JP5862275B2 - Electric cooker - Google Patents

Description

  The present invention relates to a container for an electric cooker, for example, a main body case of a grill pan and a heat shield structure.

  As shown in FIG. 8, for example, a grill pan, which is a kind of electric cooker, is housed inside a main body case 1 that forms an outer shell and has legs at the bottom, and the heat from the heater 2 is stored inside the main body case 1. For cooking the dish-shaped heat shield 3 for preventing it from being transmitted to the case 1, the heater 2 disposed inside the heat shield 3, and the food set above the heater 2. A cooking container 4 such as a deep container, and a temperature adjusting means (not shown), etc., and by heating the cooked food in the cooking container 4 by setting the temperature with the temperature adjusting means and energizing the heater 2. is there. (For example, refer to Patent Document 1).

  As shown in the figure, the grill pan mainly uses a dedicated cooking container 4, and the sizes of the main body case 1 and the heat shield plate 3 are also made in accordance with the cooking container 4. For example, in the example shown in the figure, the bottom and sides of the cooking vessel 4 are covered with the heat shield plate 3, and the distance between the heat shield plate 3 and the main body case 1 is further reduced.

  Therefore, such a grill pan is conducted from the heater 2 to the lower surface, so that the heat remaining in the main body case 1 is trapped between the heat shield 3 and the main body case 1, which corresponds to erroneous detection of the temperature adjusting means. As a result, the heater 2 may be prematurely cut off, or a temperature fuse selected with a high operating environment temperature may inevitably increase the cost.

  Further, since the conventional grill pan is covered with the heat shield plate 3 including the side portion of the cooking container 4, the heat remaining in the main body case 1 is between the heat shield plate 3 and the main body case 1. When it is lifted up and released to the outside, it will be released without being reused for the cooking container 4 and could not contribute to energy saving.

  By the way, as for the said grill pan, although main body case 1 is made from one member, what consists of two members, the inner case and the outer case which gave designability, has come out for several years. When the diameter of the opening at the bottom of the inner case is smaller than the outer diameter of the heat shield plate, the inner case and the outer case are first assembled to form the main body case, and the heat shield plate is formed on the main body case. Will be assembled.

  However, a heater, a temperature adjusting lever, and a knob (see FIG. 1) are assembled in advance on the heat shield plate as a unit. Therefore, in order to attach the unitized heat shield to the main body case, it is necessary to provide a temperature adjusting lever and a notch for passing the knob in the inner case. Part of it hits the inner case, which may damage the inner case and cause a defective appearance.

Japanese Patent Laid-Open No. 10-216023

  The object of the present invention is to arrange a cooking container outside the outer diameter of the heat shield plate and to widen the gap between the outer diameter of the heat shield plate and the main body case as much as possible to improve the heat flow in the main body case. And recycle heat for cooking containers. Another object of the present invention is to facilitate the assembly of the heat shield plate by making the outer diameter of the heat shield plate smaller than the diameter of the opening at the bottom of the inner case.

  In order to achieve the above object, the present invention adopts the following configuration.

In the invention which concerns on Claim 1, the main body case, the heat-shielding board accommodated in the said main body case, the cooking container mounted in the said main body case, the heating means which heats the said cooking container, and temperature control means An inner diameter d1 of the contents storage portion of the cooking container is larger than an outer diameter d2 of the heat shield plate, and the outer diameter d2 of the heat shield plate and the inside of the main body case the horizontal distance T, the magnitude comb than the radius difference t between the outer diameter d2 of the heat shield plate and the inner diameter d1 of the contents of housing part of the cooking vessel, to improve the flow of heat in the main body case, and the cooking vessel The structure which aims to reuse the heat for .

In the invention which concerns on Claim 2, a main body case, the heat-shielding board accommodated in the said main body case, the cooking container mounted in the said main body case, the heating means which heats the said cooking container, and temperature control means An inner diameter d1 of the contents storage portion of the cooking container is larger than an outer diameter d2 of the heat shield plate, and the outer diameter d2 of the heat shield plate and the inside of the main body case The horizontal distance T is larger than the radius difference t between the inner diameter d1 of the contents storage part of the cooking container and the outer diameter d2 of the heat shield plate, the main body case has an inner case and an outer case, and the heat shield The outer diameter d2 of the plate is smaller than the diameter d3 of the opening at the bottom of the inner case.

