A cooking appliance

Abstract

The present invention relates to a cooking appliance, comprising a panel located on the front side of the cooking appliance, a top plate arranged below the panel, and a panel driving mechanism capable of driving the panel to move toward the front and top; the front end of the panel driving mechanism is connected to the panel, and the rear of the panel driving mechanism is arranged on the top plate; when the panel is in an open state after being driven, the bottom edge of the panel is higher than or flush with the top edge of the panel in a reset state. The panel of the cooking appliance of the present invention can be opened and reset under the drive of the panel driving mechanism. In a fully opened state, the panel is located at a position above the front side, and the position above the front side refers to a direction close to a user and an upward direction. When the panel is opened, it does not move to the sides of the cooking appliance, does not increase the operating space on both sides, and reduces the installation space requirement of the cooking appliance; the panel after opening is higher than its position in the reset state, does not interfere with the placement and retrieval of equipment such as a water tank, and the placement and retrieval operation of the water tank is more comfortable and safe.

Description

Technical Field

[0001] The invention relates to the technical field of cooking appliances such as steamers and ovens, in particular to cooking appliances with a steaming function. Background Art

[0002] As people's quality of life continues to improve, kitchen appliances are becoming more and more abundant, and microwave ovens, ovens, steamers, etc. have gradually become essential kitchen appliances for family life. These kitchen appliances not only have relatively single functions, but each product requires a certain amount of kitchen space, and the cost of purchasing them separately is high. In order to effectively utilize kitchen space and reduce purchase costs, currently, the prior art has disclosed an all-in-one machine that integrates the functions of a steamer with a microwave oven and / or an oven.

[0003] For example, the "Microwave Steamer and Oven" disclosed in the Chinese patent with patent number 201320074461.4 (authorization announcement number CN 203168920 U) includes a body, a door frame and a controller installed on the front of the body, a cavity in the body, a transformer installed on the top of the body, a capacitor connected to the transformer, a magnetron connected to the capacitor, and a waveguide box connected to the magnetron, microwaves are transmitted into the cavity through the waveguide box, a microwave agitator is arranged at the microwave inlet in the cavity, a low-speed motor is connected to the microwave agitator, a water container and a steam generator connected to the water container are installed on the side wall of the body, the steam generator is communicated with the cavity in the body, a heating tube is arranged on the top of the cavity in the body, and the heating tube is connected to the controller. For example, the Chinese patent application with application number 201510457051.1 (application publication number CN 105011740 A) discloses a steam oven and microwave oven integrated with a steam inlet on the cooking chamber, which is connected to the steam outlet of the steam generating device. Another example is the Chinese patent with patent number 201410167732.X (authorization announcement number CN 103976641 B) discloses a steam oven with a water tank on top, in which the steam outlet on the top of the evaporator of the steam oven is connected to the steam inlet on the back of the inner pot, and the steam is generated from the evaporator and enters the inner pot.

[0004] In the prior art, whether the steamer is combined with one or both of the functions of a microwave oven and an oven, a water tank needs to be placed in the appliance to provide high-temperature steam for the cooking space. In particular, in embedded cooking appliances, the water tank is often placed above the cooking cavity, and an openable panel is provided on the front side of the cooking appliance to cover the water tank. Due to the influence of the cabinet installation space, the panel needs to be flipped forward or sideways to take out the water tank. If the panel is flipped sideways, the cooking appliance will occupy a larger space. If the panel is pushed forward directly, it will make it difficult to take the water tank inside the panel. Therefore, these panel opening and closing methods are not suitable for practical use. Summary of the invention

[0005] The technical problem to be solved by the present invention is to provide a cooking appliance with a better panel opening and closing method and more convenient water tank taking and placing operation in view of the current status of the prior art. The cooking appliance has lower installation space requirements and is more convenient and safer to operate.

[0006] Another technical problem to be solved by the present invention is to provide a cooking appliance with a panel that can be moved forward a certain distance and then shifted upward to expose a water tank. The water tank can be directly taken out from under the panel, which is convenient to use.

