KR20160092009A - Electric baking device - Google Patents

Abstract

The invention relates to an electric baking apparatus having a housing (10) comprising a lower member (12) and an upper member (13) and one or more heating members (18, 19) disposed in the lower member and / Wherein the lower member 12 and the upper member 13 are pivotally connected to each other by a joint 14 and in a closed state one or more removable baking members 16 and 16 ' Chamber 15, wherein the baking device is characterized in that the removable baking members 16, 16 'are at least partially formed of silicone rubber.

Description

[0001] ELECTRIC BAKING DEVICE [0002]

The present invention relates to an electric baking apparatus having a housing including an upper member and a lower member, and at least one heating member disposed in the upper member and / or the lower member, wherein the lower member and the upper member are rotated To form a bake chamber in which one or more removable baking members are disposed in the closed state.

Such a type of baking apparatus is widely used in the household appliance field. In general, a mobile tabletop apparatus used for a sandwich toaster, a muffin maker, a waffle maker, and the like is known according to its constitution. These electrical baking devices are known to comprise permanently integrated baking members or detachable and replaceable baking members. In the latter case, the electric baking apparatus can be used with a baking member for making sandwich, for example, or a baking member for manufacturing another waffle, for different purposes.

Electric baking apparatuses of the above-described type known in the prior art usually have baking members or bake plates made of aluminum because of the required heat distribution. However, such a bake plate has a relatively high manufacturing cost. Also, although the variety of mechanisms can be reduced to some extent by means of interchangeable bake plates, such interchangeable aluminum bake plates have so far only been available in flat form.

US 2006/0272511 A1 and US 2013/0112086 A1 disclose an electric cooking appliance with a removable silicone frame. In operation, the silicon frame is fixedly connected to the upper and lower members of the cooking apparatus, and the silicon frame can be separated only when the power is turned off and the risk of heat loss is eliminated.

The contact grill device known from DD 251702 A1 has a height-adjustable joint device, so that the distance between the upper and lower members of the contact-type grill device can be changed.

Similarly, from International Patent Application WO 2008/043127 A1, there is known a grill apparatus in which the distance between the upper member and the lower member is variable. This grill apparatus is characterized in that when the gap between the upper member and the lower member becomes larger, And has an oven ring that reduces heat loss by surrounding it.

It is a technical object of the present invention to provide an electric baking apparatus that can be manufactured more economically and has a wider variety of replaceable baking members.

The above problem is solved by the electric baking apparatus according to claim 1 of the present invention. Preferred improvements of the electric baking apparatus are subject to dependent claims.

Accordingly, the present invention relates to an electric baking apparatus of the aforementioned type, characterized in that the removable baking member is at least partially formed of silicone rubber. The baking members of such silicone rubber materials can be manufactured in large quantities and in a wide variety of forms, advantageously in terms of cost.

Further, the electric baking apparatus according to the present invention having a detachable baking member made of silicone rubber has a relatively low thermal conductivity, and therefore, there is no risk of burning during handling, especially during replacement of the baking members after the initial manufacturing process There are advantages. Of course, it is not necessary to provide a removable baking member made entirely of silicone rubber in the electric baking apparatus according to the present invention.

Preferably, the removable baking member can be freely disposed in the baking chamber formed between the upper member and the lower member. Being freely deployable in this regard means that the bake member is less than the inner dimension of the lower member of the housing so that the bake member is preferably fit within the complementary shape of the lower member, Quot; means that it is simply put on a flat floor and held movably within a predetermined range within the lower member. As a result, on the one hand, the radiant heat and the convection heat from the heating member of the lower housing member can reach the upper region of the heating chamber through the sides of the baking member, so that the electric baking apparatus according to the present invention Rather it acts like a smaller tabletop oven. In addition, the spacing existing between the outer periphery of the bake element and the inner wall of the housing lower element may be such that at least the outer periphery of the bake element, such as preferably provided in accordance with the present invention, , It makes it possible to safely remove the baking frame.

Preferably, the bake chamber has an internal dimension of about 270 mm x 180 mm. In this case, the typical maximum internal dimension of the baking mold which can be freely placed with a predetermined clearance in the baking chamber is, for example, 255 mm x 165 mm.

In one preferred embodiment, the baking member at least partially formed of silicone rubber has a baking plate or baking frame.

