JPH02223736A - electric stove - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to an electric stove that is used as a type buried in a kitchen table, etc., and more particularly, it relates to an electric stove that is used as a buried type in a kitchen table, etc. The shape of the heater unit,
These concerns include the structure of the body and back plate, improvements to lead wire processing and heat shielding, and safety measures in case the user accidentally forgets to turn off the power during use.

BACKGROUND OF THE INVENTION Various conventional electric stoves of this type have been proposed on the market. For example, in the case of the electric stove shown in Japanese Utility Model Publication No. 61-4163, an opening is provided in the center of the body 1, as shown in FIG. A decorative plate 3 is provided along with the receiver having a hole in the body 1, and a box-shaped back plate 4 is fixed to the back surface of the body 1. A soup tray 6 is placed in the center of the back plate 4, facing the tray 2. In addition, a heating element 6 consisting of a sheathed heater provided on a supporting metal fitting is removably mounted on the upper part of the tray 2 and the decorative plate 3, and is coupled to the receiver. Although not shown, the heating element 6 made of a sheathed heater is formed in a spiral shape, with its both ends bent downward and guided out to the side. It is pulled out to the side. Further, a gasket 7 is attached to the outer peripheral edge of the body 1 and is press-fitted between the gasket 7 and the table surface 8. A mounting bracket 9 is installed on the side surface of the back plate 7, and the entire vessel is suspended on a table surface 8.

In the conventional electric stove configured as described above, when the current is started, the heating element 6 consisting of a sheathed heater
generates heat, thereby supplying heat to the heated object in various types of cooking. The boiled-over soup from the object to be heated during cooking is received by a tray 2, and when there is more than a certain amount of boiled-over soup, the soup drips into the tray 6 and is stored there.

Problems to be Solved by the Invention Since the conventional electric stove is constructed as described above, when a large amount of boiled soup is produced during cooking and the soup receiver discards the soup from the plate 6, the sheathed heater υ heating element 6
or remove the decorative plate 3 while rotating and lifting the heating element 6 consisting of a sheathed heater. The tray 2 must be removed to receive the liquid, and the saucer 6 must be taken out from inside the back plate 4 to receive the soup, and as a result, the processing time is extremely time-consuming. In addition, normally, the measured amount stored in the soup pan 5 cannot be observed from the outside, and in some cases, the liquid may not be noticed until it spills from the soup pan 5, staining the inside of the back plate 4. Ta. Furthermore, since there are many parts to clean, a lot of time is spent on cleaning, and as a result, the cost of the electric stove is high.

Furthermore, the saucer 2 set in the opening of the body 1 is also formed in a deep drawn shape, and the back plate 4 is designed to release heat from the side notch.
As the atmospheric temperature within the chamber increases significantly, the soup tray
The height of the back plate 4 was extremely large due to the spacing between the sets, etc., making it difficult to make the entire vessel compact, and the storage space at the bottom of the vessel was small.

The present invention has been made in order to solve the above-mentioned problems of the conventional art, and it is possible to easily observe and confirm the accumulation of boiled liquid from the outside, and to extremely reduce the number of parts to be cleaned. It is possible to move and rotate with a simple operation, reducing the hassle of cleaning, and is safe in case you accidentally forget to turn off the power after using it for cooking.It is also inexpensive, compact, and has a simple shape. The purpose is to provide stoves.

Means for Solving the Problems In order to achieve the above object, an electric stove of the present invention includes a body having a concave central portion, a through hole provided at the top of the body, and a body having a concave central portion. A heater unit placed on the upper surface of the center part of the heater unit, and a shallow box-shaped back plate placed below the mJ debody, both ends of the sheathed heater of the heater unit are bent vertically downward, Its both ends are inserted into a mounting bracket having approximately the same diameter as the through-hole, and the mounting bracket is attached to the through-hole at the top of the body so as to be vertically movable, and the mounting bracket of the mI back plate is attached. A convex concave portion is provided directly below the concave portion, and a lead wire led out from the sheathed heater is guided and housed in the concave portion, and the lead wire is led out from inside the back plate, and the outer periphery of the bottom surface of the back plate is The unit is equipped with an electronic timer means. Furthermore, a heat shield plate is installed between the body and the bottom of the back plate, and an electronic timer means is provided on the lower surface of the back plate.

