CN217274314U - Cooking device and cooking utensil - Google Patents

Abstract

The application provides a cooking apparatus and cooking utensil relates to household electrical appliances technical field to solve the technical problem of the easy interference control panel of forceful electric power wire on the current circuit board. The cooking device comprises a shell (1), wherein the shell (1) is provided with an accommodating cavity (2), a circuit board (3) and a control board (4) are arranged in the accommodating cavity (2), and the circuit board (3) and the control board (4) are arranged at intervals; a shielding piece (5) is arranged between the circuit board (3) and the control board (4). Be provided with spacing muscle (6) on the diapire of casing (1), spacing muscle (6) have the spacing groove, at least part shield (5) card is established in the spacing groove. This application can reduce the circuit board to the interference of control panel, guarantees the normal work of control panel, improves cooking device and cooking utensil's job stabilization nature.

Description

Cooking device and cooking utensil

Technical Field

The application relates to the technical field of household appliances, in particular to a cooker and a cooking appliance.

Background

The induction cooker as a common electromagnetic cooking appliance has the advantages of rapid heating, no open fire, safety, convenience and the like, and is favored and approved by more and more consumers.

The induction cooker comprises a bottom shell and an upper cover, wherein the upper cover covers the bottom shell, the upper cover and the bottom shell jointly enclose a containing cavity, and a circuit board, a control board, a heat dissipation fan and a coil panel are arranged in the containing cavity. In order to reduce the size of the induction cooker, the layout of components inside the accommodating cavity is compact, wherein the coil panel is arranged above the heat dissipation fan and the circuit board, and the control panel is positioned on the side wall of the bottom shell and adjacent to the circuit board. The control panel, the coil panel and the heat dissipation fan are all electrically connected with the circuit board through wires, and a user controls the working states of the coil panel and the heat dissipation fan through the control panel.

However, the strong electric wires on the circuit board are liable to interfere with the control board, which affects the display and operation of the control board, resulting in poor working stability of the induction cooker.

SUMMERY OF THE UTILITY MODEL

In order to solve at least one problem mentioned in the background art, the application provides a cooking device and a cooking utensil, which can reduce the interference of a circuit board to a control board, ensure the normal operation of the control board and improve the working stability of the cooking device.

In order to achieve the above object, a first aspect of the present application provides a cooking device, which includes a housing having a receiving cavity, a circuit board and a control board disposed in the receiving cavity, the circuit board and the control board being spaced apart from each other; a shield is disposed between the circuit board and the control board.

The cooker that this application embodiment provided through set up the shielding part between circuit board and control panel, can form electric field shielding wall one between circuit board and control panel, has prevented the electric field signal that the forceful electric power wire produced on the circuit board to the control panel transmission to the at utmost has avoided the interference of circuit board to the control panel, has guaranteed that the control panel can normally work, has improved the job stabilization nature of cooker.

In one possible embodiment, the circuit board has an arrangement area, and the strong current conductors on the circuit board are located in the arrangement area.

The orthographic projection of the shield on the control panel covers the orthographic projection of the placement area on the control panel.

Therefore, the shielding part can shield interference signals generated by the strong current lead to the maximum extent, and the shielding effect of the shielding part is better.

In one possible embodiment, there is a gap between the shield and the circuit board, and between the shield and the control board.

Therefore, on one hand, the shielding part is prevented from contacting with the circuit board and the control board, on the other hand, interference signals can be attenuated, and the shielding effect is improved.

In one possible embodiment, the clearance between the shield and the circuit board is greater than the clearance between the shield and the control board.

Therefore, the interference signal can be attenuated more, and the shielding effect is better.

In one possible embodiment, the shield is detachably connected to the housing.

Thus, the difficulty of installing the cooking device can be reduced.

In a possible embodiment, a limiting rib is arranged on the bottom wall of the housing, the limiting rib is provided with a limiting groove, and at least part of the shielding part is clamped in the limiting groove.

Therefore, the shielding part can be assembled more conveniently, and the assembling difficulty of the shielding part is reduced.

In a possible implementation mode, the number of the limiting ribs is two, the two limiting ribs are symmetrically arranged at two ends of the shielding part, the limiting grooves of the two limiting ribs jointly form a clamping area, and at least part of the shielding part is located in the clamping area.

Therefore, the assembly of the shielding part can be firmer, and the assembly stability of the shielding part is improved.

