JPH0445650Y2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> This invention relates to an electric heating container such as an electric rice cooker or an electric pot in which an operation switch is operated from the shoulder of the outer case.

<Prior Art> Conventionally, in electric heating containers such as electric rice cookers and electric pots, an inner container is provided inside an outer case, and the inner pot is housed in the inner container so as to be able to be heated. In order to facilitate observation and operation of the device, a device is provided in which a display section for displaying setting conditions or heating conditions is provided on the shoulder of the outer case, and an operation switch is operated from the shoulder. In such an electric heating container, an operation board is provided near the shoulder, and a power supply board including a heavy transformer and the like is provided near the bottom of the outer case, spaced apart from the shoulder. Furthermore, the transformer and the like are attached to the outer case in a state where they are exposed from the power supply board.

<Problems to be solved by the invention> However, in the electric heating container with the above configuration,
Since the operation board and power supply board as electrical components are installed separately in separate positions near the shoulder and near the bottom of the outer case, there is a problem in that it is troublesome to attach the electrical components to the outer case. Ta.
In addition, because the electrical components are attached to the outer case without covering them, the electrical components may interfere with other parts when assembling the outer case, making the above assembly process even more difficult. .

Furthermore, since the power supply board is installed below components such as the inner container and the bottom heater, the height of the outer case increases accordingly, making it difficult to lower the height of the electrically heated container.

Furthermore, since the operation board and the power supply board are installed at a distance, it is necessary to route wiring within the outer case, resulting in a structure that is susceptible to noise.
For this reason, parts for noise countermeasures are required, which increases the number of parts and raises the problem of high costs.

This idea was made in view of the above problems, and it not only makes it easy to install electrical components to the outer case, but also allows the height of the outer case to be kept low. The purpose of the present invention is to provide an electric heating container with good visibility and visibility.

<Means for Solving the Problems> In order to achieve the above object, this invention comprises a container body consisting of an outer case and an inner container, a lid unit for this container body, and an inner pot for cooking rice inside the container body. In the rice cooker, the rice cooker is equipped with a heating device that heats the inner pot and a heating control device that electrically controls the heating device based on a human operation signal, and on the outer peripheral surface of the body of the outer case. A shoulder is formed on a continuous upper extension line along the heating control device, and an operation panel having an operation section and a display section for inputting operation signals to the heating control device is provided on the shoulder, and the operation panel is configured to operate. It is formed on an upwardly sloped surface with a downward slope from above to below so that a component force in the pushing down direction acts on the electrical equipment immediately below the shoulder and between the outer case and the inner container. The present invention is characterized in that a box body for storing products is arranged, and electrical components including at least a power supply board are housed in the box body.

<Function> In the electric heating container configured as described above, the operation panel is provided on the shoulder on the continuous upper extension line along the outer peripheral surface of the body of the outer case, and the surface of the operation panel extends from the top to the bottom. It is said to be an upwardly sloping surface with a downward slope towards. Therefore, when pressing the operation panel, the pressing force consists of a force in the downward direction and a force in the lateral direction, and the force in the downward direction acts to facilitate operation. Furthermore, the body of the electrically heated container is less likely to shift laterally during the pressing operation. Further, the display section of the operation panel is easy to see from diagonally above, and the visibility of the display section is good.

In addition, since the electrical components including the power supply board are housed in the box, simply attach the box to the specified position between the outer case and the inner container, directly below the shoulder that operates the operation switch. Installation of electrical components is complete. Therefore, it is easy to assemble.

Furthermore, since the box body that stores the power supply board etc. is provided between the outer case and the inner container, there is no need to secure storage space for the power supply board at the bottom of the outer case as in the past, and the overall electrical The height of the heating container can be lowered.

Furthermore, electrical connection between the power supply board inside the box disposed directly under the shoulder and the operation panel on the shoulder can be realized using short wiring.