Preferably, the joint is designed such that the distance between the upper member and the lower member of the housing of the electric baking apparatus is variable. This makes it possible, for the first time, to use a baking plate or a baking mold with apparently different heights / depths in the same electric baking apparatus. For example, some baking plates / baking molds may be formed relatively flat for making waffles, and another baking molds are much deeper, e.g., to accommodate a dough for making muffins.

The height adjustment can be performed, for example, using a joint with an oblong hole. A pin having a flat circular profile, for example, connected to the upper member, can be guided in the slot. The dimension of the slot may be selected such that the pin is non-rotatably guided in the middle region of the slot. The slot has two relatively larger extensions at its opposite ends, in which the pin can rotate. With the corresponding dimensional design, it is ensured that displacement and height adjustment between the lower member and the upper member becomes possible only in a specific state, for example, only when the upper member is open. Preferably, the height adjuster permits a variation in spacing between the top and bottom members within a range of about 3-5 cm, so that in the above example, starting at the original baking chamber height of 70 mm and reaching the baking chamber height of 120 mm .

When the housing is closed, the upper member is superposed on the lower member. Alternatively, the upper member and the lower member may be interlocked in a closed state.

When the gap between the upper member and the lower member is variable, particularly when the gap is relatively large, heat can leak through the gap between the upper member and the lower member, so that the baking process becomes longer and energy consumption increases There are disadvantages. In order to avoid this disadvantage, the upper member or the lower member of the electric baking apparatus according to the present invention, particularly preferably the lower member preferably has one sidewall, which is pulled over the upper surface of the first heating member Thereby forming a space for accommodating the detachable baking member. Thereby, baking members of different sizes can be used.

In a modification of the baking apparatus according to the present invention having the fixed side wall pulled up, the upper member is engaged and coupled into the lower member in the closed state of the housing, thereby forming a well-sealed baking chamber without unnecessary heat loss. Alternatively, the side wall of the lower member may be formed as an extension ring moving perpendicular to the base of the lower member. The extension ring is connected to the joint or hinge in such a way that the extension ring is guided upwardly together when the height is adjusted. Thereby ensuring a sealed bake chamber with a constant volume regardless of the spacing between the upper and lower members.

Alternatively, in the height adjustable baking apparatus according to the present invention, a separate intermediate ring may be provided which may be inserted between the upper member and the lower member, thereby forming a side wall of the baking chamber. Modifications according to the invention in which intermediate rings are provided can be made more economically than extension rings connected to the hinges, since they do not require complicated mechanisms.

The heating members of the electric baking apparatus according to the present invention can be arranged, for example, on the lower member, on the upper member, or on both the lower member and the upper member. Preferably, at least the first heating element is disposed on the bottom of the lower member of the housing. This heating member may be, for example, a known resistance heating coil.

The baking member disposed in the lower member of the housing may be disposed apart from the first heating member, or may be placed on the heating member, particularly the thermally conductive bottom of the lower member. The baking member raised above can be particularly advantageous when it is necessary to heat / bake stronger certain areas of the food to be cooked. Particularly preferably, the at least one removable baking member comprises a baking mold having a bottom member formed of a material having at least thermally conductive properties, in particular, a metal. For this, the baking mold may have, for example, a recessed portion, and the bottom of the recessed portion is formed of a single metal plate. This metal plate allows the heat to be transmitted to a certain area of the food to be cooked much better because the thermal conductivity of the metal plate is higher than the thermal conductivity of the surrounding silicone rubber.

According to one variant, the baking frame of the baking member is formed entirely of a thermally conductive material, in particular of metal, and only the edge regions thereof are formed of silicone rubber. The edge region formed by the silicone rubber still allows safe handling of residual or hot baking members. Preferably, the edge region is formed of a silicon ring surrounding the baking die.

According to one highly preferred embodiment, the baking member is composed of two half shells, namely a lower half shell and an upper half shell, and these half shells can be superimposed on each other to form one closed baking member . In this case, it is preferred that each half shell has one silicon ring, with the silicon ring of the lower half shell being complementary to the silicone ring of the upper half shell, so that if the two half shells are stacked together, . For example, the upper silicon ring may be flat formed while the lower half shell is formed in an L-shape to at least partially wrap the flat silicon ring of the upper half shell.