In one possible embodiment, the shield comprises a connecting section, the connecting section being located within the snap-in region; the length of the connecting section is not less than that of the clamping area.

Like this, can make shielding piece and spacing muscle interference fit, improve the assembly stability of shielding piece.

In one possible embodiment, the length of the connecting section differs from the length of the clamping area by a difference of 0 to 5 mm.

Like this, can make shielding piece and spacing muscle assembly more firm, improve the assembly stability of shielding piece.

In a possible embodiment, the connecting section includes a guiding section and a clamping section, the guiding section is located on one side of the shielding member close to the bottom wall of the housing, and the length of the guiding section gradually increases from one end far away from the clamping section to one end close to the clamping section.

Therefore, the shield can be assembled more conveniently, and the assembly difficulty of the cooker is reduced.

In a possible embodiment, the bottom wall of the housing is provided with a blocking rib, which is located between the shield and the control panel.

The blocking rib is an insulating part and is integrally formed with the shell.

Like this, on the one hand can avoid the shield to contact with the control panel, and on the other hand can improve the assembly stability of shield.

In a possible embodiment, the shielding element comprises a magnetic-resisting metal element, or the shielding element comprises a copper foil or an aluminum foil, and the shielding element is attached to the barrier rib.

Therefore, the arrangement modes of the shielding piece are more, and the arrangement difficulty of the shielding piece is reduced.

In a possible embodiment, the gap between the shield and the circuit board is between 5 and 30 mm.

In one possible embodiment, the gap between the shield and the control board is between 1.5-30 mm.

Thus, the inner space of the cooker can be minimized, and the shielding effect of the shielding member can be ensured.

In one possible embodiment, the housing includes an upper cover, a middle frame, and a lower cover, the middle frame connecting the upper cover and the lower cover. The control panel is located the center, and shielding part and circuit board all are located the lower cover.

Thus, the internal layout of the cooker can be made more compact, which is advantageous for reducing the size of the cooker.

A second aspect of the present application provides a cooking appliance comprising the above-described cooker.

The cooking utensil that this application embodiment provided, through set up the shielding part between the circuit board of cooking ware and control panel, can form electric field shielding wall between circuit board and control panel, prevented the electric field signal that the forceful electric power wire produced on the circuit board to the control panel transmission to the interference of circuit board to the control panel has been avoided to the at utmost, has guaranteed that the control panel can normally work, has improved cooking ware and cooking utensil's job stabilization nature.

The construction of the present application and other objects and advantages thereof will be more apparent from the following description of the preferred embodiments taken in conjunction with the accompanying drawings.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic structural diagram of a cooking device according to an embodiment of the present application;

FIG. 2 is a schematic diagram of an internal structure of a cooking device (without a heating element and a top cover) according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of an internal structure of a cooking device (without a heating element) according to an embodiment of the present invention;

FIG. 4 is an enlarged view of a portion I of FIG. 3;

FIG. 5 is a schematic structural diagram of a heating element, a control panel and a shielding element of a cooking device according to an embodiment of the present application;

FIG. 6 is a schematic structural view of a lower cover of a cooking apparatus according to an embodiment of the present application;

FIG. 7 is a schematic view of a shield of a cooking device according to an embodiment of the present invention;

fig. 8 is a schematic structural view of another shielding member of a cooker according to an embodiment of the present invention.

Description of the reference numerals:

100-a cooking device;

1-a shell;

11-an upper cover;

12-middle frame;

13-lower cover;

2-an accommodating cavity;

3-a circuit board;

4-control panel;

5-a shield;

51-a connecting segment;

511-a guide section;

512-a clamping section;

6-limiting ribs;

61-a snap-fit zone;

7-blocking ribs;

8-heating element;

9-display panel.

Detailed Description

In the related art, in order to reduce the size of the induction cooker, the coil panel is generally stacked above the heat dissipation fan and the circuit board, and the control board is disposed next to the circuit board. The different wires of holding intracavity portion all need be connected with the circuit board, wherein, the connecting wire of coil panel and circuit board to and the connecting wire between the different components in the circuit board is 220V voltage, and the control panel is the low voltage component, and in the use, because above-mentioned forceful electric power wire is nearer apart from the control panel, the electric field that the forceful electric power wire produced easily causes the interference to the control panel, leads to the control panel easily to show unusually and the mistake key that jumps, has seriously influenced the job stabilization nature and the user experience of electromagnetism stove.

