JP5522830B2 - Electric kettle - Google Patents

Description

The present invention comprises a heating means for heating the hot water reservoir and reservoir for reserving hot water to be heated, as well, with a power supplied from the outside to the bottom surface of the power feed to be supplied to the heating unit Yes A power source plate having a bottom cylindrical main body, a power supply mechanism that outputs power supplied from a power source through a power cord to the outside , and a mounting portion on which the circular bottom of the main body can be freely mounted ; The power receiving mechanism and the power supply mechanism are connected in a conductive state in a power supply posture in which the main body is mounted on the mounting portion of the power supply plate , and power is supplied from the power supply mechanism to the power reception mechanism. The present invention relates to an electric kettle as a configured heating container.

In such an electric kettle , when the main body is placed on the power supply plate, the power receiving mechanism provided on the bottom surface of the main body and the power supply mechanism provided on the top surface of the power supply plate are connected in a conductive state so that power is supplied to the heating means. It is composed of .
And it is comprised so that comparatively big electric power (for example, about 1100 W) may be supplied to a heating means so that the hot water stored in the storage part can be boiled as quickly as possible.

In such an electric kettle , conventionally, the power cord is directly connected to the power plate (see, for example, Patent Document 1).

JP 2009-125357 A

However, in the conventional electric kettle , since the power cord is directly connected to the power plate as described above, when the power cord is pulled, the power cord is pulled by the power cord and moved to the power plate. There was a possibility that the placed main body was shaken, and in the worst case, the body fell down, and there was room for improvement in improving safety.

This invention is made | formed in view of this situation, The objective is to provide the electric kettle which can improve safety | security.

In order to achieve the above object, an electric kettle according to the present invention comprises a storage unit for storing hot water to be heated and a heating unit for heating the hot water in the storage unit, and the electric power supplied from outside is supplied to the heating unit. A bottomed cylindrical main body having a power receiving mechanism to be supplied to the bottom, a power supply mechanism for outputting the power supplied from the power source through the power cord to the outside , and the circular bottom of the main body are mounted A power supply plate provided with a free mounting portion, wherein the power receiving mechanism and the power supply mechanism are connected in a conductive state in a power supply posture in which the main body is mounted on the power supply plate mounting portion , and the power supply An electric kettle configured to be fed from a mechanism to the power receiving mechanism,
The configuration is characterized in that the power cord and the power plate are a rectangular plug provided on the power cord, and provided on the power plate so that the magnet plug is detachably held by an attractive force of a magnet. Connected by a plug receiver having a plug receiving case having a frame portion of
A box-shaped plug receiving box for storing the plug receiving case of the plug receiving ;
The plug receiving box includes an inner wall surface, an upper wall surface, a lower wall surface, a left wall surface, and a right wall surface facing the radially inner side of the power plate to form an internal space, and the radial direction of the power plate With an opening facing outward,
The power supply plate includes a lower member that forms a bottom surface of the mounting portion and an upper member that forms an upper surface of the mounting portion, and the lower member and the upper member sandwich the plug receiving case. Assembled in a state, the plug receiving case is configured to be accommodated in the internal space of the plug receiving box,
In a state assembled with said upper member and said lower member, said plug receptacle box projects upwardly from the upper surface of the mounting table of the power supply plate, and, the mounting section of the substantially entirely the power plate In a state of protruding to the side of the main body placed in the power feeding posture, the power supply plate is continuously formed in a part of the circumferential direction of the placement portion ,
A plurality of anti-slip members are provided in a distributed manner on the bottom surface of the mounting portion in the power supply plate, and the anti-slip member is located at a position corresponding to a portion where the plug receiving box is present on the bottom surface of the mounting portion. The total bottom area combined with the bottom area is arranged in a state in which the bottom area of the anti-slip member at the position corresponding to the portion where the plug receiving box does not exist on the bottom surface is equal to or larger than the total bottom area combined. is there.

According to the above characteristic configuration, the power cord and the power plate are connected by the magnet plug provided on the power cord and the plug receptacle provided on the power plate. Therefore, even if the power cord is pulled, the magnet plug Is removed from the plug receptacle, so that the movement of the power supply plate can be suppressed, and the main body placed on the power supply plate can be prevented from shaking or falling.
In addition, the plug receiving box for storing the plug receiver protrudes upward from the upper surface of the power supply plate, and at least the upper portion is located on the side of the main body placed on the power supply plate in a power feeding posture. Since the structure is continuous with a part of the direction, it is possible to employ a member whose thickness is considerably thinner than that of the plug receptacle in the portion other than the plug receptacle box in the power supply plate, that is, the portion where the main body is placed. it can. That is, in order to supply a relatively large electric power to the heating means, even if the plug receptacle becomes large as the magnet plug becomes large, the portion other than the plug receptacle box in the power supply plate can be made thin. Thus, the height of the entire heating container with the main body placed on the power supply plate can be prevented from becoming high and unstable. Thereby, when the power cord is unexpectedly pulled and the magnet plug is removed from the plug receptacle, the main body placed on the power plate can be further prevented from shaking or falling. Further, it is possible to prevent an unnecessary space from being formed in the power supply plate.
Accordingly, it is possible to provide a heating container that can improve safety.

Furthermore, the force that prevents the power supply plate placed on the table or the like from slipping is such that the force due to the non-slip member located at the position corresponding to the portion where the plug receiving box exists is applied to the portion where the plug receiving box does not exist. Greater than the force due to the anti-slip member in the corresponding position. Incidentally, the force that prevents the power supply plate from sliding on the table or the like by the anti-slip member is obtained by the static frictional force, adsorption force, adhesive force, etc. of the anti-slip member.
In other words, when the power plate is placed on a table or the like, the portion of the bottom surface of the power plate where the plug receiving box holding the magnetic plug is present is more on the table than the portion where the plug receiving box is not present. Even if the power cord is pulled while the power cord and the power plate are connected, the portion of the circumferential direction of the power plate where the plug receiving box that holds the magnet plug moves will move. Can be suppressed. In addition, even if the power cord is pulled, the portion where the plug receiving box that holds the magnetic plug in the circumferential direction of the power plate is difficult to slide on the table etc. Safety can be improved.
Therefore, the safety can be further improved.