Preferably, the second heating member is disposed on the bottom surface of the cover of the housing upper member, so that the bake chamber can be heated very effectively from the top and the bottom.

Preferably, the resistance heating member is molded or mechanically fitted into the heating plate. In this case, the heating plate can be planar and can be used substantially as a contact heat source or a convection heat source, or as the heating plate is made porous, the resistance heating members can effectively emit radiant heat through the holes into the food to be cooked.

In the following, the present invention will be described in more detail with reference to the embodiments shown in the accompanying drawings.

1 is a schematic cross-sectional view of one preferred embodiment of an electric baking apparatus according to the present invention.
Fig. 2 is a view showing a modified example of a detachable baking member of a silicone rubber material.
3 is a schematic view of a joint having a height adjusting function of the baking apparatus of FIG.
4 is a schematic perspective view of yet another preferred embodiment of an electric baking apparatus according to the present invention.
5 is the baking member shown in Fig.
6 is a view showing a state where another baking member is mounted on the baking member shown in Fig.
7 is the baking member shown in Fig.
FIG. 8 is a view showing a separate intermediate ring for extending the baking chamber of the baking apparatus shown in FIGS. 4 and 6. FIG.
FIG. 9 is a view showing a state in which the intermediate ring is installed in the baking apparatus of FIGS. 4 and 6. FIG.
10 is a view showing a state in which another modification of the baking member is provided in the baking apparatus of FIG.
11 is the baking member of Fig.
Fig. 12 shows another modification of the baking member.
13 is a cross-sectional view of the baking member of Fig.

One preferred embodiment of the electric baking apparatus according to the present invention, denoted generally by reference numeral "10 " in Fig. 1, can be seen. The baking apparatus 10 comprises a housing 11 having a lower member 12 and an upper member 13 wherein the lower member 12 and the upper member 13 are connected by a height adjustable joint 14 And are pivotally connected to each other. Fig. 1 shows a baking apparatus in a closed state. When the upper member and the lower member are overlapped with each other, a baking chamber 15 in which a removable baking member 16 is disposed is formed. The baking member 16 is formed of silicone rubber and has a plurality of recesses 17 that can be filled, for example, with dough. The baking apparatus 10 has one heating member 18 at the bottom of the lower member 12 and one heating member 19 at the bottom of the cover of the upper member 13 as a heating source.

FIG. 2 shows a perspective view of a variant 16 'of the baking member 16 of FIG. 1 is formed as a muffin baking frame having, for example, deep recesses 17, while the baking member 16 'of FIG. 2 has a shallow recess 17' suitable for baking waffles or biscuits, .

A metal plate 20 is provided in the bottom region of the recesses 17 of the baking member 16 of Fig. 1 and is placed in direct thermal contact with the heating member 18 with the metal plate mounted, The area under the dough filled in the cavity 17 can be more strongly baked.

To enable the use of different depth of baking molds, e.g., relatively deep baking member 16 of FIG. 1 and relatively shallow baking member 16 'of FIG. 2, in the same apparatus, 10 has a height-adjustable hinge 14, which is also described in detail in connection with Fig. The upper member 13 is connected to the rotary shaft 21, and this rotary shaft is guided in the elongated hole 22. The rotary shaft 21 can not rotate in the middle region 23 of the elongated hole 22 because the rotary shaft 21 is formed in a flat circular shape. At the ends 24, 25 of the slot 22, the cross section of the slot is enlarged so that the rotating shaft 21 can rotate there. On the other hand, on the other hand, when the upper member 13 is opened, the height can not be adjusted in the closed state, and adjustment can be performed between the lowest position and the highest position of the upper member 13 with respect to the lower member 12.

1, the lower member 12 has an extension ring 26 connected to the upper member 13 and inserted into the inner surface of the lower member 12. The upper ring 13 and the lower ring 13 are connected to each other by an extension ring 26. When the gap between the upper and lower members is expanded, .

