Pot body assembly and cooking utensil

Abstract

The utility model provides a pot body assembly and a cooking utensil, and the pot body assembly comprises a heat preservation cover; the inner pot is arranged on the heat preservation cover in a removable manner; the stirring assembly comprises a stirring structure rotatably arranged on the inner pot and a first plug connector for driving the stirring structure to rotate; and the driving structure comprises a driving piece arranged on the side wall of the heat preservation cover and a second inserting piece movably arranged on the driving piece, the driving piece can drive the second inserting piece to rotate, and the second inserting piece can be matched with or separated from the first inserting piece in an inserting mode. According to the technical scheme, the problem that in the related technology, assembly errors are generated in the component installation process of a driving structure, so that the driving structure and the stirring assembly are separated from each other and are prone to being blocked is effectively solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to small household electrical appliances technical field, specifically, a pot body subassembly and cooking utensil. BACKGROUND

[0002] With the improvement of living standards, automatic cooking utensils gradually entered the public's vision, and due to the easy operation mode, are loved by the majority of users. Among them, the cooking machine is one of them, and the cooking machine drives the stirring assembly to rotate by using the driving structure, thereby realizing the stir-frying function of the food material.

[0003] In order to facilitate the use of users, the inner pot of the cooking utensil is generally arranged on the outer pot along the vertical direction, and the direction of the user taking and placing the pot is perpendicular to the extension direction of the rotating axis of the stirring assembly, so that the user needs to first disengage the stirring assembly from the driving structure when taking and placing the inner pot.

[0004] At present, the cooking utensil in the related art can use the button structure, the magnetic part or the cover to disengage the driving structure from the stirring assembly, but due to assembly error, the driving structure and the stirring assembly are prone to jam when disengaging the insertion, and even cannot be smoothly inserted.

[0005] Specifically, the driving part of the driving structure and the stirring structure of the stirring assembly are matched through the first insertion part and the second insertion part, when the first insertion part and the second insertion part are inserted and matched, the driving structure and the stirring assembly are inserted, when the first insertion part and the second insertion part are disengaged, the driving structure and the stirring assembly are disengaged. The first insertion part is installed on the stirring structure, the driving part is installed on the driving part mounting frame, the driving part mounting frame is installed on the shell of the outer pot, the driving part of the driving structure is installed on the guide frame, and the guide frame is installed on the shell, so as to facilitate the movement of the second insertion part. If any assembly link is not assembled in place, error occurs, the second insertion part and the first insertion part are prone to deviate, so that the driving structure and the stirring assembly are prone to jam when disengaging the insertion, and even cannot be smoothly inserted. SUMMARY

[0006] The main purpose of the utility model is to provide a pot body subassembly and cooking utensil, so as to solve the problem that the assembly error occurs in the component mounting process of the driving structure in the related art, and the driving structure and the stirring assembly are prone to jam when disengaging the insertion.

[0007] In order to achieve the above object, according to one aspect of the present application, a kind of pot body assembly, comprising: heat preservation cover;Inner pot, can be taken and placed on heat preservation cover;Stirring assembly, including rotatably arranged on the stirring structure of inner pot and the first plug-in component of driving stirring structure rotation;Driving structure, including the driving element of setting on the side wall of heat preservation cover and the second plug-in component of movably setting on driving element, driving element can drive second plug-in component rotation, second plug-in component can be inserted with first plug-in component or separate cooperation.

[0008] The technical scheme of the present application, when second plug-in component and first plug-in component are inserted with cooperation, driving element drives first plug-in component to rotate through second plug-in component, to drive stirring structure to rotate, so that stirring structure can stir the food material in inner pot;When second plug-in component and first plug-in component separate cooperation, driving structure is no longer inserted with stirring assembly, and inner pot can be taken out from heat preservation cover. Wherein, since driving element is installed on the side wall of heat preservation cover, thus, avoid the component of driving structure to be installed on other structure (such as driving element mounting frame) again to be installed on shell to produce larger assembly error, simplify assembly relationship, reduce assembly error, facilitate second plug-in component to separate insertion with first plug-in component smoothly, reduce the possibility that driving structure and stirring assembly separate insertion appear jam.