A further characteristic configuration of the electric kettle according to the present invention is that the plurality of anti-slip members are arranged in the vicinity of the outer periphery of the main body placed in the power feeding posture on the placement portion of the power supply plate in plan view. It exists in the point provided in the bottom face of the said mounting part in the said power supply plate so that it may be located in the position which overlaps with a main body.

According to the above characteristic configuration, the weight of the main body can be distributed and applied to the plurality of anti-slip members as evenly as possible. Therefore, even if the power cord is pulled, It is possible to reliably suppress the movement of the portion where the plug receiving box holding the magnet plug is present. In addition, since the plurality of anti-slip members can support the outer peripheral portion of the power supply plate as much as possible, it is possible to prevent the power supply plate placed on the table or the like from rattling as much as possible. As a result, the main body can be stably placed and supported by the power supply plate.
Therefore, the safety can be further improved.

According to a further characteristic configuration of the electric kettle according to the present invention, the power receiving mechanism is provided in a central portion of the bottom surface of the main body, and the power feeding mechanism is provided in a central portion of the upper surface of the mounting portion in the power supply plate . ,
A protruding portion that protrudes radially outward at a part of the circumferential direction at the bottom of the main body is centered on the power receiving mechanism in a state where the main body is placed on the mounting portion of the power supply plate in the power feeding posture. When rotated, provided in a positional relationship to hit the plug receiving box,
The main body is placed on the mounting portion of the power supply plate in an inclined posture straddling the upper surface of the power supply plate and the upper portion of the plug receiving box, with the protruding portion at the bottom riding on the plug receiving box. In this state, the contact point of the power receiving mechanism and the contact point of the power feeding mechanism are in a non-conductive state.

According to the above characteristic configuration, the user places the main body on the power supply plate in an inclined posture straddling the upper surface of the power supply plate and the upper portion of the plug receiving box with the protruding portion at the bottom thereof riding on the plug receiving box. Even when the power receiving mechanism is placed, the contact of the power receiving mechanism and the contact of the power feeding mechanism are non-conductive. Therefore, it is possible to prevent the hot water from being heated by being supplied with power to the heating means in a state where the main body is placed on the power supply plate in an unstable inclination posture in which there is a possibility of falling.
Moreover, since an unstable conductive state of the contact can be prevented, heat generation at the contact portion due to an increase in contact resistance can be suppressed.

By the way, the above-mentioned protrusion part is provided for the purpose described below, for example.
That is, usually, an operation tool or the like for operating the switch means for intermittently energizing the heating means is provided on the side peripheral surface of the main body. Therefore, by providing the main body with the protruding portion and providing the operating tool or the like above the protruding portion as described above, at least the lower side of the operating tool or the like is covered by the protruding portion.
Therefore, even if the main body is placed on the power supply plate in an inclined posture, the hot water stored in the storage section of the main body is not heated, and the contact portion caused by the unstable conduction state of the contact Therefore, the safety can be further improved.

A further characteristic configuration of the electric kettle according to the present invention is that the inner wall surface facing the inner side of the power supply plate in the plug receiving box is located on the lower side toward the inner side of the power supply plate. And at least the lower side portions of both lateral portions of the inner wall surface of the inwardly sloping inclined surface have a larger inclination with respect to the horizontal surface than the portion on the center side in the circumferential direction of the inner wall surface. It is composed of a steep inwardly inclined surface that becomes larger,
Of the lower edge of the inner wall surface that is in contact with the upper surface of the power supply plate, the lower edge corresponding to the steeply inwardly descending inclined surface portion is positioned radially outward of the power supply plate toward the side edge. In the point.

  According to the above characteristic configuration, since the inner wall surface of the plug receiving box is configured as an inwardly inclined surface, when the main body is placed on the power supply plate, the bottom of the main body has an inwardly inclined surface shape of the plug receiving box. Even when it hits the inner wall surface, the main body is guided toward the center side of the power supply plate by the inner wall surface of the inclined surface that is inwardly inclined.

In addition, before lifting the main body from the power supply plate, the main body mounted on the power supply plate is rotated around the power receiving mechanism so that the handle provided on the main body is positioned in front, or When the main body is placed on the power supply plate, the main body placed on the power supply plate can be rotated around the power receiving mechanism so that the handle is located at an unobstructed position.
When the main body placed on the power supply plate is rotated around the power receiving mechanism, even if the protrusion at the bottom of the main body hits the lower part of the plug receiving box, the protrusion at the bottom of the main body is the inner wall surface of the plug receiving box. It is possible to prevent the main body from being placed on the power supply plate in a halfway posture riding on the lower end portion.
In other words, even when the main body placed on the power supply plate is rotated around the power receiving mechanism, there is a sharply inclining inclined surface portion, so one of two postures, a power feeding posture and an inclined posture (not fed), can be selected. As a result, the main body does not take a halfway posture.
Therefore, it is possible to prevent the inconvenience that the contact of the power feeding mechanism and the contact of the power receiving mechanism are brought into proximity and sparking.