FIG. 4 shows a modification of the electric baking apparatus according to the present invention, indicated generally by the reference numeral "110 ". The baking apparatus 110 also includes a housing 111 having a lower member 112 and an upper member 113. The lower member 112 and the upper member 113 are provided with a height adjustable joint 114, Which are pivotally connected to each other. Fig. 4 shows a state in which the baking apparatus is opened. In the lower member, a baking member 116 formed as a cake mold in the present embodiment is inserted. The edge region 127 of the baking member 116 is formed of silicone rubber while the baking mold 128 itself may be formed of silicone rubber or a thermally conductive material, preferably a metal material.

6 and 7, a bottom plate 229 made of a thermally conductive material is provided in the baking apparatus 110 shown in Fig. 4, and another baking member 216 having a plurality of baking molds 228 having, for example, And a mounted state is shown.

9 to 11, intermediate rings 130 are provided in the baking apparatus 110 of FIGS. 4 and 6, wherein the intermediate ring is configured such that the joint 114 is in contact with the lower member 112 and the upper member 113, Can be used to seal the sides of the bake chamber when it is being adjusted for the maximum gap between the bake chamber and the bake chamber. By this intermediate ring 130, a closed baking chamber having a larger internal volume is formed in the closed state of the baking apparatus 110, for example, more than the making members 116 or 216 of FIGS. 4 to 7 The baking member 316 shown in Figs. 10 and 11, having a high height, can be used.

12 and 13 show an alternative baking member 416 comprised of two half shells 430 and 431 that are interlocked with each other. The inner regions of the half shells are composed of metal waffle molds 432 and 433 surrounded by silicon rings 434 and 435, respectively. The silicon ring 434 of the lower half shell 430 has an L-shaped cross section with an outer leg 436 partially surrounding the silicon ring 435 of the upper half shell. For example, if the dough is filled in the lower half shell and the upper half shell is inserted into the lower half shell, the rim surrounded silicone rings 434 and 435 provide a reliable seal of the baking die, It does not leak. In addition, the interlocked silicone rings allow the hot baking frame to be handled without problems after the baking process is over.

Claims (12)

(11; 111) comprising a lower member (12; 112) and an upper member (13; 113) and one or more heating members (18, 19) disposed in the lower member and / Wherein the lower member (12; 112) and the upper member (13; 113) are pivotally connected to each other by a joint (14; 114) and in a closed state, one or more removable baking members (16; 116, 216, 316, 416) are disposed in a bake chamber (15)
Characterized in that the removable baking member (16, 16 ';116;216;316; 416) is at least partially formed of silicone rubber. The electrical baking apparatus of claim 1, wherein the removable baking member (16, 16 '; 116; 216; 316; 416) is freely deployable within the bake chamber (15). The electric baking apparatus according to any one of claims 1 to 3, characterized in that the baking member (16, 16 '; 116; 216; 316; 416) has a baking plate or baking mold. The joint according to any one of claims 1 to 3, characterized in that the distance between the upper member (13; 113) and the lower member (12; 112) , An electric baking apparatus. 5. The electric baking apparatus according to any one of claims 1 to 4, characterized in that the upper member (13; 113) and the lower member (12; 112) are engaged with each other in a closed state of the housing. 6. A method according to any one of claims 1 to 5, wherein the lower member (12; 112) is pulled over the upper surface of the first heating member (18) 416). ≪ / RTI > The electrical baking apparatus of claim < RTI ID = 0.0 > 1, < / RTI > 7. The electric baking apparatus according to claim 6, characterized in that the upper member (13; 113) is engaged and engaged into the lower member (12; 112) in a closed state of the housings (11 and 111). 8. The apparatus of any one of claims 4 to 7, wherein the baking device (110) can be inserted between the upper member (113) and the lower member (112) (130). ≪ / RTI > 9. The electric baking apparatus according to any one of claims 1 to 8, characterized in that the first heating member (18) is disposed at the bottom of the lower member (12; 112) of the housing (11; 111). 10. The electric baking apparatus according to claim 9, characterized in that the baking member (16; 16 ') is placed on the bottom of the lower member (12; 112). 11. A method according to any one of claims 1 to 10, wherein the baking member (16,16 '; 116; 216; 316; 416) comprises at least a bottom member (20,229) comprising a baking mold formed of a thermally conductive material Wherein the electric baking apparatus comprises: 12. The electric heating apparatus according to any one of claims 1 to 11, characterized in that the second heating member (19) is arranged on the underside of the cover of the upper member (13; 113) of the housing (11; 111) .

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