CN110881844A

CN110881844A - Cooking appliance

Info

Publication number: CN110881844A
Application number: CN201811053351.3A
Authority: CN
Inventors: 王黎喆; 方小林; 曹骥; 斯蒂芬·菲格莱因
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2018-09-11
Filing date: 2018-09-11
Publication date: 2020-03-17

Abstract

The invention relates to a cooking appliance, which comprises a panel positioned on the front side surface of the cooking appliance, a top plate arranged below the panel and a panel driving mechanism capable of driving the panel to move towards the upper part of the front side; the front end of the panel driving mechanism is connected with the panel, and the rear part of the panel driving mechanism is arranged on the top plate; in the driven open state of the panel, the bottom edge of the panel is higher than or flush with the top edge of the panel in the reset state. The panel of the cooking appliance can be opened and reset under the drive of the panel driving mechanism, and in a fully opened state, the panel is positioned at the upper position of the front side, wherein the upper position of the front side refers to the direction close to a user and the upward direction; the panel after opening is higher than the position under its reset state, can not cause the interference to getting of equipment such as water tank, and the operation of getting of water tank is more comfortable, safety.

Description

Cooking appliance

Technical Field

The invention relates to the technical field of cooking appliances such as steam boxes and ovens, in particular to a cooking appliance with a steam function.

Background

With the continuous improvement of the life quality of people, kitchen appliances are more and more abundant, and microwave ovens, steam boxes and the like gradually become necessary kitchen electric products for family life. The kitchen electrical products not only have single functions, each product needs to occupy certain kitchen space, but also are separately purchased with high cost. In order to make efficient use of kitchen space and reduce purchase costs, all-in-one machines have been disclosed in the prior art that integrate the functions of a steam box with a microwave oven and/or an oven.

For example, a micro steaming and baking integrated machine disclosed in chinese patent No. 201320074461.4 (No. CN 203168920U), includes a body, a door frame and a controller installed on a front surface of the body, a cavity is provided in the body, a transformer is installed on a top of the body, a capacitor connected to the transformer, a magnetron connected to the capacitor, a waveguide box connected to the magnetron, microwaves are transmitted into the cavity through the waveguide box, a microwave stirrer is provided at a microwave inlet in the cavity, a low speed motor is connected to the microwave stirrer, a water container and a steam generator connected to the water container are installed on a side wall of the body, the steam generator is communicated with the cavity in the body, a heating pipe is provided on a top of the cavity in the body, and the heating pipe is connected to the controller. For example, in the integrated steam box and microwave oven disclosed in chinese patent application No. 201510457051.1 (application publication No. CN 105011740 a), a steam inlet is provided in a cooking chamber, and the steam inlet is communicated with a steam outlet of a steam generating device. As disclosed in chinese patent No. 201410167732.X (publication No. CN 103976641B), the steam outlet at the top of the evaporator of the steam box is communicated with the steam inlet at the back of the inner container, and the steam generated from the evaporator enters the inner container.

In the prior art, no matter the functions of the steam box and one or two of the microwave oven and the oven are combined together, a water tank is required to be placed in an electric appliance to provide high-temperature steam for a cooking space. Especially, in an embedded cooking appliance, the water tank is often placed above the cooking cavity, and a panel which can be opened and closed is arranged on the front side surface of the cooking appliance to cover the water tank. Owing to receive cupboard installation space's influence, the panel need be forward or the side direction is turned over and just can take out the water tank, if the panel side direction is turned over, then can make cooking appliance's use occupy great space, if the panel directly releases to the front side, then can lead to the inboard water tank of panel to be not convenient for get and put, consequently the mode of opening and shutting of these panels is all not suitable for practical use.

Disclosure of Invention

The invention aims to solve the technical problem of the prior art, and provides the cooking appliance which has a better opening and closing mode of a panel and is more convenient for taking and placing the water tank, the installation space requirement of the cooking appliance is lower, and the operation is more convenient and safer.

Another technical problem to be solved by the present invention is to provide a cooking appliance, which can make a panel move forward a certain distance and then move upward to expose a water tank, wherein the water tank can be directly taken out from the lower part of the panel, and the use is convenient.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a cooking appliance, includes the panel that is located the cooking appliance leading flank and sets up the roof in the panel below, its characterized in that: the panel driving mechanism can drive the panel to move towards the upper part of the front side;

the front end of the panel driving mechanism is connected with the panel, and the rear part of the panel driving mechanism is arranged on the top plate;

when the panel is driven to be in an open state, the bottom edge of the panel is higher than or flush with the top edge of the panel in a reset state.