FIG. 1 is a partially cutaway longitudinal sectional view showing an electric rice cooker as an electric heating container of this invention. The electric rice cooker includes a side member 2 formed of a thin metal plate, a bottom member 3 of synthetic resin formed on the lower side of this side member 2, and a shoulder portion 4 of synthetic resin formed on the upper side of the side member 2. The device includes an outer case 1 consisting of the following, and an inner container 5 provided inside the outer case 1. The outer case 1 and the inner container 5 form the body of this electric rice cooker. A lid unit 7 is provided on the top of the container body so that it can be opened and closed. As shown in FIG. 4, which will be described later, the shoulder portion 4 is formed on a continuous upward extension line along the side member 2 forming the outer circumferential surface of the trunk of the outer case 1. The section is configured to form an upwardly sloped surface with an upward slope from the bottom to the top. On the other hand, inside the inner container 5, an inner pot 6 for cooking rice is removably housed. Further, 6e is a side heater for heating the inner pot 6 from the side, and a heat insulating material 5b is provided outside the side heater 6e to prevent heat radiation. Furthermore, a center sensor 6a is attached to a penetration part formed in the center of the bottom of the inner container 5, and a hot plate 6b is provided between the bottom of the inner pot 6 and the inner container 5, so that the heat A bottom heater 6c that directly heats the inner pot 6 is embedded in the plate 6b so as to surround the center sensor 6a. These bottom heater 6c and hot plate 6b constitute a heating device. A heating element 8 for heating the inner lid 9 is provided near the mouth edge 5a of the inner container 5, and a peripheral edge 9 of the inner lid 9 is provided.
The inner lid 9 is indirectly heated by contacting the metal plate 4b provided on the upper surface of the heating element 8.

A switch rod 20b for manually controlling the rice cooking conditions is mounted on the shoulder portion 4 on the operation board 21.
It is provided in such a manner that it can come into contact with a button-shaped operation switch 21a provided in the (see FIG. 2).
Further, the switch connecting rod 20b is connected to a box body 1 which will be described later.
It is exposed to the outside through a window hole 11b provided in the upper slope 11a of the front box 11 of 0, and is provided so as to be operable from the outside. A heating control device for electrically controlling a bottom heater 6c as a heating device is located directly below the shoulder portion 4 where the switch connecting rod 20b is provided and is located between the outer case 1 and the inner container 5. As shown in FIG. 1, electrical components such as a power supply board 30 having a transformer 31 etc. are inserted into and removed from the opening 3a provided at the bottom of the bottom member 3 while being housed in the box 10. Installed in place.

The inner container 5 has its mouth edge 5a suspended inside the shoulder 4, and the heating element 8 is partially buried in the upper surface of the shoulder 4 and is supported with good heat insulation. There is. Further, the heating element 8 has a synthetic resin upper member 4a with the metal plate 4b sandwiched between its upper surface.
is force-fitted into the shoulder portion 4 and fixed.

The inner pot 6 is made of metal with high thermal conductivity,
The mouth edge 6d projects upwardly from the upper surface of the shoulder 4 of the inner container 5. This is an inner pot 6 and an inner lid 9.
This is for the purpose of sealing the space inside the inner pot 6 by bringing the mouth edge 6d of the inner pot 6 into contact with the gasket 9b attached to the inner lid 9 when the inner pot 6 is covered.

The inner lid 9 is entirely made of a material with high thermal conductivity, for example, a metal such as aluminum, and is detachably attached to the lid unit 7. Further, a peripheral edge 9a of the inner lid 9 is suspended so as to be able to come into contact with a metal plate 4b provided on the upper surface of the heating element 8.

The lid unit 7 has a recess 7a formed at a predetermined position on its lower surface, and a recess 7a is provided in the recess 7a to prevent steam from leaking to the outside from between the lid unit 7 and the inner lid 9. An elastic packing 7b is attached.

In the above configuration, an operation panel having an operation section and a display section for inputting a human operation signal to the power supply board 30 as a heating control device is provided on the shoulder section 4. As mentioned above, the front part of the shoulder part 4 is a sloped surface, and since the operation panel is arranged on this slope, the surface of the operation panel is such that a force in the downward direction is applied during operation. , it is an upwardly sloped surface with a downward slope going from the top to the bottom.

This will be explained in more detail with reference to FIG.
Specifically, the operation panel includes the upper slope 11a of the internal box 11 and the switch connecting rod 2 provided there.
0b, an operation section consisting of an operation board 21, an operation switch 21a, etc., a display board 22, and a gasket 22.
c, liquid crystal display section 22a and display section cover 22b
The display unit is configured to include a display unit consisting of a display unit, etc.

The operation board 21 is provided integrally with the power supply board 30 above the power supply board 30, as shown in FIG. Further, a display board 22 for displaying the heating state is integrally provided on the upper part of the power supply board 30 and sandwiched between the operation boards 21. The display substrate 22 is covered with a display cover 22b integrally provided with a transparent liquid crystal display 22a in the center via an elastic gasket 22c to improve waterproofness.