[0009] Further, driving element includes shell connected with heat preservation cover and driving body arranged in shell, and second plug-in component is movably arranged on the driving shaft of driving body. This structure design directly fixes driving element on heat preservation cover, reduces additional connecting link between components, thereby reducing assembly error.

[0010] Further, one of shell and heat preservation cover is provided with connecting lug, and the other of shell and heat preservation cover is provided with connecting hole, and connecting lug is connected with connecting hole. Through the fixed connection of connecting lug and connecting hole, not only the stable combination of driving element and heat preservation cover is ensured, but also positioning reference is provided, further reducing positional deviation during assembly, improving the stability and reliability of overall structure.

[0011] Further, heat preservation cover includes cover body and first connecting arm arranged on cover body, and driving element is arranged on first connecting arm. Driving element is installed on first connecting arm, so that the connection of driving structure and heat preservation cover is more direct, and intermediate link is reduced, and the precision influence caused by assembly error of shell or driving element mounting frame is reduced.

[0012] Further, the first connecting arm and the cover body are in an integrated molding structure. The integrated molding structure improves the strength and rigidity of the heat preservation cover, reduces the assembly error in the manufacturing process, because the first connecting arm and the cover body do not need to be separately manufactured and then assembled, thereby simplifying the manufacturing process, reducing the cost, and improving the stability of the installation position of the driving member.

[0013] Further, the driving structure further comprises a pushing member for driving the second plug-in element to move, and the pushing member is in a guiding cooperation with the first connecting arm. The guiding cooperation between the pushing member and the first connecting arm ensures the accuracy of the moving track of the pushing member and the moving direction of the second plug-in element, which is helpful for the smooth plug-in and disengagement between the second plug-in element and the first plug-in element, and avoids the jamming of the second plug-in element during the plug-in and disengagement due to the deviation of the moving direction of the pushing member.

[0014] Further, the first connecting arm is provided with a first guiding portion, the pushing member is provided with a second guiding portion in guiding cooperation with the first guiding portion, one of the first guiding portion and the second guiding portion is a guiding column, and the other of the first guiding portion and the second guiding portion is a guiding hole. The cooperation between the guiding column and the guiding hole provides a guiding path for the movement of the pushing member, and the accurate guiding cooperation reduces the shaking and deviation of the pushing member during the movement, and ensures the smooth contact and disengagement between the second plug-in element and the first plug-in element, thereby reducing the risk of plug-in jamming.

[0015] Further, the driving member comprises a housing connected with the first guiding portion and a driving body arranged in the housing, and the second plug-in element is movably arranged on a driving shaft of the driving body. In the guiding direction of the first guiding portion and the second guiding portion, the housing is located on the side of the pushing member away from the cover body, and the housing is capable of being in stop cooperation with the pushing member. The stop cooperation between the housing and the pushing member provides a stop point for the movement of the pushing member, which not only limits the movement range of the pushing member and prevents the over-movement of the pushing member from causing the disengagement between the second plug-in element and the driving shaft, but also ensures the accurate position of the second plug-in element on the driving shaft, thereby improving the stability and reliability of the plug-in.

[0016] Further, the pot body assembly further comprises a reset member arranged between the pushing member and the cover body, and the reset member applies a reset force to the pushing member. The reset member enables the pushing member to automatically reset after completing the task of driving the second plug-in element to move, thereby reducing the manual operation steps of the user and improving the use convenience.