In the above aspect, in the panel opened state after being driven, the top edge of the panel is inclined to the rear side with respect to the bottom edge.

Adopt such structure, be difficult to lead to the fact the interference to getting of water tank.

The panel driving mechanism of the present invention comprises

The sliding part is arranged on the top plate in a manner of moving back and forth;

the first end of the first connecting rod is rotatably connected to the rear end of the sliding part, and the second end of the first connecting rod extends forwards and is connected with the panel;

the guide piece is arranged on the top plate and is arranged close to the front port of the accommodating space, and a first guide groove matched with the motion track of the panel is formed in the guide piece; and

the first guide pillar is arranged on the side wall of the first connecting rod and is in guide fit with the first guide groove; and

and the driving mechanism is used for driving the sliding piece to move back and forth.

When the driving mechanism drives the sliding part to move forwards, the sliding part drives the first connecting rod to slide forwards, and the front part or the middle part of the first connecting rod can slide in the first guide groove of the guide part through the first guide pillar, so that along with the forward movement of the first connecting rod, the panel at the front end of the first connecting rod moves forwards firstly along with the motion track of the front end of the first connecting rod and then slides upwards, and the movement of the panel is realized.

In the above scheme, the movement track of the panel moving under the driving of the panel driving mechanism is in an L shape with a smoothly transitive bending part, and the shape of the first guide groove is matched with the L-shaped movement track. The front section moves forwards and upwards while providing a certain space for the panel to slide upwards, the rear section moves forwards and upwards while avoiding touching the outer wall of the installation space (such as the edge of a table board of a cabinet) in the moving process of the panel under the premise of keeping the displacement of the front section small, the included angle between the panel and the front port of the accommodation space is gradually increased from top to bottom in the process that the panel moves to the upper part of the accommodation space through the sliding process of the rear section, when the panel completely stays at the front upper part of the accommodation space, a proper included angle is kept between the lower part of the panel and the front port of the accommodation space, and on the basis that the panel keeps attractive appearance towards a user, the water tank installed in the accommodation space is more convenient to take out or put in. Of course, the motion track of the panel can also be in a manner of directly inclining upwards.

Preferably, the L-shaped motion trajectory comprises a horizontal segment, a vertical segment and an arc segment, the horizontal segment extends and is arranged on the top plate in a front-back direction, the vertical segment is vertically arranged at the front side of the horizontal segment, and the arc segment is connected between the horizontal segment and the vertical segment and is arched downwards. This structure provides conditions for the formation of the panel track and makes the entire movement stroke of the panel smooth.

Preferably, the first connecting rod is provided with a second guide groove which is close to the first end and is arranged along the length direction of the first connecting rod, and the side wall of the sliding part is provided with a second guide pillar which can be rotatably connected in the second guide groove and can slide back and forth along the guide groove. The structure provides a guide space for the relative rotation of the rear end of the first connecting rod, can reduce the moving resistance of the panel to a great extent, reduces the energy consumption of the driving mechanism and improves the sliding speed of the panel.

As an improvement, the panel motion structure further comprises a second connecting rod, a first end of the second connecting rod is rotatably connected with the side wall of the sliding part, a connecting point is located at the rear side of the first guide pillar, and a second end of the second connecting rod is rotatably connected to the first connecting rod through the first guide pillar. Because the guide can produce great reaction force to the first guide pillar of first connecting rod front end, if do not set up above-mentioned second connecting rod, then actuating mechanism will bear great anomalous force and the load is great, sets up above-mentioned second connecting rod, can effectively reduce actuating mechanism's load, makes the panel operation more smooth and easy, stable.

In order to enable the sliding part to slide smoothly, the outer side wall of the sliding part is provided with a guide part arranged along the length direction, correspondingly, the top plate is provided with a guide rail extending along the front and back direction, and the side part of the guide rail is provided with a third guide groove for the guide part to slide front and back. The rear end of the third guide groove is provided with a limiting column which can prevent the guide part from separating from the third guide groove.

Preferably, the driving mechanism comprises a motor and a gear and rack transmission assembly capable of connecting an output shaft of the motor with the sliding part.