The box body 10 is configured to be able to be disassembled into a front box 11 and a rear box 12, both of which are force-fitted with the power supply board 30 attached to the rear box 12 housed therein, and are held in a predetermined position. They are combined using a connecting member 12c such as a screw provided. Further, the box body 10 is connected to the bottom member 3 by the connecting member 12b through the metal bottom plate 3b and with the bottom portion 12a exposed to the outside through the opening 3a provided at a predetermined position of the bottom member 3. It is removably attached to the Further, a hole 13 is provided at a lower portion of the box 1 to allow a lead wire 32 to pass through. Note that 33 is a speaker installed to notify the rice cooking status.

With the above configuration, the power supply board 3 is placed inside the box body 10.
0, and also includes an operation board 21 and a display board 2.
2 is attached to the top of the box body 10, so when assembling electrical components to the outer case 1, the bottom member 3
The box body 10 is inserted through the opening 3a of the outer case 1.
The work of attaching electrical components to the outer case 1 is completed by simply guiding the electrical components between the inner container 5 and the inner container 5 and coupling them to a predetermined portion of the bottom member 3 using the coupling member 12b. Also,
In order to take out the electrical components from the outer case 1, the box body 10 can be taken out from the opening 3a by simply releasing the coupling member 12b. Moreover, since the electrical components are not exposed to the outside, the electrical components can be easily handled without interfering with other components when assembling the electrical components. Therefore,
Compared to conventional systems in which the operating switch 21a is provided near the shoulder of the outer case and the power supply board is provided near the bottom of the outer case, electrical components can be assembled and removed from the outer case 1 more easily and quickly. This greatly improves work efficiency when assembling electric rice cookers.

Moreover, in the above embodiment, the power supply board 30
In addition, since the electrical components such as the operation board 21 and the display board 22 are integrally attached, the electrical components can be completely integrated into a unit, and work such as assembling the electrical components to the outer case 1 is made easier. can be done.

In addition, since it is provided between the outer case 1 and the inner container 5 and directly below the shoulder 4 for operating the operation switch 21a when the electrical components are housed in the box 10, the bottom of the outer case 1 The storage space for electrical components provided in the electric rice cooker becomes unnecessary, the height of the outer case 1 can be reduced by that much, and the electric rice cooker can be downsized.

Furthermore, since the operation board 21 to which the operation switch 21a is attached and the power supply board 30 are integrated, there is no need to route wiring inside the outer case 1.
As a result of being able to shorten the length of the lead wire, it becomes difficult to generate noise. Therefore, there is no need to provide components for noise countermeasures, which were conventionally necessary, and an increase in cost can be suppressed.

Further, FIGS. 3 and 4 show other embodiments. In this embodiment as well, an operation panel having an operation section and a display section for inputting a human operation signal is provided on the shoulder, and the operation panel is operated from above so that a force in the downward direction acts on the operation panel. It is formed on an upward slope with a downward slope. The operation board 21 is attached to the operation board attachment part 14 provided on the upper part of the box body 10 with a coupling member 21c such as a screw, and the operation board case 23 that covers the operation board 21 is attached to the operation board attachment part 14 provided at the top of the box body 10. It is force-fitted into the section 14. In this case, a recess 25 is provided in the shoulder 4 of the outer case 1, and the recess 25
A name plate 24 is attached to cover the operation switch 21a provided on the top of the box body 10 inserted through the opening 3a.
is pasted.

To explain in more detail, reference numeral 12d in the drawing is a tongue provided at the upper part of the rear box 12 of the box body 10, and 4d and 4c are the tongues 12d.
This is a hanging part that hangs down from the shoulder part 4 to prevent the box body 10 from wobbling when inserted. Also, 11d
is a synthetic resin protrusion provided on the front box 11 to regulate the position of the front part of the box body 10.
Further, inside the front box 11, there is a reinforcing rib 11c for supporting heavy objects such as the transformer 31.
is provided, and the operation board 21 and the power supply board 30 are connected by a lead wire 34.
Note that the lead wire 32 inserted through the hole 13 of the box body 10
is guided to a connector storage section 3c provided at a predetermined position of the bottom member 3, and is connected to a lead wire 32a on the cord reel side at the connector storage section 3c.

