Heating bowl for cooking preparation equipment

Abstract

The utility model relates to a heating bowl (1) for cooking preparation equipment, which comprises a heating bottom (2) and a side wall (3) rising from the heating bottom (2), and a rotary driver (4) penetrates through the heating bottom (2). A tubular heating element (5) is arranged below the heating bottom (2), the tubular heating element (5) extending around the rotary drive (4), the tubular heating element (5) having a heating portion (10) elongated by a first cold end (11) and a second cold end (12). According to the utility model, the heating part (10) extends around the rotary driver (4) at an angle between 330 degrees and 370 degrees, preferably at an angle between 340 degrees and 370 degrees, preferably at an angle between 350 degrees and 370 degrees.

Description

Technical Field

[0001] The utility model relates to the field of cooking preparation equipment comprising a working tool driven to rotate in a heating bowl.

[0002] The present invention more particularly relates to a heating bowl. Background Art

[0003] It is known to realize a heating bowl comprising a heating bottom and side walls rising from the heating bottom, wherein the heating bottom is penetrated by a rotary drive, and wherein a tubular heating element is arranged below the heating bottom around the rotary drive. However, the tubular heating element does not completely surround the rotary drive, resulting in the heating bottom having a hot area below the heated portion of the tubular heating element and a cold area at the end of the tubular heating element. This results in uneven heating of the heating bottom.

[0004] Document CN103565305A discloses a heating bowl of the aforementioned type, in which a tubular heating element surrounds a rotary drive. A first end of the tubular heating element, along with most of the tubular heating element, extends along the perimeter of the heating base. A second end of the tubular heating element extends away from the perimeter of the heating base, extending beyond the first end between the first end and the rotary drive, such that the tubular heating element extends over 360° around the rotary drive. However, due to the presence of a cold section at each end of the tubular heating element, the heating portion of the tubular heating element does not completely surround the rotary drive, and the heating base has a cold region at the ends of the tubular heating element. A thermal fuse, a thermostat, a temperature sensor, and an electrical connector configured to supply power to the tubular heating element are provided between the heating portion of the tubular heating element and the rotary drive. Consequently, this heating base utilizes a rather complex temperature control mechanism. This heating base does not provide uniform heating of the bottom of the heating bowl.

[0005] Document CN205286122U discloses a heating bowl of the above type, wherein the tubular heating element surrounds the rotary drive. More specifically, the tubular heating element is wound around the rotary drive. A first end portion of the tubular heating element as well as a first half of the tubular heating element extends along the periphery of the heating bottom, a second half of the tubular heating element extends away from the periphery of the heating bottom in order to extend between the first end portion of the tubular heating element and the rotary drive and to be wound around the rotary drive. Thus, due to the presence of a cold portion at each of the end portions of the tubular heating element, the tubular heating element has two heating portions on the first half of the circumference of the heating bottom, but only one heating portion on the second half of the circumference of the heating bottom. This also leads to an uneven heating of the heating bottom. A heat-conducting plate is fixed to the tubular heating element in the region with the two adjacent heating portions. This heat-conducting plate carries a fuse and a thermostat. The thermostat is arranged in the half of the heating bottom with the two heating portions. However, the fuse is very close to one of the end portions of the tubular heating element. This heating bottom no longer provides a uniform heating of the bottom of the heating bowl. SUMMARY

[0006] The present utility model aims at overcoming this drawback.

[0007] The technical problem underlying the present utility model consists in improving the heating uniformity of the heating bowl of a cooking preparation device by using a heating device which is simple and economical to implement.

[0008] To this end, the present utility model relates to a heating bowl for a cooking preparation device, comprising a heating bottom and a side wall rising from the heating bottom, the heating bottom being crossed by a rotary drive; a tubular heating element is arranged below the heating bottom, the tubular heating element extending around the rotary drive, the tubular heating element having a heating portion which is prolonged by a first cold end portion and a second cold end portion, characterized in that the heating portion extends around the rotary drive at an angle comprised between 330° and 370°, preferably at an angle comprised between 340° and 370°, preferably at an angle comprised between 350° and 370°.

[0009] The heating portion can advantageously extend around the rotary drive at an angle comprised between 355° and 365°, preferably at an angle comprised between 357° and 363°, preferably at an angle comprised between 359° and 361°.

[0010] The first cold end portion can be arranged at the periphery of the heating bottom.

[0011] The second cold end portion can be arranged between the heating portion and the rotary drive.

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

[0013] The electrical connector can be disposed above the first cold end portion and the second cold end portion.