Preferably, the gear and rack transmission assembly comprises two sliding parts which are respectively arranged on two sides of the top plate, the first rack is arranged on the sliding part on one side of the panel, the second rack is arranged on one side of the first rack and moves synchronously with the first rack, the first gear is connected with an output shaft of the motor and is in meshing transmission with the second rack, the second gear is in meshing transmission with the first rack, the third gear is connected with the second gear through a first connecting shaft and is in meshing transmission with the third rack, and the third rack is arranged on the sliding part on the other side of the panel. The top plate is provided with a support seat which is respectively arranged close to the two sliding parts, and two ends of the first connecting shaft can be respectively and rotatably supported on the support seat.

In order to facilitate assembly, a mounting groove for accommodating the second rack is formed in the sliding part on one side of the panel in an extending manner, the second rack is arranged in the mounting groove, and a first limiting part capable of preventing the second rack from sliding along the length direction of the mounting groove is further arranged on the mounting groove and the second rack. And a limiting opening is formed in the bottom wall of the second rack, correspondingly, a limiting block capable of being inserted into the limiting opening is formed by upwards extending the bottom of the mounting groove. And a second limiting part capable of preventing the second rack from upwards separating from the mounting groove is arranged on the outer side of the mounting groove. The mounting groove is formed into a U shape, a step lower than the upper edge of the mounting groove is formed on the outer side wall of the second rack, a pressing and holding portion capable of being pressed on the step is formed at the top of the second limiting piece, and the lower portion of the second limiting piece is buckled on the outer side wall of the mounting groove through a buckle.

Preferably, the gear and rack transmission assembly comprises a fourth rack, a fifth rack, a fourth gear, a fifth gear and a sixth gear, the two sliding parts are respectively arranged on two sides of the top plate, the fourth rack is arranged on the sliding part on one side of the panel, the fourth gear is connected with an output shaft of the motor and is in meshing transmission with the fifth gear, the fifth gear is in meshing transmission with the fourth rack and is connected with the sixth gear through a second connecting shaft, the sixth gear is in meshing transmission with the fifth rack, and the fifth rack is arranged on the sliding part on the other side of the panel.

Preferably, the two ends of the first guide groove are respectively provided with a clamping groove extending outwards, and a buffer piece capable of buffering the movement trend of the first guide pillar is arranged in the clamping groove. The buffer piece is provided with a positioning part which can be embedded in the clamping groove and a contact part which is positioned in the first guide groove and can be contacted with the first guide pillar, and the contact part is of an arc-shaped structure extending along the inner end face of the first guide groove. This structure can reduce the impact of guide to first guide pillar, improves spare part life, noise reduction.

Compared with the prior art, the panel of the cooking appliance can be opened and reset under the driving of the panel driving mechanism, and in a fully opened state, the panel is positioned at the upper position of the front side, and the upper position of the front side refers to the direction close to a user and the upward direction, so that the panel does not move towards two sides of the cooking appliance when being opened, the operation and use space of the two sides is not increased, and the requirement on the installation space of the cooking appliance is reduced;

meanwhile, the opened panel is higher than the position of the panel in the reset state, so that the space at the rear side of the panel in the reset state is completely exposed, an operation space is provided for the taking and placing operation of a water tank and other equipment in the cooking appliance, the interference caused by the taking and placing of the equipment such as the water tank is avoided, and the taking and placing operation of the water tank is more comfortable and safer.

Drawings

FIG. 1 is a schematic structural diagram illustrating an open state of a panel according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 from another angle;

FIG. 3 is a schematic view of an installation structure of the cooking appliance in the embodiment of the invention;

FIG. 4 is a schematic view of the panel moving structure (panel closed) in embodiment 1 of the present invention;

FIG. 5 is a schematic view of the structure of FIG. 4 from another angle;

fig. 6 is an assembly structure schematic view (exploded view) of a part of the driving mechanism and the sliding member in embodiment 1 of the present invention;

fig. 7 is an assembly structure diagram of a part of the driving mechanism and the sliding member in embodiment 1 of the present invention;

fig. 8 is a schematic structural view of a second rack in embodiment 1 of the present invention;

FIG. 9 is a partial structural view of embodiment 1 of the present invention;

FIG. 10 is a schematic view showing the structure of a guide member in embodiment 1 of the present invention;

fig. 11 is a schematic structural view of a buffer in embodiment 1 of the present invention;

fig. 12 is a schematic structural diagram of embodiment 2 of the present invention.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