In the embodiment shown in FIGS. 3 and 4, the box 10 inserted into the opening 3a has its tongue 12d inserted between the hanging parts 4c and 4d, and the projection 11d allows the box 10 to extend forward. location is regulated,
Moreover, it is attached to the outer case 1 in a state where it is in contact with the heat insulating material 5b at the rear of the rear box 12. Therefore, it is possible to prevent the box 10 from rattling within the outer case 1, and even when receiving an external shock, the electrical components can be protected with good cushioning properties. Further, since the operation board 21 is covered with the operation board case 23, moisture resistance can be improved.

Further, as a structure near the operating switch 21a, the structure shown in FIGS. 5 and 6 can be mentioned.

In FIG. 5, 21a is a button-shaped operation switch, and 21e is an elastic support member whose one end is fixed to the operation board 21 and whose other end is bent. Further, 21d is a switch contact portion attached to the tip of the support member 21e. Further, 20a indicates an elastic switch button formed integrally with the shoulder portion 4;
0b indicates a switch connecting rod provided between the switch button 20a and the switch contact portion 21d. In the case of FIG. 5, the switch button 20a
By pushing from the outside, the switch connecting rod 20
By pressing the switch abutting portion 21d via the support member 21e, the support member 21e is bent, and the operating switch 21a can be operated.

Moreover, in FIG. 6, the difference from FIG. 5 is that the switch connecting rod 20b is rotatably supported on a shaft 21f provided at a predetermined position of the support member 21e, and when the switch button 20a is pressed. By doing so, the switch connecting rod 20b rotates,
This is the point of operating the operation switch 21a.

Next, as other examples, FIGS. 7 and 8 show
Examples include those shown in the figure. In this embodiment as well, as in the previous embodiments, an operation panel having an operation section and a display section for inputting a human operation signal is provided on the shoulder 4, and this operation panel is pressed in the downward direction during operation. It is formed into an upwardly inclined surface with a downward slope from the upper side to the lower side so that component force acts on it. In the figure, the main difference from the above embodiment is that electrical components such as the power supply board 30 are placed in the outer case 1.
The operation board 21 is attached to the front box 11 in a state facing inward, and the operation board 21 is fixed to the display cover 22b with a connecting member 21c such as a screw.
The tongue piece 22d provided on the display cover 22b is directly attached to the shoulder portion 4 separately from the box body 10 by a connecting member 35 such as a screw. Note that a lead wire 34 connecting the operation board 21 and the power supply board 30
After storing the box body 10 in the outer case 1, the box body 1
It is sufficient to provide some margin so that the lead wire terminal 34a exposed at the upper part of the terminal 0 can be connected to the operation board 21 through the window hole 4e provided in the shoulder section 4 for attaching the operation section 20. In addition, the display section cover 22b
It is preferable to form the tongue piece 22d horizontally with respect to the upper surface of the shoulder portion 4 and connect it perpendicularly to the connecting member 35 in terms of the strength of the tongue piece 22d and the workability of attaching the tongue piece 22d.

Also in the case of the embodiments shown in FIGS. 7 and 8, the outer case 1 of the box body 10 and the operation board 21
Assembling work for the electric rice cooker can be performed from the outside without much effort, and the workability of assembling the electric rice cooker can be improved. In addition, by filling the insertion hole 35a through which the coupling member 35 is inserted with, for example, a packing 35b made of rubber with excellent elasticity, when the lid unit 7 is opened, water droplets, viscosity, etc. can be removed from the shoulder. Even if it falls near 4, it can be prevented from penetrating into the outer case 1, and the electrical components inside can be protected. Furthermore, the speaker 33,
By attaching it to the operation board 21 installed on the shoulder 4 of the outer case 1 instead of attaching it to the power supply board 30 fixed to the front box 11, it is possible to prevent the sound from the speaker 33 from becoming difficult to hear externally. can. In addition, by arranging a heavy object such as the transformer 31 attached to the power source board 30 at the lower part of the box 10, it can be made less susceptible to the influence of heat from the heater.