[0014] The heating bowl can include a thermal fuse disposed in a half of the heating base opposite the first cold end portion and the second cold end portion.

[0015] The thermal fuse can be disposed in a central third of the heating portion.

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

[0017] The temperature sensor can be disposed in a central third of the heating portion.

[0018] The utility model also relates to a cooking preparation equipment, it includes the electric base of accomodating detachable heating bowl, the heating bowl accords with at least one of preceding features. BRIEF DESCRIPTION OF DRAWINGS

[0019] The objects, aspects and advantages of the utility model will be better understood with reference to the following description of a specific embodiment of the utility model, given by way of non-limiting example, with reference to the attached drawings in which:

[0020] Figure 1 is a side cross-sectional view of an embodiment of the heating bowl according to the utility model;

[0021] Figure 2 is Figure 1 a perspective top view of the heating bowl shown in

[0022] Figure 3 is Figure 1 and Figure 2 a perspective bottom view of the heating bowl shown in Figure 1 where the cover and the connector shown in

[0023] Figure 4 is a perspective bottom view of the heating bowl shown in Figures 1 to 3 where the connector shown in Figure 1 is shown, but the cover shown in Figure 1 is not shown;

[0024] Figure 5 is a perspective view of a cooking preparation equipment comprising Figures 1 to 4 the heating bowl shown in. DETAILED DESCRIPTION

[0025] Only the elements necessary for understanding the present invention are shown. For ease of reading the figures, identical elements have the same reference signs between different figures.

[0026] Figures 1 to 4 An embodiment of a heating bowl 1 for a cooking preparation apparatus is shown.

[0027] As Figure 1 and Figure 2 shown, the heating bowl 1 comprises a heating bottom 2 and a sidewall 3 rising from the heating bottom 2. The sidewall 3 can be closed by a lid 8 as Figure 5 shown. As Figure 1 and Figure 2 shown, the heating bottom 2 is passed through by a rotary driver 4. The rotary driver 4 can receive a detachable rotary working tool 7 as Figure 5 shown. Alternatively, the rotary working tool can be fixed to the rotary driver 4. A tubular heating element 5 is arranged below the heating bottom 2. A shield 6 is fixed below the heating bottom 2. The shield 6 is provided with a passage for the rotary driver 4. The shield houses the tubular heating element 5.

[0028] As Figure 1 and Figure 2 shown, the heating bottom 2 is flat around the rotary driver 4. The tubular heating element 5 extends below the flat portion of the heating bottom 2. The heating bottom 2 has a heat spreading plate carrying the tubular heating element 5 around the rotary driver 4. The tubular heating element 5 has a heating portion 10 elongated by a first cold end portion 11 and a second cold end portion 12.

[0029] As Figure 3 and Figure 4 shown more clearly, the tubular heating element 5 extends around the rotary driver 4. The tubular heating element 5 has a heating portion 10 elongated by a first cold end portion 11 and a second cold end portion 12.

[0030] To improve the heating uniformity of the heating bottom 2, the heating portion 10 extends around the rotary driver 4 at an angle comprised between 330° and 370°, preferably at an angle comprised between 340° and 370°, preferably at an angle comprised between 350° and 370°. The heating portion 10 advantageously extends around the rotary driver 4 at an angle comprised between 355° and 365°, more preferably at an angle comprised between 357° and 363°, more preferably at an angle comprised between 359° and 361°. The heating portion 10 and the cold portions (the first cold end portion 11 and the second cold end portion 12) can be defined notably by using temperature sensors placed in contact with the tubular heating element 5.

[0031] The first cold end portion 11 is arranged at the periphery of the heating bottom 2. The first cold end portion 11 is prolonged by the heating portion 10. A main part of the heating portion 10 is also arranged at the periphery of the heating bottom 2. The remaining part of the heating portion 10 is inserted between the first cold end portion 11 and the rotary drive 4. The second cold end portion 12 is arranged between the heating portion 10 and the rotary drive 4.

[0032] As shown in Figure 4 The heating bowl 1 comprises an electrical connector 20 connected to the terminals 21, 22 of the tubular heating element 5. One of the terminals 21, 22 comes from the first cold end portion 11 and the other terminal comes from the second cold end portion 12. Each of the terminals 21, 22 is connected to one of the pins of the electrical connector 20.

[0033] As shown in Figure 4 The heating bowl 1 comprises a thermal fuse 30. The thermal fuse 30 is connected to another one of the pins of the electrical connector 20. More particularly, the thermal fuse 30 is disposed in the half of the heating bottom 2 opposite the first cold end portion 11 and the second cold end portion 12. The thermal fuse 30 is disposed in the central third of the heating portion 10.

