The substantially spherical valve body 22 held on the pouring side of the pouring port 8 closes the passage when the pot body 2 swings or tilts forward, for example. The substantially conical valve body 23 held at the back of the valve body 22 closes the passage by the pressure of the content liquid A when the pot body 2 rolls over, for example.
Leakage of the content liquid A can be reliably prevented.

The above-described mounting hole 24 is provided with the above-described insertion hole 18.
And a solid or hollow heat-sensitive body 25 inserted and fixed in the mounting hole 24 thereof.
Is formed in a shape (for example, a substantially hemispherical shape or a tapered shape) that can be easily inserted into the insertion hole 18, and is inserted substantially vertically into the insertion hole 18 when the mouth portion 4 and the lid portion 5 are fitted. At the same time, it protrudes to a length that is inserted and fixed in a state of being exposed to the inside of the front passage 15b.

A heat-resistant synthetic rubber seal ring 26 fitted between the mounting hole 24 and the heat sensitive body 25.
Is fitted in the mouth part 4 and the lid part 5 and pressed against the peripheral part on the lower surface side of the insertion hole 18 in an airtight state.

The heat sensitive body 25 is fixed to the upper surface on one end side of a substantially plate-shaped heat conductor 27 attached to the inside of the front side of the mouth portion 4. The thermoswitch 31 is fixed. And heat-sensitive body 25
The heat conductor 27 is formed of a metal having high heat conductivity (for example, aluminum, copper, or another material).

A plurality of projections, blades, holes, etc., for example, may be formed on the outer surface of the heat-sensitive body 25 on the insertion side.

An operation unit 28 formed on the front upper surface of the mouth 4
Is formed so as to be flexible with respect to the direction and angle at which the switch section 31a of the boiling thermo switch 31 is pressed, and the operation section 28 and the entire upper surface of the boiling lamp L1 and the heat retaining lamp L2 arranged in the vicinity thereof are transparent. Alternatively, it is covered with a soft resin protective sheet 29 formed translucently.

FIG. 4 shows a control circuit of the heater 6, and the heater 6 is a main heater 6 for boiling or boiling the content liquid A.
a, and a heat retention heater 6b for keeping the content liquid A warm. The heaters 6a and 6b are connected in parallel. The main heater 6a includes a boiling thermo switch 31 (manual return type) and a hot water thermo switch 32. The thermoswitches 31 and 32 are connected in parallel to the power supply line 3 via an overheat prevention thermoswitch 33 for preventing the heater 6 from overheating.
3, 35.

The heat retaining heater 6b is connected between the thermo switch 32 and the thermo switch 33, and is connected to the power supply lines 34 and 35 via the thermo switch 33.

The boiling lamp L1 and the heat retaining lamp L2 are connected in series to power supply lines 34 and 35, and the middle of the lamps L1 and L2 and the middle of the main heater 6a and the thermoswitches 31 and 32 are connected. are doing. Note that R
1 and R2 are resistors, and 36 is a fuse.

The boiling thermoswitch 31 changes the operating temperature at the time of opening to the temperature at which the content liquid A evaporates (for example, about 100
° C). On the other hand, the hot water thermo switch 32
Is mounted on the bottom side lower surface of the inner container 3 and sets the operating temperature at the time of opening to a temperature lower than the boiling temperature (about 100 ° C.) (for example, about 95 ° C.). Note that the operating temperatures of the thermoswitches 31 and 32 may be set to be equal to or lower than the above-described temperature.

The illustrated embodiment is configured as described above, and an operation method for boiling the content liquid A stored in the electric pot 1 will be described below. First, when the content liquid A is boiled from room temperature, when the power supply lines 34, 35 are connected to an external power supply, the thermo-switches 32, 33 are closed, so that the main heater 6a and the heat retaining heater 6b are energized,
The content liquid A is heated and boiled. During the heating, the hot water lamp L1 is turned on, and the heat retaining lamp L2 is kept off.

When the content liquid A rises to a predetermined temperature (for example, about 95 ° C.), the hot water thermo switch 32 is opened (for example, about 30 seconds to about 60 seconds after the temperature reaches the hot water temperature), and Since the energization of the main heater 6a is cut off, the heating is stopped. At the same time, the warming lamp L2 is turned on and the water heater lamp L1 is turned off.

Next, when heat treatment (for example, decomposition) of a chemical (for example, calcium) contained in the content liquid A is performed, as shown in FIG. The main heater 6a is energized and the content liquid A is heated and boiled because the main heater 6a is turned on by manually turning on the 31a to return to the closed state.

Until the boiling thermo switch 31 is activated,
The content liquid A is heated and boiled to a predetermined temperature (for example, about 100 ° C.).
Is heat treated to remove the peculiar smell and taste emitted by the drug.

At the time of boiling, the vapor S vaporized and vaporized is
The hole 13a of the inner lid 13 and the opening 15 of the steam passage 15
The steam S which is diverted into the passages 15a and 15b via the air passage c and is introduced into the rear passage 15a is exhausted to the atmosphere through the exhaust hole 17.

On the other hand, the steam S introduced into the front passage 15b
And the heat of the atmosphere heated by the steam S, heats the thermosensitive body 25 exposed in the passage, and through the heat conductor 25,
Since the heat is transmitted or propagated to the boiling thermo switch 31, the heat propagation time to the boiling thermo switch 31 is slower than that of the hot water thermo switch 32, and the boiling thermo switch 31 operates after a boiling maintaining time (for example, about 120 seconds).

When the temperature of the steam S transmitted to the boiling thermo switch 31 reaches a predetermined temperature (for example, about 100 ° C.), the boiling thermo switch 31 is opened and the main heater 6a is opened.
Is interrupted, so that the heating and boiling are stopped.

