Electric box of a cooking preparation household appliance

Abstract

The present invention relates to an electric box (1) for a cooking preparation household appliance, which comprises a housing (3) defining a content chamber (4) and an alternating current motor (5) arranged in the content chamber (4), the alternating current motor (5) comprising a rotor (6) and a stator (9), the rotor carrying a driver (7) rotatable along a rotation axis (8), wherein the housing (3) comprises at least one first inner lateral stop (41) and at least one second inner lateral stop (42), and the stator (9) is held between the at least one first inner lateral stop (41) and the at least one second inner lateral stop (42) along a direction defined by the rotation axis (8). According to the invention, the stator (9) is directly held between the at least one first inner lateral stop (41) and the at least one second inner lateral stop (42), and the at least one second inner lateral stop (42) is more flexible than the at least one first inner lateral stop (41) along a direction defined by the rotation axis (8).

Description

Technical field

[0001] The present invention relates to the technical field of cooking preparation household appliances including an alternating current motor.

[0002] The present invention more particularly relates to an electric box of a cooking preparation household appliance of the above type.

[0003] The present invention relates in particular but not exclusively to an electric box configured to be handheld.

[0004] The present invention relates in particular but not exclusively to an electric box assembled with a detachable accessory such as an immersion stirring foot. Background art

[0005] An alternating current motor includes a stator that includes stacked plates extending along an axis corresponding to the axis of rotation of the rotor. These plates are arranged between two collars. Due to the tolerances in the thickness of the plates, the thickness of the stacked plates has a certain discrete difference for different motors. The distance between the two collars along the axis of rotation thus also has a certain discrete difference. This is why an alternating current motor is usually held in an electric box of a stirring foot by means of a flexible buffer assembled on the motor inside the half-shell of the box.

[0006] According to document EP1529474, it is known to implement an electric box of a cooking preparation household appliance, in which the motor is placed on the box by means of buffer elements provided at the longitudinal ends of the motor, and the end buffer elements are connected to each other by at least one elastic connecting arm so as to form a single interface part, and the connecting arm ensures the retention of the buffer elements on the longitudinal ends of the motor.

[0007] This implementation allows ensuring a satisfactory retention of the alternating current motor while taking into account its axial dimensional tolerances. However, such buffers are dedicated and expensive components that require precise installation to be effective.

[0008] According to document WO2017143534, it is known to implement an electric box of a cooking preparation household appliance, in which the motor includes a connecting frame extending on both sides of the plates of the stator, and in which each of the ends of the frame is mounted in an elastic gasket, and the elastic gasket is held between two half-shells of the box containing the motor.

[0009] This implementation allows taking into account the axial dimensional tolerances of the alternating current motor. However, the installation of the motor on the two elastic gaskets may make it difficult to obtain a satisfactory retention of the motor. Summary of the invention

[0010] The object of the present invention is to provide an electric box of a cooking preparation household appliance including an alternating current motor, which has a more economical structure while ensuring a satisfactory retention of the alternating current motor regardless of its dimensional tolerances.

[0011] Another object of the present invention is to provide an electric box for a cooking preparation household appliance including an alternating current motor, which has an economical construction while ensuring a satisfactory holding of the alternating current motor, regardless of its dimensional tolerances and regardless of the deformation of the outer casing of the electric box during the service life of the cooking preparation household appliance.

[0012] These objects are achieved by an electric box for a cooking preparation household appliance, the electric box including an outer casing defining a content cavity and an alternating current motor arranged in the content cavity, the alternating current motor including a rotor and a stator, the rotor carrying a driver rotatable along a rotation axis, wherein the outer casing includes at least one first inner lateral stop and at least one second inner lateral stop, and the stator is held between the at least one first inner lateral stop and the at least one second inner lateral stop along a direction defined by the rotation axis, the stator being held directly between the at least one first inner lateral stop and the at least one second inner lateral stop, and the at least one second inner lateral stop being more flexible than the at least one first inner lateral stop along the direction defined by the rotation axis.

[0013] These features allow obtaining a satisfactory holding of the alternating current motor, regardless of its axial dimensional tolerances, and having an economical construction.

[0014] Advantageously, the at least one first inner lateral stop is arranged between the driver and the stator.

[0015] This arrangement allows having a rigid abutment on the driver side, which allows facilitating the control of the position of the driver in the outer casing.