[0034] As shown in Figure 4 The heating bowl 1 comprises a temperature sensor 40. The temperature sensor 40 is also connected to another one of the pins of the electrical connector 20. More particularly, the temperature sensor 40 is disposed in the half of the heating bottom 2 opposite the first cold end portion 11 and the second cold end portion 12. The temperature sensor 40 is disposed in the central third of the heating portion 10.

[0035] More particularly, the electrical connector 20 is disposed above the first cold end portion 11 and the second cold end portion 12.

[0036] Figure 5 A cooking preparation apparatus is shown comprising an electric base 9 configured to receive the heating bowl 1, a rotary working tool 7 disposed to be mounted on the rotary drive 4, and a lid 8 disposed to close the heating bowl 1. The electrical connector 20 is disposed to supply the tubular heating element 5 with electricity when the heating bowl 1 is disposed on the electric base 9. The electrical connector 20 is disposed to connect the temperature sensor 40 to a thermal regulation device arranged in the electric base 9.

[0037] The heating bowl shown in the figures works and is used in the following way: the heating portion 10 forming an open loop around the rotary drive 4 on almost its entire circumference or even slightly more allows to obtain, by using the tubular heating element 5, a nearly uniform heating distribution for the heating bottom 2. Since the heating bottom 2 has no cold areas, its temperature rise and its cooling are more uniform, which allows to use a temperature regulation device that only requires a single temperature sensor. Thus, a structurally economical and easy to use heating bowl can be obtained.

[0038] Of course, the present application is not limited to the described and shown embodiments given by way of example. Modifications can be made, in particular with regard to the constituent elements, without departing from the scope of the present application, in particular by replacing technical equivalents.

Claims

1. A heating bowl (1) for a cooking preparation device, comprising: A heating bottom (2) and a side wall (3) rising from the heating bottom (2), the heating bottom (2) being passed through by a rotary drive (4); a tubular heating element (5) being arranged below the heating bottom (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), characterised in that the heating section (10) extends around the rotary drive (4) at an angle between 330° and 370°.

2. The heating bowl (1) for a cooking preparation device according to claim 1, characterized in that The heating section (10) extends around the rotary drive (4) at an angle between 340° and 370°.

3. The heating bowl (1) for cooking preparation equipment according to claim 1, characterized in that The heating section (10) extends around the rotary drive (4) at an angle of between 350° and 370°.

4. The heating bowl (1) for a cooking preparation device according to claim 1, characterized in that The heating section (10) extends around the rotary drive (4) at an angle between 355° and 365°.

5. The heating bowl (1) for cooking preparation equipment according to claim 1, characterized in that The heating section (10) extends around the rotary drive (4) at an angle between 357° and 363°.

6. The heating bowl (1) for a cooking preparation device according to claim 1, characterized in that The heating portion (10) extends around the rotary drive (4) at an angle between 359° and 361°.

7. A heating bowl (1) for a cooking preparation device according to any one of claims 1 to 6, characterized in that The first cold end (11) is arranged at the periphery of the heating bottom (2).

8. A heating bowl (1) for a cooking preparation device according to any one of claims 1 to 6, characterized in that The second cold end (12) is arranged between the heating portion (10) and the rotary drive (4).

9. A heating bowl (1) for a cooking preparation device according to any one of claims 1 to 6, characterized in that The heating bowl (1) comprises an electrical connector (20) connected to terminals (21, 22) of the tubular heating element (5).

10. The heating bowl (1) for a cooking preparation device according to claim 9, characterized in that The electrical connector (20) is arranged above the first cold end (11) and the second cold end (12).

11. A heating bowl (1) for a cooking preparation device according to any one of claims 1 to 6, characterized in that The heating bowl (1) comprises a thermal fuse (30) which is arranged in a half of the heating bottom (2) opposite to the first cold end (11) and the second cold end (12).

12. The heating bowl (1) for a cooking preparation device according to claim 11, characterized in that The thermal fuse (30) is disposed in the central third of the heating portion (10).

13. A heating bowl (1) for a cooking preparation device according to any one of claims 1 to 6, characterized in that The heating bowl (1) comprises a temperature sensor (40) which is arranged in a half of the heating bottom (2) opposite to the first cold end (11) and the second cold end (12).

14. The heating bowl (1) for a cooking preparation device according to claim 13, characterized in that The temperature sensor (40) is arranged in the central third of the heating portion (10).

15. A cooking preparation device comprising an electric base (9) for receiving a detachable heating bowl (1), characterized in that The heating bowl (1) complies with any one of claims 1 to 14.

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