Based on foretell technical problem, the application provides a cooking device and cooking utensil, through set up the shielding part between the circuit board of cooking device and control panel, can form electric field shielding wall one between circuit board and control panel, has prevented the electric field signal that the forceful electric power wire produced on the circuit board to the control panel transmission to furthest has avoided the interference of circuit board to the control panel, has guaranteed that the control panel can normally work, has improved cooking device and cooking utensil's job stabilization nature.

In order to make the objects, technical solutions and advantages of the present application clearer, the technical solutions in the embodiments of the present application will be described in more detail below with reference to the accompanying drawings in the preferred embodiments of the present application. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The embodiments described are some, but not all embodiments of the disclosure. The embodiments described below with reference to the accompanying drawings are illustrative and intended to explain the present application and should not be construed as limiting the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Fig. 1 is a schematic structural diagram of a cooker according to an embodiment of the present application. Fig. 2 is a schematic view of the internal structure of a cooking device (without a heating element and a top cover) according to an embodiment of the present invention. Fig. 3 is a schematic diagram of an internal structure of a cooking device (without a heating element) according to an embodiment of the present application. Fig. 4 is a partially enlarged view of portion i in fig. 3. Fig. 5 is a schematic structural view of a heating element, a control panel and a shielding element of a cooker according to an embodiment of the present application. Fig. 6 is a schematic structural view of a lower cover of a cooker according to an embodiment of the present application. Fig. 7 is a schematic structural diagram of a shielding member of a cooking device according to an embodiment of the present application. Fig. 8 is a schematic structural view of another shielding member of a cooker according to an embodiment of the present invention. Referring to fig. 1 to 8, a first aspect of an embodiment of the present application provides a cooker.

As shown in fig. 1 and 2, the cooking device 100 includes a housing 1, the housing 1 has a receiving chamber 2, a circuit board 3 and a control board 4 are disposed in the receiving chamber 2, and the circuit board 3 and the control board 4 are spaced apart from each other. A shield 5 is provided between the circuit board 3 and the control board 4.

It should be noted that, by arranging the shielding member 5 between the circuit board 3 and the control board 4, an electric field shielding wall can be formed between the circuit board 3 and the control board 4, and an electric field signal generated by a strong current conducting wire on the circuit board 3 is prevented from being transmitted to the control board 4, so that the interference of the circuit board 3 on the control board 4 is avoided to the maximum extent, the control board 4 is ensured to work normally, and the working stability of the cooker 100 is improved.

It is understood that the cooker 100 may be an induction cooker, an electric ceramic cooker, an electric rice cooker, an electric pressure cooker, or the like. In the embodiment of the present application, cooker 100 is described by taking an induction cooker as an example.

Specifically, as shown in fig. 2, the circuit board 3 has an arrangement area, and the strong electric wires on the circuit board 3 are located in the arrangement area. The orthographic projection of the shield 5 on the control panel 4 covers the orthographic projection of the arrangement area on the control panel 4.

It can be understood that this arrange the district and be used for arranging voltage specially for 220V's wire, arrange the district through setting up, be convenient for on the one hand to rationally arrange the forceful electric power wire in holding chamber 2, make things convenient for walking of forceful electric power wire and assembly, on the other hand is convenient for arrange the forceful electric power wire is concentrated, makes the interference electric field that the forceful electric power wire produced can concentrate in an area, is convenient for shield. In addition, through making the orthographic projection of shield 5 on control panel 4 cover and arrange the orthographic projection of district on control panel 4, like this, can guarantee that shield 5 forms an effectual electric field shield wall between circuit board 3 and control panel 4, this electric field shield wall does not have "dead angle", can cover the route that the interference electric field propagated to control panel 4 completely, and interference signal that maximum shielding forceful electric power wire produced guarantees that shield 5's shielding effect is better.

In one possible embodiment, as shown in fig. 5, the shield 5 has a first spacing L1 from the circuit board 3 and the shield 5 has a second spacing L2 from the control board 4, wherein the first spacing L1 and the second spacing L2 may be equal or different.

Note that, gaps are provided between the shield 5 and the circuit board 3 and between the shield 5 and the control board 4. On the one hand, since the shield 5 has conductivity, it is possible to prevent the shield 5 from being electrically contacted with the circuit board 3 and the control board 4, and to prevent short-circuiting. On the other hand, since the signal is attenuated during transmission, by providing a space between the shielding member 5 and the circuit board 3, the interference signal can be attenuated before the shielding member 5 shields the interference signal, thereby improving the shielding effect of the shielding member 5.