Example 1:

referring to fig. 1 to 11, a preferred embodiment of a cooking appliance with a panel driving mechanism according to the present invention is shown. In this embodiment, the cooking appliance 10 has a cooking cavity 10a, and includes a top plate 1 and a water tank b disposed above the cooking cavity 10a, a panel 2 disposed on the front side of the water tank b, and a panel driving mechanism a for driving the panel 2 to move, where opening and closing of the panel 2 is for taking and placing operations of the water tank b mounted on the rear side thereof, and of course, the water tank b may be replaced by other devices required by the cooking appliance 10, such as seasoning boxes, and the like, see fig. 1-2; the cooking appliance 10 is installed in an installation space 20 provided in a cabinet, as shown in fig. 3, a portion of the installation space 20 above the top plate 1 is an accommodation space 100, the accommodation space 100 has a front port 101, a water tank b is disposed in the accommodation space 100, the panel 2 is vertically disposed at the position of the front port 101, and the panel 2 can be opened and reset by a panel driving mechanism a, so that the front port 101 can be opened or covered.

The panel driving mechanism a of the present embodiment can slide the panel 2 forward and upward relative to the accommodating space 100. The front end of the panel driving mechanism a is connected with the panel 2, the rear part of the panel driving mechanism a is arranged on the top plate 1, and the lower edge of the panel 2 is higher than or flush with the upper wall surface of the front port 101 of the accommodating space 100 when the panel driving mechanism a drives the panel 2 to open the front port 101 of the accommodating space 100. In the present embodiment, when the front port 101 of the accommodating space 100 is opened, the panel 2 rests on the front upper side of the accommodating space 100, and the panel 2 is gradually inclined backward from bottom to top. Such a structure is not easy to cause interference to the taking and placing of the water tank.

The panel driving mechanism a of the present embodiment includes a slider 4, a first link 5, a second link 6, a guide 7, a first guide post 8, and a driving mechanism 9. The sliding part 4 is arranged on the top plate 1 in a back-and-forth moving manner, the first end of the first connecting rod 5 is rotatably connected to the rear end of the sliding part 4, the second end of the first connecting rod 5 extends forwards and is connected with the panel 2, the guide 7 is arranged on the top plate 1 and is arranged close to the front port 101 of the accommodating space 100, the guide 7 is provided with a first guide groove 71 matched with the L-shaped moving track 3 of the panel 2, the first guide pillar 8 is arranged on the side wall of the first connecting rod 5 and is in guide fit with the first guide groove 71, and the driving mechanism 9 is used for driving the sliding part 4 to move back and forth.

The panel driving mechanism a of the present embodiment drives the panel 2 to move along an L-shaped movement track 3 with a smooth transition in the middle, and the shape of the first guide groove 71 matches with the L-shaped movement track 3. Such a motion trajectory enables the panel 2 to move forward and slide upward while moving forward a certain distance, the forward movement of the front section is to provide a certain space for the panel 2 to slide upward, the forward movement of the rear section is to prevent the panel 2 from touching the outer wall of the installation space 20 (e.g. the edge of the table top of the cabinet) during the movement of the front section while moving forward and sliding upward while keeping the displacement of the front section small, when the panel 2 moves to the upper part of the accommodating space 100 through the sliding process of the rear section, the included angle between the panel 2 and the front port 101 of the accommodating space 100 gradually increases from top to bottom, when the panel 2 is completely stopped at the front upper position of the accommodating space 100, a proper included angle is kept between the lower part of the panel 2 and the front port 101 of the accommodating space 100, the water tank 30 installed in the receiving space 100 is more easily taken out or put in, on the basis that the beauty of the panel 2 facing the user is maintained.

The L-shaped motion trail 3 comprises a horizontal section 31, a vertical section 32 and an arc section 33, wherein the horizontal section 31 extends forwards and backwards on the top plate 1, the vertical section 32 is vertically arranged at the front side of the horizontal section 31, and the arc section 33 is connected between the horizontal section 31 and the vertical section 32 and arches downwards. This structure provides conditions for the formation of the movement locus of the panel 2 and makes the entire movement stroke of the panel 2 smooth. It should be noted that the arrangement of the horizontal section 31 is not required to be completely matched with the horizontal plane, and the arrangement of the vertical section 32 is not required to be completely perpendicular to the horizontal plane, as long as the L-shaped movement track of the panel 2 can be realized. The vertical section 32 in this embodiment is disposed at a slightly forward inclined angle from bottom to top to reduce the force generated to the panel drive mechanism.