[0016] Also advantageously, the outer casing includes at least one third inner lateral stop, the at least one third inner lateral stop being more rigid than the second inner lateral stop along the direction defined by the rotation axis, and the stator is clamped between the at least one first inner lateral stop and the at least one third inner lateral stop along the direction defined by the rotation axis.

[0017] This arrangement allows obtaining an axial holding of the electric motor between the first inner lateral stop and the at least one third inner lateral stop, and the at least one second inner lateral stop can thus have a rigid abutment on the driver side, which allows limiting the force on the at least one second inner lateral stop.

[0018] Advantageously, the housing includes two first inner lateral stops disposed on both sides of the rotation axis and two second inner lateral stops disposed on both sides of the rotation axis, the second inner lateral stops being more flexible than the first inner lateral stops along the direction defined by the rotation axis, and the stator being held between the two first inner lateral stops and the two second inner lateral stops along the direction defined by the rotation axis.

[0019] This arrangement allows for equalizing the holding forces of the motor on both sides of the rotation axis.

[0020] Advantageously, the housing includes two third inner lateral stops disposed on both sides of the rotation axis, the third inner lateral stops being more rigid than the second inner lateral stops, and the stator being clamped between the two first inner lateral stops and the two third inner lateral stops along the direction defined by the rotation axis.

[0021] This arrangement allows for improving the holding of the motor.

[0022] Advantageously, the housing includes a first half-shell that partially surrounds the AC motor, and the at least one first inner lateral stop directly originates from the first half-shell.

[0023] This arrangement helps to obtain a more economical construction.

[0024] Advantageously, the at least one second inner lateral stop directly originates from the first half-shell.

[0025] This arrangement helps to obtain a more economical construction.

[0026] Advantageously, the at least one third inner lateral stop directly originates from the first half-shell.

[0027] This arrangement helps to obtain a more economical construction.

[0028] Advantageously, the housing includes a second half-shell that partially surrounds the AC motor.

[0029] This arrangement helps to obtain a more economical construction.

[0030] Advantageously, the first half-shell is directly assembled with the second half-shell.

[0031] This arrangement helps to obtain a more economical construction.

[0032] Advantageously, the housing includes two first inner lateral stops, and the stator is laterally held between the two first inner lateral stops with respect to the direction defined by the rotation axis.

[0033] This arrangement helps with the lateral holding of the motor inside the housing.

[0034] Advantageously, the two first inner lateral stops are closer to the at least one second inner lateral stop than the at least one first inner transverse stop.

[0035] This arrangement allows for improved lateral retention of the electric motor inside the housing.

[0036] Advantageously, the two first inner lateral stops directly originate from the first half-shell.

[0037] This arrangement helps to achieve a more economical construction.

[0038] Advantageously, the housing includes two second inner lateral stops, and the stator is laterally retained between the two second inner lateral stops with respect to the direction defined by the rotational axis, and the stator extends mainly between the first inner lateral stop and the second inner lateral stop along the direction defined by the rotational axis.

[0039] This arrangement allows for improved lateral retention of the electric motor inside the housing.

[0040] Advantageously, in a direction transverse to the rotational axis, the two second inner lateral stops are more flexible than the two first inner lateral stops.

[0041] This arrangement allows for better consideration of the dimensional tolerances of the AC motor.

[0042] Advantageously, the two second inner lateral stops directly originate from the first half-shell.

[0043] This arrangement helps to achieve a more economical construction.

[0044] Advantageously, each of the two second inner lateral stops has a curved cross-section and includes two side edges configured to abut against the stator, and the second half-shell includes two fourth inner transverse stops, each of the two fourth inner transverse stops being configured to abut against one of the second inner lateral stops between the two side edges opposite to the stator so as to push the second inner lateral stop towards the stator when the first half-shell and the second half-shell are assembled.

[0045] This arrangement allows for further improved lateral retention of the electric motor inside the housing.

[0046] Advantageously, the stator is laterally retained inside the housing by at least one buffer element disposed between the stator and the housing.

[0047] This arrangement allows for retaining the electric motor when the housing deforms during the service life of the electric box.

[0048] Advantageously, the stator is laterally held inside the housing between a first damping element and a second damping element.

[0049] This arrangement helps to obtain a more economical construction.

[0050] Advantageously, the first damping element and the second damping element are annular, and the housing includes a first inner holding element and a second inner holding element, the first damping element being mounted on the first inner holding element and the second damping element being mounted on the second inner holding element.