Specifically, the first spacing L1 is greater than the second spacing L2.

By making the first pitch L1 larger than the second pitch L2, the gap between the shield 5 and the circuit board 3 can be made sufficiently large, the path through which the interference signal propagates through the shield 5 becomes long, and since the attenuation value of the interference signal per unit length is constant, the propagation path becomes large, the total attenuation value of the interference signal increases, the interference signal reaching the shield 5 becomes weak, and the shielding effect of the shield 5 becomes better. It is understood that the second distance L2 should be greater than zero, so as to avoid the contact between the shielding element 5 and the control board 4, and prevent short circuit, and the first distance L1 can be made sufficiently large to ensure the shielding effect of the shielding element 5 on the basis of ensuring the electrical insulation between the shielding element 5 and the control board 4.

In one possible embodiment, the length of the first distance L1 is between 5 and 30mm, wherein the length of the first distance L1 may be 5mm, 15mm, 25mm or 30 mm. When the first distance L1 is less than 5mm, the assembly space of the shield 5 is limited, and the shield 5 easily comes into contact with the circuit board 3, resulting in a short circuit. When the first distance L1 is greater than 30mm, the free space in the receiving chamber 2 is increased, which is disadvantageous to the miniaturization of the cooker 100.

In one possible embodiment, the length of the second distance is between 1.5 and 30mm, wherein the length of the second distance L2 may be 1.5mm, 10mm, 20mm or 30 mm. When the second distance L2 is less than 1.5mm, the assembly space of the shield 5 is limited, and the shield 5 is easily brought into contact with the control board 4, resulting in a short circuit. When the second distance L2 is greater than 30mm, the free space in the receiving chamber 2 is increased, which is disadvantageous to the miniaturization of the cooker 100.

Specifically, the shield 5 is detachably connected to the housing 1. Thus, on the one hand, it is convenient to manufacture the shield 5 and the housing 1 separately, and on the other hand, it is convenient to assemble the shield 5, reducing the difficulty of assembling the cooker 100.

It will be appreciated that the shield 5 and the housing 1 may also be assembled by means of a fixed connection, for example, the shield 5 is welded to the housing 1, or the shield 5 is riveted to the housing 1. The advantage of the fixed connection is that the shield 5 is assembled more firmly and is not easily detached from the housing 1.

It should be noted that, in the detachable connection mode, the shielding member 5 and the housing 1 may be connected by a fastener, or the shielding member 5 and the housing 1 are bonded by a glue, and the specific setting mode of the detachable connection is not limited in the embodiment of the present application, and a user may select according to the actual situation.

In a possible embodiment, a clamping groove may be provided on the shielding element 5, a buckle may be provided on the housing 1, and the shielding element 5 and the housing 1 are connected by the mutual clamping of the buckle and the clamping groove.

In another possible embodiment, as shown in fig. 2, a limiting rib 6 is provided on the bottom wall of the housing 1, the limiting rib 6 has a limiting groove (not shown), and at least part of the shielding member 5 is clamped in the limiting groove.

It should be noted that, by arranging the limiting rib 6, the limiting rib 6 and the housing 1 can be integrally injection-molded, so that the limiting rib 6 can be conveniently manufactured. Through establishing shield 5 card in the spacing groove, can make shield 5 assemble more convenient, reduce shield 5's the assembly degree of difficulty.

It will be appreciated that the retaining rib 6 may be located on the bottom wall of the housing 1 with the notch of the retaining groove facing in the direction of the upper cover 11, and the shield 5 may be placed in the retaining groove.

In a possible embodiment, as shown in fig. 2 and 6, the number of the limiting ribs 6 is two, two limiting ribs 6 are symmetrically arranged at two ends of the shielding element 5, and the limiting grooves of the two limiting ribs 6 together form a clamping area 61, and at least part of the shielding element 5 is located in the clamping area 61.

It should be noted that, two limiting ribs 6 are symmetrically arranged at two ends of the shielding part 5, so that the two ends of the shielding part 5 along the length direction can be limited, and the shielding part 5 is prevented from sliding in the accommodating cavity 2. Through setting up block area 61, can firmly block shield 5 and establish in block area 61, make more firmly of shield 5 assembly, improve the assembly stability of shield 5.