[0017] According to another aspect of the present application, a cooking appliance is provided, which comprises a pot body assembly and a cover body arranged on the pot body assembly, the pot body assembly is the above-mentioned pot body assembly, and the pot body assembly further comprises a shell arranged outside the heat preservation cover, and the shell and the heat preservation cover jointly form an outer pot for accommodating an inner pot. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings accompanying the specification of the present application serve to provide further understanding of the present application, the illustrative embodiments of the present application and the explanations thereof serve to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0019] Figure 1 A perspective structural schematic view of an embodiment of the pot body assembly according to the present application is shown, wherein the shell is not shown;

[0020] Figure 2 An exploded structural schematic view of the pot body assembly of Figure 1 is shown;

[0021] Figure 3 A partial structural and a perspective structural schematic view of the pot body assembly of Figure 2 and a driving member are shown;

[0022] Figure 4 A sectional structural schematic view of the pot body assembly of Figure 1 is shown;

[0023] Figure 5 An enlarged schematic view of A of the pot body assembly of Figure 4 is shown.

[0024] Among them, the above drawings include the following reference signs:

[0025] 10, outer pot; 11, heat preservation cover; 111, cover body; 112, first connecting arm; 113, first guide part; 12, connecting hole;

[0026] 20, inner pot;

[0027] 30, stirring assembly; 31, stirring structure; 32, first plug-in part; 33, fixing pin;

[0028] 40, driving structure; 41, driving member; 411, shell; 412, driving body; 413, connecting lug; 42, second plug-in part; 43, pushing member; 431, second guide part; 44, reset member;

[0029] 51, stirring shaft; 52, magnet; 53, sealing plug; 54, support. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is merely illustrative in nature and in no way should be taken as a limitation of the present application and applications or uses thereof. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of the present application.

[0031] It is to be noted that the terms used herein are merely for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprise" and / or "include" when used in this specification, specify the presence of stated features, steps, operations, devices, components and / or combinations thereof.

[0032] The relative arrangement of components and steps, numerical expressions, and numerical values set forth in the embodiments are not intended to limit the scope of the present application unless specifically stated otherwise. It should be understood that the dimensions of the various parts shown in the drawings are not drawn to scale for ease of description. Techniques, methods, and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the specification where appropriate. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary, and not as a limitation. Therefore, other examples of the exemplary embodiments can have different values. It should be noted that similar reference numbers and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0033] As Figures 1 to 5 As shown in the figure, the present application provides a pot body assembly, and an embodiment of the pot body assembly comprises a heat preservation cover 11, an inner pot 20, a stirring assembly 30, and a driving structure 40. The inner pot 20 is arranged on the heat preservation cover 11 in a removable manner. The stirring assembly 30 comprises a stirring structure 31 rotatably arranged on the inner pot 20 and a first plug-in piece 32 driving the stirring structure 31 to rotate. The driving structure 40 comprises a driving piece 41 arranged on the side wall of the heat preservation cover 11 and a second plug-in piece 42 movably arranged on the driving piece 41, the driving piece 41 can drive the second plug-in piece 42 to rotate, and the second plug-in piece 42 can be plugged in cooperation with or separated from the first plug-in piece 32.

[0034] When the second plug-in part 42 is plugged with the first plug-in part 32, the driving part 41 drives the first plug-in part 32 to rotate through the second plug-in part 42, so as to drive the stirring structure 31 to rotate, so that the stirring structure 31 can stir the food materials in the inner pot 20; when the second plug-in part 42 is disengaged from the first plug-in part 32, the driving structure 40 is no longer plugged with the stirring assembly 30, and the inner pot 20 can be taken out from the heat preservation cover 11. Since the driving part 41 is installed on the side wall of the heat preservation cover 11, the components of the driving structure 40 are not installed on other structures (such as a driving part mounting frame) and then mounted on the shell, so that a large assembly error is avoided, the assembly relationship is simplified, the assembly error is reduced, the second plug-in part 42 is smoothly disengaged from the first plug-in part 32, and the possibility of jamming when the driving structure 40 is disengaged from the stirring assembly 30 is reduced. Therefore, the technical scheme of the embodiment effectively solves the problem that the components of the driving structure generate assembly errors in the installation process, and the driving structure is disengaged from the stirring assembly and is prone to jamming. The driving part 41 is preferably an electric motor.