[0051] This arrangement helps to obtain a more economical construction.

[0052] Advantageously, the first damping element is carried by the first half-shell and the second damping element is carried by the second half-shell.

[0053] This arrangement helps to obtain a more economical construction. Description of the Drawings

[0054] Other features and advantages of the present invention will become more apparent by reading the following detailed description of two non-limiting embodiments shown in the accompanying drawings, in which:

[0055] Figure 1 A longitudinal cross-sectional view showing a first embodiment of an electric box of a cooking preparation household appliance according to the present invention, in which the second half-shell of the housing of the electric box has been removed.

[0056] Figure 2 Shows Figure 1 A perspective view of the first half-shell of the housing of the electric box shown.

[0057] Figure 3 Shows Figure 2 A partial perspective view of the first half-shell of the housing shown.

[0058] Figure 4 Shows Figure 2 And Figure 3 Another partial perspective view of the first half-shell of the housing shown.

[0059] Figure 5 Shows Figure 1 A perspective view of the second half-shell of the housing of the electric box shown.

[0060] Figure 6 Shows Figure 5 A partial perspective view of the second half-shell of the housing shown.

[0061] Figure 7 A longitudinal cross-sectional view showing a second embodiment of an electric box of a cooking preparation household appliance according to the present invention.

[0062] Figure 8 Shows Figure 7 A perspective view of the first half-shell of the housing of the electric box shown.

[0063] Figure 9 Shows Figure 7 A perspective view of the second half-shell of the housing of the electric box shown.

[0064] Figure 10 Shows a perspective view of the immersion stirring foot attachment, which immersion stirring foot can be used with Figure 1 the electric box shown or with Figure 7 the electric box shown. Detailed Description

[0065] Figures 1 to 6 Shows a first embodiment of the electric box 1 of a cooking preparation household appliance. Figures 7 to 9 Shows a second embodiment of the electric box 1' of a cooking preparation household appliance. Figure 10 Shows an immersion stirring foot attachment 2 that can be used with the electric box 1 or the electric box 1'. The immersion stirring foot attachment 2 includes an attachment body 2a and a rotary tool 2b rotatably mounted in the attachment body 2a. The attachment body 2a can be assembled with the electric box 1 or the electric box 1' especially by screws or snap-fits.

[0066] The electric box 1 includes a housing 3 that defines a content cavity 4. The electric box 1 includes an AC motor 5 disposed in the content container 4. The AC motor 5 includes a rotor 6 and a stator 9. The rotor 6 carries a driver 7 that can rotate along a rotation axis 8. The driver 7 is configured to drive the rotary tool 2b of the immersion stirring foot attachment 2 assembled with the electric box 1 or the electric box 1' to rotate.

[0067] As Figure 1 shown, the stator 9 includes a first clamp 31 and a second clamp 32 mounted on both sides of the stacked plate 30 along the rotation axis 8. The first clamp 31 has a first end wall 31a that extends transversely with respect to the direction defined by the rotation axis 8. The second clamp 32 has a second end wall 32a that extends transversely with respect to the direction defined by the rotation axis 8. The first end wall 31a is extended by two first side walls 31b, 31c. The second end wall 32a is extended by two second side walls 32b, 32c. The first side walls 31b, 31c and the second side walls 32b, 32c are fixed to the stator 9 by screws, for example.

[0068] More specifically, in Figures 1 to 6 the first embodiment shown and Figures 7 to 9In the second embodiment shown, the housing 3 includes a first half-shell 10 that partially surrounds the AC motor 5, and a second half-shell 20 that partially surrounds the AC motor 5. The first half-shell 10 and the second half-shell 20 are assembled to form the housing 3. Preferably, the first half-shell 10 is directly assembled with the second half-shell 20. As Figure 4 and Figure 6 shown, the first half-shell 10 has an inner lateral edge 11 that is configured to nest inside the outer lateral edge 21 of the second half-shell 20. As Figure 3 and Figure 5 shown, the first half-shell 10 and the second half-shell 20 are assembled by snap fit. For this purpose, the second half-shell 20 has two opposite hooks 22 that are configured to engage in two retaining members 12 from the first half-shell 10. As a variant, other assembly modes can be considered, especially an assembly that fixes the first half-shell 10 and the second half-shell 20 together by screws. The first half-shell 10 and the second half-shell 20 are advantageously made of a plastic material, especially made of polypropylene (PP) or ABS.

