JP6102508B2 - Home bakery - Google Patents

Description

  The invention of this application relates to the configuration of a home bakery that employs an electromagnetic induction heating means as the pan case heating means.

  Nowadays, baking bread at home has become commonplace, and home bakery (bakers) are provided by manufacturers.

  Such a home bakery generally has an outer case which is a main body case, a baking chamber provided in the outer case, a bread case which is removably stored in the baking chamber, and an inner bottom portion of the bread case. Pan blade to be mounted, one annular structure electric heater for heating the pan case disposed on the outer periphery of the pan case, and pan blade rotation drive provided on the lower side (baking chamber bottom) of the pan case Means and a lid body that can be opened and closed above the opening of the outer case (above the firing chamber) (see, for example, Patent Documents 1 to 3).

  And after putting water, strong powder, sugar, salt, fats and oils, etc. in the bread case, and further adding yeast, after pressing the start switch, the bread blade is rotated to knead the bread dough "kneading process" In the same kneading process, the "fermentation process" for fermenting the bread dough in which the protein in the above-mentioned strong flour is glutenated, the "baking process" for baking the dough that has been fermented in the fermentation process, and so on, Is baked. Further, in the middle of the “kneading process” or “baking process”, a desired ingredient may be input as necessary.

  As described above, most home bakery products that have been provided so far employ one electric heater having an annular structure as a pan case heating means.

  However, the pan case has a considerable height in the vertical direction. For this reason, the bread dough in the bread case has a problem that it is easy to burn in the portion close to the electric heater and is insufficiently heated in the far portion, and it is difficult to uniformly bake the whole bread that swells upward as the baking progresses. .

  For this reason, for example, the pan case installed in the baking chamber is formed of a metal container capable of electromagnetic induction heating, and an electromagnetic induction coil is provided over a wide range on the outer peripheral side of the pan case. There has also been proposed one in which an eddy current is caused to flow in the pan case itself by exciting the induction coil, and self heating is performed so that uniform heating can be performed over the entire pan case (for example, Patent Document 4). reference).

JP 2009-60932 A JP 2010-35909 A JP 2010-94417 A JP-A-7-88047

  By the way, in the case of a home bakery, bread to be baked is usually bread, and the corresponding bread case has a bottomed cylindrical box structure whose cross-sectional shape is generally rectangular when cut in the horizontal direction. The upper part is open.

  In the “baking process”, as described above, the upper part of the bread bulges upward from the upper part of the bread case as the baking progresses. And it is preferable to give this bulging part a dark brown color.

  However, since the amount of heat generated by the pan case itself does not act on the portion that bulges upward from the pan case, the amount of heating is insufficient unless the portion is heated by some other method. There is a problem that not only can not be colored, but also cannot be baked enough.

  In the case of the conventional examples of Patent Documents 1 to 3, such a problem is remarkable. In the configuration of Patent Documents 1 to 3, the pan case itself is deepened and the inner diameter on the upper part side is made larger than the inner diameter on the lower part side, thereby allowing the bread case to expand as much as possible. However, if this is the case, the shape of the bread and the swelling will be limited, and it is impossible to heat the top surface of the bread.

  In addition, high-temperature air below the baking chamber can be guided upward by convection so that the space above the bread case can be maintained at a high temperature to some extent, but at that temperature, the surface of the bread is baked. It ’s difficult.

  On the other hand, in the configuration of Patent Document 4, in order to solve the same problem, the same diameter that closes the upper end side opening of the pan case when the lid is closed with the same material as the pan case in the upper body of the bakery body. The lid case is provided, and an electromagnetic induction coil is also provided on the outer periphery of the lid case to heat the lid case.

  According to such a configuration, the pan case itself is a sealed case that is entirely heated except for some degassing holes, so the heating efficiency is extremely high and the upper part of the pan is reliably baked. Can do.

  However, in the case of such a configuration, the configuration on the lid side becomes very complicated, and the shape of the bulge bulging out cannot be formed at the top of the pan due to the restriction of the pan shape.

  The invention of this application was made to solve such a problem, and a second heating means for heating the space portion above the pan case on the upper outer periphery of the protective frame surrounding the space portion above the pan case. And providing a home bakery that uniformly heats the outer peripheral surface of the swelled bread without being restricted by the shape of the space above the bread case by the second heating means. It is.

In order to achieve the above object, the invention of this application includes the following problem solving means.
(1) Invention of Claim 1 The problem solving means of the present invention includes an outer case, a protective frame having a substantially rectangular cross section supported in the outer case, and an electromagnetic having a substantially rectangular cross section provided on the outer periphery of the protective frame. an induction coil, is housed inside the protective frame, and a said cross-section substantially rectangular induced to heat generation by the electromagnetic induction coil pan case, the protective corresponding to the side wall portion of the bread casing housed in the protective frame A first heating means comprising the electromagnetic induction coil on the outer periphery of the frame; and a space above the pan case on the outer periphery of the protective frame corresponding to the space above the pan case housed in the protective frame. a second heating means for heating provided by the second heating means, that Do so as to uniformly heat the outer peripheral surface of the bread that bulges without being restricted by the shape in the space of the upper the bread casing Home Bakery The protective frame provided with the first and second heating means includes a first protective frame made of a lower synthetic resin that houses the pan case and an upper side that surrounds the space above the pan case. It consists of two sets of protective frames with a second protective frame made of metal, while the second heating means is an electric heater, and the electromagnetic wave is formed on the outer periphery of the side wall of the first protective frame made of the lower synthetic resin. The first heating means made of an induction coil is provided, and the second heating means made of the electric heater is provided on the outer periphery of the side wall of the second protective frame made of the upper metal .

