CN218279307U

CN218279307U - Inner container structure with lighting device and cooking equipment

Info

Publication number: CN218279307U
Application number: CN202222408545.9U
Authority: CN
Inventors: 刘子厚
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-01-13
Anticipated expiration: 2032-09-09

Abstract

The utility model relates to an inner bag structure and cooking equipment with lighting device, including inner bag and lighting device, set up the illumination zone that supplies lighting device's illumination to kick into on the lateral wall of this inner bag, a serial communication port, the illumination zone includes first illumination zone and second illumination zone, this first illumination zone and second illumination zone set up on the first lateral wall of inner bag from top to bottom, and it is corresponding with one of them layer culinary art layer of inner bag respectively, and this first lateral wall is one of them of the left side wall or the right side wall of inner bag, above-mentioned lighting device sets up outside first lateral wall, and can use the first center of rotation axle of the above-mentioned first lateral wall of perpendicular to as the surface of center along first lateral wall round trip rotary motion between above-mentioned first illumination zone and second illumination zone, and fix a position on first illumination zone or second illumination zone. The utility model discloses can realize the illumination to the culinary art layer that first irradiation zone and second irradiation zone correspond as required, promote the illuminating effect to food.

Description

Inner container structure with lighting device and cooking equipment

Technical Field

The utility model relates to a cooking equipment field especially relates to an inner bag structure and cooking equipment with lighting device.

Background

In order to facilitate a user to observe the cooking state of food in the inner container, the current cooking devices (such as a steam box, an oven, a steaming oven and the like) on the market are generally provided with an illuminating device. For example, chinese utility model patent with patent number ZL201821853779.1 (the publication number is CN 209269437U) discloses a steam oven, including box and inner bag, be equipped with water tank and steam generator between box and the inner bag, the roof fixed mounting of inner bag has lighting components, and lighting components includes light-passing board, lamp and lamp shade, the inner bag roof has heavy platform, the light-passing board passes through sealed glue bonding to be fixed in the heavy platform, lamp shade fixed mounting is on the inner bag. The lighting device is arranged on the top of the inner container or the side wall of the inner container, so that the lighting device can only irradiate to food on a certain layer, when multilayer food is cooked simultaneously, a user cannot effectively see the cooking state of all the food, the lighting effect is poor, and the judgment of the user on the cooking time is influenced.

Disclosure of Invention

The utility model aims to solve the first technical problem that provides an inner bag structure that has lighting device that illuminating effect is good to prior art.

The utility model aims to solve the second technical problem that provide a liner structure with lighting device that illuminating effect is good and can throw light on to the arbitrary layer of inner bag to prior art.

The third technical problem to be solved in the utility model is to provide a good and convenient to use's of illuminating effect inner bag structure with lighting device to prior art.

The fourth technical problem to be solved of the present invention is to provide a cooking apparatus having the above-mentioned inner container structure.

The utility model provides a technical scheme that at least one above-mentioned technical problem adopted is: an inner container structure with a lighting device comprises an inner container and the lighting device, wherein the side wall of the inner container is provided with an irradiation area for the incidence of the lighting light of the lighting device, and the inner container structure is characterized in that the irradiation area comprises a first irradiation area and a second irradiation area, the first irradiation area and the second irradiation area are arranged on the first side wall of the inner container from top to bottom and respectively correspond to one layer of cooking layer of the inner container, the first side wall is one of the left side wall or the right side wall of the inner container,

the lighting device is arranged outside the first side wall, can rotate and move back and forth between the first irradiation area and the second irradiation area along the outer surface of the first side wall by taking a first rotation central shaft which is vertical to the first side wall as a center, and is positioned on the first irradiation area or the second irradiation area.

Furthermore, a first rotating shaft extending along the direction of the first rotating center shaft penetrates through the first side wall of the inner container, the first rotating shaft is exposed out of one end of the inner container and is provided with a first rotating gear, the lighting device further comprises a first transmission gear, a first transmission tooth surface meshed with the first rotating gear is arranged on the wheel surface on one side of the first transmission gear along the circumferential direction, a first connecting piece is fixed on the wheel surface on the other side of the first transmission gear, and the lighting device is installed at the free end of the first connecting piece. Therefore, the first rotating shaft rotates to drive the first rotating gear to rotate, the first transmission gear drives the first connecting piece to rotate, and therefore the lighting device can rotate between the first irradiation area and the second irradiation area.