Perspective view showing appearance of electric kettle Perspective view of electric kettle with kettle body lifted from power plate Vertical side view of the kettle body Vertical section of the bottom of the electric kettle with the kettle body lifted from the power plate Vertical section of the lower part of the electric kettle with the kettle body mounted on the power plate Top view of power plate Bottom view of power plate Exploded perspective view of power plate Diagram explaining the power supply plate plug receiving box The figure which shows the state by which the kettle main body was mounted in the power supply plate in the inclination attitude | position across the upper surface of the mounting part of a power supply plate, and the upper part of a plug receiving box. Bottom view of power supply plate according to another embodiment Bottom view of power supply plate according to another embodiment

Hereinafter, an embodiment in the case where the present invention is applied to an electric kettle as an example of a heating container will be described based on the drawings.
As shown in FIGS. 1 and 2, the electric kettle includes a power supply plate P and a kettle main body (corresponding to the main body) K that can be placed on the power supply plate P.
As shown in FIGS. 3 to 5, the kettle body K is provided with a storage unit 1 for storing hot water to be heated, an electric heater 2 as a heating means for heating the hot water of the storage unit 1, and an external The power receiving mechanism 3 for supplying the electric power supplied from the electric heater 2 to the electric heater 2 is provided in a state of being located at the center of the bottom surface.
As shown in FIGS. 2, 4, and 5, the power supply plate P has a power supply mechanism 5 that outputs power supplied from a power source (commercial power outlet or the like) through the power cord 4 to the center on the upper surface. It is provided in a position.
And in the electric power feeding attitude | position which mounted the kettle main body K on the power supply plate P, the electric power receiving mechanism 3 and the electric power feeding mechanism 5 are connected to a conduction | electrical_connection state, and it is comprised so that electric power may be supplied to the electric power receiving mechanism 3 from the electric power feeding mechanism 5. .

  As shown in FIGS. 1, 2, and 5, in the present invention, the power cord 4 and the power plate P are provided on the magnet plug 6 provided on the power cord 4 and the power plate P, and the magnet 22 ( A plug receiving box 8 for storing the plug receiver 7 is connected to a plug receiver 7 that detachably holds the magnet plug 6 by an attractive force (provided on the magnet plug 6 as will be described later). It protrudes upward from the upper surface, and is connected to a part in the circumferential direction of the power supply plate P in a state where at least the upper part is located on the side of the kettle body K placed on the power supply plate P in a power feeding posture.

Next, description will be made regarding each part of the electric kettle.
As shown in FIGS. 1 to 3, the kettle main body K includes a main body 9 that is provided with the storage portion 1 and is configured in a substantially bottomed cylindrical shape with an open top, and a cover that covers the opened opening. The body 10 is provided as a main member. The lower part of the main body 9 is configured to have a narrowed shape with a smaller diameter at the bottom.
The lid 10 is configured to be swingable around a horizontal swing shaft 10a (see FIG. 3) provided on the outer peripheral portion of the opening of the main body 9, and the lid 10 is swung upward. Water can be poured into the main body 9 with the lid open. On the other hand, hot water can be heated while the lid 10 closes the opening of the main body 9. Here, the hot water in the storage unit 1 is a general term for water poured into the storage unit 1 and hot water in which the injected water is heated by the electric heater 2.

The lid 10 of the kettle body K has a spout 11 for pouring hot water stored in the reservoir 1, a lid opening / closing operation unit 12 for opening and closing the lid 10, and a steam port 13 for discharging steam. Is provided.
Further, a bar-like handle 14 is provided at a position corresponding to the opposite side of the kettle main body in the front-rear direction with respect to the spout 11 in the upper portion of the main body 9 of the kettle main body K so as to extend in the vertical direction.
A band-shaped bulging portion 9 a extending from the upper end to the lower end is formed in the side portion of the main body body 9 in order to form a space for storing a steam passage 15 to be described later, and a part of the bottom portion of the main body body 9 in the circumferential direction. Is provided with a protruding portion 9b that protrudes radially outward and closes the bottom of the bulging portion 9a on the side of the body body 9.
The handle 14 is provided in a cantilever state with its upper end supported by the upper end of the bulging portion 9a.

As shown in FIG. 3, a hot water supply operation valve 16 for opening and closing the spout 11 is provided on the inner side of the spout 11, and the valve 16 is opened and closed at the upper end of the handle 14. A hot water supply operation button 17 is provided.
The valve 16 is provided so as to be movable up and down while being urged to return upward, and is configured to close the spout 11 in a state where no downward force is applied.
The hot water supply operation button 17 is configured so as to be able to be pushed in, and as shown in FIG. 3, when the hot water supply operation button 17 is not pushed in, the valve 16 is in a state where no force is exerted to push the valve 16 downward. Although 16 is closed and illustration is abbreviate | omitted, if the hot water supply operation button 17 is operated to a pushing attitude | position, the valve 16 will be pushed down below and the valve 16 will be opened.
That is, as long as the hot water supply operation button 17 is not in the pushed-in posture, even if the kettle body K is tilted, hot water does not come out from the spout 11, and when the hot-water supply operation button 17 is pushed in, the hot water can be discharged from the spout 11. .

As shown in FIGS. 3 to 5, the electric heater 2 is provided in an annular shape on the bottom surface of the storage portion 1.
The power receiving mechanism 3 will be described. As shown in FIGS. 3 to 5, the power receiving mechanism 3 is retracted from the bottom surface to the center side of the bottom of the kettle main body K. It is provided in a recess 18d for fitting a circular power feeding mechanism that can be fitted.
The power receiving mechanism 3 includes a pin-shaped center electrode 3a (corresponding to a contact), an annular electrode 3b (corresponding to a contact) provided concentrically with the center electrode 3a on the outer periphery of the center electrode 3a, And an annular ground electrode 3c provided on the outer periphery of the annular electrode 3b. Incidentally, the center electrode 3a and the annular electrode 3b are connected to the center electrode 5a and the outer electrode 5b (corresponding to the contacts) for feeding provided in the center hole 5A and the annular hole 5B of the feeding mechanism 5 described later, The power receiving electrode receives power supplied from these electrodes, and the grounding electrode 3c is connected to a grounding electrode 5c of the power feeding mechanism 5 described later. The grounding electrode 3c of the power receiving mechanism 3 and the grounding electrode 5c of the power feeding mechanism 5 may be omitted.