Effect With the above structure, the spilled liquid during cooking is stored in the concave part in the center of the body, so the storage status can be observed from the outside and dripping into the inside of the back plate can be prevented. can.

In addition, since the heater unit is located at the top of the body and the heater stopper is fixed to the end of the sheathed heater, the action of the heater stopper prevents juices and foreign matter from entering the through hole of the body. It is possible to prevent contamination, and since the heater unit is configured to be movable up and down by the action of the mounting bracket, it is easy to remove and clean spilled liquid.

Furthermore, a generally convex depression is provided at the bottom of the back plate directly below the mounting bracket, and the lead wires from the sheathed heater are guided and housed in this depression, so that the overall height of the back plate ( This makes it possible to compress the length of the entire body (downwards), and the overall shape of the body does not have an opening in the center like conventional stoves, and the recess in the center of the body reflects the heat from the heater. Combined with this effect, it reduces the temperature rise inside the back plate, making the height of the back plate more compressible, making it possible to create a shallow box-shaped back plate, and at the same time, even at the bottom of the back plate, where the temperature has been lowered, the temperature can be further reduced. An electronic timer means is installed on the lower outer periphery as a safety measure in case the user accidentally forgets to turn off the power during use.

Furthermore, a heat shield plate is installed in the appropriate space between the body and the bottom of the back plate to further reduce the temperature of the bottom of the back plate. It makes it possible to install the electronic timer mentioned above, is generally inexpensive, has a low overall height, and when installed in a kitchen unit, expands the storage space at the bottom of the device and protects against misuse. This guarantees safety and economy in case of accidental energization.

Embodiments Hereinafter, embodiments of the present invention will be described based on the accompanying drawings.

1 to 3 show a first embodiment of the present invention. In the figures, 11 is a body, and this body 11 has a concave portion 11a in the center and has a rectangular shape. . Further, a packing 12 is attached to the outer peripheral edge of the body 11.

A heater unit 13 forming a heating section is placed in the concave portion 11a at the center of the body 11, and the heater unit 13 is attached to the body 11 so as to be movable up and down by a configuration described later. ing. The sheathed heater 14 constituting the heater unit 13 is mounted on and coupled to a heater support fitting 15 made of sheet metal provided radially from the center, and its effective heat generating portion forms a spiral shape. The sheathed heater 14 is connected to the heater support fitting 15 at a proper position. Further, the spiral inner and outer circumferential end portions of the sheathed heater 14 extend substantially tangentially, and are bent vertically downward from an appropriate position of the extended portion, and the vertical portion is bent at an appropriate position. It is fixed with a heater stopper 16.

At the top of the rectangular body 11, a through hole 17 is provided at a corner on the rear side of the vessel, and the end portion of the sheathed heater 14 described above is inserted into this through hole 17. In addition, the outer diameter of the heater stopper 16 is made slightly larger than the diameter of the through-hole part 17, so that the through-hole part 17 always stays in place during normal mounting.
7 is closed. In addition, from below, the through hole portion 17 is filled with, for example, die-cast aluminum,
copper.

A mounting bracket 18 made of a metal with good thermal conductivity such as copper alloy or iron is provided, and the terminal portion of the sheathed heater 14 described above is inserted into this mounting bracket 18, and this mounting bracket 18 is connected to the heater stopper 16. through hole 1 of body 11
It is installed on 7.

The outer diameter of the mounting bracket 18 is approximately the same as the diameter of the through hole 17,
In addition, the diameter of the lower part is made υ larger than the diameter of the through hole 17, so that the heater unit 13 as a whole can be moved up and down and is prevented from being pulled out. Also, on the back side of the heater stopper 16, a grounding metal fitting (
(not shown) is attached.

An electronic timer 25 is housed in a box-shaped metal case and provided on the outer periphery of the lower surface of the shallow box-shaped back plate 19, which is a low-temperature area. Note that the electronic timer is electrically connected to the sheathed heater and the switch control section 2o through predetermined wiring.