Further, the irradiation area also comprises a third irradiation area and a fourth irradiation area, the third irradiation area and the fourth irradiation area are vertically arranged on a second side wall of the inner container and respectively correspond to one cooking layer of the inner container, the second side wall is the other one of the left side wall or the right side wall of the inner container,

and another one of the lighting devices is disposed outside the second sidewall, is capable of rotating back and forth between the third irradiation region and the fourth irradiation region along an outer surface of the second sidewall around a second rotation center axis perpendicular to the second sidewall, and is positioned on the third irradiation region or the fourth irradiation region. Through set up third irradiation area and fourth irradiation area on the second lateral wall, realize the simultaneous illumination of inner bag left and right sides to further promote the illuminating effect to the inner bag inside.

Furthermore, a second rotating shaft extending along the direction of the second rotating central shaft penetrates through a second side wall of the inner container, a second rotating gear is mounted at one end, exposed out of the inner container, of the second rotating shaft, a second transmission gear is further included, a second transmission tooth surface meshed with the second rotating gear is circumferentially arranged on a wheel surface on one side of the second transmission gear, a second connecting piece is fixed on a wheel surface on the other side of the second transmission gear, and the lighting device is mounted at the free end of the second connecting piece. Therefore, the second rotating shaft rotates to drive the second rotating gear to rotate, the second connecting piece is driven to rotate through the second transmission gear, so that the lighting device can rotate and move between the third irradiation area and the fourth irradiation area, and the lighting device can be positioned on the third irradiation area or the fourth irradiation area through the meshing of the second rotating gear and the second transmission gear surface on the second transmission gear.

Furthermore, the first irradiation area and the fourth irradiation area correspond to the same cooking layer of the inner container and are arranged right and left oppositely, the second irradiation area is positioned below the first irradiation area, the third irradiation area is positioned above the fourth irradiation area, and the second irradiation area and the third irradiation area are arranged in a staggered mode from front to back. The cooking layer of the inner container is generally three layers, and the lighting of each layer of the inner container can be realized through the design.

Further, the first transmission tooth surface and the second transmission tooth surface are both arc-shaped, and the central angle of the first transmission tooth surface is equal to the rotation included angle between the first irradiation region and the second irradiation region, and correspondingly, the central angle of the second transmission tooth surface is equal to the rotation included angle between the third irradiation region and the fourth irradiation region. Therefore, the lighting devices can be rotated and moved between the first irradiation area and the second irradiation area and between the third irradiation area and the fourth irradiation area better, and the lighting devices are screwed out of the corresponding two irradiation areas.

Further, the first connecting piece and the second connecting piece are straight rod-shaped lamp holders. So that each transmission gear more stably drives the lighting device on the transmission gear to rotate and move between the two corresponding irradiation areas.

Further, a first driving gear is installed at the other end of the first rotating shaft, a second driving gear is installed at the other end of the second rotating shaft,

the cooking plate is characterized by further comprising a cooking plate horizontally placed in the inner container, a first driving tooth surface and a second driving tooth surface which extend forwards and backwards are respectively arranged on the left plate edge and the right plate edge of the cooking plate, the first driving tooth surface can be meshed with the first driving gear, the second driving tooth surface can be meshed with the second driving gear, and in an initial state, each lighting device is respectively positioned in the first irradiation area and the fourth irradiation area; under the state that the cooking plate is inserted into the cooking layer corresponding to the second irradiation area, a first driving tooth surface on the cooking plate is meshed with the first driving gear to drive the lighting device to rotate and move from the first irradiation area to the second irradiation area; under the state that the cooking plate is inserted into the cooking layer corresponding to the third irradiation area, a second driving tooth surface on the cooking plate is meshed with the second driving gear to drive the lighting device to rotate and move from the fourth irradiation area to the third irradiation area.

