Heated bowl for food processor

Abstract

Heatable bowl (1) for a food processor, comprising a heatable base (2) and a side wall (3) extending upwards from the heatable base (2), wherein a rotary drive (4) passes through the heatable base (2), wherein a tubular heating element (5) is arranged below the heatable base (2), the tubular heating element (5) extending around the rotary drive (4), the tubular heating element (5) having a heating section (10) extended by a first cold end (11) and a second cold end (12), characterized in that the heating section (10) extends around the rotary drive (4) at an angle in the range of 330° to 370°, preferably an angle in the range of 340° to 370°, particularly preferably an angle in the range of 350° to 370°.

Description

Technical area

[0001] The present invention relates to the field of kitchen appliances comprising a working device that is set in rotation in a heatable bowl.

[0002] The present invention particularly relates to the heatable bowl. State of the art

[0003] It is known to produce a heatable bowl comprising a heatable base and a side wall extending upward from the heatable base, wherein a rotary drive penetrates the heatable base and a tubular heating element is arranged around the rotary drive below the heatable base. However, the tubular heating element does not completely surround the rotary drive, so that the heatable base has a hot area in the heating sections of the tubular heating element and a cold area near the ends of the tubular heating element. This results in the heatable base not being heated homogeneously.

[0004] CN103565305A discloses a heated bowl of the above-mentioned type, in which the tubular heating element surrounds the rotary drive. A first end of the tubular heating element and the major part of the tubular heating element extend along the perimeter of the heated base, with a second end of the tubular heating element extending away from the perimeter of the heated base and extending between the first end of the tubular heating element and the rotary drive beyond the first end, such that the tubular heating element extends more than 360° around the rotary drive. However, due to the presence of a cold part at each end of the tubular heating element, the heated part of the tubular heating element does not completely enclose the rotary drive, and the heated base has a cold area at the ends of the tubular heating element.Between the heated part of the tubular heating element and the rotary actuator are a thermal fuse, a thermostat, a temperature sensor, and an electrical connector configured to supply power to the tubular heating element. This heated base uses a rather sophisticated temperature control device. This heated base does not ensure even heating of the bottom of the heated bowl.

[0005] CN205286122U discloses a heated bowl of the above-mentioned type, in which the tubular heating element surrounds the rotary drive. In particular, the tubular heating element is wrapped around the rotary drive. A first end of the tubular heating element and a first half of the tubular heating element extend along the periphery of the heated base, with a second half of the tubular heating element diverging from the periphery of the heated base to extend between the first end of the tubular heating element and the rotary drive and to be wrapped around the rotary drive. Due to the presence of a cold section at each end of the tubular heating element, the tubular heating element thus has two heating sections on a first half of the periphery of the heated base, but only one heating section on a second half of the periphery of the heated base.This also results in the heated base not being heated evenly. A thermally conductive plate is attached to the tubular heating element in the area with two adjacent heating sections. This thermally conductive plate carries a fuse and a thermostat. The thermostat is located in the half of the heated base that has two heating sections. However, the fuse is located very close to one of the ends of the tubular heating element. This heated base also does not allow for even heating of the bottom of the heated bowl. Summary of the invention

[0006] The present invention aims to remedy this disadvantage.

[0007] The technical problem underlying the invention is to improve the homogeneity of heating a heatable bowl of a food processor by using a heating device that is simple and inexpensive to manufacture.

[0008] To this end, the invention relates to a heatable bowl for a kitchen utensil, comprising a heatable base and a side wall extending upwards from the heatable base, wherein a rotary drive traverses the heatable base, wherein a tubular heating element is arranged below the heatable base, wherein the tubular heating element extends around the rotary drive, wherein the tubular heating element has a heating section extended by a first cold end and a second cold end, wherein the heating section extends around the rotary drive over an angle in the range of 330° to 370°, preferably an angle in the range of 340° to 370°, more preferably an angle in the range of 350° to 370°.

[0009] The heating section can advantageously extend around the rotary drive over an angle in the range of 355° to 365°, preferably an angle in the range of 357° to 363°, particularly preferably an angle in the range of 359° to 361°.

[0010] The first cold end can be located at the perimeter of the heated floor.

[0011] The second cold end may be located between the heating section and the rotary drive.

[0012] The heated bowl may include an electrical connector connected to the terminals of the tubular heating element.