  In this way, when the electromagnetic induction heating method is used for heating the pan case, the entire pan case can be heated uniformly, and high efficiency and uniform heating is possible, so that savory and delicious high-quality bread is baked. Can do.

  In addition, in the configuration of the present invention, in that case, the first heating means including the electromagnetic induction coil is provided on the outer periphery of the protective frame corresponding to the side wall portion of the pan case housed in the protective frame. A second heating means for heating the space above the pan case is provided on the outer periphery of the protection frame corresponding to the space above the pan case housed in the protective frame, and the second heating means The outer peripheral surface of the bread that bulges freely in the space above the bread case is heated uniformly.

  Therefore, the bread that bulges upward from the upper end of the opening of the bread case as the baking process proceeds can freely bulge upward without any shape restrictions during the bulging. And the whole outer peripheral surface of a bulging part is uniformly baked with the heat from a 2nd heating means, carrying out the same bulging.

  As a result, it is possible to bake an ideally shaped bread having an upper portion that swells plumply and has a good brown color. Further, the structure of the lid at the top of the bakery body is not complicated.

  In addition, in the case of such a configuration, unlike Patent Documents 1 to 3, the heat from the lower annular heater is guided to the upper part of the pan case using air convection, and is surrounded by a protective frame. Since it is directly baked by receiving heat from the second heating means, it is possible to achieve high heat efficiency and uniform heating over the entire circumference.

In this case, according to the present invention, the protective frame further provided with the first and second heating means includes a first protective frame made of a lower synthetic resin for housing the pan case, and an upper portion of the pan case. The second heating means is composed of an electric heater, and the first protection made of the lower side synthetic resin. First heating means made of the electromagnetic induction coil is provided on the outer periphery of the side wall portion of the frame, and second heating means made of the electric heater is provided on the outer periphery of the side wall portion of the second protective frame made of the upper metal. Yes.

According to such a configuration, a large protective frame that forms a large baking chamber having a bread case storage space and a sufficient bread bulging space above the bread case can be formed relatively easily.

Further, since the lower first protective frame can be made of synthetic resin and the upper second protective frame can be made of a different material, the lower first protective frame member can be made of an electromagnetic induction coil. It becomes possible to provide the first heating means comprising the above, the second heating means comprising the electric heater on the second protective frame member on the upper side, and the appropriate heating means having different characteristics depending on the application.

  As a result, the pan case in the baking chamber is heated uniformly and efficiently by electromagnetic induction heating of the electromagnetic induction coil, and a sufficiently wide bread bulging space above the pan case is also formed in the second metal case. It is efficiently heated by radiant heat from the electric heater through the protective frame.

Therefore, the radiant heat from the electric heater directly acts on the entire outer peripheral surface of the pan that bulges in the space above the pan case, and the radiant heat can be baked uniformly and effectively, so that effective baking Can be colored.

In this case, as in the configuration of the embodiment to be described later, the wind from the cooling fan for electrical components and the like is introduced into the protective frame, and the cooling air has a sufficient amount of heat generation, and It is also possible to recover the amount of heat generated by the eddy current radiated outwardly from the outer peripheral surface of the pan case and efficiently supply it in the form of hot air from below to above.

If it does in that way, it will also become possible to improve the heating efficiency of the said pan case upper part further greatly with the same hot air.

In this case, although the high temperature air from the lower part of the firing chamber is also used for heating the upper part, the heat from one annular heater as in Patent Documents 1 to 3 described above, and only natural convection is used. Unlike the case where the hot air is supplied, the hot air temperature is much higher and the supply efficiency is much higher.
(2) Invention of Claim 2 The problem-solving means of the present invention is the structure of the problem-solving means of the invention of Claim 1, wherein a lid is provided on the upper part of the outer case, The surface corresponding to the upper part of the protective frame is a heat reflecting surface.

  According to such a configuration, the heat from the second heating means is reflected by the heat reflecting surface inside the lid, and the upper surface portion of the bread that swells greatly above the bread case as the baking proceeds Can be baked more effectively.

  As a result, according to the invention of this application, not only the inside of the bread case but also the portion swelled above the bread case can be effectively heated, and the entire bread can be baked uniformly.

It is a top view of the home bakery which concerns on Embodiment 1 of invention of this application. FIG. 2 is a cross-sectional view of the home bakery cut along the line AA in FIG. 1 from the top to the bottom and the cut surface portion viewed in the direction of the arrow. It is sectional drawing which cut | disconnected from the upper part to the downward part in the BB line part of FIG. 1 of the home bakery, and looked at the cut surface part in the arrow direction. It is the side view seen from the main body left side which shows the installation structure of the shoulder frame corresponding to the protection frame of the same home bakery, a control board, a control board cover, a cooling fan, a rotation drive mechanism, etc. It is the side view seen from the main body left side which shows the structure of only the shoulder member and protective frame part of the home bakery. It is the disassembled perspective view seen from the main body left diagonal front upper part which shows the structure of the protection frame of the same home bakery, and each part of a protection frame. It is an enlarged perspective view which shows the structure of the ferrite core accommodated in the coil stand of the same home bakery, and a coil stand in an exploded state. It is the disassembled perspective view seen from the main body left diagonal front which shows the structure of the control board | substrate and control board cover which were arrange | positioned in the protection frame front part of the same home bakery, the heat sink on a control board, and the structure of the cooling fan corresponding to them . It is the expansion perspective view seen from the protective frame side which shows the structure of the control board cover shown in FIG. 8 of the home bakery, the structure of the cooling air introduction guide provided in the control board cover, and the structure of the cooling fan corresponding to them. It is sectional drawing which cut | disconnected in the horizontal direction in CC line part of FIG. 4 of the same home bakery, and looked at the cut surface part in the arrow direction, and is 1st protection from the air introduction port of the 1st protection frame corner part lower part It is explanatory drawing which shows the distribution | circulation state of the cooling air introduce | transduced in a frame. It is a top view in the state where the lid, operation panel nameplate, and pan case of the home bakery were removed. It is sectional drawing explaining the structure at the time of bread case accommodation with respect to the 1st protection frame of the same home bakery. It is an expanded sectional view which shows the structure of the principal part in the state of FIG. 12 of the home bakery. It is sectional drawing of the 1st operation state which shows the structure and effect | action of the ingredient charging device of the home bakery. It is sectional drawing of the 2nd operation state which shows the structure and effect | action of an ingredient charging device of the home bakery.

