JPH0628Y2 - Electric kettle structure - Google Patents

Description

The present invention relates to a plug structure for an electric pot, and more particularly to a plug structure for an electric pot in which a steam passage is formed inside a plug member.

[Prior Art] As a conventional plug structure of this kind of electric pot, there is a technology shown in FIG.

FIG. 6 is a sectional view showing a conventional plug structure of an electric pot disclosed in Japanese Utility Model Publication No. 56-145426.

In the figure, 61 indicates the whole plug member of the electric pot,
The stopper member 61 is composed of an upper stopper piece 62, an intermediate stopper piece 63, and a lower stopper piece 64. The upper plug piece 62 and the middle plug piece 63 are fixed to each other with an adhesive. Middle plug piece 63 and lower plug piece 6
4 are connected by screws 65, and a vapor passage 66 is formed between them.

An electric pot (not shown) is provided at the center of the lower stopper piece 64.
A steam introduction hole 67 for introducing the steam generated therein to the steam passage 66 is formed, and a steam discharge hole 68 for discharging the steam in the steam passage 66 to the outside of the electric pot is formed on a side portion of the lower plug piece 64. Has been formed. Note that 69 is a safety valve installed in the steam passage 66, and is configured to prevent leakage of hot water when the electric pot falls.

[Problems to be Solved by the Invention] By the way, a plug member 61 having a steam passage 66 formed therein is provided.
In, the steam passes through the steam passage 66,
Water stains and dust are likely to adhere to the inner surface of the plug member 61. However, according to the conventional electric kettle plug structure configured as described above, the intermediate plug piece 63 forming the steam passage 66 is formed.
Since the lower plug piece 64 and the lower plug piece 64 are connected by a screw 65 and it is difficult to disassemble and clean them, they must be used for a long time with water stains and dust adhering to them, which is not only unhygienic. Also, it was a cause of the deterioration of the steam removal function due to clogging.

SUMMARY OF THE INVENTION An object of the present invention is to provide a plug structure for an electric pot in which the plug member can be disassembled by a simple operation, and water stains and dust can be easily cleaned.

[Means for Solving the Problems] In order to solve the above problems, in the plug structure of the electric pot of the present invention, the lower part of the plug member in which the steam passage is formed is constituted by the lower plug piece, and the lower part thereof is formed. The plug piece is formed with a steam introduction hole for introducing the steam generated in the electric pot into the steam passage. The upper part of the plug member is composed of an upper plug piece, and the upper plug piece has a steam outlet hole for discharging the steam in the steam passage to the outside of the electric pot. In addition, a coupling means for disassembling the upper stopper piece and the lower stopper piece is provided, and the coupling means is an engaging portion made of either a concave portion or a convex portion formed in the upper stopper piece, Locking portions formed of the other of the concave portions and the convex portions formed on the lower plug piece so as to elastically engage with the engaging portions, and an operation for releasing the engagement between the locking portions and the engaging portions. It is composed of

[Operation] In the plug structure of the electric pot of the present invention, the upper stopper piece and the lower stopper piece are integrally connected by the concave and convex engagement of the engaging portion and the locking portion of the connecting means, and the stopper is connected in this state. A steam passage is formed inside the member. Then, the steam generated in the electric pot is introduced into the steam passage through the steam introduction hole of the lower stopper piece, and the steam in the steam passage is led out of the electric pot from the steam outlet hole of the upper stopper piece. Therefore, the plug member can reliably remove steam from the electric pot.

Further, in the coupled state, if the operating portion of the coupling means is operated to release the engagement between the engaging portion and the locking portion, the stopper member can be easily connected to the upper stopper piece and the lower stopper piece by a simple operation. Will be divided. Therefore, in this disassembled state, water stains and dust attached to the inner surfaces of the upper stopper piece and the lower stopper piece can be easily cleaned and removed.

[Embodiment] An embodiment in which the electric kettle plug structure of the present invention is embodied in an electric water heater for an automobile will be described below with reference to the drawings.

1 to 5 show an embodiment embodying the present invention. FIG. 1 is a partially cutaway front view showing the entire electric water heater for an automobile, and FIG. 2 is a plug member for an electric pot. FIG. 3 is an exploded perspective view, FIG. 3 is an exploded perspective view of a container of an electric pot and a plug member, and FIG. 4 is a first diagram showing a vapor venting mechanism of the plug member.
FIG. 5 is an enlarged cross-sectional view taken along the line AA of FIG. 5, and FIG. 5 is a schematic cross-sectional view showing a plug opening positioning structure of the plug member.