At the bottom of the shallow box-shaped back plate 19, directly below the mounting bracket 18, a depression 19& is formed downward by a press-formed drawing. A lead wire 2o connected to is led out, housed in a bent curvature state, led out along the bottom of the back plate 19, led out to the outside, and coupled to the control section 20. Said back plate 19
The height of the back plate 19 is consistent with the ambient temperature inside the back plate 19, the rise in floor surface temperature within the range of JIS and electrical standard values, the heat resistance temperature of the lead wires, the cost reduction of the entire back plate, etc. All you have to do is set it. Note that the above-mentioned recessed portion 19a can also be formed by attaching a required box as a separate part to the back plate 19. In addition, the entire vessel has a packing 12 on the table surface 22.
It is fixed by being clamped and pressure-bonded with a locking metal fitting 23 via.

The operation of the above configuration will now be described.

During cooking, the boiled liquid flows into the concave portion 1 of the body 11.
Since it is stored in 1a, it does not fall inside the back plate 19, and this storage state can be easily confirmed from the outside. In addition, when cleaning the boiled liquid stored in the concave portion 11a, the entire heater unit 13 is
Since the through-hole portion 1111 of the body 11 and the mounting bracket 18 are configured to allow two vertical sliding movements and to prevent removal, the concave portion 1111 of the body 11 can be cleaned with a simple operation. This not only reduces the number of parts to be cleaned, but also improves processing and time efficiency.

In addition, since there is a heater attachment part in the rear corner of the container, it does not get in the way during normal cooking.
This allows for improved operability.

In addition to this, the temperature of the sealing part (final terminal part) of the sheathed heater 14 is usually related to the insulation properties and the cost of the sealing material.
Lower temperatures are preferable from the viewpoint of

Providing the mounting portion at the corner has a good effect in combination with the simplicity of the overall vessel. In addition, since the attachment part is provided at the top of the body 11, it is possible to prevent boiled liquid that overflows from the concave part 11a of the body 11 from intruding as much as possible, and the heater stopper 16 has a through-hole. Since the section 17 is always closed, it is possible to prevent spilled boiled juice from scattering and foreign matter from entering, thereby preventing electrical breakdowns and staining the inside of the back plate 19. It is something.

In addition, since the mounting bracket 18 is made of a metal with good thermal conductivity, heat conduction and heat diffusion are smooth, and it plays the role of lowering the temperature of the sealing part of the sheathed heater 14. This exhibits the effect of guaranteeing insulation properties. As a result, it is possible to obtain an electric stove that has a small number of parts, is easy to clean, and is inexpensive.

In addition, in FIGS. 1 and 3, the heater unit 13
The heater support fitting 16, which is a component, is radial from the spiral center of the sheathed heater 14 and is made of sheet metal. If the inner diameters of the portions 11a are set to be approximately the same, the entire heater unit 13 will not rotate during normal use, thereby minimizing the external force applied to the mounting portion provided at the top of the body 11. This function can fulfill the role of reducing heat with a simple structure, and can guarantee the durability of the heater unit 13.

Further, at the bottom of the back plate 19, directly below the mounting bracket 18 (the bottom of the back plate 19 corresponding to the end portion of the sheathed heater), a recessed portion 19a is provided downward, and is connected to one end portion of the sheathed heater. The lead wire 2° is housed in the guide, and the height of the entire back plate 19 is compressed. The depth of the recessed portion 19a is sufficient to accommodate a lead wire allowance that does not cause any trouble when the heater unit 13 is moved up and down. Furthermore, there is no opening in the center of the body 11, and the heater support fitting 15 is held at a certain distance from the sheathed heater heat generating part, which has the effect of reflecting the heat of the heat generating element upward during use. The temperature rise inside the back plate 19 is kept to an extremely low temperature. In addition, the lead wire 20 is provided with a heat-resistant tube made of silicon to cover the outer skin, and as a result, the back plate 1
This makes it possible to significantly reduce the height of 9. Note that if the downward length of the mounting bracket 18 and the end portion of the sheathed heater from the through hole 17 is shortened, the back plate 1
It is obvious that the shallow box shape of No. 9 can be further promoted. In addition, an electronic timer 25 is installed on the outer periphery of the lower surface of the back plate 19, which is a low-temperature area, to ensure that the power is turned off in the event of misuse. Considering the aging characteristics, the temperature is limited to approximately 60° C., and this is guaranteed by providing the outer peripheral portion of the back plate 19.