Two ends of the first guide groove 71 are respectively provided with a clamping groove 711 extending outwards, and a buffer member 72 capable of buffering the movement trend of the first guide post 8 is arranged in the clamping groove 711. The buffer member 72 has a positioning portion 721 capable of being inserted into the slot 711 and a contact portion 722 located in the first guide groove 71 and capable of contacting with the first guide post 8, and the contact portion 722 is formed in an arc structure extending along an inner end surface of the first guide groove 71, so that the impact of the guide member 7 on the first guide post 8 can be reduced, the service life of the component can be prolonged, and the noise can be reduced.

The first link 5 of this embodiment is provided with a second guide slot 51 near the first end and arranged along the length direction of the first link 5, and the side wall of the sliding member 4 is provided with a second guide post 41 which can be rotatably connected in the second guide slot 51 and can slide back and forth along the second guide slot 51. The first end of the second link 6 is rotatably connected to the side wall of the sliding member 4, and the connection point is located at the rear side of the first guide post 8, and the second end of the second link 6 is rotatably connected to the first link 5 through the first guide post 8. In actual use, the panel 2 can be moved without providing the second link 6, but since the guide 7 generates a large reaction force to the first guide post 8 at the front end of the first link 5, if the second link 6 is not provided, the driving mechanism 9 will bear a large irregular force and the load is large, and the provision of the second link 6 can effectively reduce the load of the driving mechanism 9, so that the panel 2 can be operated more smoothly and stably. In order to make the sliding member 4 slide smoothly, the outer side wall of the sliding member 4 is provided with a guide portion 42 arranged along the length direction, correspondingly, the top plate 1 is provided with a guide rail 11 extending along the front and back direction, and the side portion of the guide rail 11 is provided with a third guide groove 111 for the guide portion 42 to slide back and forth. The rear end of the third guide groove 111 is provided with a stopper post 112 capable of preventing the guide portion 42 from coming off the third guide groove 111.

In the present embodiment, two sliding members 4 are respectively disposed on two sides of the top plate 1, and each sliding member 4 is configured to a set of the first connecting rod 5 and the second connecting rod 6, so as to make the movement of the panel 2 smooth and stable. The driving mechanism 9 includes a motor 91 and a gear and rack transmission assembly 92 capable of connecting an output shaft of the motor 91 with the slider 4. The gear, rack drive assembly 92 includes first rack 921, second rack 922, third rack 923, first gear 924, second gear 925 and third gear 926, first rack 921 is located on the slider 4 of panel 2 one side, second rack 922 is located one side of first rack 921 and moves with first rack 921 synchronization, first gear 924 is connected with the output shaft of motor 91 and meshes the transmission with second rack 922, second gear 925 meshes the transmission with first rack 921 mutually, third gear 926 is connected with second gear 925 and meshes the transmission with third rack 923 through first connecting shaft 927, third rack 926 is located on the slider 4 of panel 2 opposite side. The top plate 1 is provided with support seats 928 disposed adjacent to the two sliders 4, respectively, and both ends of the first connecting shaft 927 are rotatably supported on the support seats 928, respectively. In order to facilitate assembly, the sliding member 4 on one side of the panel 2 extends towards the inner side of the top plate 1 to form an installation groove 43 for accommodating the second rack 925, the second rack 925 is arranged in the installation groove 43, the installation groove 43 and the second rack 922 are further provided with a first limiting member capable of preventing the second rack 922 from sliding along the length direction of the installation groove 43, a limiting opening 9221 is formed in the bottom wall of the second rack 922, correspondingly, the bottom of the installation groove 43 extends upwards to form a limiting block 431 capable of being inserted into the limiting opening 9221, and the limiting block 431 and the limiting opening 9221 jointly form the first limiting member. The second stopper 44 capable of preventing the second rack 922 from being separated from the mounting groove 43 upward is disposed outside the mounting groove 43. The mounting groove 43 is formed in a U shape, a step 9222 arranged lower than the upper edge of the mounting groove 43 is formed on the outer side wall of the second rack 922 close to the center of the top plate 1, a pressing and holding portion 441 capable of pressing and placing on the step 9222 is formed at the top of the second limiting member 44, and the lower portion of the second limiting member 44 is clamped on the buckle 432 on the outer side wall of the mounting groove 43 through the bayonet 442.