  Hereinafter, the configuration and operation of the home bakery according to the embodiment of the invention of this application will be described in detail.

  FIGS. 1-15 has shown the whole home bakery and the structure of each part which concern on embodiment of invention of this application.

In the home bakery of this embodiment, for example, as shown in FIGS.
As a basic component, a predetermined space is maintained between the outer case 1 having a bottomed cylindrical shape that constitutes the outer wall portion and the housing portion of the bakery body, and the outer case 1 in the outer case 1. A bakery body A composed of an inner wall of the bakery body and a bottomed cylindrical protective frame 2 that constitutes a baking chamber, and a hinge mechanism 16 on the rear end side of the upper end opening edge of the bakery body A. The rear end side is pivotally attached, and in the closed state, the upper end side opening of the bakery main body A is covered, while in the open state, the opening of the bakery main body A can be opened and closed in the vertical direction. It consists of two parts with the lid B.

  The outer case 1 is, for example, a cylindrical side wall portion 1a having a substantially square cross section extending in the vertical direction, and a substantially planar plane that forms the bottom surface portion of the outer case 1 on the bottom opening surface of the side wall portion 1a. A rectangular bottom wall portion 1b and an inner edge of the side wall portion 1a on the upper end side opening edge, the opening edge portion and the upper end side opening edge portion of the protective frame 2 are connected and integrated, and the upper end side of the bakery body It is comprised from the shoulder member 1c which forms an opening edge part. In the case of this embodiment, these side wall parts 1a, the bottom wall part 1b, and the shoulder member 1c are each comprised by the synthetic resin material as an example. In the case of this embodiment, for example, the side wall 1a and the bottom wall 1b are formed by integral molding. A pair of left and right base ends of the portable handle 13 are pivotally attached to the left and right sides of the upper end of the central portion of the outer case 1a.

  On the other hand, the protective frame 2 forming the inner wall portion and the baking chamber of the bakery main body A includes a bottomed cylindrical first protective frame (lower member) 21 formed of a synthetic resin material, and the first protective frame. And a cylindrical second protective frame (upper member) 22 made of a metal plate connected and integrated in a coaxial state on an enlarged edge portion 21d in the horizontal direction of the upper end side opening portion 21c. The cross-sectional shapes of the portions 21a and 22a and the planar shape of the bottom wall portion 21b of the first protective frame 21 are both substantially rectangular, and are located in the side wall portion 1a of the outer case 1 that is slightly longer in the front-rear direction. The bottom wall portion 1b of the outer case 1 is formed in a state where a space portion of a predetermined space is formed with the side wall portion 1a of the outer case 1 on the front side. It is supported and fixed horizontally via a rotary drive mechanism 10 which will be described later. It has been. The rotary drive mechanism 10 is securely fixed in a predetermined casing Z, and the first protective frame 21 has a plurality of legs 21g, 21g,. By being connected to the corresponding connecting part on the upper part, it is fixed after being positioned accurately.

  The height of the side wall portion of the side wall portion 21a of the first protective frame 21 and the side wall portion 22a of the second protective frame 22 is set to the bottom of the outer case 1 as shown in FIGS. In the state of being supported and fixed on the wall portion 1b, it is formed so as to be substantially the height of the side wall portion 1a of the outer case 1, and in this state, the upper end of the side wall portion 22a of the second protective frame 22 and the outside The shoulder member 1c described above is interposed between the upper end of the side wall portion 1a of the case 1, and the upper end of the side wall portion 22a of the second protective frame 22 and the upper end of the side wall portion 1a of the outer case 1 are interposed via the shoulder member 1c. The opening edge of the bakery main body A is formed by being connected and integrated over the entire circumferential direction.

  For example, as shown in FIGS. 5 and 6, the shoulder member 1 c includes a shoulder frame portion 51 a that forms an opening edge of the bakery body A, a side wall portion 22 a of the second protective frame 22, and an outer case 1. It is comprised from the side wall part 51b inserted between the side wall parts 1a, the rear end side hinge bracket 51e, and the front end side operation panel installation stand 51c. The side wall portion 51b has a front portion and a rear portion that partially extend long downward, and the extended ends 51f, 51f,... Are connected to the connecting portion on the enlarged edge portion 21d of the lower first protective frame 21. It is connected and fixed to. Further, the hinge bracket portion 51e at the rear end of the shoulder frame portion 51a has a hinge pivot support portion at the upper end portion thereof, and has a support piece for the handle 13 described above at the lower end portion. Furthermore, the front end of the shoulder frame 51a is provided with a partition wall 51d that divides an operation panel 11 side and a main body opening side, which will be described later, when assembled as shown in FIGS.

  By the way, between the upper end of the side wall portion 1a of the outer case 1 and the upper end of the side wall portion 22a of the second protective frame 22 at the front portion of the bakery main body A is widely opened more than a predetermined space in the front-rear direction and the vertical direction. Using the open space portion, for example, as shown in FIGS. 1 to 3, an operation panel installation base 51 c having a half-moon-like shape in plan view on the front end side of the shoulder member 1 c is interposed, and above the operation panel installation base 51 c. An operation panel 11 and an operation board 12 are provided so as to be positioned vertically.