[0035] In the embodiment, the second plug-in part 42 has a plurality of plug-in teeth on the outer shape, and the first plug-in part 32 is provided with a plurality of plug-in grooves matched with the plurality of plug-in teeth. When the plurality of plug-in teeth are plugged with the plurality of plug-in grooves, the second plug-in part 42 is plugged with the first plug-in part 32; when the plurality of plug-in teeth are disengaged from the plurality of plug-in grooves, the second plug-in part 42 is disengaged from the first plug-in part 32.

[0036] As shown in Figures 1 to 5 The driving part 41 includes a shell 411 connected with the heat preservation cover 11 and a driving body 412 provided in the shell 411, and the second plug-in part 42 is movably arranged on the driving shaft of the driving body 412. This structure directly fixes the driving part 41 on the heat preservation cover 11, reduces the additional connection links between components, and thus reduces the assembly error. Since the second plug-in part 42 is installed on the driving shaft of the driving body 412, the position accuracy of the second plug-in part 42 is mainly determined by the machining accuracy of the driving body 412, and the machining accuracy of the driving body 412 is usually higher than that of the heat preservation cover 11. Therefore, the cooperation between the second plug-in part 42 and the first plug-in part 32 is more accurate, and the risk of plug-in jamming is reduced.

[0037] As shown in Figures 1 to 5 The side wall of the heat preservation cover 11 is provided with a connecting lug 413, and the side wall of the shell 411 is provided with a connecting hole 12, and the connecting lug 413 is connected with the connecting hole 12. Through the fixed connection of the connecting lug 413 and the connecting hole 12, the stable combination of the driving part 41 and the heat preservation cover 11 is ensured, a positioning reference is provided, the positional deviation during assembly is further reduced, and the stability and reliability of the overall structure are improved.

[0038] Specifically, the connecting relationship between the connecting hole 12 and the connecting lug 413 is connected by a fastener to fixedly connect the connecting lug 413 to the side wall of the heat preservation cover 11.

[0039] In other embodiments, the side wall of the heat preservation cover 11 is provided with the connecting lug 413, and the side wall of the shell 411 is provided with the connecting hole 12.

[0040] As shown in Figures 1 to 5 The heat preservation cover 11 includes a cover body 111 and a first connecting arm 112 provided on the cover body 111, and the driving member 41 is arranged on the first connecting arm 112. The driving member 41 is mounted on the first connecting arm 112, so that the connection between the driving structure 40 and the heat preservation cover 11 is more direct, the intermediate link is reduced, and the precision influence caused by the assembly error of the shell or the driving member mounting frame is reduced. At the same time, the installation position of the driving member 41 can be optimized by using the spatial layout of the first connecting arm 112, and the compactness of the overall structure is improved.

[0041] As shown in Figures 1 to 5 The first connecting arm 112 and the cover body 111 are an integral molding structure. The integral molding structure improves the strength and rigidity of the heat preservation cover 11, reduces the assembly error in the manufacturing process, because the first connecting arm 112 and the cover body 111 do not need to be manufactured separately and then assembled, thereby simplifying the manufacturing process, reducing the cost, and also improving the stability of the installation position of the driving member 41.

[0042] As shown in Figures 1 to 5 The driving structure 40 further includes a pushing member 43 for driving the second plug-in member 42 to move, and the pushing member 43 is in guiding cooperation with the first connecting arm 112. The guiding cooperation between the pushing member 43 and the first connecting arm 112 ensures the accuracy of the movement track of the pushing member 43 and the movement direction of the second plug-in member 42, which helps the smooth plugging and disengaging between the second plug-in member 42 and the first plug-in member 32, and avoids the jamming of the second plug-in member 42 during plugging or disengaging due to the deviation of the movement direction of the pushing member 43.

[0043] As shown in Figures 1 to 5 The first connecting arm 112 is provided with a first guiding portion 113, and the pushing member 43 is provided with a second guiding portion 431 in guiding cooperation with the first guiding portion 113. The first guiding portion 113 is a guiding column, and the second guiding portion 431 is a guiding hole. The guiding column and the guiding hole provide a guiding path for the movement of the pushing member 43. This precise guiding cooperation reduces the shaking and deviation of the pushing member 43 during movement, ensures the smooth contact and disengagement between the second plug-in member 42 and the first plug-in member 32, and reduces the risk of plugging jamming.