As shown in FIG. 1, a case 1 of an electric water heater for an automobile.
Is integrally formed of a synthetic resin material from a cylindrical storage part 2 having an open upper end and a rectangular tube-shaped mounting part 3 surrounding the upper part of the storage part 2 from the outside. Then, the storage unit 2 is stored in the console box 4 of the automobile, and the mounting unit 3 is placed on the console box 4, whereby the case 1 is installed in the vehicle compartment of the automobile. Storage part 2
A power supply side terminal 6 connected to an external power supply such as a battery of an automobile through a plug 5 is provided at the lower end of the.

An electric pot 8 is stored in the storage portion 2 of the case 1 in a removable manner. The electric pot 8 includes a cylindrical container 9 having an open upper surface. A pouring port 10 is formed at the upper opening edge of the container 9, and a handle 11 is integrally formed on the upper outer surface of the container 9 so as to project to the outside through a notch 12 of the case 1. Further, on the inner wall surface of the upper portion of the container 9, as shown in FIG.
A positioning piece 36 located below the square screw 35 is provided in a protruding manner. The positioning piece 36 includes the inclined guide surface 3
7 and the recess 38 are continuously formed.

As shown in FIG. 1, an electric heater 13 for heating water in the container 9 is built in the electric pot 8 at the bottom of the container 9. A heater-side terminal 14 that is attached to and detached from the power-source-side terminal 6 of the case 1 is provided at the lower end of the electric pot 8. In this embodiment, the container 9 is made of a transparent synthetic resin material.

The plug member 15 of this embodiment is screwed to the square screw 35 of the container 9. The stopper member 15 is made of synthetic resin and is shaped like a bowl.
And is divided into two parts (see FIG. 2). The space between the upper plug piece 18 and the lower plug piece 19 is a steam passage 17 that also serves as heat insulation.

As shown in FIGS. 1, 2, and 4, the bottom of the lower plug piece 19 has a steam introducing hole 20 for guiding the steam generated in the container 9 to the steam passage 17, and the steam introducing hole. 20
And an L-shaped restricting piece 21 that covers the above from above. Inside the outer peripheral portion of the lower plug piece 19, the steam introduction tube 2
2 is provided at a position higher than the steam introduction hole 20.
The bottom of the lower plug piece 19 is curved so that the water droplets in the steam passage 17 return to the container 9 via the steam introduction hole 20.

As shown in FIGS. 1 to 3, a pair of elastic pieces 47 and 48 are formed on the peripheral wall of the lower plug piece 10 so as to project downward, and locking protrusions 49 having a triangular cross section are formed on the outer surfaces thereof. Is projected. Further, the lower end of each elastic piece 47 and 48 is provided with a continuous inverted L-shaped operating portion 50 that bends outward, and the outer surface of the operating portion 50 of one elastic piece 47 is A protrusion 51 is formed which is engageable with the guide surface 37 of the positioning piece 36 and engageable with the recess 38 thereof.

On the other hand, on the outer peripheral surface of the upper plug piece 18, an outlet 23 (shown in FIG. 4) that can face the pouring port 10 of the container 9 and the container 9 are provided.
Square screw 16 that is screwed into the square screw 35 of the lower plug piece 1
9 is formed with a pair of engagement holes 54 as recesses with which the locking projections 49 of 9 are elastically engaged. Then, by engaging the locking projection 49 with the engagement hole 54, the upper plug piece 18 and the lower plug piece 19 are disassembleably coupled, and the operation portion 50 of the lower plug piece 19 is placed inside. The connection is released by pressing on.

Further, on the upper surface of the upper plug piece 18, a concavo-convex finger contact portion 24 is formed on the outer peripheral portion, and the large-diameter concave portion 2 is formed on the central portion.
5 and a small-diameter recess 26 deeper than 5 are formed concentrically. As shown in FIG. 1 and FIG. 4, the small-diameter recess 26 is formed with a plurality of steam outlet holes 27 for leading the steam in the steam passage 17 to the outside of the electric pot 8.
A vapor vent valve 28 made of a flexible material such as silicon rubber is inserted so as to cover the vapor outlet holes 27 from above. Further, a lateral groove 29 communicating with one vapor outlet hole 27 is formed on the upper surface of the small-diameter recess 26 so as to extend beyond the outer periphery of the vapor vent valve 28.