[0007] The technical solution adopted by the present invention to solve the above technical problems is: a cooking appliance, comprising a panel located on the front side of the cooking appliance and a top plate arranged below the panel, characterized in that: it also comprises a panel driving mechanism capable of driving the panel to move toward the upper front side;

[0008] The front end of the panel driving mechanism is connected to the panel, and the rear part of the panel driving mechanism is arranged on the top plate;

[0009] When the panel is in the opened state after being driven, the bottom edge of the panel is higher than or flush with the top edge of the panel in the reset state.

[0010] In the above solution, when the panel is driven and opened, the top edge of the panel is inclined toward the rear side relative to the bottom edge.

[0011] With such a structure, it is not easy to interfere with the taking and placing of the water tank.

[0012] The panel driving mechanism of the present invention comprises

[0013] A sliding member is disposed on the top plate so as to be movable forward and backward;

[0014] A first connecting rod, a first end of which is rotatably connected to a rear end of the sliding member, and a second end of which extends forward and is connected to a panel;

[0015] A guide member, disposed on the top plate and close to the front end of the accommodating space, the guide member being provided with a first guide groove matching the movement trajectory of the panel; and

[0016] A first guide post, disposed on a side wall of the first connecting rod and guidingly matched with the first guide groove; and

[0017] The driving mechanism is used to drive the sliding member to move forward and backward.

[0018] When the driving mechanism drives the sliding member to move forward, the sliding member drives the first connecting rod to slide forward. Since the front part or the middle part of the first connecting rod can be slidably limited in the first guide groove of the guide member through the first guide column, as the first connecting rod moves forward, the panel at the front end of the first connecting rod moves forward and then slides upward along the movement trajectory of the front end of the first connecting rod, thereby realizing the movement of the panel.

[0019] In the above scheme, the movement trajectory of the panel driven by the panel driving mechanism is L-shaped with a smooth transition at the bend, and the shape of the first guide groove matches the above L-shaped movement trajectory. Such a movement trajectory enables the panel to move forward and slide upward after moving forward for a certain distance. The forward movement process of the front section is to provide a certain space for the panel to slide upward, and the process of the rear section moving forward and sliding upward is to avoid the panel from hitting the outer wall of the installation space (such as the edge of the countertop of the cabinet) during the movement process while keeping the displacement of the front section small. In the process of the panel moving to the upper part of the accommodating space through the sliding process of the rear section, the angle between the panel and the front end of the accommodating space gradually increases from top to bottom. When the panel completely stays in the front upper position of the accommodating space, a suitable angle is maintained between the lower part of the panel and the front end of the accommodating space. On the basis of the panel facing the user to maintain beauty, it is more convenient to take out or put in the water tank installed in the accommodating space. Of course, the movement trajectory of the panel can also be directly tilted upward.

[0020] Preferably, the L-shaped motion track includes a horizontal section, a vertical section and an arc section, the horizontal section extends forward and backward on the top plate, the vertical section is vertically arranged in front of the horizontal section, and the arc section is connected between the horizontal section and the vertical section and arches downward. This structure provides conditions for the formation of the panel track and makes the entire motion stroke of the panel smooth.

[0021] Preferably, the first connecting rod is provided with a second guide groove near the first end and arranged along the length direction of the first connecting rod, and the side wall of the sliding member is provided with a second guide column that can be rotatably connected to the second guide groove and slide back and forth along the guide groove. This structure provides a guide space for the relative rotation of the rear end of the first connecting rod, which can greatly reduce the movement resistance of the panel, reduce the energy consumption of the driving mechanism, and increase the sliding speed of the panel.

[0022] As an improvement, the panel movement structure further includes a second connecting rod, the first end of which is rotatably connected to the side wall of the sliding member and the connection point is located at the rear side of the first guide column, and the second end of the second connecting rod is rotatably connected to the first connecting rod through the first guide column. Since the guide member will generate a large reaction force on the first guide column at the front end of the first connecting rod, if the second connecting rod is not provided, the driving mechanism will be subjected to a large irregular force and a large load. The provision of the second connecting rod can effectively reduce the load of the driving mechanism and make the panel run more smoothly and stably.

[0023] In order to make the sliding part slide smoothly, a guide part arranged along the length direction is provided on the outer side wall of the sliding part, and correspondingly, a guide rail extending forward and backward is provided on the top plate, and a third guide groove for the guide part to slide forward and backward is provided on the side of the guide rail. A limiting column capable of preventing the guide part from escaping from the third guide groove is provided at the rear end of the third guide groove.