[0069] As Figures 1 to 4 shown, the housing 3 includes two first inner lateral stops 41 arranged on both sides of the rotation axis 8. As Figure 1 shown, the first inner lateral stop 41 abuts against the first end wall 31a of the first clamp 31.

[0070] As Figures 1 to 3 shown, the housing 3 includes two second inner lateral stops 42 arranged on both sides of the rotation axis 8. As Figure 1 shown, the second inner lateral stop 42 abuts against the second end wall 32a of the second clamp 32.

[0071] As Figure 1 shown, the stator 9 is held between the two first inner lateral stops 41 and the two second inner lateral stops 42 along the direction defined by the rotation axis 8. The second inner lateral stop 42 is more flexible than the first inner lateral stop 41 along the direction defined by the rotation axis 8. As Figure 1 shown, the stator 9 is directly held between the first inner lateral stop 41 and the second inner lateral stop 42. In other words, the stator is held by the first inner lateral stop 41 and the second inner lateral stop 42, and on the one hand, there is no intermediate member between the stator 9 and the first inner lateral stop 41, and on the other hand, there is no intermediate member between the stator 9 and the second inner lateral stop 42.

[0072] As Figure 1 well shown, the first inner lateral stop 41 is arranged between the driver 7 and the stator 9.

[0073] As Figure 4As better shown, the housing 3 includes two third inner lateral stops 43 disposed on both sides of the rotation axis 8. The third inner lateral stops 43 are more rigid than the second inner lateral stops 42. As Figure 1 shown, the stator 9 is clamped between two first inner lateral stops 41 and two third inner lateral stops 43 along the direction defined by the rotation axis 8. More specifically, as Figure 1 shown, the first end wall 31a of the first clamp 31 is inserted between the first inner lateral stop 41 and the third inner lateral stop 43.

[0074] In Figures 1 to 6 the embodiment shown, the first inner lateral stops 41, the second inner lateral stops 42 and the third inner lateral stops 43 directly come from the first half shell 10.

[0075] As Figure 1 shown, the housing 3 includes two first inner lateral stops 51. The stator 9 is laterally held between the two first inner lateral stops 51 with respect to the direction defined by the rotation axis 8. The two first inner lateral stops 51 abut against two second side walls 32b, 32c.

[0076] More specifically, in Figures 1 to 6 the embodiment shown, the two first inner lateral stops 51 are closer to the second inner lateral stops 42 than the first inner lateral stops 41. The two first inner lateral stops 51 directly come from the first half shell 10.

[0077] As Figure 1 shown, the housing 3 includes two second inner lateral stops 52. The stator 9 is laterally held between the two second inner lateral stops 52 with respect to the direction defined by the rotation axis 8. The stator 9 mainly extends between the first inner lateral stops 51 and the second inner lateral stops 52 along the direction defined by the rotation axis 8. The two second inner lateral stops 52 abut against two first side walls 31b, 31c.

[0078] More specifically, in Figures 1 to 6 the embodiment shown, in the direction transverse to the rotation axis 8, the two second inner lateral stops 52 are more flexible than the two first inner lateral stops 51. The two second inner lateral stops 52 directly come from the first half shell 10. As Figure 4 shown, the two second inner lateral stops 52 each have a curved cross-section and include two lateral edges 52a, 52b. The two lateral edges 52a, 52b are configured to abut against the stator 9.

[0079] As Figure 5 and Figure 6As shown, the second half shell 20 includes two fourth inner lateral stops 44. Each of the fourth inner lateral stops 44 is configured to abut against one of the second inner lateral stops 52 between two lateral edges 52a, 52b opposite to the stator 9, so as to push the second inner lateral stop 52 towards the stator 9 when the first half shell 10 and the second half shell 20 are assembled. Thus, when the first half shell 10 and the second half shell 20 are assembled, the two second inner lateral stops 52 are pushed towards the stator 9. The curved shape and flexibility of the second inner lateral stops 52 allow the second inner lateral stops 52 pushed by the fourth inner lateral stops 44 to abut against two first lateral walls 31b, 31c of the first clamp 31. Thus, lateral retention at the first clamp 31 can be obtained regardless of the dimensional tolerance of the width of the first clamp 31 between the two first lateral walls 31b, 31c.