When the panel moving structure of this embodiment is used, and when the water tank 30 in the accommodating space 100 needs to be taken out, and the driving mechanism 9 drives the sliding member 4 to move forward, the sliding member 4 drives the first connecting rod 5 to slide forward, and because the front part or the middle part of the first connecting rod 5 can be limited in the first guide groove 71 of the guide member 7 by the first guide pillar 8 in a sliding manner, along with the forward movement of the first connecting rod 5, the panel 2 at the front end of the first connecting rod 5 moves forward and then slides upward along with the arc section 33 and the vertical section 32 in the movement track of the front end of the first connecting rod 5, so that the panel 2 stays at the upper front side of the accommodating space 100 at a certain angle, so as to take out the water tank 30; after the water tank is placed, the processes are carried out reversely, and the use is convenient.

Example 2:

this example differs from example 1 in that: the gear and rack transmission components have different structures.

As shown in fig. 12, the gear and rack transmission assembly 92 ' of the present embodiment includes a fourth rack 921 ', a fifth rack 922 ', a fourth gear 923 ', a fifth gear 924 ', and a sixth gear 925 ', wherein the fourth rack 921 ' is disposed on the slider 4 ' on one side of the panel 2 ', the fourth gear 921 ' is connected to the output shaft of the motor 91 ' and is engaged with the fifth gear 922 ', the fifth gear 922 ' is engaged with the fourth rack 921 ' and is connected to the sixth gear 925 ' through a second connecting shaft 926 ', the sixth gear 925 ' is engaged with the fifth rack 924 ', and the fifth rack 922 ' is disposed on the slider 4 ' on the other side of the panel 2 '.

The transmission structure between the motor and the slider according to the present invention is not limited to the gear and rack transmission assembly, and the gear and rack transmission assembly is not limited to the structures described in

embodiments

1 and 2, as long as the slider can move forward and backward.

Claims

1. The utility model provides a cooking appliance, includes panel (2) that are located the cooking appliance leading flank and roof (1) of setting in panel (2) below, its characterized in that: the panel driving mechanism (a) can drive the panel (2) to move towards the upper front side;

the front end of the panel driving mechanism (a) is connected with the panel (2), and the rear part of the panel driving mechanism (a) is arranged on the top plate (1);

when the panel (2) is driven to be in an open state, the bottom edge (21) of the panel (2) is higher than or flush with the top edge (22) of the panel (2) in a reset state.

2. The cooking appliance according to claim 1, wherein: when the panel (2) is driven to be opened, the top edge (22) of the panel (2) is inclined to the rear side relative to the bottom edge (21).

3. The cooking appliance according to claim 1, wherein: the panel driving mechanism (a) comprises

A sliding member (4) which is provided on the top plate (1) so as to be movable forward and backward;

the first end of the first connecting rod (5) is rotatably connected to the rear end of the sliding piece (4), and the second end of the first connecting rod (5) extends forwards and is connected with the panel (2);

the guide piece (7) is arranged on the top plate (1) and is close to a front port (101) of the accommodating space (100), and a first guide groove (71) matched with the motion track of the panel (2) is formed in the guide piece (7); and

the first guide post (8) is arranged on the side wall of the first connecting rod (5) and is in guide fit with the first guide groove (71); and

and the driving mechanism (9) is used for driving the sliding piece (4) to move back and forth.

4. The cooking appliance according to claim 3, wherein: the motion track (3) of the panel (2) moving under the driving of the panel driving mechanism (a) is in an L shape with a smooth transition at a bent part, and the shape of the first guide groove (71) is matched with the L-shaped motion track (3).

5. The cooking appliance according to claim 4, wherein: l shape movement track (3) include at horizontal segment (31), vertical section (32) and circular arc section (33), horizontal segment (31) extend around on roof (1) and arrange, vertical section (32) are vertical to be located the front side of horizontal segment (31), circular arc section (33) are connected between horizontal segment (31) and vertical section (32) and are arched downwards.

6. The cooking appliance according to claim 3, wherein: the first connecting rod (5) is provided with a second guide groove (51) which is close to the first end and is arranged along the length direction of the first connecting rod (5), and the side wall of the sliding part (4) is provided with a second guide pillar (41) which can be rotatably connected in the second guide groove (51) and can slide back and forth along the second guide groove (51).

