JPH02223737A - Electric hot plate - Google Patents

Abstract

PURPOSE:To make a device simple in shape and inexpensive and make it easy to observe spilt broth which is staying thereon and to clean the body by forming a body having a sunken part in the middle, by attaching the terminal ends of a sheathed heater to a through hole in such a manner as to make them freely movable up and down and around the through hole, and by receiving lead wires in a sunken space formed by an under plate and leading them out of the device. CONSTITUTION:Broth spilled during cooking stays in a sunken part 11a formed in a body 11 and does not fall into the inside of an under plate 19. The split broth staying on the body can be observed easily. The entire heater unit 13 is held by a through hole 17 in the body 11 and by a holder 18 in such a manner as to be slidable up and down and rotatable and with a stopper to keep the heater unit in place so that for the removal of spilt broth the sunken part 11a can be cleaned by a simple manner of handling. Directly below a holder 18 and at the bottom of the under plate 19 is formed a sunken space 19a where lead wires 20 connected with the terminals of a sheathed heater are drawn into a guide so that the height of the under plate 19 as a whole can be reduced considerably.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an electric stove that is used as a type buried in a kitchen table or the like.

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, as shown in FIG. 5, an opening is provided in the center of the body 1, and the center A tray 2 and a decorative plate 3 are provided on the receiver having a hole, 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 to the side. Further, a gasket 7 is attached to the outer peripheral edge of the body 1, and a table surface 8
It is clamped between the A mounting bracket 9 is set on the side surface of the back plate 7, and the entire vessel is suspended on the table surface 8.

In the conventional electric stove configured as described above, when electricity is started, the heating element 6 made 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 if there is more than a certain amount of boiled-over soup, the soup falls into the tray 6 and is stored there. be.

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 is discarded from the plate 5, the soup receiver is a sheathed heater. 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 5 must be removed from the inside of the back plate 4 to receive the soup, and as a result, the processing time is extremely time-consuming. In addition, normally, the juice that is stored in the saucer 6 cannot be observed from the outside, and in some cases, the juice may not be noticed until it spills from the saucer 6, staining the inside of the back plate 4. there were. Furthermore, since there are many parts to be cleaned, 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 body opening is also deep-drawn, which allows heat to be released from the side notches and significantly increases the atmospheric temperature inside the back plate 4. The height of the back plate 4 was extremely large, making it difficult to make the entire vessel compact, and the storage space in the lower part 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. The purpose of the present invention is to provide an electric stove that is compact, simple in shape, and capable of moving and rotating with a simple operation, reducing the effort required for cleaning, and being inexpensive.

Means for Solving the Problems In order to achieve the above objects, an electric stove of the present invention includes a body having a concave central portion, a through hole portion provided at the top of the body, and a body having a concave central portion. and a shallow box-shaped back plate placed below the body, with both ends of the sheathed heater of the heater unit 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 able to move up and down, and directly below the mounting bracket on the back plate. A concave portion having a convex shape facing downward is provided in the portion, a lead wire led out from the sheathed heater is guided and housed in the recessed portion, and the lead wire is led out from the inside of the back plate.

Function: With the above structure, the juice spilled during cooking is stored in the concave portion in the center of the body.
The storage condition can be observed from the outside, and dripping into the inside of the back plate can be prevented. 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, making it possible to reduce the overall height of the back plate. (the length of the entire body toward the bottom), and the overall shape of the body does not have an opening in the center like conventional stoves, and the concave part in the center of the body absorbs heat from the heater. Combined with the reflective effect, this reduces the temperature rise inside the back plate, making the height of the back plate more compressible, and making it possible to create a shallow box-shaped back plate.

Embodiments Hereinafter, embodiments of the present invention will be described with reference to 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. There is. 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 11 & 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. There is. The sheathed heater 14 constituting the heater unit 13 is mounted 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-shaped inner and outer circumferential end portions of the sheathed heater 14 extend substantially tangentially, and the extending portions are bent vertically downward from an appropriate position, and the appropriate positions of the vertical portions are They are fixedly connected by a stopper 16.

A through hole 17 is provided at the uppermost corner of the rectangular body 11 on the rear side of the vessel, and the end portion of the sheathed heater 14 described above is inserted into the through hole 17. Further, the outer diameter of the heater stopper 16 is made slightly larger than the diameter of the through-hole portion 17, so that the through-hole portion 17 is always attached during normal mounting.
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 the bracket mounting bracket 18 is connected to the heater stopper 16. and is attached to the through hole 17 of the body 1.1.

The outer diameter of the mounting bracket 18 is approximately the same as the diameter of the through hole 17,
Moreover, the diameter of the lower part is made larger than the diameter of the through-hole portion 17, thereby making the entire heater unit 13 vertically movable and preventing it from being pulled out.

Further, a grounding fitting (not shown) is attached to the back surface of the heater stoppering fitting 16.

A shallow box-shaped back plate 19 is fixed to the back surface of the body 11. The sheathed heater 14 has a lead wire 2o.
are connected to each other, and this lead wire 20 is connected to the back plate 19.
It passes through the inside of the controller and is led out to the outside, and is electrically coupled to the control unit 21 .