[0080] As a variant, the housing 3 may include at least one first inner lateral stop 41 and at least one second inner lateral stop 42, and the stator 9 is held between the at least one first inner lateral stop 41 and the at least one second inner lateral stop 42 along the direction defined by the rotation axis 8, and the at least one second inner lateral stop 42 is more flexible than the at least one first inner lateral stop 41 along the direction defined by the rotation axis 8. Thus, the stator 9 is directly held between the at least one first inner lateral stop 41 and the at least one second inner lateral stop 42.

[0081] As a variant, the housing 3 may include at least one third inner lateral stop 43, and the at least one third inner lateral stop 43 is more rigid than the at least one second inner lateral stop 42 along the direction defined by the rotation axis 8. Thus, the stator 9 is clamped between the at least one first inner lateral stop 41 and the at least one third inner lateral stop 43 along the direction defined by the rotation axis 8.

[0082] Figures 7 to 9 The shown electric box 1’ is different from Figures 1 to 6 the shown electric box 1 in that the stator 9 is laterally held between a first buffer element 61 and a second buffer element 62 inside the housing 3’.

[0083] More specifically, in Figures 7 to 9 the shown embodiment, the first buffer element 61 and the second buffer element 62 are annular. The housing 3’ includes a first inner holding element 63 and a second inner holding element 64, the first buffer element 61 is mounted on the first inner holding element 63, and the second buffer element 62 is mounted on the second inner holding element 64.

[0084] As Figure 8As better shown, the first buffer element 61 is carried by the first half-shell 10'. The first inner holding element 63 is formed by a cross rib from the inner wall of the first half-shell 10'.

[0085] As Figure 9 As better shown, the second buffer element 62 is carried by the second half-shell 20'. The second inner holding element 64 is formed by a cross rib from the inner wall of the second half-shell 20'.

[0086] As a variant, the stator 9 can be laterally held inside the housing 3' by at least one buffer element arranged between the stator 9 and the housing 3'. If necessary, the buffer element can at least partially surround the stator 9, preferably it can surround the stator 9 on at least half of the circumference of the stator 9.

[0087] The electric boxes 1, 1' are used as follows. The stator 9 of the AC motor 5 is inserted between the first inner lateral stop 41 and the second inner lateral stop 42. The second inner lateral stop 42, which is more flexible than the first inner lateral stop 41 along the direction defined by the rotation axis 8, can be deformed along the direction defined by the rotation axis 8 so as to ensure an elastic abutment on the stator 9 and press the stator 9 against the first inner lateral stop 41. Thus, a satisfactory mounting of the AC motor 5 in the housings 3, 3' can be obtained while taking into account the dimensional tolerances of the stator 9 along the direction defined by the rotation axis 8. In the direction transverse to the direction defined by the rotation axis, the dimensional tolerances of the stator 9 are not large. The first inner lateral stop 51 and the second inner lateral stop 52 allow ensuring the lateral holding of the stator 9 inside the housings 3, 3'. According to the second embodiment, the first buffer element 61 and the second buffer element 6 also allow ensuring the lateral holding of the stator 9 inside the housing 3'.

[0088] As a variant, the housings 3, 3' can include other elements different from the first half-shells 10, 10' and the second half-shells 20, 20'.

[0089] The present invention is in no way limited to the described embodiments and their variants, but includes numerous modifications within the scope of the claims.

Claims

1. An electric box (1; 1') for a cooking preparation household appliance, the electric box comprising a housing (3; 3') defining a content cavity (4) and an alternating current motor (5) arranged in the content cavity (4), the alternating current motor (5) comprising a rotor (6) and a stator (9), the rotor carrying a driver (7) capable of rotating along a rotation axis (8). Wherein, the housing (3; 3') comprises at least one first inner lateral stop (41) and at least one second inner lateral stop (42), and the stator (9) is held between the at least one first inner lateral stop (41) and the at least one second inner lateral stop (42) along a direction defined by the rotation axis (8), characterized in that the stator (9) is directly held between the at least one first inner lateral stop (41) and the at least one second inner lateral stop (42), and the at least one second inner lateral stop (42) is more flexible than the at least one first inner lateral stop (41) along the direction defined by the rotation axis (8). The housing (3; 3') comprises a first half-shell (10; 10') partially surrounding the alternating current motor (5), and the housing (3; 3') comprises a second half-shell (20; 20') partially surrounding the alternating current motor (5). The housing (3; 3') comprises two first inner lateral stops (51), and the stator (9) is held laterally between the two first inner lateral stops (51) relative to the direction defined by the rotation axis (8). The housing (3; 3') comprises two second inner lateral stops (52), and the stator (9) is held laterally between the two second inner lateral stops (52) relative to the direction defined by the rotation axis (8), and the stator (9) extends mainly between the first inner lateral stops (51) and the second inner lateral stops (52) along the direction defined by the rotation axis (8). Each of the two second inner lateral stops (52) has a curved cross-section and comprises two side edges (52a, 52b) configured to abut against the stator (9), and the second half-shell (20) comprises two fourth inner lateral stops (44), each of the two fourth inner lateral stops (44) being configured to abut against one of the second inner lateral stops (52) between the two side edges (52a, 52b) opposite to the stator (9) so as to push the second inner lateral stop (52) towards the stator (9) when the first half-shell (10; 10') and the second half-shell (20; 20') are assembled.