Further, the first irradiation area, the second irradiation area, the third irradiation area and the fourth irradiation area comprise irradiation windows arranged on corresponding side walls of the inner container and high-temperature-resistant light-transmitting plates sealed in the irradiation windows. On the basis of ensuring that the irradiation light of the lighting device is smoothly injected into the inner container, the influence of high temperature in the inner container on the lighting device is avoided.

In order to further solve the second technical problem, the following technical solutions are adopted: a cooking device is characterized by comprising the liner structure with the lighting device.

Compared with the prior art, the utility model has the advantages of: be provided with first irradiation region and second irradiation region from top to bottom respectively on the first lateral wall of inner bag, this first irradiation region and second irradiation region respectively with one of them one deck culinary art layer of inner bag corresponding to, lighting device can make a round trip rotary motion and fix a position on first irradiation region or second irradiation region between above-mentioned first irradiation region and second irradiation region, thereby can realize the illumination to the culinary art layer that first irradiation region and second irradiation region correspond as required, promote the illuminating effect to food.

Drawings

Fig. 1 is a schematic structural view of a cooking plate in a first cooking layer state according to an embodiment of the present invention;

FIG. 2 is a schematic view of the structure of FIG. 1 in another direction;

fig. 3 is a schematic structural view of the cooking plate in the second cooking layer state according to the embodiment of the present invention;

fig. 4 is a schematic structural view of the cooking plate in the third cooking layer state according to the embodiment of the present invention;

FIG. 5 is an enlarged view of portion A of FIG. 1;

fig. 6 is an enlarged view of a portion B in fig. 2.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the invention can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

As shown in fig. 1 to 6, a cooking apparatus (for example, a steam box, an oven, or a steam oven) includes an inner container 1, which includes the inner container 1 and an illumination device 6, and an irradiation region into which illumination light from the illumination device 6 is incident is opened on a side wall of the inner container 1. In this embodiment, the lighting device 6 is an LED lamp, and the inner container 1 sequentially includes a first cooking layer, a second cooking layer, and a third cooking layer from bottom to top.

Further, the irradiation regions include a first irradiation region 11 and a second irradiation region 12 which are vertically disposed on the left side wall of the inner container 1. Specifically, the first irradiation region 11 is located at a lower rear side of the second irradiation region 12, and the first irradiation region 11 corresponds to a first cooking layer of the inner container 1, and the second irradiation region 12 corresponds to a second cooking layer of the inner container 1. The lighting device 6 is disposed outside the left side wall of the inner container 1, can rotate back and forth between the first irradiation region 11 and the second irradiation region 12 along the outer surface of the first side wall with a first rotation center axis perpendicular to the first side wall as a center, and is positioned on the first irradiation region 11 or the second irradiation region 12. It can be seen that the first irradiation region 11 and the second irradiation region 12 are on a circular locus centered on the first rotation center axis.

The utility model discloses in, be provided with first irradiation zone 11 and second irradiation zone 12 from top to bottom on the left side wall of inner bag 1 respectively, this first irradiation zone 11 and second irradiation zone 12 respectively with one of them one deck culinary art layer of inner bag 1 corresponding, and, lighting device 6 can make a round trip rotary motion and fix a position on first irradiation zone 11 or second irradiation zone 12 between above-mentioned first irradiation zone 11 and second irradiation zone 12, thereby can realize the illumination to the culinary art layer that first irradiation zone 11 and second irradiation zone 12 correspond as required, promote the illuminating effect to food.

Further, a first rotating shaft 31 extending along the first rotating central axis direction is disposed through the left side wall of the inner container 1, one end of the first rotating shaft 31 exposed out of the inner container 1 is mounted with a first rotating gear 311, and the lighting device further includes a first transmission gear 41, a first transmission gear surface 411 engaged with the first rotating gear 311 is disposed on one side wheel surface of the first transmission gear 41 along the circumferential direction, a first connecting member 51 is fixed on the other side wheel surface, and the lighting device 6 is mounted on a free end of the first connecting member 51. In this way, the first rotating shaft 31 rotates to drive the first rotating gear 311 to rotate, and the first transmission gear 41 drives the first connecting piece 51 to rotate, so that the lighting device 6 is rotationally moved between the first irradiation region 11 and the second irradiation region 12, and the lighting device 6 can be positioned on the first irradiation region 11 or the second irradiation region 12 by the engagement of the first rotating gear 311 and the first transmission tooth surface 411 on the first transmission gear 41.