[0044] In other embodiments, the second guiding portion 431 is a guiding column, and the first guiding portion 113 is a guiding hole.

[0045] As Figures 1 to 5 shown, the driving member 41 includes a shell 411 connected with the first guide part 113 and a driving body 412 arranged in the shell 411, and the second plug-in member 42 is movably arranged on a driving shaft of the driving body 412. In the guide direction of the first guide part 113 and the second guide part 431, the shell 411 is located on the side of the pushing member 43 away from the cover body 111, and the shell 411 can be stop matched with the pushing member 43. The stop matching of the shell 411 and the pushing member 43 provides a stop point for the movement of the pushing member 43, which not only can limit the movement range of the pushing member 43 to prevent its excessive movement from causing the disengagement of the second plug-in member 42 from the driving shaft, but also can ensure the accurate position of the second plug-in member 42 on the driving shaft, thereby improving the stability and reliability of the plug-in.

[0046] As Figures 1 to 5 shown, the pot body assembly further includes a reset member 44 arranged between the pushing member 43 and the cover body 111, and the reset member 44 applies a reset force to the pushing member 43. The presence of the reset member 44 enables the pushing member 43 to automatically reset after completing the task of driving the second plug-in member 42 to move, thereby reducing the steps of manual operation of the user and improving the use convenience. Meanwhile, the automatic reset is helpful to maintain the appropriate distance of the second plug-in member 42 from the first plug-in member 32 in the inoperative state, thereby preventing accidental plug-in, or generating excessive friction in the plug-in process, and prolonging the service life of the components. The reset member 44 is preferably a spring.

[0047] As ​ shown, in the present embodiment, the fixing pin 33 is positioned in the first positioning groove of the heat preservation cover 11 through the first side of the inner pot 20, the stirring shaft 51 of the first end of the stirring structure 31 is sleeved on the fixing pin 33, the second end of the stirring structure 31 is positioned in the second positioning groove of the heat preservation cover 11 through the second side of the inner pot 20 through the support 54, the sealing plug 53 is arranged at the position where the second end of the stirring structure 31 passes through the inner pot 20, and the pushing member 43 is provided with a fixing part, and a magnet 52 is fixed in the fixing part. In this way, the pot body assembly further includes an electromagnet provided with a magnetic attraction with the magnet 52, and when the electromagnet is powered on, a repulsive force is generated between the electromagnet and the magnet 52, which can push the pushing member 43 to move, so that the pushing member 43 drives the second plug-in member 42 to move towards the first plug-in member 32, so that the second plug-in member 42 can be plug-in matched with the first plug-in member 32. When the magnet is powered off, the second plug-in member 42 is driven to move away from the first plug-in member 32 by the reset force of the reset member 44, so that the second plug-in member 42 is disengaged from the first plug-in member 32.

[0048] The application also provides a cooking utensil, an embodiment of the cooking utensil comprising a pot body assembly and a cover body arranged on the pot body assembly, the pot body assembly being the pot body assembly described above, and the pot body assembly further comprising a shell arranged outside the heat preservation cover 11, the shell and the heat preservation cover 11 jointly forming an outer pot 10 for accommodating an inner pot 20. The pot body assembly described above can solve the assembly error in the mounting process of the components of the driving structure in the related art, so that the problem of easy jamming of the driving structure and the stirring assembly is solved, and the cooking utensil comprising the pot body assembly can solve the same technical problem.

[0049] An embodiment of the cooking utensil is a stir-fry machine, and in other embodiments, the cooking utensil is a dough maker or a whipping machine or a soybean milk machine or a breaking wall machine or a multifunctional pot.

[0050] In the description of the present application, it should be understood that the orientation words such as "front, back, up, down, left, right", "horizontal, vertical, perpendicular, horizontal" and "top, bottom" and the like indicate the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and in the absence of the opposite description, these orientation words do not indicate and imply that the devices or elements referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the protection scope of the present application; the orientation words "inner, outer" refer to the inner and outer of the contour of each component itself.