  The operation panel 11 surrounds the liquid crystal display 11a at the center, and a start switch 11b and a cancel switch 11c on the right side, a menu selection switch 11d, a color switch 11e, a mix switch 11f on the left side, and a reservation switch 11g on the center side. The hour / minute switch 11h for setting the timer is provided.

  The operation setting state of each of these switches is input to a microcomputer control unit (not shown) on the operation board 12 on the lower side, and when the start switch 11b is turned on, the menu selection switch 11d correspondingly. Bread baking control of a desired menu selected and set by, for example, is started.

  Further, on the outer periphery of the side wall portion 21a of the first protective frame 21 having a substantially square cross section of the protective frame 2 (specifically, a position slightly below the substantially intermediate position in the vertical direction) A strip-like coil bobbin (synthetic resin molding member for forming a work coil) 5 having a substantially rectangular cross section extending in the whole direction and having a predetermined width in the vertical direction is provided, and the first bobbin 5 is provided via the coil bobbin 5. The work coil 6 is installed on the outer periphery of the side wall 21 a of the protective frame 21.

  The coil bobbin 5 on which the work coil 6 is formed, for example, as shown in FIG. 6, is completely separate from the first protective frame 21, for example, on the work coil 6 side shown in FIG. 7. The coil base 8 having the ferrite core 7 fitted therein is fixed to the outer peripheral surface (the center of the front, rear, left and right four side surfaces) of the side wall portion 21a of the first protective frame 21.

  That is, the coil base 8 in this embodiment is formed in a box structure that is longer in the vertical direction than the vertical width of the coil bobbin 5 and smaller in the horizontal direction as shown in FIG. While the ferrite core 7 is fitted and housed inside, the first protective frame 21 is provided, for example, at the center in the width direction of each of the front, rear, left and right side wall surface portions (plane portions), and its upper end The mounting portion 8a that protrudes on the outer side and protrudes by a predetermined width toward the outer side is greatly enlarged beyond the predetermined width toward the outer side in the horizontal direction of the upper end side opening 21c of the first protective frame 21. The coil mount mounting boss 21e provided on the lower surface side of the square-shaped enlarged edge portion 21d in the plan view is fixed to the screwing groove portion extending in the vertical direction by screwing from the lower side through the screws 14, 14,. Yes.

  The coil bobbin 5 is provided with ribs (protrusions) 5b and 5b which are located on both upper and lower ends of the work coil ticket forming surface portion 5a having a predetermined width in the vertical direction and project toward the predetermined height coil base 8 side. Engaging portions (convex portions) 8b and 8b for engaging the coil bobbin 5 by engaging with the lower sides of the ribs 5b and 5b are provided at the opposite upper and lower end portions inside the coil base 8, respectively. ing. Therefore, when the coil base 8 is screwed and fastened to the coil base mounting boss 21e on the lower surface of the enlarged edge 21d of the first protective frame 21, the engaging portions 8b and 8b of the coil base 8 are ribs of the coil bobbin 5. The coil bobbin 5 is securely engaged and fixed by engaging with the parts 5b and 5b, and the convex part on the lower end side of the upper part 8b of the engaging parts 8b and 8b is further provided with the work coil 6 The upper end of the arm is pressed and fixed.

  Thereby, the work coil (Litz wire) 6 wound uniformly over the entire width of the work coil bill forming surface portion 5a of the coil bobbin 5 is surely provided with a proper gap and positional relationship. The pan case 3 fixed to the outer peripheral surface 21a and set in the pan case storage chamber (lower baking chamber) X inside the first protective frame 21 also has a proper gap and positional relationship. It will be. As a result, uniform electromagnetic induction heating of the entire pan case 3 is possible.

  Moreover, in the same structure, when installing the work coil 6 with respect to the side wall part 21a of the 1st protection frame 21 (protection frame 2), it is a structure separate from the said 1st protection frame 21 previously. The work coil 6 is wound around the coil bobbin 5 (before being fitted to the first protective frame 21), and the coil bobbin 5 and the work coil 6 form an independent work coil unit. It is fitted from a lower side at a predetermined position below the substantially middle part of the side wall part 21a of the first protective frame 21 and is provided in a plurality in a circumferential direction extending downward from the lower surface side of the enlarged edge part 21d. Are positioned at the lower ends of the ribs 21f, 21f,... And then fixed to the outer peripheral surface of the side wall portion 21a of the first protective frame 21 by the coil base 8 and fixed in the state of being accurately positioned as described above. be able to. Therefore, the attachment is very easy.

  Reference numeral 9 denotes a belt-shaped magnetic shielding plate having a substantially square cross section made of, for example, an aluminum metal material, and has a vertical width sufficient to cover the outer circumferences of the work coil 6 and the coil bobbin 5. It is configured in an annular band. Then, on the upper edge portion 9a of the widthwise intermediate portion of each of the front, rear, left and right flat portions, a part of the upper edge portion 9a is bent inward to form the coil mount mounting boss portion 21e of the first protective frame 21. It has a flange 9b with a screw hole that is superposed and fastened together with the attachment portion 8a of the coil base 8, and is attached to the lower surface portion of the enlarged edge portion 21d of the first protective frame 21 together with the coil base 8 (four pieces). It has been.

  Thereby, the magnetic flux from the work coil 6 in the excited state is prevented from leaking to the surroundings.

  Therefore, in the case of this embodiment, the work coil 6 as electromagnetic induction heating means, the ferrite core 7 (four pieces) as magnetic flux converging means, the magnetic shielding plate 9 as magnetic shielding means from the work coil 6 and the like. The installation can be easily realized substantially only by attaching the coil base 8 (four pieces) to the first protective frame 21, so that the configuration and assembly of the electromagnetic induction heating means are very simple.