  In the invention which concerns on Claim 1, the internal diameter d1 of the content storage part of a cooking vessel is made larger than the outer diameter d2 of a heat shield, and the horizontal distance T of the outer diameter d2 of a heat shield and the inside of a main body case is made into cooking. By making it larger than the radius difference t between the inner diameter d1 of the container content storage portion and the outer diameter d2 of the heat shield plate, more heat remaining in the main body case can be discharged quickly. As a result, the temperature rise of the main body case can be reduced, and the cost increase can be reduced. Moreover, since the heat which radiates can be given to a cooking container and a cooking container can be heated, thermal efficiency can be improved that much.

  In the invention according to claim 2, the body case is formed from the inner case and the outer case, and the outer case d2 is made smaller than the diameter d3 of the opening at the bottom of the inner case, thereby adjusting the temperature of the inner case. The notch for passing the lever for use and the knob becomes unnecessary, so that the design can be improved and the cost increase can be reduced. In addition, a part of the heat shield plate unitized at the time of attachment hits the inner case, and the adverse effect of making the inner case defective in appearance can be eliminated.

Whole sectional view of the electric cooker of the present invention Partially enlarged sectional view of the cooking container of FIG. 1 without the lid The perspective view which looked at the cooking container of this invention from the bottom part The perspective view which looked at the heater of this invention from the upper direction The perspective view which looked at the inner case of the invention of this application from the upper part The perspective view which looked at the outer case of this invention from the upper part The perspective view which looked at the heat-shielding board of this invention from upper direction Partial sectional view of a conventional cooking container

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  FIG. 1 shows an overall perspective view of a grill pan which is a kind of electric cooker of the present invention, FIG. 2 shows a partially enlarged sectional view thereof, and FIGS. 3 to 7 show cooking containers, heaters, an inner case, and an outer case. And the perspective view of a heat shield is shown.

  Below, it demonstrates using the grill pan which is a kind of electric cooker. The grill pan S includes a main body case 10 constituting the outer shell, a heat shield plate 20, a heater 25 as a heating means disposed inside the heat shield plate 20, and a temperature for controlling energization of the heater 25. It has the adjustment container 18 and the cooking container 30 etc. which are mounted above the heat shield plate 20.

  The main body case 10 is a resin member made up of an inner case 11 and an outer case 12. As shown in FIG. 5, the inner case 11 is a mortar-shaped cylindrical member having an upper and lower opening, and has an upper opening 13 and a lower opening 14 above it.

  The upper opening 13 has an upper end arc portion 13 a whose tip is bent outward in an arc shape, and the outer case 12 is forced by fitting the tip bent outward to the upper end portion of the outer case 12. Mounted on. The lower opening 14 is smaller in diameter than the upper opening 13, and a notch 14 a for avoiding the plug receiving / receiving portion 16 of the outer case 12 is formed in a part of the lower opening 14. A plurality of, for example, five legs 15 placed on the bottom surface are provided.

  As shown in FIG. 6, the outer case 12 is a container-like member having an upper opening, and a plug receiving and storing portion 16 for storing a plug receiver and temperature adjusting means on a part of a lower side surface of the outer case 12. A knob opening 17 for protruding a knob 18b (see FIG. 1) attached to the tip of the temperature adjusting lever 18a is provided. And the front-end | tip of the upper end circular arc part 13a of the inner case 11 is forcibly fitted to the upper end part of this outer case 12, and the main body case 10 is formed.

  When the main body case 10 is formed, an upper closed internal space 19 is formed above the main body case 10 between the inner case 11 and the outer case 12, as shown in FIG. Then, as indicated by black arrows, heat that is conducted from the heater 25 to the lower surface and stays in the main body case 10 enters the internal space 19 to form an air insulation portion. For this reason, the heat retention is enhanced during cooking and heat retention, and an energy saving effect is obtained.

  The temperature controller 18 is a unitized integral member having a temperature setting unit and a heat sensitive member. As described above, the temperature is set by the knob 18b attached to the tip of the temperature adjusting lever 18a. Further, a heat-sensitive member (not shown) is a part that detects the temperature of the cooking container 30 and is in contact with the bottom of the cooking container 30.

  The heat shield plate 20 is integrally formed by pressing a metal thin plate, and as shown in FIG. 7, the whole is a plate-like member having a circular shape in plan view, and prevents heat from being radiated downward. A heater 25 is attached to the bottom wall portion 21 of the heat shield plate 20.