Further, as other examples of changes in the vicinity of the operation section 20, there are those shown in FIGS. 9 and 10. The main difference between the figure and the previously described embodiment is that the operation board 21 is housed between the display cover 22b and the operation board cover 26, and the shoulder 4 is connected to the shoulder 4 by a connecting member 29 such as a screw. The lead wire 3 led from the power supply board 30 is attached to the recess 25 of the
4 is formed, and after the lead wire is connected, the notch 26a is filled with a filler 27 made of synthetic resin foam to ensure good watertightness. An insertion hole 28 for inserting the lead wire 34 corresponding to the notch 26a of the operation board cover 26 is provided in the upper part of the body 10, and the through hole 28 is connected to the filling 27.
It is sealed with a filler 28a made of the same material. Note that the upper surface of the display section cover 22b is
A transparent nameplate 24 is attached to ensure waterproofness.

In the case of FIGS. 9 and 10, for example, even if the gasket inside the outer case 1 is damaged and steam infiltrates into the space between the outer case 1 and the inner container 5, the display cover 22b will not close. It is possible to reliably prevent fogging and electrical components such as the operation board 21 and the power supply board 30 from being affected by steam.

The electric heating container of this invention is not limited to the above-mentioned embodiment, and for example, electrical components such as a microcomputer board having a microcomputer for controlling heating may be housed in the box body 10.
In addition, various design changes can be made without changing the gist of the invention.

<Effects of the invention> As described above, the electric heating container according to this invention is provided with an operation panel on the shoulder, and the operation panel has a downward direction from the top to the bottom so that a force in the downward direction is applied during operation. Since the electric heating container is formed with an upwardly inclined surface, the operation panel can be easily operated and the display section can easily see the display.

In addition, the electric heating container according to this invention has the electrical components, including at least the power supply board, housed in the box to form a unit, so the electrical components can be easily and quickly assembled to the outer case. The workability of assembling the heating container can be greatly improved.

Furthermore, since the box body is disposed using the space created below the inclined surface of the operation panel formed on the shoulder, there is also the effect that the empty space can be used effectively.

In addition, since the box body is provided between the outer case and the inner container, the storage space for the power supply board that was conventionally provided at the bottom of the outer case is no longer required, and the height of the outer case can be lowered by that amount, allowing for electrical It is possible to achieve miniaturization of the heating container.

Furthermore, electrical components such as the power supply board are centrally located directly under the shoulder where the operation switch is operated, so the wiring between the operation board and the power supply board can be shortened, minimizing the effects of noise. can be suppressed to Therefore, there is no need to provide components for noise countermeasures, which were conventionally required, and the number of components can be reduced, resulting in the unique effect that an inexpensive electric heating container can be provided.

[Brief explanation of drawings]

Fig. 1 is a partially cutaway vertical sectional view showing an embodiment of the electric heating container of this invention, Fig. 2 is an exploded perspective view of Fig. 1 showing a box and a power supply board housed in the box, and Fig. 3 is an exploded perspective view of Fig. The figure is an enlarged cross-sectional view of main parts showing a modified example of the box body and electric heating container, Figure 4 is an exploded perspective view of Figure 3 showing how the box body etc. are assembled into the outer case, and Figure 5
The figure is an enlarged sectional view of the main part showing the vicinity of the operation switch, Figure 6 is an enlarged sectional view of the main part showing a modification example of the vicinity of the operation switch, and Figure 7 is a state in which the box body and the operation board are separately attached to the outer case. 8th enlarged cross-sectional view of main parts showing
The figure is an exploded perspective view of Figure 7 showing the box body and the operation board, Figure 9 is an enlarged sectional view of main parts showing another modification of the operation board, and Figure 10 is an exploded perspective view of Figure 9 showing the operation board. figure. 1... Outer case, 4... Shoulder, 5... Inner container,
10...Box body, 21a...Operation switch, 30...
...Power supply board.

Claims (1)

[Scope of Claim for Utility Model Registration] A heating device that includes a container body consisting of an outer case and an inner container, and a lid unit for the container body, houses an inner pot for cooking rice in the container body, and heats the inner pot. and an electric heating container equipped with a heating control device that electrically controls the heating device based on a human operation signal, wherein a shoulder portion is formed on a continuous upward extension line along the outer peripheral surface of the body of the outer case. An operation panel having an operation section and a display section for inputting an operation signal to the heating control device is provided on the shoulder, and the operation panel is configured such that a force in a downward direction is applied to the operation panel when the operation panel is operated. , a box body for storing electrical components is formed on an upwardly sloped surface with a downward slope from above to below, and is disposed directly below the shoulder portion and between the outer case and the inner container; An electric heating container characterized in that electrical components including at least a power supply board are housed in the box.