  Further, as shown in FIG. 7, the coil base 8 itself is also simply inserted and fixed to the elongated ferrite core insertion space 8c portion between the straight pair of left and right side walls from the upper side, and the ferrite 7 having a straight square bar structure is inserted and fixed. Since the ferrite core 7 can be housed and integrated, the structure of the main body is remarkably miniaturized, and the die cost is greatly reduced.

  Further, since the work coil 6 can be pressed by the lower end side convex portion of the upper side engaging portion 8b of the coil base 8, the fixed state of the work coil 6 itself is also stabilized.

  Further, in the above configuration, heat from the first protective frame 21 that becomes a certain high temperature due to heat generated by the pan case 3 is insulated by the coil bobbin 5 having a predetermined thickness and directly transmitted to the work coil 6. In addition to the prevention, a predetermined gap is formed between the coil bobbin 5 and the side wall surface of the first protective frame 21. Therefore, heat from the protective frame 2 side is not directly transmitted to the coil bobbin 5 and the work coil 6 due to the gap, and wind from the cooling fan 20 described later passes through the gap, so that the work coil 6 cooling performance is improved.

  The gap between the coil bobbin 5 and the side wall surface 21a of the first protective frame 21 is, for example, an upper part of the side wall portion 21a of the first protective frame 21, and the enlarged edge portion 21d protruding in the horizontal direction. ... A part (four faces) of a plurality of ribs 21 f, 21 f... Having a positioning function for the coil bobbin 5 extending downward from the lower surface of the coil is extended downward, and the coil bobbin 5 is fitted thereon. It is easily realized by such as.

  In addition, as described above, the work coil 6 is wound around the coil bobbin 5 separately from the first protective frame 21 (protective frame 2) to form a work coil unit independent of the first protective frame 21 (protective frame 2). When the work coil unit independent of the first protective frame 21 (protective frame 2) is finally assembled to the first protective frame 21 (protective frame 2), the first protective frame 21 that is normally assumed. The work coil unit is much smaller because there is no protective frame compared to the case of direct winding around itself.

  Therefore, for example, a parts supplier can store many work coil units in one delivery carton and deliver them to a finished product manufacturer, which can greatly improve the transportation cost and the supply efficiency of parts at the time of delivery. .

  In the case of a home bakery, as can be seen from the above description, the size of the protective frame 2 in the vertical direction is larger than that of a protective frame of an electric rice cooker having a generally dish-like structure. Therefore, if the configuration in which the work coil 6 is directly attached to the protective frame 2 itself is adopted, the number of pieces that can be stored in one delivery carton is limited, and the transportation cost is high. With the above-described configuration, such a problem can be reliably solved.

  Further, the upper part of the upper end side enlarged edge portion 21d of the first protective frame 21 having the above-described configuration is integrally connected to the first protective frame 21 in a cylindrical shape in the same manner as described above. A second protective frame 22 made of a metal plate such as stainless steel having a substantially square cross section is provided, and thereby the opening of the pan case 3 stored and set in the pan case storage chamber X in the first protective frame 21 is provided. A sufficiently large bread bulging space (upper side baking chamber) Y including the height and diameter is formed above the portion 3c, and the bread is baked on the outer periphery of the side wall portion 22a of the second protective frame 22. An electric heater (heater wire) H is provided for heating the upper part of the bread bulging upward from the opening 3c of the bread case 3 as the process proceeds.

  As a result, according to the same configuration, the pan case 3 stored and set in the pan case storage chamber X in the first protective frame 21 is heated by electromagnetic induction heating of the work coil 6 serving as the electromagnetic induction heating means. The whole is uniformly and efficiently heated, and a sufficiently wide bread bulging space Y above the pan case 3 is efficiently radiated by the radiant heat from the electric heater H through the metal second protective frame 22. It becomes heated.

  Therefore, the radiant heat from the electric heater H directly acts on the entire outer peripheral surface of the pan P (see the phantom line in FIG. 3) that bulges in the bread bulging space Y portion above the pan case 3, and the radiated heat causes A uniform and effective baking can be achieved, and an effective baking color can be given.

  In this case, as will be described later, the wind from the cooling fan 20 for electrical components etc. is introduced into the first protective frame 21, and the cooling air has a sufficient amount of heat generation, In addition, the amount of heat generated by the eddy current radiated outward from the outer peripheral surface of the pan case 3 can be recovered and efficiently supplied in the form of hot air from below to above.

  If it does in that way, it will also become possible to improve the heating efficiency of the said pan case 3 upper part further greatly with the same hot air.

  In this case, although the high-temperature air from the lower side of the firing chamber is also used for heating the upper part, the heat from one annular heater as described in Patent Documents 1 to 3 is simply natural. Unlike the case of supplying upward only by convection, since the temperature of the hot air is much higher, its heating efficiency is also much higher.

  In this case, the height of the pan case 3 is configured such that the opening 3c portion is positioned slightly higher than the enlarged edge portion 21d of the first protective frame 21.

  Incidentally, a temperature fuse having a predetermined structure has a predetermined temperature with pressing elasticity at the lower surface side corner portion of the horizontally extending enlarged edge portion 21d of the upper end side opening portion 21c of the first protective frame 21. It is attached in a state of being in pressure contact with the lower surface side corner portion using a fuse attachment member (not shown).