Directly below the mounting bracket 18 at the bottom of the shallow box-shaped back plate 19, a depressed portion 19a is provided downward by a press-formed drawing edge, and within this depressed portion 19a, a terminal portion of a sheathed heater is connected. The lead wire 2o is led out, stored in a bent curvature state, led out along the bottom of the back plate, led out to the outside, and connected to the control section 2°. The height of the back plate 19 is
The shallow box shape should be set in accordance with the atmospheric temperature inside the back plate, JIB, floor temperature rise within the electric range standard value range, heat resistance temperature of the lead wire, cost reduction of the entire back plate, etc. . Further, the above-mentioned recessed portion can also be formed by attaching the required box, which is a separate part, to the back plate 19. The entire body is attached to the table surface 22 via the gasket 12 with the locking fitting 2.
It is fixed by pressure bonding with 3.

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 17 of the body 11 and the mounting bracket 18 are configured to allow two vertical sliding turns and to prevent removal, the concave portion 11a 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 preferably lower from the viewpoint of insulation properties and sealing material cost. It has good effects when combined with a simple view of the entire body.

Also, since the mounting part is not provided at the top of the body 11,
In the unlikely event that boiled-over juice overflows from the concave portion 11a of the body 11, it can be prevented from entering as much as possible, and since the heater stopper 16 always closes the through hole 17, the spilled boiled-out soup can be prevented from scattering. .

It is possible to prevent foreign matter from entering, thereby making it possible to prevent electrical failure and to prevent the inside of the back plate 19 from becoming dirty.

In addition, since the mounting bracket 18 is made of 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, and has insulation resistance. It is effective in ensuring that

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 15, 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.

Furthermore, at the bottom of the back plate 19, the
The bottom part of the back plate 19 corresponding to the eave-to-wall end terminal area is provided with a recessed part 19a facing downward, and the lead wire 2o connected to the sheathed heater one end part is housed in the guide in this part. , the height of the entire back plate 19 is compressed.

The depth of the recessed portion 19a is sufficient to accommodate a lead wire margin 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 16 is held at a certain distance from the sheathed heater heat generating part, so that when in use, the heat of the heat generating element is reflected upward. It is very effective and reduces the temperature rise inside the back plate to a very low temperature.

Further, the lead wire 20 is provided with a heat-resistant duplex made of silicon to cover the outer skin, and as a result, the height of the back plate 19 can be significantly reduced. It is obvious that the shallow box shape of the back plate 19 can be further promoted by shortening the length of the mounting bracket 18 and one end of the sheathed heater downward from the through hole.

FIG. 4 shows a second embodiment of the present invention. In this embodiment, the back plate 19 is shaped into a shallow box, and the storage space of the kitchen sink in the lower part of the vessel is further expanded. It is something.

In the part between the continuous letters between the center part of the body bottom and the bottom part of the back plate [in the embodiment of the present invention, about 2° to 3oIIlI from the center concave part of the body.
! The lower part has been experimentally found to be at an appropriate position.] A metal heat shield plate 24 is provided. [In the present invention, claws are provided at appropriate locations on the heat shield plate 24, and the claws are bent and connected to the bottom of the back plate. are doing. ] It reflects the heat downward from the central region of the body, lowers the atmospheric temperature at the bottom of the back plate and inside the back plate, and as a result, further promotes the shallow box shape of the back plate 19, making the vessel more compact. The purpose is to increase storage space in the lower part of the vessel.

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 terms of mass production.

Effects of the Invention As is clear from the description of the embodiments described above, according to the present invention, the liquid boiled down during cooking is stored in the concave portion in the center of the body, so that the amount of storage is controlled by the outside. It is possible to observe from the inside and prevent 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 substances from entering the through-holes of the body, and the heater unit can be moved up and down by the action of the mounting bracket, making it easy to remove and clean spilled liquid. The cleaning level is high, and the heater unit can be moved and rotated with simple operations. In addition, the back plate has an appropriate recessed part and the lead wire processing is simplified, so the synergistic effect with the overall shape of the body allows the back plate to be shaped into a shallow box, and the bottom of the body and back plate. By installing a metal heat shield plate in between with a simple structure, the shallow box shape of the back plate is more actively promoted than the above, making the vessel more compact and securing more storage space at the bottom of the vessel. It is possible to aim for As described above, the present invention exhibits the effect of realizing an inexpensive electric stove with a high industrial level.

[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. FIG. 4 is a longitudinal sectional view of an electric stove showing a second embodiment of the present invention, and FIG. 6 is a longitudinal sectional view of a conventional electric stove. 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... recessed part, 2o... lead wire. Name of agent: Patent attorney Shigetaka Awano and one other person

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, This mounting bracket is attached to the through hole at the top of the body so as to be able to move up and down, and a downwardly convex recessed portion is provided directly below the mounting bracket on the back plate, and the seeds are inserted into this recessed portion. An electric stove in which a lead wire led out from a heater is guided and housed, and the lead wire is led out from inside a 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.