An operation tool 19 for operating the interlocking unit 18 as a switch means for interrupting energization to the electric heater 2 is provided above the protruding portion 9 b at the bottom of the main body 9.
The interlocking unit 18 is widely used in an electric kettle, and connects the power receiving mechanism 3 and the operation tool 19.
The interlocking unit 18 will be briefly described without detailed description. A unit main body 18a having the power supply mechanism fitting recess 18d formed on the bottom side, and a fixed arm 18b extending laterally from the unit main body 18a. And a swing arm portion 18c provided on the upper side of the fixed arm portion 18b and swingable in the vertical direction with respect to the unit body 18a, and at the free end of the swing arm portion 18c, The operation tool 19 is connected so as to be swingable integrally with the swing arm portion 18c.
The power receiving mechanism 3 is provided in the power supply mechanism fitting recess 18 d in a form in which the outer annular electrode 3 c is fitted in the power supply mechanism fitting recess 18 d of the interlocking unit 18.

At the outer peripheral side end of the fixed arm portion 18b, a steam detector 20 (specifically a steam sensitive plate such as a bimetal) that detects steam guided from the upper part of the kettle body K through the steam path 15 is deformed in response to steam. Yes).
As shown by the solid line in FIG. 5, even when the kettle body K is placed on the power supply plate P in a power feeding posture, the interlocking unit 18 is configured in a state where the operation tool 19 is kept in the upper standby posture. Switch means to be turned off.
Then, in a state where the kettle body K is placed on the power supply plate P in a power feeding posture, the operation tool 19 is pushed down and the swing arm portion 18c is swung downward as shown by a one-dot chain line in FIG. When the hot water in the storage unit 1 is not boiling, the steam is not guided to the steam detector 20 and the steam detector 20 is not deformed, so that the swing arm 18c is maintained in the heating maintenance posture. The switch means constituted by the interlocking unit 18 is held in the ON state, and the electric power is supplied to the electric heater 2. Therefore, heating of water is started.
When the water in the kettle body K boils by heating, the steam generated from the hot water reaches the steam detector 20 through the steam path 15 provided on the side of the kettle body K, and the steam detector 20 detects the steam. Accordingly, the posture holding of the swinging arm portion 18c held in the downward swinging state is released, and the swinging unit 18c is returned to the upward swinging, and the switch means constituted by the interlocking unit 18 is turned off. Thus, the power supply to the electric heater 2 is stopped. At the same time, the operation tool 19 returns from the heating maintenance posture to the standby posture.

As shown in FIG. 1, the magnet plug 6 is configured using a plug case 21. That is, the plug case 21 is provided with a pair of magnets 22 protruding from the center of the front surface of the plug case 21, and a pair of contact recesses 23 are provided in a state of being distributed to both sides of the pair of magnets 22. Although not shown, a contact is provided at the bottom of each contact recess 23.
As shown in FIGS. 1 and 8, the plug receiver 7 is configured using a plug receiver case 24 having a rectangular frame portion 25. In other words, the iron piece 26 is provided in the frame portion 25 of the plug receiving case 24 with the iron piece 26 positioned in the center of the frame portion 25, and the pair of columnar electrodes 27 are distributed to both sides of the iron piece 26. It is provided so as to protrude from the iron piece 26. Incidentally, the plug receiving case 24 is formed of a resin having excellent heat resistance and flame retardancy, such as a phenol resin.
As shown in FIGS. 1 and 2, when the tip of the magnet plug 6 is inserted into the frame portion 25 of the plug receiver 7, the pair of magnets 22 are paired with the pair of contact recesses 23 by the attracting action of the pair of magnets 22 against the iron piece 26. The plug receiver 7 and the magnet plug 6 are connected in a conductive state.

  The power supply plate P will be further described. As shown in FIGS. 2, 5, and 6, the power supply plate P includes a circular plate-shaped mounting portion 28 having a larger diameter than the circular bottom portion of the kettle main body K and its mounting portion. The plug receiving box 8 is connected to a part of the mounting portion 28 in the circumferential direction. That is, the plug receiving box 8 has a structure in which substantially the entire plug receiving box 8 is located on the side of the mounting portion 28 on which the kettle main body K is mounted.

The power supply mechanism 5 is configured to have a substantially cylindrical outer shape, and is provided at the center of the mounting portion 28 so as to protrude from the upper surface thereof.
The power supply mechanism 5 will be described. As shown in FIGS. 4 to 6, the power supply mechanism 5 includes a center hole 5A and an annular hole 5B provided concentrically with the center hole 5A. A central electrode 5a and an outer electrode 5b (corresponding to contact points) provided on 5B, respectively, and a ground electrode 5c provided on a part of the cylindrical outer peripheral portion of the power feeding mechanism 5 in the circumferential direction are configured.
4 and 5, when the kettle body K is placed on the power supply plate P in a power feeding posture, the power feeding mechanism 5 is fitted into the power feeding mechanism fitting recess 18d at the bottom of the kettle body K. The electrodes of the power feeding mechanism 5 and the power receiving mechanism 3 are electrically connected to enable power feeding.

  As shown in FIG. 1, FIG. 5 to FIG. 7 and FIG. 9, the plug receiving box 8 includes an inner wall surface 8f, upper and lower wall surfaces 8t and 8b, and left and right wall surfaces 8h facing the radially inner side of the power supply plate P. It is covered with five wall surfaces of 8 m, and is configured in a box shape with an opening that faces the radially outward side of the power supply plate P.

  As shown in FIGS. 5 and 8, the power supply plate P includes a lower member 31 that forms the bottom surface of the mounting portion 28 and the lower wall surface 8b of the plug receiving box 8, the upper surface of the mounting portion 28, and the plug receiving box. 8 is constructed by assembling the inner wall surface 8f, the upper wall surface 8t and the upper and lower members 32 forming the left and right wall surfaces 8h and 8m with the plug receiver 7 sandwiched therebetween. The lower member 31 and the upper member 32 are made of a resin having lower heat resistance and flame resistance than the resin forming the plug receiving case 24, for example, PP (polypropylene) resin.