  In addition, a cylindrical opening (concave groove portion) 37 protruding downward is provided at the bottom center of the first protective frame 21, and the opening 37 is a bottom wall portion of the outer case 1. It faces the rotating shaft 10e portion of the final stage of the rotating mechanism drive 10 provided on 1b. A rotary engagement member 38 having a S-shape in plan view is attached to the upper end side of the rotary shaft 10e, and the pan pieces at the bottom of the pan case 3 are attached to the engagement pieces 38a, 38a at both ends of the rotary engagement member 38. The engaging portions 36a in the orthogonal direction on the lower end side of the blade attachment shaft 36 are engaged with each other so that the rotational force from the rotation drive mechanism 10 side is transmitted to the pan blade attachment shaft 36.

  The bread blade attachment shaft 36 of the bread case 3 is located at the center of the bottom 3b of the bread case 3 and passes through the bearing portion 35a and the seal portion 35b in the vertical direction. (Omitted) is attached in a detachable manner, while the engaging member 36a is attached to the lower end side in an orthogonal state. Further, on the back side of the bottom of the pan case 3, a cylindrical portion (connecting sleeve) 3 h that fits inside the cylindrical opening (concave groove) 37 at the bottom of the first protective frame 21 protrudes downward. The pan case 3 is accommodated and set by fitting the cylindrical portion 3 h into the cylindrical opening (receiving groove) 37 of the first protective frame 21.

  In this case, on the outer peripheral surface of the cylindrical portion 3h of the pan case 3, for example, as shown in FIG. 14 and FIG. 15, four vertically long ridges 39a, 39a,. On the inner peripheral surface of the first protective frame 21 side cylindrical opening 37, for example, as shown in FIG. 11, the ridges of the pan case 3 side cylindrical portion 3 h are similarly spaced at 90 ° intervals in the circumferential direction. 39a, 39a,... Are fitted with four vertically elongated concave portions 37a, 37a,... That are engaged with each other in the pan case storage chamber X of the first protective frame 21. The lower side of the bread case 3 that is stored and set is securely fixed in the direction of bread blade rotation.

  On the other hand, the opening portion 21c of the first protective frame 21 is positioned slightly below the rounded surface portion, for example, a rubber protective frame fixing member 80 protruding inward at a predetermined height, 80... Are provided. The protective frame fixing members 80, 80,... Are portions closer to the left side than the central portion of the surface viewed from the inside of the front, rear, left, and right side walls of the first protective frame 21 opening having a substantially square cross section (when rotating) 11 is located at the position where the largest pressing force in the abutting direction acts during rotation, and thereby, for example, a pan blade (for example, rotating rightward in the plan view state of FIG. 11) Effectively receives the rotational force in the right direction of the pan case 3 due to the rotational force of the pan blade mounting shaft 36), and fixes the pan case 3 body in an accurate storage position in a more reliable form and without vibration. It is supposed to be.

  Therefore, this ensures that the pan case 3 is fixed in the horizontal direction at both the upper and lower ends. As a result, the electromagnetic induction gap between the work coil 6 and the pan case 3 is always maintained at an appropriate size. As a result, the entire pan case 3 can always be uniformly heated by electromagnetic induction, and a more reliable electromagnetic induction heating type home bakery can be provided.

  On the other hand, the pan case 3 is securely fixed in the horizontal direction in this way, but when the other storage is set, the pan case 3 needs to be securely set from above to below and vibrates in the vertical direction. There is no need to be surely fixed.

  Therefore, in this embodiment, for example, as shown in FIGS. 11 to 13, on the lower side of the mounting edge portions 3 g and 3 g (cover portions 3 f and 3 f) of the handle 3 d in the opening 3 c of the pan case 3, A first engagement member 70 having a convex plate spring 70a having a cross-sectional shape is provided, and the convex plate spring 70a is provided at the upper end of the corresponding opening 21c of the first protective frame 21. A second engagement member 40 having a concave plate spring 40a having a cross-sectionally-shaped cross-section (with its square-shaped protrusion) elastically engaged, and the first, The engagement of the second engaging members 70 and 40 with each other as shown in FIGS. 12 and 13 ensures that the pan case 3 is housed and set in the first protective frame 21 and the housing set. In this state, the movement in the vertical direction is surely restricted and the It has to be.

  In this case, the first engagement member 70 is fixed to the lower side of the handle mounting edge portions 3g, 3g of the pan case 3, and a leaf spring case 71 having a convex leaf spring 70a inside is provided, Located in the leaf spring case 71, the upper end side thereof is fastened and fixed to the lower surface side of the handle mounting edge portions 3g and 3g of the pan case 3 together with the upper wall portion of the leaf spring case 71 by a fixing member (screw screw) 72, From the opening 71a on the side surface side of the leaf spring case 71, it is constituted by a convex leaf spring 70a in which a protruding convex portion (character shape) is projected outward. The second engagement member 40 includes a plate spring support member 21h formed at the upper end of the opening 21c of the first protective frame 21, and a concave engagement supported and fixed to the plate spring support member 21h portion. It is composed of a concave leaf spring 40a having a joint (character shape).

  According to such a configuration, when the pan case 3 is inserted into the pan case storage chamber X in the first protective frame 21 and stored from above, the tubular portion 3h on the lower end side of the pan case 3 and the When the cylindrical opening 37 at the bottom of one protective frame 21 fits properly and is stored and set at an appropriate circumferential position and an appropriate vertical height, the convex shape of the first engaging member 70 The plate spring 70a portion is finally engaged with the concave plate spring 40a portion of the second engagement member 40 while being elastically deformed into the plate spring case 71, and when it is securely engaged, “click” is performed. The sound is stored.

  Therefore, it is determined that the storage case is properly and reliably stored by the generation of the storage sound. In addition, the vertical position in the storage set state is fixed.

  As a result, unlike the conventional home bakery, it is not necessary to adopt a complicated storage method in which the pan case is inserted with a predetermined angle and twisted in the opposite direction in the circumferential direction, and then returned to the predetermined angle after insertion to engage the helicoid. .