At the upper end of the case 1, a lid member 31 formed of a synthetic resin material in the shape of a square arm is pivotally supported by a hinge portion (not shown) at one side edge thereof so as to be openable and closable. A retaining member 42 made of a flexible elastic material such as silicon rubber is attached to the retaining cylinder 33 protruding from the inner surface of the central portion of the lid member 31. The holding member 42 is provided with an annular inner pressing portion 43 that presses and holds the upper surface of the plug member 15 around the vapor vent valve 28 and a U-shaped outer pressing portion 44 when the lid member 31 is closed. ing. The inner pressing portion 43 is the stopper member 15.
The upper surface of the large-diameter concave portion 25 of the
Presses the upper surface of the plug member 15 outside the large-diameter recess 25.
The inner pressing portion 43 is formed with a pair of steam guide portions 45 that allow the steam discharged from the steam release valve 28 of the plug member 15 to escape to the outside of the inner pressing portion 43.

Next, the function of the plug member 15 in the electric water heater for a vehicle configured as described above will be described.

Now, when the lid member 31 of the electric water heater for a vehicle is closed, the upper surface of the plug member 15 is held by the inner holding portion 43 of the holding member 42.
And, the electric pot 8 is firmly held in the case 1 by being pressed by the outer holding portion 44. When the electric heater 13 is energized in this state, the heat in the electric heater 13 heats the water in the container 9.

The steam generated in the container 9 due to the boiling of water passes through the steam introduction hole 20 and the steam introduction cylinder 22 provided in the lower plug piece 19 of the plug member 15 and the steam passage 17 as shown by an arrow in FIG. Will be introduced in. The steam that has entered through the steam introduction hole 20 hits the restriction piece 21 and is diffused. Further, when the steam introducing hole 20 is closed by the surface of hot water, only the steam introducing cylinder 22 performs the steam removal.

Then, when the vapor pressure in the vapor passage 17 exceeds a predetermined value, the vapor vent valve 28 is operated by the vapor pressure,
The plurality of vapor lead-out holes 27 of the upper plug piece 18 are opened. Therefore, the steam in the steam passage 17 is discharged into the inner pressing portion 43 of the holding member 42 through the respective steam outlet holes 27, and further from there, via the steam guide portion 45, the lid member 3.
1 is guided to the inner space. If the steam pressure in the steam passage 17 is equal to or lower than a predetermined value, the steam is discharged into one steam outlet 2
It is discharged to the outside of the electric pot 8 through 7 and the lateral groove 29 communicating with it.

When pouring hot water from the electric pot 8, the handle 11 is held, the electric pot 8 is taken out from the case 1, and the plug member 15
As shown in FIG. 5, the outlet 23 is the pouring port 1 of the container 9.
Rotate toward a position facing 0. Then, the protrusion 51 of the one elastic piece 47 of the lower stopper piece 19 engages with the guide surface 37 of the positioning piece 36 of the container 9, and a predetermined drag force acts on the stopper member 15. When the plug member 15 is further rotated in this state, the protrusion 51 engages with the recess 38 by the elastic force of the elastic piece 47, and a strong stopping force acts on the plug member 15. At this time, since the outlet 23 of the plug member 15 and the pouring port 10 of the container 9 face each other, if the electric pot 8 is tilted in this state,
It is possible to pour from a pouring port 10 of the container 9 into a cup or the like.

On the other hand, when cleaning the inside of the plug member 15, the upper plug piece 1
8 and the lower plug piece 19 are disassembled, the elastic pieces 47 and 48 are deformed inward by pressing the operating portion 50 of the lower plug piece 19 in the connected state shown in FIG. 1 or 3. Then, the locking projection 49 of the lower plug piece 19 is disengaged from the engaging hole 54 of the upper plug piece 18. Therefore, in this state, as shown in FIG. 2, the lower plug piece 19 can be pulled out from the upper plug piece 18, and the water stains or dust adhering to the inner surface of each component can be washed and cleaned. Also,
At the time of assembly after cleaning, if the lower plug piece 19 is pushed into the upper plug piece 18, the resilient projections 49 of the elastic pieces 47 and 48 engage the locking projections 49 with the engagement holes 54, and the upper plug piece 18 is pushed. And the lower plug piece 19 are firmly coupled.

As described above, in the plug structure of the electric pot of the present embodiment, the lower part of the plug member 15 in which the vapor passage 17 is formed is formed by the lower plug piece 19, and the lower plug piece 19 has the electric pot 8 therein. Steam generated in the steam passage 1
A steam introducing hole 20 and a steam introducing cylinder 22 to be introduced into 7 are formed. The upper part of the plug member 15 is constituted by an upper plug piece 18, and the steam passage 17 is provided in the upper plug piece 18.
Steam outlet hole 27 for discharging the steam of the outside of the electric pot 8
And a steam valve 28 is provided. Further, a coupling means for disassembling the upper stopper piece 18 and the lower stopper piece 19 is provided, and in this embodiment, the connecting means is
Engagement hole 54 as a recess formed in the upper plug piece 18
And the engaging projections 4 formed on the elastic pieces 47 and 48 of the lower plug piece 19 so as to elastically engage with the engaging holes 54.
9 and an operating portion 50 provided on the elastic pieces 47 and 48 so as to release the engagement between the engaging projection 49 and the engaging hole 54.