7. The cooking appliance according to claim 3, wherein: the sliding device is characterized by further comprising a second connecting rod (6), wherein the first end of the second connecting rod (6) is rotatably connected with the side wall of the sliding part (4), the connecting point is located on the rear side of the first guide pillar (8), and the second end of the second connecting rod (6) is rotatably connected to the first connecting rod (5) through the first guide pillar (8).

8. The cooking appliance according to claim 3, wherein: the outer side wall of the sliding part (4) is provided with a guide part (42) arranged along the length direction, correspondingly, the top plate (1) is provided with a guide rail (11) extending forwards and backwards, and the side part of the guide rail (11) is provided with a third guide groove (111) for the guide part (42) to slide forwards and backwards.

9. The cooking appliance according to any one of claims 3 to 8, wherein: the driving mechanism (9) comprises a motor (91) and a gear and rack transmission assembly (92) which can connect the output shaft of the motor (91) with the sliding piece (4).

10. The cooking appliance according to claim 9, wherein: the gear and rack transmission assembly (92) comprises a first rack (921), a second rack (922), a third rack (923), a first gear (924), a second gear (925) and a third gear (926), wherein the two sliding parts (4) are respectively arranged at two sides of the top plate (1), the first rack (921) is arranged on the sliding part (4) at one side of the panel (2), the second rack (925) is arranged at one side of the first rack (921) and synchronously moves with the first rack (921), the first gear (924) is connected with an output shaft of the motor (91) and is meshed with the second rack (922), the second gear (925) is meshed with the first rack (921) for transmission, the third gear (926) is connected with the second gear (925) through a first connecting shaft (927) and is meshed with the third rack (923) for transmission, the third rack (923) is arranged on the sliding piece (4) on the other side of the panel (1).

11. The cooking appliance according to claim 10, wherein: a sliding piece (4) on one side of the panel (2) extends towards one side to form a mounting groove (43) for accommodating a second rack (922), the second rack (922) is arranged in the mounting groove (43), and a first limiting piece capable of preventing the second rack (922) from sliding along the length direction of the mounting groove (43) is further arranged on the mounting groove (43) and the second rack (922).

12. The cooking appliance according to claim 11, wherein: and a second limiting piece (44) capable of preventing the second rack (922) from being separated from the mounting groove (43) upwards is arranged on the outer side of the mounting groove (43).

13. The cooking appliance according to claim 11, wherein: the mounting groove (43) is formed into a U shape, a step (9222) which is lower than the upper edge of the mounting groove (43) and is arranged is formed on the outer side wall of the second rack (922), a pressing and holding part (431) which can be pressed on the step (9222) is formed at the top of the second limiting part (44), and the lower part of the second limiting part (44) is buckled on the outer side wall of the mounting groove (43) through a buckle.

14. The cooking appliance according to claim 9, wherein: the gear and rack transmission assembly (92 ') comprises four racks (921'), a fifth rack (922 '), a fourth gear (923'), a fifth gear (924 ') and a sixth gear (925'), the sliding pieces (4 ') are two and are respectively arranged on two sides of the top plate, the fourth rack (921') is arranged on the sliding piece (4 ') on one side of the panel, the fourth gear (923') is connected with an output shaft of the motor (91 ') and is in meshed transmission with the fifth gear (924'), the fifth gear (924 ') is in meshed transmission with the fourth rack (921') and is connected with the sixth gear (925 ') through a second connecting shaft (926'), the sixth gear (926 ') is in meshed transmission with the fifth rack (922'), and the fifth rack (922 ') is arranged on the sliding piece (4') on the other side of the panel.

15. The cooking appliance according to any one of claims 3 to 8, wherein: clamping grooves (711) extending outwards are formed in two ends of the first guide groove (71), and buffering parts (72) capable of buffering the movement trend of the first guide column (8) are arranged in the clamping grooves (711).

16. The cooking appliance according to claim 15, wherein: the buffer piece (72) is provided with a positioning part (721) capable of being embedded in the clamping groove (711) and a contact part (722) which is positioned in the first guide groove (71) and capable of being in contact with the first guide post (8), and the contact part (722) is in an arc-shaped structure extending along the inner end face of the first guide groove (71).