Further, a third irradiation region 13 and a fourth irradiation region 14 are respectively disposed on the right side wall of the inner container 1 up and down, and specifically, the third irradiation region 13 is located on the upper front side of the fourth irradiation region 14, wherein the fourth irradiation region 14 corresponds to the second cooking layer of the inner container 1, and the fourth irradiation region 14 corresponds to the third cooking layer of the inner container 1. Another lighting device 6 is disposed outside the right side wall of the liner 1, and the lighting device 6 can move back and forth between the third irradiation region 13 and the fourth irradiation region 14 along the outer surface of the second side wall with the second rotation central axis perpendicular to the second side wall as the center, and is positioned on the third irradiation region 13 or the fourth irradiation region 14. Through set up third irradiation region 13 and fourth irradiation region 14 on the second lateral wall, realize the simultaneous lighting of inner bag 1 left and right sides to further promote the inside illuminating effect to inner bag 1.

Further, a second rotating shaft 32 extending along the second rotating central axis direction is disposed through a second sidewall of the inner container 1, a second rotating gear 321 is mounted on one end of the second rotating shaft 32 exposed out of the inner container 1, the internal combustion engine further includes a second transmission gear 42, a second transmission tooth surface 421 engaged with the second rotating gear 321 is disposed on a wheel surface on one side of the second transmission gear 42 along the circumferential direction, a second connecting member 52 is fixed on the wheel surface on the other side, and the lighting device 6 is mounted on a free end of the second connecting member 52. In this way, the second rotating shaft 32 rotates to drive the second rotating gear 321 to rotate, and the second connecting member 52 is driven to rotate by the second transmission gear 42, so that the lighting device 6 is rotationally moved between the third irradiation region 13 and the fourth irradiation region 14, and the lighting device 6 can be positioned on the third irradiation region 13 or the fourth irradiation region 14 by the engagement of the second rotating gear 321 and the second transmission tooth surface 421 on the second transmission gear 42.

Preferably, in this embodiment, the first irradiation area 11 and the fourth irradiation area 14 are disposed right and left, and the first irradiation area 11, the second irradiation area 12, the third irradiation area 13, and the fourth irradiation area 14 each include an irradiation window 10 opened on a corresponding side wall of the inner container 1 and a high temperature resistant light-transmitting plate 2 sealed in the irradiation window 10. On the basis of ensuring that the irradiation light of the lighting device 6 is smoothly emitted into the inner container 1, the influence of the high temperature in the inner container 1 on the lighting device 6 is avoided.

Preferably, the first transmission tooth surface 411 and the second transmission tooth surface 421 are both arc-shaped, and a central angle of the first transmission tooth surface 411 is equal to a rotation included angle between the first irradiation region 11 and the second irradiation region 12, and correspondingly, a central angle of the second transmission tooth surface 421 is equal to a rotation included angle between the third irradiation region 13 and the fourth irradiation region 14. Therefore, the lighting devices 6 can be better rotated and moved between the first irradiation area 11 and the second irradiation area 12 and between the third irradiation area 13 and the fourth irradiation area 14, and the lighting devices 6 are rotated out of the corresponding two irradiation areas. In addition, the first connecting member 51 and the second connecting member 52 are straight rod-shaped lamp holders, so that each transmission gear can more stably drive the lighting device 6 thereon to rotate and move between the corresponding two irradiation areas.

Further, a first driving gear 312 is mounted to the other end of the first rotating shaft 31, and a second driving gear 322 is mounted to the other end of the second rotating shaft 32. A cooking plate 7 (such as a steaming plate, a baking plate, etc.) horizontally placed in the inner container 1 is further included, the left and right plate edges of the cooking plate 7 are respectively provided with a first driving tooth face 71 and a second driving tooth face 72 extending back and forth, wherein the first driving tooth face 71 can be meshed with the first driving gear 312, the second driving tooth face 72 can be meshed with the second driving gear 322, and in an initial state, each lighting device 6 is respectively located in the first irradiation area 11 and the fourth irradiation area 14; in a state that the cooking plate 7 is inserted into the cooking layer (first cooking layer) corresponding to the second irradiation region 12, the first driving tooth face 71 on the cooking plate 7 is engaged with the first driving gear 312 to drive the lighting device 6 to rotate from the first irradiation region 11 to the second irradiation region 12; in a state where the cooking plate 7 is inserted into the cooking layer (third cooking layer) corresponding to the third irradiation region 13, the second driving tooth 72 of the cooking plate 7 is engaged with the second driving gear 322 to drive the lighting device 6 to rotate from the fourth irradiation region 14 to the third irradiation region 13.