[0013] The electrical connector may be disposed over the first cold end and the second cold end.

[0014] The heated bowl may include a thermal fuse located in the half of the heated base opposite the first cold end and the second cold end.

[0015] The thermal fuse can be located in the middle third of the heating section.

[0016] The heated bowl may include a temperature sensor disposed in the half of the heated base opposite the first cold end and the second cold end.

[0017] The temperature sensor can be located in the middle third of the heating section.

[0018] Another object of the invention is a food processor with a motorized base that accommodates a removable heatable bowl that corresponds to at least one of the above-mentioned features. Short description of the characters

[0019] The objects, aspects and advantages of the present invention will be better understood from the following description of a particular embodiment of the invention, given as a non-limiting example, with reference to the accompanying drawings in which Fig. 1 is a side sectional view of an embodiment of a heatable bowl according to the invention; Fig. 2 a perspective top view of the Fig. 1 is the heated bowl shown; Fig. 3 a perspective bottom view of the Fig. 1 and Fig. 2 shown heatable bowl, in which a Fig. 1 visible cover and one connector are not shown; Fig. 4 a perspective bottom view of the Fig. 1 to 3 shown heated bowl, in which the Fig. 1 visible plug, but not the one in Fig. 1 visible cover is shown; Fig. 5 a perspective view of a food processor with the Fig. 1 to 4 shown heated bowl.

[0020] Only those elements necessary for understanding the invention are shown. To facilitate readability of the drawings, the same elements in each figure bear the same reference numerals.

[0021] The Fig. 1 to 4 show an embodiment of a heatable bowl 1 for a food processor.

[0022] As in the Fig. 1 and Fig. 2, the heatable bowl 1 has a heatable base 2 and a side wall 3 extending upwards from the heatable base 2. The side wall 3 can be closed by a lid 8, which Fig. 5. As shown in the Fig. 1 and Fig. 2, a rotary drive 4 passes through the heated floor 2. The rotary drive 4 can accommodate a removable, rotatable working device 7, which in Fig. 5. Alternatively, the working device can be attached to the rotary drive 4. A tubular heating element 5 is arranged beneath the heated floor 2. A cover 6 is attached beneath the heated floor 2. The cover 6 has a passage for the rotary drive 4. The cover accommodates the tubular heating element 5.

[0023] As in the Fig. 1 and Fig. 2, the heated floor 2 is flat around the rotary drive 4. The tubular heating element 5 extends beneath a flat portion of the heated floor 2. The heated floor 2 includes a thermally conductive plate that supports the tubular heating element 5 around the rotary drive 4. The tubular heating element 5 includes a heating portion 10 extended by a first cold end 11 and a second cold end 12.

[0024] As in the Fig. 3 and Fig. 4, the tubular heating element 5 extends around the rotary drive 4. The tubular heating element 5 has a heating section 10 which is extended by a first cold end 11 and a second cold end 12.

[0025] For more uniform heating of the heatable floor 2, the heating section 10 extends around the rotary drive 4 over an angle in the range of 330° to 370°, preferably over an angle in the range of 340° to 370°, particularly preferably over an angle in the range of 350° to 370°. The heating section 10 advantageously extends around the rotary drive 4 over an angle in the range of 355° to 365°, more preferably over an angle in the range of 357° to 363°, even more preferably over an angle in the range of 359° to 361°. The heating section 10 and the cold sections (the first cold end 11 and the second cold end 12) can be defined in particular by using a temperature sensor arranged in contact with the tubular heating element 5.

[0026] The first cold end 11 is arranged on the periphery of the heated floor 2. The first cold end 11 is extended by the heating section 10. The larger section of the heating section 10 is also arranged on the periphery of the heated floor 2. The remaining section of the heating section 10 is inserted between the first cold end 11 and the rotary drive 4. The second cold end 12 is arranged between the heating section 10 and the rotary drive 4.

[0027] As in Fig. As can be seen in Figure 4, the heated bowl 1 has an electrical connector 20 connected to the terminals 21, 22 of the tubular heating element 5. One of the terminals 21, 22 protrudes from the first cold end 11, and the other terminal protrudes from the second cold end 12. Both terminals 21, 22 are connected to one of the pins of the electrical connector 20.