[0024] Preferably, the driving mechanism comprises a motor and a gear and rack transmission assembly capable of connecting the output shaft of the motor with the sliding member.

[0025] Further preferably, the gear and rack transmission assembly includes a first rack, a second rack, a third rack, a first gear, a second gear and a third gear, the sliding members are two and are arranged on both sides of the top plate respectively, the first rack is arranged on the sliding member 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 to the output shaft of the motor and meshes with the second rack for transmission, the second gear meshes with the first rack for transmission, the third gear is connected to the second gear through the first connecting shaft and meshes with the third rack for transmission, and the third rack is arranged on the sliding member on the other side of the panel. Support seats are arranged on the top plate respectively close to the two sliding members, and the two ends of the above-mentioned first connecting shaft are rotatably supported on the support seats.

[0026] In order to facilitate assembly, the sliding member on one side of the panel extends to one side to form a mounting groove for accommodating the second rack, and the second rack is arranged in the mounting groove. The mounting groove and the second rack are also provided with a first limiter that can prevent the second rack from sliding along the length direction of the mounting groove. A limit opening is provided on the bottom wall of the second rack, and correspondingly, a limit block that can be inserted into the limit opening is extended upward from the bottom of the mounting groove. A second limiter that can prevent the second rack from escaping from the mounting groove upward is provided on the outer side of the mounting groove. The mounting groove is formed in a U shape, and a step arranged lower than the upper edge of the mounting groove is formed on the outer side wall of the second rack, and a pressing portion that can be pressed on the step is formed on the top of the second limiter, and the lower part of the second limiter is buckled on the outer side wall of the mounting groove by a buckle.

[0027] Preferably, the gear and rack transmission assembly includes a fourth rack, a fifth rack, a fourth gear, a fifth gear, and a sixth gear. There are two sliding members and they are respectively arranged on both sides of the top plate. The fourth rack is provided on the sliding member on one side of the panel. The fourth gear is connected to the output shaft of the motor and meshes with the fifth gear for transmission. The fifth gear meshes with the fourth rack for transmission and is connected to the sixth gear through the second connecting shaft. The sixth gear meshes with the fifth rack for transmission. The fifth rack is provided on the sliding member on the other side of the panel.

[0028] Preferably, both ends of the first guide groove are provided with a clamping groove extending outward, and a buffering member capable of buffering the movement trend of the first guide post is arranged in the clamping groove. The buffering member has a positioning portion that can be embedded in the clamping groove and a contact portion that is located in the first guide groove and can contact the first guide post, and the contact portion is formed into an arc structure extending along the inner end surface of the first guide groove. This structure can reduce the impact of the guide member on the first guide post, increase the service life of the components, and reduce noise.

[0029] Compared with the prior art, the panel of the cooking appliance of the present invention can be opened and reset under the drive of the panel driving mechanism. In the fully opened state, the panel is located at the upper front position, which refers to the direction close to the user and the upper direction. In this way, the panel does not move to the sides of the cooking appliance when it is opened, does not increase the operation space on both sides, and reduces the installation space requirement of the cooking appliance.

[0030] At the same time, the opened panel is higher than its position in the reset state, so that the space behind the panel in the reset state is completely exposed, providing operating space for the removal and placement of water tanks and other equipment in the cooking appliance, and will not cause interference with the removal and placement of water tanks and other equipment, making the removal and placement of water tanks more comfortable and safer. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 Schematic diagram of the structure of the panel in the open state according to an embodiment of the present invention;

[0032] Figure 2 for Figure 1 A schematic diagram of the structure from another angle;

[0033] Figure 3 Schematic diagram of the installation structure of the cooking appliance in an embodiment of the present invention;

[0034] Figure 4 Schematic diagram of the panel movement structure in Example 1 of the present invention (panel closed);

[0035] Figure 5 for Figure 4 A schematic diagram of the structure from another angle;

[0036] Figure 6 It is a schematic diagram (exploded diagram) of the assembly structure of part of the driving mechanism and the sliding member in Example 1 of the present invention;