The utility model discloses a working process as follows:

in the initial state, the left illumination device 6 is located in the first illumination area 11 and the right illumination device 6 is located in the fourth illumination area 14, and at this time, if the user works with the second cooking layer, the user may insert the cooking plate 7 directly into the second cooking layer.

If the user uses the first cooking layer, the cooking plate 7 is placed into the first cooking layer, at this time, the first driving tooth surface 71 on the cooking plate 7 is meshed with the first driving gear 312 to drive the first driving gear 312 to rotate counterclockwise (seen from the inner container 1 to the outside), and further drive the first transmission gear 41 to rotate counterclockwise (seen from the inner container 1 to the outside), and the first rotating gear 311 drives the left lighting device 6 to rotate clockwise (seen from the inner container 1 to the outside). Since the number of teeth of the first driving tooth face 71 on the cooking plate 7 is 1/4 of the number of teeth of the first driving gear 312, the first driving gear 312 rotates by 90 °, and then drives the left side illumination device 6 to rotate by 90 ° to the second illumination zone 12, so that the left side illumination device 6 can illuminate the cooking plate 7 placed on the first cooking layer. When the cooking plate 7 is taken out from the first cooking layer, it is restored to the above-described initial state.

Similarly, if the user uses the third cooking layer, the cooking plate 7 is placed into the third cooking layer, at this time, the second driving tooth surface 72 on the cooking plate 7 is meshed with the second driving gear 322 to drive the second driving gear 322 to rotate clockwise (seen from the inner container 1 to the outside), and then the second transmission gear 42 rotates clockwise (seen from the inner container 1 to the outside), and the second transmission gear 42 drives the right-side lighting device 6 to rotate counterclockwise (seen from the inner container 1 to the outside) through the second rotating gear 321. Since the number of teeth of the second driving tooth surface 72 on the cooking plate 7 is 1/4 of the number of teeth of the second driving gear 322, the second driving gear 322 rotates by 90 °, and then drives the right illumination device 6 to rotate by 90 ° to the fourth illumination area 14, so that the right illumination device 6 can illuminate the cooking plate 7 placed on the third cooking layer. When the cooking plate 7 is taken out from the third cooking layer, it is restored to the initial state.

Claims

1. A liner structure with a lighting device comprises a liner (1) and the lighting device (6), wherein irradiation areas for incidence of lighting light of the lighting device (6) are arranged on the side wall of the liner (1), and the liner structure is characterized in that the irradiation areas comprise a first irradiation area (11) and a second irradiation area (12), the first irradiation area (11) and the second irradiation area (12) are vertically arranged on the first side wall of the liner (1) and respectively correspond to one cooking layer of the liner (1), and the first side wall is one of the left side wall or the right side wall of the liner (1),

the lighting device (6) is arranged outside the first side wall, can rotate and move back and forth between the first irradiation area (11) and the second irradiation area (12) along the outer surface of the first side wall by taking a first rotation central axis perpendicular to the first side wall as a center, and is positioned on the first irradiation area (11) or the second irradiation area (12).

2. The inner container structure with the lighting device as claimed in claim 1, wherein a first rotating shaft (31) extending along the first rotating central axis direction is disposed through a first sidewall of the inner container (1), a first rotating gear (311) is mounted on one end of the first rotating shaft (31) exposed out of the inner container (1), the inner container structure further comprises a first transmission gear (41), a first transmission gear surface (411) engaged with the first rotating gear (311) is disposed on a wheel surface on one side of the first transmission gear (41) along a circumferential direction, a first connecting member (51) is fixed on the wheel surface on the other side, and the lighting device (6) is mounted on a free end of the first connecting member (51).