  Furthermore, in the case of this embodiment, one corner of the four corners of the lower part of the first protective frame 21 (the front left corner as viewed from the first protective frame 21 itself, in other words, the right corner). In this case, cooling air from a cooling fan 20 described later is introduced into the first protective frame 21 in a diagonal direction (see arrows in FIG. 10) over a predetermined width from the front side to the left side. For this purpose, an air inlet 15 having a grill structure is formed.

  And in the 1st protective frame 21 comprised in this way, as mentioned above, the bread case 3 provided with the bread blade attachment shaft 36 to which the bread blade is attached to the bottom is stored and set in a removable state. Yes. In this storage set state, the engagement member 36a in the orthogonal direction provided below the pan blade attachment shaft 36 and the S-shaped rotation engagement member 38 fixed to the final stage rotation shaft 10e will be described later. The rotational driving force from the rotating driving mechanism 10 side is transmitted, whereby the bread blades rotate, and the work of kneading the bread dough in the bread case 3 is performed. On the inner peripheral surface of the bread case 3, convex portions 3e and 3e are provided for applying an engaging force to the bread dough in the kneading process.

  The rotational drive mechanism 10 that transmits the rotational force to the pan blade mounting shaft 36 is configured as follows, for example. That is, for example, as shown in FIGS. 3 and 4, the rotation of the output shaft 10a of the motor M that is a drive source is transferred to the above-described final-stage rotation shaft 10e via the driving pulley 10b, the belt 10c, and the driven pulley 10d. Then, the S-shaped rotation engagement member 38 is rotated by the rotation shaft 10e at the final stage.

  On the other hand, in FIG.2, FIG.4, FIG.8-10, the code | symbol 25 is a control board which performs the control program which controls the bread manufacturing process in the said home bakery, and the front side wall part 1a of the outer case 1 mentioned above and Attached to the front side (outer case side) of the control board cover 27 that is located in the space between the front side of the protective frame 2 and is erected in the vertical direction adjacent to and parallel to the front side of the protective frame 2 It has been. Heat generating components such as an IGBT (power transistor) 28 that drives the work coil 6 and a heat sink 29 that dissipates heat from the IGBT 28 are provided on the outer case 1 side component mounting surface of the control board 25. The control board 25 and the control board cover 27 are on the front surface side of the protective frame 2 having a substantially square cross section, and one side end (the left end in the figure) has a substantially square cross section. Are provided in a positional relationship so as to be the left side surface position.

  The air inlet 15 is formed in the corner portion between the front and left side portions of the control board 25 and the control board cover 27 and the lower part of the protective frame 2 (particularly, the lower part of the lower first protective frame 21). Corresponding to each of them, for example, in a positional relationship as shown in FIG. 2, FIG. 3, FIG. 8 to FIG. The cooling fan 20 having a diameter capable of being installed is installed in parallel in a state where the center of the blowing shaft is directed to the space portion between the control board cover 27 and the front surface of the protective frame 2. Then, for example, the outside air sucked in from the outside air inlet provided in the portion corresponding to the fan suction shaft of the left side wall portion of the outer case 1 is blown forward by the fan impeller 20b and blown to the corresponding required portion. ing.

  On the other hand, on the fan end portion side of the control board cover 27, the cooling air blown from the air blowing port 20a of the cooling fan 20 located on the protective frame 2 side is changed in its wind direction and the work coil described above. The first cooling air guide 31 supplied to the 6 side and the second cooling air guide 32 supplied to the air introduction port 15 side of the second protective frame 21 described above are provided separately in the vertical direction.

  As a result, the cooling air blown from the air blower outlet 20a of the cooling fan 20 has the left side region wind flowing in the control board 25, the IGBT 28 on the control board 25, the heat sink 29, etc., and the central left side region. On the back side of the control board 25, the wind in the central area and the wide area on the right side from the central area is on the upper side, the front side of the work coil 6 is on the right side, the left side is on the back side, and the lower side. Then, the first protective frame 21 is efficiently supplied to the air introduction port 15 portion to the pan case storage chamber X in the first protective frame 21 at the corner portion between the front surface side and the left side surface side. A single cooling fan 20 can supply a sufficient amount of cooling air to each of the above parts.

  In the case of a home bakery such as this embodiment, unlike the electric rice cooker, in the “kneading process” in which bread dough is put into the bread case 3 and kneaded, the bread case 3 is cooled in order to achieve good glutenization of the protein. (The optimum temperature effective for glutenation is 10 to 20 ° C.), and in the “baking process”, the heat in the induction heated pan case 3 does not escape to the outside. The entire bread case 3 is wrapped with air introduced into the heat insulating material as heat insulating material, and the temperature of the bread case 3 is increased by absorbing the radiant heat from the outer periphery of the bread case 3 to increase the temperature (hot air). 3 By uniformly heating the upper bread swelling space Y, the bread dough portion bulging upward from the “baking process last” bread case 3 as well as the inside of the bread case 3 “during the baking process” Also sufficiently heated, and valid grilled add color. As a result, thermal efficiency is improved and an energy saving effect is also obtained.

  Further, the space between the protective frame 2 is insulated by the cooling air, and the temperature rise of the protective frame 2 itself can be reduced, so that the durability of the work coil 6 is also improved.

  Next, as described above, the lid B is formed in the opening of the bakery main body A in which the side wall 1a of the outer case 1 and the second protective frame 22 are connected and integrated through the shoulder member 1c as described above. Is pivotally mounted on the rear end side via a hinge mechanism 16 so as to be opened and closed in the vertical direction.