In one possible embodiment, as shown in fig. 7, the shielding element 5 includes a connecting segment 51, the connecting segment 51 is located in the clamping area 61, the length of the connecting segment 51 is not less than the length of the clamping area 61, in fig. 7, the length of the connecting segment 51 is L3, and in fig. 6, the length of the clamping area 61 is L4.

In this way, when assembling the shield 5, the connecting segments 51 can be snapped into the snap-in areas 61, facilitating the assembly of the shield 5. Through making the length of linkage segment 51 be no less than the length of block district 61, can make shield 5 and spacing muscle 6 interference fit, improve the assembly stability of shield 5.

In one possible embodiment, the difference between the length of the connecting section 51 and the length of the latching region 61 is between 0 and 5mm, wherein the difference can be 0.1mm, 2.5mm, 4mm or 5 mm. When the difference is smaller than 0mm, after the shield 5 is assembled, the connecting section 51 has a moving space in the engaging region 61, the connecting section 51 is likely to relatively slide, and the assembling stability of the shield 5 is poor. When the difference is greater than 5mm, the connecting section 51 is long, and when the shielding member 5 is assembled, the connecting section 51 is not easily clamped into the clamping area 61, so that the assembling difficulty of the shielding member 5 is increased. By limiting the difference between the length of the connecting section 51 and the length of the engaging region 61 in the above range, the shield 5 and the limiting rib 6 can be assembled more stably, and the assembling stability of the shield 5 is improved.

In a possible embodiment, as shown in fig. 8, the connecting section 51 includes a guiding section 511 and a clamping section 512 which are connected to each other, the guiding section 511 is located on one side of the shielding member 5 close to the bottom wall of the housing 1, and the length of the guiding section 511 gradually increases from one end far away from the clamping section 512 to one end close to the clamping section 512.

It should be noted that, by providing the guiding segment 511, when assembling the shielding element 5, the guiding segment 511 can be firstly clamped into the clamping area 61, and then the clamping segment 512 is clamped into the clamping area 61, so that the assembly of the shielding element 5 is more convenient, and the assembly difficulty of the cooking apparatus 100 is reduced.

In a possible embodiment, as shown in fig. 6, a blocking rib 7 may be further disposed in the accommodating cavity 2, and the blocking rib 7 is located between the shielding member 5 and the control board 4. It will be appreciated that the orthographic projection of the rib 7 on the control panel 4 covers the orthographic projection of the shield 5 on the control panel 4.

Through setting up fender muscle 7, can set up the insulating part on the one hand between shield 5 and control panel 4, avoid shield 5 and control panel 4 contact, prevent the short circuit. On the other hand, since the blocking rib 7 is located on the side of the shielding member 5 close to the control board 4, the blocking rib 7 can support the shielding member 5 at the "back" of the shielding member 5, and the assembling stability of the shielding member 5 is improved. In addition, the blocking rib 7 can be an insulating part, and the blocking rib 7 and the shell 1 (the lower cover 13) can be integrally formed by injection molding, so that the assembling process of the blocking rib 7 can be reduced, and the manufacturing difficulty of the blocking rib 7 is reduced.

In one possible embodiment, the shield 5 comprises a magnetically resistive metal piece, such as a copper or aluminum sheet. Or, the shielding piece 5 comprises a copper foil or an aluminum foil, and the shielding piece 5 is attached to the blocking rib 7. Therefore, the arrangement modes of the shielding piece 5 are more, and the arrangement difficulty of the shielding piece 5 is reduced.

In the embodiment of the present application, the housing 1 includes an upper cover 11, a middle frame 12, and a lower cover 13, and the middle frame 12 connects the upper cover 11 and the lower cover 13. The control board 4 is located on the middle frame 12, and the shield 5 and the circuit board 3 are located on the bottom wall of the lower cover 13. In addition, the heating element 8 is located above the circuit board 3, a display panel 9 can be further disposed on one side of the middle frame 12 away from the accommodating cavity 2, the display panel 9 and the control panel 4 are oppositely disposed, and a user can operate the control panel 4 by touching the display panel 9.

It should be noted that the numerical values and numerical ranges related to the embodiments of the present application are approximate values, and there may be a certain range of errors depending on the manufacturing process, and those skilled in the art may consider these errors to be negligible.

A second aspect of the embodiments of the present application provides a cooking appliance including the cooker 100 described above and a pot placed on a heating surface of the cooker 100.