[0028] As in Fig. As can be seen in Figure 4, the heatable bowl 1 contains a thermal fuse 30. The thermal fuse 30 is connected to another pin of the electrical connector 20. In particular, the thermal fuse 30 is arranged in the half of the heatable base 2 opposite the first cold end 11 and the second cold end 12. The thermal fuse 30 is arranged in the middle third of the heating section 10.

[0029] As in Fig. As can be seen in Figure 4, the heatable bowl 1 has a temperature sensor 40. The temperature sensor 40 is connected to another pin of the electrical connector 20. In particular, the temperature sensor 40 is arranged in the half of the heatable base 2 opposite the first cold end 11 and the second cold end 12. The temperature sensor 40 is arranged in the middle third of the heating section 10.

[0030] In particular, the electrical connector 20 is arranged over the first cold end 11 and the second cold end 12.

[0031] Fig. 5 shows a food processor with a motorized base 9 designed to receive the heated bowl 1, a rotatable working device 7 designed to be mounted on the rotary drive 4, and a lid 8 designed to close the heated bowl 1. The electrical connector 20 is designed to supply power to the tubular heating element 5 when the heated bowl 1 is arranged on the motorized base 9. The electrical connector 20 is designed to connect the temperature sensor 40 to a temperature control device arranged in the motorized base 9.

[0032] The heated bowl shown in the figures functions and is used as follows: The heating section 10, which forms an open loop surrounding the rotary actuator 4 almost around its entire circumference, or even slightly more, enables a nearly uniform heat distribution for the heated base 2 when using the tubular heating element 5. Since the heated base 2 has no cold zones, its heating and cooling is more uniform, allowing the use of a temperature control device that requires only a single temperature sensor. In this way, a heated bowl with a cost-effective design and easy handling can be achieved.

[0033] Of course, the invention is not limited to the embodiment described and illustrated, which serves only as an example. Modifications are still possible, particularly with regard to the nature of the various elements or through the use of technical equivalents, without thereby departing from the scope of the invention. QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] CN103565305A

[0004] CN205286122U

[0005]

Claims

[1] Heatable bowl (1) for a food processor, comprising a heatable base (2) and a side wall (3) extending upwards from the heatable base (2), a rotary drive (4) passing through the heatable base (2), a tubular heating element (5) being arranged under the heatable base (2), the tubular heating element (5) extending around the rotary drive (4), the tubular heating element (5) having a heating section (10) extended by a first cold end (11) and a second cold end (12), characterized by that the heating section (10) extends over an angle in the range of 330° to 370°, preferably an angle in the range of 340° to 370°, particularly preferably an angle in the range of 350° to 370°, around the rotary drive (4). [2] Heatable bowl (1) for a food processor according to claim 1, characterized bythat the heating section (10) extends over an angle in the range of 355° to 365°, preferably an angle in the range of 357° to 363°, particularly preferably an angle in the range of 359° to 361°, around the rotary drive (4). [3] Heatable bowl (1) for a food processor according to one of claims 1 or 2, characterized by that the first cold end (11) is arranged on the circumference of the heatable base (2). [4] Heatable bowl (1) for a food processor according to one of claims 1 to 3, characterized by that the second cold end (12) is arranged between the heating section (10) and the rotary drive (4). [5] Heatable bowl (1) for a food processor according to one of claims 1 to 4, characterized by that it has an electrical connector (20) which is connected to the terminals (21, 22) of the tubular heating element (5). [6] Heatable bowl (1) for a food processor according to claim 5, characterized bythat the electrical connector (20) is arranged over the first cold end (11) and the second cold end (12). [7] Heatable bowl (1) for a food processor according to one of claims 1 to 6, characterized by in that it comprises a thermal fuse (30) arranged in the half of the heatable base (2) opposite the first cold end (11) and the second cold end (12). [8] Heatable bowl (1) for a food processor according to claim 7, characterized by that the thermal fuse (30) is arranged in the middle third of the heating section (10). [9] Heatable bowl (1) for a food processor according to one of claims 1 to 8, characterized by in that it comprises a temperature sensor (40) arranged in the half of the heatable floor (2) opposite the first cold end (11) and the second cold end (12). [10] Heatable bowl (1) for a food processor according to claim 9, characterized by that the temperature sensor (40) is arranged in the middle third of the heating section (10). [11] Food processor with a motorized base (9) which accommodates a removable heatable bowl (1), characterized by that the heatable bowl (1) corresponds to one of claims 1 to 10.

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