[0051] For the convenience of description, spatial relative terms such as "on", "above", "upper surface", "upper" and the like can be used herein to describe the spatial positional relationship of one device or feature with respect to other devices or features as shown in the drawings. It should be understood that the spatial relative terms are intended to include different orientations in use or operation in addition to the orientation of the devices described in the drawings. For example, if the devices in the drawings are inverted, the device described as "above" or "on" other devices or structures will be positioned "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein are interpreted accordingly.

[0052] In addition, it should be noted that the use of the words "first", "second" and the like to define parts is only for the convenience of distinguishing the corresponding parts, and the above words have no special meaning unless otherwise stated, and therefore cannot be understood as a limitation on the protection scope of the present application.

[0053] The above merely describes preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A pan assembly comprising: The utility model relates to a pot body assembly, which comprises: a heat preservation cover (11); an inner pot (20) arranged on the heat preservation cover (11) in a removable manner; a stirring assembly (30) comprising a stirring structure (31) rotatably arranged on the inner pot (20) and a first plug-in connector (32) for driving the stirring structure (31) to rotate; a driving structure (40) comprising a driving member (41) arranged on the sidewall of the heat preservation cover (11) and a second plug-in connector (42) movably arranged on the driving member (41), wherein the driving member (41) is capable of driving the second plug-in connector (42) to rotate, and the second plug-in connector (42) is capable of being in plug-in cooperation or disengagement with the first plug-in connector (32).

2. The kettle body assembly of claim 1, wherein, The driving member (41) comprises a shell (411) connected with the heat preservation cover (11) and a driving body (412) arranged in the shell (411), and the second plug-in connector (42) is movably arranged on the driving shaft of the driving body (412).

3. The kettle body assembly of claim 2, wherein, One of the shell (411) and the heat preservation cover (11) is provided with a connecting lug (413), and the other of the shell (411) and the heat preservation cover (11) is provided with a connecting hole (12), and the connecting lug (413) is connected with the connecting hole (12).

4. The kettle body assembly of any one of claims 1 to 3, wherein, The heat preservation cover (11) comprises a cover body (111) and a first connecting arm (112) arranged on the cover body (111), and the driving member (41) is arranged on the first connecting arm (112).

5. The kettle assembly of claim 4, wherein, The first connecting arm (112) and the cover body (111) are in an integrated structure.

6. The pot body assembly of claim 4, wherein, The driving structure (40) further comprises a pushing member (43) for driving the second plug-in connector (42) to move, and the pushing member (43) is in guiding cooperation with the first connecting arm (112).

7. The kettle body assembly of claim 6, wherein, The first connecting arm (112) is provided with a first guiding portion (113), the pushing member (43) is provided with a second guiding portion (431) in guiding cooperation with the first guiding portion (113), one of the first guiding portion (113) and the second guiding portion (431) is a guiding column, and the other of the first guiding portion (113) and the second guiding portion (431) is a guiding hole.

8. The kettle body assembly of claim 7, wherein, The driving member (41) comprises a shell (411) connected with the first guiding portion (113) and a driving body (412) arranged in the shell (411), and the second plug-in connector (42) is movably arranged on the driving shaft of the driving body (412), in the guiding direction of the first guiding portion (113) and the second guiding portion (431), the shell (411) is located on the side of the pushing member (43) away from the cover body (111), and the shell (411) is capable of being in stop cooperation with the pushing member (43).

9. The pot body assembly of claim 6, wherein, The pot body assembly further comprises a reset member (44) arranged between the pushing member (43) and the cover body (111), and the reset member (44) applies a reset force to the pushing member (43).

10. A cooking appliance comprising a pot body assembly and a cover body provided on the pot body assembly, characterized in that, The pot assembly is the pot assembly according to any one of claims 1 to 9, further comprising a housing located outside the heat-insulating cover (11), the housing and the heat-insulating cover (11) jointly forming an outer pot (10) for accommodating the inner pot (20).

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