[0037] Figure 7 It is a schematic diagram of the assembly structure of part of the driving mechanism and the sliding member in Example 1 of the present invention;

[0038] Figure 8 is a schematic structural diagram of the second rack in Example 1 of the present invention;

[0039] Fig. 9 This is a partial structural diagram of Embodiment 1 of the present invention;

[0040] Fig.10 Schematic diagram of the structure of the guide member in Example 1 of the present invention;

[0041] Fig.11 is a schematic structural diagram of a buffer member in Embodiment 1 of the present invention;

[0042] Fig.12 This is a schematic diagram of the structure of Example 2 of the present invention. DETAILED DESCRIPTION

[0043] The present invention is further described in detail below with reference to the accompanying drawings.

[0044] Embodiment 1:

[0045] like Figures 1 to 11 FIG. 1 is a preferred embodiment of a cooking appliance with a panel drive mechanism of the present invention. In this embodiment, the cooking appliance 10 has a cooking cavity 10a, including a top plate 1 and a water tank b disposed above the cooking cavity 10a, a panel 2 disposed in front of the water tank b, and a panel drive mechanism a for driving the panel 2 to move. The panel 2 is opened and closed for the purpose of taking and placing the water tank b installed at the rear thereof. Of course, the water tank b can also be replaced with other equipment required by the cooking appliance 10, such as a condiment box, etc., see FIG. Figure 1-2 The cooking appliance 10 is installed in the installation space 20 provided by the cabinet, see Figure 3 As shown, the portion of the installation space 20 located above the top plate 1 is the accommodating space 100, and the accommodating space 100 has a front port 101. The water tank b is arranged in the accommodating space 100, and the panel 2 is vertically arranged at the position of the front port 101. The panel 2 can be opened and reset under the drive of the panel driving mechanism a, so that the front port 101 can be opened or covered.

[0046] The panel drive mechanism a of this embodiment can make the panel 2 slide forward and upward relative to the accommodating space 100. The front end of the panel drive mechanism a is connected to the panel 2, and the rear part of the panel drive mechanism a is arranged on the top plate 1. When the panel drive mechanism a drives the panel 2 to open the front port 101 of the accommodating space 100, the lower edge of the panel 2 is higher than the upper wall surface of the front port 101 of the accommodating space 100 or is flush with the upper wall surface. In this embodiment, when the front port 101 of the accommodating space 100 is opened, the panel 2 is docked at the front upper part of the accommodating space 100, and the panel 2 gradually tilts backward from bottom to top. Such a structure is not easy to interfere with the taking and placing of the water tank.

[0047] The panel driving mechanism a of this embodiment includes a sliding member 4, a first connecting rod 5, a second connecting rod 6, a guide member 7, a first guide column 8 and a driving mechanism 9. Among them, the sliding member 4 is arranged 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 member 4, the second end of the first connecting rod 5 extends forward and is connected to the panel 2, the guide member 7 is arranged on the top plate 1 and is arranged near the front end 101 of the accommodating space 100, the guide member 7 is provided with a first guide groove 71 matching the L-shaped motion track 3 of the panel 2, the first guide column 8 is arranged on the side wall of the first connecting rod 5 and is guided and matched with the first guide groove 71, and the driving mechanism 9 is used to drive the sliding member 4 to move forward and backward.

[0048] The panel driving mechanism a of this embodiment drives the panel 2 to move in an L-shaped motion trajectory 3 with a smooth transition in the middle, and the shape of the first guide groove 71 matches the L-shaped motion trajectory 3. Such a motion trajectory enables the panel 2 to move forward and slide upward after moving forward for a certain distance. The forward movement process of the front section is to provide a certain space for the panel 2 to slide upward, and the process of the rear section moving forward and sliding upward is to prevent the panel 2 from hitting the outer wall of the installation space 20 (such as the edge of the countertop of the cabinet) during the movement process while keeping the displacement of the front section small. In the process of the panel 2 moving to the upper part of the accommodating space 100 through the sliding process of the rear section, the angle between the panel 2 and the front end 101 of the accommodating space 100 gradually increases from top to bottom. When the panel 2 completely stays at the front upper position of the accommodating space 100, a suitable angle is maintained between the lower part of the panel 2 and the front end 101 of the accommodating space 100. On the basis of the panel 2 facing the user and maintaining beauty, it is more convenient to take out or put in the water tank 30 installed in the accommodating space 100.