FIG. 4 shows a second embodiment of the present invention, in which the back plate 19 is made into a shallow box shape and the storage space in the lower part of the vessel is further expanded. . That is, between the central part of the bottom of the body 11 and the bottom of the back plate 19 (in this embodiment, the central concave part 11a of the body 11 is
A metal heat shield plate 24 is provided (in this embodiment, claws are provided at appropriate positions on the heat shield plate 24, and the appropriate position has been experimentally obtained approximately 20 to 30 fl below the back plate 19). (The nail is bent and connected to the bottom part.) It reflects the heat downward from the entire central part of the body 11, and the bottom part of the back plate 19 and the back plate 19
This is to lower the internal atmospheric temperature.

An arbitrary part of the lower surface of the back plate 19 whose temperature has been significantly lowered (the position may be set according to the design under the conditions of Type 4) is provided with an electronic device that functions in the same manner as in the first embodiment. A type timer 25 is installed to further promote the shallow box shape of the back plate 19, to make the container more compact, to ensure safety, and to expand the storage space in the lower part of the container.

In addition, considering the cost from the producer's side, the shallow box shape allows the overall packaging to be made more compact at the time of shipping the product, which is extremely advantageous in mass production.

Effects of the Invention As is clear from the description of the above embodiments, according to the present invention,
Since the liquid that boils over during cooking is stored in the concave shape in the center of the body, the extent of the storage can be observed from the outside, and it is possible to prevent the liquid from dripping into the inside of the back plate.

In addition, the heater unit is located at the top of the body, and the heater stopper is fixed to the end of the sheathed heater, so the action of the heater stopper allows
It is possible to prevent liquids and foreign objects from entering the through holes in the body, and the heater unit can be moved up and down by the action of the mounting bracket, making it easy to clean and remove boiled liquid. The cleaning level is high, and the heater unit can be moved and rotated with simple operations. In addition, a recessed part is provided on the back plate, and the lead wire processing is done with a simple configuration, which has a synergistic effect with the overall shape of the body, making the back plate a shallow box shape, and reducing the temperature at the bottom of the back plate. This makes it possible to install an electronic timer on the outer periphery of the bottom surface of the back plate, which has a lower temperature, to prevent misuse.

Furthermore, by installing a metal heat shield plate in the space between the body and the bottom of the back plate, the temperature across the top of the back plate is significantly lowered, and the electronic timer described above can be operated at any location on the bottom of the back plate. This allows it to be installed in any position, and generally expands the storage space at the bottom of the vessel.

This has the effect of realizing an inexpensive electric stove with a high level of industrialization, such as compactness of the body, safety, and economic efficiency.

[Brief explanation of the drawing]

Fig. 1 is a vertical cross-sectional view of an electric stove according to a first embodiment of the present invention, Fig. 2 is a partial perspective view of the electric stove installed in a kitchen unit, and Fig. 3 is a partial perspective view of the electric stove as installed in a kitchen unit. 4 is a vertical sectional view of an electric stove showing a second embodiment of the present invention, FIG. 6 is a perspective view of the second embodiment, and FIG. 6 is a diagram of a conventional electric stove. FIG. 11...Body, 11a...Concave portion, 13...Heater unit, 14...
・Sheathed heater 16... Heater support fittings,
16... Heater stopper, 17...
Through-hole part, 18...Mounting bracket, 19...
Back plate, 19a... Depression, 2o... Lead wire, 25... Name of electronic timer agent Patent attorney Shigetaka Awano and one other person Figure 11- Potei 14 - Seeds - Evening

Claims (2)

[Claims] (1) A body with a concave central portion, a through hole provided at the top of the body, a heater unit placed on the upper surface of the central portion of the body, and a heater unit placed below the body. bending both ends of the sheathed heater of the heater unit vertically downward, and inserting both ends into a mounting bracket having approximately the same diameter as the through hole, The mounting bracket is attached to the through hole at the top of the body so as to be movable up and down, and a convex depression is provided directly below the mounting bracket on the back plate, and a sheathed heater is installed in the depression. An electric stove that guides and accommodates a lead wire led out from the back plate, leads the lead wire out from inside the back plate, and provides an electronic timer means on the outer periphery of the lower surface of the back plate. (2) The electric stove according to claim 1, further comprising a heat shield plate installed in the space between the body and the bottom of the back plate, and an electronic timer means provided on the lower surface of the back plate.