  As shown in FIGS. 2, 3, 14, and 15, the lid B is made of a synthetic resin outer cover 18 that forms an upper exterior surface and a synthetic resin that forms an inner ceiling surface thereof. It consists of an inner cover 19 and its end portions 18a, 19a, 18b, 19b are joined and integrated with each other, and a heat insulating space 15 having a predetermined cross-sectional area is formed between them. The rear end portion of the outer cover 18 is provided with, for example, a steam discharge port S, and steam (gas) in the bread bulging space Y, which is a baking chamber, is appropriately passed through a steam passage 18c recessed inward. It is supposed to be discharged.

  Further, on the lower surface of the inner cover 19, for example, a metal heat reflecting surface 19 c that reflects radiant heat from the electric heater H described above is provided. As a result, the upward radiant heat from the electric heater H radiated to the bread bulging space Y through the second protective frame 22 made of the metal plate is effectively lower side by the heat reflecting surface 19c. As described above, it effectively acts on the upper surface of the bread that bulges upward from the opening 3c of the bread case 3 as described above. As a result, baking of the bread bulging portion is also improved, and an appropriate baking color is formed.

  Furthermore, on the inner side of the heat reflecting surface 19c corresponding to the upper side of the opening 3c of the pan case 3 (at the substantially central position on the back side), for example, on the lower side (opening 3c side of the pan case 3) in two stages. An ingredient feeding device 60 having an ingredient storage case 61 that can be opened is provided in a detachable state.

  The material storage case 61 includes a bottom plate (cover plate) 62 that arcs downwardly on the lower surface side of the case body, and the bottom plate 62 is generally moved downward from a horizontal storage case closed state as necessary. By rotating approximately 90 ° in the vertical first case open state (FIG. 14), thereby opening the bottom of the case main body, the ingredients stored in the case main body are moved into the lower pan case 3. Then, after a predetermined time, it is further rotated to the rear position (FIG. 15) of the opening 3c of the rear pan case 3 and stopped.

  The first and second two-stage opening operation (arc turning operation) downward of the bottom plate 62 is, for example, a bottom plate opening button 63 for engagement state control provided near the bottom plate support shaft on one end side of the case body. Is controlled by ON / OFF of a plunger rod of an electromagnetic plunger (not shown) installed at a position to oppose.

  When the ingredients are put into the bread case 3 using the ingredient throwing device 60 provided with the bottom plate 62 that does not return to the original closed state once opened downward as described above, Considering the amount of bread bulging upward of the bread case 3 according to the subsequent baking of the bread, as described above, the rear plate 62 avoids the position above the opening 3c of the bread case 3 (shown in FIG. 15). It must be stopped in a state where the arc is largely rotated to the second stage (rotation position).

  However, when the ingredients are contained in the case main body (the ingredients are on the bottom plate 62), the arc is suddenly turned to the maximum turning position behind the opening 3c of the bread case 3. As a result, there is a problem that all the ingredients in the case main body are not dropped into the bread case 3 and drown out of the bread case 3 with momentum.

  Therefore, in this embodiment, as described above, once the arc is rotated to the position above the opening 3c of the pan case 3 and then stopped (the state shown in FIG. 14), after that, a predetermined time is set in the case body 61. After waiting for the ingredients to be put into the bread case 3, it is finally turned to the maximum open position (FIG. 15) behind the opening 3 c of the bread case 3 to stop.

  According to such a configuration, it is possible to reliably insert the ingredients into the bread case 3 while avoiding interference with the bottom plate 62 when the bread bulges upward in response to the baking. The automatic material input device 60 can be installed while making the height dimension from the upper part of the protective frame 2 and the pan case 3 to the lid B as compact as possible, and as a result, Bread with good appearance can be baked without damage to the bulge.

  A is a bakery body, B is a lid, 1 is an outer case, 1a is a cylindrical side wall, 1b is a bottom wall, 1c is a shoulder member, 2 is a protective frame, 3 is a pan case, 5 is a coil bobbin, Work coil, 7 ferrite core, 8 coil base, 10 rotational drive mechanism, 10a motor output shaft, 10b drive pulley, 10c belt, 10d driven pulley, 10e final rotary shaft, 11 Is an operation panel, 16 is a hinge mechanism, 18 is an outer cover, 19 is an inner cover, 20 is a cooling fan, 21 is a first protective frame, 22 is a second protective frame, 36 is a pan blade mounting shaft, and 60 is a tool. A material charging device, 61 is an ingredient storage case, 62 is a bottom plate, H is an electric heater, and S is a steam port.

Claims (2)

An outer case, a protective frame having a substantially square cross section supported in the outer case, an electromagnetic induction coil having a substantially square cross section provided on the outer periphery of the protective frame, and the electromagnetic induction housed inside the protective frame. and a cross section rectangular pan case induced to heat generation by the coil, the first heating means having the aforementioned electromagnetic induction coil on the outer periphery of the protective frame corresponding to the side wall of the pan case housed in the protective frame And a second heating means for heating the space above the pan case on the outer periphery of the protection frame corresponding to the space above the pan case housed in the protection frame, and the second heating means Accordingly, a home bakery ing in manner to uniformly heat the outer peripheral surface of the bread that bulges without being restricted by the shape in the space of the upper the bread casing, provided with the first and second heating means The Two protective frames, each of which includes a first protective frame made of a lower synthetic resin for housing the pan case and a second protective frame made of an upper metal surrounding the space above the pan case. On the other hand, the second heating means comprises an electric heater, and the first heating means comprising the electromagnetic induction coil on the outer periphery of the side wall portion of the first protective frame made of the lower side synthetic resin is also provided on the upper side. A home bakery characterized in that second heating means comprising the electric heater is provided on the outer periphery of the side wall of the second protective frame made of metal . The home bakery according to claim 1, wherein a lid is provided on an upper portion of the outer case, and a surface corresponding to the upper portion of the protective frame inside the lid is a heat reflecting surface.

Images