As described above, the operating part 28 provided on the mouth part 4 of the electric pot 1 is pressed with a finger to directly open the boiling thermo switch 31, so that the content liquid A can be opened at any time. Can be reliably heat-treated, the internal structure is simplified, and the number of parts is reduced, so that the assembling operation can be performed easily and easily, and the workability is improved.

In addition, since the thermoswitches 31, 32, and 33, which are less expensive than the control means of the conventional example, are used,
The circuit configuration is simplified, and the manufacturing cost can be reduced. In addition, since boiling is performed at an arbitrary time, power consumption is reduced compared to automatic boiling, which is economical.

Further, since the heat sensitive body 25 and the boiling thermo switch 31 are provided close to each other, the mutual distance and the heat conductor 27 are shortened and the heat loss is small. Propagated efficiently. When the temperature reaches the boiling temperature, the boiling thermo switch 31 is opened and the heating by the heater 6 is immediately stopped, so that over-boiling can be prevented.

FIG. 5 shows the boiling thermo switch 31 exposed at the front fitting surface of the mouth 4 and the exposed hole 37 formed at the front fitting surface of the lid 5 so as to face the boiling thermo switch 31.
In the front passage 15b of the lid 5 is shown, and the heat of the atmosphere introduced into the front passage 15b is directly conducted to the boiling thermoswitch 31, so that the heat loss is small. , The efficiency of conduction and propagation is improved. At about the same time as the boiling temperature is reached, the heating by the heater 6 is immediately stopped, so that substantially the same or more advantageous effects as in the above-described embodiment can be obtained.

When the content liquid A is subjected to heat treatment, the switch portion 31a of the boiling thermoswitch 31 is turned by a cam portion 28b formed on the lower surface side of the operation portion 28 through an operation lever 38 pivotally mounted inside the front side of the mouth portion 4. Is turned ON.

When the mouth 4 and the lid 5 are fitted,
The seal ring 26 fitted in the mounting hole 24 and the exposed hole 3
The airtight state is maintained by the seal ring 30 fitted to the seal 7.

As in the other embodiment shown in FIG. 6, the boiling thermoswitch 31 exposed on the front fitting peripheral surface of the mouth portion 4 and the exposed hole 37 formed on the front fitting peripheral surface of the lid portion 5.
The boiling thermo switch 31 may be exposed to the inside of the front passage 15b of the lid 5 so that substantially the same operation and effect as in the above-described embodiment can be obtained. The switch section 31a of the boiling thermo switch 31 is connected to the operation section 28.
Is directly pressed by the cam portion 28b formed in the above-mentioned section to perform an ON operation.

In correspondence between the configuration of the present invention and the above-described embodiment, the heater of the present invention corresponds to the heater 6 and the main heater 6a of the embodiment, and the heat retaining heater 6b. , The insertion hole 18 and the exposure hole 37, the present invention is not limited to the configuration of the above-described embodiment.

The heat propagation time to the boiling thermoswitch 31 is changed, for example, by changing the passage cross-sectional area of the steam passage 15 or by changing the size, thickness, length, and material of the heat-sensitive body 25 and the heat conductor 27. May be variably set to an optimal time.

Further, the thermal element 25 may be formed by pressing the end of the thermal conductor 27 facing the above-mentioned insertion hole 18 into a convex shape.

[Brief description of the drawings]

FIG. 1 is a vertical side view showing an internal structure of an electric pot.

FIG. 2 is a vertical sectional side view showing a pouring structure of a mouth and a lid.

FIG. 3 is a plan view showing an arrangement state of a boiling thermoswitch.

FIG. 4 is a circuit diagram of an electric pot.

FIG. 5 is a vertical sectional side view showing another embodiment in which the boiling thermoswitch is exposed substantially vertically to the inside of the steam passage.

FIG. 6 is a longitudinal sectional side view showing another embodiment in which the boiling thermoswitch is exposed substantially horizontally to the inside of the steam passage.

[Explanation of symbols]

 A: content liquid S ... steam 1 ... electric pot 2 ... pot body 4 ... mouth 5 ... lid 6 ... heater 15 ... steam passage 18 ... insertion hole 25 ... heat sensitive body 27 ... heat conductor 28 ... operation unit 31 ... boiling Thermo switch 37 ... Exposed hole

Claims (3)

[Claims] 1. An electric pot for opening a boiling thermo switch incorporated in a pot body to stop heating by a heater when a content liquid stored in the pot body boils.
A steam passage communicating between the inside and the outside of the pot body is formed in the lid fitted to the mouth of the pot body, and a hole is formed in the fitting surface of the lid in communication with the steam passage. A boiling thermoswitch is provided on the fitting surface of the mouth facing the hole so as to be exposed in the steam passage through the hole, and the boiling thermoswitch is closed on the outer surface of the mouth. An electric pot with an operating unit to be configured. 2. An electric pot for stopping heating by a heater by opening a boiling thermo switch incorporated in the pot body when a content liquid stored in the pot body boils.
A steam passage communicating between the inside and the outside of the pot body is formed in the lid fitted to the mouth of the pot body, and a hole is formed in the fitting surface of the lid in communication with the steam passage. Provided, on the fitting surface of the mouth facing the hole, a heat-sensitive body inserted in a state of being exposed in the steam passage via the hole is projected,
An electric pot in which the thermosensitive element is connected to a boiling thermoswitch incorporated in the mouth, and an operation unit for closing the boiling thermoswitch is provided on an outer surface of the mouth. 3. The method according to claim 1, wherein the hole and the heat sensitive body are provided on a front fitting surface between the mouth and the lid, and inside the front of the mouth.
3. The electric pot according to claim 2, further comprising a built-in boiling thermoswitch opposed to an operation unit provided on a front upper surface of the mouth.