  A pair of square tube-shaped engaging portions 32c protrude from the back surface of the portion of the upper member 32 that forms the upper wall surface 8t of the plug receiving box 8, and the pair of engaging portions 32c are formed above the plug receiving case 24. A pair of rectangular frame-like fitting portions 24c into which the portions 32c are fitted and locked are provided. Then, the lower member 31 and the upper member 32 are assembled in a state where the plug receiver 7 is sandwiched with the pair of engaging portions 32c of the upper member 32 fitted in the pair of fitting portions 24c of the plug receiving case 24. As a result, the plug receiver 7 is housed in the plug receiver box 8 in a state in which the plug receiver 7 is securely retained.

Further, as shown in FIGS. 1 and 5, when the lower member 31 and the upper member 32 are assembled with the plug receiver 7 sandwiched as described above, the frame portion 25 of the plug receiving case 24 becomes the plug receiving box 8. It is comprised so that it may be in the state which protrudes from the opening part.
That is, the plug receiving box 8 is formed of PP resin having lower heat resistance and flame retardance than the phenol resin forming the plug receiving case 24, but the frame portion 25 of the plug receiving case 24 is formed on the plug receiving box 8. By projecting from the opening, even if a spark occurs when the magnet plug 6 is attached to the plug receiver 7 or removed from the plug receiver 7, the influence of the spark is prevented from reaching the plug receiver box 8, Deterioration of the opening of the plug receiving box 8 is prevented.

Although not shown, the cable connecting the plug receiver 7 housed in the plug receiving box 8 and the power feeding mechanism 5 is placed in the space formed between the lower member 31 and the upper member 32. Wiring is performed inside a portion corresponding to the portion 28.
In other words, the mounting portion 28 of the power supply plate P is configured such that substantially the entire plug receiving box 8 (at least the upper part) is located on the side of the kettle body K mounted on the mounting portion 28 of the power supply plate P. It is sufficient to house a member that is considerably thinner than the plug receiver 7 such as the cable. Thereby, the mounting portion 28 can be thinned, and the height of the entire electric kettle with the kettle main body K mounted on the power supply plate P can be avoided.

  As shown in FIG. 1, FIG. 2 and FIG. 6, a message (for example, “Washing prohibited” etc.) for warning the user not to wash the power supply plate is displayed on the upper wall surface 8t of the plug receiving box 8. The label 29 is attached.

As shown in FIGS. 5, 6, and 9, the inner wall surface 8 f of the plug receiving box 8 is configured as an inner downward inclined surface that is positioned on the lower side toward the inner side of the power supply plate P, and the inner side thereof. At least the lower part of each lateral part of the inner wall surface 8f having the downward inclined surface has an inclination with respect to the horizontal plane (inclination angle α2 in FIG. 9B) is the inclination of the part on the center side in the circumferential direction of the inner wall surface 8f. The lower end edge 8e of the inner wall surface 8f that is in contact with the upper surface of the power supply plate P is configured to be a steeply inwardly inclined surface portion 8fs that increases toward the side edge in a state larger than (inclination angle α1 in FIG. 9B). Among these, the lower end edge 8es corresponding to the sharply inwardly-declining inclined surface portion 8fs is configured to be positioned radially outward of the power supply plate P toward the side end.
9A is a perspective view of the plug receiving box 8, and FIG. 9B shows the difference in inclination with respect to the horizontal plane between the circumferentially central portion of the inner wall surface 8f and both lateral portions. It is a figure explaining.

Specifically, as shown in FIG. 5, the inner wall surface 8 f of the plug receiving box 8 is configured as a concave curved surface-like inner downward inclined surface along the lower outer peripheral surface of the bottom-squeezed kettle body K. Has been.
Moreover, as shown in FIG.6 and FIG.9, the lower end edge of the sharp inner side fall inclined surface part 8fs of both sides is comprised so that it may become arc shape.

As shown in FIGS. 1 and 5, when the kettle main body K is rotated around the power receiving mechanism 3 with the power feeding posture placed on the power supply plate P, the protruding portion 9b at the bottom of the kettle main body K is plug-received. It will hit the bottom of box 8.
Then, both lateral portions of the inner wall surface 8f of the plug receiving box 8 are configured as a steep inwardly inclined surface portion 8fs, and the lower end edge 8es corresponding to the steeply inwardly inclined surface portion 8fs is closer to the side end. Even if the kettle body K is rotated around the power receiving mechanism 3 in a state where the kettle body K is placed on the power supply plate P in the power feeding posture, the bottom portion of the kettle body K is configured so as to have an arc shape located outward in the direction. The protruding portion 9b rides on the lower portion of the inner wall surface 8f of the plug receiving box 8 so that the riding posture is not maintained.

Further, as shown in FIG. 10, the kettle main body K has its bottom protruding portion 9 b completely riding on the upper portion of the plug receiving box 8, and the upper surface of the mounting portion 28 of the power supply plate P and the upper portion of the plug receiving box 8. The power receiving mechanism 3 and the power feeding mechanism 5 are respectively a kettle body K and a power plate so that the power receiving mechanism 3 and the power feeding mechanism 5 are in a non-conducting state in a state where the power receiving mechanism 3 and the power feeding mechanism 5 are placed in an inclined posture across the P is provided.
Specifically, in a state where the kettle body K is placed on the power supply plate P in an inclined posture as described above, the power feeding mechanism 5 is not fitted into the power feeding mechanism fitting recess 18d at the bottom of the kettle body K. Thus, the power receiving mechanism 3 and the power feeding mechanism 5 are provided on the kettle body K and the power supply plate P, respectively, so that the contacts do not come into contact with each other (do not spark), and the power receiving mechanism 3 and the power feeding mechanism 5 are in a non-conductive state. It is like that.