[0049] The L-shaped motion track 3 includes a horizontal section 31, a vertical section 32 and an arc section 33. The horizontal section 31 is arranged to extend forward and backward 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 downward. This structure provides conditions for the formation of the motion track of the panel 2 and makes the entire motion stroke of the panel 2 smooth. It should be noted that the arrangement of the horizontal section 31 does not require to be completely consistent with the horizontal plane, and the arrangement of the vertical section 32 does not require to be completely perpendicular to the horizontal plane, as long as the L-shaped motion track of the panel 2 can be realized. The vertical section 32 in this embodiment is arranged at an angle slightly tilted forward from bottom to top to reduce the force applied to the panel drive mechanism.

[0050] Both ends of the first guide groove 71 are provided with a clamping groove 711 extending outwards, and a buffering member 72 is arranged in the clamping groove 711 to buffer the movement trend of the first guide column 8. The buffering member 72 has a positioning portion 721 that can be embedded in the clamping groove 711 and a contact portion 722 that is located in the first guide groove 71 and can contact the first guide column 8. The contact portion 722 is formed into an arc structure extending along the inner end surface of the first guide groove 71, which can reduce the impact of the guide member 7 on the first guide column 8, improve the service life of the components, and reduce noise.

[0051] The first connecting rod 5 of this embodiment is provided with a second guide groove 51 close to the first end and arranged along the length direction of the first connecting rod 5, and the side wall of the sliding member 4 is provided with a second guide post 41 which can be rotatably connected to the second guide groove 51 and slide back and forth along the second guide groove 51. The first end of the second connecting rod 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 connecting rod 6 is rotatably connected to the first connecting rod 5 through the first guide post 8. In actual use, the movement of the panel 2 can be achieved without the second connecting rod 6. However, since the guide member 7 will generate a large reaction force on the first guide post 8 at the front end of the first connecting rod 5, if the second connecting rod 6 is not provided, the driving mechanism 9 will be subjected to a large irregular force and a large load. The provision of the second connecting rod 6 can effectively reduce the load of the driving mechanism 9, making the operation of the panel 2 smoother and more stable. In order to make the sliding member 4 slide smoothly, a guide portion 42 arranged along the length direction is provided on the outer side wall of the sliding member 4, and correspondingly, a guide rail 11 extending forward and backward is provided on the top plate 1, and a third guide groove 111 is provided on the side of the guide rail 11 for the guide portion 42 to slide forward and backward. A limiting column 112 is provided at the rear end of the third guide groove 111 to prevent the guide portion 42 from being separated from the third guide groove 111.

[0052] In this embodiment, there are two slide members 4, which are arranged on both sides of the top plate 1, and each slide member 4 is paired with a set of first connecting rod 5 and second connecting rod 6, so that the panel 2 moves smoothly and stably. The driving mechanism 9 includes a motor 91 and a gear and rack transmission assembly 92 that can connect the output shaft of the motor 91 to the slide member 4. The gear and rack transmission assembly 92 includes 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. The first rack 921 is arranged on the sliding member 4 on one side of the panel 2. The second rack 922 is arranged on one side of the first rack 921 and moves synchronously with the first rack 921. The first gear 924 is connected to the output shaft of the motor 91 and meshes with the second rack 922 for transmission. The second gear 925 meshes with the first rack 921 for transmission. The third gear 926 is connected to the second gear 925 through the first connecting shaft 927 and meshes with the third rack 923 for transmission. The third rack 926 is arranged on the sliding member 4 on the other side of the panel 2. Support seats 928 arranged close to the two sliding members 4 are arranged on the top plate 1. The two ends of the first connecting shaft 927 are rotatably supported on the support seats 928. In order to facilitate assembly, the sliding member 4 on one side of the panel 2 extends toward the inner side of the top plate 1 to form a mounting groove 43 for accommodating the second rack 925. The second rack 925 is arranged in the mounting groove 43. The mounting groove 43 and the second rack 922 are also provided with a first stopper that can prevent the second rack 922 from sliding along the length direction of the mounting groove 43. A stopper opening 9221 is provided on the bottom wall of the second rack 922. Correspondingly, a stopper block 431 that can be inserted into the stopper opening 9221 is extended upward from the bottom of the mounting groove 43. The stopper block 431 and the stopper opening 9221 together constitute the above-mentioned first stopper. A second stopper 44 that can prevent the second rack 922 from upwardly detaching from the mounting groove 43 is provided on the outer side of the mounting groove 43. The mounting groove 43 is formed in a U shape, and a step 9222 arranged lower than the upper edge of the mounting groove 43 is formed on the outer wall of the second rack 922 close to the center of the top plate 1. A pressing portion 441 that can be pressed on the step 9222 is formed on the top of the second limiting member 44, and the lower part of the second limiting member 44 is clamped on the buckle 432 of the outer wall of the mounting groove 43 through the bayonet 442.