  As shown in FIG. 4, the heater 25 serving as a heating means is formed by casting a sheathed heater 25 a (see FIG. 2) on a disk-shaped heat transfer plate made of a good heat conductor such as an aluminum alloy. Is attached to the bottom wall portion 21. Thereafter, as shown in FIG. 1, by screwing a screw 26 from the outer bottom surface side of the heat shield plate 20, a temperature adjusting lever 18a, which is a member of the temperature controller 18 and has a knob 18b attached to the tip, is provided. The heat shield unit is fixed and formed. The heat shield unit is attached to the outer case 12.

  The upper surface of the heater 25 has an arc shape, and the cooking container 30 is placed on the arc-shaped upper surface. The positioning rib 33 of the cooking container 30 is fitted to the outer peripheral end 25b of the arcuate upper surface.

  The cooking container 30 is a dish-like metal container, the surface of which is subjected to fluorine processing, and cooking such as boiled baked goods is performed inside. And the handle 31 is each provided in the location which a side wall part opposes, and makes the carrying container 30 easy to carry. During cooking, the lid 32 is closed as shown in FIG.

  The outer peripheral end of the cooking container 30 is formed with a flange 30a that is bent outward in an arc shape. Therefore, the heat conducted from the heater 25 to the lower surface and staying in the main body case 10 passes between the heat shield plate 20 and the main body case 10 and rises as indicated by white arrows in FIG. At that time, since it rises along the outer surface of the cooking container 30 and enters the flange 30a, the heat recovery rate of the cooking container 30 is improved, which contributes to energy saving.

  Also, as shown in FIG. 3, three positioning ribs 33 are provided on the bottom of the cooking container 30 at concentric circles at equal intervals. The positioning rib 33 may be ring-shaped, but if the positioning rib 33 is ring-shaped, particularly when the cooking container 30 is a deep pan, the positioning rib 33 is used as the outer peripheral end 25b of the heater 25. Even if it is not completely fitted, the cooking container 30 is placed on the wide surface of the positioning rib 33 and is stabilized in that state. Therefore, the user misunderstands that the cooking container 30 is completely set, and as a result, there is a risk of misuse.

  If three positioning ribs 33 are arranged at equal intervals in this way, that is, the positioning ribs 33 are arranged so as not to face each other, if the cooking container 30 is not completely set on the heater 25, It is the bottom surface of the cooking container 30 that does not have one positioning rib 33 and no positioning rib 33 facing it. Therefore, the cooking container 30 becomes unstable in an inclined state, and the user can easily know that the cooking container 30 is not completely set, thereby preventing misuse.

  By the way, as shown in FIG. 2, the inner diameter d1 (the outer end b) of the contents storage portion of the cooking container 30 is made larger than the outer diameter d2 (the outer end a) of the heat shield plate 20. Therefore, the outer surface of the cooking container 30 is located outside the outer end a of the heat shield plate 20, and the rising heat as shown by the white arrow in FIG. 2 is applied to the outer surface of the cooking container 30. The heat rising along the outer surface of the cooking container 30 enters the flange 30a and gives more heat to the cooking container 30.

  Further, as shown in FIG. 2, the horizontal distance T between the outer diameter d <b> 2 (the outer end a) of the heat shield 20 and the inside of the main body case 10 (the inner end c) is the content storage portion of the cooking container 30. A radius difference t between the inner diameter d1 (outer end b) and the outer diameter d2 (outer end a) of the heat shield plate 20 is made larger. Therefore, a space is surely formed between the outer surface of the cooking container 30 and the main body case 10. In addition, in order to make the space between the outer side surface of the cooking container 30 and the main body case 10 as wide as possible, it is preferable that t is not more than half of T, and preferably not more than 1/3.

  With such a configuration, the space between the outer surface of the cooking container 30 and the main body case 10 can be made as wide as possible, and much of the heat that is transferred from the heater 25 to the lower surface and stays in the main body case 10 can be quickly obtained. Can be discharged.

  As shown in FIG. 2, the outer diameter d <b> 2 (outer end a) of the heat shield 20 is smaller than the diameter d <b> 3 (outer end d) of the opening 14 at the bottom of the inner case 11. Therefore, first, the above-described heat shield unit can be assembled to the outer case 12 in advance. The assembly is performed by inserting a temperature adjusting lever 18 a having a knob 18 b at the tip into the knob opening 17 of the outer case 12. Thereafter, the inner case 11 is inserted from above the heat shield plate 20.