As shown in FIGS. 5 and 7, a plurality (four in this embodiment) of anti-slip members 33 are distributed on the bottom surface of the power supply plate P, and this installation form is a feature of the present application. In the following description and drawings, in order to distinguish the installation positions of the anti-slip members provided dispersedly on the bottom surface of the power supply plate P, a reference numeral (for example, “33”) indicating the anti-slip member is attached. A letter “a” is attached to indicate a non-slip member located at a position corresponding to a portion where the plug receiving box 8 is present on the bottom surface of the power supply plate P, and a symbol indicating the anti-slip member (for example, “33”) is “ b ”denotes a non-slip member positioned at a position corresponding to a portion where the plug receiving box 8 does not exist on the bottom surface of the power supply plate P.
That is, the total bottom area including the bottom area of the anti-slip member 33a at the position corresponding to the portion where the plug receiving box 8 exists on the bottom surface of the power supply plate P corresponds to the portion where the plug receiving box 8 does not exist on the bottom surface. The non-slip member 33b located at the above position is arranged in a state where the total bottom area is equal to or larger than the total bottom area.
Furthermore, in this embodiment, the plurality of anti-slip members 33 are provided in a distributed manner in the circumferential direction on the bottom surface of the power supply plate P.

The position corresponding to the portion where the plug receiving box 8 is present on the bottom surface of the power supply plate P is surrounded by the outermost peripheral portion of the plug receiving box 8 in plan view as shown by hatching in FIG. A region H is shown. Incidentally, the innermost part of the power supply plate P in the outermost peripheral part of the plug receiving box 8 is a lower end edge 8e in contact with the upper surface of the power supply plate P in the inner wall surface 8f of the plug receiving box 8, and the other parts are This is the peripheral edge of the lower wall surface 8b.
And that the anti-slip member 33a is in a position corresponding to the portion where the plug receiving box 8 exists on the bottom surface of the power supply plate P means a state in which at least a part of the bottom surface of the anti-slip member 33a exists in the region H. .

The four anti-slip members 33 are each constituted by a cylindrical anti-slip member 34 having the same diameter (the same bottom area). Of the four cylindrical anti-slip members 34, two cylindrical anti-slip members 34a are arranged along the circumferential direction at a position corresponding to the portion where the plug receiving box 8 is present on the bottom surface of the power supply plate P. The remaining two cylindrical anti-slip members 34b are provided at positions corresponding to portions where the plug receiving box 8 does not exist on the bottom surface of the power supply plate P. Here, the two cylindrical anti-slip members 34a are straight from the center of the mounting portion 28 of the power supply plate P in the direction of dividing the plug receiving box into two (in FIG. 7, from the center of the mounting portion 28 to the left). Are each displaced by about 10 ° with respect to the straight line). On the other hand, the two cylindrical anti-slip members 34b are arranged so as to be shifted from each other by about 120 ° with respect to the same straight line. Accordingly, the cylindrical anti-slip members 34a (two pieces) and the two cylindrical anti-slip members 34b are respectively located at three positions shifted by about 120 ° at the central angle centered on the mounting portion 28 of the power supply plate P. Distributed.
Incidentally, the cylindrical anti-slip member 34 is made of rubber, and is configured to prevent slip by a static frictional force, an adsorption force, an adhesive force, and the like. The force that prevents sliding is increased.

Furthermore, in this embodiment, each of the four cylindrical anti-slip members 34 overlaps with the kettle body K in the vicinity of the outer periphery of the kettle body K placed on the power supply plate P in a power feeding posture in plan view (ie, The power supply plate P is provided on the bottom surface so as to be positioned in the outermost peripheral portion of the kettle main body K (in the vicinity of the inner side of the portion indicated by the broken line in FIG. 7).
As shown in FIG. 5, in this embodiment, the kettle main body K supplies power to the power supply plate P in a state where the central portion of the bottom surface of the main body 9 is in contact with the upper surface of the mounting portion 28 of the power supply plate P. It is configured to be placed in a posture.

Incidentally, in order to prevent the power supply plate P from rattling when the power supply plate P is placed on a table or the like, the power supply plate P is supported at three points distributed substantially evenly in the circumferential direction of the bottom surface thereof. Preferably, the anti-slip members 33 are preferably provided at three locations that are substantially evenly distributed in the circumferential direction of the bottom surface of the power supply plate P.
In the present embodiment, the cylindrical anti-slip members 34 as the four anti-slip members 33 are provided on the bottom surface of the power supply plate P. However, the three anti-slip members 34 are distributed almost uniformly in the circumferential direction of the bottom surface of the power supply plate P. Among them, two cylindrical anti-slip members 34a are provided close to each other at one place corresponding to the portion where the plug receiving box 8 exists in the circumferential direction of the power supply plate P, and the cylindrical anti-slip is provided at the other two places. Since the members 34b are provided one by one, the power supply plate P is substantially supported at three points that are substantially evenly distributed in the circumferential direction of the bottom surface. Of course, it is not necessary to provide the two cylindrical anti-slip members 34a close to each other, and the two cylindrical anti-slip members 34a may be provided apart from each other in the circumferential direction of the power supply plate P to support four points.

[Another embodiment]
Next, another embodiment will be described.
(A) Plug the plurality of anti-slip members 33 into the bottom surface of the power supply plate P by adding the total bottom area of the anti-slip member 33a at the position corresponding to the portion where the plug receiving box 8 exists on the bottom surface. The arrangement of the non-slip member 33b in the position corresponding to the portion where the receiving box 8 does not exist is distributed in the circumferential direction on the bottom surface of the power supply plate P in a state where the total bottom area is equal to or larger than the total bottom area. The arrangement position, the number, the shape of each anti-slip member 33 and the like are not limited to those exemplified in the above embodiment, and an example will be described below as another embodiment thereof.

  (A-1) For example, as shown in FIG. 11A, when four cylindrical anti-slip members 34 similar to those in the above embodiment are provided, the plug receiving box 8 is present on the bottom surface of the power supply plate P. The two anti-slip members 34a provided at positions corresponding to the portions are shown in broken lines in FIG. 11 (a) in the outermost peripheral portion of the kettle main body K placed in the power supply posture on the power supply plate P in plan view. (Part) may be provided side by side along the radial direction of the power supply plate P in a state of being distributed to the vicinity of the outer side and the vicinity of the inner side.