[0053] When using the panel movement structure of this embodiment, when it is necessary to take out the water tank 30 in the accommodating space 100, the driving mechanism 9 drives the sliding member 4 to move forward, and the sliding member 4 drives the first connecting rod 5 to slide forward. Since the front or middle part of the first connecting rod 5 can be slidably limited in the first guide groove 71 of the guide member 7 through the first guide column 8, as the first connecting rod 5 moves forward, the panel 2 at the front end of the first connecting rod 5 moves forward along the arc segment 33 and the vertical segment 32 in the movement trajectory of the front end of the first connecting rod 5 and then slides upward, so that the panel 2 stays at a certain angle on the upper front side of the accommodating space 100 to facilitate the removal of the water tank 30; after the water tank is placed, the above process is reversed, which is easy to use.

[0054] Embodiment 2:

[0055] The difference between this embodiment and embodiment 1 is that the structures of the gear and rack transmission components are different.

[0056] like Fig.12 As shown, the gear and rack transmission assembly 92' of this embodiment includes a fourth rack 921', a fifth rack 922', a fourth gear 923', a fifth gear 924', and a sixth gear 925'. The fourth rack 921' is arranged on the sliding member 4' on one side of the panel 2', the fourth gear 921' is connected to the output shaft of the motor 91' and is meshed with the fifth gear 922' for transmission, the fifth gear 922' is meshed with the fourth rack 921' for transmission and is connected to the sixth gear 925' through the second connecting shaft 926', the sixth gear 925' is meshed with the fifth rack 924' for transmission, and the fifth rack 922' is arranged on the sliding member 4' on the other side of the panel 2'.

[0057] It should be noted that the transmission structure between the motor and the sliding member of 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 listed in Example 1 and Example 2, as long as the forward and backward movement of the sliding member can be achieved.