  In that case, the outer diameter d2 (the outer end a) of the heat shield plate 20 is smaller than the diameter d3 (the outer end d) of the opening 14 at the bottom of the inner case 11, and has a gap m. Can be inserted easily. After insertion, the inner case 11 is forcibly fitted to the outer case 12.

  With such a configuration, notches for passing the temperature adjusting lever 18a and the knob 18b through the inner case 11 become unnecessary, improving the design and reducing the cost. Further, a part of the heat shield plate 20 that is unitized at the time of attachment hits the inner case 11, and the adverse effects such as damage to the inner case 11 are eliminated.

  Moreover, since the main body case 10, the heat shield plate 20, and the heater 25 have a shape close to a flat shape in the conventional case, there was no heat path. As shown in FIG. 2, the path is formed between the outer surface of the cooking container 30 and the main body case 10 by making the heat shield plate 20 and the heater 25 nearly flat and raising the main body case 10.

  That is, as shown in FIG. 2, the upper end f of the heat shield plate 20 is set to n slightly higher than the upper end g of the heater 25. Then, the upper end e of the main body case 10 is set to N which is considerably higher than the upper end g of the heater 25, and the height difference N is set to 10 times or more of the height difference n. By configuring in this way, a path that is longer in the vertical direction can be formed between the outer surface of the cooking container 30 and the main body case 10, so that much heat is conducted from the heater 25 to the lower surface and stays in the main body case 10. Can flow more reliably along the outer surface of the cooking container 30, and the thermal efficiency is further increased.

  The invention of the present application is an invention in which claims 1 and 2 are reversed, that is, “[Claim 1] a main body case, a heat shield plate accommodated in the main body case, and a body case. An electric cooker comprising a cooking container, a heating means for heating the cooking container, and a temperature adjusting means, wherein the main body case has an inner case and an outer case, and is disposed outside the heat shield plate. An electric cooker characterized in that the diameter d2 is smaller than the diameter d3 of the opening at the bottom of the inner case. [Claim 2] The inner diameter d1 of the contents storage portion of the cooking container is the outer diameter of the heat shield plate. The horizontal distance T between the outer diameter d2 of the heat shield plate and the inside of the main body case is larger than d2 from the radius difference t between the inner diameter d1 of the contents storage part of the cooking container and the outer diameter d2 of the heat shield plate. The electric cooker according to claim 1, wherein the electric cooker is large.

  The present invention is not limited to the configuration of the above-described embodiment, and can be appropriately changed in design without departing from the gist of the invention.

DESCRIPTION OF SYMBOLS S ... Grill pan 10 ... Main body case 11 ... Inner case 12 ... Outer case 13 ... Upper opening part 13a ... Upper end circular arc part 14 ... Lower part opening part 14a ... Notch 15 ... Leg 16 ... Plug receiving storage part 17 ... Opening part 18 for picking ... Temperature adjuster 18a ... Temperature adjusting lever 19 ... Internal space 20 ... Heat shield 21 ... Bottom wall part 25 ... Heater 25a ... Sheath heater 25b ... Outer edge 26 ... Bis 30 ... Cooking container 30a ... Flange 31 ... Handle 32 ... Lid 33 ... Positioning rib

Claims (2)

An electric cooker comprising: a main body case; a heat shielding plate housed in the main body case; a cooking container placed on the main body case; a heating means for heating the cooking container; and a temperature adjusting means. There,
An inner diameter d1 of the contents storage part of the cooking container is larger than an outer diameter d2 of the heat shield plate,
Horizontal distance T between the outer diameter d2 and the inside of the main body case of the heat shield plate, the size comb than the radius difference t between the outer diameter d2 of the cooking vessel contents storage unit the heat shield plate and the inner diameter d1 of the An electric cooker characterized in that a heat flow in a main body case is improved and heat is reused for the cooking container . An electric cooker comprising: a main body case; a heat shielding plate housed in the main body case; a cooking container placed on the main body case; a heating means for heating the cooking container; and a temperature adjusting means. There,
An inner diameter d1 of the contents storage part of the cooking container is larger than an outer diameter d2 of the heat shield plate,
The horizontal distance T between the outer diameter d2 of the heat shield plate and the inside of the main body case is larger than the radius difference t between the inner diameter d1 of the contents storage part of the cooking container and the outer diameter d2 of the heat shield plate,
The main body case includes an inner case and an outer case, and an outer diameter d2 of the heat shield plate is smaller than a diameter d3 of an opening at the bottom of the inner case.

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