  (A-2) Further, as shown in FIGS. 11B to 11D, plugs are provided on the bottom surface of the power supply plate P at positions corresponding to the portions where the plug receiving box 8 exists on the bottom surface of the power supply plate P. One anti-slip member 33a having a bottom area larger than the total bottom area of the bottom areas of the anti-slip members 33b located at positions corresponding to the portions where the receiving box 8 does not exist may be provided. In this case, at the position corresponding to the portion where the plug receiving box 8 exists on the bottom surface of the power supply plate P, the anti-slip member 33a divides the plug receiving box into two from the center of the mounting portion 28 of the power supply plate P. Are arranged so as to be positioned on a straight line (in FIG. 11 (b) to (d), a straight line extending in the left direction from the center of the mounting portion 28). On the other hand, the two anti-slip members 33b are arranged so as to be shifted from each other by about 120 ° with respect to the same straight line. Therefore, each of the anti-slip member 33a and the two anti-slip members 33b is distributed at three positions that are approximately 120 ° apart from each other with a central angle centered on the mounting portion 28 of the power supply plate P. As a result, the power supply plate P is supported at three points distributed substantially evenly in the circumferential direction of the bottom surface thereof, and the power supply plate P can be placed on a table or the like so as not to rattle.

Hereinafter, for example, among the three locations that are substantially evenly distributed in the circumferential direction of the power supply plate P, the cylindrical anti-slip member 34b is provided in two locations corresponding to the portion where the plug receiving box 8 does not exist, as in the above embodiment. A description will be given of the case where each is provided.
As shown in FIGS. 11B and 11C, the bottom areas of the two cylindrical anti-slip members 34b are aligned with the positions corresponding to the portions where the plug receiving box 8 is present on the bottom surface of the power supply plate P. Alternatively, one rectangular antiskid member 35 having a rectangular bottom surface with an area larger than the total bottom area may be provided.
And such a rectangular-shaped anti-slip | skid member 35 may be provided in the state which made the longitudinal direction follow the circumferential direction of the power supply plate P, as shown to (b) of FIG. Alternatively, as shown in FIG. 11 (c), the rectangular anti-slip member 35 may be provided with the longitudinal direction along the radial direction of the power supply plate P. In the example of FIG. 11B, the rectangular anti-slip member 35 is placed in the outermost peripheral portion of the kettle body K placed on the power supply plate P in a power feeding posture in plan view (in FIG. 11B). In the example shown in FIG. 11C, the rectangular anti-slip member 35 is placed on the power supply plate P in a power feeding posture in a plan view. It is provided directly below the outermost peripheral portion of K (the portion indicated by the broken line in FIG. 11C).
Further, as shown in FIG. 11 (d), at the position corresponding to the portion where the plug receiving box 8 is present on the bottom surface of the power supply plate P, the total area including the bottom areas of the two cylindrical anti-slip members 34b is combined. A large-diameter cylindrical antiskid member 36 having a circular bottom surface with an area larger than the bottom area may be provided. In the example shown in FIG. 11 (d), the large-diameter columnar anti-slip member 36 is placed on the power supply plate P in the power supply posture in the outermost peripheral portion (the broken line in FIG. 11 (d)). It is provided directly under the part indicated by.

(A-3) Furthermore, in providing a plurality of anti-slip members 33 in the circumferential direction distributed on the bottom surface of the power supply plate P, as in the above embodiment, all the anti-slip members 33 are in plan view. The present invention is not limited to the case where the power supply plate P is provided so as to be positioned in the vicinity of the innermost side of the outermost peripheral portion of the kettle main body K placed in the power feeding posture.
For example, all the anti-slip members 33 may be provided so as to be located directly below the outermost peripheral portion of the kettle body K placed on the power supply plate P in a power feeding posture in plan view.
Alternatively, in plan view, a part of the plurality of anti-slip members 33 is positioned on the inner side of the outermost peripheral portion of the kettle main body K placed on the power supply plate P in a power feeding posture, and the rest is connected to the power supply plate You may provide so that it may be located in the outer side of the outermost periphery part of the kettle main body K mounted in P with the electric power feeding attitude | position.
For example, as shown in FIG. 12A, at the position corresponding to the portion where the plug receiving box 8 is present on the bottom surface of the power supply plate P, the two cylindrical anti-slip members 34a are connected to the outermost peripheral portion of the kettle body K. Two cylindrical anti-slip members provided in the vicinity of the outer side of the portion (shown by broken lines in FIG. 12A) and corresponding to the portion where the plug receiving box 8 does not exist on the bottom surface of the power supply plate P 34 b may be provided in the vicinity of the innermost side of the outermost peripheral portion of the kettle main body K.
Alternatively, as shown in FIG. 12C, at the position corresponding to the portion where the plug receiving box 8 is present on the bottom surface of the power supply plate P, the two cylindrical anti-slip members 34a are connected to the outermost peripheral portion of the kettle body K. Two cylindrical anti-slip members provided in the vicinity of the outer side of the portion (shown by broken lines in FIG. 12C) and corresponding to the portion where the plug receiving box 8 does not exist on the bottom surface of the power supply plate P 34b may be provided so as to be biased toward the center side of the kettle main body K.
As shown in FIGS. 12A and 12C, at the position corresponding to the portion where the plug receiving box 8 exists on the bottom surface of the power supply plate P, the two cylindrical anti-slip members 34a are attached to the left wall surface 8h. It may be provided in the vicinity and in the vicinity of the right side wall surface 8m so as to be separated from each other in the circumferential direction of the power supply plate P to support four points.
Further, as shown in FIG. 12B, the outermost peripheral portion of the kettle main body K (see FIG. 12B) in which all the anti-slip members 33 are placed on the power supply plate P in a power feeding posture in plan view. The portion indicated by the broken line in FIG.

  (A-4) Moreover, the leg part contact | abutted to the upper surface of the power supply plate P is provided in cyclic | annular form in the bottom part of the kettle main body K. As shown in FIG. Further, the plurality of anti-slip members 33 may be provided so as to be positioned directly below the annular leg portion of the kettle main body K placed on the power supply plate P in a power feeding posture in plan view.