Claims

1. A cooking appliance, comprising a panel (2) located on the front side of the cooking appliance and a top plate (1) arranged below the panel (2), characterized in that: It also includes a panel driving mechanism (a) capable of driving the panel (2) to move toward the upper front side; The front end of the panel driving mechanism (a) is connected to 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 in an open state after being driven, a bottom edge (21) of the panel (2) is higher than or flush with a top edge (22) of the panel (2) in a reset state; The panel driving mechanism (a) comprises: A sliding member (4) is disposed on the top plate (1) so as to be movable forward and backward; a first connecting rod (5), wherein a first end of the first connecting rod (5) is rotatably connected to a rear end of the sliding member (4), and a second end of the first connecting rod (5) extends forward and is connected to the panel (2); A guide member (7) is provided on the top plate (1) and arranged close to a front port (101) of the accommodating space (100), wherein the guide member (7) is provided with a first guide groove (71) matching the movement trajectory of the panel (2); and A first guide column (8) is provided on the side wall of the first connecting rod (5) and is in guiding cooperation with the first guide groove (71); and A driving mechanism (9) for driving the sliding member (4) to move forward and backward; The driving mechanism (9) comprises a motor (91) and a gear and rack transmission assembly (92) capable of connecting the output shaft of the motor (91) to the sliding member (4); 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); the sliding member (4) is two and is arranged on both sides of the top plate (1), respectively; the first rack (921) is arranged on the sliding member (4) on one side of the panel (2); The second rack (922) is arranged on one side of the first rack (921) and moves synchronously with the first rack (921); the first gear (924) is connected to the output shaft of the motor (91) and meshes with the second rack (922) for transmission; the second gear (925) meshes with the first rack (921) for transmission; the third gear (926) is connected to the second gear (925) through the first connecting shaft (927) and meshes with the third rack (923) for transmission; the third rack (923) is arranged on the sliding member (4) on the other side of the panel (2); The sliding member (4) on one side of the panel (2) extends to one side to form a mounting groove (43) for accommodating the second rack (922), the second rack (922) being arranged in the mounting groove (43), and a first stopper capable of preventing the second rack (922) from sliding along the length direction of the mounting groove (43) is also arranged on the mounting groove (43) and the second rack (922); The mounting groove (43) is formed in a U shape, and 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), and a second limiting member (44) capable of preventing the second rack (922) from escaping upward from the mounting groove (43) is arranged on the outer side of the mounting groove (43); a pressing portion (431) capable of being pressed on the step (9222) is formed on the top of the second limiting member (44), and the lower part of the second limiting member (44) is buckled on the outer side wall of the mounting groove (43) by a buckle; The gear and rack transmission assembly (92') includes a fourth rack (921'), a fifth rack (922'), a fourth gear (923'), a fifth gear (924'), and a sixth gear (925'). There are two sliding members (4') and they are arranged on both sides of the top plate respectively. The fourth rack (921') is arranged on the sliding member (4') on one side of the panel. The fourth gear (923') is connected to the output shaft of the motor (91') and meshes with the fifth gear (924') for transmission. The fifth gear (924') meshes with the fourth rack (921') for transmission and is connected to the sixth gear (925') through the second connecting shaft (926'). The sixth gear (925') meshes with the fifth rack (922') for transmission. The fifth rack (922') is arranged on the sliding member (4') on the other side of the panel.

2. The cooking appliance according to claim 1, characterized in that: When the panel (2) is driven and in an open state, the top edge (22) of the panel (2) is inclined toward the rear side relative to the bottom edge (21).

3. The cooking appliance according to claim 1, characterized in that: The movement trajectory (3) of the panel (2) driven by the panel driving mechanism (a) is L-shaped with a smooth transition at the bend, and the shape of the first guide groove (71) matches the above-mentioned movement trajectory (3).

4. The cooking appliance according to claim 3, characterized in that: The motion track (3) comprises a horizontal section (31), a vertical section (32) and an arc section (33); the horizontal section (31) is arranged to extend forward and backward 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 downward.

5. The cooking appliance according to claim 1, characterized in that: The first connecting rod (5) is provided with a second guide groove (51) close to the first end and arranged along the length direction of the first connecting rod (5), and the side wall of the sliding member (4) is provided with a second guide column (41) which is rotatably connected to the second guide groove (51) and can slide back and forth along the second guide groove (51).

6. The cooking appliance according to claim 1, characterized in that: It also includes a second connecting rod (6), the first end of which is rotatably connected to the side wall of the sliding member (4) and the connection point is located on the rear side of the first guide column (8), and the second end of the second connecting rod (6) is rotatably connected to the first connecting rod (5) through the first guide column (8).

7. The cooking appliance according to claim 1, characterized in that: The outer wall of the sliding member (4) is provided with a guide portion (42) arranged in the length direction. Correspondingly, the top plate (1) is provided with a guide rail (11) extending forward and backward. The side of the guide rail (11) is provided with a third guide groove (111) for the guide portion (42) to slide forward and backward.

8. The cooking appliance according to any one of claims 1 to 7, characterized in that: Both ends of the first guide groove (71) are respectively provided with outwardly extending clamping grooves (711), and a buffering member (72) capable of buffering the movement trend of the first guide column (8) is arranged in the clamping groove (711).

9. The cooking appliance according to claim 8, characterized in that: The buffer member (72) comprises a positioning portion (721) which can be embedded in the card slot (711) and a contact portion (722) which is located in the first guide slot (71) and can contact the first guide column (8); the contact portion (722) is formed into an arc-shaped structure extending along the inner end surface of the first guide slot (71).

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