Therefore, according to the plug structure of the electric pot of the above-described embodiment, the upper plug piece 18 and the lower plug piece 19 are firmly and integrally coupled by the concave-convex engagement of the engaging hole 54 and the locking convex portion 49. In the combined state, the vapor passage 17 is formed inside the plug member 15. Then, the steam generated in the electric pot 8 is introduced into the steam passage 17 through the steam introduction hole 20 and the steam introduction cylinder 22 of the lower plug piece 19, and the steam in the steam passage 17 is the steam discharge hole of the upper plug piece 18. It is led out of the electric pot 8 from 27 and the steam vent valve 28.
Therefore, the plug member 15 can reliably remove the steam from the electric pot 8.

Further, in the coupled state, if the operating portion 50 of the lower plug piece 19 is operated to release the engagement between the engaging hole 54 and the locking projection 49, the plug member 15 can be easily operated by the upper plug piece. 18 and a lower stopper piece 19. Therefore, in this disassembled state, water stains and dust attached to the inner surfaces of the upper stopper piece 18 and the lower stopper piece 19 can be easily cleaned and removed.

In the above embodiment, the engagement hole 54 is formed in the upper plug piece 18.
However, the locking projection 49 is provided on the lower plug piece 19 in a protruding manner. Even when the present invention is carried out by reversing the concavo-convex relationship, the same effect as that of the above embodiment can be obtained. Further, although the present invention has been embodied in the plug structure of the electric kettle in the electric water heater for an automobile in the above-mentioned embodiment, the present invention is not limited to this, and is applied to the plug structure of the tabletop electric kettle. It is also possible to materialize.

[Effects of the Invention] As described above, the plug structure of the electric pot of the present invention has a lower plug piece having a steam introduction hole, an upper plug piece having a steam discharge hole, and an upper plug piece and a lower plug piece. A coupling means for movably coupling is provided, and the coupling means is configured to elastically engage with the engaging portion formed of either the concave portion or the convex portion formed in the upper plug piece, and the engaging portion. A simple operation because it is composed of a locking portion formed of the other one of the concave portion and the convex portion formed on the lower plug piece and an operation portion for releasing the engagement of the locking portion and the engaging portion. Divide the stopper member into an upper stopper piece and a lower stopper piece,
In the disassembled state, there is an excellent effect that water stains and dust attached to the inner surfaces of the upper stopper piece and the lower stopper piece can be easily cleaned and removed.

[Brief description of drawings]

FIG. 1 is a partially cutaway front view showing an entire electric water heater for an automobile according to an embodiment of the present invention, and FIG. 2 is a plug member for an electric pot used in the embodiment of FIG. FIG. 3 is an exploded perspective view, FIG. 3 is an exploded perspective view of the container and plug member of the electric pot used in the embodiment of FIG. 1, and FIG. 4 is used in the embodiment of FIG. FIG. 6 is an enlarged cross-sectional view taken along the line AA of FIG. 1 showing the vapor removing mechanism of the plug member, and FIG. FIG. 1 is a sectional view showing a conventional plug structure of an electric pot. In the figure, 8: electric pot, 9: container, 15: stopper member, 17: steam passage, 18: upper stopper piece, 19: lower stopper piece, 20: steam inlet hole, 22: steam inlet tube, 27: steam outlet Hole: 28: steam vent valve, 49: locking projection, 50: operating part, 54: engaging hole. In the drawings, the same reference numerals and symbols indicate the same or corresponding parts.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Koji Miura, 1-1, Showa-cho, Kariya city, Aichi Nihon Denso Co., Ltd. (72) Inventor, Masahiro Yoshida 1-20-5 Tenma, Kita-ku, Osaka-shi, Osaka Zouin Mahobin Co., Ltd.

Claims (1)

[Scope of utility model registration request] 1. A lower plug piece having a steam introducing hole for introducing the steam generated in an electric pot into the steam passage, and a lower plug piece having a vapor passage inside thereof, the upper part of the plug member. The upper plug piece having a steam lead-out hole for leading the steam in the steam passage to the outside of the electric pot, and the engaging portion formed of one of the concave portion and the convex portion formed in the upper plug piece, and the engaging portion. A locking portion formed of the other one of the concave portion and the convex portion formed on the lower plug piece so as to elastically engage with, and an operating portion for releasing the engagement between the locking portion and the engaging portion. And a coupling means for disassembling the upper stopper piece and the lower stopper piece by the engagement of the engaging portion and the locking portion.