(B) The outer shape of the plug receiving box 8 is not limited to the shape illustrated in the above embodiment, but is box-shaped and has an inner wall surface 8f, an upper wall surface 8t facing the radially inner side of the power supply plate P, The bottom wall surface 8b, the left wall surface 8h, and the right wall surface 8m are provided with five wall surfaces to form an internal space, and any configuration having an opening facing the radially outward side of the power supply plate P may be used. be able to. For example, although the inner wall surface 8 f of the plug receiving box 8 is configured as an inwardly inclined surface in the above embodiment, it may be configured as a surface perpendicular to the upper surface of the mounting portion 28.

(C) In the above embodiment, the case where the power receiving mechanism 3 is provided in the central portion of the bottom surface of the kettle body K and the power feeding mechanism 5 is provided in the central portion of the upper surface of the mounting portion 28 of the power supply plate P is illustrated. The position of the power receiving mechanism 3 on the bottom surface of the main body K and the position of the power feeding mechanism 5 on the top surface of the power supply plate P can be variously changed.

  As described above, a heating container such as an electric kettle that can improve safety can be provided.

1 Reservoir 2 Electric heater (heating means)
3 Power receiving mechanism 3a Center electrode (Contact of power receiving mechanism)
3b Ring electrode (contact point of power receiving mechanism)
4 Power cord 5 Power supply mechanism 5a Center electrode (contact point of power supply mechanism)
5b Outer electrode (contact point of power supply mechanism)
6 Magnet plug 7 Plug receptacle 8 Plug receptacle box
8b Lower side wall surface 8e Lower end edge 8f Inner wall surface 8fs Steep inwardly inclined surface
8h left wall
8m right wall
8t Upper wall surface 9b Protruding part 22 Magnet
24 Plug receiving case
25 Rectangular frame
28 Placement section
31 Lower member
32 Upper member 33 Non-slip member K Kettle body (main body)
H Position corresponding to the part where the plug receiving box exists on the bottom surface of the power supply plate P Power supply plate

Claims (4)

A bottomed cylindrical shape provided with a storage section for storing hot water to be heated and a heating means for heating the hot water in the storage section, and a power receiving mechanism for supplying electric power supplied from the outside to the heating means. The body,
A power supply mechanism that outputs power supplied from a power source through a power cord to the outside is provided on the top surface, and a power supply plate that includes a mounting portion on which the circular bottom portion of the main body can be freely mounted,
In the power supply posture in which the main body is mounted on the mounting portion of the power supply plate, the power reception mechanism and the power supply mechanism are connected to each other and are configured to be supplied with power from the power supply mechanism to the power reception mechanism. An electric kettle,
The power cord and the power plate include a magnet plug provided on the power cord, and a rectangular frame portion provided on the power plate and detachably holding the magnet plug by a magnet attracting force. Connected by a plug receiver with a plug receiving case,
A box-shaped plug receiving box for storing the plug receiving case of the plug receiving;
The plug receiving box includes an inner wall surface, an upper wall surface, a lower wall surface, a left wall surface, and a right wall surface facing the radially inner side of the power plate to form an internal space, and the radial direction of the power plate With an opening facing outward,
The power supply plate includes a lower member that forms a bottom surface of the mounting portion and an upper member that forms an upper surface of the mounting portion, and the lower member and the upper member sandwich the plug receiving case. Assembled in a state, the plug receiving case is configured to be accommodated in the internal space of the plug receiving box,
In a state where the lower member and the upper member are assembled, the plug receiving box protrudes upward from the upper surface of the mounting portion of the power supply plate, and substantially the entire plug receiving box is formed on the power supply plate. In a state of projecting to the side of the main body placed in the power feeding posture on the placement section, the power supply plate is continuously formed in a part of the circumferential direction of the placement section,
A plurality of anti-slip members are provided in a distributed manner on the bottom surface of the mounting portion in the power supply plate, and the anti-slip member is located at a position corresponding to a portion where the plug receiving box is present on the bottom surface of the mounting portion. An electric kettle arranged such that the total bottom area combined with the bottom area is equal to or greater than the total bottom area including the bottom areas of the non-slip members located at positions corresponding to the portions where the plug receiving box does not exist on the bottom surface. .   The power supply plate such that each of the plurality of anti-slip members is positioned in a position overlapping the main body in the vicinity of the outer periphery of the main body placed in the power feeding posture on the mounting portion of the power supply plate in plan view. The electric kettle according to claim 1, wherein the electric kettle is provided on a bottom surface of the mounting portion. The power receiving mechanism is provided in a central portion of the bottom surface of the main body, and the power feeding mechanism is provided in a central portion of the upper surface of the mounting portion in the power supply plate;
A projecting portion projecting radially outward at a part of the circular bottom of the main body has the power receiving mechanism in a state where the main body is placed on the mounting portion of the power supply plate in the power feeding posture. When rotated to the center, provided in a positional relationship to hit the plug receiving box,
The main body is mounted on the mounting portion of the power supply plate in an inclined posture straddling the upper surface of the power supply plate and the upper portion of the plug receiving box, with the protruding portion of the circular bottom portion riding on the plug receiving box. 3. The electric kettle according to claim 1, wherein the contact point of the power receiving mechanism and the contact point of the power feeding mechanism are in a non-conducting state in a state where the power is received. The inner wall surface facing the inner side of the power supply plate in the plug receiving box is configured as an inner lower inclined surface in a form located on the lower side toward the inner side of the power plate, and the inner lower inclined surface shape At least the lower side portions of both lateral portions of the inner wall surface are configured as sharply inwardly inclined surfaces that increase toward the side edge in a state in which the inclination with respect to the horizontal plane is larger than the portion on the circumferential center side of the inner wall surface. ,
Of the lower edge of the inner wall surface that is in contact with the upper surface of the power supply plate, the lower edge corresponding to the steeply inwardly descending inclined surface portion is positioned radially outward of the power supply plate toward the side edge. The electric kettle according to claim 3.

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