2. The electric box (1; 1') for a cooking preparation household appliance according to claim 1, characterized in that, the at least one first inner lateral stop (41) is arranged between the driver (7) and the stator (9).

3. The electric box (1; 1') for a cooking preparation household appliance according to claim 1 or 2, characterized in that, The housing (3; 3') includes at least one third inner lateral stop (43), the at least one third inner lateral stop (43) being more rigid than the second inner lateral stop (42) along the direction defined by the rotation axis (8), and the stator (9) being clamped between the at least one first inner lateral stop (41) and the at least one third inner lateral stop (43) along the direction defined by the rotation axis (8).

4. The electric box (1; 1') of the cooking preparation household appliance according to claim 1 or 2, characterized in that the housing (3; 3') includes two first inner lateral stops (41) arranged on both sides of the rotation axis (8) and two second inner lateral stops (42) arranged on both sides of the rotation axis (8), the second inner lateral stops (42) being more flexible than the first inner lateral stops (41) along the direction defined by the rotation axis (8), and the stator (9) being held between the two first inner lateral stops (41) and the two second inner lateral stops (42) along the direction defined by the rotation axis (8).

5. The electric box (1; 1') of the cooking preparation household appliance according to claim 1 or 2, characterized in that the at least one first inner lateral stop (41) directly comes from the first half shell (10; 10').

6. The electric box (1; 1') of the cooking preparation household appliance according to claim 1 or 2, characterized in that the at least one second inner lateral stop (42) directly comes from the first half shell (10; 10').

7. The electric box (1; 1') of the cooking preparation household appliance according to claim 3, characterized in that the at least one third inner lateral stop (43) directly comes from the first half shell (10; 10').

8. The electric box (1; 1') of the cooking preparation household appliance according to claim 1 or 2, characterized in that the first half shell (10; 10') is directly assembled with the second half shell (20; 20').

9. The electric box (1; 1') of the cooking preparation household appliance according to claim 1 or 2, characterized in that the two first inner lateral stops (51) are closer to the at least one second inner lateral stop (42) than the at least one first inner lateral stop (41).

10. The electric box (1; 1') of the cooking preparation household appliance according to claim 1 or 2, characterized in that the two first inner lateral stops (51) directly come from the first half shell (10; 10').

11. The electric box (1; 1') of the cooking preparation household appliance according to claim 1 or 2, characterized in that in the direction transverse to the rotation axis (8), the two second inner lateral stops (52) are more flexible than the two first inner lateral stops (51).

12. The electric box (1; 1') of the cooking preparation household appliance according to claim 1 or 2, characterized in that Said two second inner lateral stops (52) directly originate from said first half-shell (10; 10').

13. The electric box (1; 1') of a cooking preparation household appliance according to claim 1 or 2, characterized in that said stator (9) is laterally held inside said outer shell (3') by at least one buffer element arranged between said stator (9) and said outer shell (3').

14. The electric box (1; 1') of a cooking preparation household appliance according to claim 1 or 2, characterized in that said stator (9) is laterally held inside said outer shell (3') between a first buffer element (61) and a second buffer element (62).

15. The electric box (1; 1') of a cooking preparation household appliance according to claim 14, characterized in that said first buffer element (61) and said second buffer element (62) are annular, and said outer shell (3') includes a first inner holding element (63) and a second inner holding element (64), said first buffer element (61) being mounted on said first inner holding element (63), and said second buffer element (62) being mounted on said second inner holding element (64).

16. The electric box (1; 1') of a cooking preparation household appliance according to claim 14, characterized in that said first buffer element (61) is carried by said first half-shell (10'), and said second buffer element (62) is carried by said second half-shell (20').

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