3. The liner structure with a lighting device according to claim 2, wherein the irradiation regions further comprise a third irradiation region (13) and a fourth irradiation region (14), the third irradiation region (13) and the fourth irradiation region (14) are disposed on a second sidewall of the liner (1) up and down and respectively correspond to one of the cooking layers of the liner (1), the second sidewall is the other one of the left sidewall or the right sidewall of the liner (1),

and another one of the lighting devices (6) is disposed outside the second side wall, is capable of rotating back and forth between the third irradiation region (13) and the fourth irradiation region (14) along the outer surface of the second side wall with a second rotation center axis perpendicular to the second side wall as a center, and is positioned on the third irradiation region (13) or the fourth irradiation region (14).

4. The inner container structure with the lighting device according to claim 3, wherein a second rotating shaft (32) extending along the second rotating central axis direction is arranged on a second side wall of the inner container (1) in a penetrating manner, a second rotating gear (321) is installed at one end of the second rotating shaft (32) exposed out of the inner container (1), the inner container structure further comprises a second transmission gear (42), a second transmission tooth surface (421) meshed with the second rotating gear (321) is arranged on a wheel surface on one side of the second transmission gear (42) along the circumferential direction, a second connecting piece (52) is fixed on the wheel surface on the other side, and the lighting device (6) is installed at a free end of the second connecting piece (52).

5. The liner structure with a lighting device according to claim 4, wherein the first irradiation region (11) and the fourth irradiation region (14) are both corresponding to the same cooking layer of the liner (1) and are arranged right and left, the second irradiation region (12) is located below the first irradiation region (11), the third irradiation region (13) is located above the fourth irradiation region (14), and the second irradiation region (12) and the third irradiation region (13) are arranged in a staggered manner from front to back.

6. The liner structure with the lighting device according to claim 4 or 5, wherein the first driving tooth surface (411) and the second driving tooth surface (421) are both circular arc-shaped, and the central angle of the first driving tooth surface (411) is equal to the rotation angle between the first irradiation region (11) and the second irradiation region (12), and correspondingly, the central angle of the second driving tooth surface (421) is equal to the rotation angle between the third irradiation region (13) and the fourth irradiation region (14).

7. The liner structure with a lighting device as claimed in claim 4 or 5, wherein the first connector (51) and the second connector (52) are straight rod-shaped lamp holders.

8. The inner container structure with an illumination device as set forth in claim 4 or 5, wherein a first driving gear (312) is installed at the other end of the first rotation shaft (31), and a second driving gear (322) is installed at the other end of the second rotation shaft (32),

the cooking plate is characterized by further comprising a cooking plate (7) horizontally placed in the inner container (1), wherein a first driving tooth surface (71) and a second driving tooth surface (72) which extend forwards and backwards are respectively arranged on the left plate edge and the right plate edge of the cooking plate (7), the first driving tooth surface (71) can be meshed with the first driving gear (312), the second driving tooth surface (72) can be meshed with the second driving gear (322),

in the initial state, each lighting device (6) is respectively positioned in the first irradiation area (11) and the fourth irradiation area (14); under the state that the cooking plate (7) is inserted into the cooking layer corresponding to the second irradiation area (12), a first driving tooth surface (71) on the cooking plate (7) is meshed with the first driving gear (312) to drive the lighting device (6) to rotate and move from the first irradiation area (11) to the second irradiation area (12); under the state that the cooking plate (7) is inserted into the cooking layer corresponding to the third irradiation area (13), a second driving tooth surface (72) on the cooking plate (7) is meshed with the second driving gear (322) to drive the lighting device (6) to rotate and move from the fourth irradiation area (14) to the third irradiation area (13).

9. The liner structure with a lighting device according to any one of claims 3 to 5, wherein the first irradiation region (11), the second irradiation region (12), the third irradiation region (13) and the fourth irradiation region (14) each comprise an irradiation window (10) opened on the corresponding side wall of the liner (1) and a high temperature resistant light-transmitting plate (2) sealed in the irradiation window (10).

10. A cooking apparatus having an inner container structure with an illumination device as claimed in any one of claims 1 to 9.