The application provides a cooking utensil, through set up shielding part 5 between circuit board 3 at cooking utensil 100 and control panel 4, can form electric field shielding wall one between circuit board 3 and control panel 4, prevented that the electric field signal that forceful electric power wire produced on the circuit board 3 from transmitting to control panel 4 to the at utmost has avoided circuit board 3 to control panel 4's interference, has guaranteed that control panel 4 can normally work, has improved cooking utensil 100 and cooking utensil's job stabilization nature.

In the description of the embodiments of the present application, it should be understood that the terms "mounted," "connected," and "connected" are intended to be construed broadly and may include, for example, a fixed connection, an indirect connection through intervening media, a communication between two elements, or an interaction between two elements, unless expressly stated otherwise or limited otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. The terms "upper," "lower," "front," "rear," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like refer to an orientation or positional relationship indicated in the drawings for convenience in describing the present application and to simplify description, but do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present application. In the description of the present application, "a plurality" means two or more unless specifically stated otherwise.

The terms "first," "second," "third," "fourth," and the like in the description and claims of this application and in the foregoing drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are, for example, capable of operation in sequences other than those illustrated or otherwise described herein. Moreover, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present application.

Claims (14)

1. A cooking device is characterized by comprising a shell (1), wherein the shell (1) is provided with an accommodating cavity (2), a circuit board (3) and a control board (4) are arranged in the accommodating cavity (2), and the circuit board (3) and the control board (4) are arranged at intervals; a shielding piece (5) is arranged between the circuit board (3) and the control board (4);

be provided with spacing muscle (6) on the diapire of casing (1), spacing muscle (6) have the spacing groove, at least part shield (5) card is established in the spacing groove.

2. The cooking apparatus according to claim 1, wherein the circuit board (3) has an arrangement area thereon, and the electric power lines on the circuit board (3) are located in the arrangement area;

the orthographic projection of the shielding piece (5) on the control board (4) covers the orthographic projection of the arrangement area on the control board (4).

3. The cooking apparatus according to claim 1, wherein there is a gap between the shield (5) and the circuit board (3) and between the shield (5) and the control board (4).

4. The cooking apparatus according to claim 3, wherein a gap between the shield (5) and the circuit board (3) is larger than a gap between the shield (5) and the control board (4).

5. Cooking apparatus according to claim 3, characterised in that the gap between the shield (5) and the circuit board (3) is between 5-30 mm;

and/or the clearance between the shielding piece (5) and the control board (4) is between 1.5 and 30 mm.

6. Cooking apparatus according to any of claims 1-4, characterised in that the shield (5) is detachably connected to the housing (1).

7. The cooking device according to claim 6, wherein the number of the limiting ribs (6) is two, two limiting ribs (6) are symmetrically arranged at two ends of the shielding member (5), limiting grooves of the two limiting ribs (6) jointly form a clamping area (61), and at least part of the shielding member (5) is positioned in the clamping area (61).

8. The cooking apparatus according to claim 7, wherein the shield (5) comprises a connecting section (51), the connecting section (51) being located within the snap-fit region (61); the length of the connecting section (51) is not less than the length of the clamping area (61).

9. Cooking apparatus according to claim 8, characterised in that the length of the connecting section (51) differs from the length of the engagement zone (61) by a value between 0 and 5 mm.

10. The cooking apparatus according to claim 8, wherein the connecting section (51) comprises a guiding section (511) and a clamping section (512) which are connected with each other, the guiding section (511) is located on one side of the shielding member (5) close to the bottom wall of the housing (1), and the length of the guiding section (511) is gradually increased from one end far away from the clamping section (512) to one end close to the clamping section (512).

11. The cooking apparatus according to any one of claims 1 to 5, wherein a rib (7) is provided on a bottom wall of the housing (1), the rib (7) being located between the shield (5) and the control panel (4);

the blocking rib (7) is an insulating part, and the blocking rib (7) and the shell (1) are integrally formed.

12. The cooking apparatus according to claim 11, wherein the shield (5) comprises a magnetic-resistant metal member, or wherein the shield (5) comprises a copper foil or an aluminum foil, and wherein the shield (5) is attached to the rib (7).

13. The cooking apparatus according to any one of claims 1 to 5, wherein the housing (1) comprises an upper cover (11), a middle frame (12) and a lower cover (13), the middle frame (12) connecting the upper cover (11) and the lower cover (13); the control panel (4) is located on the middle frame (12), and the shielding piece (5) and the circuit board (3) are located on the lower cover (13).

14. A cooking appliance characterized by comprising a cooker as claimed in any one of claims 1 to 13.

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